market announcement - asx · 2017. 5. 3. · 04 ay 2017 highlights market announcement 2017 update...
TRANSCRIPT
MARKET ANNOUNCEMENT ndash 04 MAY 2017 1
Cobalt Blue Holdings LimitedACN 614 466 607 Address Level 2 66 Hunter St
Sydney NSW 2000Ph +61 2 9966 5629Website wwwcobaltblueholdingscomEmail infocobaltblueholdingscomSocial CobaltBlueEnergy
cobalt-blue-holdings
Cobalt Blue Holdings Ltd
A Green Energy Exploration Company
04 May 2017 Highlights
Market Announcement
2017 Update ndash Strong Drilling Results Continuea Cobalt Blue Holdings Limited (ASXCOB) is pleased to provide an update on its
recently completed 1H 2017 resource definition drilling program at Thackaringa NSW a Results support potential for significant enhancement of Mineral Resource
a Results support potential to enhance the average grade within the overall mineralised envelope
a The current announcement summarises assay results received year to date from seven diamond drill (DD) holes (1011 metres total) and 24 reverse circulation (RC) holes (2801 metres total) within the Railway Pyrite Hill and Big Hill deposits COB will announce results from the remaining seven DD and 14 RC holes on completion of the assay process
a Current assay results continue to define a broad mineralised envelope and confirm the Thackaringa project as a significant cobalt-pyrite deposit
a At Railway current assays confirm high-grade intersections of mineralisation within a wide and continuous envelope Best mineralised intercepts include
a Drillhole 17THD06 ndash 46m 1136ppm Co 114 S and 101 Fe from 39m
a Drillhole 17THR001 ndash 36m 1075ppm Co 106 S and 104 Fe from 27m
a Drillhole 17THR005 ndash 20m 1053 ppm Co 128 S and 126 Fe from 52m
a Drillhole 17THR008 ndash 41m 1319ppm Co 122 S and 112 Fe from 37m and
a Drillhole 17THR011 ndash 53m 1116ppm Co 120 S and 109 Fe from 30m
a At Pyrite Hill assays confirm the mineralisation within the host lithology Best mineralised intercepts include
a Drillhole 17THD01 ndash 89m 982ppm Co 94 S and 87 Fe from 34m
a Drillhole 17THR016 ndash 49m 1096ppm Co 129 S and 134 Fe from 66m
a Drillhole 17THR017 ndash 58m 1383ppm Co 132 S and 128 Fe from 54m and
a Drillhole 17THR021 ndash 20m 1204ppm Co 131 S and 127 Fe from 44m
a Best mineralised intercepts at Big Hill include
a Drillhole 17THR013 ndash 54m 888ppm Co 54 S and 50 Fe from 19m drill depth
ASX Code COB
Commodity Exposure
Cobalt amp Sulphur
Directors amp Management
Robert Biancardi Non-Exec Chairman
Hugh Keller Non-Exec Director
Trangie Johnston Non-Exec Director
Joe Kaderavek CEO amp Exec Director
Ian Morgan Company Secretary
Capital StructureOrdinary Shares on Issue at 03052017 95m Options (Unlisted ndash not vested) 2825m Market Cap (undiluted) $27m
Share Price
Share Price at 03052017 $022
015
018
020
023
025
028
030
033
035Price (c)
02Feb17 03Mar17 29Mar17 04May17
02 February to 04 May 2017Cobalt Blue Holdings (COB) Share Price
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 2
Cobalt Blue Holdings Limited is delighted to announce the completion of its 1H 2017 resource definition drilling program at the Thackaringa cobalt project west of Broken Hill NSW Completion of this campaign is a major milestone The current assay will be used as the basis for a new and updated resource estimation process commencing in May
This announcement summarises the assays from a total of thirty one (31) drill holes completed for a total of 3812 metres Break-down of drilling by deposit
Reverse Circulation Drilling Diamond Drilling
Deposit No Drill holes Metres No Drill holes Metres
Pyrite Hill 9 930 3 352
Big Hill 3 314 2 219
Railway 12 1557 2 440
Total 24 2801 7 1011
Drilling to date has focussed on the higher priority Railway and Pyrite Hill areas which together contribute 95 of the existing Inferred Mineral Resource inventory of 331Mt at 833ppm Co (reference COB Replacement Prospectus released 31 January 2017)
Figure 1 Cobalt Blue tenements location and currentproposed infrastructureFor
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 3
Following the Companyrsquos stated accelerated exploration strategy the 1H 2017 drilling program was completed by three drill rigs (one diamond and two reverse circulation) Inclined drill holes (between 40deg and 60deg) were designed to intersect the steeply dipping deposits at an optimal orientation Drill results continue to confirm the predictive geological model
The Thackaringa deposits have a combined strike length of over 45 kilometres varying from 25 to 100 metres width Significant local thickening of the mineralised envelope is due to the extensive development of isoclinal folding within the host lithology unit Initial interpretation of 2017 data suggests that this deformation may locally enhance cobalt and pyrite grade This new structural information provides a further opportunity to define high grade lenses within the broader mineralised envelope At Railway zones of high grade cobalt mineralisation were intersected in the hanging wall of the deposit and demonstrate strong continuity
Drilling undertaken to date has focussed on the shallow mineralisation ndash to approximately 150 metres below surface with confirmed mineralisation to greater depths Mineralisation at all three of the deposits remains open down-dip In addition to potential depth extension discrete pods of mineralisation mapped within the footwall at Railway deposit were intersected by drilling and offer additional footwall exploration potential The JV technical team is currently finalising geological modelling to further guide the pending revision of the Mineral Resource Estimate This process will begin in May 2017 on delivery of the final batch of assay results Further technical studies are continuing in parallel as the Company remains on schedule to deliver the Scoping Study by mid-2017
Field operations continue with rehabilitation of drill sites and preparations for the forecast commencement of baseline environmental and hydrological monitoring
Cobalt Blue Chairman Robert Biancardi commented
ldquoCOB is delighted with the timely and efficient conclusion to the drilling program Preliminary interpretation of the results supports the Companyrsquos belief that the Thackaringa JV is defining a world class cobalt-pyrite deposit We remain confident that data acquired during the 2016 and 2017 drilling programs will allow a significant enhancement in the estimated Mineral Resource Initial indications also suggest that recent work has enhanced the average grade within the overall mineralised enveloperdquo
Further results will be forthcoming from the final assay samples presently being processed which should be available for market release by the beginning of June The 2017 program comprised a significant RC program designed to improve drilling density in support of a forthcoming update of the Mineral Resource estimation and a Diamond Drilling program which ndash like the 2016 program ndash will provide ROM material for metallurgical testwork
Railway The Railway deposit is an elongated outcrop of mineralisation within a high-grade metamorphic host rock The pyrite-quartz-albite gneiss mineralised lithology has a total strike length of some 3000 metres continuing in a south-west arc to the Big Hill deposit which is offset by faulting (Figure 2)
Drilling at Railway comprised eight DD holes for a total of 1126m and 23 RC holes for a total 3053m The program was designed to close the spacing between holes to allow a re estimation of the existing Mineral Resource
The latest drilling assays confirm previous exploration results of high-grade cobalt and pyrite mineralisation Assays from Railway confirm broad continuous zones of cobalt and pyrite mineralisation significantly higher than the average resource grade (Figure 3)
Railway Results
Assays at Railway Trend confirm high grade intersections of mineralisation within a wide and continuous envelope Best mineralised intercepts include
a Drillhole 17THD06 ndash 46m 1136ppm Co 114 S and 101 Fe from 39m drill depth
a Drillhole 17THR001 ndash 36m 1075ppm Co 106 S and 104 Fe from 27m drill depth
a Drillhole 17THR005 ndash 20m 1053 ppm Co 128 S and 126 Fe from 52m drill depth
a Drillhole 17THR008 ndash 41m 1319ppm Co 122 S and 112 Fe from 37m drill depth
a Drillhole 17THR011 ndash 53m 1116ppm Co 120 S and 109 Fe from 30m drill depth
These results confirm the previous tenor and elevated grade of cobalt-pyrite mineralisation along the defined strike length Mineralisation at Railway remains open along strike and down-dip boosting the potential for an open pittable resource
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 4
Figure 2 Plan view of Railway Deposit For
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 5
Figure 3 Railway X-section along plane of 17THD07 For
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 6
Pyrite HillThe Pyrite Hill deposit is hosted within an extensively metamorphosed pyrite-albite-quartz gneiss The deposit has a strike length of 1200m and dips moderately to the east (Figure 5)
The drilling at Pyrite Hill comprised four DD holes for a total of 451m and 12 RC holes for a total 1308m The RC program was designed to close the spacing between existing holes to allow recalculation of the Mineral Resource the DD program comprised holes to twin existing RC holes and to provide material for metallurgical testwork
Pyrite Hill results
At Pyrite Hill assays confirm the down-dip mineralisation within the host lithology Best mineralised intercepts include
a Drillhole 17THD01 ndash 89m 982ppm Co 94 S and 87 Fe from 34m drill depth
a Drillhole 17THR016 ndash 49m 1096ppm Co 129 S and 134 Fe from 66m drill depth
a Drillhole 17THR017 ndash 58m 1383ppm Co 132 S and 128 Fe from 54m drill depth and
a Drillhole 17THR021 ndash 20m 1204ppm Co 131 S and 127 Fe from 44m drill depth
Figure 4 Logging ndash Thackaringa Diamond Drilling CoresFor
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 7
Figure 5 Plan view of Pyrite Hill
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 8
Figure 6 Pyrite Hill X-section along plane of 17THR017 For
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 9
Big HillThe Big Hill deposit is an off-set southwestern extension of the high-grade metamorphic host at Railway The drilling at Big Hill comprised two diamond holes for a total of 219m and three RC holes for a total of 314m The RC program was designed to test the mineralisation at sparsely explored north-eastern end of the prospect at an interpreted offset fault zone between Big Hill and Railway The diamond program comprised holes to provide solid core to assist the structural interpretation of this complex hinge structure
Big Hill results
The 2017 drilling at Big Hill has discovered some structural complications at a fault zone nevertheless some of the highest-yet cobalt mineralisation was intersected in this section Best mineralised intercepts include
a Drillhole 17THR013 ndash 54m 888ppm Co 54 S and 50 Fe from 19m drill depth
Figure 7 Field Crew - RC Drill Rig - Railway Deposit
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 10
Figure 8 Plan view of Big HillFor
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 11
Figure 9 Big Hill X-section along plane of 17THR013For
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 12
Cobalt Blue BackgroundCobalt Blue (ldquoCOBrdquo) is an exploration company focussed on green energy technology and strategic development to upgrade the existing mineral resource at the Thackaringa Cobalt Project in New South Wales This strategic metal is in strong demand for new generation batteries particularly lithium-ion batteries now being widely used in clean energy systems
COB has entered into a farm-in joint venture agreement with Broken Hill Prospecting Limited (ldquoBPLrdquo) in which COB acquired an initial 51 interest in the Thackaringa Cobalt Project COB will undertake exploration and development programs at the Thackaring Cobalt Project and subject to the achievement of milestones will acquire 100 of the Thackaringa Cobalt Project
The Thackaringa Project 23 km west of Broken Hill and 400km by rail from Port Pirie consists of four granted tenements (EL6622 EL8143 ML86 and ML87) with total area of 63 km2 The main target for exploration is well known and contains documented large tonnage cobalt bearing pyrite deposits The project area is under-explored with the vast majority of historical exploration directed at or around the outcropping pyritic cobalt deposits at Pyrite Hill and Big Hill
Potential to extend the Mineral Resource at Pyrite Hill Big Hill Railway and the other prospects is high Numerous other prospects within COBrsquos tenement package are early stage and under-explored
Looking forward we would like our shareholders to keep in touch with COB updates and related news items which we will post on our website the ASX announcements platform as well as social media such as Facebook ( ) and LinkedIn ( ) Please donrsquot hesitate to join the lsquoCOB friendsrsquo on social media and also to join our newsletter mailing list at our website
Joe KaderavekChief Executive Officerjoekaderavekcobaltblueholdingscom(02) 9966 5629
Competent Person StatementThe information in this report that relates to exploration results Mineral Resources and Targets is based on information compiled by Mr Anthony Johnston BSc (Hons) who is a Member of the Australian Institute of Mining and Metallurgy and who is a non-executive director of Cobalt Blue Holdings Limited the Chief Executive Officer of Broken Hill Prospecting Limited and the Technical Manager of the Joint Venture Mr Johnston has sufficient experience which is relevant to the style of mineralisation and type of deposits under consideration and to the activity which he is undertaking to qualify as a Competent Person as defined in the 2004 amp 2012 Edition of the ldquoAustralasian Code for Reporting of Exploration Results Mineral Resources and Ore Reservesrdquo Mr Johnston consents to the inclusion in the announcement of the matters based on his information in the form and context that the information appears
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 13
Appendix ndash JORC Code 2012 Edition ndash Table 1 Section 1 ndash Sampling Techniques and Data(Criteria in this section apply to all succeeding sections)
Criteria JORC Code Explanation Commentary
Sampling techniques
a Nature and quality of sampling (eg cut channels random chips or specific specialised industry standard measurement tools appropriate to the minerals under investigation such as down-hole gamma sondes or handheld XRF instruments etc) These examples should not be taken as limiting the broad meaning of sampling
a Include reference to measures taken to ensure sample repre-sentivity and the appropriate calibration of any measurement tools or systems used
a Aspects of the determination of mineralisation that are Material to the Public Report
a In cases where lsquoindustry standardrsquo work has been done this would be relatively simple (eg lsquoreverse circulation drilling was used to obtain 1 m samples from which 3 kg was pulverised to produce a 30 g charge for fire assayrsquo) In other cases more explanation may be required such as where there is coarse gold that has inherent sampling problems Unusual commodities or mineralisation types (eg submarine nodules) may warrant disclosure of detailed information
Diamond Drilling (DD)Pre-1990a Diamond drilling was used to obtain core from which irregular
intervals reflecting visual mineralisation and geological logging were hand-split or sawn Samples were submitted for analysis using a mixed acid digestion and AAS methodology
Post-1990 a Diamond drilling (one drill hole) was used to obtain core from
which irregular intervals reflecting visual mineralisation and geological logging were sawn (quarter core for HQ) Samples were submitted for analysis using a mixed acid digestion and ICP-OES methodology
2016 Metallurgical Drillinga Eight HQ diameter diamond drill holes (DD) were drilled at
the Thackaringa project in late 2016 They will be used as metallurgical reference holes and to twin some of the previous reverse circulation percussion (RC) holes for QAQC and assay comparison between DD and RC There were two holes drilled at Pyrite Hill two at Big Hill and four at Railway
a Diamond drilling was used to obtain core from which regular (one-metre) intervals were sawn with
a one half core dispatched for analysis using a mixed acid digestion and ICP-AES methodology
a the other half was further sawn such that one quarter- core was sent for metallurgical test work and the other quarter-core retained for archival purposes
Historical Reverse Circulation Drilling a RC drilling was used to obtain a representative sample by means
of riffle splitting with samples submitted for analysis using the above-mentioned methodologies
a Pre-2000 drill samples were assayed for a small and variable suite of elements (sometimes only cobalt) The post-2000 drill samples (5095 samples) are all assayed by ICP-MS for a suite of 33 elements
2017 Diamond Drilling Program a This announcement summarises the results from approximately
23 of the 2017 diamond drilling program Fourteen HQ diameter diamond drill holes (DD) were assayed at the Thackaringa project They will be used as metallurgical reference holes and to twin some of the previous reverse circulation percussion (RC) holes for QAQC and assay comparison between DD and RC There were four holes drilled at Pyrite Hill two at Big Hill and 8 at Railway
a Diamond drilling (17THD01-03) was used to obtain core from which regular (one-metre) intervals were sawn with
a one half core dispatched for analysis using a mixed acid digestion and ICP-AES methodology
a the other half was retained for future metallurgical test work and archival purposes
a Diamond drilling (17THD04-14) was used to obtain core from which regular (one-metre) intervals were sawn with
a one quarter core dispatched for analysis using a mixed acid digestion and ICP-AES methodology
a the other three quarters was retained for future metallurgical test work and archival purposes
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 14
Criteria JORC Code Explanation Commentary
Sampling techniques (continued)
2017 RC drilling Program a This announcement summarises the results from approximately
23 of the 2017 RC drilling program Thirty eight (38) RC drill holes were drilled amp assayed at the Thackaringa project They will be used to infill the drill spacing of historic holes to allow a re-estimation of the existing Mineral Resource There were 12 holes drilled at Pyrite Hill three at Big Hill and 23 at Railway
a RC drilling was used to obtain a representative sample by means of riffle splitting with samples submitted for analysis using the above-mentioned methodologies
a The 2017 drill samples are all assayed by ICP-MS for a suite of 33 elements
Drilling techniques
a Drill type (eg core reverse circulation open-hole hammer rotary air blast auger Bangka sonic etc) and details (eg core diameter triple or standard tube depth of diamond tails face-sampling bit or other type whether core is oriented and if so by what method etc)
a The Thackaringa drilling database comprises a total of forty-eight (48) DD holes and eighty-one (81) RC drill holes Diamond drilling was predominantly completed with standard diameter conventional HQ and NQ utilising RC and percussion pre-collars to an average 25 metres (see Drill-hole Information for further details) Early (1960-1970) drill holes utilised HX ndash AX diameters dependent on drilling depth Reverse circulation drilling utilised standard drill-hole diameters (48rdquo-55rdquo) with a face sampling hammer
a During 2013 a single diamond drill hole (13BED01) was completed at the Railway deposit using a triple tube system with a HQ3 diameter
Year Drilling Metres
1967 1 diamond drill hole 3042
1970 4 diamond drill holes 4966
1980 18 diamond and 1 RC drill hole 171123
1993 2 diamond drill holes 250
1998 11 RC drill holes 109325
2011 11 RC drill holes 1811
2012 20 RC drill holes 287425
2013 1 diamond drill hole 3492
2016 8 diamond drill holes 14848
2017 14 diamond drill holes and 38 RC drill holes 6472
Total 48 diamond and 81 RC drill holes 1684653
a This ASX release describes assay results from seven (7) diamond drill holes and twenty-four (24) RC holes completed and assayed by April 2017 Commencement of that drilling program was reported to ASX by the company in April 2017
a Diamond drilling was completed using a triple tube system with a HQ3 diameter
a Holes were drilled at angles between 40 and 60 degrees from horizontal and the resulting core was oriented as part of the logging process
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 15
Criteria JORC Code Explanation Commentary
Drill sample recovery
a Method of recording and assessing core and chip sample recoveries and results assessed
a Measures taken to maximise sample recovery and ensure representative nature of the samples
a Whether a relationship exists between sample recovery and grade and whether sample bias may have occurred due to preferential lossgain of finecoarse material
Diamond Drilling
a Historical core recoveries were accurately quantified through measurement of actual core recovered versus drilled intervals
a Historical diamond drilling employed conventional drilling techniques while diamond drilling completed by Broken Hill Prospecting utilised a triple-tube system to maximise sample recovery
a Core recovery of 997 was achieved during completion of drill hole 13BED01
a Core recovery of 98 was achieved during the 2016 diamond drilling program
a Core recovery of 933 was achieved during the 2017 diamond drilling program
a No relationship between sample recovery and grade has been observed
Reverse Circulation Drilling
a Reverse circulation sample recoveries were visually estimated during drilling programs Where the estimated sample recovery was below 100 this was recorded in field logs by means of qualitative observation
a Reverse circulation drilling employed adequate air (using a compressor and booster) to maximise sample recovery
a No relationship between sample recovery and grade has been observed
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 16
Criteria JORC Code Explanation Commentary
Logging a Whether core and chip samples have been geologically and geotechnically logged to a level of detail to support appropriate Mineral Resource estimation mining studies and metallurgical studies
a Whether logging is qualitative or quantitative in nature Core (or costean channel etc) photography
a The total length and percentage of the relevant intersections logged
a A qualified geoscientist has logged all reported drill holes in their entirety This logging has been completed to a level of detail considered to accurately support Mineral Resource estimation and metallurgical studies The parameters logged include lithology alteration mineralisation and oxidation These parameters are both qualitative and quantitative in nature
a Diamond drilling completed in 2017 by BPL has been subject to geotechnical logging with parameters recorded including rock-quality designation (RQD) fracture frequency and hardness
a During 2013 a considerable amount of historical drilling was re-logged through review of available core stored at Broken Hill as well the re-interpretation of historical reports where core or percussion samples no longer exist A total of eight (8) diamond drill holes and sixteen (16) diamond drill holes with pre-collars were re-logged as detailed below
Hole ID Deposit Max Depth Hole TypePre-Collar Depth (m)
67TH01 Pyrite Hill 3042 DDH1 ndash
70TH02 Pyrite Hill 1486 DDH1 ndash
70TH03 Pyrite Hill 1414 DDH1 ndash
70BH01 Big Hill 1027 DDH1 ndash
70BH02 Big Hill 1039 DDH1 ndash
80PYH13 Pyrite Hill 77 DDH1 ndash
80PYH14 Pyrite Hill 3003 DDH1 ndash
80BGH09 Big Hill 1005 DDH1 ndash
80PYH01 Pyrite Hill 2453 PDDH2 6
80PYH02 Pyrite Hill 513 PDDH2 3358
80PYH04 Pyrite Hill 55 PDDH2 387
80PYH05 Pyrite Hill 936 PDDH2 18
80PYH06 Pyrite Hill 855 PDDH2 18
80PYH07 Pyrite Hill 945 PDDH2 12
80PYH08 Pyrite Hill 110 PDDH2 8
80PYH09 Pyrite Hill 1005 PDDH2 8
80PYH10 Pyrite Hill 1453 PDDH2 255
80PYH11 Pyrite Hill 1031 PDDH2 18
80PYH12 Pyrite Hill 1095 PDDH2 42
80BGH05 Big Hill 5486 RCDDH3 455
80BGH06 Big Hill 6804 RCDDH3 58
80BGH08 Big Hill 797 RCDDH3 699
93MGM01 Pyrite Hill 70 RDDH4 24
93MGM02 Pyrite Hill 180 RDDH4 48
1 Diamond drill hole2 Diamond drill hole with percussion pre-collar3 Diamond drill hole with reverse circulation pre-collar4 Diamond drill hole with rotary air blast pre-collar
a Litho-geochemistry has been used to verify geological logging where available for drilling completed by Broken Hill Prospecting post 2010
a Representative reference trays of chips from reverse circulation drilling completed post 2010 have been retained by Broken Hill Prospecting
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 17
Criteria JORC Code Explanation Commentary
Sub-sampling techniques and sample preparation
a If core whether cut or sawn and whether quarter half or all core taken
a If non-core whether riffled tube sampled rotary split etc and whether sampled wet or dry
a For all sample types the nature quality and appropriateness of the sample preparation technique
a Quality control procedures adopted for all sub-sampling stages to maximise representivity of samples
a Measures taken to ensure that the sampling is representative of the in situ material collected including for instance results for field duplicatesecond-half sampling
a Whether sample sizes are appropriate to the grain size of the material being sampled
Diamond Drilling (DD)Pre-1990a Core samples were hand-split or sawn with re-logging of available
historical core (see Logging) indicating a 7030 (retainedassayed) split was typical The variation of sample ratios noted are consid-ered consistent with the sub-sampling technique (hand-splitting)
a No second half samples were submitted for analysis a It is considered water used for core cutting is unprocessed and
unlikely to have introduced sample contamination a Procedures relating to the definition of the line of cutting or splitting
are not available It is expected that lsquostandard industry practicersquo for the period was applied to maximize sample representivity
Post-1990 a NQ drilling core was sawn with half core submitted for assay a HQ drilling core was sawn with quarter core submitted for assay a No second half samples were submitted for analysis a It is considered water used for core cutting is unprocessed and
unlikely to have introduced sample contamination a Procedures relating to the definition of the line of cutting or splitting
are not available It is expected that lsquostandard industry practicersquo for the period was applied to maximise sample representivity
2016 Metallurgical Drilling a All HQ drill core was sawn into halves with each half then re-sawn
to provide 4 lengths of quarter core for each interval a One half core was submitted for assay a One quarter core was submitted for metallurgical test work a One quarter core was retained for archive a It is considered that the water used for core cutting is most
unlikely to have introduced sample contamination a Sample sawing and processing for test work were undertaken
according to lsquostandard industry practicersquo to maximise sample representivity
2017 Diamond Drilling a All HQ drill core was sawn into halves with each half then re-sawn to
provide 4 lengths of quarter core for each interval
a One quarter ndash one half core was submitted for assay
a One quarter ndash three quarter core was retained for archive
a It is considered that the water used for core cutting is most unlikely to have introduced sample contamination
a Sample sawing and processing for test work were undertaken according to lsquostandard industry practicersquo to maximise sample representivity
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 18
Criteria JORC Code Explanation Commentary
Sub-sampling techniques and sample preparation (continued)
Historical Reverse Circulation Drilling a Sub-sampling of reverse circulationpercussion chips was
achieved using a cyclone with cone or riffle splitter a During drilling operations the sample cyclone and splitter were
regularly cleaned to prevent down hole sample contamination a Dry sampling was achieved with the use of adequate air using a
compressor and booster where groundwater was encountered a During reverse circulation drilling completed by Broken Hill
Prospecting duplicate samples were collected at the time of drilling These were obtained by spearing the bulk material held in the PVC sacks using a spear made of 40mm diameter PVC pipe three samples were speared through the full depth of the bulk material and these were combined to form one sample
a The Thackaringa drilling database includes a total of 139 field duplicates collected during reverse circulation drilling This reflects a ratio of approximately one field duplicate in every 32 samples (31) for drill holes where duplicates were collected (31 drill holes for 4469 metres) and an overall ratio of one field duplicate in every 42 samples (24) for all reverse circulation drill holes (43 drill holes for 58015 metres)
a Statistical analysis of field duplicates collected during drilling completed by Broken Hill Prospecting (119 duplicates representing 86 of all field duplicates) considered 18 elements of which only chromium lanthanum and titanium show some bias in the duplicate samples For cobalt the confidence limits were evenly placed either side of zero and the duplicates are deemed to be representative of the original samples
2017 Reverse Circulation Drilling a Sub-sampling of reverse circulationpercussion chips was achieved
using a riffle splitter
a During drilling operations the splitter was regularly cleaned to prevent down hole sample contamination
a Dry sampling was achieved with the use of adequate air using a compressor and booster where groundwater was encountered
a During reverse circulation drilling completed by Broken Hill Prospecting duplicate samples were collected at the time of drilling These were obtained by riffle splitting the remnant bulk sample following collection of the primary split
a Field duplicate samples were collected regularly during drilling (for every 18th sample on average)
a Assay results received to date include analysis of 120 field duplicate pairs from 24 RC drill holes
a A measure of the average precision of the sampling sample preparation and assaying methods given by the mean per cent difference (MPD) assay values of the duplicate pairs is summarised below Overall the sampling and assay precision for Co Fe and S at economically significant grades is regarded as reasonable
RC Field Duplicate Pairs
Co Cut-Off Count Co MPD S MPD Fe MPD
All 120 13 16 9
200ppm 52 13 11 10
500ppm 34 12 9 9
1000ppm 20 8 7 7
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 19
Criteria JORC Code Explanation Commentary
Quality of assay data and laboratory tests
a The nature quality and appropriateness of the assaying and laboratory procedures used and whether the technique is considered partial or total
a For geophysical tools spectrometers handheld XRF instruments etc the parameters used in determining the analysis including instrument make and model reading times calibrations factors applied and their derivation etc
a Nature of quality control proce-dures adopted (eg standards blanks duplicates external laboratory checks) and whether acceptable levels of accuracy (ie lack of bias) and precision have been established
a The nature and quality of all assaying and laboratory procedures employed for samples obtained through drilling (diamond and reverse circulation) are considered lsquoindustry standardrsquo for the respective periods
a The assay techniques employed for drilling (diamond and reverse circulation) include mixed acid digestion with ICP-OES and AAS finishes These methods are considered appropriate for the targeted mineralisation and regarded as a lsquonear totalrsquo digestion technique with resistive phases not expected to affect cobalt analyses
a All samples have been processed at independent commercial laboratories including AMDEL Australian Laboratory Services (ALS) Analabs and Genalysis
a All samples from drilling completed by Broken Hill Prospecting during 2011-2012 were assayed at ALS in Orange New South Wales All samples from drilling completed by Broken Hill Prospecting during 2016-2017 were assayed at ALS Adelaide South Australia ALS is a NATA Accredited Laboratory and qualifies for JASANZ ISO90012008 quality systems ALS maintains robust internal QAQC procedures (including analysis of standards repeats and blanks)
a To monitor the accuracy of assay results from the 2017 Thackaringa drilling CRM standards were included in the assay sample stream every 24 samples (on average) for RC chips and every 30 samples for diamond core The CRM samples were purchased from Ore Research amp Exploration Pty Ltd and the results are summarised below
Cobalt Sulphur Iron
OREAS Standard Count plusmn1SD plusmn2SD plusmn3SD plusmn3SD+ plusmn1SD plusmn2SD plusmn3SD plusmn3SD+ plusmn1SD plusmn2SD plusmn3SD plusmn3SD+
160 Low S Blank (28ppm Co) 12 10 ndash ndash 2 7 ndash ndash 5 6 2 2 2
162 Medium Grade (631ppm Co) 53 37 12 3 ndash 32 18 3 ndash 14 12 13 14
163 Low Grade (230ppm Co) 40 30 8 2 ndash 7 25 7 1 2 3 2 33
165 High Grade (2445ppm Co) 13 11 2 ndash ndash 7 5 1 ndash 1 5 2 5
166 High Grade (1970ppm Co) 35 26 8 ndash 1 27 6 ndash 2 9 5 5 16
153 114 30 5 3 80 54 11 8 32 27 24 70
75 20 3 2 52 35 7 5 21 18 16 46
Cobalt CRM Standards
Internal COB assay QAQC protocols cobalt performed well with 95 standard analyses falling within two standard deviations of the certified value and 75 within one SD No systematic out-of-specification trends were identified and there was no discernible tendency for a particular Co standard to preferentially assay either higher or lower than the certified Co concentration
Cobalt Blanks
A number of blanks were also submitted with the RC chip and diamond core samples mdash the OREAS160 CRM is essentially a low-sulphide blank with respect to cobalt (28ppm) and the results of assay of this standard are summarised in Table 1 In addition five quartz sand blanks were submitted bracketing very pyrite-rich intervals in diamond drill holes 17THD06 and 17THD07 Overall the quartz sand blanks returned a maximum of 69ppm Co 004 S and 065 Fe which are regarded as similar to background values and any contamination during sample preparation at the assay laboratory is likely to be immaterial to the final results
Based on the assay of standards and blanks with 95 of the Co results falling within two standard deviations of the certified value it is concluded that the assay results for Co are likely to be representative for the material submitted with no additional source of inaccuracy or bias identified
Sulphur CRM Standards
sulphur was reasonably well-performed with 87 of the total 153 standard analyses falling within two standard deviations of the certified value and 95 within 3SD
Iron CRM Standards
Iron analysis of standards showed poor accuracy with a tendency to assay low mdash 46 of the assays fall outside of 3 SD typically but not exclusively lower than the certified value
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 20
Criteria JORC Code Explanation Commentary
Verification of sampling and assaying
a The verification of significant intersections by either inde-pendent or alternative company personnel
a The use of twinned holes
a Documentation of primary data data entry procedures data verification data storage (physical and electronic) protocols
a Discuss any adjustment to assay data
a Historical drilling intersections were internally verified by personnel employed by previous explorers including CRAE Pty Limited Central Austin Pty Limited and Hunter Resources Broken Hill Prospecting has completed a systematic review of the related data
a The Thackaringa drilling database exists in electronic form as a Microsoft Access database Information related to individual drill holes is stored in digital files as extracted from historical reports (typically including location plan section logs photos surveys assays and petrology)
a Historical drilling data available in electronic form has been re-formatted and imported into the drilling database
a Quantitative historical drilling data including assays have been captured electronically during systematic data compilation and validation completed by Broken Hill Prospecting
a Samples returning assays below detection limits are assigned half detection limit values in the database
a All significant intersections are verified by the Companyrsquos Exploration Manager and independent geological consultant
Location of data points
a Accuracy and quality of surveys used to locate drill holes (collar and down-hole surveys) trenches mine workings and other locations used in Mineral Resource estimation
a Specification of the grid system used
a Quality and adequacy of topographic control
a Historical drill collars have been relocated and surveyed using a differential GPS (DGPS) In the instances where no collar could be located the position has been derived from georeferenced historical plans
a During systematic data validation completed in 2016 three drill holes at Big Hill were found to be incorrectly located One collar was located and surveyed by GPS and two were digitised from georeferenced historical plans (reported to the nearest metre) as the collars had been destroyed These corrections were captured in the Big Hill Mineral Resource estimate
a Down hole surveys using digital cameras were completed on all post 2000 drilling Down hole surveys for some earlier drilling were estimated from hole trace and section data where raw survey data was not reported
a All 2017 Thackaringa drill hole collars were located and surveyed with DGPS by an independent surveyor with reported accuracy of plusmn005m in horizontal and vertical measurement
a Downhole surveys using digital cameras were completed on all 2017 drill-holes
a All data is recorded in the GDA94 datum UTM Zone 54 (MGA54)
a 3D validation of drilling data has been completed by independent geological consultants to support detailed geological modelling in Microminetrade software
a The quality of topographic control is deemed adequate in consideration of the results presented in this release
Data spacing and distribution
a Data spacing for reporting of Exploration Results
a Whether the data spacing and distribution is sufficient to estab-lish the degree of geological and grade continuity appropriate for the Mineral Resource and Ore Reserve estimation procedure(s) and classifications applied
a Whether sample compositing has been applied
a The data density of existing drill holes at Thackaringa has been materially increased by the 2017 drilling program which was undertaken primarily to undertake infill drilling
a Detailed geological mapping supported by drill-hole data of sufficient spacing and distribution to establish a 3D geological model
a The level of geological and grade continuity is appropriate for the Mineral Resource estimation methodologies used and the classifications applied (being wholly Inferred Mineral Resources) Note that a recalculation of the Mineral Resource using 2017 drilling and assay data will commence in mid-2017
a No sample compositing has been applied to reported intersections
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 21
Criteria JORC Code Explanation Commentary
Orientation of data in relation to geological structure
a Whether the orientation of sampling achieves unbiased sampling of possible structures and the extent to which this is known considering the deposit type
a If the relationship between the drilling orientation and the orientation of key mineralised structures is considered to have introduced a sampling bias this should be assessed and reported if material
a The 2017 drill holes at the Thackaringa project were typically angled at -500 or -600 to the horizontal and drilled perpendicular to the mineralised trend with drilling orientations adjusted along strike to accommodate folded geological sequences
a Mineralisation at the Big Hill and Railway prospects is steeply dipping and consequently mineralised intersections will be greater than true width At Pyrite Hill mineralisation is gently dipping and mineralised intersections will be close to true width
a The drilling orientation is not considered to have introduced a sampling bias on assessment of the current geological interpretation
Sample security
a The measures taken to ensure sample security
a Sample security procedures are considered to be lsquoindustry standardrsquo for the respective periods
a Following recent drilling completed by BPL samples were trucked by an independent courier directly from Broken Hill to ALS Adelaide
a BPL consider that risks associated with sample security are limited given the nature of the targeted mineralisation
Audits or reviews
a The results of any audits or reviews of sampling techniques and data
a In late 2016 an independent validation of the Thackaringa drilling database was completed
a The data validation process consisted of systematic review of drilling data (collars assays and surveys) for identification of transcription errors
a Following review historical drill hole locations were also validated against georeferenced historical maps to confirm their location
a Three (3) drill holes at Big Hill were found to be incorrectly located One collar was located and surveyed by GPS and two were digitised from georeferenced historical plans (reported to the nearest metre) as the collars had been destroyed These corrections were captured in the Big Hill Mineral Resource estimate
a Total depths for all holes were checked against original reports
a Final 3D validation of drilling data has been completed by independent geological consultants to support detailed geological modelling in Microminetrade software
a Audits and reviews of QAQC results and procedures are further described in preceding sections of this table including Quality of assay data and laboratory tests Sub-sampling techniques and sample preparation and Logging
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 22
Section 2 Reporting of Exploration Results(Criteria listed in the preceding section also apply to this section)
Criteria JORC Code Explanation Commentary
Mineral tenement and land tenure status
a Type reference namenumber location and ownership including agreements or material issues with third parties such as joint ventures partnerships overriding royalties native title interests historical sites wilderness or national park and environmental settings
a The security of the tenure held at the time of reporting along with any known impediments to obtaining a licence to operate in the area
a The Thackaringa Cobalt project is located approximately 25 kilometres west-southwest of Broken Hill and comprises four tenements with a total area of 63 km2
Tenement
Registered amp Beneficial Holder Minerals Grant Date Expiry Date
Annual Expenditure
Commit-ment
EL6622 Broken Hill Prospecting Limited (BPL)
Group 1 30082006 29082017 $47000
EL 8143 BPL Group 1 26072013 26072017 $14000
ML86 BPL Cobalt iron nickel platinum sulphur
05111975 04112017 $75000
ML87 BPL Cobalt iron nickel platinum sulphur
05111975 04112017 $75000
a The project tenure is subject to a Farm-In agreement between Cobalt Blue Holdings Limited (COB) and Broken Hill Prospecting Limited (BPL) The nature of this agreement is detailed in the COB Replacement Prospectus (as released 4 January 2017)
a The nearest residence (Thackaringa Station) is located approxi-mately three kilometres west of EL6622
a EL6622 is intersected by the Transcontinental Railway the Barrier Highway is located the north of the licence boundaries
a The majority of the project tenure is covered by Western Lands Lease which is considered to extinguish native title interest However Native Title Determination NC9732 (Barkandji Traditional Owners 8) is current over the area and may be relevant to Crown Land parcels (eg public roads) within the project area
a The project tenure is more than 90 kilometres from the nearest National Park and or Wilderness Area (Kinchega National Park) and approximately 20 kilometres south of the nearest Water Supply Reserve (Umberumberka Reservoir Water Supply Reserve)
a The Company is not aware of any impediments to obtaining a licence to operate in the area
Exploration done by other parties
a Acknowledgment and appraisal of exploration by other parties
a A detailed and complete record of all exploration activities undertaken prior to the BPL 2016 drilling program is appended to the JORC Table 1 which forms part of the Cobalt Blue Prospectus Document available on the COB website
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 23
Criteria JORC Code Explanation Commentary
Geology a Deposit type geological setting and style of mineralisation
Regional Geological Setting a The Thackaringa project is located in a deformed and metamor-
phosed Proterozoic supracrustal succession named the Willyama Supergroup which crops out as several inliers in western New South Wales including the Broken Hill Block (Willis et al 1982)
a Exploration by BPL Limited has been focused on the discovery of cobaltiferous pyrite deposits and Broken Hill type base-metal mineralisation both of which are known from historical exploration in the district
a The project area covers portions of the Broken Hill and Thackaringa group successions which host the majority of mineralisation in the region including the Broken Hill base-metal deposit The Sundown Group suite is also present The extensive sequence of quartz-albite-plagioclase rock that hosts the cobaltiferous pyrite mineralisation is interpreted as belonging to the Himalaya Formation which is stratigraphically at the top of the Thackaringa Group
Local Geological Setting a The oldest rocks in the region belong to the Curnamona Craton
which outcrops on the Broken Hill and Euriowie blocks a The overlying Proterozoic rocks have been broadly subdivided
into three major groupings of which the oldest groups are the highly deformed metasediments and igneous derived rocks of the Thackaringa and Broken Hill groups They comprise a major part of the Willyama Supergroup and host the giant Broken Hill massive Pb-Zn-Ag sulphide ore body EL6622 is within the Broken Hill block of the Curnamona Craton
Mineralisation Style a The Thackaringa Mineral deposits (Pyrite Hill Big Hill and Railway)
are characterised by large tonnage cobaltiferous-pyrite minerali-sation hosted within siliceous albitic gneisses and schists of the Himalaya Formation
a Cobalt mineralisation exists within stratabound pyritic horizons where cobalt is present within the pyrite lattice Mineralogical studies have indicated the majority of cobalt (~85) is found in solid solution with primary pyrite (Henley 1998)
a A strong correlation between pyrite content and cobalt grade is observed
a The regional geological setting indicates additional mineralisation targets including
a Stratiform Broken Hill Type (BHT) Copper-Lead-Zinc-Silver deposits
a Copper-rich BHT deposits a Stratiform to stratabound Copper-Cobalt-Gold deposits a Epigenetic Gold and Base metal deposits
Drill hole Information
a A summary of all information mat- erial to the understanding of the exploration results including a tab- ulation of the following information for all Material drill holes
a easting and northing of the drill hole collar
a elevation or RL (Reduced Level ndash elevation above sea level in metres) of the drill hole collar
a dip and azimuth of the hole
a down hole length and interception depth
a See drill holle summaries below
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 24
Drill hole summaries
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
17THD01 Pyrite Hill 1242 MGA54 518382 6449551 28906 -40 222 DDH1
17THD02 Pyrite Hill 1497 MGA54 518475 6449445 29054 -40 258 DDH1
17THD03 Pyrite Hill 785 MGA54 518370 6449190 30328 -40 2851 DDH1
17THD04 Big Hill 1198 MGA54 521078 6449589 27841 -45 1551 DDH1
17THD05 Big Hill 995 MGA54 521669 6449889 2785 -40 131 DDH1
17THD06 Railway 1655 MGA54 521970 6450705 2872 -45 128 DDH1
17THD07 Railway 2746 MGA54 522569 6451282 27067 -45 1565 DDH1
17THD08 Railway 1325 MGA54 522784 6451280 268881 -45 326 DDH1
17THD09 Railway 1205 MGA54 522905 6451511 278471 -40 1525 DDH1
17THD10 Railway 842 MGA54 522992 6451569 279779 -45 130 DDH1
17THD11 Railway 1115 MGA54 523109 6451682 280847 -40 1605 DDH1
17THD12 Railway 1265 MGA54 522796 6451419 272936 -40 14075 DDH1
17THD13 Railway 1055 MGA54 522836 6451456 276747 -40 1385 DDH1
17THD14 Pyrite Hill 99 MGA54 518375 6449089 29425 -60 285 DDH1
17THR001 Railway 156 MGA54 522615 6451277 267561 -60 120 RC5
17THR002 Railway 160 MGA54 522573 6451299 268511 -60 120 RC5
17THR003 Railway 96 MGA54 522124 6450868 27739 -60 130 RC5
17THR004 Railway 150 MGA54 522387 6451319 271453 -60 120 RC5
17THR005 Railway 72 MGA54 522024 6450783 282154 -60 120 RC5
17THR006 Railway 114 MGA54 522049 6450780 28401 -58 125 RC5
17THR007 Railway 180 MGA54 521965 6450699 286585 -59 125 RC5
17THR008 Railway 132 MGA54 521917 6450562 291682 -56 105 RC5
17THR009 Railway 120 MGA54 521906 6450496 292751 -58 105 RC5
17THR010 Railway 72 MGA54 521959 6450398 286445 -56 285 RC5
17THR011 Railway 126 MGA54 522302 6451169 276812 -56 120 RC5
17THR012 Railway 180 MGA54 522440 6451304 274931 -58 173 RC5
17THR013 Big Hill 102 MGA54 521750 6449942 28489 -60 1305 RC5
17THR014 Big Hill 104 MGA54 521628 6449796 277545 -53 130 RC5
17THR015 Big Hill 108 MGA54 521793 6449918 284847 -58 310 RC5
17THR016 Pyrite Hill 138 MGA54 518446 6449209 290391 -57 283 RC5
17THR017 Pyrite Hill 120 MGA54 518449 6449263 293147 -56 2815 RC5
17THR018 Pyrite Hill 78 MGA54 518027 6449806 289567 -60 222 RC5
17THR019 Pyrite Hill 72 MGA54 518105 6449754 287701 -55 222 RC5
17THR020 Pyrite Hill 66 MGA54 518166 6449695 288685 -60 222 RC5
17THR021 Pyrite Hill 78 MGA54 518183 6449717 286007 -60 222 RC5
17THR022 Pyrite Hill 156 MGA54 518510 6449306 28682 -55 281 RC5
17THR023 Pyrite Hill 150 MGA54 518506 6449377 289481 -57 2645 RC5
17THR024 Pyrite Hill 150 MGA54 518457 6449498 288137 -595 2285 RC5
17THR025 Pyrite Hill 114 MGA54 518311 6449609 287463 -60 222 RC5
17THR026 Pyrite Hill 114 MGA54 518268 6449681 284164 -60 222 RC5
17THR027 Pyrite Hill 72 MGA54 518243 6449646 287176 -60 222 RC5
17THR028 Railway 150 MGA54 522457 6451167 300659 -60 350 RC5
17THR029 Railway 162 MGA54 522482 6451084 295964 -60 175 RC5
17THR030 Railway 138 MGA54 522783 6451423 270814 -55 140 RC5
17THR031 Railway 120 MGA54 522945 6451566 27619 -55 145 RC5
17THR032 Railway 132 MGA54 522819 6451473 273712 -53 140 RC5
17THR033 Railway 120 MGA54 522501 6451315 26963 -60 175 RC5
17THR034 Railway 132 MGA54 522321 6451214 275947 -55 127 RC5
17THR035 Railway 156 MGA54 522259 6451120 275749 -552 130 RC5
17THR036 Railway 92 MGA54 522186 6450998 275339 -612 130 RC5
17THR037 Railway 126 MGA54 522148 6450941 274202 -55 126 RC5
17THR038 Railway 168 MGA54 521927 6450619 289555 -55 108 RC5
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 25
Historic down-hole information
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
67TH01 Pyrite Hill 3042 MGA94_54 518564805 644946003 280643 -55 2606 DDH1
70TH02 Pyrite Hill 1486 MGA94_54 51827242 644968054 28408 -61 2186 DDH1
70TH03 Pyrite Hill 1414 MGA94_54 51844985 644921188 28981 -62 2836 DDH1
70BH01 Big Hill 1027 MGA94_54 52085056 64493085 28456 -47 3186 DDH1
70BH02 Big Hill 1039 MGA94_54 52078612 64492644 2801 -50 3186 DDH1
80PYH13 Pyrite Hill 77 MGA94_54 5183582 64490377 29035 -50 2807 DDH1
80PYH14 Pyrite Hill 3003 MGA94_54 51866118 644928762 27796 -60 2807 DDH1
80PYH03 Pyrite Hill 35 MGA94_54 5182515 64495699 2994 -60 2207 PDDH2 2280BGH09 Big Hill 1005 MGA94_54 52065743 644929252 27280 -50 1447 DDH1
80PYH01 Pyrite Hill 2453 MGA94_54 5182462 64495657 3011 -60 2027 PDDH2 680PYH02 Pyrite Hill 513 MGA94_54 5182607 64495742 2976 -60 2207 PDDH2 335880PYH04 Pyrite Hill 55 MGA94_54 51836655 644923174 30834 -60 2957 PDDH2 38780PYH05 Pyrite Hill 936 MGA94_54 51822697 644967819 28518 -49 2227 PDDH2 1880PYH06 Pyrite Hill 855 MGA94_54 51816348 64497573 28373 -544 2227 PDDH2 1880PYH07 Pyrite Hill 945 MGA94_54 51808406 644981836 28516 -55 2227 PDDH2 1280PYH08 Pyrite Hill 110 MGA94_54 51800954 644988543 28614 -60 2227 PDDH2 880PYH09 Pyrite Hill 1005 MGA94_54 5179174 644993176 28655 -485 2227 PDDH2 880PYH10 Pyrite Hill 1453 MGA94_54 51839296 644956596 28553 -50 2227 PDDH2 25580PYH11 Pyrite Hill 1031 MGA94_54 51844096 644932952 29725 -50 2807 PDDH2 1880PYH12 Pyrite Hill 1095 MGA94_54 51840728 644913731 29263 -50 2807 PDDH2 4280BGH05 Big Hill 5486 MGA94_54 52095535 644953441 28893 -60 1637 RCDDH3 45598TC01 Railway 100 MGA94_54 52275006 645133973 26727 -60 1589 RC5
98TC02 Railway 100 MGA94_54 52239241 645138683 26678 -60 1409 RC5
98TC03 Big Hill 84 MGA94_54 52081645 644936939 31305 -60 1359 RC5
98TC04 Big Hill 13825 MGA94_54 52086005 644945085 30409 -60 1409 RC5
98TC05 Big Hill 70 MGA94_54 520728 644932807 28863 -50 1229 RC5
98TC06 Big Hill 108 MGA94_54 520715 6449343 28513 -60 1259 RC5
98TC07 Big Hill 120 MGA94_54 52078597 644938821 29922 -50 1339 RC5
98TC08 Big Hill 90 MGA94_54 52080195 644947781 29101 -60 1509 RC5
98TC09 Big Hill 114 MGA94_54 52082221 644946079 29625 -60 1339 RC5
98TC10 Big Hill 134 MGA94_54 521018 6449576 2815 -50 1729 RC5
98TC11 Railway 35 MGA94_54 5224112 645137396 26701 -60 1329 RC5
80BGH06 Big Hill 6804 MGA94_54 520880 6449472 299 -60 1707 RCDDH3 5880BGH08 Big Hill 797 MGA94_54 52076879 644939093 29629 -60 1267 RCDDH3 69980BGH07 Big Hill 23 MGA94_54 52113656 6449599 27411 -60 1777 RC5
93MGM01 Pyrite Hill 70 MGA94_54 51818544 644971377 28628 -60 2228 RDDH4 2493MGM02 Pyrite Hill 180 MGA94_54 51851545 644945467 28479 -60 2588 RDDH4 4811PHR01 Pyrite Hill 150 MGA94_54 51843547 644907276 28534 -60 27906 RC5
11PHR02 Pyrite Hill 198 MGA94_54 51849992 644915931 28379 -60 27906 RC5
11PHR03 Pyrite Hill 240 MGA94_54 5185603 644918961 28026 -60 27906 RC5
11PHR04 Pyrite Hill 186 MGA94_54 51852863 6449257 28403 -60 27906 RC5
11PHR05 Pyrite Hill 234 MGA94_54 51858425 644939762 28022 -60 25906 RC5
11PHR06 Pyrite Hill 180 MGA94_54 5184909 644952259 28402 -60 23406 RC5
11PHR07 Pyrite Hill 174 MGA94_54 51841347 64495929 28286 -60 21906 RC5
11PHR08 Pyrite Hill 180 MGA94_54 51834274 644965585 28288 -60 21806 RC5
11PSR01 Pyrite Hill 59 MGA94_54 51874273 6448864 26838 -60 25806 RC5
11PSR02 Pyrite Hill 132 MGA94_54 51871938 644896001 27041 -60 25506 RC5
11PSR03 Pyrite Hill 78 MGA94_54 51868699 644905535 27279 -60 25506 RC5
12BER01 Railway 157 MGA94_54 52166731 644989323 27769 -60 141 RC5
12BER02 Railway 132 MGA94_54 52121267 644969067 27353 -60 162 RC5
12BER03 Railway 151 MGA94_54 52187901 645043547 28859 -60 102 RC5
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 26
Historic down-hole information (continued)
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
12BER04 Railway 148 MGA94_54 52235392 645126835 27435 -60 131 RC5
12BER05 Railway 145 MGA94_54 52243947 645116784 29973 -60 124 RC5
12BER06 Railway 169 MGA94_54 52248137 645109135 29595 -60 118 RC5
12BER07 Railway 115 MGA94_54 52232372 645074875 27791 -60 144 RC5
12BER08 Railway 193 MGA94_54 52222079 64508118 27316 -60 129 RC5
12BER09 Railway 13975 MGA94_54 52210125 645088144 27591 -60 129 RC5
12BER10 Railway 151 MGA94_54 52195345 645071618 28449 -60 129 RC5
12BER11 Railway 193 MGA94_54 52273722 645137661 26583 -60 153 RC5
12BER12 Railway 111 MGA94_54 52290973 645151676 27736 -60 153 RC5
12BER13 Railway 205 MGA94_54 52288381 645155754 27103 -60 156 RC5
12BER14 Railway 151 MGA94_54 52312483 645163707 28836 -60 152 RC5
12BER15 Railway 109 MGA94_54 5233113 64518417 28395 -60 154 RC5
12BER16 Railway 115 MGA94_54 52299408 645159199 27595 -60 156 RC5
12BER17 Railway 1155 MGA94_54 5225165 645131494 2691 -60 153 RC5
12BER18 Railway 157 MGA94_54 52233275 645128131 27229 -60 129 RC5
12BER19 Railway 97 MGA94_54 52224055 645106715 27616 -60 135 RC5
12BER20 Railway 120 MGA94_54 52129169 644973363 27695 -60 165 RC5
13BED01 Railway 3492 MGA94_54 52248021 645109243 29601 -60 3007 DDH1
16DM01 Pyrite Hill 1616 MGA94_54 51841138 644959389 28269 -60 2155 DDH1
16DM02 Pyrite Hill 1834 MGA94_54 51852662 644926158 28418 -60 2850 DDH1
16DM03 Big Hill 1265 MGA94_54 5210371 644956749 28301 -60 1585 DDH1
16DM04 Big Hill 1054 MGA94_54 52081474 64494644 29618 -55 1285 DDH1
16DM05 Railway 2465 MGA94_54 5221037 645088187 27662 -60 1285 DDH1
16DM06 Railway 1604 MGA94_54 52291157 645151913 2785 -60 1525 DDH1
16DM07 Railway 2425 MGA94_54 52299526 645159826 27636 -60 1561 DDH1
16DM08 Railway 2585 MGA94_54 52235145 645127307 27385 -60 1309 DDH1
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 27
Down hole length and interception depth ndash 2017 holes
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THD01 34 123 89 982 94 87
including 35 41 6 1143 119 106
and 50 55 5 1311 131 115
and 81 122 41 1366 118 11
17THD02 47 134 87 911 88 92
including 48 77 29 1238 111 114
and 116 134 18 1199 110 111
17THD03 40 635 235 894 116 108
including 49 63 14 1076 143 124
17THD04 20 29 9 1033 86 872 96 24 703 88 81
17THD05 44 60 16 993 98 85
including 44 56 12 1094 109 94
71 76 5 840 64 6317THD06 39 85 46 1136 114 101
including 40 70 30 1227 122 104
and 76 85 9 1148 107 100
17THD07 15 128 113 879 81 88
including 47 55 8 1048 117 103
and 61 102 41 1452 125 123
142 152 10 704 6 102199 204 5 706 49 65
17THR001 27 63 36 1075 106 104
including 37 63 26 1280 119 115
75 84 9 755 91 139
17THR002 37 43 6 711 69 82
91 136 45 983 98 105
including 102 136 34 1190 117 118
17THR003 4 59 55 937 93 94
including 10 46 36 1212 116 110
17THR004 49 146 97 888 102 102
including 51 113 62 1051 114 113
17THR005 52 72 20 1053 128 126
including 53 63 10 1145 125 130
17THR006 14 74 60 754 86 87
including 17 44 27 1176 125 121
17THR007 5 22 17 837 0 125
including 12 19 7 1049 0 105
128 154 26 1034 114 115
including 128 146 18 1321 144 143
17THR008 37 78 41 1319 122 11217THR009 29 65 36 957 94 92including 34 60 26 1150 111 102
100 105 5 833 129 12717THR010 51 57 6 729 49 5317THR011 30 83 53 1116 12 109
including 31 62 31 1423 155 135
17THR012 50 117 67 748 75 86
including 59 67 8 1084 103 126
and 75 102 27 1120 110 113
172 177 5 725 64 64
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 28
Down hole length and interception depth ndash 2017 holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THR013 19 73 54 888 54 5
including 19 29 10 2576 88 77
17THR014 12 45 33 749 81 74
including 25 33 8 1148 113 94
17THR015 40 48 8 995 89 8117THR016 66 115 49 1096 129 134
including 66 81 15 1184 142 139
and 89 114 25 1183 134 141
17THR017 54 112 58 1383 132 128
including 56 85 29 2042 183 158
17THR018 47 63 16 1124 151 14117THR019 42 59 17 1032 107 114
17THR020 29 49 20 1067 116 115
including 29 36 7 1352 135 126
17THR021 44 64 20 1204 131 12717THR022 101 138 37 1152 107 1217THR023 91 137 46 1271 139 133
including 91 97 6 1953 187 166
and 114 125 11 2707 311 265
17THR027 29 54 25 1176 126 118
including 30 47 17 1382 141 125
Down hole length and interception depth ndash historic holes
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
11PHR02 74 114 40 875 108 116
11PHR03 150 162 12 750 83 96
11PHR03 163 190 27 732 106 119
11PHR03 206 227 21 988 117 13
11PHR04 124 172 48 1049 128 129
11PHR05 197 219 22 1138 107 133
11PHR06 104 135 31 854 83 115
11PHR06 155 171 16 1315 12 122
11PHR07 96 147 51 941 95 99
11PHR08 103 115 12 1417 139 148
11PHR08 126 144 18 1048 126 142
12BER01 115 139 24 768 72 74
12BER02 18 25 7 1062 103 93
12BER02 113 123 10 907 85 86
12BER04 41 90 49 1191 114 127
12BER04 121 126 5 1241 9 112
12BER05 33 39 6 1109 79 92
12BER05 65 76 11 721 63 66
12BER06 131 169 38 844 83 128
12BER07 38 43 5 704 10 101
12BER09 33 92 59 841 9 116
12BER11 31 62 31 738 84 126
12BER11 92 159 67 1061 10 131
12BER11 173 193 20 737 67 83
12BER12 27 81 54 1430 181 189
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 29
Down hole length and interception depth ndash historic holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
12BER13 21 42 21 761 74 91
12BER13 65 75 10 1882 204 216
12BER14 28 55 27 1013 125 129
12BER16 25 100 75 1008 106 107
12BER17 92 99 7 739 6 63
12BER18 117 157 40 1017 112 114
12BER19 34 56 22 1151 104 108
12BER19 68 75 7 780 61 6
12BER20 21 46 25 731 69 75
13BED01 266 2915 255 872 85 78
16DM01 96 147 51 851 91 86
16DM02 127 172 45 1118 138 136
16DM03 104 111 7 838 103 9
16DM04 91 99 8 887 91 84
16DM05 30 103 73 793 82 9
16DM05 199 211 12 830 251 221
16DM06 28 84 56 1280 162 167
16DM06 138 146 8 722 78 112
16DM07 35 60 25 1232 111 111
16DM07 71 104 33 1224 133 134
16DM08 76 100 24 1026 11 12
16DM08 165 177 12 921 122 126
17THD01 34 123 89 982 94 87
17THD02 47 134 87 911 88 92
17THD03 40 635 235 894 116 108
17THD04 20 29 9 1033 86 8
17THD04 72 96 24 703 88 81
17THD05 44 60 16 993 98 85
17THD05 71 76 5 840 64 63
17THD06 39 85 46 1136 114 101
17THD07 15 128 113 879 81 88
17THD07 142 152 10 704 6 102
17THD07 199 204 5 706 49 65
17THR001 27 63 36 1075 106 104
17THR001 75 84 9 755 91 139
17THR002 37 43 6 711 69 82
17THR002 91 136 45 983 98 105
17THR003 4 59 55 937 93 94
17THR004 49 146 97 888 102 102
17THR005 52 72 20 1053 128 126
17THR006 14 74 60 754 86 87
17THR007 5 22 17 837 0 125
17THR007 128 154 26 1034 114 115
17THR008 37 78 41 1319 122 112
17THR009 29 65 36 957 94 92
17THR009 100 105 5 833 129 127
17THR010 51 57 6 729 49 53
17THR011 30 83 53 1116 12 109
17THR012 50 117 67 748 75 86
17THR012 172 177 5 725 64 64
17THR013 19 73 54 888 54 5
17THR014 12 45 33 749 81 74
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 30
Down hole length and interception depth ndash historic holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THR015 40 48 8 995 89 81
17THR016 66 115 49 1096 129 134
17THR017 54 112 58 1383 132 128
17THR018 47 63 16 1124 151 141
17THR019 42 59 17 1032 32 114
17THR020 29 49 20 1067 116 115
17THR021 44 64 20 1204 131 127
17THR022 101 138 37 1152 107 12
17THR023 91 137 46 1271 139 133
17THR027 29 54 25 1176 126 118
67TH01 12344 20001 7657 979 0 0
70BH01 3962 5334 1372 3323 31 0
70BH01 6431 8443 2012 1203 95 0
70BH02 7406 8686 128 704 75 0
70TH02 78 841 61 1666 175 154
70TH02 871 1021 15 1661 8 72
70TH03 777 1295 518 1016 129 132
80BGH05 39 49 10 752 0 0
80BGH06 18 6804 5004 969 0 0
80BGH08 44 7815 3415 939 0 0
80PYH01 75 17 95 725 0 0
80PYH02 341 4825 1415 1121 0 0
80PYH03 23 35 12 711 0 0
80PYH04 3975 55 1525 735 0 0
80PYH05 367 65 283 1160 118 0
80PYH06 54 62 8 905 0 0
80PYH07 67 794 124 1113 125 0
80PYH10 4845 1374 8895 831 86 0
80PYH11 346 465 119 916 8 0
80PYH11 572 9105 3385 1239 106 0
80PYH12 302 365 63 791 102 0
80PYH12 8515 908 565 857 146 0
80PYH14 2518 2734 216 1252 131 0
93MGM02 85 160 75 941 85 0
98TC01 20 47 27 744 91 126
98TC01 48 71 23 917 119 164
98TC03 34 45 11 1480 55 6
98TC03 68 79 11 1095 43 42
98TC04 84 94 10 966 39 4
98TC04 107 133 26 771 77 82
98TC05 24 62 38 754 64 7
98TC06 66 72 6 727 104 111
98TC06 76 101 25 767 101 106
98TC07 35 46 11 1546 165 171
98TC07 61 82 21 728 91 94
98TC09 32 39 7 716 49 174
98TC09 82 107 25 732 6 67
98TC10 101 125 24 732 79 8
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 31
Criteria JORC Code Explanation Commentary
Data aggregation methods
a In reporting Exploration Results weighting averaging techniques maximum andor minimum grade truncations (eg cutting of high grades) and cut-off grades are usually Material and should be stated
a Where aggregate intercepts incorporate short lengths of high grade results and longer lengths of low grade results the procedure used for such aggregation should be stated and some typical examples of such aggregations should be shown in detail
a The assumptions used for any reporting of metal equivalent values should be clearly stated
Drilling a Drill hole intercept grades are typically reported as down-hole
length-weighted averages with any non-recovered sample within the reported intervals treated as no grade The cut-off used for selecting significant intersections is selected to reflect the overall tenor of mineralisation in most cases 500ppm cobalt
a No top cuts have been applied when calculating average grades for reported significant intersections
a No metal equivalent values are reported
Relationship between mineralis- ation widths and intercept lengths
a These relationships are particularly important in the reporting of Exploration Results
a If the geometry of the mineralisation with respect to the drillhole angle is known its nature should be reported
a If it is not known and only the down hole lengths are reported there should be a clear statement to this effect (eg lsquodown hole length true width not knownrsquo)
a Drill holes at the Thackaringa project are typically angled at 50deg or 60deg and drilled perpendicular to the mineralised trend with drilling orientations adjusted along strike to accommodate folded geological sequences
a Mineralisation at the Big Hill and Railway prospects is steeply dipping and consequently mineralised intersections will be greater than true width At Pyrite Hill mineralisation is gently dipping and mineralised intersections will be close to true width
a There is insufficient geological knowledge to accurately estimate true widths and as such all drill intersections are reported as down hole lengths
Diagrams a Appropriate maps and sections (with scales) and tabulations of intercepts should be included for any significant discovery being reported These should include but not be limited to a plan view of drill hole collar locations and appropriate sectional views
a Appropriate maps and sections are presented in the accompa-nying ASX release
Balanced reporting
a Where comprehensive reporting of all exploration results is not practicable representative reporting of both low and high grades andor widths should be practiced to avoid misleading reporting of Exploration Results
a Only mineralised drill hole intersections regarded as highly anomalous and of economic interest are reported The proportion of each hole represented by the reported intervals can be ascertained from the sum of the reported intervals divided by the total drill hole depth
a All assay results for drill holes included in the various Mineral Resource estimates have been considered and comprise results not necessarily regarded as anomalous
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 32
Criteria JORC Code Explanation Commentary
Other substantive exploration data
a Other exploration data if meaningful and material should be reported including (but not limited to) geological obser-vations geophysical survey results geochemical survey results bulk samples ndash size and method of treatment metallurgical test results bulk density groun d- water geotechnical and rock characteristics potential deleterious or contaminating substances
a No further exploration data is deemed material to the results presented in this release
Further work a The nature and scale of planned further work (eg tests for lateral extensions or depth extensions or large-scale step-out drilling)
a Diagrams clearly highlighting the areas of possible extensions including the main geological interpretations and future drilling areas provided this information is not commercially sensitive
a The nature and scale of planned further work will be determined following the completion of revised Mineral Resource estimation for the Thackaringa deposits scheduled for May 2017
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 2
Cobalt Blue Holdings Limited is delighted to announce the completion of its 1H 2017 resource definition drilling program at the Thackaringa cobalt project west of Broken Hill NSW Completion of this campaign is a major milestone The current assay will be used as the basis for a new and updated resource estimation process commencing in May
This announcement summarises the assays from a total of thirty one (31) drill holes completed for a total of 3812 metres Break-down of drilling by deposit
Reverse Circulation Drilling Diamond Drilling
Deposit No Drill holes Metres No Drill holes Metres
Pyrite Hill 9 930 3 352
Big Hill 3 314 2 219
Railway 12 1557 2 440
Total 24 2801 7 1011
Drilling to date has focussed on the higher priority Railway and Pyrite Hill areas which together contribute 95 of the existing Inferred Mineral Resource inventory of 331Mt at 833ppm Co (reference COB Replacement Prospectus released 31 January 2017)
Figure 1 Cobalt Blue tenements location and currentproposed infrastructureFor
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 3
Following the Companyrsquos stated accelerated exploration strategy the 1H 2017 drilling program was completed by three drill rigs (one diamond and two reverse circulation) Inclined drill holes (between 40deg and 60deg) were designed to intersect the steeply dipping deposits at an optimal orientation Drill results continue to confirm the predictive geological model
The Thackaringa deposits have a combined strike length of over 45 kilometres varying from 25 to 100 metres width Significant local thickening of the mineralised envelope is due to the extensive development of isoclinal folding within the host lithology unit Initial interpretation of 2017 data suggests that this deformation may locally enhance cobalt and pyrite grade This new structural information provides a further opportunity to define high grade lenses within the broader mineralised envelope At Railway zones of high grade cobalt mineralisation were intersected in the hanging wall of the deposit and demonstrate strong continuity
Drilling undertaken to date has focussed on the shallow mineralisation ndash to approximately 150 metres below surface with confirmed mineralisation to greater depths Mineralisation at all three of the deposits remains open down-dip In addition to potential depth extension discrete pods of mineralisation mapped within the footwall at Railway deposit were intersected by drilling and offer additional footwall exploration potential The JV technical team is currently finalising geological modelling to further guide the pending revision of the Mineral Resource Estimate This process will begin in May 2017 on delivery of the final batch of assay results Further technical studies are continuing in parallel as the Company remains on schedule to deliver the Scoping Study by mid-2017
Field operations continue with rehabilitation of drill sites and preparations for the forecast commencement of baseline environmental and hydrological monitoring
Cobalt Blue Chairman Robert Biancardi commented
ldquoCOB is delighted with the timely and efficient conclusion to the drilling program Preliminary interpretation of the results supports the Companyrsquos belief that the Thackaringa JV is defining a world class cobalt-pyrite deposit We remain confident that data acquired during the 2016 and 2017 drilling programs will allow a significant enhancement in the estimated Mineral Resource Initial indications also suggest that recent work has enhanced the average grade within the overall mineralised enveloperdquo
Further results will be forthcoming from the final assay samples presently being processed which should be available for market release by the beginning of June The 2017 program comprised a significant RC program designed to improve drilling density in support of a forthcoming update of the Mineral Resource estimation and a Diamond Drilling program which ndash like the 2016 program ndash will provide ROM material for metallurgical testwork
Railway The Railway deposit is an elongated outcrop of mineralisation within a high-grade metamorphic host rock The pyrite-quartz-albite gneiss mineralised lithology has a total strike length of some 3000 metres continuing in a south-west arc to the Big Hill deposit which is offset by faulting (Figure 2)
Drilling at Railway comprised eight DD holes for a total of 1126m and 23 RC holes for a total 3053m The program was designed to close the spacing between holes to allow a re estimation of the existing Mineral Resource
The latest drilling assays confirm previous exploration results of high-grade cobalt and pyrite mineralisation Assays from Railway confirm broad continuous zones of cobalt and pyrite mineralisation significantly higher than the average resource grade (Figure 3)
Railway Results
Assays at Railway Trend confirm high grade intersections of mineralisation within a wide and continuous envelope Best mineralised intercepts include
a Drillhole 17THD06 ndash 46m 1136ppm Co 114 S and 101 Fe from 39m drill depth
a Drillhole 17THR001 ndash 36m 1075ppm Co 106 S and 104 Fe from 27m drill depth
a Drillhole 17THR005 ndash 20m 1053 ppm Co 128 S and 126 Fe from 52m drill depth
a Drillhole 17THR008 ndash 41m 1319ppm Co 122 S and 112 Fe from 37m drill depth
a Drillhole 17THR011 ndash 53m 1116ppm Co 120 S and 109 Fe from 30m drill depth
These results confirm the previous tenor and elevated grade of cobalt-pyrite mineralisation along the defined strike length Mineralisation at Railway remains open along strike and down-dip boosting the potential for an open pittable resource
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 4
Figure 2 Plan view of Railway Deposit For
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 5
Figure 3 Railway X-section along plane of 17THD07 For
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 6
Pyrite HillThe Pyrite Hill deposit is hosted within an extensively metamorphosed pyrite-albite-quartz gneiss The deposit has a strike length of 1200m and dips moderately to the east (Figure 5)
The drilling at Pyrite Hill comprised four DD holes for a total of 451m and 12 RC holes for a total 1308m The RC program was designed to close the spacing between existing holes to allow recalculation of the Mineral Resource the DD program comprised holes to twin existing RC holes and to provide material for metallurgical testwork
Pyrite Hill results
At Pyrite Hill assays confirm the down-dip mineralisation within the host lithology Best mineralised intercepts include
a Drillhole 17THD01 ndash 89m 982ppm Co 94 S and 87 Fe from 34m drill depth
a Drillhole 17THR016 ndash 49m 1096ppm Co 129 S and 134 Fe from 66m drill depth
a Drillhole 17THR017 ndash 58m 1383ppm Co 132 S and 128 Fe from 54m drill depth and
a Drillhole 17THR021 ndash 20m 1204ppm Co 131 S and 127 Fe from 44m drill depth
Figure 4 Logging ndash Thackaringa Diamond Drilling CoresFor
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 7
Figure 5 Plan view of Pyrite Hill
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 8
Figure 6 Pyrite Hill X-section along plane of 17THR017 For
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 9
Big HillThe Big Hill deposit is an off-set southwestern extension of the high-grade metamorphic host at Railway The drilling at Big Hill comprised two diamond holes for a total of 219m and three RC holes for a total of 314m The RC program was designed to test the mineralisation at sparsely explored north-eastern end of the prospect at an interpreted offset fault zone between Big Hill and Railway The diamond program comprised holes to provide solid core to assist the structural interpretation of this complex hinge structure
Big Hill results
The 2017 drilling at Big Hill has discovered some structural complications at a fault zone nevertheless some of the highest-yet cobalt mineralisation was intersected in this section Best mineralised intercepts include
a Drillhole 17THR013 ndash 54m 888ppm Co 54 S and 50 Fe from 19m drill depth
Figure 7 Field Crew - RC Drill Rig - Railway Deposit
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 10
Figure 8 Plan view of Big HillFor
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 11
Figure 9 Big Hill X-section along plane of 17THR013For
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 12
Cobalt Blue BackgroundCobalt Blue (ldquoCOBrdquo) is an exploration company focussed on green energy technology and strategic development to upgrade the existing mineral resource at the Thackaringa Cobalt Project in New South Wales This strategic metal is in strong demand for new generation batteries particularly lithium-ion batteries now being widely used in clean energy systems
COB has entered into a farm-in joint venture agreement with Broken Hill Prospecting Limited (ldquoBPLrdquo) in which COB acquired an initial 51 interest in the Thackaringa Cobalt Project COB will undertake exploration and development programs at the Thackaring Cobalt Project and subject to the achievement of milestones will acquire 100 of the Thackaringa Cobalt Project
The Thackaringa Project 23 km west of Broken Hill and 400km by rail from Port Pirie consists of four granted tenements (EL6622 EL8143 ML86 and ML87) with total area of 63 km2 The main target for exploration is well known and contains documented large tonnage cobalt bearing pyrite deposits The project area is under-explored with the vast majority of historical exploration directed at or around the outcropping pyritic cobalt deposits at Pyrite Hill and Big Hill
Potential to extend the Mineral Resource at Pyrite Hill Big Hill Railway and the other prospects is high Numerous other prospects within COBrsquos tenement package are early stage and under-explored
Looking forward we would like our shareholders to keep in touch with COB updates and related news items which we will post on our website the ASX announcements platform as well as social media such as Facebook ( ) and LinkedIn ( ) Please donrsquot hesitate to join the lsquoCOB friendsrsquo on social media and also to join our newsletter mailing list at our website
Joe KaderavekChief Executive Officerjoekaderavekcobaltblueholdingscom(02) 9966 5629
Competent Person StatementThe information in this report that relates to exploration results Mineral Resources and Targets is based on information compiled by Mr Anthony Johnston BSc (Hons) who is a Member of the Australian Institute of Mining and Metallurgy and who is a non-executive director of Cobalt Blue Holdings Limited the Chief Executive Officer of Broken Hill Prospecting Limited and the Technical Manager of the Joint Venture Mr Johnston has sufficient experience which is relevant to the style of mineralisation and type of deposits under consideration and to the activity which he is undertaking to qualify as a Competent Person as defined in the 2004 amp 2012 Edition of the ldquoAustralasian Code for Reporting of Exploration Results Mineral Resources and Ore Reservesrdquo Mr Johnston consents to the inclusion in the announcement of the matters based on his information in the form and context that the information appears
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 13
Appendix ndash JORC Code 2012 Edition ndash Table 1 Section 1 ndash Sampling Techniques and Data(Criteria in this section apply to all succeeding sections)
Criteria JORC Code Explanation Commentary
Sampling techniques
a Nature and quality of sampling (eg cut channels random chips or specific specialised industry standard measurement tools appropriate to the minerals under investigation such as down-hole gamma sondes or handheld XRF instruments etc) These examples should not be taken as limiting the broad meaning of sampling
a Include reference to measures taken to ensure sample repre-sentivity and the appropriate calibration of any measurement tools or systems used
a Aspects of the determination of mineralisation that are Material to the Public Report
a In cases where lsquoindustry standardrsquo work has been done this would be relatively simple (eg lsquoreverse circulation drilling was used to obtain 1 m samples from which 3 kg was pulverised to produce a 30 g charge for fire assayrsquo) In other cases more explanation may be required such as where there is coarse gold that has inherent sampling problems Unusual commodities or mineralisation types (eg submarine nodules) may warrant disclosure of detailed information
Diamond Drilling (DD)Pre-1990a Diamond drilling was used to obtain core from which irregular
intervals reflecting visual mineralisation and geological logging were hand-split or sawn Samples were submitted for analysis using a mixed acid digestion and AAS methodology
Post-1990 a Diamond drilling (one drill hole) was used to obtain core from
which irregular intervals reflecting visual mineralisation and geological logging were sawn (quarter core for HQ) Samples were submitted for analysis using a mixed acid digestion and ICP-OES methodology
2016 Metallurgical Drillinga Eight HQ diameter diamond drill holes (DD) were drilled at
the Thackaringa project in late 2016 They will be used as metallurgical reference holes and to twin some of the previous reverse circulation percussion (RC) holes for QAQC and assay comparison between DD and RC There were two holes drilled at Pyrite Hill two at Big Hill and four at Railway
a Diamond drilling was used to obtain core from which regular (one-metre) intervals were sawn with
a one half core dispatched for analysis using a mixed acid digestion and ICP-AES methodology
a the other half was further sawn such that one quarter- core was sent for metallurgical test work and the other quarter-core retained for archival purposes
Historical Reverse Circulation Drilling a RC drilling was used to obtain a representative sample by means
of riffle splitting with samples submitted for analysis using the above-mentioned methodologies
a Pre-2000 drill samples were assayed for a small and variable suite of elements (sometimes only cobalt) The post-2000 drill samples (5095 samples) are all assayed by ICP-MS for a suite of 33 elements
2017 Diamond Drilling Program a This announcement summarises the results from approximately
23 of the 2017 diamond drilling program Fourteen HQ diameter diamond drill holes (DD) were assayed at the Thackaringa project They will be used as metallurgical reference holes and to twin some of the previous reverse circulation percussion (RC) holes for QAQC and assay comparison between DD and RC There were four holes drilled at Pyrite Hill two at Big Hill and 8 at Railway
a Diamond drilling (17THD01-03) was used to obtain core from which regular (one-metre) intervals were sawn with
a one half core dispatched for analysis using a mixed acid digestion and ICP-AES methodology
a the other half was retained for future metallurgical test work and archival purposes
a Diamond drilling (17THD04-14) was used to obtain core from which regular (one-metre) intervals were sawn with
a one quarter core dispatched for analysis using a mixed acid digestion and ICP-AES methodology
a the other three quarters was retained for future metallurgical test work and archival purposes
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 14
Criteria JORC Code Explanation Commentary
Sampling techniques (continued)
2017 RC drilling Program a This announcement summarises the results from approximately
23 of the 2017 RC drilling program Thirty eight (38) RC drill holes were drilled amp assayed at the Thackaringa project They will be used to infill the drill spacing of historic holes to allow a re-estimation of the existing Mineral Resource There were 12 holes drilled at Pyrite Hill three at Big Hill and 23 at Railway
a RC drilling was used to obtain a representative sample by means of riffle splitting with samples submitted for analysis using the above-mentioned methodologies
a The 2017 drill samples are all assayed by ICP-MS for a suite of 33 elements
Drilling techniques
a Drill type (eg core reverse circulation open-hole hammer rotary air blast auger Bangka sonic etc) and details (eg core diameter triple or standard tube depth of diamond tails face-sampling bit or other type whether core is oriented and if so by what method etc)
a The Thackaringa drilling database comprises a total of forty-eight (48) DD holes and eighty-one (81) RC drill holes Diamond drilling was predominantly completed with standard diameter conventional HQ and NQ utilising RC and percussion pre-collars to an average 25 metres (see Drill-hole Information for further details) Early (1960-1970) drill holes utilised HX ndash AX diameters dependent on drilling depth Reverse circulation drilling utilised standard drill-hole diameters (48rdquo-55rdquo) with a face sampling hammer
a During 2013 a single diamond drill hole (13BED01) was completed at the Railway deposit using a triple tube system with a HQ3 diameter
Year Drilling Metres
1967 1 diamond drill hole 3042
1970 4 diamond drill holes 4966
1980 18 diamond and 1 RC drill hole 171123
1993 2 diamond drill holes 250
1998 11 RC drill holes 109325
2011 11 RC drill holes 1811
2012 20 RC drill holes 287425
2013 1 diamond drill hole 3492
2016 8 diamond drill holes 14848
2017 14 diamond drill holes and 38 RC drill holes 6472
Total 48 diamond and 81 RC drill holes 1684653
a This ASX release describes assay results from seven (7) diamond drill holes and twenty-four (24) RC holes completed and assayed by April 2017 Commencement of that drilling program was reported to ASX by the company in April 2017
a Diamond drilling was completed using a triple tube system with a HQ3 diameter
a Holes were drilled at angles between 40 and 60 degrees from horizontal and the resulting core was oriented as part of the logging process
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 15
Criteria JORC Code Explanation Commentary
Drill sample recovery
a Method of recording and assessing core and chip sample recoveries and results assessed
a Measures taken to maximise sample recovery and ensure representative nature of the samples
a Whether a relationship exists between sample recovery and grade and whether sample bias may have occurred due to preferential lossgain of finecoarse material
Diamond Drilling
a Historical core recoveries were accurately quantified through measurement of actual core recovered versus drilled intervals
a Historical diamond drilling employed conventional drilling techniques while diamond drilling completed by Broken Hill Prospecting utilised a triple-tube system to maximise sample recovery
a Core recovery of 997 was achieved during completion of drill hole 13BED01
a Core recovery of 98 was achieved during the 2016 diamond drilling program
a Core recovery of 933 was achieved during the 2017 diamond drilling program
a No relationship between sample recovery and grade has been observed
Reverse Circulation Drilling
a Reverse circulation sample recoveries were visually estimated during drilling programs Where the estimated sample recovery was below 100 this was recorded in field logs by means of qualitative observation
a Reverse circulation drilling employed adequate air (using a compressor and booster) to maximise sample recovery
a No relationship between sample recovery and grade has been observed
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 16
Criteria JORC Code Explanation Commentary
Logging a Whether core and chip samples have been geologically and geotechnically logged to a level of detail to support appropriate Mineral Resource estimation mining studies and metallurgical studies
a Whether logging is qualitative or quantitative in nature Core (or costean channel etc) photography
a The total length and percentage of the relevant intersections logged
a A qualified geoscientist has logged all reported drill holes in their entirety This logging has been completed to a level of detail considered to accurately support Mineral Resource estimation and metallurgical studies The parameters logged include lithology alteration mineralisation and oxidation These parameters are both qualitative and quantitative in nature
a Diamond drilling completed in 2017 by BPL has been subject to geotechnical logging with parameters recorded including rock-quality designation (RQD) fracture frequency and hardness
a During 2013 a considerable amount of historical drilling was re-logged through review of available core stored at Broken Hill as well the re-interpretation of historical reports where core or percussion samples no longer exist A total of eight (8) diamond drill holes and sixteen (16) diamond drill holes with pre-collars were re-logged as detailed below
Hole ID Deposit Max Depth Hole TypePre-Collar Depth (m)
67TH01 Pyrite Hill 3042 DDH1 ndash
70TH02 Pyrite Hill 1486 DDH1 ndash
70TH03 Pyrite Hill 1414 DDH1 ndash
70BH01 Big Hill 1027 DDH1 ndash
70BH02 Big Hill 1039 DDH1 ndash
80PYH13 Pyrite Hill 77 DDH1 ndash
80PYH14 Pyrite Hill 3003 DDH1 ndash
80BGH09 Big Hill 1005 DDH1 ndash
80PYH01 Pyrite Hill 2453 PDDH2 6
80PYH02 Pyrite Hill 513 PDDH2 3358
80PYH04 Pyrite Hill 55 PDDH2 387
80PYH05 Pyrite Hill 936 PDDH2 18
80PYH06 Pyrite Hill 855 PDDH2 18
80PYH07 Pyrite Hill 945 PDDH2 12
80PYH08 Pyrite Hill 110 PDDH2 8
80PYH09 Pyrite Hill 1005 PDDH2 8
80PYH10 Pyrite Hill 1453 PDDH2 255
80PYH11 Pyrite Hill 1031 PDDH2 18
80PYH12 Pyrite Hill 1095 PDDH2 42
80BGH05 Big Hill 5486 RCDDH3 455
80BGH06 Big Hill 6804 RCDDH3 58
80BGH08 Big Hill 797 RCDDH3 699
93MGM01 Pyrite Hill 70 RDDH4 24
93MGM02 Pyrite Hill 180 RDDH4 48
1 Diamond drill hole2 Diamond drill hole with percussion pre-collar3 Diamond drill hole with reverse circulation pre-collar4 Diamond drill hole with rotary air blast pre-collar
a Litho-geochemistry has been used to verify geological logging where available for drilling completed by Broken Hill Prospecting post 2010
a Representative reference trays of chips from reverse circulation drilling completed post 2010 have been retained by Broken Hill Prospecting
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 17
Criteria JORC Code Explanation Commentary
Sub-sampling techniques and sample preparation
a If core whether cut or sawn and whether quarter half or all core taken
a If non-core whether riffled tube sampled rotary split etc and whether sampled wet or dry
a For all sample types the nature quality and appropriateness of the sample preparation technique
a Quality control procedures adopted for all sub-sampling stages to maximise representivity of samples
a Measures taken to ensure that the sampling is representative of the in situ material collected including for instance results for field duplicatesecond-half sampling
a Whether sample sizes are appropriate to the grain size of the material being sampled
Diamond Drilling (DD)Pre-1990a Core samples were hand-split or sawn with re-logging of available
historical core (see Logging) indicating a 7030 (retainedassayed) split was typical The variation of sample ratios noted are consid-ered consistent with the sub-sampling technique (hand-splitting)
a No second half samples were submitted for analysis a It is considered water used for core cutting is unprocessed and
unlikely to have introduced sample contamination a Procedures relating to the definition of the line of cutting or splitting
are not available It is expected that lsquostandard industry practicersquo for the period was applied to maximize sample representivity
Post-1990 a NQ drilling core was sawn with half core submitted for assay a HQ drilling core was sawn with quarter core submitted for assay a No second half samples were submitted for analysis a It is considered water used for core cutting is unprocessed and
unlikely to have introduced sample contamination a Procedures relating to the definition of the line of cutting or splitting
are not available It is expected that lsquostandard industry practicersquo for the period was applied to maximise sample representivity
2016 Metallurgical Drilling a All HQ drill core was sawn into halves with each half then re-sawn
to provide 4 lengths of quarter core for each interval a One half core was submitted for assay a One quarter core was submitted for metallurgical test work a One quarter core was retained for archive a It is considered that the water used for core cutting is most
unlikely to have introduced sample contamination a Sample sawing and processing for test work were undertaken
according to lsquostandard industry practicersquo to maximise sample representivity
2017 Diamond Drilling a All HQ drill core was sawn into halves with each half then re-sawn to
provide 4 lengths of quarter core for each interval
a One quarter ndash one half core was submitted for assay
a One quarter ndash three quarter core was retained for archive
a It is considered that the water used for core cutting is most unlikely to have introduced sample contamination
a Sample sawing and processing for test work were undertaken according to lsquostandard industry practicersquo to maximise sample representivity
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 18
Criteria JORC Code Explanation Commentary
Sub-sampling techniques and sample preparation (continued)
Historical Reverse Circulation Drilling a Sub-sampling of reverse circulationpercussion chips was
achieved using a cyclone with cone or riffle splitter a During drilling operations the sample cyclone and splitter were
regularly cleaned to prevent down hole sample contamination a Dry sampling was achieved with the use of adequate air using a
compressor and booster where groundwater was encountered a During reverse circulation drilling completed by Broken Hill
Prospecting duplicate samples were collected at the time of drilling These were obtained by spearing the bulk material held in the PVC sacks using a spear made of 40mm diameter PVC pipe three samples were speared through the full depth of the bulk material and these were combined to form one sample
a The Thackaringa drilling database includes a total of 139 field duplicates collected during reverse circulation drilling This reflects a ratio of approximately one field duplicate in every 32 samples (31) for drill holes where duplicates were collected (31 drill holes for 4469 metres) and an overall ratio of one field duplicate in every 42 samples (24) for all reverse circulation drill holes (43 drill holes for 58015 metres)
a Statistical analysis of field duplicates collected during drilling completed by Broken Hill Prospecting (119 duplicates representing 86 of all field duplicates) considered 18 elements of which only chromium lanthanum and titanium show some bias in the duplicate samples For cobalt the confidence limits were evenly placed either side of zero and the duplicates are deemed to be representative of the original samples
2017 Reverse Circulation Drilling a Sub-sampling of reverse circulationpercussion chips was achieved
using a riffle splitter
a During drilling operations the splitter was regularly cleaned to prevent down hole sample contamination
a Dry sampling was achieved with the use of adequate air using a compressor and booster where groundwater was encountered
a During reverse circulation drilling completed by Broken Hill Prospecting duplicate samples were collected at the time of drilling These were obtained by riffle splitting the remnant bulk sample following collection of the primary split
a Field duplicate samples were collected regularly during drilling (for every 18th sample on average)
a Assay results received to date include analysis of 120 field duplicate pairs from 24 RC drill holes
a A measure of the average precision of the sampling sample preparation and assaying methods given by the mean per cent difference (MPD) assay values of the duplicate pairs is summarised below Overall the sampling and assay precision for Co Fe and S at economically significant grades is regarded as reasonable
RC Field Duplicate Pairs
Co Cut-Off Count Co MPD S MPD Fe MPD
All 120 13 16 9
200ppm 52 13 11 10
500ppm 34 12 9 9
1000ppm 20 8 7 7
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 19
Criteria JORC Code Explanation Commentary
Quality of assay data and laboratory tests
a The nature quality and appropriateness of the assaying and laboratory procedures used and whether the technique is considered partial or total
a For geophysical tools spectrometers handheld XRF instruments etc the parameters used in determining the analysis including instrument make and model reading times calibrations factors applied and their derivation etc
a Nature of quality control proce-dures adopted (eg standards blanks duplicates external laboratory checks) and whether acceptable levels of accuracy (ie lack of bias) and precision have been established
a The nature and quality of all assaying and laboratory procedures employed for samples obtained through drilling (diamond and reverse circulation) are considered lsquoindustry standardrsquo for the respective periods
a The assay techniques employed for drilling (diamond and reverse circulation) include mixed acid digestion with ICP-OES and AAS finishes These methods are considered appropriate for the targeted mineralisation and regarded as a lsquonear totalrsquo digestion technique with resistive phases not expected to affect cobalt analyses
a All samples have been processed at independent commercial laboratories including AMDEL Australian Laboratory Services (ALS) Analabs and Genalysis
a All samples from drilling completed by Broken Hill Prospecting during 2011-2012 were assayed at ALS in Orange New South Wales All samples from drilling completed by Broken Hill Prospecting during 2016-2017 were assayed at ALS Adelaide South Australia ALS is a NATA Accredited Laboratory and qualifies for JASANZ ISO90012008 quality systems ALS maintains robust internal QAQC procedures (including analysis of standards repeats and blanks)
a To monitor the accuracy of assay results from the 2017 Thackaringa drilling CRM standards were included in the assay sample stream every 24 samples (on average) for RC chips and every 30 samples for diamond core The CRM samples were purchased from Ore Research amp Exploration Pty Ltd and the results are summarised below
Cobalt Sulphur Iron
OREAS Standard Count plusmn1SD plusmn2SD plusmn3SD plusmn3SD+ plusmn1SD plusmn2SD plusmn3SD plusmn3SD+ plusmn1SD plusmn2SD plusmn3SD plusmn3SD+
160 Low S Blank (28ppm Co) 12 10 ndash ndash 2 7 ndash ndash 5 6 2 2 2
162 Medium Grade (631ppm Co) 53 37 12 3 ndash 32 18 3 ndash 14 12 13 14
163 Low Grade (230ppm Co) 40 30 8 2 ndash 7 25 7 1 2 3 2 33
165 High Grade (2445ppm Co) 13 11 2 ndash ndash 7 5 1 ndash 1 5 2 5
166 High Grade (1970ppm Co) 35 26 8 ndash 1 27 6 ndash 2 9 5 5 16
153 114 30 5 3 80 54 11 8 32 27 24 70
75 20 3 2 52 35 7 5 21 18 16 46
Cobalt CRM Standards
Internal COB assay QAQC protocols cobalt performed well with 95 standard analyses falling within two standard deviations of the certified value and 75 within one SD No systematic out-of-specification trends were identified and there was no discernible tendency for a particular Co standard to preferentially assay either higher or lower than the certified Co concentration
Cobalt Blanks
A number of blanks were also submitted with the RC chip and diamond core samples mdash the OREAS160 CRM is essentially a low-sulphide blank with respect to cobalt (28ppm) and the results of assay of this standard are summarised in Table 1 In addition five quartz sand blanks were submitted bracketing very pyrite-rich intervals in diamond drill holes 17THD06 and 17THD07 Overall the quartz sand blanks returned a maximum of 69ppm Co 004 S and 065 Fe which are regarded as similar to background values and any contamination during sample preparation at the assay laboratory is likely to be immaterial to the final results
Based on the assay of standards and blanks with 95 of the Co results falling within two standard deviations of the certified value it is concluded that the assay results for Co are likely to be representative for the material submitted with no additional source of inaccuracy or bias identified
Sulphur CRM Standards
sulphur was reasonably well-performed with 87 of the total 153 standard analyses falling within two standard deviations of the certified value and 95 within 3SD
Iron CRM Standards
Iron analysis of standards showed poor accuracy with a tendency to assay low mdash 46 of the assays fall outside of 3 SD typically but not exclusively lower than the certified value
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 20
Criteria JORC Code Explanation Commentary
Verification of sampling and assaying
a The verification of significant intersections by either inde-pendent or alternative company personnel
a The use of twinned holes
a Documentation of primary data data entry procedures data verification data storage (physical and electronic) protocols
a Discuss any adjustment to assay data
a Historical drilling intersections were internally verified by personnel employed by previous explorers including CRAE Pty Limited Central Austin Pty Limited and Hunter Resources Broken Hill Prospecting has completed a systematic review of the related data
a The Thackaringa drilling database exists in electronic form as a Microsoft Access database Information related to individual drill holes is stored in digital files as extracted from historical reports (typically including location plan section logs photos surveys assays and petrology)
a Historical drilling data available in electronic form has been re-formatted and imported into the drilling database
a Quantitative historical drilling data including assays have been captured electronically during systematic data compilation and validation completed by Broken Hill Prospecting
a Samples returning assays below detection limits are assigned half detection limit values in the database
a All significant intersections are verified by the Companyrsquos Exploration Manager and independent geological consultant
Location of data points
a Accuracy and quality of surveys used to locate drill holes (collar and down-hole surveys) trenches mine workings and other locations used in Mineral Resource estimation
a Specification of the grid system used
a Quality and adequacy of topographic control
a Historical drill collars have been relocated and surveyed using a differential GPS (DGPS) In the instances where no collar could be located the position has been derived from georeferenced historical plans
a During systematic data validation completed in 2016 three drill holes at Big Hill were found to be incorrectly located One collar was located and surveyed by GPS and two were digitised from georeferenced historical plans (reported to the nearest metre) as the collars had been destroyed These corrections were captured in the Big Hill Mineral Resource estimate
a Down hole surveys using digital cameras were completed on all post 2000 drilling Down hole surveys for some earlier drilling were estimated from hole trace and section data where raw survey data was not reported
a All 2017 Thackaringa drill hole collars were located and surveyed with DGPS by an independent surveyor with reported accuracy of plusmn005m in horizontal and vertical measurement
a Downhole surveys using digital cameras were completed on all 2017 drill-holes
a All data is recorded in the GDA94 datum UTM Zone 54 (MGA54)
a 3D validation of drilling data has been completed by independent geological consultants to support detailed geological modelling in Microminetrade software
a The quality of topographic control is deemed adequate in consideration of the results presented in this release
Data spacing and distribution
a Data spacing for reporting of Exploration Results
a Whether the data spacing and distribution is sufficient to estab-lish the degree of geological and grade continuity appropriate for the Mineral Resource and Ore Reserve estimation procedure(s) and classifications applied
a Whether sample compositing has been applied
a The data density of existing drill holes at Thackaringa has been materially increased by the 2017 drilling program which was undertaken primarily to undertake infill drilling
a Detailed geological mapping supported by drill-hole data of sufficient spacing and distribution to establish a 3D geological model
a The level of geological and grade continuity is appropriate for the Mineral Resource estimation methodologies used and the classifications applied (being wholly Inferred Mineral Resources) Note that a recalculation of the Mineral Resource using 2017 drilling and assay data will commence in mid-2017
a No sample compositing has been applied to reported intersections
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 21
Criteria JORC Code Explanation Commentary
Orientation of data in relation to geological structure
a Whether the orientation of sampling achieves unbiased sampling of possible structures and the extent to which this is known considering the deposit type
a If the relationship between the drilling orientation and the orientation of key mineralised structures is considered to have introduced a sampling bias this should be assessed and reported if material
a The 2017 drill holes at the Thackaringa project were typically angled at -500 or -600 to the horizontal and drilled perpendicular to the mineralised trend with drilling orientations adjusted along strike to accommodate folded geological sequences
a Mineralisation at the Big Hill and Railway prospects is steeply dipping and consequently mineralised intersections will be greater than true width At Pyrite Hill mineralisation is gently dipping and mineralised intersections will be close to true width
a The drilling orientation is not considered to have introduced a sampling bias on assessment of the current geological interpretation
Sample security
a The measures taken to ensure sample security
a Sample security procedures are considered to be lsquoindustry standardrsquo for the respective periods
a Following recent drilling completed by BPL samples were trucked by an independent courier directly from Broken Hill to ALS Adelaide
a BPL consider that risks associated with sample security are limited given the nature of the targeted mineralisation
Audits or reviews
a The results of any audits or reviews of sampling techniques and data
a In late 2016 an independent validation of the Thackaringa drilling database was completed
a The data validation process consisted of systematic review of drilling data (collars assays and surveys) for identification of transcription errors
a Following review historical drill hole locations were also validated against georeferenced historical maps to confirm their location
a Three (3) drill holes at Big Hill were found to be incorrectly located One collar was located and surveyed by GPS and two were digitised from georeferenced historical plans (reported to the nearest metre) as the collars had been destroyed These corrections were captured in the Big Hill Mineral Resource estimate
a Total depths for all holes were checked against original reports
a Final 3D validation of drilling data has been completed by independent geological consultants to support detailed geological modelling in Microminetrade software
a Audits and reviews of QAQC results and procedures are further described in preceding sections of this table including Quality of assay data and laboratory tests Sub-sampling techniques and sample preparation and Logging
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 22
Section 2 Reporting of Exploration Results(Criteria listed in the preceding section also apply to this section)
Criteria JORC Code Explanation Commentary
Mineral tenement and land tenure status
a Type reference namenumber location and ownership including agreements or material issues with third parties such as joint ventures partnerships overriding royalties native title interests historical sites wilderness or national park and environmental settings
a The security of the tenure held at the time of reporting along with any known impediments to obtaining a licence to operate in the area
a The Thackaringa Cobalt project is located approximately 25 kilometres west-southwest of Broken Hill and comprises four tenements with a total area of 63 km2
Tenement
Registered amp Beneficial Holder Minerals Grant Date Expiry Date
Annual Expenditure
Commit-ment
EL6622 Broken Hill Prospecting Limited (BPL)
Group 1 30082006 29082017 $47000
EL 8143 BPL Group 1 26072013 26072017 $14000
ML86 BPL Cobalt iron nickel platinum sulphur
05111975 04112017 $75000
ML87 BPL Cobalt iron nickel platinum sulphur
05111975 04112017 $75000
a The project tenure is subject to a Farm-In agreement between Cobalt Blue Holdings Limited (COB) and Broken Hill Prospecting Limited (BPL) The nature of this agreement is detailed in the COB Replacement Prospectus (as released 4 January 2017)
a The nearest residence (Thackaringa Station) is located approxi-mately three kilometres west of EL6622
a EL6622 is intersected by the Transcontinental Railway the Barrier Highway is located the north of the licence boundaries
a The majority of the project tenure is covered by Western Lands Lease which is considered to extinguish native title interest However Native Title Determination NC9732 (Barkandji Traditional Owners 8) is current over the area and may be relevant to Crown Land parcels (eg public roads) within the project area
a The project tenure is more than 90 kilometres from the nearest National Park and or Wilderness Area (Kinchega National Park) and approximately 20 kilometres south of the nearest Water Supply Reserve (Umberumberka Reservoir Water Supply Reserve)
a The Company is not aware of any impediments to obtaining a licence to operate in the area
Exploration done by other parties
a Acknowledgment and appraisal of exploration by other parties
a A detailed and complete record of all exploration activities undertaken prior to the BPL 2016 drilling program is appended to the JORC Table 1 which forms part of the Cobalt Blue Prospectus Document available on the COB website
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 23
Criteria JORC Code Explanation Commentary
Geology a Deposit type geological setting and style of mineralisation
Regional Geological Setting a The Thackaringa project is located in a deformed and metamor-
phosed Proterozoic supracrustal succession named the Willyama Supergroup which crops out as several inliers in western New South Wales including the Broken Hill Block (Willis et al 1982)
a Exploration by BPL Limited has been focused on the discovery of cobaltiferous pyrite deposits and Broken Hill type base-metal mineralisation both of which are known from historical exploration in the district
a The project area covers portions of the Broken Hill and Thackaringa group successions which host the majority of mineralisation in the region including the Broken Hill base-metal deposit The Sundown Group suite is also present The extensive sequence of quartz-albite-plagioclase rock that hosts the cobaltiferous pyrite mineralisation is interpreted as belonging to the Himalaya Formation which is stratigraphically at the top of the Thackaringa Group
Local Geological Setting a The oldest rocks in the region belong to the Curnamona Craton
which outcrops on the Broken Hill and Euriowie blocks a The overlying Proterozoic rocks have been broadly subdivided
into three major groupings of which the oldest groups are the highly deformed metasediments and igneous derived rocks of the Thackaringa and Broken Hill groups They comprise a major part of the Willyama Supergroup and host the giant Broken Hill massive Pb-Zn-Ag sulphide ore body EL6622 is within the Broken Hill block of the Curnamona Craton
Mineralisation Style a The Thackaringa Mineral deposits (Pyrite Hill Big Hill and Railway)
are characterised by large tonnage cobaltiferous-pyrite minerali-sation hosted within siliceous albitic gneisses and schists of the Himalaya Formation
a Cobalt mineralisation exists within stratabound pyritic horizons where cobalt is present within the pyrite lattice Mineralogical studies have indicated the majority of cobalt (~85) is found in solid solution with primary pyrite (Henley 1998)
a A strong correlation between pyrite content and cobalt grade is observed
a The regional geological setting indicates additional mineralisation targets including
a Stratiform Broken Hill Type (BHT) Copper-Lead-Zinc-Silver deposits
a Copper-rich BHT deposits a Stratiform to stratabound Copper-Cobalt-Gold deposits a Epigenetic Gold and Base metal deposits
Drill hole Information
a A summary of all information mat- erial to the understanding of the exploration results including a tab- ulation of the following information for all Material drill holes
a easting and northing of the drill hole collar
a elevation or RL (Reduced Level ndash elevation above sea level in metres) of the drill hole collar
a dip and azimuth of the hole
a down hole length and interception depth
a See drill holle summaries below
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 24
Drill hole summaries
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
17THD01 Pyrite Hill 1242 MGA54 518382 6449551 28906 -40 222 DDH1
17THD02 Pyrite Hill 1497 MGA54 518475 6449445 29054 -40 258 DDH1
17THD03 Pyrite Hill 785 MGA54 518370 6449190 30328 -40 2851 DDH1
17THD04 Big Hill 1198 MGA54 521078 6449589 27841 -45 1551 DDH1
17THD05 Big Hill 995 MGA54 521669 6449889 2785 -40 131 DDH1
17THD06 Railway 1655 MGA54 521970 6450705 2872 -45 128 DDH1
17THD07 Railway 2746 MGA54 522569 6451282 27067 -45 1565 DDH1
17THD08 Railway 1325 MGA54 522784 6451280 268881 -45 326 DDH1
17THD09 Railway 1205 MGA54 522905 6451511 278471 -40 1525 DDH1
17THD10 Railway 842 MGA54 522992 6451569 279779 -45 130 DDH1
17THD11 Railway 1115 MGA54 523109 6451682 280847 -40 1605 DDH1
17THD12 Railway 1265 MGA54 522796 6451419 272936 -40 14075 DDH1
17THD13 Railway 1055 MGA54 522836 6451456 276747 -40 1385 DDH1
17THD14 Pyrite Hill 99 MGA54 518375 6449089 29425 -60 285 DDH1
17THR001 Railway 156 MGA54 522615 6451277 267561 -60 120 RC5
17THR002 Railway 160 MGA54 522573 6451299 268511 -60 120 RC5
17THR003 Railway 96 MGA54 522124 6450868 27739 -60 130 RC5
17THR004 Railway 150 MGA54 522387 6451319 271453 -60 120 RC5
17THR005 Railway 72 MGA54 522024 6450783 282154 -60 120 RC5
17THR006 Railway 114 MGA54 522049 6450780 28401 -58 125 RC5
17THR007 Railway 180 MGA54 521965 6450699 286585 -59 125 RC5
17THR008 Railway 132 MGA54 521917 6450562 291682 -56 105 RC5
17THR009 Railway 120 MGA54 521906 6450496 292751 -58 105 RC5
17THR010 Railway 72 MGA54 521959 6450398 286445 -56 285 RC5
17THR011 Railway 126 MGA54 522302 6451169 276812 -56 120 RC5
17THR012 Railway 180 MGA54 522440 6451304 274931 -58 173 RC5
17THR013 Big Hill 102 MGA54 521750 6449942 28489 -60 1305 RC5
17THR014 Big Hill 104 MGA54 521628 6449796 277545 -53 130 RC5
17THR015 Big Hill 108 MGA54 521793 6449918 284847 -58 310 RC5
17THR016 Pyrite Hill 138 MGA54 518446 6449209 290391 -57 283 RC5
17THR017 Pyrite Hill 120 MGA54 518449 6449263 293147 -56 2815 RC5
17THR018 Pyrite Hill 78 MGA54 518027 6449806 289567 -60 222 RC5
17THR019 Pyrite Hill 72 MGA54 518105 6449754 287701 -55 222 RC5
17THR020 Pyrite Hill 66 MGA54 518166 6449695 288685 -60 222 RC5
17THR021 Pyrite Hill 78 MGA54 518183 6449717 286007 -60 222 RC5
17THR022 Pyrite Hill 156 MGA54 518510 6449306 28682 -55 281 RC5
17THR023 Pyrite Hill 150 MGA54 518506 6449377 289481 -57 2645 RC5
17THR024 Pyrite Hill 150 MGA54 518457 6449498 288137 -595 2285 RC5
17THR025 Pyrite Hill 114 MGA54 518311 6449609 287463 -60 222 RC5
17THR026 Pyrite Hill 114 MGA54 518268 6449681 284164 -60 222 RC5
17THR027 Pyrite Hill 72 MGA54 518243 6449646 287176 -60 222 RC5
17THR028 Railway 150 MGA54 522457 6451167 300659 -60 350 RC5
17THR029 Railway 162 MGA54 522482 6451084 295964 -60 175 RC5
17THR030 Railway 138 MGA54 522783 6451423 270814 -55 140 RC5
17THR031 Railway 120 MGA54 522945 6451566 27619 -55 145 RC5
17THR032 Railway 132 MGA54 522819 6451473 273712 -53 140 RC5
17THR033 Railway 120 MGA54 522501 6451315 26963 -60 175 RC5
17THR034 Railway 132 MGA54 522321 6451214 275947 -55 127 RC5
17THR035 Railway 156 MGA54 522259 6451120 275749 -552 130 RC5
17THR036 Railway 92 MGA54 522186 6450998 275339 -612 130 RC5
17THR037 Railway 126 MGA54 522148 6450941 274202 -55 126 RC5
17THR038 Railway 168 MGA54 521927 6450619 289555 -55 108 RC5
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 25
Historic down-hole information
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
67TH01 Pyrite Hill 3042 MGA94_54 518564805 644946003 280643 -55 2606 DDH1
70TH02 Pyrite Hill 1486 MGA94_54 51827242 644968054 28408 -61 2186 DDH1
70TH03 Pyrite Hill 1414 MGA94_54 51844985 644921188 28981 -62 2836 DDH1
70BH01 Big Hill 1027 MGA94_54 52085056 64493085 28456 -47 3186 DDH1
70BH02 Big Hill 1039 MGA94_54 52078612 64492644 2801 -50 3186 DDH1
80PYH13 Pyrite Hill 77 MGA94_54 5183582 64490377 29035 -50 2807 DDH1
80PYH14 Pyrite Hill 3003 MGA94_54 51866118 644928762 27796 -60 2807 DDH1
80PYH03 Pyrite Hill 35 MGA94_54 5182515 64495699 2994 -60 2207 PDDH2 2280BGH09 Big Hill 1005 MGA94_54 52065743 644929252 27280 -50 1447 DDH1
80PYH01 Pyrite Hill 2453 MGA94_54 5182462 64495657 3011 -60 2027 PDDH2 680PYH02 Pyrite Hill 513 MGA94_54 5182607 64495742 2976 -60 2207 PDDH2 335880PYH04 Pyrite Hill 55 MGA94_54 51836655 644923174 30834 -60 2957 PDDH2 38780PYH05 Pyrite Hill 936 MGA94_54 51822697 644967819 28518 -49 2227 PDDH2 1880PYH06 Pyrite Hill 855 MGA94_54 51816348 64497573 28373 -544 2227 PDDH2 1880PYH07 Pyrite Hill 945 MGA94_54 51808406 644981836 28516 -55 2227 PDDH2 1280PYH08 Pyrite Hill 110 MGA94_54 51800954 644988543 28614 -60 2227 PDDH2 880PYH09 Pyrite Hill 1005 MGA94_54 5179174 644993176 28655 -485 2227 PDDH2 880PYH10 Pyrite Hill 1453 MGA94_54 51839296 644956596 28553 -50 2227 PDDH2 25580PYH11 Pyrite Hill 1031 MGA94_54 51844096 644932952 29725 -50 2807 PDDH2 1880PYH12 Pyrite Hill 1095 MGA94_54 51840728 644913731 29263 -50 2807 PDDH2 4280BGH05 Big Hill 5486 MGA94_54 52095535 644953441 28893 -60 1637 RCDDH3 45598TC01 Railway 100 MGA94_54 52275006 645133973 26727 -60 1589 RC5
98TC02 Railway 100 MGA94_54 52239241 645138683 26678 -60 1409 RC5
98TC03 Big Hill 84 MGA94_54 52081645 644936939 31305 -60 1359 RC5
98TC04 Big Hill 13825 MGA94_54 52086005 644945085 30409 -60 1409 RC5
98TC05 Big Hill 70 MGA94_54 520728 644932807 28863 -50 1229 RC5
98TC06 Big Hill 108 MGA94_54 520715 6449343 28513 -60 1259 RC5
98TC07 Big Hill 120 MGA94_54 52078597 644938821 29922 -50 1339 RC5
98TC08 Big Hill 90 MGA94_54 52080195 644947781 29101 -60 1509 RC5
98TC09 Big Hill 114 MGA94_54 52082221 644946079 29625 -60 1339 RC5
98TC10 Big Hill 134 MGA94_54 521018 6449576 2815 -50 1729 RC5
98TC11 Railway 35 MGA94_54 5224112 645137396 26701 -60 1329 RC5
80BGH06 Big Hill 6804 MGA94_54 520880 6449472 299 -60 1707 RCDDH3 5880BGH08 Big Hill 797 MGA94_54 52076879 644939093 29629 -60 1267 RCDDH3 69980BGH07 Big Hill 23 MGA94_54 52113656 6449599 27411 -60 1777 RC5
93MGM01 Pyrite Hill 70 MGA94_54 51818544 644971377 28628 -60 2228 RDDH4 2493MGM02 Pyrite Hill 180 MGA94_54 51851545 644945467 28479 -60 2588 RDDH4 4811PHR01 Pyrite Hill 150 MGA94_54 51843547 644907276 28534 -60 27906 RC5
11PHR02 Pyrite Hill 198 MGA94_54 51849992 644915931 28379 -60 27906 RC5
11PHR03 Pyrite Hill 240 MGA94_54 5185603 644918961 28026 -60 27906 RC5
11PHR04 Pyrite Hill 186 MGA94_54 51852863 6449257 28403 -60 27906 RC5
11PHR05 Pyrite Hill 234 MGA94_54 51858425 644939762 28022 -60 25906 RC5
11PHR06 Pyrite Hill 180 MGA94_54 5184909 644952259 28402 -60 23406 RC5
11PHR07 Pyrite Hill 174 MGA94_54 51841347 64495929 28286 -60 21906 RC5
11PHR08 Pyrite Hill 180 MGA94_54 51834274 644965585 28288 -60 21806 RC5
11PSR01 Pyrite Hill 59 MGA94_54 51874273 6448864 26838 -60 25806 RC5
11PSR02 Pyrite Hill 132 MGA94_54 51871938 644896001 27041 -60 25506 RC5
11PSR03 Pyrite Hill 78 MGA94_54 51868699 644905535 27279 -60 25506 RC5
12BER01 Railway 157 MGA94_54 52166731 644989323 27769 -60 141 RC5
12BER02 Railway 132 MGA94_54 52121267 644969067 27353 -60 162 RC5
12BER03 Railway 151 MGA94_54 52187901 645043547 28859 -60 102 RC5
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 26
Historic down-hole information (continued)
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
12BER04 Railway 148 MGA94_54 52235392 645126835 27435 -60 131 RC5
12BER05 Railway 145 MGA94_54 52243947 645116784 29973 -60 124 RC5
12BER06 Railway 169 MGA94_54 52248137 645109135 29595 -60 118 RC5
12BER07 Railway 115 MGA94_54 52232372 645074875 27791 -60 144 RC5
12BER08 Railway 193 MGA94_54 52222079 64508118 27316 -60 129 RC5
12BER09 Railway 13975 MGA94_54 52210125 645088144 27591 -60 129 RC5
12BER10 Railway 151 MGA94_54 52195345 645071618 28449 -60 129 RC5
12BER11 Railway 193 MGA94_54 52273722 645137661 26583 -60 153 RC5
12BER12 Railway 111 MGA94_54 52290973 645151676 27736 -60 153 RC5
12BER13 Railway 205 MGA94_54 52288381 645155754 27103 -60 156 RC5
12BER14 Railway 151 MGA94_54 52312483 645163707 28836 -60 152 RC5
12BER15 Railway 109 MGA94_54 5233113 64518417 28395 -60 154 RC5
12BER16 Railway 115 MGA94_54 52299408 645159199 27595 -60 156 RC5
12BER17 Railway 1155 MGA94_54 5225165 645131494 2691 -60 153 RC5
12BER18 Railway 157 MGA94_54 52233275 645128131 27229 -60 129 RC5
12BER19 Railway 97 MGA94_54 52224055 645106715 27616 -60 135 RC5
12BER20 Railway 120 MGA94_54 52129169 644973363 27695 -60 165 RC5
13BED01 Railway 3492 MGA94_54 52248021 645109243 29601 -60 3007 DDH1
16DM01 Pyrite Hill 1616 MGA94_54 51841138 644959389 28269 -60 2155 DDH1
16DM02 Pyrite Hill 1834 MGA94_54 51852662 644926158 28418 -60 2850 DDH1
16DM03 Big Hill 1265 MGA94_54 5210371 644956749 28301 -60 1585 DDH1
16DM04 Big Hill 1054 MGA94_54 52081474 64494644 29618 -55 1285 DDH1
16DM05 Railway 2465 MGA94_54 5221037 645088187 27662 -60 1285 DDH1
16DM06 Railway 1604 MGA94_54 52291157 645151913 2785 -60 1525 DDH1
16DM07 Railway 2425 MGA94_54 52299526 645159826 27636 -60 1561 DDH1
16DM08 Railway 2585 MGA94_54 52235145 645127307 27385 -60 1309 DDH1
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 27
Down hole length and interception depth ndash 2017 holes
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THD01 34 123 89 982 94 87
including 35 41 6 1143 119 106
and 50 55 5 1311 131 115
and 81 122 41 1366 118 11
17THD02 47 134 87 911 88 92
including 48 77 29 1238 111 114
and 116 134 18 1199 110 111
17THD03 40 635 235 894 116 108
including 49 63 14 1076 143 124
17THD04 20 29 9 1033 86 872 96 24 703 88 81
17THD05 44 60 16 993 98 85
including 44 56 12 1094 109 94
71 76 5 840 64 6317THD06 39 85 46 1136 114 101
including 40 70 30 1227 122 104
and 76 85 9 1148 107 100
17THD07 15 128 113 879 81 88
including 47 55 8 1048 117 103
and 61 102 41 1452 125 123
142 152 10 704 6 102199 204 5 706 49 65
17THR001 27 63 36 1075 106 104
including 37 63 26 1280 119 115
75 84 9 755 91 139
17THR002 37 43 6 711 69 82
91 136 45 983 98 105
including 102 136 34 1190 117 118
17THR003 4 59 55 937 93 94
including 10 46 36 1212 116 110
17THR004 49 146 97 888 102 102
including 51 113 62 1051 114 113
17THR005 52 72 20 1053 128 126
including 53 63 10 1145 125 130
17THR006 14 74 60 754 86 87
including 17 44 27 1176 125 121
17THR007 5 22 17 837 0 125
including 12 19 7 1049 0 105
128 154 26 1034 114 115
including 128 146 18 1321 144 143
17THR008 37 78 41 1319 122 11217THR009 29 65 36 957 94 92including 34 60 26 1150 111 102
100 105 5 833 129 12717THR010 51 57 6 729 49 5317THR011 30 83 53 1116 12 109
including 31 62 31 1423 155 135
17THR012 50 117 67 748 75 86
including 59 67 8 1084 103 126
and 75 102 27 1120 110 113
172 177 5 725 64 64
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 28
Down hole length and interception depth ndash 2017 holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THR013 19 73 54 888 54 5
including 19 29 10 2576 88 77
17THR014 12 45 33 749 81 74
including 25 33 8 1148 113 94
17THR015 40 48 8 995 89 8117THR016 66 115 49 1096 129 134
including 66 81 15 1184 142 139
and 89 114 25 1183 134 141
17THR017 54 112 58 1383 132 128
including 56 85 29 2042 183 158
17THR018 47 63 16 1124 151 14117THR019 42 59 17 1032 107 114
17THR020 29 49 20 1067 116 115
including 29 36 7 1352 135 126
17THR021 44 64 20 1204 131 12717THR022 101 138 37 1152 107 1217THR023 91 137 46 1271 139 133
including 91 97 6 1953 187 166
and 114 125 11 2707 311 265
17THR027 29 54 25 1176 126 118
including 30 47 17 1382 141 125
Down hole length and interception depth ndash historic holes
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
11PHR02 74 114 40 875 108 116
11PHR03 150 162 12 750 83 96
11PHR03 163 190 27 732 106 119
11PHR03 206 227 21 988 117 13
11PHR04 124 172 48 1049 128 129
11PHR05 197 219 22 1138 107 133
11PHR06 104 135 31 854 83 115
11PHR06 155 171 16 1315 12 122
11PHR07 96 147 51 941 95 99
11PHR08 103 115 12 1417 139 148
11PHR08 126 144 18 1048 126 142
12BER01 115 139 24 768 72 74
12BER02 18 25 7 1062 103 93
12BER02 113 123 10 907 85 86
12BER04 41 90 49 1191 114 127
12BER04 121 126 5 1241 9 112
12BER05 33 39 6 1109 79 92
12BER05 65 76 11 721 63 66
12BER06 131 169 38 844 83 128
12BER07 38 43 5 704 10 101
12BER09 33 92 59 841 9 116
12BER11 31 62 31 738 84 126
12BER11 92 159 67 1061 10 131
12BER11 173 193 20 737 67 83
12BER12 27 81 54 1430 181 189
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 29
Down hole length and interception depth ndash historic holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
12BER13 21 42 21 761 74 91
12BER13 65 75 10 1882 204 216
12BER14 28 55 27 1013 125 129
12BER16 25 100 75 1008 106 107
12BER17 92 99 7 739 6 63
12BER18 117 157 40 1017 112 114
12BER19 34 56 22 1151 104 108
12BER19 68 75 7 780 61 6
12BER20 21 46 25 731 69 75
13BED01 266 2915 255 872 85 78
16DM01 96 147 51 851 91 86
16DM02 127 172 45 1118 138 136
16DM03 104 111 7 838 103 9
16DM04 91 99 8 887 91 84
16DM05 30 103 73 793 82 9
16DM05 199 211 12 830 251 221
16DM06 28 84 56 1280 162 167
16DM06 138 146 8 722 78 112
16DM07 35 60 25 1232 111 111
16DM07 71 104 33 1224 133 134
16DM08 76 100 24 1026 11 12
16DM08 165 177 12 921 122 126
17THD01 34 123 89 982 94 87
17THD02 47 134 87 911 88 92
17THD03 40 635 235 894 116 108
17THD04 20 29 9 1033 86 8
17THD04 72 96 24 703 88 81
17THD05 44 60 16 993 98 85
17THD05 71 76 5 840 64 63
17THD06 39 85 46 1136 114 101
17THD07 15 128 113 879 81 88
17THD07 142 152 10 704 6 102
17THD07 199 204 5 706 49 65
17THR001 27 63 36 1075 106 104
17THR001 75 84 9 755 91 139
17THR002 37 43 6 711 69 82
17THR002 91 136 45 983 98 105
17THR003 4 59 55 937 93 94
17THR004 49 146 97 888 102 102
17THR005 52 72 20 1053 128 126
17THR006 14 74 60 754 86 87
17THR007 5 22 17 837 0 125
17THR007 128 154 26 1034 114 115
17THR008 37 78 41 1319 122 112
17THR009 29 65 36 957 94 92
17THR009 100 105 5 833 129 127
17THR010 51 57 6 729 49 53
17THR011 30 83 53 1116 12 109
17THR012 50 117 67 748 75 86
17THR012 172 177 5 725 64 64
17THR013 19 73 54 888 54 5
17THR014 12 45 33 749 81 74
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 30
Down hole length and interception depth ndash historic holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THR015 40 48 8 995 89 81
17THR016 66 115 49 1096 129 134
17THR017 54 112 58 1383 132 128
17THR018 47 63 16 1124 151 141
17THR019 42 59 17 1032 32 114
17THR020 29 49 20 1067 116 115
17THR021 44 64 20 1204 131 127
17THR022 101 138 37 1152 107 12
17THR023 91 137 46 1271 139 133
17THR027 29 54 25 1176 126 118
67TH01 12344 20001 7657 979 0 0
70BH01 3962 5334 1372 3323 31 0
70BH01 6431 8443 2012 1203 95 0
70BH02 7406 8686 128 704 75 0
70TH02 78 841 61 1666 175 154
70TH02 871 1021 15 1661 8 72
70TH03 777 1295 518 1016 129 132
80BGH05 39 49 10 752 0 0
80BGH06 18 6804 5004 969 0 0
80BGH08 44 7815 3415 939 0 0
80PYH01 75 17 95 725 0 0
80PYH02 341 4825 1415 1121 0 0
80PYH03 23 35 12 711 0 0
80PYH04 3975 55 1525 735 0 0
80PYH05 367 65 283 1160 118 0
80PYH06 54 62 8 905 0 0
80PYH07 67 794 124 1113 125 0
80PYH10 4845 1374 8895 831 86 0
80PYH11 346 465 119 916 8 0
80PYH11 572 9105 3385 1239 106 0
80PYH12 302 365 63 791 102 0
80PYH12 8515 908 565 857 146 0
80PYH14 2518 2734 216 1252 131 0
93MGM02 85 160 75 941 85 0
98TC01 20 47 27 744 91 126
98TC01 48 71 23 917 119 164
98TC03 34 45 11 1480 55 6
98TC03 68 79 11 1095 43 42
98TC04 84 94 10 966 39 4
98TC04 107 133 26 771 77 82
98TC05 24 62 38 754 64 7
98TC06 66 72 6 727 104 111
98TC06 76 101 25 767 101 106
98TC07 35 46 11 1546 165 171
98TC07 61 82 21 728 91 94
98TC09 32 39 7 716 49 174
98TC09 82 107 25 732 6 67
98TC10 101 125 24 732 79 8
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 31
Criteria JORC Code Explanation Commentary
Data aggregation methods
a In reporting Exploration Results weighting averaging techniques maximum andor minimum grade truncations (eg cutting of high grades) and cut-off grades are usually Material and should be stated
a Where aggregate intercepts incorporate short lengths of high grade results and longer lengths of low grade results the procedure used for such aggregation should be stated and some typical examples of such aggregations should be shown in detail
a The assumptions used for any reporting of metal equivalent values should be clearly stated
Drilling a Drill hole intercept grades are typically reported as down-hole
length-weighted averages with any non-recovered sample within the reported intervals treated as no grade The cut-off used for selecting significant intersections is selected to reflect the overall tenor of mineralisation in most cases 500ppm cobalt
a No top cuts have been applied when calculating average grades for reported significant intersections
a No metal equivalent values are reported
Relationship between mineralis- ation widths and intercept lengths
a These relationships are particularly important in the reporting of Exploration Results
a If the geometry of the mineralisation with respect to the drillhole angle is known its nature should be reported
a If it is not known and only the down hole lengths are reported there should be a clear statement to this effect (eg lsquodown hole length true width not knownrsquo)
a Drill holes at the Thackaringa project are typically angled at 50deg or 60deg and drilled perpendicular to the mineralised trend with drilling orientations adjusted along strike to accommodate folded geological sequences
a Mineralisation at the Big Hill and Railway prospects is steeply dipping and consequently mineralised intersections will be greater than true width At Pyrite Hill mineralisation is gently dipping and mineralised intersections will be close to true width
a There is insufficient geological knowledge to accurately estimate true widths and as such all drill intersections are reported as down hole lengths
Diagrams a Appropriate maps and sections (with scales) and tabulations of intercepts should be included for any significant discovery being reported These should include but not be limited to a plan view of drill hole collar locations and appropriate sectional views
a Appropriate maps and sections are presented in the accompa-nying ASX release
Balanced reporting
a Where comprehensive reporting of all exploration results is not practicable representative reporting of both low and high grades andor widths should be practiced to avoid misleading reporting of Exploration Results
a Only mineralised drill hole intersections regarded as highly anomalous and of economic interest are reported The proportion of each hole represented by the reported intervals can be ascertained from the sum of the reported intervals divided by the total drill hole depth
a All assay results for drill holes included in the various Mineral Resource estimates have been considered and comprise results not necessarily regarded as anomalous
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Criteria JORC Code Explanation Commentary
Other substantive exploration data
a Other exploration data if meaningful and material should be reported including (but not limited to) geological obser-vations geophysical survey results geochemical survey results bulk samples ndash size and method of treatment metallurgical test results bulk density groun d- water geotechnical and rock characteristics potential deleterious or contaminating substances
a No further exploration data is deemed material to the results presented in this release
Further work a The nature and scale of planned further work (eg tests for lateral extensions or depth extensions or large-scale step-out drilling)
a Diagrams clearly highlighting the areas of possible extensions including the main geological interpretations and future drilling areas provided this information is not commercially sensitive
a The nature and scale of planned further work will be determined following the completion of revised Mineral Resource estimation for the Thackaringa deposits scheduled for May 2017
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 3
Following the Companyrsquos stated accelerated exploration strategy the 1H 2017 drilling program was completed by three drill rigs (one diamond and two reverse circulation) Inclined drill holes (between 40deg and 60deg) were designed to intersect the steeply dipping deposits at an optimal orientation Drill results continue to confirm the predictive geological model
The Thackaringa deposits have a combined strike length of over 45 kilometres varying from 25 to 100 metres width Significant local thickening of the mineralised envelope is due to the extensive development of isoclinal folding within the host lithology unit Initial interpretation of 2017 data suggests that this deformation may locally enhance cobalt and pyrite grade This new structural information provides a further opportunity to define high grade lenses within the broader mineralised envelope At Railway zones of high grade cobalt mineralisation were intersected in the hanging wall of the deposit and demonstrate strong continuity
Drilling undertaken to date has focussed on the shallow mineralisation ndash to approximately 150 metres below surface with confirmed mineralisation to greater depths Mineralisation at all three of the deposits remains open down-dip In addition to potential depth extension discrete pods of mineralisation mapped within the footwall at Railway deposit were intersected by drilling and offer additional footwall exploration potential The JV technical team is currently finalising geological modelling to further guide the pending revision of the Mineral Resource Estimate This process will begin in May 2017 on delivery of the final batch of assay results Further technical studies are continuing in parallel as the Company remains on schedule to deliver the Scoping Study by mid-2017
Field operations continue with rehabilitation of drill sites and preparations for the forecast commencement of baseline environmental and hydrological monitoring
Cobalt Blue Chairman Robert Biancardi commented
ldquoCOB is delighted with the timely and efficient conclusion to the drilling program Preliminary interpretation of the results supports the Companyrsquos belief that the Thackaringa JV is defining a world class cobalt-pyrite deposit We remain confident that data acquired during the 2016 and 2017 drilling programs will allow a significant enhancement in the estimated Mineral Resource Initial indications also suggest that recent work has enhanced the average grade within the overall mineralised enveloperdquo
Further results will be forthcoming from the final assay samples presently being processed which should be available for market release by the beginning of June The 2017 program comprised a significant RC program designed to improve drilling density in support of a forthcoming update of the Mineral Resource estimation and a Diamond Drilling program which ndash like the 2016 program ndash will provide ROM material for metallurgical testwork
Railway The Railway deposit is an elongated outcrop of mineralisation within a high-grade metamorphic host rock The pyrite-quartz-albite gneiss mineralised lithology has a total strike length of some 3000 metres continuing in a south-west arc to the Big Hill deposit which is offset by faulting (Figure 2)
Drilling at Railway comprised eight DD holes for a total of 1126m and 23 RC holes for a total 3053m The program was designed to close the spacing between holes to allow a re estimation of the existing Mineral Resource
The latest drilling assays confirm previous exploration results of high-grade cobalt and pyrite mineralisation Assays from Railway confirm broad continuous zones of cobalt and pyrite mineralisation significantly higher than the average resource grade (Figure 3)
Railway Results
Assays at Railway Trend confirm high grade intersections of mineralisation within a wide and continuous envelope Best mineralised intercepts include
a Drillhole 17THD06 ndash 46m 1136ppm Co 114 S and 101 Fe from 39m drill depth
a Drillhole 17THR001 ndash 36m 1075ppm Co 106 S and 104 Fe from 27m drill depth
a Drillhole 17THR005 ndash 20m 1053 ppm Co 128 S and 126 Fe from 52m drill depth
a Drillhole 17THR008 ndash 41m 1319ppm Co 122 S and 112 Fe from 37m drill depth
a Drillhole 17THR011 ndash 53m 1116ppm Co 120 S and 109 Fe from 30m drill depth
These results confirm the previous tenor and elevated grade of cobalt-pyrite mineralisation along the defined strike length Mineralisation at Railway remains open along strike and down-dip boosting the potential for an open pittable resource
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 4
Figure 2 Plan view of Railway Deposit For
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 5
Figure 3 Railway X-section along plane of 17THD07 For
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 6
Pyrite HillThe Pyrite Hill deposit is hosted within an extensively metamorphosed pyrite-albite-quartz gneiss The deposit has a strike length of 1200m and dips moderately to the east (Figure 5)
The drilling at Pyrite Hill comprised four DD holes for a total of 451m and 12 RC holes for a total 1308m The RC program was designed to close the spacing between existing holes to allow recalculation of the Mineral Resource the DD program comprised holes to twin existing RC holes and to provide material for metallurgical testwork
Pyrite Hill results
At Pyrite Hill assays confirm the down-dip mineralisation within the host lithology Best mineralised intercepts include
a Drillhole 17THD01 ndash 89m 982ppm Co 94 S and 87 Fe from 34m drill depth
a Drillhole 17THR016 ndash 49m 1096ppm Co 129 S and 134 Fe from 66m drill depth
a Drillhole 17THR017 ndash 58m 1383ppm Co 132 S and 128 Fe from 54m drill depth and
a Drillhole 17THR021 ndash 20m 1204ppm Co 131 S and 127 Fe from 44m drill depth
Figure 4 Logging ndash Thackaringa Diamond Drilling CoresFor
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 7
Figure 5 Plan view of Pyrite Hill
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Figure 6 Pyrite Hill X-section along plane of 17THR017 For
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 9
Big HillThe Big Hill deposit is an off-set southwestern extension of the high-grade metamorphic host at Railway The drilling at Big Hill comprised two diamond holes for a total of 219m and three RC holes for a total of 314m The RC program was designed to test the mineralisation at sparsely explored north-eastern end of the prospect at an interpreted offset fault zone between Big Hill and Railway The diamond program comprised holes to provide solid core to assist the structural interpretation of this complex hinge structure
Big Hill results
The 2017 drilling at Big Hill has discovered some structural complications at a fault zone nevertheless some of the highest-yet cobalt mineralisation was intersected in this section Best mineralised intercepts include
a Drillhole 17THR013 ndash 54m 888ppm Co 54 S and 50 Fe from 19m drill depth
Figure 7 Field Crew - RC Drill Rig - Railway Deposit
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 10
Figure 8 Plan view of Big HillFor
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 11
Figure 9 Big Hill X-section along plane of 17THR013For
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 12
Cobalt Blue BackgroundCobalt Blue (ldquoCOBrdquo) is an exploration company focussed on green energy technology and strategic development to upgrade the existing mineral resource at the Thackaringa Cobalt Project in New South Wales This strategic metal is in strong demand for new generation batteries particularly lithium-ion batteries now being widely used in clean energy systems
COB has entered into a farm-in joint venture agreement with Broken Hill Prospecting Limited (ldquoBPLrdquo) in which COB acquired an initial 51 interest in the Thackaringa Cobalt Project COB will undertake exploration and development programs at the Thackaring Cobalt Project and subject to the achievement of milestones will acquire 100 of the Thackaringa Cobalt Project
The Thackaringa Project 23 km west of Broken Hill and 400km by rail from Port Pirie consists of four granted tenements (EL6622 EL8143 ML86 and ML87) with total area of 63 km2 The main target for exploration is well known and contains documented large tonnage cobalt bearing pyrite deposits The project area is under-explored with the vast majority of historical exploration directed at or around the outcropping pyritic cobalt deposits at Pyrite Hill and Big Hill
Potential to extend the Mineral Resource at Pyrite Hill Big Hill Railway and the other prospects is high Numerous other prospects within COBrsquos tenement package are early stage and under-explored
Looking forward we would like our shareholders to keep in touch with COB updates and related news items which we will post on our website the ASX announcements platform as well as social media such as Facebook ( ) and LinkedIn ( ) Please donrsquot hesitate to join the lsquoCOB friendsrsquo on social media and also to join our newsletter mailing list at our website
Joe KaderavekChief Executive Officerjoekaderavekcobaltblueholdingscom(02) 9966 5629
Competent Person StatementThe information in this report that relates to exploration results Mineral Resources and Targets is based on information compiled by Mr Anthony Johnston BSc (Hons) who is a Member of the Australian Institute of Mining and Metallurgy and who is a non-executive director of Cobalt Blue Holdings Limited the Chief Executive Officer of Broken Hill Prospecting Limited and the Technical Manager of the Joint Venture Mr Johnston has sufficient experience which is relevant to the style of mineralisation and type of deposits under consideration and to the activity which he is undertaking to qualify as a Competent Person as defined in the 2004 amp 2012 Edition of the ldquoAustralasian Code for Reporting of Exploration Results Mineral Resources and Ore Reservesrdquo Mr Johnston consents to the inclusion in the announcement of the matters based on his information in the form and context that the information appears
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Appendix ndash JORC Code 2012 Edition ndash Table 1 Section 1 ndash Sampling Techniques and Data(Criteria in this section apply to all succeeding sections)
Criteria JORC Code Explanation Commentary
Sampling techniques
a Nature and quality of sampling (eg cut channels random chips or specific specialised industry standard measurement tools appropriate to the minerals under investigation such as down-hole gamma sondes or handheld XRF instruments etc) These examples should not be taken as limiting the broad meaning of sampling
a Include reference to measures taken to ensure sample repre-sentivity and the appropriate calibration of any measurement tools or systems used
a Aspects of the determination of mineralisation that are Material to the Public Report
a In cases where lsquoindustry standardrsquo work has been done this would be relatively simple (eg lsquoreverse circulation drilling was used to obtain 1 m samples from which 3 kg was pulverised to produce a 30 g charge for fire assayrsquo) In other cases more explanation may be required such as where there is coarse gold that has inherent sampling problems Unusual commodities or mineralisation types (eg submarine nodules) may warrant disclosure of detailed information
Diamond Drilling (DD)Pre-1990a Diamond drilling was used to obtain core from which irregular
intervals reflecting visual mineralisation and geological logging were hand-split or sawn Samples were submitted for analysis using a mixed acid digestion and AAS methodology
Post-1990 a Diamond drilling (one drill hole) was used to obtain core from
which irregular intervals reflecting visual mineralisation and geological logging were sawn (quarter core for HQ) Samples were submitted for analysis using a mixed acid digestion and ICP-OES methodology
2016 Metallurgical Drillinga Eight HQ diameter diamond drill holes (DD) were drilled at
the Thackaringa project in late 2016 They will be used as metallurgical reference holes and to twin some of the previous reverse circulation percussion (RC) holes for QAQC and assay comparison between DD and RC There were two holes drilled at Pyrite Hill two at Big Hill and four at Railway
a Diamond drilling was used to obtain core from which regular (one-metre) intervals were sawn with
a one half core dispatched for analysis using a mixed acid digestion and ICP-AES methodology
a the other half was further sawn such that one quarter- core was sent for metallurgical test work and the other quarter-core retained for archival purposes
Historical Reverse Circulation Drilling a RC drilling was used to obtain a representative sample by means
of riffle splitting with samples submitted for analysis using the above-mentioned methodologies
a Pre-2000 drill samples were assayed for a small and variable suite of elements (sometimes only cobalt) The post-2000 drill samples (5095 samples) are all assayed by ICP-MS for a suite of 33 elements
2017 Diamond Drilling Program a This announcement summarises the results from approximately
23 of the 2017 diamond drilling program Fourteen HQ diameter diamond drill holes (DD) were assayed at the Thackaringa project They will be used as metallurgical reference holes and to twin some of the previous reverse circulation percussion (RC) holes for QAQC and assay comparison between DD and RC There were four holes drilled at Pyrite Hill two at Big Hill and 8 at Railway
a Diamond drilling (17THD01-03) was used to obtain core from which regular (one-metre) intervals were sawn with
a one half core dispatched for analysis using a mixed acid digestion and ICP-AES methodology
a the other half was retained for future metallurgical test work and archival purposes
a Diamond drilling (17THD04-14) was used to obtain core from which regular (one-metre) intervals were sawn with
a one quarter core dispatched for analysis using a mixed acid digestion and ICP-AES methodology
a the other three quarters was retained for future metallurgical test work and archival purposes
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 14
Criteria JORC Code Explanation Commentary
Sampling techniques (continued)
2017 RC drilling Program a This announcement summarises the results from approximately
23 of the 2017 RC drilling program Thirty eight (38) RC drill holes were drilled amp assayed at the Thackaringa project They will be used to infill the drill spacing of historic holes to allow a re-estimation of the existing Mineral Resource There were 12 holes drilled at Pyrite Hill three at Big Hill and 23 at Railway
a RC drilling was used to obtain a representative sample by means of riffle splitting with samples submitted for analysis using the above-mentioned methodologies
a The 2017 drill samples are all assayed by ICP-MS for a suite of 33 elements
Drilling techniques
a Drill type (eg core reverse circulation open-hole hammer rotary air blast auger Bangka sonic etc) and details (eg core diameter triple or standard tube depth of diamond tails face-sampling bit or other type whether core is oriented and if so by what method etc)
a The Thackaringa drilling database comprises a total of forty-eight (48) DD holes and eighty-one (81) RC drill holes Diamond drilling was predominantly completed with standard diameter conventional HQ and NQ utilising RC and percussion pre-collars to an average 25 metres (see Drill-hole Information for further details) Early (1960-1970) drill holes utilised HX ndash AX diameters dependent on drilling depth Reverse circulation drilling utilised standard drill-hole diameters (48rdquo-55rdquo) with a face sampling hammer
a During 2013 a single diamond drill hole (13BED01) was completed at the Railway deposit using a triple tube system with a HQ3 diameter
Year Drilling Metres
1967 1 diamond drill hole 3042
1970 4 diamond drill holes 4966
1980 18 diamond and 1 RC drill hole 171123
1993 2 diamond drill holes 250
1998 11 RC drill holes 109325
2011 11 RC drill holes 1811
2012 20 RC drill holes 287425
2013 1 diamond drill hole 3492
2016 8 diamond drill holes 14848
2017 14 diamond drill holes and 38 RC drill holes 6472
Total 48 diamond and 81 RC drill holes 1684653
a This ASX release describes assay results from seven (7) diamond drill holes and twenty-four (24) RC holes completed and assayed by April 2017 Commencement of that drilling program was reported to ASX by the company in April 2017
a Diamond drilling was completed using a triple tube system with a HQ3 diameter
a Holes were drilled at angles between 40 and 60 degrees from horizontal and the resulting core was oriented as part of the logging process
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 15
Criteria JORC Code Explanation Commentary
Drill sample recovery
a Method of recording and assessing core and chip sample recoveries and results assessed
a Measures taken to maximise sample recovery and ensure representative nature of the samples
a Whether a relationship exists between sample recovery and grade and whether sample bias may have occurred due to preferential lossgain of finecoarse material
Diamond Drilling
a Historical core recoveries were accurately quantified through measurement of actual core recovered versus drilled intervals
a Historical diamond drilling employed conventional drilling techniques while diamond drilling completed by Broken Hill Prospecting utilised a triple-tube system to maximise sample recovery
a Core recovery of 997 was achieved during completion of drill hole 13BED01
a Core recovery of 98 was achieved during the 2016 diamond drilling program
a Core recovery of 933 was achieved during the 2017 diamond drilling program
a No relationship between sample recovery and grade has been observed
Reverse Circulation Drilling
a Reverse circulation sample recoveries were visually estimated during drilling programs Where the estimated sample recovery was below 100 this was recorded in field logs by means of qualitative observation
a Reverse circulation drilling employed adequate air (using a compressor and booster) to maximise sample recovery
a No relationship between sample recovery and grade has been observed
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 16
Criteria JORC Code Explanation Commentary
Logging a Whether core and chip samples have been geologically and geotechnically logged to a level of detail to support appropriate Mineral Resource estimation mining studies and metallurgical studies
a Whether logging is qualitative or quantitative in nature Core (or costean channel etc) photography
a The total length and percentage of the relevant intersections logged
a A qualified geoscientist has logged all reported drill holes in their entirety This logging has been completed to a level of detail considered to accurately support Mineral Resource estimation and metallurgical studies The parameters logged include lithology alteration mineralisation and oxidation These parameters are both qualitative and quantitative in nature
a Diamond drilling completed in 2017 by BPL has been subject to geotechnical logging with parameters recorded including rock-quality designation (RQD) fracture frequency and hardness
a During 2013 a considerable amount of historical drilling was re-logged through review of available core stored at Broken Hill as well the re-interpretation of historical reports where core or percussion samples no longer exist A total of eight (8) diamond drill holes and sixteen (16) diamond drill holes with pre-collars were re-logged as detailed below
Hole ID Deposit Max Depth Hole TypePre-Collar Depth (m)
67TH01 Pyrite Hill 3042 DDH1 ndash
70TH02 Pyrite Hill 1486 DDH1 ndash
70TH03 Pyrite Hill 1414 DDH1 ndash
70BH01 Big Hill 1027 DDH1 ndash
70BH02 Big Hill 1039 DDH1 ndash
80PYH13 Pyrite Hill 77 DDH1 ndash
80PYH14 Pyrite Hill 3003 DDH1 ndash
80BGH09 Big Hill 1005 DDH1 ndash
80PYH01 Pyrite Hill 2453 PDDH2 6
80PYH02 Pyrite Hill 513 PDDH2 3358
80PYH04 Pyrite Hill 55 PDDH2 387
80PYH05 Pyrite Hill 936 PDDH2 18
80PYH06 Pyrite Hill 855 PDDH2 18
80PYH07 Pyrite Hill 945 PDDH2 12
80PYH08 Pyrite Hill 110 PDDH2 8
80PYH09 Pyrite Hill 1005 PDDH2 8
80PYH10 Pyrite Hill 1453 PDDH2 255
80PYH11 Pyrite Hill 1031 PDDH2 18
80PYH12 Pyrite Hill 1095 PDDH2 42
80BGH05 Big Hill 5486 RCDDH3 455
80BGH06 Big Hill 6804 RCDDH3 58
80BGH08 Big Hill 797 RCDDH3 699
93MGM01 Pyrite Hill 70 RDDH4 24
93MGM02 Pyrite Hill 180 RDDH4 48
1 Diamond drill hole2 Diamond drill hole with percussion pre-collar3 Diamond drill hole with reverse circulation pre-collar4 Diamond drill hole with rotary air blast pre-collar
a Litho-geochemistry has been used to verify geological logging where available for drilling completed by Broken Hill Prospecting post 2010
a Representative reference trays of chips from reverse circulation drilling completed post 2010 have been retained by Broken Hill Prospecting
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 17
Criteria JORC Code Explanation Commentary
Sub-sampling techniques and sample preparation
a If core whether cut or sawn and whether quarter half or all core taken
a If non-core whether riffled tube sampled rotary split etc and whether sampled wet or dry
a For all sample types the nature quality and appropriateness of the sample preparation technique
a Quality control procedures adopted for all sub-sampling stages to maximise representivity of samples
a Measures taken to ensure that the sampling is representative of the in situ material collected including for instance results for field duplicatesecond-half sampling
a Whether sample sizes are appropriate to the grain size of the material being sampled
Diamond Drilling (DD)Pre-1990a Core samples were hand-split or sawn with re-logging of available
historical core (see Logging) indicating a 7030 (retainedassayed) split was typical The variation of sample ratios noted are consid-ered consistent with the sub-sampling technique (hand-splitting)
a No second half samples were submitted for analysis a It is considered water used for core cutting is unprocessed and
unlikely to have introduced sample contamination a Procedures relating to the definition of the line of cutting or splitting
are not available It is expected that lsquostandard industry practicersquo for the period was applied to maximize sample representivity
Post-1990 a NQ drilling core was sawn with half core submitted for assay a HQ drilling core was sawn with quarter core submitted for assay a No second half samples were submitted for analysis a It is considered water used for core cutting is unprocessed and
unlikely to have introduced sample contamination a Procedures relating to the definition of the line of cutting or splitting
are not available It is expected that lsquostandard industry practicersquo for the period was applied to maximise sample representivity
2016 Metallurgical Drilling a All HQ drill core was sawn into halves with each half then re-sawn
to provide 4 lengths of quarter core for each interval a One half core was submitted for assay a One quarter core was submitted for metallurgical test work a One quarter core was retained for archive a It is considered that the water used for core cutting is most
unlikely to have introduced sample contamination a Sample sawing and processing for test work were undertaken
according to lsquostandard industry practicersquo to maximise sample representivity
2017 Diamond Drilling a All HQ drill core was sawn into halves with each half then re-sawn to
provide 4 lengths of quarter core for each interval
a One quarter ndash one half core was submitted for assay
a One quarter ndash three quarter core was retained for archive
a It is considered that the water used for core cutting is most unlikely to have introduced sample contamination
a Sample sawing and processing for test work were undertaken according to lsquostandard industry practicersquo to maximise sample representivity
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 18
Criteria JORC Code Explanation Commentary
Sub-sampling techniques and sample preparation (continued)
Historical Reverse Circulation Drilling a Sub-sampling of reverse circulationpercussion chips was
achieved using a cyclone with cone or riffle splitter a During drilling operations the sample cyclone and splitter were
regularly cleaned to prevent down hole sample contamination a Dry sampling was achieved with the use of adequate air using a
compressor and booster where groundwater was encountered a During reverse circulation drilling completed by Broken Hill
Prospecting duplicate samples were collected at the time of drilling These were obtained by spearing the bulk material held in the PVC sacks using a spear made of 40mm diameter PVC pipe three samples were speared through the full depth of the bulk material and these were combined to form one sample
a The Thackaringa drilling database includes a total of 139 field duplicates collected during reverse circulation drilling This reflects a ratio of approximately one field duplicate in every 32 samples (31) for drill holes where duplicates were collected (31 drill holes for 4469 metres) and an overall ratio of one field duplicate in every 42 samples (24) for all reverse circulation drill holes (43 drill holes for 58015 metres)
a Statistical analysis of field duplicates collected during drilling completed by Broken Hill Prospecting (119 duplicates representing 86 of all field duplicates) considered 18 elements of which only chromium lanthanum and titanium show some bias in the duplicate samples For cobalt the confidence limits were evenly placed either side of zero and the duplicates are deemed to be representative of the original samples
2017 Reverse Circulation Drilling a Sub-sampling of reverse circulationpercussion chips was achieved
using a riffle splitter
a During drilling operations the splitter was regularly cleaned to prevent down hole sample contamination
a Dry sampling was achieved with the use of adequate air using a compressor and booster where groundwater was encountered
a During reverse circulation drilling completed by Broken Hill Prospecting duplicate samples were collected at the time of drilling These were obtained by riffle splitting the remnant bulk sample following collection of the primary split
a Field duplicate samples were collected regularly during drilling (for every 18th sample on average)
a Assay results received to date include analysis of 120 field duplicate pairs from 24 RC drill holes
a A measure of the average precision of the sampling sample preparation and assaying methods given by the mean per cent difference (MPD) assay values of the duplicate pairs is summarised below Overall the sampling and assay precision for Co Fe and S at economically significant grades is regarded as reasonable
RC Field Duplicate Pairs
Co Cut-Off Count Co MPD S MPD Fe MPD
All 120 13 16 9
200ppm 52 13 11 10
500ppm 34 12 9 9
1000ppm 20 8 7 7
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 19
Criteria JORC Code Explanation Commentary
Quality of assay data and laboratory tests
a The nature quality and appropriateness of the assaying and laboratory procedures used and whether the technique is considered partial or total
a For geophysical tools spectrometers handheld XRF instruments etc the parameters used in determining the analysis including instrument make and model reading times calibrations factors applied and their derivation etc
a Nature of quality control proce-dures adopted (eg standards blanks duplicates external laboratory checks) and whether acceptable levels of accuracy (ie lack of bias) and precision have been established
a The nature and quality of all assaying and laboratory procedures employed for samples obtained through drilling (diamond and reverse circulation) are considered lsquoindustry standardrsquo for the respective periods
a The assay techniques employed for drilling (diamond and reverse circulation) include mixed acid digestion with ICP-OES and AAS finishes These methods are considered appropriate for the targeted mineralisation and regarded as a lsquonear totalrsquo digestion technique with resistive phases not expected to affect cobalt analyses
a All samples have been processed at independent commercial laboratories including AMDEL Australian Laboratory Services (ALS) Analabs and Genalysis
a All samples from drilling completed by Broken Hill Prospecting during 2011-2012 were assayed at ALS in Orange New South Wales All samples from drilling completed by Broken Hill Prospecting during 2016-2017 were assayed at ALS Adelaide South Australia ALS is a NATA Accredited Laboratory and qualifies for JASANZ ISO90012008 quality systems ALS maintains robust internal QAQC procedures (including analysis of standards repeats and blanks)
a To monitor the accuracy of assay results from the 2017 Thackaringa drilling CRM standards were included in the assay sample stream every 24 samples (on average) for RC chips and every 30 samples for diamond core The CRM samples were purchased from Ore Research amp Exploration Pty Ltd and the results are summarised below
Cobalt Sulphur Iron
OREAS Standard Count plusmn1SD plusmn2SD plusmn3SD plusmn3SD+ plusmn1SD plusmn2SD plusmn3SD plusmn3SD+ plusmn1SD plusmn2SD plusmn3SD plusmn3SD+
160 Low S Blank (28ppm Co) 12 10 ndash ndash 2 7 ndash ndash 5 6 2 2 2
162 Medium Grade (631ppm Co) 53 37 12 3 ndash 32 18 3 ndash 14 12 13 14
163 Low Grade (230ppm Co) 40 30 8 2 ndash 7 25 7 1 2 3 2 33
165 High Grade (2445ppm Co) 13 11 2 ndash ndash 7 5 1 ndash 1 5 2 5
166 High Grade (1970ppm Co) 35 26 8 ndash 1 27 6 ndash 2 9 5 5 16
153 114 30 5 3 80 54 11 8 32 27 24 70
75 20 3 2 52 35 7 5 21 18 16 46
Cobalt CRM Standards
Internal COB assay QAQC protocols cobalt performed well with 95 standard analyses falling within two standard deviations of the certified value and 75 within one SD No systematic out-of-specification trends were identified and there was no discernible tendency for a particular Co standard to preferentially assay either higher or lower than the certified Co concentration
Cobalt Blanks
A number of blanks were also submitted with the RC chip and diamond core samples mdash the OREAS160 CRM is essentially a low-sulphide blank with respect to cobalt (28ppm) and the results of assay of this standard are summarised in Table 1 In addition five quartz sand blanks were submitted bracketing very pyrite-rich intervals in diamond drill holes 17THD06 and 17THD07 Overall the quartz sand blanks returned a maximum of 69ppm Co 004 S and 065 Fe which are regarded as similar to background values and any contamination during sample preparation at the assay laboratory is likely to be immaterial to the final results
Based on the assay of standards and blanks with 95 of the Co results falling within two standard deviations of the certified value it is concluded that the assay results for Co are likely to be representative for the material submitted with no additional source of inaccuracy or bias identified
Sulphur CRM Standards
sulphur was reasonably well-performed with 87 of the total 153 standard analyses falling within two standard deviations of the certified value and 95 within 3SD
Iron CRM Standards
Iron analysis of standards showed poor accuracy with a tendency to assay low mdash 46 of the assays fall outside of 3 SD typically but not exclusively lower than the certified value
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 20
Criteria JORC Code Explanation Commentary
Verification of sampling and assaying
a The verification of significant intersections by either inde-pendent or alternative company personnel
a The use of twinned holes
a Documentation of primary data data entry procedures data verification data storage (physical and electronic) protocols
a Discuss any adjustment to assay data
a Historical drilling intersections were internally verified by personnel employed by previous explorers including CRAE Pty Limited Central Austin Pty Limited and Hunter Resources Broken Hill Prospecting has completed a systematic review of the related data
a The Thackaringa drilling database exists in electronic form as a Microsoft Access database Information related to individual drill holes is stored in digital files as extracted from historical reports (typically including location plan section logs photos surveys assays and petrology)
a Historical drilling data available in electronic form has been re-formatted and imported into the drilling database
a Quantitative historical drilling data including assays have been captured electronically during systematic data compilation and validation completed by Broken Hill Prospecting
a Samples returning assays below detection limits are assigned half detection limit values in the database
a All significant intersections are verified by the Companyrsquos Exploration Manager and independent geological consultant
Location of data points
a Accuracy and quality of surveys used to locate drill holes (collar and down-hole surveys) trenches mine workings and other locations used in Mineral Resource estimation
a Specification of the grid system used
a Quality and adequacy of topographic control
a Historical drill collars have been relocated and surveyed using a differential GPS (DGPS) In the instances where no collar could be located the position has been derived from georeferenced historical plans
a During systematic data validation completed in 2016 three drill holes at Big Hill were found to be incorrectly located One collar was located and surveyed by GPS and two were digitised from georeferenced historical plans (reported to the nearest metre) as the collars had been destroyed These corrections were captured in the Big Hill Mineral Resource estimate
a Down hole surveys using digital cameras were completed on all post 2000 drilling Down hole surveys for some earlier drilling were estimated from hole trace and section data where raw survey data was not reported
a All 2017 Thackaringa drill hole collars were located and surveyed with DGPS by an independent surveyor with reported accuracy of plusmn005m in horizontal and vertical measurement
a Downhole surveys using digital cameras were completed on all 2017 drill-holes
a All data is recorded in the GDA94 datum UTM Zone 54 (MGA54)
a 3D validation of drilling data has been completed by independent geological consultants to support detailed geological modelling in Microminetrade software
a The quality of topographic control is deemed adequate in consideration of the results presented in this release
Data spacing and distribution
a Data spacing for reporting of Exploration Results
a Whether the data spacing and distribution is sufficient to estab-lish the degree of geological and grade continuity appropriate for the Mineral Resource and Ore Reserve estimation procedure(s) and classifications applied
a Whether sample compositing has been applied
a The data density of existing drill holes at Thackaringa has been materially increased by the 2017 drilling program which was undertaken primarily to undertake infill drilling
a Detailed geological mapping supported by drill-hole data of sufficient spacing and distribution to establish a 3D geological model
a The level of geological and grade continuity is appropriate for the Mineral Resource estimation methodologies used and the classifications applied (being wholly Inferred Mineral Resources) Note that a recalculation of the Mineral Resource using 2017 drilling and assay data will commence in mid-2017
a No sample compositing has been applied to reported intersections
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 21
Criteria JORC Code Explanation Commentary
Orientation of data in relation to geological structure
a Whether the orientation of sampling achieves unbiased sampling of possible structures and the extent to which this is known considering the deposit type
a If the relationship between the drilling orientation and the orientation of key mineralised structures is considered to have introduced a sampling bias this should be assessed and reported if material
a The 2017 drill holes at the Thackaringa project were typically angled at -500 or -600 to the horizontal and drilled perpendicular to the mineralised trend with drilling orientations adjusted along strike to accommodate folded geological sequences
a Mineralisation at the Big Hill and Railway prospects is steeply dipping and consequently mineralised intersections will be greater than true width At Pyrite Hill mineralisation is gently dipping and mineralised intersections will be close to true width
a The drilling orientation is not considered to have introduced a sampling bias on assessment of the current geological interpretation
Sample security
a The measures taken to ensure sample security
a Sample security procedures are considered to be lsquoindustry standardrsquo for the respective periods
a Following recent drilling completed by BPL samples were trucked by an independent courier directly from Broken Hill to ALS Adelaide
a BPL consider that risks associated with sample security are limited given the nature of the targeted mineralisation
Audits or reviews
a The results of any audits or reviews of sampling techniques and data
a In late 2016 an independent validation of the Thackaringa drilling database was completed
a The data validation process consisted of systematic review of drilling data (collars assays and surveys) for identification of transcription errors
a Following review historical drill hole locations were also validated against georeferenced historical maps to confirm their location
a Three (3) drill holes at Big Hill were found to be incorrectly located One collar was located and surveyed by GPS and two were digitised from georeferenced historical plans (reported to the nearest metre) as the collars had been destroyed These corrections were captured in the Big Hill Mineral Resource estimate
a Total depths for all holes were checked against original reports
a Final 3D validation of drilling data has been completed by independent geological consultants to support detailed geological modelling in Microminetrade software
a Audits and reviews of QAQC results and procedures are further described in preceding sections of this table including Quality of assay data and laboratory tests Sub-sampling techniques and sample preparation and Logging
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 22
Section 2 Reporting of Exploration Results(Criteria listed in the preceding section also apply to this section)
Criteria JORC Code Explanation Commentary
Mineral tenement and land tenure status
a Type reference namenumber location and ownership including agreements or material issues with third parties such as joint ventures partnerships overriding royalties native title interests historical sites wilderness or national park and environmental settings
a The security of the tenure held at the time of reporting along with any known impediments to obtaining a licence to operate in the area
a The Thackaringa Cobalt project is located approximately 25 kilometres west-southwest of Broken Hill and comprises four tenements with a total area of 63 km2
Tenement
Registered amp Beneficial Holder Minerals Grant Date Expiry Date
Annual Expenditure
Commit-ment
EL6622 Broken Hill Prospecting Limited (BPL)
Group 1 30082006 29082017 $47000
EL 8143 BPL Group 1 26072013 26072017 $14000
ML86 BPL Cobalt iron nickel platinum sulphur
05111975 04112017 $75000
ML87 BPL Cobalt iron nickel platinum sulphur
05111975 04112017 $75000
a The project tenure is subject to a Farm-In agreement between Cobalt Blue Holdings Limited (COB) and Broken Hill Prospecting Limited (BPL) The nature of this agreement is detailed in the COB Replacement Prospectus (as released 4 January 2017)
a The nearest residence (Thackaringa Station) is located approxi-mately three kilometres west of EL6622
a EL6622 is intersected by the Transcontinental Railway the Barrier Highway is located the north of the licence boundaries
a The majority of the project tenure is covered by Western Lands Lease which is considered to extinguish native title interest However Native Title Determination NC9732 (Barkandji Traditional Owners 8) is current over the area and may be relevant to Crown Land parcels (eg public roads) within the project area
a The project tenure is more than 90 kilometres from the nearest National Park and or Wilderness Area (Kinchega National Park) and approximately 20 kilometres south of the nearest Water Supply Reserve (Umberumberka Reservoir Water Supply Reserve)
a The Company is not aware of any impediments to obtaining a licence to operate in the area
Exploration done by other parties
a Acknowledgment and appraisal of exploration by other parties
a A detailed and complete record of all exploration activities undertaken prior to the BPL 2016 drilling program is appended to the JORC Table 1 which forms part of the Cobalt Blue Prospectus Document available on the COB website
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 23
Criteria JORC Code Explanation Commentary
Geology a Deposit type geological setting and style of mineralisation
Regional Geological Setting a The Thackaringa project is located in a deformed and metamor-
phosed Proterozoic supracrustal succession named the Willyama Supergroup which crops out as several inliers in western New South Wales including the Broken Hill Block (Willis et al 1982)
a Exploration by BPL Limited has been focused on the discovery of cobaltiferous pyrite deposits and Broken Hill type base-metal mineralisation both of which are known from historical exploration in the district
a The project area covers portions of the Broken Hill and Thackaringa group successions which host the majority of mineralisation in the region including the Broken Hill base-metal deposit The Sundown Group suite is also present The extensive sequence of quartz-albite-plagioclase rock that hosts the cobaltiferous pyrite mineralisation is interpreted as belonging to the Himalaya Formation which is stratigraphically at the top of the Thackaringa Group
Local Geological Setting a The oldest rocks in the region belong to the Curnamona Craton
which outcrops on the Broken Hill and Euriowie blocks a The overlying Proterozoic rocks have been broadly subdivided
into three major groupings of which the oldest groups are the highly deformed metasediments and igneous derived rocks of the Thackaringa and Broken Hill groups They comprise a major part of the Willyama Supergroup and host the giant Broken Hill massive Pb-Zn-Ag sulphide ore body EL6622 is within the Broken Hill block of the Curnamona Craton
Mineralisation Style a The Thackaringa Mineral deposits (Pyrite Hill Big Hill and Railway)
are characterised by large tonnage cobaltiferous-pyrite minerali-sation hosted within siliceous albitic gneisses and schists of the Himalaya Formation
a Cobalt mineralisation exists within stratabound pyritic horizons where cobalt is present within the pyrite lattice Mineralogical studies have indicated the majority of cobalt (~85) is found in solid solution with primary pyrite (Henley 1998)
a A strong correlation between pyrite content and cobalt grade is observed
a The regional geological setting indicates additional mineralisation targets including
a Stratiform Broken Hill Type (BHT) Copper-Lead-Zinc-Silver deposits
a Copper-rich BHT deposits a Stratiform to stratabound Copper-Cobalt-Gold deposits a Epigenetic Gold and Base metal deposits
Drill hole Information
a A summary of all information mat- erial to the understanding of the exploration results including a tab- ulation of the following information for all Material drill holes
a easting and northing of the drill hole collar
a elevation or RL (Reduced Level ndash elevation above sea level in metres) of the drill hole collar
a dip and azimuth of the hole
a down hole length and interception depth
a See drill holle summaries below
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 24
Drill hole summaries
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
17THD01 Pyrite Hill 1242 MGA54 518382 6449551 28906 -40 222 DDH1
17THD02 Pyrite Hill 1497 MGA54 518475 6449445 29054 -40 258 DDH1
17THD03 Pyrite Hill 785 MGA54 518370 6449190 30328 -40 2851 DDH1
17THD04 Big Hill 1198 MGA54 521078 6449589 27841 -45 1551 DDH1
17THD05 Big Hill 995 MGA54 521669 6449889 2785 -40 131 DDH1
17THD06 Railway 1655 MGA54 521970 6450705 2872 -45 128 DDH1
17THD07 Railway 2746 MGA54 522569 6451282 27067 -45 1565 DDH1
17THD08 Railway 1325 MGA54 522784 6451280 268881 -45 326 DDH1
17THD09 Railway 1205 MGA54 522905 6451511 278471 -40 1525 DDH1
17THD10 Railway 842 MGA54 522992 6451569 279779 -45 130 DDH1
17THD11 Railway 1115 MGA54 523109 6451682 280847 -40 1605 DDH1
17THD12 Railway 1265 MGA54 522796 6451419 272936 -40 14075 DDH1
17THD13 Railway 1055 MGA54 522836 6451456 276747 -40 1385 DDH1
17THD14 Pyrite Hill 99 MGA54 518375 6449089 29425 -60 285 DDH1
17THR001 Railway 156 MGA54 522615 6451277 267561 -60 120 RC5
17THR002 Railway 160 MGA54 522573 6451299 268511 -60 120 RC5
17THR003 Railway 96 MGA54 522124 6450868 27739 -60 130 RC5
17THR004 Railway 150 MGA54 522387 6451319 271453 -60 120 RC5
17THR005 Railway 72 MGA54 522024 6450783 282154 -60 120 RC5
17THR006 Railway 114 MGA54 522049 6450780 28401 -58 125 RC5
17THR007 Railway 180 MGA54 521965 6450699 286585 -59 125 RC5
17THR008 Railway 132 MGA54 521917 6450562 291682 -56 105 RC5
17THR009 Railway 120 MGA54 521906 6450496 292751 -58 105 RC5
17THR010 Railway 72 MGA54 521959 6450398 286445 -56 285 RC5
17THR011 Railway 126 MGA54 522302 6451169 276812 -56 120 RC5
17THR012 Railway 180 MGA54 522440 6451304 274931 -58 173 RC5
17THR013 Big Hill 102 MGA54 521750 6449942 28489 -60 1305 RC5
17THR014 Big Hill 104 MGA54 521628 6449796 277545 -53 130 RC5
17THR015 Big Hill 108 MGA54 521793 6449918 284847 -58 310 RC5
17THR016 Pyrite Hill 138 MGA54 518446 6449209 290391 -57 283 RC5
17THR017 Pyrite Hill 120 MGA54 518449 6449263 293147 -56 2815 RC5
17THR018 Pyrite Hill 78 MGA54 518027 6449806 289567 -60 222 RC5
17THR019 Pyrite Hill 72 MGA54 518105 6449754 287701 -55 222 RC5
17THR020 Pyrite Hill 66 MGA54 518166 6449695 288685 -60 222 RC5
17THR021 Pyrite Hill 78 MGA54 518183 6449717 286007 -60 222 RC5
17THR022 Pyrite Hill 156 MGA54 518510 6449306 28682 -55 281 RC5
17THR023 Pyrite Hill 150 MGA54 518506 6449377 289481 -57 2645 RC5
17THR024 Pyrite Hill 150 MGA54 518457 6449498 288137 -595 2285 RC5
17THR025 Pyrite Hill 114 MGA54 518311 6449609 287463 -60 222 RC5
17THR026 Pyrite Hill 114 MGA54 518268 6449681 284164 -60 222 RC5
17THR027 Pyrite Hill 72 MGA54 518243 6449646 287176 -60 222 RC5
17THR028 Railway 150 MGA54 522457 6451167 300659 -60 350 RC5
17THR029 Railway 162 MGA54 522482 6451084 295964 -60 175 RC5
17THR030 Railway 138 MGA54 522783 6451423 270814 -55 140 RC5
17THR031 Railway 120 MGA54 522945 6451566 27619 -55 145 RC5
17THR032 Railway 132 MGA54 522819 6451473 273712 -53 140 RC5
17THR033 Railway 120 MGA54 522501 6451315 26963 -60 175 RC5
17THR034 Railway 132 MGA54 522321 6451214 275947 -55 127 RC5
17THR035 Railway 156 MGA54 522259 6451120 275749 -552 130 RC5
17THR036 Railway 92 MGA54 522186 6450998 275339 -612 130 RC5
17THR037 Railway 126 MGA54 522148 6450941 274202 -55 126 RC5
17THR038 Railway 168 MGA54 521927 6450619 289555 -55 108 RC5
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 25
Historic down-hole information
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
67TH01 Pyrite Hill 3042 MGA94_54 518564805 644946003 280643 -55 2606 DDH1
70TH02 Pyrite Hill 1486 MGA94_54 51827242 644968054 28408 -61 2186 DDH1
70TH03 Pyrite Hill 1414 MGA94_54 51844985 644921188 28981 -62 2836 DDH1
70BH01 Big Hill 1027 MGA94_54 52085056 64493085 28456 -47 3186 DDH1
70BH02 Big Hill 1039 MGA94_54 52078612 64492644 2801 -50 3186 DDH1
80PYH13 Pyrite Hill 77 MGA94_54 5183582 64490377 29035 -50 2807 DDH1
80PYH14 Pyrite Hill 3003 MGA94_54 51866118 644928762 27796 -60 2807 DDH1
80PYH03 Pyrite Hill 35 MGA94_54 5182515 64495699 2994 -60 2207 PDDH2 2280BGH09 Big Hill 1005 MGA94_54 52065743 644929252 27280 -50 1447 DDH1
80PYH01 Pyrite Hill 2453 MGA94_54 5182462 64495657 3011 -60 2027 PDDH2 680PYH02 Pyrite Hill 513 MGA94_54 5182607 64495742 2976 -60 2207 PDDH2 335880PYH04 Pyrite Hill 55 MGA94_54 51836655 644923174 30834 -60 2957 PDDH2 38780PYH05 Pyrite Hill 936 MGA94_54 51822697 644967819 28518 -49 2227 PDDH2 1880PYH06 Pyrite Hill 855 MGA94_54 51816348 64497573 28373 -544 2227 PDDH2 1880PYH07 Pyrite Hill 945 MGA94_54 51808406 644981836 28516 -55 2227 PDDH2 1280PYH08 Pyrite Hill 110 MGA94_54 51800954 644988543 28614 -60 2227 PDDH2 880PYH09 Pyrite Hill 1005 MGA94_54 5179174 644993176 28655 -485 2227 PDDH2 880PYH10 Pyrite Hill 1453 MGA94_54 51839296 644956596 28553 -50 2227 PDDH2 25580PYH11 Pyrite Hill 1031 MGA94_54 51844096 644932952 29725 -50 2807 PDDH2 1880PYH12 Pyrite Hill 1095 MGA94_54 51840728 644913731 29263 -50 2807 PDDH2 4280BGH05 Big Hill 5486 MGA94_54 52095535 644953441 28893 -60 1637 RCDDH3 45598TC01 Railway 100 MGA94_54 52275006 645133973 26727 -60 1589 RC5
98TC02 Railway 100 MGA94_54 52239241 645138683 26678 -60 1409 RC5
98TC03 Big Hill 84 MGA94_54 52081645 644936939 31305 -60 1359 RC5
98TC04 Big Hill 13825 MGA94_54 52086005 644945085 30409 -60 1409 RC5
98TC05 Big Hill 70 MGA94_54 520728 644932807 28863 -50 1229 RC5
98TC06 Big Hill 108 MGA94_54 520715 6449343 28513 -60 1259 RC5
98TC07 Big Hill 120 MGA94_54 52078597 644938821 29922 -50 1339 RC5
98TC08 Big Hill 90 MGA94_54 52080195 644947781 29101 -60 1509 RC5
98TC09 Big Hill 114 MGA94_54 52082221 644946079 29625 -60 1339 RC5
98TC10 Big Hill 134 MGA94_54 521018 6449576 2815 -50 1729 RC5
98TC11 Railway 35 MGA94_54 5224112 645137396 26701 -60 1329 RC5
80BGH06 Big Hill 6804 MGA94_54 520880 6449472 299 -60 1707 RCDDH3 5880BGH08 Big Hill 797 MGA94_54 52076879 644939093 29629 -60 1267 RCDDH3 69980BGH07 Big Hill 23 MGA94_54 52113656 6449599 27411 -60 1777 RC5
93MGM01 Pyrite Hill 70 MGA94_54 51818544 644971377 28628 -60 2228 RDDH4 2493MGM02 Pyrite Hill 180 MGA94_54 51851545 644945467 28479 -60 2588 RDDH4 4811PHR01 Pyrite Hill 150 MGA94_54 51843547 644907276 28534 -60 27906 RC5
11PHR02 Pyrite Hill 198 MGA94_54 51849992 644915931 28379 -60 27906 RC5
11PHR03 Pyrite Hill 240 MGA94_54 5185603 644918961 28026 -60 27906 RC5
11PHR04 Pyrite Hill 186 MGA94_54 51852863 6449257 28403 -60 27906 RC5
11PHR05 Pyrite Hill 234 MGA94_54 51858425 644939762 28022 -60 25906 RC5
11PHR06 Pyrite Hill 180 MGA94_54 5184909 644952259 28402 -60 23406 RC5
11PHR07 Pyrite Hill 174 MGA94_54 51841347 64495929 28286 -60 21906 RC5
11PHR08 Pyrite Hill 180 MGA94_54 51834274 644965585 28288 -60 21806 RC5
11PSR01 Pyrite Hill 59 MGA94_54 51874273 6448864 26838 -60 25806 RC5
11PSR02 Pyrite Hill 132 MGA94_54 51871938 644896001 27041 -60 25506 RC5
11PSR03 Pyrite Hill 78 MGA94_54 51868699 644905535 27279 -60 25506 RC5
12BER01 Railway 157 MGA94_54 52166731 644989323 27769 -60 141 RC5
12BER02 Railway 132 MGA94_54 52121267 644969067 27353 -60 162 RC5
12BER03 Railway 151 MGA94_54 52187901 645043547 28859 -60 102 RC5
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 26
Historic down-hole information (continued)
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
12BER04 Railway 148 MGA94_54 52235392 645126835 27435 -60 131 RC5
12BER05 Railway 145 MGA94_54 52243947 645116784 29973 -60 124 RC5
12BER06 Railway 169 MGA94_54 52248137 645109135 29595 -60 118 RC5
12BER07 Railway 115 MGA94_54 52232372 645074875 27791 -60 144 RC5
12BER08 Railway 193 MGA94_54 52222079 64508118 27316 -60 129 RC5
12BER09 Railway 13975 MGA94_54 52210125 645088144 27591 -60 129 RC5
12BER10 Railway 151 MGA94_54 52195345 645071618 28449 -60 129 RC5
12BER11 Railway 193 MGA94_54 52273722 645137661 26583 -60 153 RC5
12BER12 Railway 111 MGA94_54 52290973 645151676 27736 -60 153 RC5
12BER13 Railway 205 MGA94_54 52288381 645155754 27103 -60 156 RC5
12BER14 Railway 151 MGA94_54 52312483 645163707 28836 -60 152 RC5
12BER15 Railway 109 MGA94_54 5233113 64518417 28395 -60 154 RC5
12BER16 Railway 115 MGA94_54 52299408 645159199 27595 -60 156 RC5
12BER17 Railway 1155 MGA94_54 5225165 645131494 2691 -60 153 RC5
12BER18 Railway 157 MGA94_54 52233275 645128131 27229 -60 129 RC5
12BER19 Railway 97 MGA94_54 52224055 645106715 27616 -60 135 RC5
12BER20 Railway 120 MGA94_54 52129169 644973363 27695 -60 165 RC5
13BED01 Railway 3492 MGA94_54 52248021 645109243 29601 -60 3007 DDH1
16DM01 Pyrite Hill 1616 MGA94_54 51841138 644959389 28269 -60 2155 DDH1
16DM02 Pyrite Hill 1834 MGA94_54 51852662 644926158 28418 -60 2850 DDH1
16DM03 Big Hill 1265 MGA94_54 5210371 644956749 28301 -60 1585 DDH1
16DM04 Big Hill 1054 MGA94_54 52081474 64494644 29618 -55 1285 DDH1
16DM05 Railway 2465 MGA94_54 5221037 645088187 27662 -60 1285 DDH1
16DM06 Railway 1604 MGA94_54 52291157 645151913 2785 -60 1525 DDH1
16DM07 Railway 2425 MGA94_54 52299526 645159826 27636 -60 1561 DDH1
16DM08 Railway 2585 MGA94_54 52235145 645127307 27385 -60 1309 DDH1
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 27
Down hole length and interception depth ndash 2017 holes
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THD01 34 123 89 982 94 87
including 35 41 6 1143 119 106
and 50 55 5 1311 131 115
and 81 122 41 1366 118 11
17THD02 47 134 87 911 88 92
including 48 77 29 1238 111 114
and 116 134 18 1199 110 111
17THD03 40 635 235 894 116 108
including 49 63 14 1076 143 124
17THD04 20 29 9 1033 86 872 96 24 703 88 81
17THD05 44 60 16 993 98 85
including 44 56 12 1094 109 94
71 76 5 840 64 6317THD06 39 85 46 1136 114 101
including 40 70 30 1227 122 104
and 76 85 9 1148 107 100
17THD07 15 128 113 879 81 88
including 47 55 8 1048 117 103
and 61 102 41 1452 125 123
142 152 10 704 6 102199 204 5 706 49 65
17THR001 27 63 36 1075 106 104
including 37 63 26 1280 119 115
75 84 9 755 91 139
17THR002 37 43 6 711 69 82
91 136 45 983 98 105
including 102 136 34 1190 117 118
17THR003 4 59 55 937 93 94
including 10 46 36 1212 116 110
17THR004 49 146 97 888 102 102
including 51 113 62 1051 114 113
17THR005 52 72 20 1053 128 126
including 53 63 10 1145 125 130
17THR006 14 74 60 754 86 87
including 17 44 27 1176 125 121
17THR007 5 22 17 837 0 125
including 12 19 7 1049 0 105
128 154 26 1034 114 115
including 128 146 18 1321 144 143
17THR008 37 78 41 1319 122 11217THR009 29 65 36 957 94 92including 34 60 26 1150 111 102
100 105 5 833 129 12717THR010 51 57 6 729 49 5317THR011 30 83 53 1116 12 109
including 31 62 31 1423 155 135
17THR012 50 117 67 748 75 86
including 59 67 8 1084 103 126
and 75 102 27 1120 110 113
172 177 5 725 64 64
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 28
Down hole length and interception depth ndash 2017 holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THR013 19 73 54 888 54 5
including 19 29 10 2576 88 77
17THR014 12 45 33 749 81 74
including 25 33 8 1148 113 94
17THR015 40 48 8 995 89 8117THR016 66 115 49 1096 129 134
including 66 81 15 1184 142 139
and 89 114 25 1183 134 141
17THR017 54 112 58 1383 132 128
including 56 85 29 2042 183 158
17THR018 47 63 16 1124 151 14117THR019 42 59 17 1032 107 114
17THR020 29 49 20 1067 116 115
including 29 36 7 1352 135 126
17THR021 44 64 20 1204 131 12717THR022 101 138 37 1152 107 1217THR023 91 137 46 1271 139 133
including 91 97 6 1953 187 166
and 114 125 11 2707 311 265
17THR027 29 54 25 1176 126 118
including 30 47 17 1382 141 125
Down hole length and interception depth ndash historic holes
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
11PHR02 74 114 40 875 108 116
11PHR03 150 162 12 750 83 96
11PHR03 163 190 27 732 106 119
11PHR03 206 227 21 988 117 13
11PHR04 124 172 48 1049 128 129
11PHR05 197 219 22 1138 107 133
11PHR06 104 135 31 854 83 115
11PHR06 155 171 16 1315 12 122
11PHR07 96 147 51 941 95 99
11PHR08 103 115 12 1417 139 148
11PHR08 126 144 18 1048 126 142
12BER01 115 139 24 768 72 74
12BER02 18 25 7 1062 103 93
12BER02 113 123 10 907 85 86
12BER04 41 90 49 1191 114 127
12BER04 121 126 5 1241 9 112
12BER05 33 39 6 1109 79 92
12BER05 65 76 11 721 63 66
12BER06 131 169 38 844 83 128
12BER07 38 43 5 704 10 101
12BER09 33 92 59 841 9 116
12BER11 31 62 31 738 84 126
12BER11 92 159 67 1061 10 131
12BER11 173 193 20 737 67 83
12BER12 27 81 54 1430 181 189
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 29
Down hole length and interception depth ndash historic holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
12BER13 21 42 21 761 74 91
12BER13 65 75 10 1882 204 216
12BER14 28 55 27 1013 125 129
12BER16 25 100 75 1008 106 107
12BER17 92 99 7 739 6 63
12BER18 117 157 40 1017 112 114
12BER19 34 56 22 1151 104 108
12BER19 68 75 7 780 61 6
12BER20 21 46 25 731 69 75
13BED01 266 2915 255 872 85 78
16DM01 96 147 51 851 91 86
16DM02 127 172 45 1118 138 136
16DM03 104 111 7 838 103 9
16DM04 91 99 8 887 91 84
16DM05 30 103 73 793 82 9
16DM05 199 211 12 830 251 221
16DM06 28 84 56 1280 162 167
16DM06 138 146 8 722 78 112
16DM07 35 60 25 1232 111 111
16DM07 71 104 33 1224 133 134
16DM08 76 100 24 1026 11 12
16DM08 165 177 12 921 122 126
17THD01 34 123 89 982 94 87
17THD02 47 134 87 911 88 92
17THD03 40 635 235 894 116 108
17THD04 20 29 9 1033 86 8
17THD04 72 96 24 703 88 81
17THD05 44 60 16 993 98 85
17THD05 71 76 5 840 64 63
17THD06 39 85 46 1136 114 101
17THD07 15 128 113 879 81 88
17THD07 142 152 10 704 6 102
17THD07 199 204 5 706 49 65
17THR001 27 63 36 1075 106 104
17THR001 75 84 9 755 91 139
17THR002 37 43 6 711 69 82
17THR002 91 136 45 983 98 105
17THR003 4 59 55 937 93 94
17THR004 49 146 97 888 102 102
17THR005 52 72 20 1053 128 126
17THR006 14 74 60 754 86 87
17THR007 5 22 17 837 0 125
17THR007 128 154 26 1034 114 115
17THR008 37 78 41 1319 122 112
17THR009 29 65 36 957 94 92
17THR009 100 105 5 833 129 127
17THR010 51 57 6 729 49 53
17THR011 30 83 53 1116 12 109
17THR012 50 117 67 748 75 86
17THR012 172 177 5 725 64 64
17THR013 19 73 54 888 54 5
17THR014 12 45 33 749 81 74
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 30
Down hole length and interception depth ndash historic holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THR015 40 48 8 995 89 81
17THR016 66 115 49 1096 129 134
17THR017 54 112 58 1383 132 128
17THR018 47 63 16 1124 151 141
17THR019 42 59 17 1032 32 114
17THR020 29 49 20 1067 116 115
17THR021 44 64 20 1204 131 127
17THR022 101 138 37 1152 107 12
17THR023 91 137 46 1271 139 133
17THR027 29 54 25 1176 126 118
67TH01 12344 20001 7657 979 0 0
70BH01 3962 5334 1372 3323 31 0
70BH01 6431 8443 2012 1203 95 0
70BH02 7406 8686 128 704 75 0
70TH02 78 841 61 1666 175 154
70TH02 871 1021 15 1661 8 72
70TH03 777 1295 518 1016 129 132
80BGH05 39 49 10 752 0 0
80BGH06 18 6804 5004 969 0 0
80BGH08 44 7815 3415 939 0 0
80PYH01 75 17 95 725 0 0
80PYH02 341 4825 1415 1121 0 0
80PYH03 23 35 12 711 0 0
80PYH04 3975 55 1525 735 0 0
80PYH05 367 65 283 1160 118 0
80PYH06 54 62 8 905 0 0
80PYH07 67 794 124 1113 125 0
80PYH10 4845 1374 8895 831 86 0
80PYH11 346 465 119 916 8 0
80PYH11 572 9105 3385 1239 106 0
80PYH12 302 365 63 791 102 0
80PYH12 8515 908 565 857 146 0
80PYH14 2518 2734 216 1252 131 0
93MGM02 85 160 75 941 85 0
98TC01 20 47 27 744 91 126
98TC01 48 71 23 917 119 164
98TC03 34 45 11 1480 55 6
98TC03 68 79 11 1095 43 42
98TC04 84 94 10 966 39 4
98TC04 107 133 26 771 77 82
98TC05 24 62 38 754 64 7
98TC06 66 72 6 727 104 111
98TC06 76 101 25 767 101 106
98TC07 35 46 11 1546 165 171
98TC07 61 82 21 728 91 94
98TC09 32 39 7 716 49 174
98TC09 82 107 25 732 6 67
98TC10 101 125 24 732 79 8
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 31
Criteria JORC Code Explanation Commentary
Data aggregation methods
a In reporting Exploration Results weighting averaging techniques maximum andor minimum grade truncations (eg cutting of high grades) and cut-off grades are usually Material and should be stated
a Where aggregate intercepts incorporate short lengths of high grade results and longer lengths of low grade results the procedure used for such aggregation should be stated and some typical examples of such aggregations should be shown in detail
a The assumptions used for any reporting of metal equivalent values should be clearly stated
Drilling a Drill hole intercept grades are typically reported as down-hole
length-weighted averages with any non-recovered sample within the reported intervals treated as no grade The cut-off used for selecting significant intersections is selected to reflect the overall tenor of mineralisation in most cases 500ppm cobalt
a No top cuts have been applied when calculating average grades for reported significant intersections
a No metal equivalent values are reported
Relationship between mineralis- ation widths and intercept lengths
a These relationships are particularly important in the reporting of Exploration Results
a If the geometry of the mineralisation with respect to the drillhole angle is known its nature should be reported
a If it is not known and only the down hole lengths are reported there should be a clear statement to this effect (eg lsquodown hole length true width not knownrsquo)
a Drill holes at the Thackaringa project are typically angled at 50deg or 60deg and drilled perpendicular to the mineralised trend with drilling orientations adjusted along strike to accommodate folded geological sequences
a Mineralisation at the Big Hill and Railway prospects is steeply dipping and consequently mineralised intersections will be greater than true width At Pyrite Hill mineralisation is gently dipping and mineralised intersections will be close to true width
a There is insufficient geological knowledge to accurately estimate true widths and as such all drill intersections are reported as down hole lengths
Diagrams a Appropriate maps and sections (with scales) and tabulations of intercepts should be included for any significant discovery being reported These should include but not be limited to a plan view of drill hole collar locations and appropriate sectional views
a Appropriate maps and sections are presented in the accompa-nying ASX release
Balanced reporting
a Where comprehensive reporting of all exploration results is not practicable representative reporting of both low and high grades andor widths should be practiced to avoid misleading reporting of Exploration Results
a Only mineralised drill hole intersections regarded as highly anomalous and of economic interest are reported The proportion of each hole represented by the reported intervals can be ascertained from the sum of the reported intervals divided by the total drill hole depth
a All assay results for drill holes included in the various Mineral Resource estimates have been considered and comprise results not necessarily regarded as anomalous
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 32
Criteria JORC Code Explanation Commentary
Other substantive exploration data
a Other exploration data if meaningful and material should be reported including (but not limited to) geological obser-vations geophysical survey results geochemical survey results bulk samples ndash size and method of treatment metallurgical test results bulk density groun d- water geotechnical and rock characteristics potential deleterious or contaminating substances
a No further exploration data is deemed material to the results presented in this release
Further work a The nature and scale of planned further work (eg tests for lateral extensions or depth extensions or large-scale step-out drilling)
a Diagrams clearly highlighting the areas of possible extensions including the main geological interpretations and future drilling areas provided this information is not commercially sensitive
a The nature and scale of planned further work will be determined following the completion of revised Mineral Resource estimation for the Thackaringa deposits scheduled for May 2017
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 4
Figure 2 Plan view of Railway Deposit For
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 5
Figure 3 Railway X-section along plane of 17THD07 For
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Pyrite HillThe Pyrite Hill deposit is hosted within an extensively metamorphosed pyrite-albite-quartz gneiss The deposit has a strike length of 1200m and dips moderately to the east (Figure 5)
The drilling at Pyrite Hill comprised four DD holes for a total of 451m and 12 RC holes for a total 1308m The RC program was designed to close the spacing between existing holes to allow recalculation of the Mineral Resource the DD program comprised holes to twin existing RC holes and to provide material for metallurgical testwork
Pyrite Hill results
At Pyrite Hill assays confirm the down-dip mineralisation within the host lithology Best mineralised intercepts include
a Drillhole 17THD01 ndash 89m 982ppm Co 94 S and 87 Fe from 34m drill depth
a Drillhole 17THR016 ndash 49m 1096ppm Co 129 S and 134 Fe from 66m drill depth
a Drillhole 17THR017 ndash 58m 1383ppm Co 132 S and 128 Fe from 54m drill depth and
a Drillhole 17THR021 ndash 20m 1204ppm Co 131 S and 127 Fe from 44m drill depth
Figure 4 Logging ndash Thackaringa Diamond Drilling CoresFor
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 7
Figure 5 Plan view of Pyrite Hill
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Figure 6 Pyrite Hill X-section along plane of 17THR017 For
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Big HillThe Big Hill deposit is an off-set southwestern extension of the high-grade metamorphic host at Railway The drilling at Big Hill comprised two diamond holes for a total of 219m and three RC holes for a total of 314m The RC program was designed to test the mineralisation at sparsely explored north-eastern end of the prospect at an interpreted offset fault zone between Big Hill and Railway The diamond program comprised holes to provide solid core to assist the structural interpretation of this complex hinge structure
Big Hill results
The 2017 drilling at Big Hill has discovered some structural complications at a fault zone nevertheless some of the highest-yet cobalt mineralisation was intersected in this section Best mineralised intercepts include
a Drillhole 17THR013 ndash 54m 888ppm Co 54 S and 50 Fe from 19m drill depth
Figure 7 Field Crew - RC Drill Rig - Railway Deposit
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 10
Figure 8 Plan view of Big HillFor
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Figure 9 Big Hill X-section along plane of 17THR013For
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 12
Cobalt Blue BackgroundCobalt Blue (ldquoCOBrdquo) is an exploration company focussed on green energy technology and strategic development to upgrade the existing mineral resource at the Thackaringa Cobalt Project in New South Wales This strategic metal is in strong demand for new generation batteries particularly lithium-ion batteries now being widely used in clean energy systems
COB has entered into a farm-in joint venture agreement with Broken Hill Prospecting Limited (ldquoBPLrdquo) in which COB acquired an initial 51 interest in the Thackaringa Cobalt Project COB will undertake exploration and development programs at the Thackaring Cobalt Project and subject to the achievement of milestones will acquire 100 of the Thackaringa Cobalt Project
The Thackaringa Project 23 km west of Broken Hill and 400km by rail from Port Pirie consists of four granted tenements (EL6622 EL8143 ML86 and ML87) with total area of 63 km2 The main target for exploration is well known and contains documented large tonnage cobalt bearing pyrite deposits The project area is under-explored with the vast majority of historical exploration directed at or around the outcropping pyritic cobalt deposits at Pyrite Hill and Big Hill
Potential to extend the Mineral Resource at Pyrite Hill Big Hill Railway and the other prospects is high Numerous other prospects within COBrsquos tenement package are early stage and under-explored
Looking forward we would like our shareholders to keep in touch with COB updates and related news items which we will post on our website the ASX announcements platform as well as social media such as Facebook ( ) and LinkedIn ( ) Please donrsquot hesitate to join the lsquoCOB friendsrsquo on social media and also to join our newsletter mailing list at our website
Joe KaderavekChief Executive Officerjoekaderavekcobaltblueholdingscom(02) 9966 5629
Competent Person StatementThe information in this report that relates to exploration results Mineral Resources and Targets is based on information compiled by Mr Anthony Johnston BSc (Hons) who is a Member of the Australian Institute of Mining and Metallurgy and who is a non-executive director of Cobalt Blue Holdings Limited the Chief Executive Officer of Broken Hill Prospecting Limited and the Technical Manager of the Joint Venture Mr Johnston has sufficient experience which is relevant to the style of mineralisation and type of deposits under consideration and to the activity which he is undertaking to qualify as a Competent Person as defined in the 2004 amp 2012 Edition of the ldquoAustralasian Code for Reporting of Exploration Results Mineral Resources and Ore Reservesrdquo Mr Johnston consents to the inclusion in the announcement of the matters based on his information in the form and context that the information appears
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Appendix ndash JORC Code 2012 Edition ndash Table 1 Section 1 ndash Sampling Techniques and Data(Criteria in this section apply to all succeeding sections)
Criteria JORC Code Explanation Commentary
Sampling techniques
a Nature and quality of sampling (eg cut channels random chips or specific specialised industry standard measurement tools appropriate to the minerals under investigation such as down-hole gamma sondes or handheld XRF instruments etc) These examples should not be taken as limiting the broad meaning of sampling
a Include reference to measures taken to ensure sample repre-sentivity and the appropriate calibration of any measurement tools or systems used
a Aspects of the determination of mineralisation that are Material to the Public Report
a In cases where lsquoindustry standardrsquo work has been done this would be relatively simple (eg lsquoreverse circulation drilling was used to obtain 1 m samples from which 3 kg was pulverised to produce a 30 g charge for fire assayrsquo) In other cases more explanation may be required such as where there is coarse gold that has inherent sampling problems Unusual commodities or mineralisation types (eg submarine nodules) may warrant disclosure of detailed information
Diamond Drilling (DD)Pre-1990a Diamond drilling was used to obtain core from which irregular
intervals reflecting visual mineralisation and geological logging were hand-split or sawn Samples were submitted for analysis using a mixed acid digestion and AAS methodology
Post-1990 a Diamond drilling (one drill hole) was used to obtain core from
which irregular intervals reflecting visual mineralisation and geological logging were sawn (quarter core for HQ) Samples were submitted for analysis using a mixed acid digestion and ICP-OES methodology
2016 Metallurgical Drillinga Eight HQ diameter diamond drill holes (DD) were drilled at
the Thackaringa project in late 2016 They will be used as metallurgical reference holes and to twin some of the previous reverse circulation percussion (RC) holes for QAQC and assay comparison between DD and RC There were two holes drilled at Pyrite Hill two at Big Hill and four at Railway
a Diamond drilling was used to obtain core from which regular (one-metre) intervals were sawn with
a one half core dispatched for analysis using a mixed acid digestion and ICP-AES methodology
a the other half was further sawn such that one quarter- core was sent for metallurgical test work and the other quarter-core retained for archival purposes
Historical Reverse Circulation Drilling a RC drilling was used to obtain a representative sample by means
of riffle splitting with samples submitted for analysis using the above-mentioned methodologies
a Pre-2000 drill samples were assayed for a small and variable suite of elements (sometimes only cobalt) The post-2000 drill samples (5095 samples) are all assayed by ICP-MS for a suite of 33 elements
2017 Diamond Drilling Program a This announcement summarises the results from approximately
23 of the 2017 diamond drilling program Fourteen HQ diameter diamond drill holes (DD) were assayed at the Thackaringa project They will be used as metallurgical reference holes and to twin some of the previous reverse circulation percussion (RC) holes for QAQC and assay comparison between DD and RC There were four holes drilled at Pyrite Hill two at Big Hill and 8 at Railway
a Diamond drilling (17THD01-03) was used to obtain core from which regular (one-metre) intervals were sawn with
a one half core dispatched for analysis using a mixed acid digestion and ICP-AES methodology
a the other half was retained for future metallurgical test work and archival purposes
a Diamond drilling (17THD04-14) was used to obtain core from which regular (one-metre) intervals were sawn with
a one quarter core dispatched for analysis using a mixed acid digestion and ICP-AES methodology
a the other three quarters was retained for future metallurgical test work and archival purposes
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 14
Criteria JORC Code Explanation Commentary
Sampling techniques (continued)
2017 RC drilling Program a This announcement summarises the results from approximately
23 of the 2017 RC drilling program Thirty eight (38) RC drill holes were drilled amp assayed at the Thackaringa project They will be used to infill the drill spacing of historic holes to allow a re-estimation of the existing Mineral Resource There were 12 holes drilled at Pyrite Hill three at Big Hill and 23 at Railway
a RC drilling was used to obtain a representative sample by means of riffle splitting with samples submitted for analysis using the above-mentioned methodologies
a The 2017 drill samples are all assayed by ICP-MS for a suite of 33 elements
Drilling techniques
a Drill type (eg core reverse circulation open-hole hammer rotary air blast auger Bangka sonic etc) and details (eg core diameter triple or standard tube depth of diamond tails face-sampling bit or other type whether core is oriented and if so by what method etc)
a The Thackaringa drilling database comprises a total of forty-eight (48) DD holes and eighty-one (81) RC drill holes Diamond drilling was predominantly completed with standard diameter conventional HQ and NQ utilising RC and percussion pre-collars to an average 25 metres (see Drill-hole Information for further details) Early (1960-1970) drill holes utilised HX ndash AX diameters dependent on drilling depth Reverse circulation drilling utilised standard drill-hole diameters (48rdquo-55rdquo) with a face sampling hammer
a During 2013 a single diamond drill hole (13BED01) was completed at the Railway deposit using a triple tube system with a HQ3 diameter
Year Drilling Metres
1967 1 diamond drill hole 3042
1970 4 diamond drill holes 4966
1980 18 diamond and 1 RC drill hole 171123
1993 2 diamond drill holes 250
1998 11 RC drill holes 109325
2011 11 RC drill holes 1811
2012 20 RC drill holes 287425
2013 1 diamond drill hole 3492
2016 8 diamond drill holes 14848
2017 14 diamond drill holes and 38 RC drill holes 6472
Total 48 diamond and 81 RC drill holes 1684653
a This ASX release describes assay results from seven (7) diamond drill holes and twenty-four (24) RC holes completed and assayed by April 2017 Commencement of that drilling program was reported to ASX by the company in April 2017
a Diamond drilling was completed using a triple tube system with a HQ3 diameter
a Holes were drilled at angles between 40 and 60 degrees from horizontal and the resulting core was oriented as part of the logging process
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 15
Criteria JORC Code Explanation Commentary
Drill sample recovery
a Method of recording and assessing core and chip sample recoveries and results assessed
a Measures taken to maximise sample recovery and ensure representative nature of the samples
a Whether a relationship exists between sample recovery and grade and whether sample bias may have occurred due to preferential lossgain of finecoarse material
Diamond Drilling
a Historical core recoveries were accurately quantified through measurement of actual core recovered versus drilled intervals
a Historical diamond drilling employed conventional drilling techniques while diamond drilling completed by Broken Hill Prospecting utilised a triple-tube system to maximise sample recovery
a Core recovery of 997 was achieved during completion of drill hole 13BED01
a Core recovery of 98 was achieved during the 2016 diamond drilling program
a Core recovery of 933 was achieved during the 2017 diamond drilling program
a No relationship between sample recovery and grade has been observed
Reverse Circulation Drilling
a Reverse circulation sample recoveries were visually estimated during drilling programs Where the estimated sample recovery was below 100 this was recorded in field logs by means of qualitative observation
a Reverse circulation drilling employed adequate air (using a compressor and booster) to maximise sample recovery
a No relationship between sample recovery and grade has been observed
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 16
Criteria JORC Code Explanation Commentary
Logging a Whether core and chip samples have been geologically and geotechnically logged to a level of detail to support appropriate Mineral Resource estimation mining studies and metallurgical studies
a Whether logging is qualitative or quantitative in nature Core (or costean channel etc) photography
a The total length and percentage of the relevant intersections logged
a A qualified geoscientist has logged all reported drill holes in their entirety This logging has been completed to a level of detail considered to accurately support Mineral Resource estimation and metallurgical studies The parameters logged include lithology alteration mineralisation and oxidation These parameters are both qualitative and quantitative in nature
a Diamond drilling completed in 2017 by BPL has been subject to geotechnical logging with parameters recorded including rock-quality designation (RQD) fracture frequency and hardness
a During 2013 a considerable amount of historical drilling was re-logged through review of available core stored at Broken Hill as well the re-interpretation of historical reports where core or percussion samples no longer exist A total of eight (8) diamond drill holes and sixteen (16) diamond drill holes with pre-collars were re-logged as detailed below
Hole ID Deposit Max Depth Hole TypePre-Collar Depth (m)
67TH01 Pyrite Hill 3042 DDH1 ndash
70TH02 Pyrite Hill 1486 DDH1 ndash
70TH03 Pyrite Hill 1414 DDH1 ndash
70BH01 Big Hill 1027 DDH1 ndash
70BH02 Big Hill 1039 DDH1 ndash
80PYH13 Pyrite Hill 77 DDH1 ndash
80PYH14 Pyrite Hill 3003 DDH1 ndash
80BGH09 Big Hill 1005 DDH1 ndash
80PYH01 Pyrite Hill 2453 PDDH2 6
80PYH02 Pyrite Hill 513 PDDH2 3358
80PYH04 Pyrite Hill 55 PDDH2 387
80PYH05 Pyrite Hill 936 PDDH2 18
80PYH06 Pyrite Hill 855 PDDH2 18
80PYH07 Pyrite Hill 945 PDDH2 12
80PYH08 Pyrite Hill 110 PDDH2 8
80PYH09 Pyrite Hill 1005 PDDH2 8
80PYH10 Pyrite Hill 1453 PDDH2 255
80PYH11 Pyrite Hill 1031 PDDH2 18
80PYH12 Pyrite Hill 1095 PDDH2 42
80BGH05 Big Hill 5486 RCDDH3 455
80BGH06 Big Hill 6804 RCDDH3 58
80BGH08 Big Hill 797 RCDDH3 699
93MGM01 Pyrite Hill 70 RDDH4 24
93MGM02 Pyrite Hill 180 RDDH4 48
1 Diamond drill hole2 Diamond drill hole with percussion pre-collar3 Diamond drill hole with reverse circulation pre-collar4 Diamond drill hole with rotary air blast pre-collar
a Litho-geochemistry has been used to verify geological logging where available for drilling completed by Broken Hill Prospecting post 2010
a Representative reference trays of chips from reverse circulation drilling completed post 2010 have been retained by Broken Hill Prospecting
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 17
Criteria JORC Code Explanation Commentary
Sub-sampling techniques and sample preparation
a If core whether cut or sawn and whether quarter half or all core taken
a If non-core whether riffled tube sampled rotary split etc and whether sampled wet or dry
a For all sample types the nature quality and appropriateness of the sample preparation technique
a Quality control procedures adopted for all sub-sampling stages to maximise representivity of samples
a Measures taken to ensure that the sampling is representative of the in situ material collected including for instance results for field duplicatesecond-half sampling
a Whether sample sizes are appropriate to the grain size of the material being sampled
Diamond Drilling (DD)Pre-1990a Core samples were hand-split or sawn with re-logging of available
historical core (see Logging) indicating a 7030 (retainedassayed) split was typical The variation of sample ratios noted are consid-ered consistent with the sub-sampling technique (hand-splitting)
a No second half samples were submitted for analysis a It is considered water used for core cutting is unprocessed and
unlikely to have introduced sample contamination a Procedures relating to the definition of the line of cutting or splitting
are not available It is expected that lsquostandard industry practicersquo for the period was applied to maximize sample representivity
Post-1990 a NQ drilling core was sawn with half core submitted for assay a HQ drilling core was sawn with quarter core submitted for assay a No second half samples were submitted for analysis a It is considered water used for core cutting is unprocessed and
unlikely to have introduced sample contamination a Procedures relating to the definition of the line of cutting or splitting
are not available It is expected that lsquostandard industry practicersquo for the period was applied to maximise sample representivity
2016 Metallurgical Drilling a All HQ drill core was sawn into halves with each half then re-sawn
to provide 4 lengths of quarter core for each interval a One half core was submitted for assay a One quarter core was submitted for metallurgical test work a One quarter core was retained for archive a It is considered that the water used for core cutting is most
unlikely to have introduced sample contamination a Sample sawing and processing for test work were undertaken
according to lsquostandard industry practicersquo to maximise sample representivity
2017 Diamond Drilling a All HQ drill core was sawn into halves with each half then re-sawn to
provide 4 lengths of quarter core for each interval
a One quarter ndash one half core was submitted for assay
a One quarter ndash three quarter core was retained for archive
a It is considered that the water used for core cutting is most unlikely to have introduced sample contamination
a Sample sawing and processing for test work were undertaken according to lsquostandard industry practicersquo to maximise sample representivity
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 18
Criteria JORC Code Explanation Commentary
Sub-sampling techniques and sample preparation (continued)
Historical Reverse Circulation Drilling a Sub-sampling of reverse circulationpercussion chips was
achieved using a cyclone with cone or riffle splitter a During drilling operations the sample cyclone and splitter were
regularly cleaned to prevent down hole sample contamination a Dry sampling was achieved with the use of adequate air using a
compressor and booster where groundwater was encountered a During reverse circulation drilling completed by Broken Hill
Prospecting duplicate samples were collected at the time of drilling These were obtained by spearing the bulk material held in the PVC sacks using a spear made of 40mm diameter PVC pipe three samples were speared through the full depth of the bulk material and these were combined to form one sample
a The Thackaringa drilling database includes a total of 139 field duplicates collected during reverse circulation drilling This reflects a ratio of approximately one field duplicate in every 32 samples (31) for drill holes where duplicates were collected (31 drill holes for 4469 metres) and an overall ratio of one field duplicate in every 42 samples (24) for all reverse circulation drill holes (43 drill holes for 58015 metres)
a Statistical analysis of field duplicates collected during drilling completed by Broken Hill Prospecting (119 duplicates representing 86 of all field duplicates) considered 18 elements of which only chromium lanthanum and titanium show some bias in the duplicate samples For cobalt the confidence limits were evenly placed either side of zero and the duplicates are deemed to be representative of the original samples
2017 Reverse Circulation Drilling a Sub-sampling of reverse circulationpercussion chips was achieved
using a riffle splitter
a During drilling operations the splitter was regularly cleaned to prevent down hole sample contamination
a Dry sampling was achieved with the use of adequate air using a compressor and booster where groundwater was encountered
a During reverse circulation drilling completed by Broken Hill Prospecting duplicate samples were collected at the time of drilling These were obtained by riffle splitting the remnant bulk sample following collection of the primary split
a Field duplicate samples were collected regularly during drilling (for every 18th sample on average)
a Assay results received to date include analysis of 120 field duplicate pairs from 24 RC drill holes
a A measure of the average precision of the sampling sample preparation and assaying methods given by the mean per cent difference (MPD) assay values of the duplicate pairs is summarised below Overall the sampling and assay precision for Co Fe and S at economically significant grades is regarded as reasonable
RC Field Duplicate Pairs
Co Cut-Off Count Co MPD S MPD Fe MPD
All 120 13 16 9
200ppm 52 13 11 10
500ppm 34 12 9 9
1000ppm 20 8 7 7
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 19
Criteria JORC Code Explanation Commentary
Quality of assay data and laboratory tests
a The nature quality and appropriateness of the assaying and laboratory procedures used and whether the technique is considered partial or total
a For geophysical tools spectrometers handheld XRF instruments etc the parameters used in determining the analysis including instrument make and model reading times calibrations factors applied and their derivation etc
a Nature of quality control proce-dures adopted (eg standards blanks duplicates external laboratory checks) and whether acceptable levels of accuracy (ie lack of bias) and precision have been established
a The nature and quality of all assaying and laboratory procedures employed for samples obtained through drilling (diamond and reverse circulation) are considered lsquoindustry standardrsquo for the respective periods
a The assay techniques employed for drilling (diamond and reverse circulation) include mixed acid digestion with ICP-OES and AAS finishes These methods are considered appropriate for the targeted mineralisation and regarded as a lsquonear totalrsquo digestion technique with resistive phases not expected to affect cobalt analyses
a All samples have been processed at independent commercial laboratories including AMDEL Australian Laboratory Services (ALS) Analabs and Genalysis
a All samples from drilling completed by Broken Hill Prospecting during 2011-2012 were assayed at ALS in Orange New South Wales All samples from drilling completed by Broken Hill Prospecting during 2016-2017 were assayed at ALS Adelaide South Australia ALS is a NATA Accredited Laboratory and qualifies for JASANZ ISO90012008 quality systems ALS maintains robust internal QAQC procedures (including analysis of standards repeats and blanks)
a To monitor the accuracy of assay results from the 2017 Thackaringa drilling CRM standards were included in the assay sample stream every 24 samples (on average) for RC chips and every 30 samples for diamond core The CRM samples were purchased from Ore Research amp Exploration Pty Ltd and the results are summarised below
Cobalt Sulphur Iron
OREAS Standard Count plusmn1SD plusmn2SD plusmn3SD plusmn3SD+ plusmn1SD plusmn2SD plusmn3SD plusmn3SD+ plusmn1SD plusmn2SD plusmn3SD plusmn3SD+
160 Low S Blank (28ppm Co) 12 10 ndash ndash 2 7 ndash ndash 5 6 2 2 2
162 Medium Grade (631ppm Co) 53 37 12 3 ndash 32 18 3 ndash 14 12 13 14
163 Low Grade (230ppm Co) 40 30 8 2 ndash 7 25 7 1 2 3 2 33
165 High Grade (2445ppm Co) 13 11 2 ndash ndash 7 5 1 ndash 1 5 2 5
166 High Grade (1970ppm Co) 35 26 8 ndash 1 27 6 ndash 2 9 5 5 16
153 114 30 5 3 80 54 11 8 32 27 24 70
75 20 3 2 52 35 7 5 21 18 16 46
Cobalt CRM Standards
Internal COB assay QAQC protocols cobalt performed well with 95 standard analyses falling within two standard deviations of the certified value and 75 within one SD No systematic out-of-specification trends were identified and there was no discernible tendency for a particular Co standard to preferentially assay either higher or lower than the certified Co concentration
Cobalt Blanks
A number of blanks were also submitted with the RC chip and diamond core samples mdash the OREAS160 CRM is essentially a low-sulphide blank with respect to cobalt (28ppm) and the results of assay of this standard are summarised in Table 1 In addition five quartz sand blanks were submitted bracketing very pyrite-rich intervals in diamond drill holes 17THD06 and 17THD07 Overall the quartz sand blanks returned a maximum of 69ppm Co 004 S and 065 Fe which are regarded as similar to background values and any contamination during sample preparation at the assay laboratory is likely to be immaterial to the final results
Based on the assay of standards and blanks with 95 of the Co results falling within two standard deviations of the certified value it is concluded that the assay results for Co are likely to be representative for the material submitted with no additional source of inaccuracy or bias identified
Sulphur CRM Standards
sulphur was reasonably well-performed with 87 of the total 153 standard analyses falling within two standard deviations of the certified value and 95 within 3SD
Iron CRM Standards
Iron analysis of standards showed poor accuracy with a tendency to assay low mdash 46 of the assays fall outside of 3 SD typically but not exclusively lower than the certified value
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 20
Criteria JORC Code Explanation Commentary
Verification of sampling and assaying
a The verification of significant intersections by either inde-pendent or alternative company personnel
a The use of twinned holes
a Documentation of primary data data entry procedures data verification data storage (physical and electronic) protocols
a Discuss any adjustment to assay data
a Historical drilling intersections were internally verified by personnel employed by previous explorers including CRAE Pty Limited Central Austin Pty Limited and Hunter Resources Broken Hill Prospecting has completed a systematic review of the related data
a The Thackaringa drilling database exists in electronic form as a Microsoft Access database Information related to individual drill holes is stored in digital files as extracted from historical reports (typically including location plan section logs photos surveys assays and petrology)
a Historical drilling data available in electronic form has been re-formatted and imported into the drilling database
a Quantitative historical drilling data including assays have been captured electronically during systematic data compilation and validation completed by Broken Hill Prospecting
a Samples returning assays below detection limits are assigned half detection limit values in the database
a All significant intersections are verified by the Companyrsquos Exploration Manager and independent geological consultant
Location of data points
a Accuracy and quality of surveys used to locate drill holes (collar and down-hole surveys) trenches mine workings and other locations used in Mineral Resource estimation
a Specification of the grid system used
a Quality and adequacy of topographic control
a Historical drill collars have been relocated and surveyed using a differential GPS (DGPS) In the instances where no collar could be located the position has been derived from georeferenced historical plans
a During systematic data validation completed in 2016 three drill holes at Big Hill were found to be incorrectly located One collar was located and surveyed by GPS and two were digitised from georeferenced historical plans (reported to the nearest metre) as the collars had been destroyed These corrections were captured in the Big Hill Mineral Resource estimate
a Down hole surveys using digital cameras were completed on all post 2000 drilling Down hole surveys for some earlier drilling were estimated from hole trace and section data where raw survey data was not reported
a All 2017 Thackaringa drill hole collars were located and surveyed with DGPS by an independent surveyor with reported accuracy of plusmn005m in horizontal and vertical measurement
a Downhole surveys using digital cameras were completed on all 2017 drill-holes
a All data is recorded in the GDA94 datum UTM Zone 54 (MGA54)
a 3D validation of drilling data has been completed by independent geological consultants to support detailed geological modelling in Microminetrade software
a The quality of topographic control is deemed adequate in consideration of the results presented in this release
Data spacing and distribution
a Data spacing for reporting of Exploration Results
a Whether the data spacing and distribution is sufficient to estab-lish the degree of geological and grade continuity appropriate for the Mineral Resource and Ore Reserve estimation procedure(s) and classifications applied
a Whether sample compositing has been applied
a The data density of existing drill holes at Thackaringa has been materially increased by the 2017 drilling program which was undertaken primarily to undertake infill drilling
a Detailed geological mapping supported by drill-hole data of sufficient spacing and distribution to establish a 3D geological model
a The level of geological and grade continuity is appropriate for the Mineral Resource estimation methodologies used and the classifications applied (being wholly Inferred Mineral Resources) Note that a recalculation of the Mineral Resource using 2017 drilling and assay data will commence in mid-2017
a No sample compositing has been applied to reported intersections
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 21
Criteria JORC Code Explanation Commentary
Orientation of data in relation to geological structure
a Whether the orientation of sampling achieves unbiased sampling of possible structures and the extent to which this is known considering the deposit type
a If the relationship between the drilling orientation and the orientation of key mineralised structures is considered to have introduced a sampling bias this should be assessed and reported if material
a The 2017 drill holes at the Thackaringa project were typically angled at -500 or -600 to the horizontal and drilled perpendicular to the mineralised trend with drilling orientations adjusted along strike to accommodate folded geological sequences
a Mineralisation at the Big Hill and Railway prospects is steeply dipping and consequently mineralised intersections will be greater than true width At Pyrite Hill mineralisation is gently dipping and mineralised intersections will be close to true width
a The drilling orientation is not considered to have introduced a sampling bias on assessment of the current geological interpretation
Sample security
a The measures taken to ensure sample security
a Sample security procedures are considered to be lsquoindustry standardrsquo for the respective periods
a Following recent drilling completed by BPL samples were trucked by an independent courier directly from Broken Hill to ALS Adelaide
a BPL consider that risks associated with sample security are limited given the nature of the targeted mineralisation
Audits or reviews
a The results of any audits or reviews of sampling techniques and data
a In late 2016 an independent validation of the Thackaringa drilling database was completed
a The data validation process consisted of systematic review of drilling data (collars assays and surveys) for identification of transcription errors
a Following review historical drill hole locations were also validated against georeferenced historical maps to confirm their location
a Three (3) drill holes at Big Hill were found to be incorrectly located One collar was located and surveyed by GPS and two were digitised from georeferenced historical plans (reported to the nearest metre) as the collars had been destroyed These corrections were captured in the Big Hill Mineral Resource estimate
a Total depths for all holes were checked against original reports
a Final 3D validation of drilling data has been completed by independent geological consultants to support detailed geological modelling in Microminetrade software
a Audits and reviews of QAQC results and procedures are further described in preceding sections of this table including Quality of assay data and laboratory tests Sub-sampling techniques and sample preparation and Logging
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 22
Section 2 Reporting of Exploration Results(Criteria listed in the preceding section also apply to this section)
Criteria JORC Code Explanation Commentary
Mineral tenement and land tenure status
a Type reference namenumber location and ownership including agreements or material issues with third parties such as joint ventures partnerships overriding royalties native title interests historical sites wilderness or national park and environmental settings
a The security of the tenure held at the time of reporting along with any known impediments to obtaining a licence to operate in the area
a The Thackaringa Cobalt project is located approximately 25 kilometres west-southwest of Broken Hill and comprises four tenements with a total area of 63 km2
Tenement
Registered amp Beneficial Holder Minerals Grant Date Expiry Date
Annual Expenditure
Commit-ment
EL6622 Broken Hill Prospecting Limited (BPL)
Group 1 30082006 29082017 $47000
EL 8143 BPL Group 1 26072013 26072017 $14000
ML86 BPL Cobalt iron nickel platinum sulphur
05111975 04112017 $75000
ML87 BPL Cobalt iron nickel platinum sulphur
05111975 04112017 $75000
a The project tenure is subject to a Farm-In agreement between Cobalt Blue Holdings Limited (COB) and Broken Hill Prospecting Limited (BPL) The nature of this agreement is detailed in the COB Replacement Prospectus (as released 4 January 2017)
a The nearest residence (Thackaringa Station) is located approxi-mately three kilometres west of EL6622
a EL6622 is intersected by the Transcontinental Railway the Barrier Highway is located the north of the licence boundaries
a The majority of the project tenure is covered by Western Lands Lease which is considered to extinguish native title interest However Native Title Determination NC9732 (Barkandji Traditional Owners 8) is current over the area and may be relevant to Crown Land parcels (eg public roads) within the project area
a The project tenure is more than 90 kilometres from the nearest National Park and or Wilderness Area (Kinchega National Park) and approximately 20 kilometres south of the nearest Water Supply Reserve (Umberumberka Reservoir Water Supply Reserve)
a The Company is not aware of any impediments to obtaining a licence to operate in the area
Exploration done by other parties
a Acknowledgment and appraisal of exploration by other parties
a A detailed and complete record of all exploration activities undertaken prior to the BPL 2016 drilling program is appended to the JORC Table 1 which forms part of the Cobalt Blue Prospectus Document available on the COB website
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 23
Criteria JORC Code Explanation Commentary
Geology a Deposit type geological setting and style of mineralisation
Regional Geological Setting a The Thackaringa project is located in a deformed and metamor-
phosed Proterozoic supracrustal succession named the Willyama Supergroup which crops out as several inliers in western New South Wales including the Broken Hill Block (Willis et al 1982)
a Exploration by BPL Limited has been focused on the discovery of cobaltiferous pyrite deposits and Broken Hill type base-metal mineralisation both of which are known from historical exploration in the district
a The project area covers portions of the Broken Hill and Thackaringa group successions which host the majority of mineralisation in the region including the Broken Hill base-metal deposit The Sundown Group suite is also present The extensive sequence of quartz-albite-plagioclase rock that hosts the cobaltiferous pyrite mineralisation is interpreted as belonging to the Himalaya Formation which is stratigraphically at the top of the Thackaringa Group
Local Geological Setting a The oldest rocks in the region belong to the Curnamona Craton
which outcrops on the Broken Hill and Euriowie blocks a The overlying Proterozoic rocks have been broadly subdivided
into three major groupings of which the oldest groups are the highly deformed metasediments and igneous derived rocks of the Thackaringa and Broken Hill groups They comprise a major part of the Willyama Supergroup and host the giant Broken Hill massive Pb-Zn-Ag sulphide ore body EL6622 is within the Broken Hill block of the Curnamona Craton
Mineralisation Style a The Thackaringa Mineral deposits (Pyrite Hill Big Hill and Railway)
are characterised by large tonnage cobaltiferous-pyrite minerali-sation hosted within siliceous albitic gneisses and schists of the Himalaya Formation
a Cobalt mineralisation exists within stratabound pyritic horizons where cobalt is present within the pyrite lattice Mineralogical studies have indicated the majority of cobalt (~85) is found in solid solution with primary pyrite (Henley 1998)
a A strong correlation between pyrite content and cobalt grade is observed
a The regional geological setting indicates additional mineralisation targets including
a Stratiform Broken Hill Type (BHT) Copper-Lead-Zinc-Silver deposits
a Copper-rich BHT deposits a Stratiform to stratabound Copper-Cobalt-Gold deposits a Epigenetic Gold and Base metal deposits
Drill hole Information
a A summary of all information mat- erial to the understanding of the exploration results including a tab- ulation of the following information for all Material drill holes
a easting and northing of the drill hole collar
a elevation or RL (Reduced Level ndash elevation above sea level in metres) of the drill hole collar
a dip and azimuth of the hole
a down hole length and interception depth
a See drill holle summaries below
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 24
Drill hole summaries
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
17THD01 Pyrite Hill 1242 MGA54 518382 6449551 28906 -40 222 DDH1
17THD02 Pyrite Hill 1497 MGA54 518475 6449445 29054 -40 258 DDH1
17THD03 Pyrite Hill 785 MGA54 518370 6449190 30328 -40 2851 DDH1
17THD04 Big Hill 1198 MGA54 521078 6449589 27841 -45 1551 DDH1
17THD05 Big Hill 995 MGA54 521669 6449889 2785 -40 131 DDH1
17THD06 Railway 1655 MGA54 521970 6450705 2872 -45 128 DDH1
17THD07 Railway 2746 MGA54 522569 6451282 27067 -45 1565 DDH1
17THD08 Railway 1325 MGA54 522784 6451280 268881 -45 326 DDH1
17THD09 Railway 1205 MGA54 522905 6451511 278471 -40 1525 DDH1
17THD10 Railway 842 MGA54 522992 6451569 279779 -45 130 DDH1
17THD11 Railway 1115 MGA54 523109 6451682 280847 -40 1605 DDH1
17THD12 Railway 1265 MGA54 522796 6451419 272936 -40 14075 DDH1
17THD13 Railway 1055 MGA54 522836 6451456 276747 -40 1385 DDH1
17THD14 Pyrite Hill 99 MGA54 518375 6449089 29425 -60 285 DDH1
17THR001 Railway 156 MGA54 522615 6451277 267561 -60 120 RC5
17THR002 Railway 160 MGA54 522573 6451299 268511 -60 120 RC5
17THR003 Railway 96 MGA54 522124 6450868 27739 -60 130 RC5
17THR004 Railway 150 MGA54 522387 6451319 271453 -60 120 RC5
17THR005 Railway 72 MGA54 522024 6450783 282154 -60 120 RC5
17THR006 Railway 114 MGA54 522049 6450780 28401 -58 125 RC5
17THR007 Railway 180 MGA54 521965 6450699 286585 -59 125 RC5
17THR008 Railway 132 MGA54 521917 6450562 291682 -56 105 RC5
17THR009 Railway 120 MGA54 521906 6450496 292751 -58 105 RC5
17THR010 Railway 72 MGA54 521959 6450398 286445 -56 285 RC5
17THR011 Railway 126 MGA54 522302 6451169 276812 -56 120 RC5
17THR012 Railway 180 MGA54 522440 6451304 274931 -58 173 RC5
17THR013 Big Hill 102 MGA54 521750 6449942 28489 -60 1305 RC5
17THR014 Big Hill 104 MGA54 521628 6449796 277545 -53 130 RC5
17THR015 Big Hill 108 MGA54 521793 6449918 284847 -58 310 RC5
17THR016 Pyrite Hill 138 MGA54 518446 6449209 290391 -57 283 RC5
17THR017 Pyrite Hill 120 MGA54 518449 6449263 293147 -56 2815 RC5
17THR018 Pyrite Hill 78 MGA54 518027 6449806 289567 -60 222 RC5
17THR019 Pyrite Hill 72 MGA54 518105 6449754 287701 -55 222 RC5
17THR020 Pyrite Hill 66 MGA54 518166 6449695 288685 -60 222 RC5
17THR021 Pyrite Hill 78 MGA54 518183 6449717 286007 -60 222 RC5
17THR022 Pyrite Hill 156 MGA54 518510 6449306 28682 -55 281 RC5
17THR023 Pyrite Hill 150 MGA54 518506 6449377 289481 -57 2645 RC5
17THR024 Pyrite Hill 150 MGA54 518457 6449498 288137 -595 2285 RC5
17THR025 Pyrite Hill 114 MGA54 518311 6449609 287463 -60 222 RC5
17THR026 Pyrite Hill 114 MGA54 518268 6449681 284164 -60 222 RC5
17THR027 Pyrite Hill 72 MGA54 518243 6449646 287176 -60 222 RC5
17THR028 Railway 150 MGA54 522457 6451167 300659 -60 350 RC5
17THR029 Railway 162 MGA54 522482 6451084 295964 -60 175 RC5
17THR030 Railway 138 MGA54 522783 6451423 270814 -55 140 RC5
17THR031 Railway 120 MGA54 522945 6451566 27619 -55 145 RC5
17THR032 Railway 132 MGA54 522819 6451473 273712 -53 140 RC5
17THR033 Railway 120 MGA54 522501 6451315 26963 -60 175 RC5
17THR034 Railway 132 MGA54 522321 6451214 275947 -55 127 RC5
17THR035 Railway 156 MGA54 522259 6451120 275749 -552 130 RC5
17THR036 Railway 92 MGA54 522186 6450998 275339 -612 130 RC5
17THR037 Railway 126 MGA54 522148 6450941 274202 -55 126 RC5
17THR038 Railway 168 MGA54 521927 6450619 289555 -55 108 RC5
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 25
Historic down-hole information
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
67TH01 Pyrite Hill 3042 MGA94_54 518564805 644946003 280643 -55 2606 DDH1
70TH02 Pyrite Hill 1486 MGA94_54 51827242 644968054 28408 -61 2186 DDH1
70TH03 Pyrite Hill 1414 MGA94_54 51844985 644921188 28981 -62 2836 DDH1
70BH01 Big Hill 1027 MGA94_54 52085056 64493085 28456 -47 3186 DDH1
70BH02 Big Hill 1039 MGA94_54 52078612 64492644 2801 -50 3186 DDH1
80PYH13 Pyrite Hill 77 MGA94_54 5183582 64490377 29035 -50 2807 DDH1
80PYH14 Pyrite Hill 3003 MGA94_54 51866118 644928762 27796 -60 2807 DDH1
80PYH03 Pyrite Hill 35 MGA94_54 5182515 64495699 2994 -60 2207 PDDH2 2280BGH09 Big Hill 1005 MGA94_54 52065743 644929252 27280 -50 1447 DDH1
80PYH01 Pyrite Hill 2453 MGA94_54 5182462 64495657 3011 -60 2027 PDDH2 680PYH02 Pyrite Hill 513 MGA94_54 5182607 64495742 2976 -60 2207 PDDH2 335880PYH04 Pyrite Hill 55 MGA94_54 51836655 644923174 30834 -60 2957 PDDH2 38780PYH05 Pyrite Hill 936 MGA94_54 51822697 644967819 28518 -49 2227 PDDH2 1880PYH06 Pyrite Hill 855 MGA94_54 51816348 64497573 28373 -544 2227 PDDH2 1880PYH07 Pyrite Hill 945 MGA94_54 51808406 644981836 28516 -55 2227 PDDH2 1280PYH08 Pyrite Hill 110 MGA94_54 51800954 644988543 28614 -60 2227 PDDH2 880PYH09 Pyrite Hill 1005 MGA94_54 5179174 644993176 28655 -485 2227 PDDH2 880PYH10 Pyrite Hill 1453 MGA94_54 51839296 644956596 28553 -50 2227 PDDH2 25580PYH11 Pyrite Hill 1031 MGA94_54 51844096 644932952 29725 -50 2807 PDDH2 1880PYH12 Pyrite Hill 1095 MGA94_54 51840728 644913731 29263 -50 2807 PDDH2 4280BGH05 Big Hill 5486 MGA94_54 52095535 644953441 28893 -60 1637 RCDDH3 45598TC01 Railway 100 MGA94_54 52275006 645133973 26727 -60 1589 RC5
98TC02 Railway 100 MGA94_54 52239241 645138683 26678 -60 1409 RC5
98TC03 Big Hill 84 MGA94_54 52081645 644936939 31305 -60 1359 RC5
98TC04 Big Hill 13825 MGA94_54 52086005 644945085 30409 -60 1409 RC5
98TC05 Big Hill 70 MGA94_54 520728 644932807 28863 -50 1229 RC5
98TC06 Big Hill 108 MGA94_54 520715 6449343 28513 -60 1259 RC5
98TC07 Big Hill 120 MGA94_54 52078597 644938821 29922 -50 1339 RC5
98TC08 Big Hill 90 MGA94_54 52080195 644947781 29101 -60 1509 RC5
98TC09 Big Hill 114 MGA94_54 52082221 644946079 29625 -60 1339 RC5
98TC10 Big Hill 134 MGA94_54 521018 6449576 2815 -50 1729 RC5
98TC11 Railway 35 MGA94_54 5224112 645137396 26701 -60 1329 RC5
80BGH06 Big Hill 6804 MGA94_54 520880 6449472 299 -60 1707 RCDDH3 5880BGH08 Big Hill 797 MGA94_54 52076879 644939093 29629 -60 1267 RCDDH3 69980BGH07 Big Hill 23 MGA94_54 52113656 6449599 27411 -60 1777 RC5
93MGM01 Pyrite Hill 70 MGA94_54 51818544 644971377 28628 -60 2228 RDDH4 2493MGM02 Pyrite Hill 180 MGA94_54 51851545 644945467 28479 -60 2588 RDDH4 4811PHR01 Pyrite Hill 150 MGA94_54 51843547 644907276 28534 -60 27906 RC5
11PHR02 Pyrite Hill 198 MGA94_54 51849992 644915931 28379 -60 27906 RC5
11PHR03 Pyrite Hill 240 MGA94_54 5185603 644918961 28026 -60 27906 RC5
11PHR04 Pyrite Hill 186 MGA94_54 51852863 6449257 28403 -60 27906 RC5
11PHR05 Pyrite Hill 234 MGA94_54 51858425 644939762 28022 -60 25906 RC5
11PHR06 Pyrite Hill 180 MGA94_54 5184909 644952259 28402 -60 23406 RC5
11PHR07 Pyrite Hill 174 MGA94_54 51841347 64495929 28286 -60 21906 RC5
11PHR08 Pyrite Hill 180 MGA94_54 51834274 644965585 28288 -60 21806 RC5
11PSR01 Pyrite Hill 59 MGA94_54 51874273 6448864 26838 -60 25806 RC5
11PSR02 Pyrite Hill 132 MGA94_54 51871938 644896001 27041 -60 25506 RC5
11PSR03 Pyrite Hill 78 MGA94_54 51868699 644905535 27279 -60 25506 RC5
12BER01 Railway 157 MGA94_54 52166731 644989323 27769 -60 141 RC5
12BER02 Railway 132 MGA94_54 52121267 644969067 27353 -60 162 RC5
12BER03 Railway 151 MGA94_54 52187901 645043547 28859 -60 102 RC5
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 26
Historic down-hole information (continued)
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
12BER04 Railway 148 MGA94_54 52235392 645126835 27435 -60 131 RC5
12BER05 Railway 145 MGA94_54 52243947 645116784 29973 -60 124 RC5
12BER06 Railway 169 MGA94_54 52248137 645109135 29595 -60 118 RC5
12BER07 Railway 115 MGA94_54 52232372 645074875 27791 -60 144 RC5
12BER08 Railway 193 MGA94_54 52222079 64508118 27316 -60 129 RC5
12BER09 Railway 13975 MGA94_54 52210125 645088144 27591 -60 129 RC5
12BER10 Railway 151 MGA94_54 52195345 645071618 28449 -60 129 RC5
12BER11 Railway 193 MGA94_54 52273722 645137661 26583 -60 153 RC5
12BER12 Railway 111 MGA94_54 52290973 645151676 27736 -60 153 RC5
12BER13 Railway 205 MGA94_54 52288381 645155754 27103 -60 156 RC5
12BER14 Railway 151 MGA94_54 52312483 645163707 28836 -60 152 RC5
12BER15 Railway 109 MGA94_54 5233113 64518417 28395 -60 154 RC5
12BER16 Railway 115 MGA94_54 52299408 645159199 27595 -60 156 RC5
12BER17 Railway 1155 MGA94_54 5225165 645131494 2691 -60 153 RC5
12BER18 Railway 157 MGA94_54 52233275 645128131 27229 -60 129 RC5
12BER19 Railway 97 MGA94_54 52224055 645106715 27616 -60 135 RC5
12BER20 Railway 120 MGA94_54 52129169 644973363 27695 -60 165 RC5
13BED01 Railway 3492 MGA94_54 52248021 645109243 29601 -60 3007 DDH1
16DM01 Pyrite Hill 1616 MGA94_54 51841138 644959389 28269 -60 2155 DDH1
16DM02 Pyrite Hill 1834 MGA94_54 51852662 644926158 28418 -60 2850 DDH1
16DM03 Big Hill 1265 MGA94_54 5210371 644956749 28301 -60 1585 DDH1
16DM04 Big Hill 1054 MGA94_54 52081474 64494644 29618 -55 1285 DDH1
16DM05 Railway 2465 MGA94_54 5221037 645088187 27662 -60 1285 DDH1
16DM06 Railway 1604 MGA94_54 52291157 645151913 2785 -60 1525 DDH1
16DM07 Railway 2425 MGA94_54 52299526 645159826 27636 -60 1561 DDH1
16DM08 Railway 2585 MGA94_54 52235145 645127307 27385 -60 1309 DDH1
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 27
Down hole length and interception depth ndash 2017 holes
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THD01 34 123 89 982 94 87
including 35 41 6 1143 119 106
and 50 55 5 1311 131 115
and 81 122 41 1366 118 11
17THD02 47 134 87 911 88 92
including 48 77 29 1238 111 114
and 116 134 18 1199 110 111
17THD03 40 635 235 894 116 108
including 49 63 14 1076 143 124
17THD04 20 29 9 1033 86 872 96 24 703 88 81
17THD05 44 60 16 993 98 85
including 44 56 12 1094 109 94
71 76 5 840 64 6317THD06 39 85 46 1136 114 101
including 40 70 30 1227 122 104
and 76 85 9 1148 107 100
17THD07 15 128 113 879 81 88
including 47 55 8 1048 117 103
and 61 102 41 1452 125 123
142 152 10 704 6 102199 204 5 706 49 65
17THR001 27 63 36 1075 106 104
including 37 63 26 1280 119 115
75 84 9 755 91 139
17THR002 37 43 6 711 69 82
91 136 45 983 98 105
including 102 136 34 1190 117 118
17THR003 4 59 55 937 93 94
including 10 46 36 1212 116 110
17THR004 49 146 97 888 102 102
including 51 113 62 1051 114 113
17THR005 52 72 20 1053 128 126
including 53 63 10 1145 125 130
17THR006 14 74 60 754 86 87
including 17 44 27 1176 125 121
17THR007 5 22 17 837 0 125
including 12 19 7 1049 0 105
128 154 26 1034 114 115
including 128 146 18 1321 144 143
17THR008 37 78 41 1319 122 11217THR009 29 65 36 957 94 92including 34 60 26 1150 111 102
100 105 5 833 129 12717THR010 51 57 6 729 49 5317THR011 30 83 53 1116 12 109
including 31 62 31 1423 155 135
17THR012 50 117 67 748 75 86
including 59 67 8 1084 103 126
and 75 102 27 1120 110 113
172 177 5 725 64 64
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 28
Down hole length and interception depth ndash 2017 holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THR013 19 73 54 888 54 5
including 19 29 10 2576 88 77
17THR014 12 45 33 749 81 74
including 25 33 8 1148 113 94
17THR015 40 48 8 995 89 8117THR016 66 115 49 1096 129 134
including 66 81 15 1184 142 139
and 89 114 25 1183 134 141
17THR017 54 112 58 1383 132 128
including 56 85 29 2042 183 158
17THR018 47 63 16 1124 151 14117THR019 42 59 17 1032 107 114
17THR020 29 49 20 1067 116 115
including 29 36 7 1352 135 126
17THR021 44 64 20 1204 131 12717THR022 101 138 37 1152 107 1217THR023 91 137 46 1271 139 133
including 91 97 6 1953 187 166
and 114 125 11 2707 311 265
17THR027 29 54 25 1176 126 118
including 30 47 17 1382 141 125
Down hole length and interception depth ndash historic holes
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
11PHR02 74 114 40 875 108 116
11PHR03 150 162 12 750 83 96
11PHR03 163 190 27 732 106 119
11PHR03 206 227 21 988 117 13
11PHR04 124 172 48 1049 128 129
11PHR05 197 219 22 1138 107 133
11PHR06 104 135 31 854 83 115
11PHR06 155 171 16 1315 12 122
11PHR07 96 147 51 941 95 99
11PHR08 103 115 12 1417 139 148
11PHR08 126 144 18 1048 126 142
12BER01 115 139 24 768 72 74
12BER02 18 25 7 1062 103 93
12BER02 113 123 10 907 85 86
12BER04 41 90 49 1191 114 127
12BER04 121 126 5 1241 9 112
12BER05 33 39 6 1109 79 92
12BER05 65 76 11 721 63 66
12BER06 131 169 38 844 83 128
12BER07 38 43 5 704 10 101
12BER09 33 92 59 841 9 116
12BER11 31 62 31 738 84 126
12BER11 92 159 67 1061 10 131
12BER11 173 193 20 737 67 83
12BER12 27 81 54 1430 181 189
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 29
Down hole length and interception depth ndash historic holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
12BER13 21 42 21 761 74 91
12BER13 65 75 10 1882 204 216
12BER14 28 55 27 1013 125 129
12BER16 25 100 75 1008 106 107
12BER17 92 99 7 739 6 63
12BER18 117 157 40 1017 112 114
12BER19 34 56 22 1151 104 108
12BER19 68 75 7 780 61 6
12BER20 21 46 25 731 69 75
13BED01 266 2915 255 872 85 78
16DM01 96 147 51 851 91 86
16DM02 127 172 45 1118 138 136
16DM03 104 111 7 838 103 9
16DM04 91 99 8 887 91 84
16DM05 30 103 73 793 82 9
16DM05 199 211 12 830 251 221
16DM06 28 84 56 1280 162 167
16DM06 138 146 8 722 78 112
16DM07 35 60 25 1232 111 111
16DM07 71 104 33 1224 133 134
16DM08 76 100 24 1026 11 12
16DM08 165 177 12 921 122 126
17THD01 34 123 89 982 94 87
17THD02 47 134 87 911 88 92
17THD03 40 635 235 894 116 108
17THD04 20 29 9 1033 86 8
17THD04 72 96 24 703 88 81
17THD05 44 60 16 993 98 85
17THD05 71 76 5 840 64 63
17THD06 39 85 46 1136 114 101
17THD07 15 128 113 879 81 88
17THD07 142 152 10 704 6 102
17THD07 199 204 5 706 49 65
17THR001 27 63 36 1075 106 104
17THR001 75 84 9 755 91 139
17THR002 37 43 6 711 69 82
17THR002 91 136 45 983 98 105
17THR003 4 59 55 937 93 94
17THR004 49 146 97 888 102 102
17THR005 52 72 20 1053 128 126
17THR006 14 74 60 754 86 87
17THR007 5 22 17 837 0 125
17THR007 128 154 26 1034 114 115
17THR008 37 78 41 1319 122 112
17THR009 29 65 36 957 94 92
17THR009 100 105 5 833 129 127
17THR010 51 57 6 729 49 53
17THR011 30 83 53 1116 12 109
17THR012 50 117 67 748 75 86
17THR012 172 177 5 725 64 64
17THR013 19 73 54 888 54 5
17THR014 12 45 33 749 81 74
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 30
Down hole length and interception depth ndash historic holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THR015 40 48 8 995 89 81
17THR016 66 115 49 1096 129 134
17THR017 54 112 58 1383 132 128
17THR018 47 63 16 1124 151 141
17THR019 42 59 17 1032 32 114
17THR020 29 49 20 1067 116 115
17THR021 44 64 20 1204 131 127
17THR022 101 138 37 1152 107 12
17THR023 91 137 46 1271 139 133
17THR027 29 54 25 1176 126 118
67TH01 12344 20001 7657 979 0 0
70BH01 3962 5334 1372 3323 31 0
70BH01 6431 8443 2012 1203 95 0
70BH02 7406 8686 128 704 75 0
70TH02 78 841 61 1666 175 154
70TH02 871 1021 15 1661 8 72
70TH03 777 1295 518 1016 129 132
80BGH05 39 49 10 752 0 0
80BGH06 18 6804 5004 969 0 0
80BGH08 44 7815 3415 939 0 0
80PYH01 75 17 95 725 0 0
80PYH02 341 4825 1415 1121 0 0
80PYH03 23 35 12 711 0 0
80PYH04 3975 55 1525 735 0 0
80PYH05 367 65 283 1160 118 0
80PYH06 54 62 8 905 0 0
80PYH07 67 794 124 1113 125 0
80PYH10 4845 1374 8895 831 86 0
80PYH11 346 465 119 916 8 0
80PYH11 572 9105 3385 1239 106 0
80PYH12 302 365 63 791 102 0
80PYH12 8515 908 565 857 146 0
80PYH14 2518 2734 216 1252 131 0
93MGM02 85 160 75 941 85 0
98TC01 20 47 27 744 91 126
98TC01 48 71 23 917 119 164
98TC03 34 45 11 1480 55 6
98TC03 68 79 11 1095 43 42
98TC04 84 94 10 966 39 4
98TC04 107 133 26 771 77 82
98TC05 24 62 38 754 64 7
98TC06 66 72 6 727 104 111
98TC06 76 101 25 767 101 106
98TC07 35 46 11 1546 165 171
98TC07 61 82 21 728 91 94
98TC09 32 39 7 716 49 174
98TC09 82 107 25 732 6 67
98TC10 101 125 24 732 79 8
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 31
Criteria JORC Code Explanation Commentary
Data aggregation methods
a In reporting Exploration Results weighting averaging techniques maximum andor minimum grade truncations (eg cutting of high grades) and cut-off grades are usually Material and should be stated
a Where aggregate intercepts incorporate short lengths of high grade results and longer lengths of low grade results the procedure used for such aggregation should be stated and some typical examples of such aggregations should be shown in detail
a The assumptions used for any reporting of metal equivalent values should be clearly stated
Drilling a Drill hole intercept grades are typically reported as down-hole
length-weighted averages with any non-recovered sample within the reported intervals treated as no grade The cut-off used for selecting significant intersections is selected to reflect the overall tenor of mineralisation in most cases 500ppm cobalt
a No top cuts have been applied when calculating average grades for reported significant intersections
a No metal equivalent values are reported
Relationship between mineralis- ation widths and intercept lengths
a These relationships are particularly important in the reporting of Exploration Results
a If the geometry of the mineralisation with respect to the drillhole angle is known its nature should be reported
a If it is not known and only the down hole lengths are reported there should be a clear statement to this effect (eg lsquodown hole length true width not knownrsquo)
a Drill holes at the Thackaringa project are typically angled at 50deg or 60deg and drilled perpendicular to the mineralised trend with drilling orientations adjusted along strike to accommodate folded geological sequences
a Mineralisation at the Big Hill and Railway prospects is steeply dipping and consequently mineralised intersections will be greater than true width At Pyrite Hill mineralisation is gently dipping and mineralised intersections will be close to true width
a There is insufficient geological knowledge to accurately estimate true widths and as such all drill intersections are reported as down hole lengths
Diagrams a Appropriate maps and sections (with scales) and tabulations of intercepts should be included for any significant discovery being reported These should include but not be limited to a plan view of drill hole collar locations and appropriate sectional views
a Appropriate maps and sections are presented in the accompa-nying ASX release
Balanced reporting
a Where comprehensive reporting of all exploration results is not practicable representative reporting of both low and high grades andor widths should be practiced to avoid misleading reporting of Exploration Results
a Only mineralised drill hole intersections regarded as highly anomalous and of economic interest are reported The proportion of each hole represented by the reported intervals can be ascertained from the sum of the reported intervals divided by the total drill hole depth
a All assay results for drill holes included in the various Mineral Resource estimates have been considered and comprise results not necessarily regarded as anomalous
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 32
Criteria JORC Code Explanation Commentary
Other substantive exploration data
a Other exploration data if meaningful and material should be reported including (but not limited to) geological obser-vations geophysical survey results geochemical survey results bulk samples ndash size and method of treatment metallurgical test results bulk density groun d- water geotechnical and rock characteristics potential deleterious or contaminating substances
a No further exploration data is deemed material to the results presented in this release
Further work a The nature and scale of planned further work (eg tests for lateral extensions or depth extensions or large-scale step-out drilling)
a Diagrams clearly highlighting the areas of possible extensions including the main geological interpretations and future drilling areas provided this information is not commercially sensitive
a The nature and scale of planned further work will be determined following the completion of revised Mineral Resource estimation for the Thackaringa deposits scheduled for May 2017
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Figure 3 Railway X-section along plane of 17THD07 For
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 6
Pyrite HillThe Pyrite Hill deposit is hosted within an extensively metamorphosed pyrite-albite-quartz gneiss The deposit has a strike length of 1200m and dips moderately to the east (Figure 5)
The drilling at Pyrite Hill comprised four DD holes for a total of 451m and 12 RC holes for a total 1308m The RC program was designed to close the spacing between existing holes to allow recalculation of the Mineral Resource the DD program comprised holes to twin existing RC holes and to provide material for metallurgical testwork
Pyrite Hill results
At Pyrite Hill assays confirm the down-dip mineralisation within the host lithology Best mineralised intercepts include
a Drillhole 17THD01 ndash 89m 982ppm Co 94 S and 87 Fe from 34m drill depth
a Drillhole 17THR016 ndash 49m 1096ppm Co 129 S and 134 Fe from 66m drill depth
a Drillhole 17THR017 ndash 58m 1383ppm Co 132 S and 128 Fe from 54m drill depth and
a Drillhole 17THR021 ndash 20m 1204ppm Co 131 S and 127 Fe from 44m drill depth
Figure 4 Logging ndash Thackaringa Diamond Drilling CoresFor
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 7
Figure 5 Plan view of Pyrite Hill
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Figure 6 Pyrite Hill X-section along plane of 17THR017 For
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 9
Big HillThe Big Hill deposit is an off-set southwestern extension of the high-grade metamorphic host at Railway The drilling at Big Hill comprised two diamond holes for a total of 219m and three RC holes for a total of 314m The RC program was designed to test the mineralisation at sparsely explored north-eastern end of the prospect at an interpreted offset fault zone between Big Hill and Railway The diamond program comprised holes to provide solid core to assist the structural interpretation of this complex hinge structure
Big Hill results
The 2017 drilling at Big Hill has discovered some structural complications at a fault zone nevertheless some of the highest-yet cobalt mineralisation was intersected in this section Best mineralised intercepts include
a Drillhole 17THR013 ndash 54m 888ppm Co 54 S and 50 Fe from 19m drill depth
Figure 7 Field Crew - RC Drill Rig - Railway Deposit
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Figure 8 Plan view of Big HillFor
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Figure 9 Big Hill X-section along plane of 17THR013For
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 12
Cobalt Blue BackgroundCobalt Blue (ldquoCOBrdquo) is an exploration company focussed on green energy technology and strategic development to upgrade the existing mineral resource at the Thackaringa Cobalt Project in New South Wales This strategic metal is in strong demand for new generation batteries particularly lithium-ion batteries now being widely used in clean energy systems
COB has entered into a farm-in joint venture agreement with Broken Hill Prospecting Limited (ldquoBPLrdquo) in which COB acquired an initial 51 interest in the Thackaringa Cobalt Project COB will undertake exploration and development programs at the Thackaring Cobalt Project and subject to the achievement of milestones will acquire 100 of the Thackaringa Cobalt Project
The Thackaringa Project 23 km west of Broken Hill and 400km by rail from Port Pirie consists of four granted tenements (EL6622 EL8143 ML86 and ML87) with total area of 63 km2 The main target for exploration is well known and contains documented large tonnage cobalt bearing pyrite deposits The project area is under-explored with the vast majority of historical exploration directed at or around the outcropping pyritic cobalt deposits at Pyrite Hill and Big Hill
Potential to extend the Mineral Resource at Pyrite Hill Big Hill Railway and the other prospects is high Numerous other prospects within COBrsquos tenement package are early stage and under-explored
Looking forward we would like our shareholders to keep in touch with COB updates and related news items which we will post on our website the ASX announcements platform as well as social media such as Facebook ( ) and LinkedIn ( ) Please donrsquot hesitate to join the lsquoCOB friendsrsquo on social media and also to join our newsletter mailing list at our website
Joe KaderavekChief Executive Officerjoekaderavekcobaltblueholdingscom(02) 9966 5629
Competent Person StatementThe information in this report that relates to exploration results Mineral Resources and Targets is based on information compiled by Mr Anthony Johnston BSc (Hons) who is a Member of the Australian Institute of Mining and Metallurgy and who is a non-executive director of Cobalt Blue Holdings Limited the Chief Executive Officer of Broken Hill Prospecting Limited and the Technical Manager of the Joint Venture Mr Johnston has sufficient experience which is relevant to the style of mineralisation and type of deposits under consideration and to the activity which he is undertaking to qualify as a Competent Person as defined in the 2004 amp 2012 Edition of the ldquoAustralasian Code for Reporting of Exploration Results Mineral Resources and Ore Reservesrdquo Mr Johnston consents to the inclusion in the announcement of the matters based on his information in the form and context that the information appears
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Appendix ndash JORC Code 2012 Edition ndash Table 1 Section 1 ndash Sampling Techniques and Data(Criteria in this section apply to all succeeding sections)
Criteria JORC Code Explanation Commentary
Sampling techniques
a Nature and quality of sampling (eg cut channels random chips or specific specialised industry standard measurement tools appropriate to the minerals under investigation such as down-hole gamma sondes or handheld XRF instruments etc) These examples should not be taken as limiting the broad meaning of sampling
a Include reference to measures taken to ensure sample repre-sentivity and the appropriate calibration of any measurement tools or systems used
a Aspects of the determination of mineralisation that are Material to the Public Report
a In cases where lsquoindustry standardrsquo work has been done this would be relatively simple (eg lsquoreverse circulation drilling was used to obtain 1 m samples from which 3 kg was pulverised to produce a 30 g charge for fire assayrsquo) In other cases more explanation may be required such as where there is coarse gold that has inherent sampling problems Unusual commodities or mineralisation types (eg submarine nodules) may warrant disclosure of detailed information
Diamond Drilling (DD)Pre-1990a Diamond drilling was used to obtain core from which irregular
intervals reflecting visual mineralisation and geological logging were hand-split or sawn Samples were submitted for analysis using a mixed acid digestion and AAS methodology
Post-1990 a Diamond drilling (one drill hole) was used to obtain core from
which irregular intervals reflecting visual mineralisation and geological logging were sawn (quarter core for HQ) Samples were submitted for analysis using a mixed acid digestion and ICP-OES methodology
2016 Metallurgical Drillinga Eight HQ diameter diamond drill holes (DD) were drilled at
the Thackaringa project in late 2016 They will be used as metallurgical reference holes and to twin some of the previous reverse circulation percussion (RC) holes for QAQC and assay comparison between DD and RC There were two holes drilled at Pyrite Hill two at Big Hill and four at Railway
a Diamond drilling was used to obtain core from which regular (one-metre) intervals were sawn with
a one half core dispatched for analysis using a mixed acid digestion and ICP-AES methodology
a the other half was further sawn such that one quarter- core was sent for metallurgical test work and the other quarter-core retained for archival purposes
Historical Reverse Circulation Drilling a RC drilling was used to obtain a representative sample by means
of riffle splitting with samples submitted for analysis using the above-mentioned methodologies
a Pre-2000 drill samples were assayed for a small and variable suite of elements (sometimes only cobalt) The post-2000 drill samples (5095 samples) are all assayed by ICP-MS for a suite of 33 elements
2017 Diamond Drilling Program a This announcement summarises the results from approximately
23 of the 2017 diamond drilling program Fourteen HQ diameter diamond drill holes (DD) were assayed at the Thackaringa project They will be used as metallurgical reference holes and to twin some of the previous reverse circulation percussion (RC) holes for QAQC and assay comparison between DD and RC There were four holes drilled at Pyrite Hill two at Big Hill and 8 at Railway
a Diamond drilling (17THD01-03) was used to obtain core from which regular (one-metre) intervals were sawn with
a one half core dispatched for analysis using a mixed acid digestion and ICP-AES methodology
a the other half was retained for future metallurgical test work and archival purposes
a Diamond drilling (17THD04-14) was used to obtain core from which regular (one-metre) intervals were sawn with
a one quarter core dispatched for analysis using a mixed acid digestion and ICP-AES methodology
a the other three quarters was retained for future metallurgical test work and archival purposes
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 14
Criteria JORC Code Explanation Commentary
Sampling techniques (continued)
2017 RC drilling Program a This announcement summarises the results from approximately
23 of the 2017 RC drilling program Thirty eight (38) RC drill holes were drilled amp assayed at the Thackaringa project They will be used to infill the drill spacing of historic holes to allow a re-estimation of the existing Mineral Resource There were 12 holes drilled at Pyrite Hill three at Big Hill and 23 at Railway
a RC drilling was used to obtain a representative sample by means of riffle splitting with samples submitted for analysis using the above-mentioned methodologies
a The 2017 drill samples are all assayed by ICP-MS for a suite of 33 elements
Drilling techniques
a Drill type (eg core reverse circulation open-hole hammer rotary air blast auger Bangka sonic etc) and details (eg core diameter triple or standard tube depth of diamond tails face-sampling bit or other type whether core is oriented and if so by what method etc)
a The Thackaringa drilling database comprises a total of forty-eight (48) DD holes and eighty-one (81) RC drill holes Diamond drilling was predominantly completed with standard diameter conventional HQ and NQ utilising RC and percussion pre-collars to an average 25 metres (see Drill-hole Information for further details) Early (1960-1970) drill holes utilised HX ndash AX diameters dependent on drilling depth Reverse circulation drilling utilised standard drill-hole diameters (48rdquo-55rdquo) with a face sampling hammer
a During 2013 a single diamond drill hole (13BED01) was completed at the Railway deposit using a triple tube system with a HQ3 diameter
Year Drilling Metres
1967 1 diamond drill hole 3042
1970 4 diamond drill holes 4966
1980 18 diamond and 1 RC drill hole 171123
1993 2 diamond drill holes 250
1998 11 RC drill holes 109325
2011 11 RC drill holes 1811
2012 20 RC drill holes 287425
2013 1 diamond drill hole 3492
2016 8 diamond drill holes 14848
2017 14 diamond drill holes and 38 RC drill holes 6472
Total 48 diamond and 81 RC drill holes 1684653
a This ASX release describes assay results from seven (7) diamond drill holes and twenty-four (24) RC holes completed and assayed by April 2017 Commencement of that drilling program was reported to ASX by the company in April 2017
a Diamond drilling was completed using a triple tube system with a HQ3 diameter
a Holes were drilled at angles between 40 and 60 degrees from horizontal and the resulting core was oriented as part of the logging process
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 15
Criteria JORC Code Explanation Commentary
Drill sample recovery
a Method of recording and assessing core and chip sample recoveries and results assessed
a Measures taken to maximise sample recovery and ensure representative nature of the samples
a Whether a relationship exists between sample recovery and grade and whether sample bias may have occurred due to preferential lossgain of finecoarse material
Diamond Drilling
a Historical core recoveries were accurately quantified through measurement of actual core recovered versus drilled intervals
a Historical diamond drilling employed conventional drilling techniques while diamond drilling completed by Broken Hill Prospecting utilised a triple-tube system to maximise sample recovery
a Core recovery of 997 was achieved during completion of drill hole 13BED01
a Core recovery of 98 was achieved during the 2016 diamond drilling program
a Core recovery of 933 was achieved during the 2017 diamond drilling program
a No relationship between sample recovery and grade has been observed
Reverse Circulation Drilling
a Reverse circulation sample recoveries were visually estimated during drilling programs Where the estimated sample recovery was below 100 this was recorded in field logs by means of qualitative observation
a Reverse circulation drilling employed adequate air (using a compressor and booster) to maximise sample recovery
a No relationship between sample recovery and grade has been observed
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 16
Criteria JORC Code Explanation Commentary
Logging a Whether core and chip samples have been geologically and geotechnically logged to a level of detail to support appropriate Mineral Resource estimation mining studies and metallurgical studies
a Whether logging is qualitative or quantitative in nature Core (or costean channel etc) photography
a The total length and percentage of the relevant intersections logged
a A qualified geoscientist has logged all reported drill holes in their entirety This logging has been completed to a level of detail considered to accurately support Mineral Resource estimation and metallurgical studies The parameters logged include lithology alteration mineralisation and oxidation These parameters are both qualitative and quantitative in nature
a Diamond drilling completed in 2017 by BPL has been subject to geotechnical logging with parameters recorded including rock-quality designation (RQD) fracture frequency and hardness
a During 2013 a considerable amount of historical drilling was re-logged through review of available core stored at Broken Hill as well the re-interpretation of historical reports where core or percussion samples no longer exist A total of eight (8) diamond drill holes and sixteen (16) diamond drill holes with pre-collars were re-logged as detailed below
Hole ID Deposit Max Depth Hole TypePre-Collar Depth (m)
67TH01 Pyrite Hill 3042 DDH1 ndash
70TH02 Pyrite Hill 1486 DDH1 ndash
70TH03 Pyrite Hill 1414 DDH1 ndash
70BH01 Big Hill 1027 DDH1 ndash
70BH02 Big Hill 1039 DDH1 ndash
80PYH13 Pyrite Hill 77 DDH1 ndash
80PYH14 Pyrite Hill 3003 DDH1 ndash
80BGH09 Big Hill 1005 DDH1 ndash
80PYH01 Pyrite Hill 2453 PDDH2 6
80PYH02 Pyrite Hill 513 PDDH2 3358
80PYH04 Pyrite Hill 55 PDDH2 387
80PYH05 Pyrite Hill 936 PDDH2 18
80PYH06 Pyrite Hill 855 PDDH2 18
80PYH07 Pyrite Hill 945 PDDH2 12
80PYH08 Pyrite Hill 110 PDDH2 8
80PYH09 Pyrite Hill 1005 PDDH2 8
80PYH10 Pyrite Hill 1453 PDDH2 255
80PYH11 Pyrite Hill 1031 PDDH2 18
80PYH12 Pyrite Hill 1095 PDDH2 42
80BGH05 Big Hill 5486 RCDDH3 455
80BGH06 Big Hill 6804 RCDDH3 58
80BGH08 Big Hill 797 RCDDH3 699
93MGM01 Pyrite Hill 70 RDDH4 24
93MGM02 Pyrite Hill 180 RDDH4 48
1 Diamond drill hole2 Diamond drill hole with percussion pre-collar3 Diamond drill hole with reverse circulation pre-collar4 Diamond drill hole with rotary air blast pre-collar
a Litho-geochemistry has been used to verify geological logging where available for drilling completed by Broken Hill Prospecting post 2010
a Representative reference trays of chips from reverse circulation drilling completed post 2010 have been retained by Broken Hill Prospecting
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 17
Criteria JORC Code Explanation Commentary
Sub-sampling techniques and sample preparation
a If core whether cut or sawn and whether quarter half or all core taken
a If non-core whether riffled tube sampled rotary split etc and whether sampled wet or dry
a For all sample types the nature quality and appropriateness of the sample preparation technique
a Quality control procedures adopted for all sub-sampling stages to maximise representivity of samples
a Measures taken to ensure that the sampling is representative of the in situ material collected including for instance results for field duplicatesecond-half sampling
a Whether sample sizes are appropriate to the grain size of the material being sampled
Diamond Drilling (DD)Pre-1990a Core samples were hand-split or sawn with re-logging of available
historical core (see Logging) indicating a 7030 (retainedassayed) split was typical The variation of sample ratios noted are consid-ered consistent with the sub-sampling technique (hand-splitting)
a No second half samples were submitted for analysis a It is considered water used for core cutting is unprocessed and
unlikely to have introduced sample contamination a Procedures relating to the definition of the line of cutting or splitting
are not available It is expected that lsquostandard industry practicersquo for the period was applied to maximize sample representivity
Post-1990 a NQ drilling core was sawn with half core submitted for assay a HQ drilling core was sawn with quarter core submitted for assay a No second half samples were submitted for analysis a It is considered water used for core cutting is unprocessed and
unlikely to have introduced sample contamination a Procedures relating to the definition of the line of cutting or splitting
are not available It is expected that lsquostandard industry practicersquo for the period was applied to maximise sample representivity
2016 Metallurgical Drilling a All HQ drill core was sawn into halves with each half then re-sawn
to provide 4 lengths of quarter core for each interval a One half core was submitted for assay a One quarter core was submitted for metallurgical test work a One quarter core was retained for archive a It is considered that the water used for core cutting is most
unlikely to have introduced sample contamination a Sample sawing and processing for test work were undertaken
according to lsquostandard industry practicersquo to maximise sample representivity
2017 Diamond Drilling a All HQ drill core was sawn into halves with each half then re-sawn to
provide 4 lengths of quarter core for each interval
a One quarter ndash one half core was submitted for assay
a One quarter ndash three quarter core was retained for archive
a It is considered that the water used for core cutting is most unlikely to have introduced sample contamination
a Sample sawing and processing for test work were undertaken according to lsquostandard industry practicersquo to maximise sample representivity
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 18
Criteria JORC Code Explanation Commentary
Sub-sampling techniques and sample preparation (continued)
Historical Reverse Circulation Drilling a Sub-sampling of reverse circulationpercussion chips was
achieved using a cyclone with cone or riffle splitter a During drilling operations the sample cyclone and splitter were
regularly cleaned to prevent down hole sample contamination a Dry sampling was achieved with the use of adequate air using a
compressor and booster where groundwater was encountered a During reverse circulation drilling completed by Broken Hill
Prospecting duplicate samples were collected at the time of drilling These were obtained by spearing the bulk material held in the PVC sacks using a spear made of 40mm diameter PVC pipe three samples were speared through the full depth of the bulk material and these were combined to form one sample
a The Thackaringa drilling database includes a total of 139 field duplicates collected during reverse circulation drilling This reflects a ratio of approximately one field duplicate in every 32 samples (31) for drill holes where duplicates were collected (31 drill holes for 4469 metres) and an overall ratio of one field duplicate in every 42 samples (24) for all reverse circulation drill holes (43 drill holes for 58015 metres)
a Statistical analysis of field duplicates collected during drilling completed by Broken Hill Prospecting (119 duplicates representing 86 of all field duplicates) considered 18 elements of which only chromium lanthanum and titanium show some bias in the duplicate samples For cobalt the confidence limits were evenly placed either side of zero and the duplicates are deemed to be representative of the original samples
2017 Reverse Circulation Drilling a Sub-sampling of reverse circulationpercussion chips was achieved
using a riffle splitter
a During drilling operations the splitter was regularly cleaned to prevent down hole sample contamination
a Dry sampling was achieved with the use of adequate air using a compressor and booster where groundwater was encountered
a During reverse circulation drilling completed by Broken Hill Prospecting duplicate samples were collected at the time of drilling These were obtained by riffle splitting the remnant bulk sample following collection of the primary split
a Field duplicate samples were collected regularly during drilling (for every 18th sample on average)
a Assay results received to date include analysis of 120 field duplicate pairs from 24 RC drill holes
a A measure of the average precision of the sampling sample preparation and assaying methods given by the mean per cent difference (MPD) assay values of the duplicate pairs is summarised below Overall the sampling and assay precision for Co Fe and S at economically significant grades is regarded as reasonable
RC Field Duplicate Pairs
Co Cut-Off Count Co MPD S MPD Fe MPD
All 120 13 16 9
200ppm 52 13 11 10
500ppm 34 12 9 9
1000ppm 20 8 7 7
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 19
Criteria JORC Code Explanation Commentary
Quality of assay data and laboratory tests
a The nature quality and appropriateness of the assaying and laboratory procedures used and whether the technique is considered partial or total
a For geophysical tools spectrometers handheld XRF instruments etc the parameters used in determining the analysis including instrument make and model reading times calibrations factors applied and their derivation etc
a Nature of quality control proce-dures adopted (eg standards blanks duplicates external laboratory checks) and whether acceptable levels of accuracy (ie lack of bias) and precision have been established
a The nature and quality of all assaying and laboratory procedures employed for samples obtained through drilling (diamond and reverse circulation) are considered lsquoindustry standardrsquo for the respective periods
a The assay techniques employed for drilling (diamond and reverse circulation) include mixed acid digestion with ICP-OES and AAS finishes These methods are considered appropriate for the targeted mineralisation and regarded as a lsquonear totalrsquo digestion technique with resistive phases not expected to affect cobalt analyses
a All samples have been processed at independent commercial laboratories including AMDEL Australian Laboratory Services (ALS) Analabs and Genalysis
a All samples from drilling completed by Broken Hill Prospecting during 2011-2012 were assayed at ALS in Orange New South Wales All samples from drilling completed by Broken Hill Prospecting during 2016-2017 were assayed at ALS Adelaide South Australia ALS is a NATA Accredited Laboratory and qualifies for JASANZ ISO90012008 quality systems ALS maintains robust internal QAQC procedures (including analysis of standards repeats and blanks)
a To monitor the accuracy of assay results from the 2017 Thackaringa drilling CRM standards were included in the assay sample stream every 24 samples (on average) for RC chips and every 30 samples for diamond core The CRM samples were purchased from Ore Research amp Exploration Pty Ltd and the results are summarised below
Cobalt Sulphur Iron
OREAS Standard Count plusmn1SD plusmn2SD plusmn3SD plusmn3SD+ plusmn1SD plusmn2SD plusmn3SD plusmn3SD+ plusmn1SD plusmn2SD plusmn3SD plusmn3SD+
160 Low S Blank (28ppm Co) 12 10 ndash ndash 2 7 ndash ndash 5 6 2 2 2
162 Medium Grade (631ppm Co) 53 37 12 3 ndash 32 18 3 ndash 14 12 13 14
163 Low Grade (230ppm Co) 40 30 8 2 ndash 7 25 7 1 2 3 2 33
165 High Grade (2445ppm Co) 13 11 2 ndash ndash 7 5 1 ndash 1 5 2 5
166 High Grade (1970ppm Co) 35 26 8 ndash 1 27 6 ndash 2 9 5 5 16
153 114 30 5 3 80 54 11 8 32 27 24 70
75 20 3 2 52 35 7 5 21 18 16 46
Cobalt CRM Standards
Internal COB assay QAQC protocols cobalt performed well with 95 standard analyses falling within two standard deviations of the certified value and 75 within one SD No systematic out-of-specification trends were identified and there was no discernible tendency for a particular Co standard to preferentially assay either higher or lower than the certified Co concentration
Cobalt Blanks
A number of blanks were also submitted with the RC chip and diamond core samples mdash the OREAS160 CRM is essentially a low-sulphide blank with respect to cobalt (28ppm) and the results of assay of this standard are summarised in Table 1 In addition five quartz sand blanks were submitted bracketing very pyrite-rich intervals in diamond drill holes 17THD06 and 17THD07 Overall the quartz sand blanks returned a maximum of 69ppm Co 004 S and 065 Fe which are regarded as similar to background values and any contamination during sample preparation at the assay laboratory is likely to be immaterial to the final results
Based on the assay of standards and blanks with 95 of the Co results falling within two standard deviations of the certified value it is concluded that the assay results for Co are likely to be representative for the material submitted with no additional source of inaccuracy or bias identified
Sulphur CRM Standards
sulphur was reasonably well-performed with 87 of the total 153 standard analyses falling within two standard deviations of the certified value and 95 within 3SD
Iron CRM Standards
Iron analysis of standards showed poor accuracy with a tendency to assay low mdash 46 of the assays fall outside of 3 SD typically but not exclusively lower than the certified value
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 20
Criteria JORC Code Explanation Commentary
Verification of sampling and assaying
a The verification of significant intersections by either inde-pendent or alternative company personnel
a The use of twinned holes
a Documentation of primary data data entry procedures data verification data storage (physical and electronic) protocols
a Discuss any adjustment to assay data
a Historical drilling intersections were internally verified by personnel employed by previous explorers including CRAE Pty Limited Central Austin Pty Limited and Hunter Resources Broken Hill Prospecting has completed a systematic review of the related data
a The Thackaringa drilling database exists in electronic form as a Microsoft Access database Information related to individual drill holes is stored in digital files as extracted from historical reports (typically including location plan section logs photos surveys assays and petrology)
a Historical drilling data available in electronic form has been re-formatted and imported into the drilling database
a Quantitative historical drilling data including assays have been captured electronically during systematic data compilation and validation completed by Broken Hill Prospecting
a Samples returning assays below detection limits are assigned half detection limit values in the database
a All significant intersections are verified by the Companyrsquos Exploration Manager and independent geological consultant
Location of data points
a Accuracy and quality of surveys used to locate drill holes (collar and down-hole surveys) trenches mine workings and other locations used in Mineral Resource estimation
a Specification of the grid system used
a Quality and adequacy of topographic control
a Historical drill collars have been relocated and surveyed using a differential GPS (DGPS) In the instances where no collar could be located the position has been derived from georeferenced historical plans
a During systematic data validation completed in 2016 three drill holes at Big Hill were found to be incorrectly located One collar was located and surveyed by GPS and two were digitised from georeferenced historical plans (reported to the nearest metre) as the collars had been destroyed These corrections were captured in the Big Hill Mineral Resource estimate
a Down hole surveys using digital cameras were completed on all post 2000 drilling Down hole surveys for some earlier drilling were estimated from hole trace and section data where raw survey data was not reported
a All 2017 Thackaringa drill hole collars were located and surveyed with DGPS by an independent surveyor with reported accuracy of plusmn005m in horizontal and vertical measurement
a Downhole surveys using digital cameras were completed on all 2017 drill-holes
a All data is recorded in the GDA94 datum UTM Zone 54 (MGA54)
a 3D validation of drilling data has been completed by independent geological consultants to support detailed geological modelling in Microminetrade software
a The quality of topographic control is deemed adequate in consideration of the results presented in this release
Data spacing and distribution
a Data spacing for reporting of Exploration Results
a Whether the data spacing and distribution is sufficient to estab-lish the degree of geological and grade continuity appropriate for the Mineral Resource and Ore Reserve estimation procedure(s) and classifications applied
a Whether sample compositing has been applied
a The data density of existing drill holes at Thackaringa has been materially increased by the 2017 drilling program which was undertaken primarily to undertake infill drilling
a Detailed geological mapping supported by drill-hole data of sufficient spacing and distribution to establish a 3D geological model
a The level of geological and grade continuity is appropriate for the Mineral Resource estimation methodologies used and the classifications applied (being wholly Inferred Mineral Resources) Note that a recalculation of the Mineral Resource using 2017 drilling and assay data will commence in mid-2017
a No sample compositing has been applied to reported intersections
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 21
Criteria JORC Code Explanation Commentary
Orientation of data in relation to geological structure
a Whether the orientation of sampling achieves unbiased sampling of possible structures and the extent to which this is known considering the deposit type
a If the relationship between the drilling orientation and the orientation of key mineralised structures is considered to have introduced a sampling bias this should be assessed and reported if material
a The 2017 drill holes at the Thackaringa project were typically angled at -500 or -600 to the horizontal and drilled perpendicular to the mineralised trend with drilling orientations adjusted along strike to accommodate folded geological sequences
a Mineralisation at the Big Hill and Railway prospects is steeply dipping and consequently mineralised intersections will be greater than true width At Pyrite Hill mineralisation is gently dipping and mineralised intersections will be close to true width
a The drilling orientation is not considered to have introduced a sampling bias on assessment of the current geological interpretation
Sample security
a The measures taken to ensure sample security
a Sample security procedures are considered to be lsquoindustry standardrsquo for the respective periods
a Following recent drilling completed by BPL samples were trucked by an independent courier directly from Broken Hill to ALS Adelaide
a BPL consider that risks associated with sample security are limited given the nature of the targeted mineralisation
Audits or reviews
a The results of any audits or reviews of sampling techniques and data
a In late 2016 an independent validation of the Thackaringa drilling database was completed
a The data validation process consisted of systematic review of drilling data (collars assays and surveys) for identification of transcription errors
a Following review historical drill hole locations were also validated against georeferenced historical maps to confirm their location
a Three (3) drill holes at Big Hill were found to be incorrectly located One collar was located and surveyed by GPS and two were digitised from georeferenced historical plans (reported to the nearest metre) as the collars had been destroyed These corrections were captured in the Big Hill Mineral Resource estimate
a Total depths for all holes were checked against original reports
a Final 3D validation of drilling data has been completed by independent geological consultants to support detailed geological modelling in Microminetrade software
a Audits and reviews of QAQC results and procedures are further described in preceding sections of this table including Quality of assay data and laboratory tests Sub-sampling techniques and sample preparation and Logging
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 22
Section 2 Reporting of Exploration Results(Criteria listed in the preceding section also apply to this section)
Criteria JORC Code Explanation Commentary
Mineral tenement and land tenure status
a Type reference namenumber location and ownership including agreements or material issues with third parties such as joint ventures partnerships overriding royalties native title interests historical sites wilderness or national park and environmental settings
a The security of the tenure held at the time of reporting along with any known impediments to obtaining a licence to operate in the area
a The Thackaringa Cobalt project is located approximately 25 kilometres west-southwest of Broken Hill and comprises four tenements with a total area of 63 km2
Tenement
Registered amp Beneficial Holder Minerals Grant Date Expiry Date
Annual Expenditure
Commit-ment
EL6622 Broken Hill Prospecting Limited (BPL)
Group 1 30082006 29082017 $47000
EL 8143 BPL Group 1 26072013 26072017 $14000
ML86 BPL Cobalt iron nickel platinum sulphur
05111975 04112017 $75000
ML87 BPL Cobalt iron nickel platinum sulphur
05111975 04112017 $75000
a The project tenure is subject to a Farm-In agreement between Cobalt Blue Holdings Limited (COB) and Broken Hill Prospecting Limited (BPL) The nature of this agreement is detailed in the COB Replacement Prospectus (as released 4 January 2017)
a The nearest residence (Thackaringa Station) is located approxi-mately three kilometres west of EL6622
a EL6622 is intersected by the Transcontinental Railway the Barrier Highway is located the north of the licence boundaries
a The majority of the project tenure is covered by Western Lands Lease which is considered to extinguish native title interest However Native Title Determination NC9732 (Barkandji Traditional Owners 8) is current over the area and may be relevant to Crown Land parcels (eg public roads) within the project area
a The project tenure is more than 90 kilometres from the nearest National Park and or Wilderness Area (Kinchega National Park) and approximately 20 kilometres south of the nearest Water Supply Reserve (Umberumberka Reservoir Water Supply Reserve)
a The Company is not aware of any impediments to obtaining a licence to operate in the area
Exploration done by other parties
a Acknowledgment and appraisal of exploration by other parties
a A detailed and complete record of all exploration activities undertaken prior to the BPL 2016 drilling program is appended to the JORC Table 1 which forms part of the Cobalt Blue Prospectus Document available on the COB website
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 23
Criteria JORC Code Explanation Commentary
Geology a Deposit type geological setting and style of mineralisation
Regional Geological Setting a The Thackaringa project is located in a deformed and metamor-
phosed Proterozoic supracrustal succession named the Willyama Supergroup which crops out as several inliers in western New South Wales including the Broken Hill Block (Willis et al 1982)
a Exploration by BPL Limited has been focused on the discovery of cobaltiferous pyrite deposits and Broken Hill type base-metal mineralisation both of which are known from historical exploration in the district
a The project area covers portions of the Broken Hill and Thackaringa group successions which host the majority of mineralisation in the region including the Broken Hill base-metal deposit The Sundown Group suite is also present The extensive sequence of quartz-albite-plagioclase rock that hosts the cobaltiferous pyrite mineralisation is interpreted as belonging to the Himalaya Formation which is stratigraphically at the top of the Thackaringa Group
Local Geological Setting a The oldest rocks in the region belong to the Curnamona Craton
which outcrops on the Broken Hill and Euriowie blocks a The overlying Proterozoic rocks have been broadly subdivided
into three major groupings of which the oldest groups are the highly deformed metasediments and igneous derived rocks of the Thackaringa and Broken Hill groups They comprise a major part of the Willyama Supergroup and host the giant Broken Hill massive Pb-Zn-Ag sulphide ore body EL6622 is within the Broken Hill block of the Curnamona Craton
Mineralisation Style a The Thackaringa Mineral deposits (Pyrite Hill Big Hill and Railway)
are characterised by large tonnage cobaltiferous-pyrite minerali-sation hosted within siliceous albitic gneisses and schists of the Himalaya Formation
a Cobalt mineralisation exists within stratabound pyritic horizons where cobalt is present within the pyrite lattice Mineralogical studies have indicated the majority of cobalt (~85) is found in solid solution with primary pyrite (Henley 1998)
a A strong correlation between pyrite content and cobalt grade is observed
a The regional geological setting indicates additional mineralisation targets including
a Stratiform Broken Hill Type (BHT) Copper-Lead-Zinc-Silver deposits
a Copper-rich BHT deposits a Stratiform to stratabound Copper-Cobalt-Gold deposits a Epigenetic Gold and Base metal deposits
Drill hole Information
a A summary of all information mat- erial to the understanding of the exploration results including a tab- ulation of the following information for all Material drill holes
a easting and northing of the drill hole collar
a elevation or RL (Reduced Level ndash elevation above sea level in metres) of the drill hole collar
a dip and azimuth of the hole
a down hole length and interception depth
a See drill holle summaries below
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 24
Drill hole summaries
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
17THD01 Pyrite Hill 1242 MGA54 518382 6449551 28906 -40 222 DDH1
17THD02 Pyrite Hill 1497 MGA54 518475 6449445 29054 -40 258 DDH1
17THD03 Pyrite Hill 785 MGA54 518370 6449190 30328 -40 2851 DDH1
17THD04 Big Hill 1198 MGA54 521078 6449589 27841 -45 1551 DDH1
17THD05 Big Hill 995 MGA54 521669 6449889 2785 -40 131 DDH1
17THD06 Railway 1655 MGA54 521970 6450705 2872 -45 128 DDH1
17THD07 Railway 2746 MGA54 522569 6451282 27067 -45 1565 DDH1
17THD08 Railway 1325 MGA54 522784 6451280 268881 -45 326 DDH1
17THD09 Railway 1205 MGA54 522905 6451511 278471 -40 1525 DDH1
17THD10 Railway 842 MGA54 522992 6451569 279779 -45 130 DDH1
17THD11 Railway 1115 MGA54 523109 6451682 280847 -40 1605 DDH1
17THD12 Railway 1265 MGA54 522796 6451419 272936 -40 14075 DDH1
17THD13 Railway 1055 MGA54 522836 6451456 276747 -40 1385 DDH1
17THD14 Pyrite Hill 99 MGA54 518375 6449089 29425 -60 285 DDH1
17THR001 Railway 156 MGA54 522615 6451277 267561 -60 120 RC5
17THR002 Railway 160 MGA54 522573 6451299 268511 -60 120 RC5
17THR003 Railway 96 MGA54 522124 6450868 27739 -60 130 RC5
17THR004 Railway 150 MGA54 522387 6451319 271453 -60 120 RC5
17THR005 Railway 72 MGA54 522024 6450783 282154 -60 120 RC5
17THR006 Railway 114 MGA54 522049 6450780 28401 -58 125 RC5
17THR007 Railway 180 MGA54 521965 6450699 286585 -59 125 RC5
17THR008 Railway 132 MGA54 521917 6450562 291682 -56 105 RC5
17THR009 Railway 120 MGA54 521906 6450496 292751 -58 105 RC5
17THR010 Railway 72 MGA54 521959 6450398 286445 -56 285 RC5
17THR011 Railway 126 MGA54 522302 6451169 276812 -56 120 RC5
17THR012 Railway 180 MGA54 522440 6451304 274931 -58 173 RC5
17THR013 Big Hill 102 MGA54 521750 6449942 28489 -60 1305 RC5
17THR014 Big Hill 104 MGA54 521628 6449796 277545 -53 130 RC5
17THR015 Big Hill 108 MGA54 521793 6449918 284847 -58 310 RC5
17THR016 Pyrite Hill 138 MGA54 518446 6449209 290391 -57 283 RC5
17THR017 Pyrite Hill 120 MGA54 518449 6449263 293147 -56 2815 RC5
17THR018 Pyrite Hill 78 MGA54 518027 6449806 289567 -60 222 RC5
17THR019 Pyrite Hill 72 MGA54 518105 6449754 287701 -55 222 RC5
17THR020 Pyrite Hill 66 MGA54 518166 6449695 288685 -60 222 RC5
17THR021 Pyrite Hill 78 MGA54 518183 6449717 286007 -60 222 RC5
17THR022 Pyrite Hill 156 MGA54 518510 6449306 28682 -55 281 RC5
17THR023 Pyrite Hill 150 MGA54 518506 6449377 289481 -57 2645 RC5
17THR024 Pyrite Hill 150 MGA54 518457 6449498 288137 -595 2285 RC5
17THR025 Pyrite Hill 114 MGA54 518311 6449609 287463 -60 222 RC5
17THR026 Pyrite Hill 114 MGA54 518268 6449681 284164 -60 222 RC5
17THR027 Pyrite Hill 72 MGA54 518243 6449646 287176 -60 222 RC5
17THR028 Railway 150 MGA54 522457 6451167 300659 -60 350 RC5
17THR029 Railway 162 MGA54 522482 6451084 295964 -60 175 RC5
17THR030 Railway 138 MGA54 522783 6451423 270814 -55 140 RC5
17THR031 Railway 120 MGA54 522945 6451566 27619 -55 145 RC5
17THR032 Railway 132 MGA54 522819 6451473 273712 -53 140 RC5
17THR033 Railway 120 MGA54 522501 6451315 26963 -60 175 RC5
17THR034 Railway 132 MGA54 522321 6451214 275947 -55 127 RC5
17THR035 Railway 156 MGA54 522259 6451120 275749 -552 130 RC5
17THR036 Railway 92 MGA54 522186 6450998 275339 -612 130 RC5
17THR037 Railway 126 MGA54 522148 6450941 274202 -55 126 RC5
17THR038 Railway 168 MGA54 521927 6450619 289555 -55 108 RC5
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 25
Historic down-hole information
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
67TH01 Pyrite Hill 3042 MGA94_54 518564805 644946003 280643 -55 2606 DDH1
70TH02 Pyrite Hill 1486 MGA94_54 51827242 644968054 28408 -61 2186 DDH1
70TH03 Pyrite Hill 1414 MGA94_54 51844985 644921188 28981 -62 2836 DDH1
70BH01 Big Hill 1027 MGA94_54 52085056 64493085 28456 -47 3186 DDH1
70BH02 Big Hill 1039 MGA94_54 52078612 64492644 2801 -50 3186 DDH1
80PYH13 Pyrite Hill 77 MGA94_54 5183582 64490377 29035 -50 2807 DDH1
80PYH14 Pyrite Hill 3003 MGA94_54 51866118 644928762 27796 -60 2807 DDH1
80PYH03 Pyrite Hill 35 MGA94_54 5182515 64495699 2994 -60 2207 PDDH2 2280BGH09 Big Hill 1005 MGA94_54 52065743 644929252 27280 -50 1447 DDH1
80PYH01 Pyrite Hill 2453 MGA94_54 5182462 64495657 3011 -60 2027 PDDH2 680PYH02 Pyrite Hill 513 MGA94_54 5182607 64495742 2976 -60 2207 PDDH2 335880PYH04 Pyrite Hill 55 MGA94_54 51836655 644923174 30834 -60 2957 PDDH2 38780PYH05 Pyrite Hill 936 MGA94_54 51822697 644967819 28518 -49 2227 PDDH2 1880PYH06 Pyrite Hill 855 MGA94_54 51816348 64497573 28373 -544 2227 PDDH2 1880PYH07 Pyrite Hill 945 MGA94_54 51808406 644981836 28516 -55 2227 PDDH2 1280PYH08 Pyrite Hill 110 MGA94_54 51800954 644988543 28614 -60 2227 PDDH2 880PYH09 Pyrite Hill 1005 MGA94_54 5179174 644993176 28655 -485 2227 PDDH2 880PYH10 Pyrite Hill 1453 MGA94_54 51839296 644956596 28553 -50 2227 PDDH2 25580PYH11 Pyrite Hill 1031 MGA94_54 51844096 644932952 29725 -50 2807 PDDH2 1880PYH12 Pyrite Hill 1095 MGA94_54 51840728 644913731 29263 -50 2807 PDDH2 4280BGH05 Big Hill 5486 MGA94_54 52095535 644953441 28893 -60 1637 RCDDH3 45598TC01 Railway 100 MGA94_54 52275006 645133973 26727 -60 1589 RC5
98TC02 Railway 100 MGA94_54 52239241 645138683 26678 -60 1409 RC5
98TC03 Big Hill 84 MGA94_54 52081645 644936939 31305 -60 1359 RC5
98TC04 Big Hill 13825 MGA94_54 52086005 644945085 30409 -60 1409 RC5
98TC05 Big Hill 70 MGA94_54 520728 644932807 28863 -50 1229 RC5
98TC06 Big Hill 108 MGA94_54 520715 6449343 28513 -60 1259 RC5
98TC07 Big Hill 120 MGA94_54 52078597 644938821 29922 -50 1339 RC5
98TC08 Big Hill 90 MGA94_54 52080195 644947781 29101 -60 1509 RC5
98TC09 Big Hill 114 MGA94_54 52082221 644946079 29625 -60 1339 RC5
98TC10 Big Hill 134 MGA94_54 521018 6449576 2815 -50 1729 RC5
98TC11 Railway 35 MGA94_54 5224112 645137396 26701 -60 1329 RC5
80BGH06 Big Hill 6804 MGA94_54 520880 6449472 299 -60 1707 RCDDH3 5880BGH08 Big Hill 797 MGA94_54 52076879 644939093 29629 -60 1267 RCDDH3 69980BGH07 Big Hill 23 MGA94_54 52113656 6449599 27411 -60 1777 RC5
93MGM01 Pyrite Hill 70 MGA94_54 51818544 644971377 28628 -60 2228 RDDH4 2493MGM02 Pyrite Hill 180 MGA94_54 51851545 644945467 28479 -60 2588 RDDH4 4811PHR01 Pyrite Hill 150 MGA94_54 51843547 644907276 28534 -60 27906 RC5
11PHR02 Pyrite Hill 198 MGA94_54 51849992 644915931 28379 -60 27906 RC5
11PHR03 Pyrite Hill 240 MGA94_54 5185603 644918961 28026 -60 27906 RC5
11PHR04 Pyrite Hill 186 MGA94_54 51852863 6449257 28403 -60 27906 RC5
11PHR05 Pyrite Hill 234 MGA94_54 51858425 644939762 28022 -60 25906 RC5
11PHR06 Pyrite Hill 180 MGA94_54 5184909 644952259 28402 -60 23406 RC5
11PHR07 Pyrite Hill 174 MGA94_54 51841347 64495929 28286 -60 21906 RC5
11PHR08 Pyrite Hill 180 MGA94_54 51834274 644965585 28288 -60 21806 RC5
11PSR01 Pyrite Hill 59 MGA94_54 51874273 6448864 26838 -60 25806 RC5
11PSR02 Pyrite Hill 132 MGA94_54 51871938 644896001 27041 -60 25506 RC5
11PSR03 Pyrite Hill 78 MGA94_54 51868699 644905535 27279 -60 25506 RC5
12BER01 Railway 157 MGA94_54 52166731 644989323 27769 -60 141 RC5
12BER02 Railway 132 MGA94_54 52121267 644969067 27353 -60 162 RC5
12BER03 Railway 151 MGA94_54 52187901 645043547 28859 -60 102 RC5
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 26
Historic down-hole information (continued)
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
12BER04 Railway 148 MGA94_54 52235392 645126835 27435 -60 131 RC5
12BER05 Railway 145 MGA94_54 52243947 645116784 29973 -60 124 RC5
12BER06 Railway 169 MGA94_54 52248137 645109135 29595 -60 118 RC5
12BER07 Railway 115 MGA94_54 52232372 645074875 27791 -60 144 RC5
12BER08 Railway 193 MGA94_54 52222079 64508118 27316 -60 129 RC5
12BER09 Railway 13975 MGA94_54 52210125 645088144 27591 -60 129 RC5
12BER10 Railway 151 MGA94_54 52195345 645071618 28449 -60 129 RC5
12BER11 Railway 193 MGA94_54 52273722 645137661 26583 -60 153 RC5
12BER12 Railway 111 MGA94_54 52290973 645151676 27736 -60 153 RC5
12BER13 Railway 205 MGA94_54 52288381 645155754 27103 -60 156 RC5
12BER14 Railway 151 MGA94_54 52312483 645163707 28836 -60 152 RC5
12BER15 Railway 109 MGA94_54 5233113 64518417 28395 -60 154 RC5
12BER16 Railway 115 MGA94_54 52299408 645159199 27595 -60 156 RC5
12BER17 Railway 1155 MGA94_54 5225165 645131494 2691 -60 153 RC5
12BER18 Railway 157 MGA94_54 52233275 645128131 27229 -60 129 RC5
12BER19 Railway 97 MGA94_54 52224055 645106715 27616 -60 135 RC5
12BER20 Railway 120 MGA94_54 52129169 644973363 27695 -60 165 RC5
13BED01 Railway 3492 MGA94_54 52248021 645109243 29601 -60 3007 DDH1
16DM01 Pyrite Hill 1616 MGA94_54 51841138 644959389 28269 -60 2155 DDH1
16DM02 Pyrite Hill 1834 MGA94_54 51852662 644926158 28418 -60 2850 DDH1
16DM03 Big Hill 1265 MGA94_54 5210371 644956749 28301 -60 1585 DDH1
16DM04 Big Hill 1054 MGA94_54 52081474 64494644 29618 -55 1285 DDH1
16DM05 Railway 2465 MGA94_54 5221037 645088187 27662 -60 1285 DDH1
16DM06 Railway 1604 MGA94_54 52291157 645151913 2785 -60 1525 DDH1
16DM07 Railway 2425 MGA94_54 52299526 645159826 27636 -60 1561 DDH1
16DM08 Railway 2585 MGA94_54 52235145 645127307 27385 -60 1309 DDH1
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 27
Down hole length and interception depth ndash 2017 holes
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THD01 34 123 89 982 94 87
including 35 41 6 1143 119 106
and 50 55 5 1311 131 115
and 81 122 41 1366 118 11
17THD02 47 134 87 911 88 92
including 48 77 29 1238 111 114
and 116 134 18 1199 110 111
17THD03 40 635 235 894 116 108
including 49 63 14 1076 143 124
17THD04 20 29 9 1033 86 872 96 24 703 88 81
17THD05 44 60 16 993 98 85
including 44 56 12 1094 109 94
71 76 5 840 64 6317THD06 39 85 46 1136 114 101
including 40 70 30 1227 122 104
and 76 85 9 1148 107 100
17THD07 15 128 113 879 81 88
including 47 55 8 1048 117 103
and 61 102 41 1452 125 123
142 152 10 704 6 102199 204 5 706 49 65
17THR001 27 63 36 1075 106 104
including 37 63 26 1280 119 115
75 84 9 755 91 139
17THR002 37 43 6 711 69 82
91 136 45 983 98 105
including 102 136 34 1190 117 118
17THR003 4 59 55 937 93 94
including 10 46 36 1212 116 110
17THR004 49 146 97 888 102 102
including 51 113 62 1051 114 113
17THR005 52 72 20 1053 128 126
including 53 63 10 1145 125 130
17THR006 14 74 60 754 86 87
including 17 44 27 1176 125 121
17THR007 5 22 17 837 0 125
including 12 19 7 1049 0 105
128 154 26 1034 114 115
including 128 146 18 1321 144 143
17THR008 37 78 41 1319 122 11217THR009 29 65 36 957 94 92including 34 60 26 1150 111 102
100 105 5 833 129 12717THR010 51 57 6 729 49 5317THR011 30 83 53 1116 12 109
including 31 62 31 1423 155 135
17THR012 50 117 67 748 75 86
including 59 67 8 1084 103 126
and 75 102 27 1120 110 113
172 177 5 725 64 64
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 28
Down hole length and interception depth ndash 2017 holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THR013 19 73 54 888 54 5
including 19 29 10 2576 88 77
17THR014 12 45 33 749 81 74
including 25 33 8 1148 113 94
17THR015 40 48 8 995 89 8117THR016 66 115 49 1096 129 134
including 66 81 15 1184 142 139
and 89 114 25 1183 134 141
17THR017 54 112 58 1383 132 128
including 56 85 29 2042 183 158
17THR018 47 63 16 1124 151 14117THR019 42 59 17 1032 107 114
17THR020 29 49 20 1067 116 115
including 29 36 7 1352 135 126
17THR021 44 64 20 1204 131 12717THR022 101 138 37 1152 107 1217THR023 91 137 46 1271 139 133
including 91 97 6 1953 187 166
and 114 125 11 2707 311 265
17THR027 29 54 25 1176 126 118
including 30 47 17 1382 141 125
Down hole length and interception depth ndash historic holes
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
11PHR02 74 114 40 875 108 116
11PHR03 150 162 12 750 83 96
11PHR03 163 190 27 732 106 119
11PHR03 206 227 21 988 117 13
11PHR04 124 172 48 1049 128 129
11PHR05 197 219 22 1138 107 133
11PHR06 104 135 31 854 83 115
11PHR06 155 171 16 1315 12 122
11PHR07 96 147 51 941 95 99
11PHR08 103 115 12 1417 139 148
11PHR08 126 144 18 1048 126 142
12BER01 115 139 24 768 72 74
12BER02 18 25 7 1062 103 93
12BER02 113 123 10 907 85 86
12BER04 41 90 49 1191 114 127
12BER04 121 126 5 1241 9 112
12BER05 33 39 6 1109 79 92
12BER05 65 76 11 721 63 66
12BER06 131 169 38 844 83 128
12BER07 38 43 5 704 10 101
12BER09 33 92 59 841 9 116
12BER11 31 62 31 738 84 126
12BER11 92 159 67 1061 10 131
12BER11 173 193 20 737 67 83
12BER12 27 81 54 1430 181 189
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 29
Down hole length and interception depth ndash historic holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
12BER13 21 42 21 761 74 91
12BER13 65 75 10 1882 204 216
12BER14 28 55 27 1013 125 129
12BER16 25 100 75 1008 106 107
12BER17 92 99 7 739 6 63
12BER18 117 157 40 1017 112 114
12BER19 34 56 22 1151 104 108
12BER19 68 75 7 780 61 6
12BER20 21 46 25 731 69 75
13BED01 266 2915 255 872 85 78
16DM01 96 147 51 851 91 86
16DM02 127 172 45 1118 138 136
16DM03 104 111 7 838 103 9
16DM04 91 99 8 887 91 84
16DM05 30 103 73 793 82 9
16DM05 199 211 12 830 251 221
16DM06 28 84 56 1280 162 167
16DM06 138 146 8 722 78 112
16DM07 35 60 25 1232 111 111
16DM07 71 104 33 1224 133 134
16DM08 76 100 24 1026 11 12
16DM08 165 177 12 921 122 126
17THD01 34 123 89 982 94 87
17THD02 47 134 87 911 88 92
17THD03 40 635 235 894 116 108
17THD04 20 29 9 1033 86 8
17THD04 72 96 24 703 88 81
17THD05 44 60 16 993 98 85
17THD05 71 76 5 840 64 63
17THD06 39 85 46 1136 114 101
17THD07 15 128 113 879 81 88
17THD07 142 152 10 704 6 102
17THD07 199 204 5 706 49 65
17THR001 27 63 36 1075 106 104
17THR001 75 84 9 755 91 139
17THR002 37 43 6 711 69 82
17THR002 91 136 45 983 98 105
17THR003 4 59 55 937 93 94
17THR004 49 146 97 888 102 102
17THR005 52 72 20 1053 128 126
17THR006 14 74 60 754 86 87
17THR007 5 22 17 837 0 125
17THR007 128 154 26 1034 114 115
17THR008 37 78 41 1319 122 112
17THR009 29 65 36 957 94 92
17THR009 100 105 5 833 129 127
17THR010 51 57 6 729 49 53
17THR011 30 83 53 1116 12 109
17THR012 50 117 67 748 75 86
17THR012 172 177 5 725 64 64
17THR013 19 73 54 888 54 5
17THR014 12 45 33 749 81 74
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 30
Down hole length and interception depth ndash historic holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THR015 40 48 8 995 89 81
17THR016 66 115 49 1096 129 134
17THR017 54 112 58 1383 132 128
17THR018 47 63 16 1124 151 141
17THR019 42 59 17 1032 32 114
17THR020 29 49 20 1067 116 115
17THR021 44 64 20 1204 131 127
17THR022 101 138 37 1152 107 12
17THR023 91 137 46 1271 139 133
17THR027 29 54 25 1176 126 118
67TH01 12344 20001 7657 979 0 0
70BH01 3962 5334 1372 3323 31 0
70BH01 6431 8443 2012 1203 95 0
70BH02 7406 8686 128 704 75 0
70TH02 78 841 61 1666 175 154
70TH02 871 1021 15 1661 8 72
70TH03 777 1295 518 1016 129 132
80BGH05 39 49 10 752 0 0
80BGH06 18 6804 5004 969 0 0
80BGH08 44 7815 3415 939 0 0
80PYH01 75 17 95 725 0 0
80PYH02 341 4825 1415 1121 0 0
80PYH03 23 35 12 711 0 0
80PYH04 3975 55 1525 735 0 0
80PYH05 367 65 283 1160 118 0
80PYH06 54 62 8 905 0 0
80PYH07 67 794 124 1113 125 0
80PYH10 4845 1374 8895 831 86 0
80PYH11 346 465 119 916 8 0
80PYH11 572 9105 3385 1239 106 0
80PYH12 302 365 63 791 102 0
80PYH12 8515 908 565 857 146 0
80PYH14 2518 2734 216 1252 131 0
93MGM02 85 160 75 941 85 0
98TC01 20 47 27 744 91 126
98TC01 48 71 23 917 119 164
98TC03 34 45 11 1480 55 6
98TC03 68 79 11 1095 43 42
98TC04 84 94 10 966 39 4
98TC04 107 133 26 771 77 82
98TC05 24 62 38 754 64 7
98TC06 66 72 6 727 104 111
98TC06 76 101 25 767 101 106
98TC07 35 46 11 1546 165 171
98TC07 61 82 21 728 91 94
98TC09 32 39 7 716 49 174
98TC09 82 107 25 732 6 67
98TC10 101 125 24 732 79 8
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 31
Criteria JORC Code Explanation Commentary
Data aggregation methods
a In reporting Exploration Results weighting averaging techniques maximum andor minimum grade truncations (eg cutting of high grades) and cut-off grades are usually Material and should be stated
a Where aggregate intercepts incorporate short lengths of high grade results and longer lengths of low grade results the procedure used for such aggregation should be stated and some typical examples of such aggregations should be shown in detail
a The assumptions used for any reporting of metal equivalent values should be clearly stated
Drilling a Drill hole intercept grades are typically reported as down-hole
length-weighted averages with any non-recovered sample within the reported intervals treated as no grade The cut-off used for selecting significant intersections is selected to reflect the overall tenor of mineralisation in most cases 500ppm cobalt
a No top cuts have been applied when calculating average grades for reported significant intersections
a No metal equivalent values are reported
Relationship between mineralis- ation widths and intercept lengths
a These relationships are particularly important in the reporting of Exploration Results
a If the geometry of the mineralisation with respect to the drillhole angle is known its nature should be reported
a If it is not known and only the down hole lengths are reported there should be a clear statement to this effect (eg lsquodown hole length true width not knownrsquo)
a Drill holes at the Thackaringa project are typically angled at 50deg or 60deg and drilled perpendicular to the mineralised trend with drilling orientations adjusted along strike to accommodate folded geological sequences
a Mineralisation at the Big Hill and Railway prospects is steeply dipping and consequently mineralised intersections will be greater than true width At Pyrite Hill mineralisation is gently dipping and mineralised intersections will be close to true width
a There is insufficient geological knowledge to accurately estimate true widths and as such all drill intersections are reported as down hole lengths
Diagrams a Appropriate maps and sections (with scales) and tabulations of intercepts should be included for any significant discovery being reported These should include but not be limited to a plan view of drill hole collar locations and appropriate sectional views
a Appropriate maps and sections are presented in the accompa-nying ASX release
Balanced reporting
a Where comprehensive reporting of all exploration results is not practicable representative reporting of both low and high grades andor widths should be practiced to avoid misleading reporting of Exploration Results
a Only mineralised drill hole intersections regarded as highly anomalous and of economic interest are reported The proportion of each hole represented by the reported intervals can be ascertained from the sum of the reported intervals divided by the total drill hole depth
a All assay results for drill holes included in the various Mineral Resource estimates have been considered and comprise results not necessarily regarded as anomalous
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 32
Criteria JORC Code Explanation Commentary
Other substantive exploration data
a Other exploration data if meaningful and material should be reported including (but not limited to) geological obser-vations geophysical survey results geochemical survey results bulk samples ndash size and method of treatment metallurgical test results bulk density groun d- water geotechnical and rock characteristics potential deleterious or contaminating substances
a No further exploration data is deemed material to the results presented in this release
Further work a The nature and scale of planned further work (eg tests for lateral extensions or depth extensions or large-scale step-out drilling)
a Diagrams clearly highlighting the areas of possible extensions including the main geological interpretations and future drilling areas provided this information is not commercially sensitive
a The nature and scale of planned further work will be determined following the completion of revised Mineral Resource estimation for the Thackaringa deposits scheduled for May 2017
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 6
Pyrite HillThe Pyrite Hill deposit is hosted within an extensively metamorphosed pyrite-albite-quartz gneiss The deposit has a strike length of 1200m and dips moderately to the east (Figure 5)
The drilling at Pyrite Hill comprised four DD holes for a total of 451m and 12 RC holes for a total 1308m The RC program was designed to close the spacing between existing holes to allow recalculation of the Mineral Resource the DD program comprised holes to twin existing RC holes and to provide material for metallurgical testwork
Pyrite Hill results
At Pyrite Hill assays confirm the down-dip mineralisation within the host lithology Best mineralised intercepts include
a Drillhole 17THD01 ndash 89m 982ppm Co 94 S and 87 Fe from 34m drill depth
a Drillhole 17THR016 ndash 49m 1096ppm Co 129 S and 134 Fe from 66m drill depth
a Drillhole 17THR017 ndash 58m 1383ppm Co 132 S and 128 Fe from 54m drill depth and
a Drillhole 17THR021 ndash 20m 1204ppm Co 131 S and 127 Fe from 44m drill depth
Figure 4 Logging ndash Thackaringa Diamond Drilling CoresFor
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 7
Figure 5 Plan view of Pyrite Hill
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Figure 6 Pyrite Hill X-section along plane of 17THR017 For
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 9
Big HillThe Big Hill deposit is an off-set southwestern extension of the high-grade metamorphic host at Railway The drilling at Big Hill comprised two diamond holes for a total of 219m and three RC holes for a total of 314m The RC program was designed to test the mineralisation at sparsely explored north-eastern end of the prospect at an interpreted offset fault zone between Big Hill and Railway The diamond program comprised holes to provide solid core to assist the structural interpretation of this complex hinge structure
Big Hill results
The 2017 drilling at Big Hill has discovered some structural complications at a fault zone nevertheless some of the highest-yet cobalt mineralisation was intersected in this section Best mineralised intercepts include
a Drillhole 17THR013 ndash 54m 888ppm Co 54 S and 50 Fe from 19m drill depth
Figure 7 Field Crew - RC Drill Rig - Railway Deposit
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 10
Figure 8 Plan view of Big HillFor
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Figure 9 Big Hill X-section along plane of 17THR013For
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 12
Cobalt Blue BackgroundCobalt Blue (ldquoCOBrdquo) is an exploration company focussed on green energy technology and strategic development to upgrade the existing mineral resource at the Thackaringa Cobalt Project in New South Wales This strategic metal is in strong demand for new generation batteries particularly lithium-ion batteries now being widely used in clean energy systems
COB has entered into a farm-in joint venture agreement with Broken Hill Prospecting Limited (ldquoBPLrdquo) in which COB acquired an initial 51 interest in the Thackaringa Cobalt Project COB will undertake exploration and development programs at the Thackaring Cobalt Project and subject to the achievement of milestones will acquire 100 of the Thackaringa Cobalt Project
The Thackaringa Project 23 km west of Broken Hill and 400km by rail from Port Pirie consists of four granted tenements (EL6622 EL8143 ML86 and ML87) with total area of 63 km2 The main target for exploration is well known and contains documented large tonnage cobalt bearing pyrite deposits The project area is under-explored with the vast majority of historical exploration directed at or around the outcropping pyritic cobalt deposits at Pyrite Hill and Big Hill
Potential to extend the Mineral Resource at Pyrite Hill Big Hill Railway and the other prospects is high Numerous other prospects within COBrsquos tenement package are early stage and under-explored
Looking forward we would like our shareholders to keep in touch with COB updates and related news items which we will post on our website the ASX announcements platform as well as social media such as Facebook ( ) and LinkedIn ( ) Please donrsquot hesitate to join the lsquoCOB friendsrsquo on social media and also to join our newsletter mailing list at our website
Joe KaderavekChief Executive Officerjoekaderavekcobaltblueholdingscom(02) 9966 5629
Competent Person StatementThe information in this report that relates to exploration results Mineral Resources and Targets is based on information compiled by Mr Anthony Johnston BSc (Hons) who is a Member of the Australian Institute of Mining and Metallurgy and who is a non-executive director of Cobalt Blue Holdings Limited the Chief Executive Officer of Broken Hill Prospecting Limited and the Technical Manager of the Joint Venture Mr Johnston has sufficient experience which is relevant to the style of mineralisation and type of deposits under consideration and to the activity which he is undertaking to qualify as a Competent Person as defined in the 2004 amp 2012 Edition of the ldquoAustralasian Code for Reporting of Exploration Results Mineral Resources and Ore Reservesrdquo Mr Johnston consents to the inclusion in the announcement of the matters based on his information in the form and context that the information appears
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Appendix ndash JORC Code 2012 Edition ndash Table 1 Section 1 ndash Sampling Techniques and Data(Criteria in this section apply to all succeeding sections)
Criteria JORC Code Explanation Commentary
Sampling techniques
a Nature and quality of sampling (eg cut channels random chips or specific specialised industry standard measurement tools appropriate to the minerals under investigation such as down-hole gamma sondes or handheld XRF instruments etc) These examples should not be taken as limiting the broad meaning of sampling
a Include reference to measures taken to ensure sample repre-sentivity and the appropriate calibration of any measurement tools or systems used
a Aspects of the determination of mineralisation that are Material to the Public Report
a In cases where lsquoindustry standardrsquo work has been done this would be relatively simple (eg lsquoreverse circulation drilling was used to obtain 1 m samples from which 3 kg was pulverised to produce a 30 g charge for fire assayrsquo) In other cases more explanation may be required such as where there is coarse gold that has inherent sampling problems Unusual commodities or mineralisation types (eg submarine nodules) may warrant disclosure of detailed information
Diamond Drilling (DD)Pre-1990a Diamond drilling was used to obtain core from which irregular
intervals reflecting visual mineralisation and geological logging were hand-split or sawn Samples were submitted for analysis using a mixed acid digestion and AAS methodology
Post-1990 a Diamond drilling (one drill hole) was used to obtain core from
which irregular intervals reflecting visual mineralisation and geological logging were sawn (quarter core for HQ) Samples were submitted for analysis using a mixed acid digestion and ICP-OES methodology
2016 Metallurgical Drillinga Eight HQ diameter diamond drill holes (DD) were drilled at
the Thackaringa project in late 2016 They will be used as metallurgical reference holes and to twin some of the previous reverse circulation percussion (RC) holes for QAQC and assay comparison between DD and RC There were two holes drilled at Pyrite Hill two at Big Hill and four at Railway
a Diamond drilling was used to obtain core from which regular (one-metre) intervals were sawn with
a one half core dispatched for analysis using a mixed acid digestion and ICP-AES methodology
a the other half was further sawn such that one quarter- core was sent for metallurgical test work and the other quarter-core retained for archival purposes
Historical Reverse Circulation Drilling a RC drilling was used to obtain a representative sample by means
of riffle splitting with samples submitted for analysis using the above-mentioned methodologies
a Pre-2000 drill samples were assayed for a small and variable suite of elements (sometimes only cobalt) The post-2000 drill samples (5095 samples) are all assayed by ICP-MS for a suite of 33 elements
2017 Diamond Drilling Program a This announcement summarises the results from approximately
23 of the 2017 diamond drilling program Fourteen HQ diameter diamond drill holes (DD) were assayed at the Thackaringa project They will be used as metallurgical reference holes and to twin some of the previous reverse circulation percussion (RC) holes for QAQC and assay comparison between DD and RC There were four holes drilled at Pyrite Hill two at Big Hill and 8 at Railway
a Diamond drilling (17THD01-03) was used to obtain core from which regular (one-metre) intervals were sawn with
a one half core dispatched for analysis using a mixed acid digestion and ICP-AES methodology
a the other half was retained for future metallurgical test work and archival purposes
a Diamond drilling (17THD04-14) was used to obtain core from which regular (one-metre) intervals were sawn with
a one quarter core dispatched for analysis using a mixed acid digestion and ICP-AES methodology
a the other three quarters was retained for future metallurgical test work and archival purposes
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 14
Criteria JORC Code Explanation Commentary
Sampling techniques (continued)
2017 RC drilling Program a This announcement summarises the results from approximately
23 of the 2017 RC drilling program Thirty eight (38) RC drill holes were drilled amp assayed at the Thackaringa project They will be used to infill the drill spacing of historic holes to allow a re-estimation of the existing Mineral Resource There were 12 holes drilled at Pyrite Hill three at Big Hill and 23 at Railway
a RC drilling was used to obtain a representative sample by means of riffle splitting with samples submitted for analysis using the above-mentioned methodologies
a The 2017 drill samples are all assayed by ICP-MS for a suite of 33 elements
Drilling techniques
a Drill type (eg core reverse circulation open-hole hammer rotary air blast auger Bangka sonic etc) and details (eg core diameter triple or standard tube depth of diamond tails face-sampling bit or other type whether core is oriented and if so by what method etc)
a The Thackaringa drilling database comprises a total of forty-eight (48) DD holes and eighty-one (81) RC drill holes Diamond drilling was predominantly completed with standard diameter conventional HQ and NQ utilising RC and percussion pre-collars to an average 25 metres (see Drill-hole Information for further details) Early (1960-1970) drill holes utilised HX ndash AX diameters dependent on drilling depth Reverse circulation drilling utilised standard drill-hole diameters (48rdquo-55rdquo) with a face sampling hammer
a During 2013 a single diamond drill hole (13BED01) was completed at the Railway deposit using a triple tube system with a HQ3 diameter
Year Drilling Metres
1967 1 diamond drill hole 3042
1970 4 diamond drill holes 4966
1980 18 diamond and 1 RC drill hole 171123
1993 2 diamond drill holes 250
1998 11 RC drill holes 109325
2011 11 RC drill holes 1811
2012 20 RC drill holes 287425
2013 1 diamond drill hole 3492
2016 8 diamond drill holes 14848
2017 14 diamond drill holes and 38 RC drill holes 6472
Total 48 diamond and 81 RC drill holes 1684653
a This ASX release describes assay results from seven (7) diamond drill holes and twenty-four (24) RC holes completed and assayed by April 2017 Commencement of that drilling program was reported to ASX by the company in April 2017
a Diamond drilling was completed using a triple tube system with a HQ3 diameter
a Holes were drilled at angles between 40 and 60 degrees from horizontal and the resulting core was oriented as part of the logging process
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 15
Criteria JORC Code Explanation Commentary
Drill sample recovery
a Method of recording and assessing core and chip sample recoveries and results assessed
a Measures taken to maximise sample recovery and ensure representative nature of the samples
a Whether a relationship exists between sample recovery and grade and whether sample bias may have occurred due to preferential lossgain of finecoarse material
Diamond Drilling
a Historical core recoveries were accurately quantified through measurement of actual core recovered versus drilled intervals
a Historical diamond drilling employed conventional drilling techniques while diamond drilling completed by Broken Hill Prospecting utilised a triple-tube system to maximise sample recovery
a Core recovery of 997 was achieved during completion of drill hole 13BED01
a Core recovery of 98 was achieved during the 2016 diamond drilling program
a Core recovery of 933 was achieved during the 2017 diamond drilling program
a No relationship between sample recovery and grade has been observed
Reverse Circulation Drilling
a Reverse circulation sample recoveries were visually estimated during drilling programs Where the estimated sample recovery was below 100 this was recorded in field logs by means of qualitative observation
a Reverse circulation drilling employed adequate air (using a compressor and booster) to maximise sample recovery
a No relationship between sample recovery and grade has been observed
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 16
Criteria JORC Code Explanation Commentary
Logging a Whether core and chip samples have been geologically and geotechnically logged to a level of detail to support appropriate Mineral Resource estimation mining studies and metallurgical studies
a Whether logging is qualitative or quantitative in nature Core (or costean channel etc) photography
a The total length and percentage of the relevant intersections logged
a A qualified geoscientist has logged all reported drill holes in their entirety This logging has been completed to a level of detail considered to accurately support Mineral Resource estimation and metallurgical studies The parameters logged include lithology alteration mineralisation and oxidation These parameters are both qualitative and quantitative in nature
a Diamond drilling completed in 2017 by BPL has been subject to geotechnical logging with parameters recorded including rock-quality designation (RQD) fracture frequency and hardness
a During 2013 a considerable amount of historical drilling was re-logged through review of available core stored at Broken Hill as well the re-interpretation of historical reports where core or percussion samples no longer exist A total of eight (8) diamond drill holes and sixteen (16) diamond drill holes with pre-collars were re-logged as detailed below
Hole ID Deposit Max Depth Hole TypePre-Collar Depth (m)
67TH01 Pyrite Hill 3042 DDH1 ndash
70TH02 Pyrite Hill 1486 DDH1 ndash
70TH03 Pyrite Hill 1414 DDH1 ndash
70BH01 Big Hill 1027 DDH1 ndash
70BH02 Big Hill 1039 DDH1 ndash
80PYH13 Pyrite Hill 77 DDH1 ndash
80PYH14 Pyrite Hill 3003 DDH1 ndash
80BGH09 Big Hill 1005 DDH1 ndash
80PYH01 Pyrite Hill 2453 PDDH2 6
80PYH02 Pyrite Hill 513 PDDH2 3358
80PYH04 Pyrite Hill 55 PDDH2 387
80PYH05 Pyrite Hill 936 PDDH2 18
80PYH06 Pyrite Hill 855 PDDH2 18
80PYH07 Pyrite Hill 945 PDDH2 12
80PYH08 Pyrite Hill 110 PDDH2 8
80PYH09 Pyrite Hill 1005 PDDH2 8
80PYH10 Pyrite Hill 1453 PDDH2 255
80PYH11 Pyrite Hill 1031 PDDH2 18
80PYH12 Pyrite Hill 1095 PDDH2 42
80BGH05 Big Hill 5486 RCDDH3 455
80BGH06 Big Hill 6804 RCDDH3 58
80BGH08 Big Hill 797 RCDDH3 699
93MGM01 Pyrite Hill 70 RDDH4 24
93MGM02 Pyrite Hill 180 RDDH4 48
1 Diamond drill hole2 Diamond drill hole with percussion pre-collar3 Diamond drill hole with reverse circulation pre-collar4 Diamond drill hole with rotary air blast pre-collar
a Litho-geochemistry has been used to verify geological logging where available for drilling completed by Broken Hill Prospecting post 2010
a Representative reference trays of chips from reverse circulation drilling completed post 2010 have been retained by Broken Hill Prospecting
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 17
Criteria JORC Code Explanation Commentary
Sub-sampling techniques and sample preparation
a If core whether cut or sawn and whether quarter half or all core taken
a If non-core whether riffled tube sampled rotary split etc and whether sampled wet or dry
a For all sample types the nature quality and appropriateness of the sample preparation technique
a Quality control procedures adopted for all sub-sampling stages to maximise representivity of samples
a Measures taken to ensure that the sampling is representative of the in situ material collected including for instance results for field duplicatesecond-half sampling
a Whether sample sizes are appropriate to the grain size of the material being sampled
Diamond Drilling (DD)Pre-1990a Core samples were hand-split or sawn with re-logging of available
historical core (see Logging) indicating a 7030 (retainedassayed) split was typical The variation of sample ratios noted are consid-ered consistent with the sub-sampling technique (hand-splitting)
a No second half samples were submitted for analysis a It is considered water used for core cutting is unprocessed and
unlikely to have introduced sample contamination a Procedures relating to the definition of the line of cutting or splitting
are not available It is expected that lsquostandard industry practicersquo for the period was applied to maximize sample representivity
Post-1990 a NQ drilling core was sawn with half core submitted for assay a HQ drilling core was sawn with quarter core submitted for assay a No second half samples were submitted for analysis a It is considered water used for core cutting is unprocessed and
unlikely to have introduced sample contamination a Procedures relating to the definition of the line of cutting or splitting
are not available It is expected that lsquostandard industry practicersquo for the period was applied to maximise sample representivity
2016 Metallurgical Drilling a All HQ drill core was sawn into halves with each half then re-sawn
to provide 4 lengths of quarter core for each interval a One half core was submitted for assay a One quarter core was submitted for metallurgical test work a One quarter core was retained for archive a It is considered that the water used for core cutting is most
unlikely to have introduced sample contamination a Sample sawing and processing for test work were undertaken
according to lsquostandard industry practicersquo to maximise sample representivity
2017 Diamond Drilling a All HQ drill core was sawn into halves with each half then re-sawn to
provide 4 lengths of quarter core for each interval
a One quarter ndash one half core was submitted for assay
a One quarter ndash three quarter core was retained for archive
a It is considered that the water used for core cutting is most unlikely to have introduced sample contamination
a Sample sawing and processing for test work were undertaken according to lsquostandard industry practicersquo to maximise sample representivity
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 18
Criteria JORC Code Explanation Commentary
Sub-sampling techniques and sample preparation (continued)
Historical Reverse Circulation Drilling a Sub-sampling of reverse circulationpercussion chips was
achieved using a cyclone with cone or riffle splitter a During drilling operations the sample cyclone and splitter were
regularly cleaned to prevent down hole sample contamination a Dry sampling was achieved with the use of adequate air using a
compressor and booster where groundwater was encountered a During reverse circulation drilling completed by Broken Hill
Prospecting duplicate samples were collected at the time of drilling These were obtained by spearing the bulk material held in the PVC sacks using a spear made of 40mm diameter PVC pipe three samples were speared through the full depth of the bulk material and these were combined to form one sample
a The Thackaringa drilling database includes a total of 139 field duplicates collected during reverse circulation drilling This reflects a ratio of approximately one field duplicate in every 32 samples (31) for drill holes where duplicates were collected (31 drill holes for 4469 metres) and an overall ratio of one field duplicate in every 42 samples (24) for all reverse circulation drill holes (43 drill holes for 58015 metres)
a Statistical analysis of field duplicates collected during drilling completed by Broken Hill Prospecting (119 duplicates representing 86 of all field duplicates) considered 18 elements of which only chromium lanthanum and titanium show some bias in the duplicate samples For cobalt the confidence limits were evenly placed either side of zero and the duplicates are deemed to be representative of the original samples
2017 Reverse Circulation Drilling a Sub-sampling of reverse circulationpercussion chips was achieved
using a riffle splitter
a During drilling operations the splitter was regularly cleaned to prevent down hole sample contamination
a Dry sampling was achieved with the use of adequate air using a compressor and booster where groundwater was encountered
a During reverse circulation drilling completed by Broken Hill Prospecting duplicate samples were collected at the time of drilling These were obtained by riffle splitting the remnant bulk sample following collection of the primary split
a Field duplicate samples were collected regularly during drilling (for every 18th sample on average)
a Assay results received to date include analysis of 120 field duplicate pairs from 24 RC drill holes
a A measure of the average precision of the sampling sample preparation and assaying methods given by the mean per cent difference (MPD) assay values of the duplicate pairs is summarised below Overall the sampling and assay precision for Co Fe and S at economically significant grades is regarded as reasonable
RC Field Duplicate Pairs
Co Cut-Off Count Co MPD S MPD Fe MPD
All 120 13 16 9
200ppm 52 13 11 10
500ppm 34 12 9 9
1000ppm 20 8 7 7
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 19
Criteria JORC Code Explanation Commentary
Quality of assay data and laboratory tests
a The nature quality and appropriateness of the assaying and laboratory procedures used and whether the technique is considered partial or total
a For geophysical tools spectrometers handheld XRF instruments etc the parameters used in determining the analysis including instrument make and model reading times calibrations factors applied and their derivation etc
a Nature of quality control proce-dures adopted (eg standards blanks duplicates external laboratory checks) and whether acceptable levels of accuracy (ie lack of bias) and precision have been established
a The nature and quality of all assaying and laboratory procedures employed for samples obtained through drilling (diamond and reverse circulation) are considered lsquoindustry standardrsquo for the respective periods
a The assay techniques employed for drilling (diamond and reverse circulation) include mixed acid digestion with ICP-OES and AAS finishes These methods are considered appropriate for the targeted mineralisation and regarded as a lsquonear totalrsquo digestion technique with resistive phases not expected to affect cobalt analyses
a All samples have been processed at independent commercial laboratories including AMDEL Australian Laboratory Services (ALS) Analabs and Genalysis
a All samples from drilling completed by Broken Hill Prospecting during 2011-2012 were assayed at ALS in Orange New South Wales All samples from drilling completed by Broken Hill Prospecting during 2016-2017 were assayed at ALS Adelaide South Australia ALS is a NATA Accredited Laboratory and qualifies for JASANZ ISO90012008 quality systems ALS maintains robust internal QAQC procedures (including analysis of standards repeats and blanks)
a To monitor the accuracy of assay results from the 2017 Thackaringa drilling CRM standards were included in the assay sample stream every 24 samples (on average) for RC chips and every 30 samples for diamond core The CRM samples were purchased from Ore Research amp Exploration Pty Ltd and the results are summarised below
Cobalt Sulphur Iron
OREAS Standard Count plusmn1SD plusmn2SD plusmn3SD plusmn3SD+ plusmn1SD plusmn2SD plusmn3SD plusmn3SD+ plusmn1SD plusmn2SD plusmn3SD plusmn3SD+
160 Low S Blank (28ppm Co) 12 10 ndash ndash 2 7 ndash ndash 5 6 2 2 2
162 Medium Grade (631ppm Co) 53 37 12 3 ndash 32 18 3 ndash 14 12 13 14
163 Low Grade (230ppm Co) 40 30 8 2 ndash 7 25 7 1 2 3 2 33
165 High Grade (2445ppm Co) 13 11 2 ndash ndash 7 5 1 ndash 1 5 2 5
166 High Grade (1970ppm Co) 35 26 8 ndash 1 27 6 ndash 2 9 5 5 16
153 114 30 5 3 80 54 11 8 32 27 24 70
75 20 3 2 52 35 7 5 21 18 16 46
Cobalt CRM Standards
Internal COB assay QAQC protocols cobalt performed well with 95 standard analyses falling within two standard deviations of the certified value and 75 within one SD No systematic out-of-specification trends were identified and there was no discernible tendency for a particular Co standard to preferentially assay either higher or lower than the certified Co concentration
Cobalt Blanks
A number of blanks were also submitted with the RC chip and diamond core samples mdash the OREAS160 CRM is essentially a low-sulphide blank with respect to cobalt (28ppm) and the results of assay of this standard are summarised in Table 1 In addition five quartz sand blanks were submitted bracketing very pyrite-rich intervals in diamond drill holes 17THD06 and 17THD07 Overall the quartz sand blanks returned a maximum of 69ppm Co 004 S and 065 Fe which are regarded as similar to background values and any contamination during sample preparation at the assay laboratory is likely to be immaterial to the final results
Based on the assay of standards and blanks with 95 of the Co results falling within two standard deviations of the certified value it is concluded that the assay results for Co are likely to be representative for the material submitted with no additional source of inaccuracy or bias identified
Sulphur CRM Standards
sulphur was reasonably well-performed with 87 of the total 153 standard analyses falling within two standard deviations of the certified value and 95 within 3SD
Iron CRM Standards
Iron analysis of standards showed poor accuracy with a tendency to assay low mdash 46 of the assays fall outside of 3 SD typically but not exclusively lower than the certified value
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 20
Criteria JORC Code Explanation Commentary
Verification of sampling and assaying
a The verification of significant intersections by either inde-pendent or alternative company personnel
a The use of twinned holes
a Documentation of primary data data entry procedures data verification data storage (physical and electronic) protocols
a Discuss any adjustment to assay data
a Historical drilling intersections were internally verified by personnel employed by previous explorers including CRAE Pty Limited Central Austin Pty Limited and Hunter Resources Broken Hill Prospecting has completed a systematic review of the related data
a The Thackaringa drilling database exists in electronic form as a Microsoft Access database Information related to individual drill holes is stored in digital files as extracted from historical reports (typically including location plan section logs photos surveys assays and petrology)
a Historical drilling data available in electronic form has been re-formatted and imported into the drilling database
a Quantitative historical drilling data including assays have been captured electronically during systematic data compilation and validation completed by Broken Hill Prospecting
a Samples returning assays below detection limits are assigned half detection limit values in the database
a All significant intersections are verified by the Companyrsquos Exploration Manager and independent geological consultant
Location of data points
a Accuracy and quality of surveys used to locate drill holes (collar and down-hole surveys) trenches mine workings and other locations used in Mineral Resource estimation
a Specification of the grid system used
a Quality and adequacy of topographic control
a Historical drill collars have been relocated and surveyed using a differential GPS (DGPS) In the instances where no collar could be located the position has been derived from georeferenced historical plans
a During systematic data validation completed in 2016 three drill holes at Big Hill were found to be incorrectly located One collar was located and surveyed by GPS and two were digitised from georeferenced historical plans (reported to the nearest metre) as the collars had been destroyed These corrections were captured in the Big Hill Mineral Resource estimate
a Down hole surveys using digital cameras were completed on all post 2000 drilling Down hole surveys for some earlier drilling were estimated from hole trace and section data where raw survey data was not reported
a All 2017 Thackaringa drill hole collars were located and surveyed with DGPS by an independent surveyor with reported accuracy of plusmn005m in horizontal and vertical measurement
a Downhole surveys using digital cameras were completed on all 2017 drill-holes
a All data is recorded in the GDA94 datum UTM Zone 54 (MGA54)
a 3D validation of drilling data has been completed by independent geological consultants to support detailed geological modelling in Microminetrade software
a The quality of topographic control is deemed adequate in consideration of the results presented in this release
Data spacing and distribution
a Data spacing for reporting of Exploration Results
a Whether the data spacing and distribution is sufficient to estab-lish the degree of geological and grade continuity appropriate for the Mineral Resource and Ore Reserve estimation procedure(s) and classifications applied
a Whether sample compositing has been applied
a The data density of existing drill holes at Thackaringa has been materially increased by the 2017 drilling program which was undertaken primarily to undertake infill drilling
a Detailed geological mapping supported by drill-hole data of sufficient spacing and distribution to establish a 3D geological model
a The level of geological and grade continuity is appropriate for the Mineral Resource estimation methodologies used and the classifications applied (being wholly Inferred Mineral Resources) Note that a recalculation of the Mineral Resource using 2017 drilling and assay data will commence in mid-2017
a No sample compositing has been applied to reported intersections
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 21
Criteria JORC Code Explanation Commentary
Orientation of data in relation to geological structure
a Whether the orientation of sampling achieves unbiased sampling of possible structures and the extent to which this is known considering the deposit type
a If the relationship between the drilling orientation and the orientation of key mineralised structures is considered to have introduced a sampling bias this should be assessed and reported if material
a The 2017 drill holes at the Thackaringa project were typically angled at -500 or -600 to the horizontal and drilled perpendicular to the mineralised trend with drilling orientations adjusted along strike to accommodate folded geological sequences
a Mineralisation at the Big Hill and Railway prospects is steeply dipping and consequently mineralised intersections will be greater than true width At Pyrite Hill mineralisation is gently dipping and mineralised intersections will be close to true width
a The drilling orientation is not considered to have introduced a sampling bias on assessment of the current geological interpretation
Sample security
a The measures taken to ensure sample security
a Sample security procedures are considered to be lsquoindustry standardrsquo for the respective periods
a Following recent drilling completed by BPL samples were trucked by an independent courier directly from Broken Hill to ALS Adelaide
a BPL consider that risks associated with sample security are limited given the nature of the targeted mineralisation
Audits or reviews
a The results of any audits or reviews of sampling techniques and data
a In late 2016 an independent validation of the Thackaringa drilling database was completed
a The data validation process consisted of systematic review of drilling data (collars assays and surveys) for identification of transcription errors
a Following review historical drill hole locations were also validated against georeferenced historical maps to confirm their location
a Three (3) drill holes at Big Hill were found to be incorrectly located One collar was located and surveyed by GPS and two were digitised from georeferenced historical plans (reported to the nearest metre) as the collars had been destroyed These corrections were captured in the Big Hill Mineral Resource estimate
a Total depths for all holes were checked against original reports
a Final 3D validation of drilling data has been completed by independent geological consultants to support detailed geological modelling in Microminetrade software
a Audits and reviews of QAQC results and procedures are further described in preceding sections of this table including Quality of assay data and laboratory tests Sub-sampling techniques and sample preparation and Logging
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 22
Section 2 Reporting of Exploration Results(Criteria listed in the preceding section also apply to this section)
Criteria JORC Code Explanation Commentary
Mineral tenement and land tenure status
a Type reference namenumber location and ownership including agreements or material issues with third parties such as joint ventures partnerships overriding royalties native title interests historical sites wilderness or national park and environmental settings
a The security of the tenure held at the time of reporting along with any known impediments to obtaining a licence to operate in the area
a The Thackaringa Cobalt project is located approximately 25 kilometres west-southwest of Broken Hill and comprises four tenements with a total area of 63 km2
Tenement
Registered amp Beneficial Holder Minerals Grant Date Expiry Date
Annual Expenditure
Commit-ment
EL6622 Broken Hill Prospecting Limited (BPL)
Group 1 30082006 29082017 $47000
EL 8143 BPL Group 1 26072013 26072017 $14000
ML86 BPL Cobalt iron nickel platinum sulphur
05111975 04112017 $75000
ML87 BPL Cobalt iron nickel platinum sulphur
05111975 04112017 $75000
a The project tenure is subject to a Farm-In agreement between Cobalt Blue Holdings Limited (COB) and Broken Hill Prospecting Limited (BPL) The nature of this agreement is detailed in the COB Replacement Prospectus (as released 4 January 2017)
a The nearest residence (Thackaringa Station) is located approxi-mately three kilometres west of EL6622
a EL6622 is intersected by the Transcontinental Railway the Barrier Highway is located the north of the licence boundaries
a The majority of the project tenure is covered by Western Lands Lease which is considered to extinguish native title interest However Native Title Determination NC9732 (Barkandji Traditional Owners 8) is current over the area and may be relevant to Crown Land parcels (eg public roads) within the project area
a The project tenure is more than 90 kilometres from the nearest National Park and or Wilderness Area (Kinchega National Park) and approximately 20 kilometres south of the nearest Water Supply Reserve (Umberumberka Reservoir Water Supply Reserve)
a The Company is not aware of any impediments to obtaining a licence to operate in the area
Exploration done by other parties
a Acknowledgment and appraisal of exploration by other parties
a A detailed and complete record of all exploration activities undertaken prior to the BPL 2016 drilling program is appended to the JORC Table 1 which forms part of the Cobalt Blue Prospectus Document available on the COB website
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 23
Criteria JORC Code Explanation Commentary
Geology a Deposit type geological setting and style of mineralisation
Regional Geological Setting a The Thackaringa project is located in a deformed and metamor-
phosed Proterozoic supracrustal succession named the Willyama Supergroup which crops out as several inliers in western New South Wales including the Broken Hill Block (Willis et al 1982)
a Exploration by BPL Limited has been focused on the discovery of cobaltiferous pyrite deposits and Broken Hill type base-metal mineralisation both of which are known from historical exploration in the district
a The project area covers portions of the Broken Hill and Thackaringa group successions which host the majority of mineralisation in the region including the Broken Hill base-metal deposit The Sundown Group suite is also present The extensive sequence of quartz-albite-plagioclase rock that hosts the cobaltiferous pyrite mineralisation is interpreted as belonging to the Himalaya Formation which is stratigraphically at the top of the Thackaringa Group
Local Geological Setting a The oldest rocks in the region belong to the Curnamona Craton
which outcrops on the Broken Hill and Euriowie blocks a The overlying Proterozoic rocks have been broadly subdivided
into three major groupings of which the oldest groups are the highly deformed metasediments and igneous derived rocks of the Thackaringa and Broken Hill groups They comprise a major part of the Willyama Supergroup and host the giant Broken Hill massive Pb-Zn-Ag sulphide ore body EL6622 is within the Broken Hill block of the Curnamona Craton
Mineralisation Style a The Thackaringa Mineral deposits (Pyrite Hill Big Hill and Railway)
are characterised by large tonnage cobaltiferous-pyrite minerali-sation hosted within siliceous albitic gneisses and schists of the Himalaya Formation
a Cobalt mineralisation exists within stratabound pyritic horizons where cobalt is present within the pyrite lattice Mineralogical studies have indicated the majority of cobalt (~85) is found in solid solution with primary pyrite (Henley 1998)
a A strong correlation between pyrite content and cobalt grade is observed
a The regional geological setting indicates additional mineralisation targets including
a Stratiform Broken Hill Type (BHT) Copper-Lead-Zinc-Silver deposits
a Copper-rich BHT deposits a Stratiform to stratabound Copper-Cobalt-Gold deposits a Epigenetic Gold and Base metal deposits
Drill hole Information
a A summary of all information mat- erial to the understanding of the exploration results including a tab- ulation of the following information for all Material drill holes
a easting and northing of the drill hole collar
a elevation or RL (Reduced Level ndash elevation above sea level in metres) of the drill hole collar
a dip and azimuth of the hole
a down hole length and interception depth
a See drill holle summaries below
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 24
Drill hole summaries
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
17THD01 Pyrite Hill 1242 MGA54 518382 6449551 28906 -40 222 DDH1
17THD02 Pyrite Hill 1497 MGA54 518475 6449445 29054 -40 258 DDH1
17THD03 Pyrite Hill 785 MGA54 518370 6449190 30328 -40 2851 DDH1
17THD04 Big Hill 1198 MGA54 521078 6449589 27841 -45 1551 DDH1
17THD05 Big Hill 995 MGA54 521669 6449889 2785 -40 131 DDH1
17THD06 Railway 1655 MGA54 521970 6450705 2872 -45 128 DDH1
17THD07 Railway 2746 MGA54 522569 6451282 27067 -45 1565 DDH1
17THD08 Railway 1325 MGA54 522784 6451280 268881 -45 326 DDH1
17THD09 Railway 1205 MGA54 522905 6451511 278471 -40 1525 DDH1
17THD10 Railway 842 MGA54 522992 6451569 279779 -45 130 DDH1
17THD11 Railway 1115 MGA54 523109 6451682 280847 -40 1605 DDH1
17THD12 Railway 1265 MGA54 522796 6451419 272936 -40 14075 DDH1
17THD13 Railway 1055 MGA54 522836 6451456 276747 -40 1385 DDH1
17THD14 Pyrite Hill 99 MGA54 518375 6449089 29425 -60 285 DDH1
17THR001 Railway 156 MGA54 522615 6451277 267561 -60 120 RC5
17THR002 Railway 160 MGA54 522573 6451299 268511 -60 120 RC5
17THR003 Railway 96 MGA54 522124 6450868 27739 -60 130 RC5
17THR004 Railway 150 MGA54 522387 6451319 271453 -60 120 RC5
17THR005 Railway 72 MGA54 522024 6450783 282154 -60 120 RC5
17THR006 Railway 114 MGA54 522049 6450780 28401 -58 125 RC5
17THR007 Railway 180 MGA54 521965 6450699 286585 -59 125 RC5
17THR008 Railway 132 MGA54 521917 6450562 291682 -56 105 RC5
17THR009 Railway 120 MGA54 521906 6450496 292751 -58 105 RC5
17THR010 Railway 72 MGA54 521959 6450398 286445 -56 285 RC5
17THR011 Railway 126 MGA54 522302 6451169 276812 -56 120 RC5
17THR012 Railway 180 MGA54 522440 6451304 274931 -58 173 RC5
17THR013 Big Hill 102 MGA54 521750 6449942 28489 -60 1305 RC5
17THR014 Big Hill 104 MGA54 521628 6449796 277545 -53 130 RC5
17THR015 Big Hill 108 MGA54 521793 6449918 284847 -58 310 RC5
17THR016 Pyrite Hill 138 MGA54 518446 6449209 290391 -57 283 RC5
17THR017 Pyrite Hill 120 MGA54 518449 6449263 293147 -56 2815 RC5
17THR018 Pyrite Hill 78 MGA54 518027 6449806 289567 -60 222 RC5
17THR019 Pyrite Hill 72 MGA54 518105 6449754 287701 -55 222 RC5
17THR020 Pyrite Hill 66 MGA54 518166 6449695 288685 -60 222 RC5
17THR021 Pyrite Hill 78 MGA54 518183 6449717 286007 -60 222 RC5
17THR022 Pyrite Hill 156 MGA54 518510 6449306 28682 -55 281 RC5
17THR023 Pyrite Hill 150 MGA54 518506 6449377 289481 -57 2645 RC5
17THR024 Pyrite Hill 150 MGA54 518457 6449498 288137 -595 2285 RC5
17THR025 Pyrite Hill 114 MGA54 518311 6449609 287463 -60 222 RC5
17THR026 Pyrite Hill 114 MGA54 518268 6449681 284164 -60 222 RC5
17THR027 Pyrite Hill 72 MGA54 518243 6449646 287176 -60 222 RC5
17THR028 Railway 150 MGA54 522457 6451167 300659 -60 350 RC5
17THR029 Railway 162 MGA54 522482 6451084 295964 -60 175 RC5
17THR030 Railway 138 MGA54 522783 6451423 270814 -55 140 RC5
17THR031 Railway 120 MGA54 522945 6451566 27619 -55 145 RC5
17THR032 Railway 132 MGA54 522819 6451473 273712 -53 140 RC5
17THR033 Railway 120 MGA54 522501 6451315 26963 -60 175 RC5
17THR034 Railway 132 MGA54 522321 6451214 275947 -55 127 RC5
17THR035 Railway 156 MGA54 522259 6451120 275749 -552 130 RC5
17THR036 Railway 92 MGA54 522186 6450998 275339 -612 130 RC5
17THR037 Railway 126 MGA54 522148 6450941 274202 -55 126 RC5
17THR038 Railway 168 MGA54 521927 6450619 289555 -55 108 RC5
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 25
Historic down-hole information
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
67TH01 Pyrite Hill 3042 MGA94_54 518564805 644946003 280643 -55 2606 DDH1
70TH02 Pyrite Hill 1486 MGA94_54 51827242 644968054 28408 -61 2186 DDH1
70TH03 Pyrite Hill 1414 MGA94_54 51844985 644921188 28981 -62 2836 DDH1
70BH01 Big Hill 1027 MGA94_54 52085056 64493085 28456 -47 3186 DDH1
70BH02 Big Hill 1039 MGA94_54 52078612 64492644 2801 -50 3186 DDH1
80PYH13 Pyrite Hill 77 MGA94_54 5183582 64490377 29035 -50 2807 DDH1
80PYH14 Pyrite Hill 3003 MGA94_54 51866118 644928762 27796 -60 2807 DDH1
80PYH03 Pyrite Hill 35 MGA94_54 5182515 64495699 2994 -60 2207 PDDH2 2280BGH09 Big Hill 1005 MGA94_54 52065743 644929252 27280 -50 1447 DDH1
80PYH01 Pyrite Hill 2453 MGA94_54 5182462 64495657 3011 -60 2027 PDDH2 680PYH02 Pyrite Hill 513 MGA94_54 5182607 64495742 2976 -60 2207 PDDH2 335880PYH04 Pyrite Hill 55 MGA94_54 51836655 644923174 30834 -60 2957 PDDH2 38780PYH05 Pyrite Hill 936 MGA94_54 51822697 644967819 28518 -49 2227 PDDH2 1880PYH06 Pyrite Hill 855 MGA94_54 51816348 64497573 28373 -544 2227 PDDH2 1880PYH07 Pyrite Hill 945 MGA94_54 51808406 644981836 28516 -55 2227 PDDH2 1280PYH08 Pyrite Hill 110 MGA94_54 51800954 644988543 28614 -60 2227 PDDH2 880PYH09 Pyrite Hill 1005 MGA94_54 5179174 644993176 28655 -485 2227 PDDH2 880PYH10 Pyrite Hill 1453 MGA94_54 51839296 644956596 28553 -50 2227 PDDH2 25580PYH11 Pyrite Hill 1031 MGA94_54 51844096 644932952 29725 -50 2807 PDDH2 1880PYH12 Pyrite Hill 1095 MGA94_54 51840728 644913731 29263 -50 2807 PDDH2 4280BGH05 Big Hill 5486 MGA94_54 52095535 644953441 28893 -60 1637 RCDDH3 45598TC01 Railway 100 MGA94_54 52275006 645133973 26727 -60 1589 RC5
98TC02 Railway 100 MGA94_54 52239241 645138683 26678 -60 1409 RC5
98TC03 Big Hill 84 MGA94_54 52081645 644936939 31305 -60 1359 RC5
98TC04 Big Hill 13825 MGA94_54 52086005 644945085 30409 -60 1409 RC5
98TC05 Big Hill 70 MGA94_54 520728 644932807 28863 -50 1229 RC5
98TC06 Big Hill 108 MGA94_54 520715 6449343 28513 -60 1259 RC5
98TC07 Big Hill 120 MGA94_54 52078597 644938821 29922 -50 1339 RC5
98TC08 Big Hill 90 MGA94_54 52080195 644947781 29101 -60 1509 RC5
98TC09 Big Hill 114 MGA94_54 52082221 644946079 29625 -60 1339 RC5
98TC10 Big Hill 134 MGA94_54 521018 6449576 2815 -50 1729 RC5
98TC11 Railway 35 MGA94_54 5224112 645137396 26701 -60 1329 RC5
80BGH06 Big Hill 6804 MGA94_54 520880 6449472 299 -60 1707 RCDDH3 5880BGH08 Big Hill 797 MGA94_54 52076879 644939093 29629 -60 1267 RCDDH3 69980BGH07 Big Hill 23 MGA94_54 52113656 6449599 27411 -60 1777 RC5
93MGM01 Pyrite Hill 70 MGA94_54 51818544 644971377 28628 -60 2228 RDDH4 2493MGM02 Pyrite Hill 180 MGA94_54 51851545 644945467 28479 -60 2588 RDDH4 4811PHR01 Pyrite Hill 150 MGA94_54 51843547 644907276 28534 -60 27906 RC5
11PHR02 Pyrite Hill 198 MGA94_54 51849992 644915931 28379 -60 27906 RC5
11PHR03 Pyrite Hill 240 MGA94_54 5185603 644918961 28026 -60 27906 RC5
11PHR04 Pyrite Hill 186 MGA94_54 51852863 6449257 28403 -60 27906 RC5
11PHR05 Pyrite Hill 234 MGA94_54 51858425 644939762 28022 -60 25906 RC5
11PHR06 Pyrite Hill 180 MGA94_54 5184909 644952259 28402 -60 23406 RC5
11PHR07 Pyrite Hill 174 MGA94_54 51841347 64495929 28286 -60 21906 RC5
11PHR08 Pyrite Hill 180 MGA94_54 51834274 644965585 28288 -60 21806 RC5
11PSR01 Pyrite Hill 59 MGA94_54 51874273 6448864 26838 -60 25806 RC5
11PSR02 Pyrite Hill 132 MGA94_54 51871938 644896001 27041 -60 25506 RC5
11PSR03 Pyrite Hill 78 MGA94_54 51868699 644905535 27279 -60 25506 RC5
12BER01 Railway 157 MGA94_54 52166731 644989323 27769 -60 141 RC5
12BER02 Railway 132 MGA94_54 52121267 644969067 27353 -60 162 RC5
12BER03 Railway 151 MGA94_54 52187901 645043547 28859 -60 102 RC5
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 26
Historic down-hole information (continued)
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
12BER04 Railway 148 MGA94_54 52235392 645126835 27435 -60 131 RC5
12BER05 Railway 145 MGA94_54 52243947 645116784 29973 -60 124 RC5
12BER06 Railway 169 MGA94_54 52248137 645109135 29595 -60 118 RC5
12BER07 Railway 115 MGA94_54 52232372 645074875 27791 -60 144 RC5
12BER08 Railway 193 MGA94_54 52222079 64508118 27316 -60 129 RC5
12BER09 Railway 13975 MGA94_54 52210125 645088144 27591 -60 129 RC5
12BER10 Railway 151 MGA94_54 52195345 645071618 28449 -60 129 RC5
12BER11 Railway 193 MGA94_54 52273722 645137661 26583 -60 153 RC5
12BER12 Railway 111 MGA94_54 52290973 645151676 27736 -60 153 RC5
12BER13 Railway 205 MGA94_54 52288381 645155754 27103 -60 156 RC5
12BER14 Railway 151 MGA94_54 52312483 645163707 28836 -60 152 RC5
12BER15 Railway 109 MGA94_54 5233113 64518417 28395 -60 154 RC5
12BER16 Railway 115 MGA94_54 52299408 645159199 27595 -60 156 RC5
12BER17 Railway 1155 MGA94_54 5225165 645131494 2691 -60 153 RC5
12BER18 Railway 157 MGA94_54 52233275 645128131 27229 -60 129 RC5
12BER19 Railway 97 MGA94_54 52224055 645106715 27616 -60 135 RC5
12BER20 Railway 120 MGA94_54 52129169 644973363 27695 -60 165 RC5
13BED01 Railway 3492 MGA94_54 52248021 645109243 29601 -60 3007 DDH1
16DM01 Pyrite Hill 1616 MGA94_54 51841138 644959389 28269 -60 2155 DDH1
16DM02 Pyrite Hill 1834 MGA94_54 51852662 644926158 28418 -60 2850 DDH1
16DM03 Big Hill 1265 MGA94_54 5210371 644956749 28301 -60 1585 DDH1
16DM04 Big Hill 1054 MGA94_54 52081474 64494644 29618 -55 1285 DDH1
16DM05 Railway 2465 MGA94_54 5221037 645088187 27662 -60 1285 DDH1
16DM06 Railway 1604 MGA94_54 52291157 645151913 2785 -60 1525 DDH1
16DM07 Railway 2425 MGA94_54 52299526 645159826 27636 -60 1561 DDH1
16DM08 Railway 2585 MGA94_54 52235145 645127307 27385 -60 1309 DDH1
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 27
Down hole length and interception depth ndash 2017 holes
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THD01 34 123 89 982 94 87
including 35 41 6 1143 119 106
and 50 55 5 1311 131 115
and 81 122 41 1366 118 11
17THD02 47 134 87 911 88 92
including 48 77 29 1238 111 114
and 116 134 18 1199 110 111
17THD03 40 635 235 894 116 108
including 49 63 14 1076 143 124
17THD04 20 29 9 1033 86 872 96 24 703 88 81
17THD05 44 60 16 993 98 85
including 44 56 12 1094 109 94
71 76 5 840 64 6317THD06 39 85 46 1136 114 101
including 40 70 30 1227 122 104
and 76 85 9 1148 107 100
17THD07 15 128 113 879 81 88
including 47 55 8 1048 117 103
and 61 102 41 1452 125 123
142 152 10 704 6 102199 204 5 706 49 65
17THR001 27 63 36 1075 106 104
including 37 63 26 1280 119 115
75 84 9 755 91 139
17THR002 37 43 6 711 69 82
91 136 45 983 98 105
including 102 136 34 1190 117 118
17THR003 4 59 55 937 93 94
including 10 46 36 1212 116 110
17THR004 49 146 97 888 102 102
including 51 113 62 1051 114 113
17THR005 52 72 20 1053 128 126
including 53 63 10 1145 125 130
17THR006 14 74 60 754 86 87
including 17 44 27 1176 125 121
17THR007 5 22 17 837 0 125
including 12 19 7 1049 0 105
128 154 26 1034 114 115
including 128 146 18 1321 144 143
17THR008 37 78 41 1319 122 11217THR009 29 65 36 957 94 92including 34 60 26 1150 111 102
100 105 5 833 129 12717THR010 51 57 6 729 49 5317THR011 30 83 53 1116 12 109
including 31 62 31 1423 155 135
17THR012 50 117 67 748 75 86
including 59 67 8 1084 103 126
and 75 102 27 1120 110 113
172 177 5 725 64 64
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 28
Down hole length and interception depth ndash 2017 holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THR013 19 73 54 888 54 5
including 19 29 10 2576 88 77
17THR014 12 45 33 749 81 74
including 25 33 8 1148 113 94
17THR015 40 48 8 995 89 8117THR016 66 115 49 1096 129 134
including 66 81 15 1184 142 139
and 89 114 25 1183 134 141
17THR017 54 112 58 1383 132 128
including 56 85 29 2042 183 158
17THR018 47 63 16 1124 151 14117THR019 42 59 17 1032 107 114
17THR020 29 49 20 1067 116 115
including 29 36 7 1352 135 126
17THR021 44 64 20 1204 131 12717THR022 101 138 37 1152 107 1217THR023 91 137 46 1271 139 133
including 91 97 6 1953 187 166
and 114 125 11 2707 311 265
17THR027 29 54 25 1176 126 118
including 30 47 17 1382 141 125
Down hole length and interception depth ndash historic holes
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
11PHR02 74 114 40 875 108 116
11PHR03 150 162 12 750 83 96
11PHR03 163 190 27 732 106 119
11PHR03 206 227 21 988 117 13
11PHR04 124 172 48 1049 128 129
11PHR05 197 219 22 1138 107 133
11PHR06 104 135 31 854 83 115
11PHR06 155 171 16 1315 12 122
11PHR07 96 147 51 941 95 99
11PHR08 103 115 12 1417 139 148
11PHR08 126 144 18 1048 126 142
12BER01 115 139 24 768 72 74
12BER02 18 25 7 1062 103 93
12BER02 113 123 10 907 85 86
12BER04 41 90 49 1191 114 127
12BER04 121 126 5 1241 9 112
12BER05 33 39 6 1109 79 92
12BER05 65 76 11 721 63 66
12BER06 131 169 38 844 83 128
12BER07 38 43 5 704 10 101
12BER09 33 92 59 841 9 116
12BER11 31 62 31 738 84 126
12BER11 92 159 67 1061 10 131
12BER11 173 193 20 737 67 83
12BER12 27 81 54 1430 181 189
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 29
Down hole length and interception depth ndash historic holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
12BER13 21 42 21 761 74 91
12BER13 65 75 10 1882 204 216
12BER14 28 55 27 1013 125 129
12BER16 25 100 75 1008 106 107
12BER17 92 99 7 739 6 63
12BER18 117 157 40 1017 112 114
12BER19 34 56 22 1151 104 108
12BER19 68 75 7 780 61 6
12BER20 21 46 25 731 69 75
13BED01 266 2915 255 872 85 78
16DM01 96 147 51 851 91 86
16DM02 127 172 45 1118 138 136
16DM03 104 111 7 838 103 9
16DM04 91 99 8 887 91 84
16DM05 30 103 73 793 82 9
16DM05 199 211 12 830 251 221
16DM06 28 84 56 1280 162 167
16DM06 138 146 8 722 78 112
16DM07 35 60 25 1232 111 111
16DM07 71 104 33 1224 133 134
16DM08 76 100 24 1026 11 12
16DM08 165 177 12 921 122 126
17THD01 34 123 89 982 94 87
17THD02 47 134 87 911 88 92
17THD03 40 635 235 894 116 108
17THD04 20 29 9 1033 86 8
17THD04 72 96 24 703 88 81
17THD05 44 60 16 993 98 85
17THD05 71 76 5 840 64 63
17THD06 39 85 46 1136 114 101
17THD07 15 128 113 879 81 88
17THD07 142 152 10 704 6 102
17THD07 199 204 5 706 49 65
17THR001 27 63 36 1075 106 104
17THR001 75 84 9 755 91 139
17THR002 37 43 6 711 69 82
17THR002 91 136 45 983 98 105
17THR003 4 59 55 937 93 94
17THR004 49 146 97 888 102 102
17THR005 52 72 20 1053 128 126
17THR006 14 74 60 754 86 87
17THR007 5 22 17 837 0 125
17THR007 128 154 26 1034 114 115
17THR008 37 78 41 1319 122 112
17THR009 29 65 36 957 94 92
17THR009 100 105 5 833 129 127
17THR010 51 57 6 729 49 53
17THR011 30 83 53 1116 12 109
17THR012 50 117 67 748 75 86
17THR012 172 177 5 725 64 64
17THR013 19 73 54 888 54 5
17THR014 12 45 33 749 81 74
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 30
Down hole length and interception depth ndash historic holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THR015 40 48 8 995 89 81
17THR016 66 115 49 1096 129 134
17THR017 54 112 58 1383 132 128
17THR018 47 63 16 1124 151 141
17THR019 42 59 17 1032 32 114
17THR020 29 49 20 1067 116 115
17THR021 44 64 20 1204 131 127
17THR022 101 138 37 1152 107 12
17THR023 91 137 46 1271 139 133
17THR027 29 54 25 1176 126 118
67TH01 12344 20001 7657 979 0 0
70BH01 3962 5334 1372 3323 31 0
70BH01 6431 8443 2012 1203 95 0
70BH02 7406 8686 128 704 75 0
70TH02 78 841 61 1666 175 154
70TH02 871 1021 15 1661 8 72
70TH03 777 1295 518 1016 129 132
80BGH05 39 49 10 752 0 0
80BGH06 18 6804 5004 969 0 0
80BGH08 44 7815 3415 939 0 0
80PYH01 75 17 95 725 0 0
80PYH02 341 4825 1415 1121 0 0
80PYH03 23 35 12 711 0 0
80PYH04 3975 55 1525 735 0 0
80PYH05 367 65 283 1160 118 0
80PYH06 54 62 8 905 0 0
80PYH07 67 794 124 1113 125 0
80PYH10 4845 1374 8895 831 86 0
80PYH11 346 465 119 916 8 0
80PYH11 572 9105 3385 1239 106 0
80PYH12 302 365 63 791 102 0
80PYH12 8515 908 565 857 146 0
80PYH14 2518 2734 216 1252 131 0
93MGM02 85 160 75 941 85 0
98TC01 20 47 27 744 91 126
98TC01 48 71 23 917 119 164
98TC03 34 45 11 1480 55 6
98TC03 68 79 11 1095 43 42
98TC04 84 94 10 966 39 4
98TC04 107 133 26 771 77 82
98TC05 24 62 38 754 64 7
98TC06 66 72 6 727 104 111
98TC06 76 101 25 767 101 106
98TC07 35 46 11 1546 165 171
98TC07 61 82 21 728 91 94
98TC09 32 39 7 716 49 174
98TC09 82 107 25 732 6 67
98TC10 101 125 24 732 79 8
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 31
Criteria JORC Code Explanation Commentary
Data aggregation methods
a In reporting Exploration Results weighting averaging techniques maximum andor minimum grade truncations (eg cutting of high grades) and cut-off grades are usually Material and should be stated
a Where aggregate intercepts incorporate short lengths of high grade results and longer lengths of low grade results the procedure used for such aggregation should be stated and some typical examples of such aggregations should be shown in detail
a The assumptions used for any reporting of metal equivalent values should be clearly stated
Drilling a Drill hole intercept grades are typically reported as down-hole
length-weighted averages with any non-recovered sample within the reported intervals treated as no grade The cut-off used for selecting significant intersections is selected to reflect the overall tenor of mineralisation in most cases 500ppm cobalt
a No top cuts have been applied when calculating average grades for reported significant intersections
a No metal equivalent values are reported
Relationship between mineralis- ation widths and intercept lengths
a These relationships are particularly important in the reporting of Exploration Results
a If the geometry of the mineralisation with respect to the drillhole angle is known its nature should be reported
a If it is not known and only the down hole lengths are reported there should be a clear statement to this effect (eg lsquodown hole length true width not knownrsquo)
a Drill holes at the Thackaringa project are typically angled at 50deg or 60deg and drilled perpendicular to the mineralised trend with drilling orientations adjusted along strike to accommodate folded geological sequences
a Mineralisation at the Big Hill and Railway prospects is steeply dipping and consequently mineralised intersections will be greater than true width At Pyrite Hill mineralisation is gently dipping and mineralised intersections will be close to true width
a There is insufficient geological knowledge to accurately estimate true widths and as such all drill intersections are reported as down hole lengths
Diagrams a Appropriate maps and sections (with scales) and tabulations of intercepts should be included for any significant discovery being reported These should include but not be limited to a plan view of drill hole collar locations and appropriate sectional views
a Appropriate maps and sections are presented in the accompa-nying ASX release
Balanced reporting
a Where comprehensive reporting of all exploration results is not practicable representative reporting of both low and high grades andor widths should be practiced to avoid misleading reporting of Exploration Results
a Only mineralised drill hole intersections regarded as highly anomalous and of economic interest are reported The proportion of each hole represented by the reported intervals can be ascertained from the sum of the reported intervals divided by the total drill hole depth
a All assay results for drill holes included in the various Mineral Resource estimates have been considered and comprise results not necessarily regarded as anomalous
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 32
Criteria JORC Code Explanation Commentary
Other substantive exploration data
a Other exploration data if meaningful and material should be reported including (but not limited to) geological obser-vations geophysical survey results geochemical survey results bulk samples ndash size and method of treatment metallurgical test results bulk density groun d- water geotechnical and rock characteristics potential deleterious or contaminating substances
a No further exploration data is deemed material to the results presented in this release
Further work a The nature and scale of planned further work (eg tests for lateral extensions or depth extensions or large-scale step-out drilling)
a Diagrams clearly highlighting the areas of possible extensions including the main geological interpretations and future drilling areas provided this information is not commercially sensitive
a The nature and scale of planned further work will be determined following the completion of revised Mineral Resource estimation for the Thackaringa deposits scheduled for May 2017
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 7
Figure 5 Plan view of Pyrite Hill
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Figure 6 Pyrite Hill X-section along plane of 17THR017 For
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 9
Big HillThe Big Hill deposit is an off-set southwestern extension of the high-grade metamorphic host at Railway The drilling at Big Hill comprised two diamond holes for a total of 219m and three RC holes for a total of 314m The RC program was designed to test the mineralisation at sparsely explored north-eastern end of the prospect at an interpreted offset fault zone between Big Hill and Railway The diamond program comprised holes to provide solid core to assist the structural interpretation of this complex hinge structure
Big Hill results
The 2017 drilling at Big Hill has discovered some structural complications at a fault zone nevertheless some of the highest-yet cobalt mineralisation was intersected in this section Best mineralised intercepts include
a Drillhole 17THR013 ndash 54m 888ppm Co 54 S and 50 Fe from 19m drill depth
Figure 7 Field Crew - RC Drill Rig - Railway Deposit
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 10
Figure 8 Plan view of Big HillFor
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Figure 9 Big Hill X-section along plane of 17THR013For
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 12
Cobalt Blue BackgroundCobalt Blue (ldquoCOBrdquo) is an exploration company focussed on green energy technology and strategic development to upgrade the existing mineral resource at the Thackaringa Cobalt Project in New South Wales This strategic metal is in strong demand for new generation batteries particularly lithium-ion batteries now being widely used in clean energy systems
COB has entered into a farm-in joint venture agreement with Broken Hill Prospecting Limited (ldquoBPLrdquo) in which COB acquired an initial 51 interest in the Thackaringa Cobalt Project COB will undertake exploration and development programs at the Thackaring Cobalt Project and subject to the achievement of milestones will acquire 100 of the Thackaringa Cobalt Project
The Thackaringa Project 23 km west of Broken Hill and 400km by rail from Port Pirie consists of four granted tenements (EL6622 EL8143 ML86 and ML87) with total area of 63 km2 The main target for exploration is well known and contains documented large tonnage cobalt bearing pyrite deposits The project area is under-explored with the vast majority of historical exploration directed at or around the outcropping pyritic cobalt deposits at Pyrite Hill and Big Hill
Potential to extend the Mineral Resource at Pyrite Hill Big Hill Railway and the other prospects is high Numerous other prospects within COBrsquos tenement package are early stage and under-explored
Looking forward we would like our shareholders to keep in touch with COB updates and related news items which we will post on our website the ASX announcements platform as well as social media such as Facebook ( ) and LinkedIn ( ) Please donrsquot hesitate to join the lsquoCOB friendsrsquo on social media and also to join our newsletter mailing list at our website
Joe KaderavekChief Executive Officerjoekaderavekcobaltblueholdingscom(02) 9966 5629
Competent Person StatementThe information in this report that relates to exploration results Mineral Resources and Targets is based on information compiled by Mr Anthony Johnston BSc (Hons) who is a Member of the Australian Institute of Mining and Metallurgy and who is a non-executive director of Cobalt Blue Holdings Limited the Chief Executive Officer of Broken Hill Prospecting Limited and the Technical Manager of the Joint Venture Mr Johnston has sufficient experience which is relevant to the style of mineralisation and type of deposits under consideration and to the activity which he is undertaking to qualify as a Competent Person as defined in the 2004 amp 2012 Edition of the ldquoAustralasian Code for Reporting of Exploration Results Mineral Resources and Ore Reservesrdquo Mr Johnston consents to the inclusion in the announcement of the matters based on his information in the form and context that the information appears
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 13
Appendix ndash JORC Code 2012 Edition ndash Table 1 Section 1 ndash Sampling Techniques and Data(Criteria in this section apply to all succeeding sections)
Criteria JORC Code Explanation Commentary
Sampling techniques
a Nature and quality of sampling (eg cut channels random chips or specific specialised industry standard measurement tools appropriate to the minerals under investigation such as down-hole gamma sondes or handheld XRF instruments etc) These examples should not be taken as limiting the broad meaning of sampling
a Include reference to measures taken to ensure sample repre-sentivity and the appropriate calibration of any measurement tools or systems used
a Aspects of the determination of mineralisation that are Material to the Public Report
a In cases where lsquoindustry standardrsquo work has been done this would be relatively simple (eg lsquoreverse circulation drilling was used to obtain 1 m samples from which 3 kg was pulverised to produce a 30 g charge for fire assayrsquo) In other cases more explanation may be required such as where there is coarse gold that has inherent sampling problems Unusual commodities or mineralisation types (eg submarine nodules) may warrant disclosure of detailed information
Diamond Drilling (DD)Pre-1990a Diamond drilling was used to obtain core from which irregular
intervals reflecting visual mineralisation and geological logging were hand-split or sawn Samples were submitted for analysis using a mixed acid digestion and AAS methodology
Post-1990 a Diamond drilling (one drill hole) was used to obtain core from
which irregular intervals reflecting visual mineralisation and geological logging were sawn (quarter core for HQ) Samples were submitted for analysis using a mixed acid digestion and ICP-OES methodology
2016 Metallurgical Drillinga Eight HQ diameter diamond drill holes (DD) were drilled at
the Thackaringa project in late 2016 They will be used as metallurgical reference holes and to twin some of the previous reverse circulation percussion (RC) holes for QAQC and assay comparison between DD and RC There were two holes drilled at Pyrite Hill two at Big Hill and four at Railway
a Diamond drilling was used to obtain core from which regular (one-metre) intervals were sawn with
a one half core dispatched for analysis using a mixed acid digestion and ICP-AES methodology
a the other half was further sawn such that one quarter- core was sent for metallurgical test work and the other quarter-core retained for archival purposes
Historical Reverse Circulation Drilling a RC drilling was used to obtain a representative sample by means
of riffle splitting with samples submitted for analysis using the above-mentioned methodologies
a Pre-2000 drill samples were assayed for a small and variable suite of elements (sometimes only cobalt) The post-2000 drill samples (5095 samples) are all assayed by ICP-MS for a suite of 33 elements
2017 Diamond Drilling Program a This announcement summarises the results from approximately
23 of the 2017 diamond drilling program Fourteen HQ diameter diamond drill holes (DD) were assayed at the Thackaringa project They will be used as metallurgical reference holes and to twin some of the previous reverse circulation percussion (RC) holes for QAQC and assay comparison between DD and RC There were four holes drilled at Pyrite Hill two at Big Hill and 8 at Railway
a Diamond drilling (17THD01-03) was used to obtain core from which regular (one-metre) intervals were sawn with
a one half core dispatched for analysis using a mixed acid digestion and ICP-AES methodology
a the other half was retained for future metallurgical test work and archival purposes
a Diamond drilling (17THD04-14) was used to obtain core from which regular (one-metre) intervals were sawn with
a one quarter core dispatched for analysis using a mixed acid digestion and ICP-AES methodology
a the other three quarters was retained for future metallurgical test work and archival purposes
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 14
Criteria JORC Code Explanation Commentary
Sampling techniques (continued)
2017 RC drilling Program a This announcement summarises the results from approximately
23 of the 2017 RC drilling program Thirty eight (38) RC drill holes were drilled amp assayed at the Thackaringa project They will be used to infill the drill spacing of historic holes to allow a re-estimation of the existing Mineral Resource There were 12 holes drilled at Pyrite Hill three at Big Hill and 23 at Railway
a RC drilling was used to obtain a representative sample by means of riffle splitting with samples submitted for analysis using the above-mentioned methodologies
a The 2017 drill samples are all assayed by ICP-MS for a suite of 33 elements
Drilling techniques
a Drill type (eg core reverse circulation open-hole hammer rotary air blast auger Bangka sonic etc) and details (eg core diameter triple or standard tube depth of diamond tails face-sampling bit or other type whether core is oriented and if so by what method etc)
a The Thackaringa drilling database comprises a total of forty-eight (48) DD holes and eighty-one (81) RC drill holes Diamond drilling was predominantly completed with standard diameter conventional HQ and NQ utilising RC and percussion pre-collars to an average 25 metres (see Drill-hole Information for further details) Early (1960-1970) drill holes utilised HX ndash AX diameters dependent on drilling depth Reverse circulation drilling utilised standard drill-hole diameters (48rdquo-55rdquo) with a face sampling hammer
a During 2013 a single diamond drill hole (13BED01) was completed at the Railway deposit using a triple tube system with a HQ3 diameter
Year Drilling Metres
1967 1 diamond drill hole 3042
1970 4 diamond drill holes 4966
1980 18 diamond and 1 RC drill hole 171123
1993 2 diamond drill holes 250
1998 11 RC drill holes 109325
2011 11 RC drill holes 1811
2012 20 RC drill holes 287425
2013 1 diamond drill hole 3492
2016 8 diamond drill holes 14848
2017 14 diamond drill holes and 38 RC drill holes 6472
Total 48 diamond and 81 RC drill holes 1684653
a This ASX release describes assay results from seven (7) diamond drill holes and twenty-four (24) RC holes completed and assayed by April 2017 Commencement of that drilling program was reported to ASX by the company in April 2017
a Diamond drilling was completed using a triple tube system with a HQ3 diameter
a Holes were drilled at angles between 40 and 60 degrees from horizontal and the resulting core was oriented as part of the logging process
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 15
Criteria JORC Code Explanation Commentary
Drill sample recovery
a Method of recording and assessing core and chip sample recoveries and results assessed
a Measures taken to maximise sample recovery and ensure representative nature of the samples
a Whether a relationship exists between sample recovery and grade and whether sample bias may have occurred due to preferential lossgain of finecoarse material
Diamond Drilling
a Historical core recoveries were accurately quantified through measurement of actual core recovered versus drilled intervals
a Historical diamond drilling employed conventional drilling techniques while diamond drilling completed by Broken Hill Prospecting utilised a triple-tube system to maximise sample recovery
a Core recovery of 997 was achieved during completion of drill hole 13BED01
a Core recovery of 98 was achieved during the 2016 diamond drilling program
a Core recovery of 933 was achieved during the 2017 diamond drilling program
a No relationship between sample recovery and grade has been observed
Reverse Circulation Drilling
a Reverse circulation sample recoveries were visually estimated during drilling programs Where the estimated sample recovery was below 100 this was recorded in field logs by means of qualitative observation
a Reverse circulation drilling employed adequate air (using a compressor and booster) to maximise sample recovery
a No relationship between sample recovery and grade has been observed
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 16
Criteria JORC Code Explanation Commentary
Logging a Whether core and chip samples have been geologically and geotechnically logged to a level of detail to support appropriate Mineral Resource estimation mining studies and metallurgical studies
a Whether logging is qualitative or quantitative in nature Core (or costean channel etc) photography
a The total length and percentage of the relevant intersections logged
a A qualified geoscientist has logged all reported drill holes in their entirety This logging has been completed to a level of detail considered to accurately support Mineral Resource estimation and metallurgical studies The parameters logged include lithology alteration mineralisation and oxidation These parameters are both qualitative and quantitative in nature
a Diamond drilling completed in 2017 by BPL has been subject to geotechnical logging with parameters recorded including rock-quality designation (RQD) fracture frequency and hardness
a During 2013 a considerable amount of historical drilling was re-logged through review of available core stored at Broken Hill as well the re-interpretation of historical reports where core or percussion samples no longer exist A total of eight (8) diamond drill holes and sixteen (16) diamond drill holes with pre-collars were re-logged as detailed below
Hole ID Deposit Max Depth Hole TypePre-Collar Depth (m)
67TH01 Pyrite Hill 3042 DDH1 ndash
70TH02 Pyrite Hill 1486 DDH1 ndash
70TH03 Pyrite Hill 1414 DDH1 ndash
70BH01 Big Hill 1027 DDH1 ndash
70BH02 Big Hill 1039 DDH1 ndash
80PYH13 Pyrite Hill 77 DDH1 ndash
80PYH14 Pyrite Hill 3003 DDH1 ndash
80BGH09 Big Hill 1005 DDH1 ndash
80PYH01 Pyrite Hill 2453 PDDH2 6
80PYH02 Pyrite Hill 513 PDDH2 3358
80PYH04 Pyrite Hill 55 PDDH2 387
80PYH05 Pyrite Hill 936 PDDH2 18
80PYH06 Pyrite Hill 855 PDDH2 18
80PYH07 Pyrite Hill 945 PDDH2 12
80PYH08 Pyrite Hill 110 PDDH2 8
80PYH09 Pyrite Hill 1005 PDDH2 8
80PYH10 Pyrite Hill 1453 PDDH2 255
80PYH11 Pyrite Hill 1031 PDDH2 18
80PYH12 Pyrite Hill 1095 PDDH2 42
80BGH05 Big Hill 5486 RCDDH3 455
80BGH06 Big Hill 6804 RCDDH3 58
80BGH08 Big Hill 797 RCDDH3 699
93MGM01 Pyrite Hill 70 RDDH4 24
93MGM02 Pyrite Hill 180 RDDH4 48
1 Diamond drill hole2 Diamond drill hole with percussion pre-collar3 Diamond drill hole with reverse circulation pre-collar4 Diamond drill hole with rotary air blast pre-collar
a Litho-geochemistry has been used to verify geological logging where available for drilling completed by Broken Hill Prospecting post 2010
a Representative reference trays of chips from reverse circulation drilling completed post 2010 have been retained by Broken Hill Prospecting
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 17
Criteria JORC Code Explanation Commentary
Sub-sampling techniques and sample preparation
a If core whether cut or sawn and whether quarter half or all core taken
a If non-core whether riffled tube sampled rotary split etc and whether sampled wet or dry
a For all sample types the nature quality and appropriateness of the sample preparation technique
a Quality control procedures adopted for all sub-sampling stages to maximise representivity of samples
a Measures taken to ensure that the sampling is representative of the in situ material collected including for instance results for field duplicatesecond-half sampling
a Whether sample sizes are appropriate to the grain size of the material being sampled
Diamond Drilling (DD)Pre-1990a Core samples were hand-split or sawn with re-logging of available
historical core (see Logging) indicating a 7030 (retainedassayed) split was typical The variation of sample ratios noted are consid-ered consistent with the sub-sampling technique (hand-splitting)
a No second half samples were submitted for analysis a It is considered water used for core cutting is unprocessed and
unlikely to have introduced sample contamination a Procedures relating to the definition of the line of cutting or splitting
are not available It is expected that lsquostandard industry practicersquo for the period was applied to maximize sample representivity
Post-1990 a NQ drilling core was sawn with half core submitted for assay a HQ drilling core was sawn with quarter core submitted for assay a No second half samples were submitted for analysis a It is considered water used for core cutting is unprocessed and
unlikely to have introduced sample contamination a Procedures relating to the definition of the line of cutting or splitting
are not available It is expected that lsquostandard industry practicersquo for the period was applied to maximise sample representivity
2016 Metallurgical Drilling a All HQ drill core was sawn into halves with each half then re-sawn
to provide 4 lengths of quarter core for each interval a One half core was submitted for assay a One quarter core was submitted for metallurgical test work a One quarter core was retained for archive a It is considered that the water used for core cutting is most
unlikely to have introduced sample contamination a Sample sawing and processing for test work were undertaken
according to lsquostandard industry practicersquo to maximise sample representivity
2017 Diamond Drilling a All HQ drill core was sawn into halves with each half then re-sawn to
provide 4 lengths of quarter core for each interval
a One quarter ndash one half core was submitted for assay
a One quarter ndash three quarter core was retained for archive
a It is considered that the water used for core cutting is most unlikely to have introduced sample contamination
a Sample sawing and processing for test work were undertaken according to lsquostandard industry practicersquo to maximise sample representivity
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 18
Criteria JORC Code Explanation Commentary
Sub-sampling techniques and sample preparation (continued)
Historical Reverse Circulation Drilling a Sub-sampling of reverse circulationpercussion chips was
achieved using a cyclone with cone or riffle splitter a During drilling operations the sample cyclone and splitter were
regularly cleaned to prevent down hole sample contamination a Dry sampling was achieved with the use of adequate air using a
compressor and booster where groundwater was encountered a During reverse circulation drilling completed by Broken Hill
Prospecting duplicate samples were collected at the time of drilling These were obtained by spearing the bulk material held in the PVC sacks using a spear made of 40mm diameter PVC pipe three samples were speared through the full depth of the bulk material and these were combined to form one sample
a The Thackaringa drilling database includes a total of 139 field duplicates collected during reverse circulation drilling This reflects a ratio of approximately one field duplicate in every 32 samples (31) for drill holes where duplicates were collected (31 drill holes for 4469 metres) and an overall ratio of one field duplicate in every 42 samples (24) for all reverse circulation drill holes (43 drill holes for 58015 metres)
a Statistical analysis of field duplicates collected during drilling completed by Broken Hill Prospecting (119 duplicates representing 86 of all field duplicates) considered 18 elements of which only chromium lanthanum and titanium show some bias in the duplicate samples For cobalt the confidence limits were evenly placed either side of zero and the duplicates are deemed to be representative of the original samples
2017 Reverse Circulation Drilling a Sub-sampling of reverse circulationpercussion chips was achieved
using a riffle splitter
a During drilling operations the splitter was regularly cleaned to prevent down hole sample contamination
a Dry sampling was achieved with the use of adequate air using a compressor and booster where groundwater was encountered
a During reverse circulation drilling completed by Broken Hill Prospecting duplicate samples were collected at the time of drilling These were obtained by riffle splitting the remnant bulk sample following collection of the primary split
a Field duplicate samples were collected regularly during drilling (for every 18th sample on average)
a Assay results received to date include analysis of 120 field duplicate pairs from 24 RC drill holes
a A measure of the average precision of the sampling sample preparation and assaying methods given by the mean per cent difference (MPD) assay values of the duplicate pairs is summarised below Overall the sampling and assay precision for Co Fe and S at economically significant grades is regarded as reasonable
RC Field Duplicate Pairs
Co Cut-Off Count Co MPD S MPD Fe MPD
All 120 13 16 9
200ppm 52 13 11 10
500ppm 34 12 9 9
1000ppm 20 8 7 7
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 19
Criteria JORC Code Explanation Commentary
Quality of assay data and laboratory tests
a The nature quality and appropriateness of the assaying and laboratory procedures used and whether the technique is considered partial or total
a For geophysical tools spectrometers handheld XRF instruments etc the parameters used in determining the analysis including instrument make and model reading times calibrations factors applied and their derivation etc
a Nature of quality control proce-dures adopted (eg standards blanks duplicates external laboratory checks) and whether acceptable levels of accuracy (ie lack of bias) and precision have been established
a The nature and quality of all assaying and laboratory procedures employed for samples obtained through drilling (diamond and reverse circulation) are considered lsquoindustry standardrsquo for the respective periods
a The assay techniques employed for drilling (diamond and reverse circulation) include mixed acid digestion with ICP-OES and AAS finishes These methods are considered appropriate for the targeted mineralisation and regarded as a lsquonear totalrsquo digestion technique with resistive phases not expected to affect cobalt analyses
a All samples have been processed at independent commercial laboratories including AMDEL Australian Laboratory Services (ALS) Analabs and Genalysis
a All samples from drilling completed by Broken Hill Prospecting during 2011-2012 were assayed at ALS in Orange New South Wales All samples from drilling completed by Broken Hill Prospecting during 2016-2017 were assayed at ALS Adelaide South Australia ALS is a NATA Accredited Laboratory and qualifies for JASANZ ISO90012008 quality systems ALS maintains robust internal QAQC procedures (including analysis of standards repeats and blanks)
a To monitor the accuracy of assay results from the 2017 Thackaringa drilling CRM standards were included in the assay sample stream every 24 samples (on average) for RC chips and every 30 samples for diamond core The CRM samples were purchased from Ore Research amp Exploration Pty Ltd and the results are summarised below
Cobalt Sulphur Iron
OREAS Standard Count plusmn1SD plusmn2SD plusmn3SD plusmn3SD+ plusmn1SD plusmn2SD plusmn3SD plusmn3SD+ plusmn1SD plusmn2SD plusmn3SD plusmn3SD+
160 Low S Blank (28ppm Co) 12 10 ndash ndash 2 7 ndash ndash 5 6 2 2 2
162 Medium Grade (631ppm Co) 53 37 12 3 ndash 32 18 3 ndash 14 12 13 14
163 Low Grade (230ppm Co) 40 30 8 2 ndash 7 25 7 1 2 3 2 33
165 High Grade (2445ppm Co) 13 11 2 ndash ndash 7 5 1 ndash 1 5 2 5
166 High Grade (1970ppm Co) 35 26 8 ndash 1 27 6 ndash 2 9 5 5 16
153 114 30 5 3 80 54 11 8 32 27 24 70
75 20 3 2 52 35 7 5 21 18 16 46
Cobalt CRM Standards
Internal COB assay QAQC protocols cobalt performed well with 95 standard analyses falling within two standard deviations of the certified value and 75 within one SD No systematic out-of-specification trends were identified and there was no discernible tendency for a particular Co standard to preferentially assay either higher or lower than the certified Co concentration
Cobalt Blanks
A number of blanks were also submitted with the RC chip and diamond core samples mdash the OREAS160 CRM is essentially a low-sulphide blank with respect to cobalt (28ppm) and the results of assay of this standard are summarised in Table 1 In addition five quartz sand blanks were submitted bracketing very pyrite-rich intervals in diamond drill holes 17THD06 and 17THD07 Overall the quartz sand blanks returned a maximum of 69ppm Co 004 S and 065 Fe which are regarded as similar to background values and any contamination during sample preparation at the assay laboratory is likely to be immaterial to the final results
Based on the assay of standards and blanks with 95 of the Co results falling within two standard deviations of the certified value it is concluded that the assay results for Co are likely to be representative for the material submitted with no additional source of inaccuracy or bias identified
Sulphur CRM Standards
sulphur was reasonably well-performed with 87 of the total 153 standard analyses falling within two standard deviations of the certified value and 95 within 3SD
Iron CRM Standards
Iron analysis of standards showed poor accuracy with a tendency to assay low mdash 46 of the assays fall outside of 3 SD typically but not exclusively lower than the certified value
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 20
Criteria JORC Code Explanation Commentary
Verification of sampling and assaying
a The verification of significant intersections by either inde-pendent or alternative company personnel
a The use of twinned holes
a Documentation of primary data data entry procedures data verification data storage (physical and electronic) protocols
a Discuss any adjustment to assay data
a Historical drilling intersections were internally verified by personnel employed by previous explorers including CRAE Pty Limited Central Austin Pty Limited and Hunter Resources Broken Hill Prospecting has completed a systematic review of the related data
a The Thackaringa drilling database exists in electronic form as a Microsoft Access database Information related to individual drill holes is stored in digital files as extracted from historical reports (typically including location plan section logs photos surveys assays and petrology)
a Historical drilling data available in electronic form has been re-formatted and imported into the drilling database
a Quantitative historical drilling data including assays have been captured electronically during systematic data compilation and validation completed by Broken Hill Prospecting
a Samples returning assays below detection limits are assigned half detection limit values in the database
a All significant intersections are verified by the Companyrsquos Exploration Manager and independent geological consultant
Location of data points
a Accuracy and quality of surveys used to locate drill holes (collar and down-hole surveys) trenches mine workings and other locations used in Mineral Resource estimation
a Specification of the grid system used
a Quality and adequacy of topographic control
a Historical drill collars have been relocated and surveyed using a differential GPS (DGPS) In the instances where no collar could be located the position has been derived from georeferenced historical plans
a During systematic data validation completed in 2016 three drill holes at Big Hill were found to be incorrectly located One collar was located and surveyed by GPS and two were digitised from georeferenced historical plans (reported to the nearest metre) as the collars had been destroyed These corrections were captured in the Big Hill Mineral Resource estimate
a Down hole surveys using digital cameras were completed on all post 2000 drilling Down hole surveys for some earlier drilling were estimated from hole trace and section data where raw survey data was not reported
a All 2017 Thackaringa drill hole collars were located and surveyed with DGPS by an independent surveyor with reported accuracy of plusmn005m in horizontal and vertical measurement
a Downhole surveys using digital cameras were completed on all 2017 drill-holes
a All data is recorded in the GDA94 datum UTM Zone 54 (MGA54)
a 3D validation of drilling data has been completed by independent geological consultants to support detailed geological modelling in Microminetrade software
a The quality of topographic control is deemed adequate in consideration of the results presented in this release
Data spacing and distribution
a Data spacing for reporting of Exploration Results
a Whether the data spacing and distribution is sufficient to estab-lish the degree of geological and grade continuity appropriate for the Mineral Resource and Ore Reserve estimation procedure(s) and classifications applied
a Whether sample compositing has been applied
a The data density of existing drill holes at Thackaringa has been materially increased by the 2017 drilling program which was undertaken primarily to undertake infill drilling
a Detailed geological mapping supported by drill-hole data of sufficient spacing and distribution to establish a 3D geological model
a The level of geological and grade continuity is appropriate for the Mineral Resource estimation methodologies used and the classifications applied (being wholly Inferred Mineral Resources) Note that a recalculation of the Mineral Resource using 2017 drilling and assay data will commence in mid-2017
a No sample compositing has been applied to reported intersections
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 21
Criteria JORC Code Explanation Commentary
Orientation of data in relation to geological structure
a Whether the orientation of sampling achieves unbiased sampling of possible structures and the extent to which this is known considering the deposit type
a If the relationship between the drilling orientation and the orientation of key mineralised structures is considered to have introduced a sampling bias this should be assessed and reported if material
a The 2017 drill holes at the Thackaringa project were typically angled at -500 or -600 to the horizontal and drilled perpendicular to the mineralised trend with drilling orientations adjusted along strike to accommodate folded geological sequences
a Mineralisation at the Big Hill and Railway prospects is steeply dipping and consequently mineralised intersections will be greater than true width At Pyrite Hill mineralisation is gently dipping and mineralised intersections will be close to true width
a The drilling orientation is not considered to have introduced a sampling bias on assessment of the current geological interpretation
Sample security
a The measures taken to ensure sample security
a Sample security procedures are considered to be lsquoindustry standardrsquo for the respective periods
a Following recent drilling completed by BPL samples were trucked by an independent courier directly from Broken Hill to ALS Adelaide
a BPL consider that risks associated with sample security are limited given the nature of the targeted mineralisation
Audits or reviews
a The results of any audits or reviews of sampling techniques and data
a In late 2016 an independent validation of the Thackaringa drilling database was completed
a The data validation process consisted of systematic review of drilling data (collars assays and surveys) for identification of transcription errors
a Following review historical drill hole locations were also validated against georeferenced historical maps to confirm their location
a Three (3) drill holes at Big Hill were found to be incorrectly located One collar was located and surveyed by GPS and two were digitised from georeferenced historical plans (reported to the nearest metre) as the collars had been destroyed These corrections were captured in the Big Hill Mineral Resource estimate
a Total depths for all holes were checked against original reports
a Final 3D validation of drilling data has been completed by independent geological consultants to support detailed geological modelling in Microminetrade software
a Audits and reviews of QAQC results and procedures are further described in preceding sections of this table including Quality of assay data and laboratory tests Sub-sampling techniques and sample preparation and Logging
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 22
Section 2 Reporting of Exploration Results(Criteria listed in the preceding section also apply to this section)
Criteria JORC Code Explanation Commentary
Mineral tenement and land tenure status
a Type reference namenumber location and ownership including agreements or material issues with third parties such as joint ventures partnerships overriding royalties native title interests historical sites wilderness or national park and environmental settings
a The security of the tenure held at the time of reporting along with any known impediments to obtaining a licence to operate in the area
a The Thackaringa Cobalt project is located approximately 25 kilometres west-southwest of Broken Hill and comprises four tenements with a total area of 63 km2
Tenement
Registered amp Beneficial Holder Minerals Grant Date Expiry Date
Annual Expenditure
Commit-ment
EL6622 Broken Hill Prospecting Limited (BPL)
Group 1 30082006 29082017 $47000
EL 8143 BPL Group 1 26072013 26072017 $14000
ML86 BPL Cobalt iron nickel platinum sulphur
05111975 04112017 $75000
ML87 BPL Cobalt iron nickel platinum sulphur
05111975 04112017 $75000
a The project tenure is subject to a Farm-In agreement between Cobalt Blue Holdings Limited (COB) and Broken Hill Prospecting Limited (BPL) The nature of this agreement is detailed in the COB Replacement Prospectus (as released 4 January 2017)
a The nearest residence (Thackaringa Station) is located approxi-mately three kilometres west of EL6622
a EL6622 is intersected by the Transcontinental Railway the Barrier Highway is located the north of the licence boundaries
a The majority of the project tenure is covered by Western Lands Lease which is considered to extinguish native title interest However Native Title Determination NC9732 (Barkandji Traditional Owners 8) is current over the area and may be relevant to Crown Land parcels (eg public roads) within the project area
a The project tenure is more than 90 kilometres from the nearest National Park and or Wilderness Area (Kinchega National Park) and approximately 20 kilometres south of the nearest Water Supply Reserve (Umberumberka Reservoir Water Supply Reserve)
a The Company is not aware of any impediments to obtaining a licence to operate in the area
Exploration done by other parties
a Acknowledgment and appraisal of exploration by other parties
a A detailed and complete record of all exploration activities undertaken prior to the BPL 2016 drilling program is appended to the JORC Table 1 which forms part of the Cobalt Blue Prospectus Document available on the COB website
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 23
Criteria JORC Code Explanation Commentary
Geology a Deposit type geological setting and style of mineralisation
Regional Geological Setting a The Thackaringa project is located in a deformed and metamor-
phosed Proterozoic supracrustal succession named the Willyama Supergroup which crops out as several inliers in western New South Wales including the Broken Hill Block (Willis et al 1982)
a Exploration by BPL Limited has been focused on the discovery of cobaltiferous pyrite deposits and Broken Hill type base-metal mineralisation both of which are known from historical exploration in the district
a The project area covers portions of the Broken Hill and Thackaringa group successions which host the majority of mineralisation in the region including the Broken Hill base-metal deposit The Sundown Group suite is also present The extensive sequence of quartz-albite-plagioclase rock that hosts the cobaltiferous pyrite mineralisation is interpreted as belonging to the Himalaya Formation which is stratigraphically at the top of the Thackaringa Group
Local Geological Setting a The oldest rocks in the region belong to the Curnamona Craton
which outcrops on the Broken Hill and Euriowie blocks a The overlying Proterozoic rocks have been broadly subdivided
into three major groupings of which the oldest groups are the highly deformed metasediments and igneous derived rocks of the Thackaringa and Broken Hill groups They comprise a major part of the Willyama Supergroup and host the giant Broken Hill massive Pb-Zn-Ag sulphide ore body EL6622 is within the Broken Hill block of the Curnamona Craton
Mineralisation Style a The Thackaringa Mineral deposits (Pyrite Hill Big Hill and Railway)
are characterised by large tonnage cobaltiferous-pyrite minerali-sation hosted within siliceous albitic gneisses and schists of the Himalaya Formation
a Cobalt mineralisation exists within stratabound pyritic horizons where cobalt is present within the pyrite lattice Mineralogical studies have indicated the majority of cobalt (~85) is found in solid solution with primary pyrite (Henley 1998)
a A strong correlation between pyrite content and cobalt grade is observed
a The regional geological setting indicates additional mineralisation targets including
a Stratiform Broken Hill Type (BHT) Copper-Lead-Zinc-Silver deposits
a Copper-rich BHT deposits a Stratiform to stratabound Copper-Cobalt-Gold deposits a Epigenetic Gold and Base metal deposits
Drill hole Information
a A summary of all information mat- erial to the understanding of the exploration results including a tab- ulation of the following information for all Material drill holes
a easting and northing of the drill hole collar
a elevation or RL (Reduced Level ndash elevation above sea level in metres) of the drill hole collar
a dip and azimuth of the hole
a down hole length and interception depth
a See drill holle summaries below
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 24
Drill hole summaries
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
17THD01 Pyrite Hill 1242 MGA54 518382 6449551 28906 -40 222 DDH1
17THD02 Pyrite Hill 1497 MGA54 518475 6449445 29054 -40 258 DDH1
17THD03 Pyrite Hill 785 MGA54 518370 6449190 30328 -40 2851 DDH1
17THD04 Big Hill 1198 MGA54 521078 6449589 27841 -45 1551 DDH1
17THD05 Big Hill 995 MGA54 521669 6449889 2785 -40 131 DDH1
17THD06 Railway 1655 MGA54 521970 6450705 2872 -45 128 DDH1
17THD07 Railway 2746 MGA54 522569 6451282 27067 -45 1565 DDH1
17THD08 Railway 1325 MGA54 522784 6451280 268881 -45 326 DDH1
17THD09 Railway 1205 MGA54 522905 6451511 278471 -40 1525 DDH1
17THD10 Railway 842 MGA54 522992 6451569 279779 -45 130 DDH1
17THD11 Railway 1115 MGA54 523109 6451682 280847 -40 1605 DDH1
17THD12 Railway 1265 MGA54 522796 6451419 272936 -40 14075 DDH1
17THD13 Railway 1055 MGA54 522836 6451456 276747 -40 1385 DDH1
17THD14 Pyrite Hill 99 MGA54 518375 6449089 29425 -60 285 DDH1
17THR001 Railway 156 MGA54 522615 6451277 267561 -60 120 RC5
17THR002 Railway 160 MGA54 522573 6451299 268511 -60 120 RC5
17THR003 Railway 96 MGA54 522124 6450868 27739 -60 130 RC5
17THR004 Railway 150 MGA54 522387 6451319 271453 -60 120 RC5
17THR005 Railway 72 MGA54 522024 6450783 282154 -60 120 RC5
17THR006 Railway 114 MGA54 522049 6450780 28401 -58 125 RC5
17THR007 Railway 180 MGA54 521965 6450699 286585 -59 125 RC5
17THR008 Railway 132 MGA54 521917 6450562 291682 -56 105 RC5
17THR009 Railway 120 MGA54 521906 6450496 292751 -58 105 RC5
17THR010 Railway 72 MGA54 521959 6450398 286445 -56 285 RC5
17THR011 Railway 126 MGA54 522302 6451169 276812 -56 120 RC5
17THR012 Railway 180 MGA54 522440 6451304 274931 -58 173 RC5
17THR013 Big Hill 102 MGA54 521750 6449942 28489 -60 1305 RC5
17THR014 Big Hill 104 MGA54 521628 6449796 277545 -53 130 RC5
17THR015 Big Hill 108 MGA54 521793 6449918 284847 -58 310 RC5
17THR016 Pyrite Hill 138 MGA54 518446 6449209 290391 -57 283 RC5
17THR017 Pyrite Hill 120 MGA54 518449 6449263 293147 -56 2815 RC5
17THR018 Pyrite Hill 78 MGA54 518027 6449806 289567 -60 222 RC5
17THR019 Pyrite Hill 72 MGA54 518105 6449754 287701 -55 222 RC5
17THR020 Pyrite Hill 66 MGA54 518166 6449695 288685 -60 222 RC5
17THR021 Pyrite Hill 78 MGA54 518183 6449717 286007 -60 222 RC5
17THR022 Pyrite Hill 156 MGA54 518510 6449306 28682 -55 281 RC5
17THR023 Pyrite Hill 150 MGA54 518506 6449377 289481 -57 2645 RC5
17THR024 Pyrite Hill 150 MGA54 518457 6449498 288137 -595 2285 RC5
17THR025 Pyrite Hill 114 MGA54 518311 6449609 287463 -60 222 RC5
17THR026 Pyrite Hill 114 MGA54 518268 6449681 284164 -60 222 RC5
17THR027 Pyrite Hill 72 MGA54 518243 6449646 287176 -60 222 RC5
17THR028 Railway 150 MGA54 522457 6451167 300659 -60 350 RC5
17THR029 Railway 162 MGA54 522482 6451084 295964 -60 175 RC5
17THR030 Railway 138 MGA54 522783 6451423 270814 -55 140 RC5
17THR031 Railway 120 MGA54 522945 6451566 27619 -55 145 RC5
17THR032 Railway 132 MGA54 522819 6451473 273712 -53 140 RC5
17THR033 Railway 120 MGA54 522501 6451315 26963 -60 175 RC5
17THR034 Railway 132 MGA54 522321 6451214 275947 -55 127 RC5
17THR035 Railway 156 MGA54 522259 6451120 275749 -552 130 RC5
17THR036 Railway 92 MGA54 522186 6450998 275339 -612 130 RC5
17THR037 Railway 126 MGA54 522148 6450941 274202 -55 126 RC5
17THR038 Railway 168 MGA54 521927 6450619 289555 -55 108 RC5
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 25
Historic down-hole information
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
67TH01 Pyrite Hill 3042 MGA94_54 518564805 644946003 280643 -55 2606 DDH1
70TH02 Pyrite Hill 1486 MGA94_54 51827242 644968054 28408 -61 2186 DDH1
70TH03 Pyrite Hill 1414 MGA94_54 51844985 644921188 28981 -62 2836 DDH1
70BH01 Big Hill 1027 MGA94_54 52085056 64493085 28456 -47 3186 DDH1
70BH02 Big Hill 1039 MGA94_54 52078612 64492644 2801 -50 3186 DDH1
80PYH13 Pyrite Hill 77 MGA94_54 5183582 64490377 29035 -50 2807 DDH1
80PYH14 Pyrite Hill 3003 MGA94_54 51866118 644928762 27796 -60 2807 DDH1
80PYH03 Pyrite Hill 35 MGA94_54 5182515 64495699 2994 -60 2207 PDDH2 2280BGH09 Big Hill 1005 MGA94_54 52065743 644929252 27280 -50 1447 DDH1
80PYH01 Pyrite Hill 2453 MGA94_54 5182462 64495657 3011 -60 2027 PDDH2 680PYH02 Pyrite Hill 513 MGA94_54 5182607 64495742 2976 -60 2207 PDDH2 335880PYH04 Pyrite Hill 55 MGA94_54 51836655 644923174 30834 -60 2957 PDDH2 38780PYH05 Pyrite Hill 936 MGA94_54 51822697 644967819 28518 -49 2227 PDDH2 1880PYH06 Pyrite Hill 855 MGA94_54 51816348 64497573 28373 -544 2227 PDDH2 1880PYH07 Pyrite Hill 945 MGA94_54 51808406 644981836 28516 -55 2227 PDDH2 1280PYH08 Pyrite Hill 110 MGA94_54 51800954 644988543 28614 -60 2227 PDDH2 880PYH09 Pyrite Hill 1005 MGA94_54 5179174 644993176 28655 -485 2227 PDDH2 880PYH10 Pyrite Hill 1453 MGA94_54 51839296 644956596 28553 -50 2227 PDDH2 25580PYH11 Pyrite Hill 1031 MGA94_54 51844096 644932952 29725 -50 2807 PDDH2 1880PYH12 Pyrite Hill 1095 MGA94_54 51840728 644913731 29263 -50 2807 PDDH2 4280BGH05 Big Hill 5486 MGA94_54 52095535 644953441 28893 -60 1637 RCDDH3 45598TC01 Railway 100 MGA94_54 52275006 645133973 26727 -60 1589 RC5
98TC02 Railway 100 MGA94_54 52239241 645138683 26678 -60 1409 RC5
98TC03 Big Hill 84 MGA94_54 52081645 644936939 31305 -60 1359 RC5
98TC04 Big Hill 13825 MGA94_54 52086005 644945085 30409 -60 1409 RC5
98TC05 Big Hill 70 MGA94_54 520728 644932807 28863 -50 1229 RC5
98TC06 Big Hill 108 MGA94_54 520715 6449343 28513 -60 1259 RC5
98TC07 Big Hill 120 MGA94_54 52078597 644938821 29922 -50 1339 RC5
98TC08 Big Hill 90 MGA94_54 52080195 644947781 29101 -60 1509 RC5
98TC09 Big Hill 114 MGA94_54 52082221 644946079 29625 -60 1339 RC5
98TC10 Big Hill 134 MGA94_54 521018 6449576 2815 -50 1729 RC5
98TC11 Railway 35 MGA94_54 5224112 645137396 26701 -60 1329 RC5
80BGH06 Big Hill 6804 MGA94_54 520880 6449472 299 -60 1707 RCDDH3 5880BGH08 Big Hill 797 MGA94_54 52076879 644939093 29629 -60 1267 RCDDH3 69980BGH07 Big Hill 23 MGA94_54 52113656 6449599 27411 -60 1777 RC5
93MGM01 Pyrite Hill 70 MGA94_54 51818544 644971377 28628 -60 2228 RDDH4 2493MGM02 Pyrite Hill 180 MGA94_54 51851545 644945467 28479 -60 2588 RDDH4 4811PHR01 Pyrite Hill 150 MGA94_54 51843547 644907276 28534 -60 27906 RC5
11PHR02 Pyrite Hill 198 MGA94_54 51849992 644915931 28379 -60 27906 RC5
11PHR03 Pyrite Hill 240 MGA94_54 5185603 644918961 28026 -60 27906 RC5
11PHR04 Pyrite Hill 186 MGA94_54 51852863 6449257 28403 -60 27906 RC5
11PHR05 Pyrite Hill 234 MGA94_54 51858425 644939762 28022 -60 25906 RC5
11PHR06 Pyrite Hill 180 MGA94_54 5184909 644952259 28402 -60 23406 RC5
11PHR07 Pyrite Hill 174 MGA94_54 51841347 64495929 28286 -60 21906 RC5
11PHR08 Pyrite Hill 180 MGA94_54 51834274 644965585 28288 -60 21806 RC5
11PSR01 Pyrite Hill 59 MGA94_54 51874273 6448864 26838 -60 25806 RC5
11PSR02 Pyrite Hill 132 MGA94_54 51871938 644896001 27041 -60 25506 RC5
11PSR03 Pyrite Hill 78 MGA94_54 51868699 644905535 27279 -60 25506 RC5
12BER01 Railway 157 MGA94_54 52166731 644989323 27769 -60 141 RC5
12BER02 Railway 132 MGA94_54 52121267 644969067 27353 -60 162 RC5
12BER03 Railway 151 MGA94_54 52187901 645043547 28859 -60 102 RC5
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 26
Historic down-hole information (continued)
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
12BER04 Railway 148 MGA94_54 52235392 645126835 27435 -60 131 RC5
12BER05 Railway 145 MGA94_54 52243947 645116784 29973 -60 124 RC5
12BER06 Railway 169 MGA94_54 52248137 645109135 29595 -60 118 RC5
12BER07 Railway 115 MGA94_54 52232372 645074875 27791 -60 144 RC5
12BER08 Railway 193 MGA94_54 52222079 64508118 27316 -60 129 RC5
12BER09 Railway 13975 MGA94_54 52210125 645088144 27591 -60 129 RC5
12BER10 Railway 151 MGA94_54 52195345 645071618 28449 -60 129 RC5
12BER11 Railway 193 MGA94_54 52273722 645137661 26583 -60 153 RC5
12BER12 Railway 111 MGA94_54 52290973 645151676 27736 -60 153 RC5
12BER13 Railway 205 MGA94_54 52288381 645155754 27103 -60 156 RC5
12BER14 Railway 151 MGA94_54 52312483 645163707 28836 -60 152 RC5
12BER15 Railway 109 MGA94_54 5233113 64518417 28395 -60 154 RC5
12BER16 Railway 115 MGA94_54 52299408 645159199 27595 -60 156 RC5
12BER17 Railway 1155 MGA94_54 5225165 645131494 2691 -60 153 RC5
12BER18 Railway 157 MGA94_54 52233275 645128131 27229 -60 129 RC5
12BER19 Railway 97 MGA94_54 52224055 645106715 27616 -60 135 RC5
12BER20 Railway 120 MGA94_54 52129169 644973363 27695 -60 165 RC5
13BED01 Railway 3492 MGA94_54 52248021 645109243 29601 -60 3007 DDH1
16DM01 Pyrite Hill 1616 MGA94_54 51841138 644959389 28269 -60 2155 DDH1
16DM02 Pyrite Hill 1834 MGA94_54 51852662 644926158 28418 -60 2850 DDH1
16DM03 Big Hill 1265 MGA94_54 5210371 644956749 28301 -60 1585 DDH1
16DM04 Big Hill 1054 MGA94_54 52081474 64494644 29618 -55 1285 DDH1
16DM05 Railway 2465 MGA94_54 5221037 645088187 27662 -60 1285 DDH1
16DM06 Railway 1604 MGA94_54 52291157 645151913 2785 -60 1525 DDH1
16DM07 Railway 2425 MGA94_54 52299526 645159826 27636 -60 1561 DDH1
16DM08 Railway 2585 MGA94_54 52235145 645127307 27385 -60 1309 DDH1
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 27
Down hole length and interception depth ndash 2017 holes
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THD01 34 123 89 982 94 87
including 35 41 6 1143 119 106
and 50 55 5 1311 131 115
and 81 122 41 1366 118 11
17THD02 47 134 87 911 88 92
including 48 77 29 1238 111 114
and 116 134 18 1199 110 111
17THD03 40 635 235 894 116 108
including 49 63 14 1076 143 124
17THD04 20 29 9 1033 86 872 96 24 703 88 81
17THD05 44 60 16 993 98 85
including 44 56 12 1094 109 94
71 76 5 840 64 6317THD06 39 85 46 1136 114 101
including 40 70 30 1227 122 104
and 76 85 9 1148 107 100
17THD07 15 128 113 879 81 88
including 47 55 8 1048 117 103
and 61 102 41 1452 125 123
142 152 10 704 6 102199 204 5 706 49 65
17THR001 27 63 36 1075 106 104
including 37 63 26 1280 119 115
75 84 9 755 91 139
17THR002 37 43 6 711 69 82
91 136 45 983 98 105
including 102 136 34 1190 117 118
17THR003 4 59 55 937 93 94
including 10 46 36 1212 116 110
17THR004 49 146 97 888 102 102
including 51 113 62 1051 114 113
17THR005 52 72 20 1053 128 126
including 53 63 10 1145 125 130
17THR006 14 74 60 754 86 87
including 17 44 27 1176 125 121
17THR007 5 22 17 837 0 125
including 12 19 7 1049 0 105
128 154 26 1034 114 115
including 128 146 18 1321 144 143
17THR008 37 78 41 1319 122 11217THR009 29 65 36 957 94 92including 34 60 26 1150 111 102
100 105 5 833 129 12717THR010 51 57 6 729 49 5317THR011 30 83 53 1116 12 109
including 31 62 31 1423 155 135
17THR012 50 117 67 748 75 86
including 59 67 8 1084 103 126
and 75 102 27 1120 110 113
172 177 5 725 64 64
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 28
Down hole length and interception depth ndash 2017 holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THR013 19 73 54 888 54 5
including 19 29 10 2576 88 77
17THR014 12 45 33 749 81 74
including 25 33 8 1148 113 94
17THR015 40 48 8 995 89 8117THR016 66 115 49 1096 129 134
including 66 81 15 1184 142 139
and 89 114 25 1183 134 141
17THR017 54 112 58 1383 132 128
including 56 85 29 2042 183 158
17THR018 47 63 16 1124 151 14117THR019 42 59 17 1032 107 114
17THR020 29 49 20 1067 116 115
including 29 36 7 1352 135 126
17THR021 44 64 20 1204 131 12717THR022 101 138 37 1152 107 1217THR023 91 137 46 1271 139 133
including 91 97 6 1953 187 166
and 114 125 11 2707 311 265
17THR027 29 54 25 1176 126 118
including 30 47 17 1382 141 125
Down hole length and interception depth ndash historic holes
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
11PHR02 74 114 40 875 108 116
11PHR03 150 162 12 750 83 96
11PHR03 163 190 27 732 106 119
11PHR03 206 227 21 988 117 13
11PHR04 124 172 48 1049 128 129
11PHR05 197 219 22 1138 107 133
11PHR06 104 135 31 854 83 115
11PHR06 155 171 16 1315 12 122
11PHR07 96 147 51 941 95 99
11PHR08 103 115 12 1417 139 148
11PHR08 126 144 18 1048 126 142
12BER01 115 139 24 768 72 74
12BER02 18 25 7 1062 103 93
12BER02 113 123 10 907 85 86
12BER04 41 90 49 1191 114 127
12BER04 121 126 5 1241 9 112
12BER05 33 39 6 1109 79 92
12BER05 65 76 11 721 63 66
12BER06 131 169 38 844 83 128
12BER07 38 43 5 704 10 101
12BER09 33 92 59 841 9 116
12BER11 31 62 31 738 84 126
12BER11 92 159 67 1061 10 131
12BER11 173 193 20 737 67 83
12BER12 27 81 54 1430 181 189
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 29
Down hole length and interception depth ndash historic holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
12BER13 21 42 21 761 74 91
12BER13 65 75 10 1882 204 216
12BER14 28 55 27 1013 125 129
12BER16 25 100 75 1008 106 107
12BER17 92 99 7 739 6 63
12BER18 117 157 40 1017 112 114
12BER19 34 56 22 1151 104 108
12BER19 68 75 7 780 61 6
12BER20 21 46 25 731 69 75
13BED01 266 2915 255 872 85 78
16DM01 96 147 51 851 91 86
16DM02 127 172 45 1118 138 136
16DM03 104 111 7 838 103 9
16DM04 91 99 8 887 91 84
16DM05 30 103 73 793 82 9
16DM05 199 211 12 830 251 221
16DM06 28 84 56 1280 162 167
16DM06 138 146 8 722 78 112
16DM07 35 60 25 1232 111 111
16DM07 71 104 33 1224 133 134
16DM08 76 100 24 1026 11 12
16DM08 165 177 12 921 122 126
17THD01 34 123 89 982 94 87
17THD02 47 134 87 911 88 92
17THD03 40 635 235 894 116 108
17THD04 20 29 9 1033 86 8
17THD04 72 96 24 703 88 81
17THD05 44 60 16 993 98 85
17THD05 71 76 5 840 64 63
17THD06 39 85 46 1136 114 101
17THD07 15 128 113 879 81 88
17THD07 142 152 10 704 6 102
17THD07 199 204 5 706 49 65
17THR001 27 63 36 1075 106 104
17THR001 75 84 9 755 91 139
17THR002 37 43 6 711 69 82
17THR002 91 136 45 983 98 105
17THR003 4 59 55 937 93 94
17THR004 49 146 97 888 102 102
17THR005 52 72 20 1053 128 126
17THR006 14 74 60 754 86 87
17THR007 5 22 17 837 0 125
17THR007 128 154 26 1034 114 115
17THR008 37 78 41 1319 122 112
17THR009 29 65 36 957 94 92
17THR009 100 105 5 833 129 127
17THR010 51 57 6 729 49 53
17THR011 30 83 53 1116 12 109
17THR012 50 117 67 748 75 86
17THR012 172 177 5 725 64 64
17THR013 19 73 54 888 54 5
17THR014 12 45 33 749 81 74
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 30
Down hole length and interception depth ndash historic holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THR015 40 48 8 995 89 81
17THR016 66 115 49 1096 129 134
17THR017 54 112 58 1383 132 128
17THR018 47 63 16 1124 151 141
17THR019 42 59 17 1032 32 114
17THR020 29 49 20 1067 116 115
17THR021 44 64 20 1204 131 127
17THR022 101 138 37 1152 107 12
17THR023 91 137 46 1271 139 133
17THR027 29 54 25 1176 126 118
67TH01 12344 20001 7657 979 0 0
70BH01 3962 5334 1372 3323 31 0
70BH01 6431 8443 2012 1203 95 0
70BH02 7406 8686 128 704 75 0
70TH02 78 841 61 1666 175 154
70TH02 871 1021 15 1661 8 72
70TH03 777 1295 518 1016 129 132
80BGH05 39 49 10 752 0 0
80BGH06 18 6804 5004 969 0 0
80BGH08 44 7815 3415 939 0 0
80PYH01 75 17 95 725 0 0
80PYH02 341 4825 1415 1121 0 0
80PYH03 23 35 12 711 0 0
80PYH04 3975 55 1525 735 0 0
80PYH05 367 65 283 1160 118 0
80PYH06 54 62 8 905 0 0
80PYH07 67 794 124 1113 125 0
80PYH10 4845 1374 8895 831 86 0
80PYH11 346 465 119 916 8 0
80PYH11 572 9105 3385 1239 106 0
80PYH12 302 365 63 791 102 0
80PYH12 8515 908 565 857 146 0
80PYH14 2518 2734 216 1252 131 0
93MGM02 85 160 75 941 85 0
98TC01 20 47 27 744 91 126
98TC01 48 71 23 917 119 164
98TC03 34 45 11 1480 55 6
98TC03 68 79 11 1095 43 42
98TC04 84 94 10 966 39 4
98TC04 107 133 26 771 77 82
98TC05 24 62 38 754 64 7
98TC06 66 72 6 727 104 111
98TC06 76 101 25 767 101 106
98TC07 35 46 11 1546 165 171
98TC07 61 82 21 728 91 94
98TC09 32 39 7 716 49 174
98TC09 82 107 25 732 6 67
98TC10 101 125 24 732 79 8
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 31
Criteria JORC Code Explanation Commentary
Data aggregation methods
a In reporting Exploration Results weighting averaging techniques maximum andor minimum grade truncations (eg cutting of high grades) and cut-off grades are usually Material and should be stated
a Where aggregate intercepts incorporate short lengths of high grade results and longer lengths of low grade results the procedure used for such aggregation should be stated and some typical examples of such aggregations should be shown in detail
a The assumptions used for any reporting of metal equivalent values should be clearly stated
Drilling a Drill hole intercept grades are typically reported as down-hole
length-weighted averages with any non-recovered sample within the reported intervals treated as no grade The cut-off used for selecting significant intersections is selected to reflect the overall tenor of mineralisation in most cases 500ppm cobalt
a No top cuts have been applied when calculating average grades for reported significant intersections
a No metal equivalent values are reported
Relationship between mineralis- ation widths and intercept lengths
a These relationships are particularly important in the reporting of Exploration Results
a If the geometry of the mineralisation with respect to the drillhole angle is known its nature should be reported
a If it is not known and only the down hole lengths are reported there should be a clear statement to this effect (eg lsquodown hole length true width not knownrsquo)
a Drill holes at the Thackaringa project are typically angled at 50deg or 60deg and drilled perpendicular to the mineralised trend with drilling orientations adjusted along strike to accommodate folded geological sequences
a Mineralisation at the Big Hill and Railway prospects is steeply dipping and consequently mineralised intersections will be greater than true width At Pyrite Hill mineralisation is gently dipping and mineralised intersections will be close to true width
a There is insufficient geological knowledge to accurately estimate true widths and as such all drill intersections are reported as down hole lengths
Diagrams a Appropriate maps and sections (with scales) and tabulations of intercepts should be included for any significant discovery being reported These should include but not be limited to a plan view of drill hole collar locations and appropriate sectional views
a Appropriate maps and sections are presented in the accompa-nying ASX release
Balanced reporting
a Where comprehensive reporting of all exploration results is not practicable representative reporting of both low and high grades andor widths should be practiced to avoid misleading reporting of Exploration Results
a Only mineralised drill hole intersections regarded as highly anomalous and of economic interest are reported The proportion of each hole represented by the reported intervals can be ascertained from the sum of the reported intervals divided by the total drill hole depth
a All assay results for drill holes included in the various Mineral Resource estimates have been considered and comprise results not necessarily regarded as anomalous
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 32
Criteria JORC Code Explanation Commentary
Other substantive exploration data
a Other exploration data if meaningful and material should be reported including (but not limited to) geological obser-vations geophysical survey results geochemical survey results bulk samples ndash size and method of treatment metallurgical test results bulk density groun d- water geotechnical and rock characteristics potential deleterious or contaminating substances
a No further exploration data is deemed material to the results presented in this release
Further work a The nature and scale of planned further work (eg tests for lateral extensions or depth extensions or large-scale step-out drilling)
a Diagrams clearly highlighting the areas of possible extensions including the main geological interpretations and future drilling areas provided this information is not commercially sensitive
a The nature and scale of planned further work will be determined following the completion of revised Mineral Resource estimation for the Thackaringa deposits scheduled for May 2017
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 8
Figure 6 Pyrite Hill X-section along plane of 17THR017 For
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 9
Big HillThe Big Hill deposit is an off-set southwestern extension of the high-grade metamorphic host at Railway The drilling at Big Hill comprised two diamond holes for a total of 219m and three RC holes for a total of 314m The RC program was designed to test the mineralisation at sparsely explored north-eastern end of the prospect at an interpreted offset fault zone between Big Hill and Railway The diamond program comprised holes to provide solid core to assist the structural interpretation of this complex hinge structure
Big Hill results
The 2017 drilling at Big Hill has discovered some structural complications at a fault zone nevertheless some of the highest-yet cobalt mineralisation was intersected in this section Best mineralised intercepts include
a Drillhole 17THR013 ndash 54m 888ppm Co 54 S and 50 Fe from 19m drill depth
Figure 7 Field Crew - RC Drill Rig - Railway Deposit
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 10
Figure 8 Plan view of Big HillFor
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 11
Figure 9 Big Hill X-section along plane of 17THR013For
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 12
Cobalt Blue BackgroundCobalt Blue (ldquoCOBrdquo) is an exploration company focussed on green energy technology and strategic development to upgrade the existing mineral resource at the Thackaringa Cobalt Project in New South Wales This strategic metal is in strong demand for new generation batteries particularly lithium-ion batteries now being widely used in clean energy systems
COB has entered into a farm-in joint venture agreement with Broken Hill Prospecting Limited (ldquoBPLrdquo) in which COB acquired an initial 51 interest in the Thackaringa Cobalt Project COB will undertake exploration and development programs at the Thackaring Cobalt Project and subject to the achievement of milestones will acquire 100 of the Thackaringa Cobalt Project
The Thackaringa Project 23 km west of Broken Hill and 400km by rail from Port Pirie consists of four granted tenements (EL6622 EL8143 ML86 and ML87) with total area of 63 km2 The main target for exploration is well known and contains documented large tonnage cobalt bearing pyrite deposits The project area is under-explored with the vast majority of historical exploration directed at or around the outcropping pyritic cobalt deposits at Pyrite Hill and Big Hill
Potential to extend the Mineral Resource at Pyrite Hill Big Hill Railway and the other prospects is high Numerous other prospects within COBrsquos tenement package are early stage and under-explored
Looking forward we would like our shareholders to keep in touch with COB updates and related news items which we will post on our website the ASX announcements platform as well as social media such as Facebook ( ) and LinkedIn ( ) Please donrsquot hesitate to join the lsquoCOB friendsrsquo on social media and also to join our newsletter mailing list at our website
Joe KaderavekChief Executive Officerjoekaderavekcobaltblueholdingscom(02) 9966 5629
Competent Person StatementThe information in this report that relates to exploration results Mineral Resources and Targets is based on information compiled by Mr Anthony Johnston BSc (Hons) who is a Member of the Australian Institute of Mining and Metallurgy and who is a non-executive director of Cobalt Blue Holdings Limited the Chief Executive Officer of Broken Hill Prospecting Limited and the Technical Manager of the Joint Venture Mr Johnston has sufficient experience which is relevant to the style of mineralisation and type of deposits under consideration and to the activity which he is undertaking to qualify as a Competent Person as defined in the 2004 amp 2012 Edition of the ldquoAustralasian Code for Reporting of Exploration Results Mineral Resources and Ore Reservesrdquo Mr Johnston consents to the inclusion in the announcement of the matters based on his information in the form and context that the information appears
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 13
Appendix ndash JORC Code 2012 Edition ndash Table 1 Section 1 ndash Sampling Techniques and Data(Criteria in this section apply to all succeeding sections)
Criteria JORC Code Explanation Commentary
Sampling techniques
a Nature and quality of sampling (eg cut channels random chips or specific specialised industry standard measurement tools appropriate to the minerals under investigation such as down-hole gamma sondes or handheld XRF instruments etc) These examples should not be taken as limiting the broad meaning of sampling
a Include reference to measures taken to ensure sample repre-sentivity and the appropriate calibration of any measurement tools or systems used
a Aspects of the determination of mineralisation that are Material to the Public Report
a In cases where lsquoindustry standardrsquo work has been done this would be relatively simple (eg lsquoreverse circulation drilling was used to obtain 1 m samples from which 3 kg was pulverised to produce a 30 g charge for fire assayrsquo) In other cases more explanation may be required such as where there is coarse gold that has inherent sampling problems Unusual commodities or mineralisation types (eg submarine nodules) may warrant disclosure of detailed information
Diamond Drilling (DD)Pre-1990a Diamond drilling was used to obtain core from which irregular
intervals reflecting visual mineralisation and geological logging were hand-split or sawn Samples were submitted for analysis using a mixed acid digestion and AAS methodology
Post-1990 a Diamond drilling (one drill hole) was used to obtain core from
which irregular intervals reflecting visual mineralisation and geological logging were sawn (quarter core for HQ) Samples were submitted for analysis using a mixed acid digestion and ICP-OES methodology
2016 Metallurgical Drillinga Eight HQ diameter diamond drill holes (DD) were drilled at
the Thackaringa project in late 2016 They will be used as metallurgical reference holes and to twin some of the previous reverse circulation percussion (RC) holes for QAQC and assay comparison between DD and RC There were two holes drilled at Pyrite Hill two at Big Hill and four at Railway
a Diamond drilling was used to obtain core from which regular (one-metre) intervals were sawn with
a one half core dispatched for analysis using a mixed acid digestion and ICP-AES methodology
a the other half was further sawn such that one quarter- core was sent for metallurgical test work and the other quarter-core retained for archival purposes
Historical Reverse Circulation Drilling a RC drilling was used to obtain a representative sample by means
of riffle splitting with samples submitted for analysis using the above-mentioned methodologies
a Pre-2000 drill samples were assayed for a small and variable suite of elements (sometimes only cobalt) The post-2000 drill samples (5095 samples) are all assayed by ICP-MS for a suite of 33 elements
2017 Diamond Drilling Program a This announcement summarises the results from approximately
23 of the 2017 diamond drilling program Fourteen HQ diameter diamond drill holes (DD) were assayed at the Thackaringa project They will be used as metallurgical reference holes and to twin some of the previous reverse circulation percussion (RC) holes for QAQC and assay comparison between DD and RC There were four holes drilled at Pyrite Hill two at Big Hill and 8 at Railway
a Diamond drilling (17THD01-03) was used to obtain core from which regular (one-metre) intervals were sawn with
a one half core dispatched for analysis using a mixed acid digestion and ICP-AES methodology
a the other half was retained for future metallurgical test work and archival purposes
a Diamond drilling (17THD04-14) was used to obtain core from which regular (one-metre) intervals were sawn with
a one quarter core dispatched for analysis using a mixed acid digestion and ICP-AES methodology
a the other three quarters was retained for future metallurgical test work and archival purposes
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 14
Criteria JORC Code Explanation Commentary
Sampling techniques (continued)
2017 RC drilling Program a This announcement summarises the results from approximately
23 of the 2017 RC drilling program Thirty eight (38) RC drill holes were drilled amp assayed at the Thackaringa project They will be used to infill the drill spacing of historic holes to allow a re-estimation of the existing Mineral Resource There were 12 holes drilled at Pyrite Hill three at Big Hill and 23 at Railway
a RC drilling was used to obtain a representative sample by means of riffle splitting with samples submitted for analysis using the above-mentioned methodologies
a The 2017 drill samples are all assayed by ICP-MS for a suite of 33 elements
Drilling techniques
a Drill type (eg core reverse circulation open-hole hammer rotary air blast auger Bangka sonic etc) and details (eg core diameter triple or standard tube depth of diamond tails face-sampling bit or other type whether core is oriented and if so by what method etc)
a The Thackaringa drilling database comprises a total of forty-eight (48) DD holes and eighty-one (81) RC drill holes Diamond drilling was predominantly completed with standard diameter conventional HQ and NQ utilising RC and percussion pre-collars to an average 25 metres (see Drill-hole Information for further details) Early (1960-1970) drill holes utilised HX ndash AX diameters dependent on drilling depth Reverse circulation drilling utilised standard drill-hole diameters (48rdquo-55rdquo) with a face sampling hammer
a During 2013 a single diamond drill hole (13BED01) was completed at the Railway deposit using a triple tube system with a HQ3 diameter
Year Drilling Metres
1967 1 diamond drill hole 3042
1970 4 diamond drill holes 4966
1980 18 diamond and 1 RC drill hole 171123
1993 2 diamond drill holes 250
1998 11 RC drill holes 109325
2011 11 RC drill holes 1811
2012 20 RC drill holes 287425
2013 1 diamond drill hole 3492
2016 8 diamond drill holes 14848
2017 14 diamond drill holes and 38 RC drill holes 6472
Total 48 diamond and 81 RC drill holes 1684653
a This ASX release describes assay results from seven (7) diamond drill holes and twenty-four (24) RC holes completed and assayed by April 2017 Commencement of that drilling program was reported to ASX by the company in April 2017
a Diamond drilling was completed using a triple tube system with a HQ3 diameter
a Holes were drilled at angles between 40 and 60 degrees from horizontal and the resulting core was oriented as part of the logging process
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 15
Criteria JORC Code Explanation Commentary
Drill sample recovery
a Method of recording and assessing core and chip sample recoveries and results assessed
a Measures taken to maximise sample recovery and ensure representative nature of the samples
a Whether a relationship exists between sample recovery and grade and whether sample bias may have occurred due to preferential lossgain of finecoarse material
Diamond Drilling
a Historical core recoveries were accurately quantified through measurement of actual core recovered versus drilled intervals
a Historical diamond drilling employed conventional drilling techniques while diamond drilling completed by Broken Hill Prospecting utilised a triple-tube system to maximise sample recovery
a Core recovery of 997 was achieved during completion of drill hole 13BED01
a Core recovery of 98 was achieved during the 2016 diamond drilling program
a Core recovery of 933 was achieved during the 2017 diamond drilling program
a No relationship between sample recovery and grade has been observed
Reverse Circulation Drilling
a Reverse circulation sample recoveries were visually estimated during drilling programs Where the estimated sample recovery was below 100 this was recorded in field logs by means of qualitative observation
a Reverse circulation drilling employed adequate air (using a compressor and booster) to maximise sample recovery
a No relationship between sample recovery and grade has been observed
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 16
Criteria JORC Code Explanation Commentary
Logging a Whether core and chip samples have been geologically and geotechnically logged to a level of detail to support appropriate Mineral Resource estimation mining studies and metallurgical studies
a Whether logging is qualitative or quantitative in nature Core (or costean channel etc) photography
a The total length and percentage of the relevant intersections logged
a A qualified geoscientist has logged all reported drill holes in their entirety This logging has been completed to a level of detail considered to accurately support Mineral Resource estimation and metallurgical studies The parameters logged include lithology alteration mineralisation and oxidation These parameters are both qualitative and quantitative in nature
a Diamond drilling completed in 2017 by BPL has been subject to geotechnical logging with parameters recorded including rock-quality designation (RQD) fracture frequency and hardness
a During 2013 a considerable amount of historical drilling was re-logged through review of available core stored at Broken Hill as well the re-interpretation of historical reports where core or percussion samples no longer exist A total of eight (8) diamond drill holes and sixteen (16) diamond drill holes with pre-collars were re-logged as detailed below
Hole ID Deposit Max Depth Hole TypePre-Collar Depth (m)
67TH01 Pyrite Hill 3042 DDH1 ndash
70TH02 Pyrite Hill 1486 DDH1 ndash
70TH03 Pyrite Hill 1414 DDH1 ndash
70BH01 Big Hill 1027 DDH1 ndash
70BH02 Big Hill 1039 DDH1 ndash
80PYH13 Pyrite Hill 77 DDH1 ndash
80PYH14 Pyrite Hill 3003 DDH1 ndash
80BGH09 Big Hill 1005 DDH1 ndash
80PYH01 Pyrite Hill 2453 PDDH2 6
80PYH02 Pyrite Hill 513 PDDH2 3358
80PYH04 Pyrite Hill 55 PDDH2 387
80PYH05 Pyrite Hill 936 PDDH2 18
80PYH06 Pyrite Hill 855 PDDH2 18
80PYH07 Pyrite Hill 945 PDDH2 12
80PYH08 Pyrite Hill 110 PDDH2 8
80PYH09 Pyrite Hill 1005 PDDH2 8
80PYH10 Pyrite Hill 1453 PDDH2 255
80PYH11 Pyrite Hill 1031 PDDH2 18
80PYH12 Pyrite Hill 1095 PDDH2 42
80BGH05 Big Hill 5486 RCDDH3 455
80BGH06 Big Hill 6804 RCDDH3 58
80BGH08 Big Hill 797 RCDDH3 699
93MGM01 Pyrite Hill 70 RDDH4 24
93MGM02 Pyrite Hill 180 RDDH4 48
1 Diamond drill hole2 Diamond drill hole with percussion pre-collar3 Diamond drill hole with reverse circulation pre-collar4 Diamond drill hole with rotary air blast pre-collar
a Litho-geochemistry has been used to verify geological logging where available for drilling completed by Broken Hill Prospecting post 2010
a Representative reference trays of chips from reverse circulation drilling completed post 2010 have been retained by Broken Hill Prospecting
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 17
Criteria JORC Code Explanation Commentary
Sub-sampling techniques and sample preparation
a If core whether cut or sawn and whether quarter half or all core taken
a If non-core whether riffled tube sampled rotary split etc and whether sampled wet or dry
a For all sample types the nature quality and appropriateness of the sample preparation technique
a Quality control procedures adopted for all sub-sampling stages to maximise representivity of samples
a Measures taken to ensure that the sampling is representative of the in situ material collected including for instance results for field duplicatesecond-half sampling
a Whether sample sizes are appropriate to the grain size of the material being sampled
Diamond Drilling (DD)Pre-1990a Core samples were hand-split or sawn with re-logging of available
historical core (see Logging) indicating a 7030 (retainedassayed) split was typical The variation of sample ratios noted are consid-ered consistent with the sub-sampling technique (hand-splitting)
a No second half samples were submitted for analysis a It is considered water used for core cutting is unprocessed and
unlikely to have introduced sample contamination a Procedures relating to the definition of the line of cutting or splitting
are not available It is expected that lsquostandard industry practicersquo for the period was applied to maximize sample representivity
Post-1990 a NQ drilling core was sawn with half core submitted for assay a HQ drilling core was sawn with quarter core submitted for assay a No second half samples were submitted for analysis a It is considered water used for core cutting is unprocessed and
unlikely to have introduced sample contamination a Procedures relating to the definition of the line of cutting or splitting
are not available It is expected that lsquostandard industry practicersquo for the period was applied to maximise sample representivity
2016 Metallurgical Drilling a All HQ drill core was sawn into halves with each half then re-sawn
to provide 4 lengths of quarter core for each interval a One half core was submitted for assay a One quarter core was submitted for metallurgical test work a One quarter core was retained for archive a It is considered that the water used for core cutting is most
unlikely to have introduced sample contamination a Sample sawing and processing for test work were undertaken
according to lsquostandard industry practicersquo to maximise sample representivity
2017 Diamond Drilling a All HQ drill core was sawn into halves with each half then re-sawn to
provide 4 lengths of quarter core for each interval
a One quarter ndash one half core was submitted for assay
a One quarter ndash three quarter core was retained for archive
a It is considered that the water used for core cutting is most unlikely to have introduced sample contamination
a Sample sawing and processing for test work were undertaken according to lsquostandard industry practicersquo to maximise sample representivity
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 18
Criteria JORC Code Explanation Commentary
Sub-sampling techniques and sample preparation (continued)
Historical Reverse Circulation Drilling a Sub-sampling of reverse circulationpercussion chips was
achieved using a cyclone with cone or riffle splitter a During drilling operations the sample cyclone and splitter were
regularly cleaned to prevent down hole sample contamination a Dry sampling was achieved with the use of adequate air using a
compressor and booster where groundwater was encountered a During reverse circulation drilling completed by Broken Hill
Prospecting duplicate samples were collected at the time of drilling These were obtained by spearing the bulk material held in the PVC sacks using a spear made of 40mm diameter PVC pipe three samples were speared through the full depth of the bulk material and these were combined to form one sample
a The Thackaringa drilling database includes a total of 139 field duplicates collected during reverse circulation drilling This reflects a ratio of approximately one field duplicate in every 32 samples (31) for drill holes where duplicates were collected (31 drill holes for 4469 metres) and an overall ratio of one field duplicate in every 42 samples (24) for all reverse circulation drill holes (43 drill holes for 58015 metres)
a Statistical analysis of field duplicates collected during drilling completed by Broken Hill Prospecting (119 duplicates representing 86 of all field duplicates) considered 18 elements of which only chromium lanthanum and titanium show some bias in the duplicate samples For cobalt the confidence limits were evenly placed either side of zero and the duplicates are deemed to be representative of the original samples
2017 Reverse Circulation Drilling a Sub-sampling of reverse circulationpercussion chips was achieved
using a riffle splitter
a During drilling operations the splitter was regularly cleaned to prevent down hole sample contamination
a Dry sampling was achieved with the use of adequate air using a compressor and booster where groundwater was encountered
a During reverse circulation drilling completed by Broken Hill Prospecting duplicate samples were collected at the time of drilling These were obtained by riffle splitting the remnant bulk sample following collection of the primary split
a Field duplicate samples were collected regularly during drilling (for every 18th sample on average)
a Assay results received to date include analysis of 120 field duplicate pairs from 24 RC drill holes
a A measure of the average precision of the sampling sample preparation and assaying methods given by the mean per cent difference (MPD) assay values of the duplicate pairs is summarised below Overall the sampling and assay precision for Co Fe and S at economically significant grades is regarded as reasonable
RC Field Duplicate Pairs
Co Cut-Off Count Co MPD S MPD Fe MPD
All 120 13 16 9
200ppm 52 13 11 10
500ppm 34 12 9 9
1000ppm 20 8 7 7
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 19
Criteria JORC Code Explanation Commentary
Quality of assay data and laboratory tests
a The nature quality and appropriateness of the assaying and laboratory procedures used and whether the technique is considered partial or total
a For geophysical tools spectrometers handheld XRF instruments etc the parameters used in determining the analysis including instrument make and model reading times calibrations factors applied and their derivation etc
a Nature of quality control proce-dures adopted (eg standards blanks duplicates external laboratory checks) and whether acceptable levels of accuracy (ie lack of bias) and precision have been established
a The nature and quality of all assaying and laboratory procedures employed for samples obtained through drilling (diamond and reverse circulation) are considered lsquoindustry standardrsquo for the respective periods
a The assay techniques employed for drilling (diamond and reverse circulation) include mixed acid digestion with ICP-OES and AAS finishes These methods are considered appropriate for the targeted mineralisation and regarded as a lsquonear totalrsquo digestion technique with resistive phases not expected to affect cobalt analyses
a All samples have been processed at independent commercial laboratories including AMDEL Australian Laboratory Services (ALS) Analabs and Genalysis
a All samples from drilling completed by Broken Hill Prospecting during 2011-2012 were assayed at ALS in Orange New South Wales All samples from drilling completed by Broken Hill Prospecting during 2016-2017 were assayed at ALS Adelaide South Australia ALS is a NATA Accredited Laboratory and qualifies for JASANZ ISO90012008 quality systems ALS maintains robust internal QAQC procedures (including analysis of standards repeats and blanks)
a To monitor the accuracy of assay results from the 2017 Thackaringa drilling CRM standards were included in the assay sample stream every 24 samples (on average) for RC chips and every 30 samples for diamond core The CRM samples were purchased from Ore Research amp Exploration Pty Ltd and the results are summarised below
Cobalt Sulphur Iron
OREAS Standard Count plusmn1SD plusmn2SD plusmn3SD plusmn3SD+ plusmn1SD plusmn2SD plusmn3SD plusmn3SD+ plusmn1SD plusmn2SD plusmn3SD plusmn3SD+
160 Low S Blank (28ppm Co) 12 10 ndash ndash 2 7 ndash ndash 5 6 2 2 2
162 Medium Grade (631ppm Co) 53 37 12 3 ndash 32 18 3 ndash 14 12 13 14
163 Low Grade (230ppm Co) 40 30 8 2 ndash 7 25 7 1 2 3 2 33
165 High Grade (2445ppm Co) 13 11 2 ndash ndash 7 5 1 ndash 1 5 2 5
166 High Grade (1970ppm Co) 35 26 8 ndash 1 27 6 ndash 2 9 5 5 16
153 114 30 5 3 80 54 11 8 32 27 24 70
75 20 3 2 52 35 7 5 21 18 16 46
Cobalt CRM Standards
Internal COB assay QAQC protocols cobalt performed well with 95 standard analyses falling within two standard deviations of the certified value and 75 within one SD No systematic out-of-specification trends were identified and there was no discernible tendency for a particular Co standard to preferentially assay either higher or lower than the certified Co concentration
Cobalt Blanks
A number of blanks were also submitted with the RC chip and diamond core samples mdash the OREAS160 CRM is essentially a low-sulphide blank with respect to cobalt (28ppm) and the results of assay of this standard are summarised in Table 1 In addition five quartz sand blanks were submitted bracketing very pyrite-rich intervals in diamond drill holes 17THD06 and 17THD07 Overall the quartz sand blanks returned a maximum of 69ppm Co 004 S and 065 Fe which are regarded as similar to background values and any contamination during sample preparation at the assay laboratory is likely to be immaterial to the final results
Based on the assay of standards and blanks with 95 of the Co results falling within two standard deviations of the certified value it is concluded that the assay results for Co are likely to be representative for the material submitted with no additional source of inaccuracy or bias identified
Sulphur CRM Standards
sulphur was reasonably well-performed with 87 of the total 153 standard analyses falling within two standard deviations of the certified value and 95 within 3SD
Iron CRM Standards
Iron analysis of standards showed poor accuracy with a tendency to assay low mdash 46 of the assays fall outside of 3 SD typically but not exclusively lower than the certified value
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 20
Criteria JORC Code Explanation Commentary
Verification of sampling and assaying
a The verification of significant intersections by either inde-pendent or alternative company personnel
a The use of twinned holes
a Documentation of primary data data entry procedures data verification data storage (physical and electronic) protocols
a Discuss any adjustment to assay data
a Historical drilling intersections were internally verified by personnel employed by previous explorers including CRAE Pty Limited Central Austin Pty Limited and Hunter Resources Broken Hill Prospecting has completed a systematic review of the related data
a The Thackaringa drilling database exists in electronic form as a Microsoft Access database Information related to individual drill holes is stored in digital files as extracted from historical reports (typically including location plan section logs photos surveys assays and petrology)
a Historical drilling data available in electronic form has been re-formatted and imported into the drilling database
a Quantitative historical drilling data including assays have been captured electronically during systematic data compilation and validation completed by Broken Hill Prospecting
a Samples returning assays below detection limits are assigned half detection limit values in the database
a All significant intersections are verified by the Companyrsquos Exploration Manager and independent geological consultant
Location of data points
a Accuracy and quality of surveys used to locate drill holes (collar and down-hole surveys) trenches mine workings and other locations used in Mineral Resource estimation
a Specification of the grid system used
a Quality and adequacy of topographic control
a Historical drill collars have been relocated and surveyed using a differential GPS (DGPS) In the instances where no collar could be located the position has been derived from georeferenced historical plans
a During systematic data validation completed in 2016 three drill holes at Big Hill were found to be incorrectly located One collar was located and surveyed by GPS and two were digitised from georeferenced historical plans (reported to the nearest metre) as the collars had been destroyed These corrections were captured in the Big Hill Mineral Resource estimate
a Down hole surveys using digital cameras were completed on all post 2000 drilling Down hole surveys for some earlier drilling were estimated from hole trace and section data where raw survey data was not reported
a All 2017 Thackaringa drill hole collars were located and surveyed with DGPS by an independent surveyor with reported accuracy of plusmn005m in horizontal and vertical measurement
a Downhole surveys using digital cameras were completed on all 2017 drill-holes
a All data is recorded in the GDA94 datum UTM Zone 54 (MGA54)
a 3D validation of drilling data has been completed by independent geological consultants to support detailed geological modelling in Microminetrade software
a The quality of topographic control is deemed adequate in consideration of the results presented in this release
Data spacing and distribution
a Data spacing for reporting of Exploration Results
a Whether the data spacing and distribution is sufficient to estab-lish the degree of geological and grade continuity appropriate for the Mineral Resource and Ore Reserve estimation procedure(s) and classifications applied
a Whether sample compositing has been applied
a The data density of existing drill holes at Thackaringa has been materially increased by the 2017 drilling program which was undertaken primarily to undertake infill drilling
a Detailed geological mapping supported by drill-hole data of sufficient spacing and distribution to establish a 3D geological model
a The level of geological and grade continuity is appropriate for the Mineral Resource estimation methodologies used and the classifications applied (being wholly Inferred Mineral Resources) Note that a recalculation of the Mineral Resource using 2017 drilling and assay data will commence in mid-2017
a No sample compositing has been applied to reported intersections
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 21
Criteria JORC Code Explanation Commentary
Orientation of data in relation to geological structure
a Whether the orientation of sampling achieves unbiased sampling of possible structures and the extent to which this is known considering the deposit type
a If the relationship between the drilling orientation and the orientation of key mineralised structures is considered to have introduced a sampling bias this should be assessed and reported if material
a The 2017 drill holes at the Thackaringa project were typically angled at -500 or -600 to the horizontal and drilled perpendicular to the mineralised trend with drilling orientations adjusted along strike to accommodate folded geological sequences
a Mineralisation at the Big Hill and Railway prospects is steeply dipping and consequently mineralised intersections will be greater than true width At Pyrite Hill mineralisation is gently dipping and mineralised intersections will be close to true width
a The drilling orientation is not considered to have introduced a sampling bias on assessment of the current geological interpretation
Sample security
a The measures taken to ensure sample security
a Sample security procedures are considered to be lsquoindustry standardrsquo for the respective periods
a Following recent drilling completed by BPL samples were trucked by an independent courier directly from Broken Hill to ALS Adelaide
a BPL consider that risks associated with sample security are limited given the nature of the targeted mineralisation
Audits or reviews
a The results of any audits or reviews of sampling techniques and data
a In late 2016 an independent validation of the Thackaringa drilling database was completed
a The data validation process consisted of systematic review of drilling data (collars assays and surveys) for identification of transcription errors
a Following review historical drill hole locations were also validated against georeferenced historical maps to confirm their location
a Three (3) drill holes at Big Hill were found to be incorrectly located One collar was located and surveyed by GPS and two were digitised from georeferenced historical plans (reported to the nearest metre) as the collars had been destroyed These corrections were captured in the Big Hill Mineral Resource estimate
a Total depths for all holes were checked against original reports
a Final 3D validation of drilling data has been completed by independent geological consultants to support detailed geological modelling in Microminetrade software
a Audits and reviews of QAQC results and procedures are further described in preceding sections of this table including Quality of assay data and laboratory tests Sub-sampling techniques and sample preparation and Logging
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 22
Section 2 Reporting of Exploration Results(Criteria listed in the preceding section also apply to this section)
Criteria JORC Code Explanation Commentary
Mineral tenement and land tenure status
a Type reference namenumber location and ownership including agreements or material issues with third parties such as joint ventures partnerships overriding royalties native title interests historical sites wilderness or national park and environmental settings
a The security of the tenure held at the time of reporting along with any known impediments to obtaining a licence to operate in the area
a The Thackaringa Cobalt project is located approximately 25 kilometres west-southwest of Broken Hill and comprises four tenements with a total area of 63 km2
Tenement
Registered amp Beneficial Holder Minerals Grant Date Expiry Date
Annual Expenditure
Commit-ment
EL6622 Broken Hill Prospecting Limited (BPL)
Group 1 30082006 29082017 $47000
EL 8143 BPL Group 1 26072013 26072017 $14000
ML86 BPL Cobalt iron nickel platinum sulphur
05111975 04112017 $75000
ML87 BPL Cobalt iron nickel platinum sulphur
05111975 04112017 $75000
a The project tenure is subject to a Farm-In agreement between Cobalt Blue Holdings Limited (COB) and Broken Hill Prospecting Limited (BPL) The nature of this agreement is detailed in the COB Replacement Prospectus (as released 4 January 2017)
a The nearest residence (Thackaringa Station) is located approxi-mately three kilometres west of EL6622
a EL6622 is intersected by the Transcontinental Railway the Barrier Highway is located the north of the licence boundaries
a The majority of the project tenure is covered by Western Lands Lease which is considered to extinguish native title interest However Native Title Determination NC9732 (Barkandji Traditional Owners 8) is current over the area and may be relevant to Crown Land parcels (eg public roads) within the project area
a The project tenure is more than 90 kilometres from the nearest National Park and or Wilderness Area (Kinchega National Park) and approximately 20 kilometres south of the nearest Water Supply Reserve (Umberumberka Reservoir Water Supply Reserve)
a The Company is not aware of any impediments to obtaining a licence to operate in the area
Exploration done by other parties
a Acknowledgment and appraisal of exploration by other parties
a A detailed and complete record of all exploration activities undertaken prior to the BPL 2016 drilling program is appended to the JORC Table 1 which forms part of the Cobalt Blue Prospectus Document available on the COB website
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 23
Criteria JORC Code Explanation Commentary
Geology a Deposit type geological setting and style of mineralisation
Regional Geological Setting a The Thackaringa project is located in a deformed and metamor-
phosed Proterozoic supracrustal succession named the Willyama Supergroup which crops out as several inliers in western New South Wales including the Broken Hill Block (Willis et al 1982)
a Exploration by BPL Limited has been focused on the discovery of cobaltiferous pyrite deposits and Broken Hill type base-metal mineralisation both of which are known from historical exploration in the district
a The project area covers portions of the Broken Hill and Thackaringa group successions which host the majority of mineralisation in the region including the Broken Hill base-metal deposit The Sundown Group suite is also present The extensive sequence of quartz-albite-plagioclase rock that hosts the cobaltiferous pyrite mineralisation is interpreted as belonging to the Himalaya Formation which is stratigraphically at the top of the Thackaringa Group
Local Geological Setting a The oldest rocks in the region belong to the Curnamona Craton
which outcrops on the Broken Hill and Euriowie blocks a The overlying Proterozoic rocks have been broadly subdivided
into three major groupings of which the oldest groups are the highly deformed metasediments and igneous derived rocks of the Thackaringa and Broken Hill groups They comprise a major part of the Willyama Supergroup and host the giant Broken Hill massive Pb-Zn-Ag sulphide ore body EL6622 is within the Broken Hill block of the Curnamona Craton
Mineralisation Style a The Thackaringa Mineral deposits (Pyrite Hill Big Hill and Railway)
are characterised by large tonnage cobaltiferous-pyrite minerali-sation hosted within siliceous albitic gneisses and schists of the Himalaya Formation
a Cobalt mineralisation exists within stratabound pyritic horizons where cobalt is present within the pyrite lattice Mineralogical studies have indicated the majority of cobalt (~85) is found in solid solution with primary pyrite (Henley 1998)
a A strong correlation between pyrite content and cobalt grade is observed
a The regional geological setting indicates additional mineralisation targets including
a Stratiform Broken Hill Type (BHT) Copper-Lead-Zinc-Silver deposits
a Copper-rich BHT deposits a Stratiform to stratabound Copper-Cobalt-Gold deposits a Epigenetic Gold and Base metal deposits
Drill hole Information
a A summary of all information mat- erial to the understanding of the exploration results including a tab- ulation of the following information for all Material drill holes
a easting and northing of the drill hole collar
a elevation or RL (Reduced Level ndash elevation above sea level in metres) of the drill hole collar
a dip and azimuth of the hole
a down hole length and interception depth
a See drill holle summaries below
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 24
Drill hole summaries
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
17THD01 Pyrite Hill 1242 MGA54 518382 6449551 28906 -40 222 DDH1
17THD02 Pyrite Hill 1497 MGA54 518475 6449445 29054 -40 258 DDH1
17THD03 Pyrite Hill 785 MGA54 518370 6449190 30328 -40 2851 DDH1
17THD04 Big Hill 1198 MGA54 521078 6449589 27841 -45 1551 DDH1
17THD05 Big Hill 995 MGA54 521669 6449889 2785 -40 131 DDH1
17THD06 Railway 1655 MGA54 521970 6450705 2872 -45 128 DDH1
17THD07 Railway 2746 MGA54 522569 6451282 27067 -45 1565 DDH1
17THD08 Railway 1325 MGA54 522784 6451280 268881 -45 326 DDH1
17THD09 Railway 1205 MGA54 522905 6451511 278471 -40 1525 DDH1
17THD10 Railway 842 MGA54 522992 6451569 279779 -45 130 DDH1
17THD11 Railway 1115 MGA54 523109 6451682 280847 -40 1605 DDH1
17THD12 Railway 1265 MGA54 522796 6451419 272936 -40 14075 DDH1
17THD13 Railway 1055 MGA54 522836 6451456 276747 -40 1385 DDH1
17THD14 Pyrite Hill 99 MGA54 518375 6449089 29425 -60 285 DDH1
17THR001 Railway 156 MGA54 522615 6451277 267561 -60 120 RC5
17THR002 Railway 160 MGA54 522573 6451299 268511 -60 120 RC5
17THR003 Railway 96 MGA54 522124 6450868 27739 -60 130 RC5
17THR004 Railway 150 MGA54 522387 6451319 271453 -60 120 RC5
17THR005 Railway 72 MGA54 522024 6450783 282154 -60 120 RC5
17THR006 Railway 114 MGA54 522049 6450780 28401 -58 125 RC5
17THR007 Railway 180 MGA54 521965 6450699 286585 -59 125 RC5
17THR008 Railway 132 MGA54 521917 6450562 291682 -56 105 RC5
17THR009 Railway 120 MGA54 521906 6450496 292751 -58 105 RC5
17THR010 Railway 72 MGA54 521959 6450398 286445 -56 285 RC5
17THR011 Railway 126 MGA54 522302 6451169 276812 -56 120 RC5
17THR012 Railway 180 MGA54 522440 6451304 274931 -58 173 RC5
17THR013 Big Hill 102 MGA54 521750 6449942 28489 -60 1305 RC5
17THR014 Big Hill 104 MGA54 521628 6449796 277545 -53 130 RC5
17THR015 Big Hill 108 MGA54 521793 6449918 284847 -58 310 RC5
17THR016 Pyrite Hill 138 MGA54 518446 6449209 290391 -57 283 RC5
17THR017 Pyrite Hill 120 MGA54 518449 6449263 293147 -56 2815 RC5
17THR018 Pyrite Hill 78 MGA54 518027 6449806 289567 -60 222 RC5
17THR019 Pyrite Hill 72 MGA54 518105 6449754 287701 -55 222 RC5
17THR020 Pyrite Hill 66 MGA54 518166 6449695 288685 -60 222 RC5
17THR021 Pyrite Hill 78 MGA54 518183 6449717 286007 -60 222 RC5
17THR022 Pyrite Hill 156 MGA54 518510 6449306 28682 -55 281 RC5
17THR023 Pyrite Hill 150 MGA54 518506 6449377 289481 -57 2645 RC5
17THR024 Pyrite Hill 150 MGA54 518457 6449498 288137 -595 2285 RC5
17THR025 Pyrite Hill 114 MGA54 518311 6449609 287463 -60 222 RC5
17THR026 Pyrite Hill 114 MGA54 518268 6449681 284164 -60 222 RC5
17THR027 Pyrite Hill 72 MGA54 518243 6449646 287176 -60 222 RC5
17THR028 Railway 150 MGA54 522457 6451167 300659 -60 350 RC5
17THR029 Railway 162 MGA54 522482 6451084 295964 -60 175 RC5
17THR030 Railway 138 MGA54 522783 6451423 270814 -55 140 RC5
17THR031 Railway 120 MGA54 522945 6451566 27619 -55 145 RC5
17THR032 Railway 132 MGA54 522819 6451473 273712 -53 140 RC5
17THR033 Railway 120 MGA54 522501 6451315 26963 -60 175 RC5
17THR034 Railway 132 MGA54 522321 6451214 275947 -55 127 RC5
17THR035 Railway 156 MGA54 522259 6451120 275749 -552 130 RC5
17THR036 Railway 92 MGA54 522186 6450998 275339 -612 130 RC5
17THR037 Railway 126 MGA54 522148 6450941 274202 -55 126 RC5
17THR038 Railway 168 MGA54 521927 6450619 289555 -55 108 RC5
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 25
Historic down-hole information
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
67TH01 Pyrite Hill 3042 MGA94_54 518564805 644946003 280643 -55 2606 DDH1
70TH02 Pyrite Hill 1486 MGA94_54 51827242 644968054 28408 -61 2186 DDH1
70TH03 Pyrite Hill 1414 MGA94_54 51844985 644921188 28981 -62 2836 DDH1
70BH01 Big Hill 1027 MGA94_54 52085056 64493085 28456 -47 3186 DDH1
70BH02 Big Hill 1039 MGA94_54 52078612 64492644 2801 -50 3186 DDH1
80PYH13 Pyrite Hill 77 MGA94_54 5183582 64490377 29035 -50 2807 DDH1
80PYH14 Pyrite Hill 3003 MGA94_54 51866118 644928762 27796 -60 2807 DDH1
80PYH03 Pyrite Hill 35 MGA94_54 5182515 64495699 2994 -60 2207 PDDH2 2280BGH09 Big Hill 1005 MGA94_54 52065743 644929252 27280 -50 1447 DDH1
80PYH01 Pyrite Hill 2453 MGA94_54 5182462 64495657 3011 -60 2027 PDDH2 680PYH02 Pyrite Hill 513 MGA94_54 5182607 64495742 2976 -60 2207 PDDH2 335880PYH04 Pyrite Hill 55 MGA94_54 51836655 644923174 30834 -60 2957 PDDH2 38780PYH05 Pyrite Hill 936 MGA94_54 51822697 644967819 28518 -49 2227 PDDH2 1880PYH06 Pyrite Hill 855 MGA94_54 51816348 64497573 28373 -544 2227 PDDH2 1880PYH07 Pyrite Hill 945 MGA94_54 51808406 644981836 28516 -55 2227 PDDH2 1280PYH08 Pyrite Hill 110 MGA94_54 51800954 644988543 28614 -60 2227 PDDH2 880PYH09 Pyrite Hill 1005 MGA94_54 5179174 644993176 28655 -485 2227 PDDH2 880PYH10 Pyrite Hill 1453 MGA94_54 51839296 644956596 28553 -50 2227 PDDH2 25580PYH11 Pyrite Hill 1031 MGA94_54 51844096 644932952 29725 -50 2807 PDDH2 1880PYH12 Pyrite Hill 1095 MGA94_54 51840728 644913731 29263 -50 2807 PDDH2 4280BGH05 Big Hill 5486 MGA94_54 52095535 644953441 28893 -60 1637 RCDDH3 45598TC01 Railway 100 MGA94_54 52275006 645133973 26727 -60 1589 RC5
98TC02 Railway 100 MGA94_54 52239241 645138683 26678 -60 1409 RC5
98TC03 Big Hill 84 MGA94_54 52081645 644936939 31305 -60 1359 RC5
98TC04 Big Hill 13825 MGA94_54 52086005 644945085 30409 -60 1409 RC5
98TC05 Big Hill 70 MGA94_54 520728 644932807 28863 -50 1229 RC5
98TC06 Big Hill 108 MGA94_54 520715 6449343 28513 -60 1259 RC5
98TC07 Big Hill 120 MGA94_54 52078597 644938821 29922 -50 1339 RC5
98TC08 Big Hill 90 MGA94_54 52080195 644947781 29101 -60 1509 RC5
98TC09 Big Hill 114 MGA94_54 52082221 644946079 29625 -60 1339 RC5
98TC10 Big Hill 134 MGA94_54 521018 6449576 2815 -50 1729 RC5
98TC11 Railway 35 MGA94_54 5224112 645137396 26701 -60 1329 RC5
80BGH06 Big Hill 6804 MGA94_54 520880 6449472 299 -60 1707 RCDDH3 5880BGH08 Big Hill 797 MGA94_54 52076879 644939093 29629 -60 1267 RCDDH3 69980BGH07 Big Hill 23 MGA94_54 52113656 6449599 27411 -60 1777 RC5
93MGM01 Pyrite Hill 70 MGA94_54 51818544 644971377 28628 -60 2228 RDDH4 2493MGM02 Pyrite Hill 180 MGA94_54 51851545 644945467 28479 -60 2588 RDDH4 4811PHR01 Pyrite Hill 150 MGA94_54 51843547 644907276 28534 -60 27906 RC5
11PHR02 Pyrite Hill 198 MGA94_54 51849992 644915931 28379 -60 27906 RC5
11PHR03 Pyrite Hill 240 MGA94_54 5185603 644918961 28026 -60 27906 RC5
11PHR04 Pyrite Hill 186 MGA94_54 51852863 6449257 28403 -60 27906 RC5
11PHR05 Pyrite Hill 234 MGA94_54 51858425 644939762 28022 -60 25906 RC5
11PHR06 Pyrite Hill 180 MGA94_54 5184909 644952259 28402 -60 23406 RC5
11PHR07 Pyrite Hill 174 MGA94_54 51841347 64495929 28286 -60 21906 RC5
11PHR08 Pyrite Hill 180 MGA94_54 51834274 644965585 28288 -60 21806 RC5
11PSR01 Pyrite Hill 59 MGA94_54 51874273 6448864 26838 -60 25806 RC5
11PSR02 Pyrite Hill 132 MGA94_54 51871938 644896001 27041 -60 25506 RC5
11PSR03 Pyrite Hill 78 MGA94_54 51868699 644905535 27279 -60 25506 RC5
12BER01 Railway 157 MGA94_54 52166731 644989323 27769 -60 141 RC5
12BER02 Railway 132 MGA94_54 52121267 644969067 27353 -60 162 RC5
12BER03 Railway 151 MGA94_54 52187901 645043547 28859 -60 102 RC5
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 26
Historic down-hole information (continued)
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
12BER04 Railway 148 MGA94_54 52235392 645126835 27435 -60 131 RC5
12BER05 Railway 145 MGA94_54 52243947 645116784 29973 -60 124 RC5
12BER06 Railway 169 MGA94_54 52248137 645109135 29595 -60 118 RC5
12BER07 Railway 115 MGA94_54 52232372 645074875 27791 -60 144 RC5
12BER08 Railway 193 MGA94_54 52222079 64508118 27316 -60 129 RC5
12BER09 Railway 13975 MGA94_54 52210125 645088144 27591 -60 129 RC5
12BER10 Railway 151 MGA94_54 52195345 645071618 28449 -60 129 RC5
12BER11 Railway 193 MGA94_54 52273722 645137661 26583 -60 153 RC5
12BER12 Railway 111 MGA94_54 52290973 645151676 27736 -60 153 RC5
12BER13 Railway 205 MGA94_54 52288381 645155754 27103 -60 156 RC5
12BER14 Railway 151 MGA94_54 52312483 645163707 28836 -60 152 RC5
12BER15 Railway 109 MGA94_54 5233113 64518417 28395 -60 154 RC5
12BER16 Railway 115 MGA94_54 52299408 645159199 27595 -60 156 RC5
12BER17 Railway 1155 MGA94_54 5225165 645131494 2691 -60 153 RC5
12BER18 Railway 157 MGA94_54 52233275 645128131 27229 -60 129 RC5
12BER19 Railway 97 MGA94_54 52224055 645106715 27616 -60 135 RC5
12BER20 Railway 120 MGA94_54 52129169 644973363 27695 -60 165 RC5
13BED01 Railway 3492 MGA94_54 52248021 645109243 29601 -60 3007 DDH1
16DM01 Pyrite Hill 1616 MGA94_54 51841138 644959389 28269 -60 2155 DDH1
16DM02 Pyrite Hill 1834 MGA94_54 51852662 644926158 28418 -60 2850 DDH1
16DM03 Big Hill 1265 MGA94_54 5210371 644956749 28301 -60 1585 DDH1
16DM04 Big Hill 1054 MGA94_54 52081474 64494644 29618 -55 1285 DDH1
16DM05 Railway 2465 MGA94_54 5221037 645088187 27662 -60 1285 DDH1
16DM06 Railway 1604 MGA94_54 52291157 645151913 2785 -60 1525 DDH1
16DM07 Railway 2425 MGA94_54 52299526 645159826 27636 -60 1561 DDH1
16DM08 Railway 2585 MGA94_54 52235145 645127307 27385 -60 1309 DDH1
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 27
Down hole length and interception depth ndash 2017 holes
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THD01 34 123 89 982 94 87
including 35 41 6 1143 119 106
and 50 55 5 1311 131 115
and 81 122 41 1366 118 11
17THD02 47 134 87 911 88 92
including 48 77 29 1238 111 114
and 116 134 18 1199 110 111
17THD03 40 635 235 894 116 108
including 49 63 14 1076 143 124
17THD04 20 29 9 1033 86 872 96 24 703 88 81
17THD05 44 60 16 993 98 85
including 44 56 12 1094 109 94
71 76 5 840 64 6317THD06 39 85 46 1136 114 101
including 40 70 30 1227 122 104
and 76 85 9 1148 107 100
17THD07 15 128 113 879 81 88
including 47 55 8 1048 117 103
and 61 102 41 1452 125 123
142 152 10 704 6 102199 204 5 706 49 65
17THR001 27 63 36 1075 106 104
including 37 63 26 1280 119 115
75 84 9 755 91 139
17THR002 37 43 6 711 69 82
91 136 45 983 98 105
including 102 136 34 1190 117 118
17THR003 4 59 55 937 93 94
including 10 46 36 1212 116 110
17THR004 49 146 97 888 102 102
including 51 113 62 1051 114 113
17THR005 52 72 20 1053 128 126
including 53 63 10 1145 125 130
17THR006 14 74 60 754 86 87
including 17 44 27 1176 125 121
17THR007 5 22 17 837 0 125
including 12 19 7 1049 0 105
128 154 26 1034 114 115
including 128 146 18 1321 144 143
17THR008 37 78 41 1319 122 11217THR009 29 65 36 957 94 92including 34 60 26 1150 111 102
100 105 5 833 129 12717THR010 51 57 6 729 49 5317THR011 30 83 53 1116 12 109
including 31 62 31 1423 155 135
17THR012 50 117 67 748 75 86
including 59 67 8 1084 103 126
and 75 102 27 1120 110 113
172 177 5 725 64 64
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 28
Down hole length and interception depth ndash 2017 holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THR013 19 73 54 888 54 5
including 19 29 10 2576 88 77
17THR014 12 45 33 749 81 74
including 25 33 8 1148 113 94
17THR015 40 48 8 995 89 8117THR016 66 115 49 1096 129 134
including 66 81 15 1184 142 139
and 89 114 25 1183 134 141
17THR017 54 112 58 1383 132 128
including 56 85 29 2042 183 158
17THR018 47 63 16 1124 151 14117THR019 42 59 17 1032 107 114
17THR020 29 49 20 1067 116 115
including 29 36 7 1352 135 126
17THR021 44 64 20 1204 131 12717THR022 101 138 37 1152 107 1217THR023 91 137 46 1271 139 133
including 91 97 6 1953 187 166
and 114 125 11 2707 311 265
17THR027 29 54 25 1176 126 118
including 30 47 17 1382 141 125
Down hole length and interception depth ndash historic holes
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
11PHR02 74 114 40 875 108 116
11PHR03 150 162 12 750 83 96
11PHR03 163 190 27 732 106 119
11PHR03 206 227 21 988 117 13
11PHR04 124 172 48 1049 128 129
11PHR05 197 219 22 1138 107 133
11PHR06 104 135 31 854 83 115
11PHR06 155 171 16 1315 12 122
11PHR07 96 147 51 941 95 99
11PHR08 103 115 12 1417 139 148
11PHR08 126 144 18 1048 126 142
12BER01 115 139 24 768 72 74
12BER02 18 25 7 1062 103 93
12BER02 113 123 10 907 85 86
12BER04 41 90 49 1191 114 127
12BER04 121 126 5 1241 9 112
12BER05 33 39 6 1109 79 92
12BER05 65 76 11 721 63 66
12BER06 131 169 38 844 83 128
12BER07 38 43 5 704 10 101
12BER09 33 92 59 841 9 116
12BER11 31 62 31 738 84 126
12BER11 92 159 67 1061 10 131
12BER11 173 193 20 737 67 83
12BER12 27 81 54 1430 181 189
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 29
Down hole length and interception depth ndash historic holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
12BER13 21 42 21 761 74 91
12BER13 65 75 10 1882 204 216
12BER14 28 55 27 1013 125 129
12BER16 25 100 75 1008 106 107
12BER17 92 99 7 739 6 63
12BER18 117 157 40 1017 112 114
12BER19 34 56 22 1151 104 108
12BER19 68 75 7 780 61 6
12BER20 21 46 25 731 69 75
13BED01 266 2915 255 872 85 78
16DM01 96 147 51 851 91 86
16DM02 127 172 45 1118 138 136
16DM03 104 111 7 838 103 9
16DM04 91 99 8 887 91 84
16DM05 30 103 73 793 82 9
16DM05 199 211 12 830 251 221
16DM06 28 84 56 1280 162 167
16DM06 138 146 8 722 78 112
16DM07 35 60 25 1232 111 111
16DM07 71 104 33 1224 133 134
16DM08 76 100 24 1026 11 12
16DM08 165 177 12 921 122 126
17THD01 34 123 89 982 94 87
17THD02 47 134 87 911 88 92
17THD03 40 635 235 894 116 108
17THD04 20 29 9 1033 86 8
17THD04 72 96 24 703 88 81
17THD05 44 60 16 993 98 85
17THD05 71 76 5 840 64 63
17THD06 39 85 46 1136 114 101
17THD07 15 128 113 879 81 88
17THD07 142 152 10 704 6 102
17THD07 199 204 5 706 49 65
17THR001 27 63 36 1075 106 104
17THR001 75 84 9 755 91 139
17THR002 37 43 6 711 69 82
17THR002 91 136 45 983 98 105
17THR003 4 59 55 937 93 94
17THR004 49 146 97 888 102 102
17THR005 52 72 20 1053 128 126
17THR006 14 74 60 754 86 87
17THR007 5 22 17 837 0 125
17THR007 128 154 26 1034 114 115
17THR008 37 78 41 1319 122 112
17THR009 29 65 36 957 94 92
17THR009 100 105 5 833 129 127
17THR010 51 57 6 729 49 53
17THR011 30 83 53 1116 12 109
17THR012 50 117 67 748 75 86
17THR012 172 177 5 725 64 64
17THR013 19 73 54 888 54 5
17THR014 12 45 33 749 81 74
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 30
Down hole length and interception depth ndash historic holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THR015 40 48 8 995 89 81
17THR016 66 115 49 1096 129 134
17THR017 54 112 58 1383 132 128
17THR018 47 63 16 1124 151 141
17THR019 42 59 17 1032 32 114
17THR020 29 49 20 1067 116 115
17THR021 44 64 20 1204 131 127
17THR022 101 138 37 1152 107 12
17THR023 91 137 46 1271 139 133
17THR027 29 54 25 1176 126 118
67TH01 12344 20001 7657 979 0 0
70BH01 3962 5334 1372 3323 31 0
70BH01 6431 8443 2012 1203 95 0
70BH02 7406 8686 128 704 75 0
70TH02 78 841 61 1666 175 154
70TH02 871 1021 15 1661 8 72
70TH03 777 1295 518 1016 129 132
80BGH05 39 49 10 752 0 0
80BGH06 18 6804 5004 969 0 0
80BGH08 44 7815 3415 939 0 0
80PYH01 75 17 95 725 0 0
80PYH02 341 4825 1415 1121 0 0
80PYH03 23 35 12 711 0 0
80PYH04 3975 55 1525 735 0 0
80PYH05 367 65 283 1160 118 0
80PYH06 54 62 8 905 0 0
80PYH07 67 794 124 1113 125 0
80PYH10 4845 1374 8895 831 86 0
80PYH11 346 465 119 916 8 0
80PYH11 572 9105 3385 1239 106 0
80PYH12 302 365 63 791 102 0
80PYH12 8515 908 565 857 146 0
80PYH14 2518 2734 216 1252 131 0
93MGM02 85 160 75 941 85 0
98TC01 20 47 27 744 91 126
98TC01 48 71 23 917 119 164
98TC03 34 45 11 1480 55 6
98TC03 68 79 11 1095 43 42
98TC04 84 94 10 966 39 4
98TC04 107 133 26 771 77 82
98TC05 24 62 38 754 64 7
98TC06 66 72 6 727 104 111
98TC06 76 101 25 767 101 106
98TC07 35 46 11 1546 165 171
98TC07 61 82 21 728 91 94
98TC09 32 39 7 716 49 174
98TC09 82 107 25 732 6 67
98TC10 101 125 24 732 79 8
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 31
Criteria JORC Code Explanation Commentary
Data aggregation methods
a In reporting Exploration Results weighting averaging techniques maximum andor minimum grade truncations (eg cutting of high grades) and cut-off grades are usually Material and should be stated
a Where aggregate intercepts incorporate short lengths of high grade results and longer lengths of low grade results the procedure used for such aggregation should be stated and some typical examples of such aggregations should be shown in detail
a The assumptions used for any reporting of metal equivalent values should be clearly stated
Drilling a Drill hole intercept grades are typically reported as down-hole
length-weighted averages with any non-recovered sample within the reported intervals treated as no grade The cut-off used for selecting significant intersections is selected to reflect the overall tenor of mineralisation in most cases 500ppm cobalt
a No top cuts have been applied when calculating average grades for reported significant intersections
a No metal equivalent values are reported
Relationship between mineralis- ation widths and intercept lengths
a These relationships are particularly important in the reporting of Exploration Results
a If the geometry of the mineralisation with respect to the drillhole angle is known its nature should be reported
a If it is not known and only the down hole lengths are reported there should be a clear statement to this effect (eg lsquodown hole length true width not knownrsquo)
a Drill holes at the Thackaringa project are typically angled at 50deg or 60deg and drilled perpendicular to the mineralised trend with drilling orientations adjusted along strike to accommodate folded geological sequences
a Mineralisation at the Big Hill and Railway prospects is steeply dipping and consequently mineralised intersections will be greater than true width At Pyrite Hill mineralisation is gently dipping and mineralised intersections will be close to true width
a There is insufficient geological knowledge to accurately estimate true widths and as such all drill intersections are reported as down hole lengths
Diagrams a Appropriate maps and sections (with scales) and tabulations of intercepts should be included for any significant discovery being reported These should include but not be limited to a plan view of drill hole collar locations and appropriate sectional views
a Appropriate maps and sections are presented in the accompa-nying ASX release
Balanced reporting
a Where comprehensive reporting of all exploration results is not practicable representative reporting of both low and high grades andor widths should be practiced to avoid misleading reporting of Exploration Results
a Only mineralised drill hole intersections regarded as highly anomalous and of economic interest are reported The proportion of each hole represented by the reported intervals can be ascertained from the sum of the reported intervals divided by the total drill hole depth
a All assay results for drill holes included in the various Mineral Resource estimates have been considered and comprise results not necessarily regarded as anomalous
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 32
Criteria JORC Code Explanation Commentary
Other substantive exploration data
a Other exploration data if meaningful and material should be reported including (but not limited to) geological obser-vations geophysical survey results geochemical survey results bulk samples ndash size and method of treatment metallurgical test results bulk density groun d- water geotechnical and rock characteristics potential deleterious or contaminating substances
a No further exploration data is deemed material to the results presented in this release
Further work a The nature and scale of planned further work (eg tests for lateral extensions or depth extensions or large-scale step-out drilling)
a Diagrams clearly highlighting the areas of possible extensions including the main geological interpretations and future drilling areas provided this information is not commercially sensitive
a The nature and scale of planned further work will be determined following the completion of revised Mineral Resource estimation for the Thackaringa deposits scheduled for May 2017
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 9
Big HillThe Big Hill deposit is an off-set southwestern extension of the high-grade metamorphic host at Railway The drilling at Big Hill comprised two diamond holes for a total of 219m and three RC holes for a total of 314m The RC program was designed to test the mineralisation at sparsely explored north-eastern end of the prospect at an interpreted offset fault zone between Big Hill and Railway The diamond program comprised holes to provide solid core to assist the structural interpretation of this complex hinge structure
Big Hill results
The 2017 drilling at Big Hill has discovered some structural complications at a fault zone nevertheless some of the highest-yet cobalt mineralisation was intersected in this section Best mineralised intercepts include
a Drillhole 17THR013 ndash 54m 888ppm Co 54 S and 50 Fe from 19m drill depth
Figure 7 Field Crew - RC Drill Rig - Railway Deposit
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 10
Figure 8 Plan view of Big HillFor
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 11
Figure 9 Big Hill X-section along plane of 17THR013For
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 12
Cobalt Blue BackgroundCobalt Blue (ldquoCOBrdquo) is an exploration company focussed on green energy technology and strategic development to upgrade the existing mineral resource at the Thackaringa Cobalt Project in New South Wales This strategic metal is in strong demand for new generation batteries particularly lithium-ion batteries now being widely used in clean energy systems
COB has entered into a farm-in joint venture agreement with Broken Hill Prospecting Limited (ldquoBPLrdquo) in which COB acquired an initial 51 interest in the Thackaringa Cobalt Project COB will undertake exploration and development programs at the Thackaring Cobalt Project and subject to the achievement of milestones will acquire 100 of the Thackaringa Cobalt Project
The Thackaringa Project 23 km west of Broken Hill and 400km by rail from Port Pirie consists of four granted tenements (EL6622 EL8143 ML86 and ML87) with total area of 63 km2 The main target for exploration is well known and contains documented large tonnage cobalt bearing pyrite deposits The project area is under-explored with the vast majority of historical exploration directed at or around the outcropping pyritic cobalt deposits at Pyrite Hill and Big Hill
Potential to extend the Mineral Resource at Pyrite Hill Big Hill Railway and the other prospects is high Numerous other prospects within COBrsquos tenement package are early stage and under-explored
Looking forward we would like our shareholders to keep in touch with COB updates and related news items which we will post on our website the ASX announcements platform as well as social media such as Facebook ( ) and LinkedIn ( ) Please donrsquot hesitate to join the lsquoCOB friendsrsquo on social media and also to join our newsletter mailing list at our website
Joe KaderavekChief Executive Officerjoekaderavekcobaltblueholdingscom(02) 9966 5629
Competent Person StatementThe information in this report that relates to exploration results Mineral Resources and Targets is based on information compiled by Mr Anthony Johnston BSc (Hons) who is a Member of the Australian Institute of Mining and Metallurgy and who is a non-executive director of Cobalt Blue Holdings Limited the Chief Executive Officer of Broken Hill Prospecting Limited and the Technical Manager of the Joint Venture Mr Johnston has sufficient experience which is relevant to the style of mineralisation and type of deposits under consideration and to the activity which he is undertaking to qualify as a Competent Person as defined in the 2004 amp 2012 Edition of the ldquoAustralasian Code for Reporting of Exploration Results Mineral Resources and Ore Reservesrdquo Mr Johnston consents to the inclusion in the announcement of the matters based on his information in the form and context that the information appears
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 13
Appendix ndash JORC Code 2012 Edition ndash Table 1 Section 1 ndash Sampling Techniques and Data(Criteria in this section apply to all succeeding sections)
Criteria JORC Code Explanation Commentary
Sampling techniques
a Nature and quality of sampling (eg cut channels random chips or specific specialised industry standard measurement tools appropriate to the minerals under investigation such as down-hole gamma sondes or handheld XRF instruments etc) These examples should not be taken as limiting the broad meaning of sampling
a Include reference to measures taken to ensure sample repre-sentivity and the appropriate calibration of any measurement tools or systems used
a Aspects of the determination of mineralisation that are Material to the Public Report
a In cases where lsquoindustry standardrsquo work has been done this would be relatively simple (eg lsquoreverse circulation drilling was used to obtain 1 m samples from which 3 kg was pulverised to produce a 30 g charge for fire assayrsquo) In other cases more explanation may be required such as where there is coarse gold that has inherent sampling problems Unusual commodities or mineralisation types (eg submarine nodules) may warrant disclosure of detailed information
Diamond Drilling (DD)Pre-1990a Diamond drilling was used to obtain core from which irregular
intervals reflecting visual mineralisation and geological logging were hand-split or sawn Samples were submitted for analysis using a mixed acid digestion and AAS methodology
Post-1990 a Diamond drilling (one drill hole) was used to obtain core from
which irregular intervals reflecting visual mineralisation and geological logging were sawn (quarter core for HQ) Samples were submitted for analysis using a mixed acid digestion and ICP-OES methodology
2016 Metallurgical Drillinga Eight HQ diameter diamond drill holes (DD) were drilled at
the Thackaringa project in late 2016 They will be used as metallurgical reference holes and to twin some of the previous reverse circulation percussion (RC) holes for QAQC and assay comparison between DD and RC There were two holes drilled at Pyrite Hill two at Big Hill and four at Railway
a Diamond drilling was used to obtain core from which regular (one-metre) intervals were sawn with
a one half core dispatched for analysis using a mixed acid digestion and ICP-AES methodology
a the other half was further sawn such that one quarter- core was sent for metallurgical test work and the other quarter-core retained for archival purposes
Historical Reverse Circulation Drilling a RC drilling was used to obtain a representative sample by means
of riffle splitting with samples submitted for analysis using the above-mentioned methodologies
a Pre-2000 drill samples were assayed for a small and variable suite of elements (sometimes only cobalt) The post-2000 drill samples (5095 samples) are all assayed by ICP-MS for a suite of 33 elements
2017 Diamond Drilling Program a This announcement summarises the results from approximately
23 of the 2017 diamond drilling program Fourteen HQ diameter diamond drill holes (DD) were assayed at the Thackaringa project They will be used as metallurgical reference holes and to twin some of the previous reverse circulation percussion (RC) holes for QAQC and assay comparison between DD and RC There were four holes drilled at Pyrite Hill two at Big Hill and 8 at Railway
a Diamond drilling (17THD01-03) was used to obtain core from which regular (one-metre) intervals were sawn with
a one half core dispatched for analysis using a mixed acid digestion and ICP-AES methodology
a the other half was retained for future metallurgical test work and archival purposes
a Diamond drilling (17THD04-14) was used to obtain core from which regular (one-metre) intervals were sawn with
a one quarter core dispatched for analysis using a mixed acid digestion and ICP-AES methodology
a the other three quarters was retained for future metallurgical test work and archival purposes
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 14
Criteria JORC Code Explanation Commentary
Sampling techniques (continued)
2017 RC drilling Program a This announcement summarises the results from approximately
23 of the 2017 RC drilling program Thirty eight (38) RC drill holes were drilled amp assayed at the Thackaringa project They will be used to infill the drill spacing of historic holes to allow a re-estimation of the existing Mineral Resource There were 12 holes drilled at Pyrite Hill three at Big Hill and 23 at Railway
a RC drilling was used to obtain a representative sample by means of riffle splitting with samples submitted for analysis using the above-mentioned methodologies
a The 2017 drill samples are all assayed by ICP-MS for a suite of 33 elements
Drilling techniques
a Drill type (eg core reverse circulation open-hole hammer rotary air blast auger Bangka sonic etc) and details (eg core diameter triple or standard tube depth of diamond tails face-sampling bit or other type whether core is oriented and if so by what method etc)
a The Thackaringa drilling database comprises a total of forty-eight (48) DD holes and eighty-one (81) RC drill holes Diamond drilling was predominantly completed with standard diameter conventional HQ and NQ utilising RC and percussion pre-collars to an average 25 metres (see Drill-hole Information for further details) Early (1960-1970) drill holes utilised HX ndash AX diameters dependent on drilling depth Reverse circulation drilling utilised standard drill-hole diameters (48rdquo-55rdquo) with a face sampling hammer
a During 2013 a single diamond drill hole (13BED01) was completed at the Railway deposit using a triple tube system with a HQ3 diameter
Year Drilling Metres
1967 1 diamond drill hole 3042
1970 4 diamond drill holes 4966
1980 18 diamond and 1 RC drill hole 171123
1993 2 diamond drill holes 250
1998 11 RC drill holes 109325
2011 11 RC drill holes 1811
2012 20 RC drill holes 287425
2013 1 diamond drill hole 3492
2016 8 diamond drill holes 14848
2017 14 diamond drill holes and 38 RC drill holes 6472
Total 48 diamond and 81 RC drill holes 1684653
a This ASX release describes assay results from seven (7) diamond drill holes and twenty-four (24) RC holes completed and assayed by April 2017 Commencement of that drilling program was reported to ASX by the company in April 2017
a Diamond drilling was completed using a triple tube system with a HQ3 diameter
a Holes were drilled at angles between 40 and 60 degrees from horizontal and the resulting core was oriented as part of the logging process
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 15
Criteria JORC Code Explanation Commentary
Drill sample recovery
a Method of recording and assessing core and chip sample recoveries and results assessed
a Measures taken to maximise sample recovery and ensure representative nature of the samples
a Whether a relationship exists between sample recovery and grade and whether sample bias may have occurred due to preferential lossgain of finecoarse material
Diamond Drilling
a Historical core recoveries were accurately quantified through measurement of actual core recovered versus drilled intervals
a Historical diamond drilling employed conventional drilling techniques while diamond drilling completed by Broken Hill Prospecting utilised a triple-tube system to maximise sample recovery
a Core recovery of 997 was achieved during completion of drill hole 13BED01
a Core recovery of 98 was achieved during the 2016 diamond drilling program
a Core recovery of 933 was achieved during the 2017 diamond drilling program
a No relationship between sample recovery and grade has been observed
Reverse Circulation Drilling
a Reverse circulation sample recoveries were visually estimated during drilling programs Where the estimated sample recovery was below 100 this was recorded in field logs by means of qualitative observation
a Reverse circulation drilling employed adequate air (using a compressor and booster) to maximise sample recovery
a No relationship between sample recovery and grade has been observed
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 16
Criteria JORC Code Explanation Commentary
Logging a Whether core and chip samples have been geologically and geotechnically logged to a level of detail to support appropriate Mineral Resource estimation mining studies and metallurgical studies
a Whether logging is qualitative or quantitative in nature Core (or costean channel etc) photography
a The total length and percentage of the relevant intersections logged
a A qualified geoscientist has logged all reported drill holes in their entirety This logging has been completed to a level of detail considered to accurately support Mineral Resource estimation and metallurgical studies The parameters logged include lithology alteration mineralisation and oxidation These parameters are both qualitative and quantitative in nature
a Diamond drilling completed in 2017 by BPL has been subject to geotechnical logging with parameters recorded including rock-quality designation (RQD) fracture frequency and hardness
a During 2013 a considerable amount of historical drilling was re-logged through review of available core stored at Broken Hill as well the re-interpretation of historical reports where core or percussion samples no longer exist A total of eight (8) diamond drill holes and sixteen (16) diamond drill holes with pre-collars were re-logged as detailed below
Hole ID Deposit Max Depth Hole TypePre-Collar Depth (m)
67TH01 Pyrite Hill 3042 DDH1 ndash
70TH02 Pyrite Hill 1486 DDH1 ndash
70TH03 Pyrite Hill 1414 DDH1 ndash
70BH01 Big Hill 1027 DDH1 ndash
70BH02 Big Hill 1039 DDH1 ndash
80PYH13 Pyrite Hill 77 DDH1 ndash
80PYH14 Pyrite Hill 3003 DDH1 ndash
80BGH09 Big Hill 1005 DDH1 ndash
80PYH01 Pyrite Hill 2453 PDDH2 6
80PYH02 Pyrite Hill 513 PDDH2 3358
80PYH04 Pyrite Hill 55 PDDH2 387
80PYH05 Pyrite Hill 936 PDDH2 18
80PYH06 Pyrite Hill 855 PDDH2 18
80PYH07 Pyrite Hill 945 PDDH2 12
80PYH08 Pyrite Hill 110 PDDH2 8
80PYH09 Pyrite Hill 1005 PDDH2 8
80PYH10 Pyrite Hill 1453 PDDH2 255
80PYH11 Pyrite Hill 1031 PDDH2 18
80PYH12 Pyrite Hill 1095 PDDH2 42
80BGH05 Big Hill 5486 RCDDH3 455
80BGH06 Big Hill 6804 RCDDH3 58
80BGH08 Big Hill 797 RCDDH3 699
93MGM01 Pyrite Hill 70 RDDH4 24
93MGM02 Pyrite Hill 180 RDDH4 48
1 Diamond drill hole2 Diamond drill hole with percussion pre-collar3 Diamond drill hole with reverse circulation pre-collar4 Diamond drill hole with rotary air blast pre-collar
a Litho-geochemistry has been used to verify geological logging where available for drilling completed by Broken Hill Prospecting post 2010
a Representative reference trays of chips from reverse circulation drilling completed post 2010 have been retained by Broken Hill Prospecting
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 17
Criteria JORC Code Explanation Commentary
Sub-sampling techniques and sample preparation
a If core whether cut or sawn and whether quarter half or all core taken
a If non-core whether riffled tube sampled rotary split etc and whether sampled wet or dry
a For all sample types the nature quality and appropriateness of the sample preparation technique
a Quality control procedures adopted for all sub-sampling stages to maximise representivity of samples
a Measures taken to ensure that the sampling is representative of the in situ material collected including for instance results for field duplicatesecond-half sampling
a Whether sample sizes are appropriate to the grain size of the material being sampled
Diamond Drilling (DD)Pre-1990a Core samples were hand-split or sawn with re-logging of available
historical core (see Logging) indicating a 7030 (retainedassayed) split was typical The variation of sample ratios noted are consid-ered consistent with the sub-sampling technique (hand-splitting)
a No second half samples were submitted for analysis a It is considered water used for core cutting is unprocessed and
unlikely to have introduced sample contamination a Procedures relating to the definition of the line of cutting or splitting
are not available It is expected that lsquostandard industry practicersquo for the period was applied to maximize sample representivity
Post-1990 a NQ drilling core was sawn with half core submitted for assay a HQ drilling core was sawn with quarter core submitted for assay a No second half samples were submitted for analysis a It is considered water used for core cutting is unprocessed and
unlikely to have introduced sample contamination a Procedures relating to the definition of the line of cutting or splitting
are not available It is expected that lsquostandard industry practicersquo for the period was applied to maximise sample representivity
2016 Metallurgical Drilling a All HQ drill core was sawn into halves with each half then re-sawn
to provide 4 lengths of quarter core for each interval a One half core was submitted for assay a One quarter core was submitted for metallurgical test work a One quarter core was retained for archive a It is considered that the water used for core cutting is most
unlikely to have introduced sample contamination a Sample sawing and processing for test work were undertaken
according to lsquostandard industry practicersquo to maximise sample representivity
2017 Diamond Drilling a All HQ drill core was sawn into halves with each half then re-sawn to
provide 4 lengths of quarter core for each interval
a One quarter ndash one half core was submitted for assay
a One quarter ndash three quarter core was retained for archive
a It is considered that the water used for core cutting is most unlikely to have introduced sample contamination
a Sample sawing and processing for test work were undertaken according to lsquostandard industry practicersquo to maximise sample representivity
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 18
Criteria JORC Code Explanation Commentary
Sub-sampling techniques and sample preparation (continued)
Historical Reverse Circulation Drilling a Sub-sampling of reverse circulationpercussion chips was
achieved using a cyclone with cone or riffle splitter a During drilling operations the sample cyclone and splitter were
regularly cleaned to prevent down hole sample contamination a Dry sampling was achieved with the use of adequate air using a
compressor and booster where groundwater was encountered a During reverse circulation drilling completed by Broken Hill
Prospecting duplicate samples were collected at the time of drilling These were obtained by spearing the bulk material held in the PVC sacks using a spear made of 40mm diameter PVC pipe three samples were speared through the full depth of the bulk material and these were combined to form one sample
a The Thackaringa drilling database includes a total of 139 field duplicates collected during reverse circulation drilling This reflects a ratio of approximately one field duplicate in every 32 samples (31) for drill holes where duplicates were collected (31 drill holes for 4469 metres) and an overall ratio of one field duplicate in every 42 samples (24) for all reverse circulation drill holes (43 drill holes for 58015 metres)
a Statistical analysis of field duplicates collected during drilling completed by Broken Hill Prospecting (119 duplicates representing 86 of all field duplicates) considered 18 elements of which only chromium lanthanum and titanium show some bias in the duplicate samples For cobalt the confidence limits were evenly placed either side of zero and the duplicates are deemed to be representative of the original samples
2017 Reverse Circulation Drilling a Sub-sampling of reverse circulationpercussion chips was achieved
using a riffle splitter
a During drilling operations the splitter was regularly cleaned to prevent down hole sample contamination
a Dry sampling was achieved with the use of adequate air using a compressor and booster where groundwater was encountered
a During reverse circulation drilling completed by Broken Hill Prospecting duplicate samples were collected at the time of drilling These were obtained by riffle splitting the remnant bulk sample following collection of the primary split
a Field duplicate samples were collected regularly during drilling (for every 18th sample on average)
a Assay results received to date include analysis of 120 field duplicate pairs from 24 RC drill holes
a A measure of the average precision of the sampling sample preparation and assaying methods given by the mean per cent difference (MPD) assay values of the duplicate pairs is summarised below Overall the sampling and assay precision for Co Fe and S at economically significant grades is regarded as reasonable
RC Field Duplicate Pairs
Co Cut-Off Count Co MPD S MPD Fe MPD
All 120 13 16 9
200ppm 52 13 11 10
500ppm 34 12 9 9
1000ppm 20 8 7 7
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 19
Criteria JORC Code Explanation Commentary
Quality of assay data and laboratory tests
a The nature quality and appropriateness of the assaying and laboratory procedures used and whether the technique is considered partial or total
a For geophysical tools spectrometers handheld XRF instruments etc the parameters used in determining the analysis including instrument make and model reading times calibrations factors applied and their derivation etc
a Nature of quality control proce-dures adopted (eg standards blanks duplicates external laboratory checks) and whether acceptable levels of accuracy (ie lack of bias) and precision have been established
a The nature and quality of all assaying and laboratory procedures employed for samples obtained through drilling (diamond and reverse circulation) are considered lsquoindustry standardrsquo for the respective periods
a The assay techniques employed for drilling (diamond and reverse circulation) include mixed acid digestion with ICP-OES and AAS finishes These methods are considered appropriate for the targeted mineralisation and regarded as a lsquonear totalrsquo digestion technique with resistive phases not expected to affect cobalt analyses
a All samples have been processed at independent commercial laboratories including AMDEL Australian Laboratory Services (ALS) Analabs and Genalysis
a All samples from drilling completed by Broken Hill Prospecting during 2011-2012 were assayed at ALS in Orange New South Wales All samples from drilling completed by Broken Hill Prospecting during 2016-2017 were assayed at ALS Adelaide South Australia ALS is a NATA Accredited Laboratory and qualifies for JASANZ ISO90012008 quality systems ALS maintains robust internal QAQC procedures (including analysis of standards repeats and blanks)
a To monitor the accuracy of assay results from the 2017 Thackaringa drilling CRM standards were included in the assay sample stream every 24 samples (on average) for RC chips and every 30 samples for diamond core The CRM samples were purchased from Ore Research amp Exploration Pty Ltd and the results are summarised below
Cobalt Sulphur Iron
OREAS Standard Count plusmn1SD plusmn2SD plusmn3SD plusmn3SD+ plusmn1SD plusmn2SD plusmn3SD plusmn3SD+ plusmn1SD plusmn2SD plusmn3SD plusmn3SD+
160 Low S Blank (28ppm Co) 12 10 ndash ndash 2 7 ndash ndash 5 6 2 2 2
162 Medium Grade (631ppm Co) 53 37 12 3 ndash 32 18 3 ndash 14 12 13 14
163 Low Grade (230ppm Co) 40 30 8 2 ndash 7 25 7 1 2 3 2 33
165 High Grade (2445ppm Co) 13 11 2 ndash ndash 7 5 1 ndash 1 5 2 5
166 High Grade (1970ppm Co) 35 26 8 ndash 1 27 6 ndash 2 9 5 5 16
153 114 30 5 3 80 54 11 8 32 27 24 70
75 20 3 2 52 35 7 5 21 18 16 46
Cobalt CRM Standards
Internal COB assay QAQC protocols cobalt performed well with 95 standard analyses falling within two standard deviations of the certified value and 75 within one SD No systematic out-of-specification trends were identified and there was no discernible tendency for a particular Co standard to preferentially assay either higher or lower than the certified Co concentration
Cobalt Blanks
A number of blanks were also submitted with the RC chip and diamond core samples mdash the OREAS160 CRM is essentially a low-sulphide blank with respect to cobalt (28ppm) and the results of assay of this standard are summarised in Table 1 In addition five quartz sand blanks were submitted bracketing very pyrite-rich intervals in diamond drill holes 17THD06 and 17THD07 Overall the quartz sand blanks returned a maximum of 69ppm Co 004 S and 065 Fe which are regarded as similar to background values and any contamination during sample preparation at the assay laboratory is likely to be immaterial to the final results
Based on the assay of standards and blanks with 95 of the Co results falling within two standard deviations of the certified value it is concluded that the assay results for Co are likely to be representative for the material submitted with no additional source of inaccuracy or bias identified
Sulphur CRM Standards
sulphur was reasonably well-performed with 87 of the total 153 standard analyses falling within two standard deviations of the certified value and 95 within 3SD
Iron CRM Standards
Iron analysis of standards showed poor accuracy with a tendency to assay low mdash 46 of the assays fall outside of 3 SD typically but not exclusively lower than the certified value
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 20
Criteria JORC Code Explanation Commentary
Verification of sampling and assaying
a The verification of significant intersections by either inde-pendent or alternative company personnel
a The use of twinned holes
a Documentation of primary data data entry procedures data verification data storage (physical and electronic) protocols
a Discuss any adjustment to assay data
a Historical drilling intersections were internally verified by personnel employed by previous explorers including CRAE Pty Limited Central Austin Pty Limited and Hunter Resources Broken Hill Prospecting has completed a systematic review of the related data
a The Thackaringa drilling database exists in electronic form as a Microsoft Access database Information related to individual drill holes is stored in digital files as extracted from historical reports (typically including location plan section logs photos surveys assays and petrology)
a Historical drilling data available in electronic form has been re-formatted and imported into the drilling database
a Quantitative historical drilling data including assays have been captured electronically during systematic data compilation and validation completed by Broken Hill Prospecting
a Samples returning assays below detection limits are assigned half detection limit values in the database
a All significant intersections are verified by the Companyrsquos Exploration Manager and independent geological consultant
Location of data points
a Accuracy and quality of surveys used to locate drill holes (collar and down-hole surveys) trenches mine workings and other locations used in Mineral Resource estimation
a Specification of the grid system used
a Quality and adequacy of topographic control
a Historical drill collars have been relocated and surveyed using a differential GPS (DGPS) In the instances where no collar could be located the position has been derived from georeferenced historical plans
a During systematic data validation completed in 2016 three drill holes at Big Hill were found to be incorrectly located One collar was located and surveyed by GPS and two were digitised from georeferenced historical plans (reported to the nearest metre) as the collars had been destroyed These corrections were captured in the Big Hill Mineral Resource estimate
a Down hole surveys using digital cameras were completed on all post 2000 drilling Down hole surveys for some earlier drilling were estimated from hole trace and section data where raw survey data was not reported
a All 2017 Thackaringa drill hole collars were located and surveyed with DGPS by an independent surveyor with reported accuracy of plusmn005m in horizontal and vertical measurement
a Downhole surveys using digital cameras were completed on all 2017 drill-holes
a All data is recorded in the GDA94 datum UTM Zone 54 (MGA54)
a 3D validation of drilling data has been completed by independent geological consultants to support detailed geological modelling in Microminetrade software
a The quality of topographic control is deemed adequate in consideration of the results presented in this release
Data spacing and distribution
a Data spacing for reporting of Exploration Results
a Whether the data spacing and distribution is sufficient to estab-lish the degree of geological and grade continuity appropriate for the Mineral Resource and Ore Reserve estimation procedure(s) and classifications applied
a Whether sample compositing has been applied
a The data density of existing drill holes at Thackaringa has been materially increased by the 2017 drilling program which was undertaken primarily to undertake infill drilling
a Detailed geological mapping supported by drill-hole data of sufficient spacing and distribution to establish a 3D geological model
a The level of geological and grade continuity is appropriate for the Mineral Resource estimation methodologies used and the classifications applied (being wholly Inferred Mineral Resources) Note that a recalculation of the Mineral Resource using 2017 drilling and assay data will commence in mid-2017
a No sample compositing has been applied to reported intersections
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 21
Criteria JORC Code Explanation Commentary
Orientation of data in relation to geological structure
a Whether the orientation of sampling achieves unbiased sampling of possible structures and the extent to which this is known considering the deposit type
a If the relationship between the drilling orientation and the orientation of key mineralised structures is considered to have introduced a sampling bias this should be assessed and reported if material
a The 2017 drill holes at the Thackaringa project were typically angled at -500 or -600 to the horizontal and drilled perpendicular to the mineralised trend with drilling orientations adjusted along strike to accommodate folded geological sequences
a Mineralisation at the Big Hill and Railway prospects is steeply dipping and consequently mineralised intersections will be greater than true width At Pyrite Hill mineralisation is gently dipping and mineralised intersections will be close to true width
a The drilling orientation is not considered to have introduced a sampling bias on assessment of the current geological interpretation
Sample security
a The measures taken to ensure sample security
a Sample security procedures are considered to be lsquoindustry standardrsquo for the respective periods
a Following recent drilling completed by BPL samples were trucked by an independent courier directly from Broken Hill to ALS Adelaide
a BPL consider that risks associated with sample security are limited given the nature of the targeted mineralisation
Audits or reviews
a The results of any audits or reviews of sampling techniques and data
a In late 2016 an independent validation of the Thackaringa drilling database was completed
a The data validation process consisted of systematic review of drilling data (collars assays and surveys) for identification of transcription errors
a Following review historical drill hole locations were also validated against georeferenced historical maps to confirm their location
a Three (3) drill holes at Big Hill were found to be incorrectly located One collar was located and surveyed by GPS and two were digitised from georeferenced historical plans (reported to the nearest metre) as the collars had been destroyed These corrections were captured in the Big Hill Mineral Resource estimate
a Total depths for all holes were checked against original reports
a Final 3D validation of drilling data has been completed by independent geological consultants to support detailed geological modelling in Microminetrade software
a Audits and reviews of QAQC results and procedures are further described in preceding sections of this table including Quality of assay data and laboratory tests Sub-sampling techniques and sample preparation and Logging
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 22
Section 2 Reporting of Exploration Results(Criteria listed in the preceding section also apply to this section)
Criteria JORC Code Explanation Commentary
Mineral tenement and land tenure status
a Type reference namenumber location and ownership including agreements or material issues with third parties such as joint ventures partnerships overriding royalties native title interests historical sites wilderness or national park and environmental settings
a The security of the tenure held at the time of reporting along with any known impediments to obtaining a licence to operate in the area
a The Thackaringa Cobalt project is located approximately 25 kilometres west-southwest of Broken Hill and comprises four tenements with a total area of 63 km2
Tenement
Registered amp Beneficial Holder Minerals Grant Date Expiry Date
Annual Expenditure
Commit-ment
EL6622 Broken Hill Prospecting Limited (BPL)
Group 1 30082006 29082017 $47000
EL 8143 BPL Group 1 26072013 26072017 $14000
ML86 BPL Cobalt iron nickel platinum sulphur
05111975 04112017 $75000
ML87 BPL Cobalt iron nickel platinum sulphur
05111975 04112017 $75000
a The project tenure is subject to a Farm-In agreement between Cobalt Blue Holdings Limited (COB) and Broken Hill Prospecting Limited (BPL) The nature of this agreement is detailed in the COB Replacement Prospectus (as released 4 January 2017)
a The nearest residence (Thackaringa Station) is located approxi-mately three kilometres west of EL6622
a EL6622 is intersected by the Transcontinental Railway the Barrier Highway is located the north of the licence boundaries
a The majority of the project tenure is covered by Western Lands Lease which is considered to extinguish native title interest However Native Title Determination NC9732 (Barkandji Traditional Owners 8) is current over the area and may be relevant to Crown Land parcels (eg public roads) within the project area
a The project tenure is more than 90 kilometres from the nearest National Park and or Wilderness Area (Kinchega National Park) and approximately 20 kilometres south of the nearest Water Supply Reserve (Umberumberka Reservoir Water Supply Reserve)
a The Company is not aware of any impediments to obtaining a licence to operate in the area
Exploration done by other parties
a Acknowledgment and appraisal of exploration by other parties
a A detailed and complete record of all exploration activities undertaken prior to the BPL 2016 drilling program is appended to the JORC Table 1 which forms part of the Cobalt Blue Prospectus Document available on the COB website
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 23
Criteria JORC Code Explanation Commentary
Geology a Deposit type geological setting and style of mineralisation
Regional Geological Setting a The Thackaringa project is located in a deformed and metamor-
phosed Proterozoic supracrustal succession named the Willyama Supergroup which crops out as several inliers in western New South Wales including the Broken Hill Block (Willis et al 1982)
a Exploration by BPL Limited has been focused on the discovery of cobaltiferous pyrite deposits and Broken Hill type base-metal mineralisation both of which are known from historical exploration in the district
a The project area covers portions of the Broken Hill and Thackaringa group successions which host the majority of mineralisation in the region including the Broken Hill base-metal deposit The Sundown Group suite is also present The extensive sequence of quartz-albite-plagioclase rock that hosts the cobaltiferous pyrite mineralisation is interpreted as belonging to the Himalaya Formation which is stratigraphically at the top of the Thackaringa Group
Local Geological Setting a The oldest rocks in the region belong to the Curnamona Craton
which outcrops on the Broken Hill and Euriowie blocks a The overlying Proterozoic rocks have been broadly subdivided
into three major groupings of which the oldest groups are the highly deformed metasediments and igneous derived rocks of the Thackaringa and Broken Hill groups They comprise a major part of the Willyama Supergroup and host the giant Broken Hill massive Pb-Zn-Ag sulphide ore body EL6622 is within the Broken Hill block of the Curnamona Craton
Mineralisation Style a The Thackaringa Mineral deposits (Pyrite Hill Big Hill and Railway)
are characterised by large tonnage cobaltiferous-pyrite minerali-sation hosted within siliceous albitic gneisses and schists of the Himalaya Formation
a Cobalt mineralisation exists within stratabound pyritic horizons where cobalt is present within the pyrite lattice Mineralogical studies have indicated the majority of cobalt (~85) is found in solid solution with primary pyrite (Henley 1998)
a A strong correlation between pyrite content and cobalt grade is observed
a The regional geological setting indicates additional mineralisation targets including
a Stratiform Broken Hill Type (BHT) Copper-Lead-Zinc-Silver deposits
a Copper-rich BHT deposits a Stratiform to stratabound Copper-Cobalt-Gold deposits a Epigenetic Gold and Base metal deposits
Drill hole Information
a A summary of all information mat- erial to the understanding of the exploration results including a tab- ulation of the following information for all Material drill holes
a easting and northing of the drill hole collar
a elevation or RL (Reduced Level ndash elevation above sea level in metres) of the drill hole collar
a dip and azimuth of the hole
a down hole length and interception depth
a See drill holle summaries below
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 24
Drill hole summaries
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
17THD01 Pyrite Hill 1242 MGA54 518382 6449551 28906 -40 222 DDH1
17THD02 Pyrite Hill 1497 MGA54 518475 6449445 29054 -40 258 DDH1
17THD03 Pyrite Hill 785 MGA54 518370 6449190 30328 -40 2851 DDH1
17THD04 Big Hill 1198 MGA54 521078 6449589 27841 -45 1551 DDH1
17THD05 Big Hill 995 MGA54 521669 6449889 2785 -40 131 DDH1
17THD06 Railway 1655 MGA54 521970 6450705 2872 -45 128 DDH1
17THD07 Railway 2746 MGA54 522569 6451282 27067 -45 1565 DDH1
17THD08 Railway 1325 MGA54 522784 6451280 268881 -45 326 DDH1
17THD09 Railway 1205 MGA54 522905 6451511 278471 -40 1525 DDH1
17THD10 Railway 842 MGA54 522992 6451569 279779 -45 130 DDH1
17THD11 Railway 1115 MGA54 523109 6451682 280847 -40 1605 DDH1
17THD12 Railway 1265 MGA54 522796 6451419 272936 -40 14075 DDH1
17THD13 Railway 1055 MGA54 522836 6451456 276747 -40 1385 DDH1
17THD14 Pyrite Hill 99 MGA54 518375 6449089 29425 -60 285 DDH1
17THR001 Railway 156 MGA54 522615 6451277 267561 -60 120 RC5
17THR002 Railway 160 MGA54 522573 6451299 268511 -60 120 RC5
17THR003 Railway 96 MGA54 522124 6450868 27739 -60 130 RC5
17THR004 Railway 150 MGA54 522387 6451319 271453 -60 120 RC5
17THR005 Railway 72 MGA54 522024 6450783 282154 -60 120 RC5
17THR006 Railway 114 MGA54 522049 6450780 28401 -58 125 RC5
17THR007 Railway 180 MGA54 521965 6450699 286585 -59 125 RC5
17THR008 Railway 132 MGA54 521917 6450562 291682 -56 105 RC5
17THR009 Railway 120 MGA54 521906 6450496 292751 -58 105 RC5
17THR010 Railway 72 MGA54 521959 6450398 286445 -56 285 RC5
17THR011 Railway 126 MGA54 522302 6451169 276812 -56 120 RC5
17THR012 Railway 180 MGA54 522440 6451304 274931 -58 173 RC5
17THR013 Big Hill 102 MGA54 521750 6449942 28489 -60 1305 RC5
17THR014 Big Hill 104 MGA54 521628 6449796 277545 -53 130 RC5
17THR015 Big Hill 108 MGA54 521793 6449918 284847 -58 310 RC5
17THR016 Pyrite Hill 138 MGA54 518446 6449209 290391 -57 283 RC5
17THR017 Pyrite Hill 120 MGA54 518449 6449263 293147 -56 2815 RC5
17THR018 Pyrite Hill 78 MGA54 518027 6449806 289567 -60 222 RC5
17THR019 Pyrite Hill 72 MGA54 518105 6449754 287701 -55 222 RC5
17THR020 Pyrite Hill 66 MGA54 518166 6449695 288685 -60 222 RC5
17THR021 Pyrite Hill 78 MGA54 518183 6449717 286007 -60 222 RC5
17THR022 Pyrite Hill 156 MGA54 518510 6449306 28682 -55 281 RC5
17THR023 Pyrite Hill 150 MGA54 518506 6449377 289481 -57 2645 RC5
17THR024 Pyrite Hill 150 MGA54 518457 6449498 288137 -595 2285 RC5
17THR025 Pyrite Hill 114 MGA54 518311 6449609 287463 -60 222 RC5
17THR026 Pyrite Hill 114 MGA54 518268 6449681 284164 -60 222 RC5
17THR027 Pyrite Hill 72 MGA54 518243 6449646 287176 -60 222 RC5
17THR028 Railway 150 MGA54 522457 6451167 300659 -60 350 RC5
17THR029 Railway 162 MGA54 522482 6451084 295964 -60 175 RC5
17THR030 Railway 138 MGA54 522783 6451423 270814 -55 140 RC5
17THR031 Railway 120 MGA54 522945 6451566 27619 -55 145 RC5
17THR032 Railway 132 MGA54 522819 6451473 273712 -53 140 RC5
17THR033 Railway 120 MGA54 522501 6451315 26963 -60 175 RC5
17THR034 Railway 132 MGA54 522321 6451214 275947 -55 127 RC5
17THR035 Railway 156 MGA54 522259 6451120 275749 -552 130 RC5
17THR036 Railway 92 MGA54 522186 6450998 275339 -612 130 RC5
17THR037 Railway 126 MGA54 522148 6450941 274202 -55 126 RC5
17THR038 Railway 168 MGA54 521927 6450619 289555 -55 108 RC5
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 25
Historic down-hole information
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
67TH01 Pyrite Hill 3042 MGA94_54 518564805 644946003 280643 -55 2606 DDH1
70TH02 Pyrite Hill 1486 MGA94_54 51827242 644968054 28408 -61 2186 DDH1
70TH03 Pyrite Hill 1414 MGA94_54 51844985 644921188 28981 -62 2836 DDH1
70BH01 Big Hill 1027 MGA94_54 52085056 64493085 28456 -47 3186 DDH1
70BH02 Big Hill 1039 MGA94_54 52078612 64492644 2801 -50 3186 DDH1
80PYH13 Pyrite Hill 77 MGA94_54 5183582 64490377 29035 -50 2807 DDH1
80PYH14 Pyrite Hill 3003 MGA94_54 51866118 644928762 27796 -60 2807 DDH1
80PYH03 Pyrite Hill 35 MGA94_54 5182515 64495699 2994 -60 2207 PDDH2 2280BGH09 Big Hill 1005 MGA94_54 52065743 644929252 27280 -50 1447 DDH1
80PYH01 Pyrite Hill 2453 MGA94_54 5182462 64495657 3011 -60 2027 PDDH2 680PYH02 Pyrite Hill 513 MGA94_54 5182607 64495742 2976 -60 2207 PDDH2 335880PYH04 Pyrite Hill 55 MGA94_54 51836655 644923174 30834 -60 2957 PDDH2 38780PYH05 Pyrite Hill 936 MGA94_54 51822697 644967819 28518 -49 2227 PDDH2 1880PYH06 Pyrite Hill 855 MGA94_54 51816348 64497573 28373 -544 2227 PDDH2 1880PYH07 Pyrite Hill 945 MGA94_54 51808406 644981836 28516 -55 2227 PDDH2 1280PYH08 Pyrite Hill 110 MGA94_54 51800954 644988543 28614 -60 2227 PDDH2 880PYH09 Pyrite Hill 1005 MGA94_54 5179174 644993176 28655 -485 2227 PDDH2 880PYH10 Pyrite Hill 1453 MGA94_54 51839296 644956596 28553 -50 2227 PDDH2 25580PYH11 Pyrite Hill 1031 MGA94_54 51844096 644932952 29725 -50 2807 PDDH2 1880PYH12 Pyrite Hill 1095 MGA94_54 51840728 644913731 29263 -50 2807 PDDH2 4280BGH05 Big Hill 5486 MGA94_54 52095535 644953441 28893 -60 1637 RCDDH3 45598TC01 Railway 100 MGA94_54 52275006 645133973 26727 -60 1589 RC5
98TC02 Railway 100 MGA94_54 52239241 645138683 26678 -60 1409 RC5
98TC03 Big Hill 84 MGA94_54 52081645 644936939 31305 -60 1359 RC5
98TC04 Big Hill 13825 MGA94_54 52086005 644945085 30409 -60 1409 RC5
98TC05 Big Hill 70 MGA94_54 520728 644932807 28863 -50 1229 RC5
98TC06 Big Hill 108 MGA94_54 520715 6449343 28513 -60 1259 RC5
98TC07 Big Hill 120 MGA94_54 52078597 644938821 29922 -50 1339 RC5
98TC08 Big Hill 90 MGA94_54 52080195 644947781 29101 -60 1509 RC5
98TC09 Big Hill 114 MGA94_54 52082221 644946079 29625 -60 1339 RC5
98TC10 Big Hill 134 MGA94_54 521018 6449576 2815 -50 1729 RC5
98TC11 Railway 35 MGA94_54 5224112 645137396 26701 -60 1329 RC5
80BGH06 Big Hill 6804 MGA94_54 520880 6449472 299 -60 1707 RCDDH3 5880BGH08 Big Hill 797 MGA94_54 52076879 644939093 29629 -60 1267 RCDDH3 69980BGH07 Big Hill 23 MGA94_54 52113656 6449599 27411 -60 1777 RC5
93MGM01 Pyrite Hill 70 MGA94_54 51818544 644971377 28628 -60 2228 RDDH4 2493MGM02 Pyrite Hill 180 MGA94_54 51851545 644945467 28479 -60 2588 RDDH4 4811PHR01 Pyrite Hill 150 MGA94_54 51843547 644907276 28534 -60 27906 RC5
11PHR02 Pyrite Hill 198 MGA94_54 51849992 644915931 28379 -60 27906 RC5
11PHR03 Pyrite Hill 240 MGA94_54 5185603 644918961 28026 -60 27906 RC5
11PHR04 Pyrite Hill 186 MGA94_54 51852863 6449257 28403 -60 27906 RC5
11PHR05 Pyrite Hill 234 MGA94_54 51858425 644939762 28022 -60 25906 RC5
11PHR06 Pyrite Hill 180 MGA94_54 5184909 644952259 28402 -60 23406 RC5
11PHR07 Pyrite Hill 174 MGA94_54 51841347 64495929 28286 -60 21906 RC5
11PHR08 Pyrite Hill 180 MGA94_54 51834274 644965585 28288 -60 21806 RC5
11PSR01 Pyrite Hill 59 MGA94_54 51874273 6448864 26838 -60 25806 RC5
11PSR02 Pyrite Hill 132 MGA94_54 51871938 644896001 27041 -60 25506 RC5
11PSR03 Pyrite Hill 78 MGA94_54 51868699 644905535 27279 -60 25506 RC5
12BER01 Railway 157 MGA94_54 52166731 644989323 27769 -60 141 RC5
12BER02 Railway 132 MGA94_54 52121267 644969067 27353 -60 162 RC5
12BER03 Railway 151 MGA94_54 52187901 645043547 28859 -60 102 RC5
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 26
Historic down-hole information (continued)
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
12BER04 Railway 148 MGA94_54 52235392 645126835 27435 -60 131 RC5
12BER05 Railway 145 MGA94_54 52243947 645116784 29973 -60 124 RC5
12BER06 Railway 169 MGA94_54 52248137 645109135 29595 -60 118 RC5
12BER07 Railway 115 MGA94_54 52232372 645074875 27791 -60 144 RC5
12BER08 Railway 193 MGA94_54 52222079 64508118 27316 -60 129 RC5
12BER09 Railway 13975 MGA94_54 52210125 645088144 27591 -60 129 RC5
12BER10 Railway 151 MGA94_54 52195345 645071618 28449 -60 129 RC5
12BER11 Railway 193 MGA94_54 52273722 645137661 26583 -60 153 RC5
12BER12 Railway 111 MGA94_54 52290973 645151676 27736 -60 153 RC5
12BER13 Railway 205 MGA94_54 52288381 645155754 27103 -60 156 RC5
12BER14 Railway 151 MGA94_54 52312483 645163707 28836 -60 152 RC5
12BER15 Railway 109 MGA94_54 5233113 64518417 28395 -60 154 RC5
12BER16 Railway 115 MGA94_54 52299408 645159199 27595 -60 156 RC5
12BER17 Railway 1155 MGA94_54 5225165 645131494 2691 -60 153 RC5
12BER18 Railway 157 MGA94_54 52233275 645128131 27229 -60 129 RC5
12BER19 Railway 97 MGA94_54 52224055 645106715 27616 -60 135 RC5
12BER20 Railway 120 MGA94_54 52129169 644973363 27695 -60 165 RC5
13BED01 Railway 3492 MGA94_54 52248021 645109243 29601 -60 3007 DDH1
16DM01 Pyrite Hill 1616 MGA94_54 51841138 644959389 28269 -60 2155 DDH1
16DM02 Pyrite Hill 1834 MGA94_54 51852662 644926158 28418 -60 2850 DDH1
16DM03 Big Hill 1265 MGA94_54 5210371 644956749 28301 -60 1585 DDH1
16DM04 Big Hill 1054 MGA94_54 52081474 64494644 29618 -55 1285 DDH1
16DM05 Railway 2465 MGA94_54 5221037 645088187 27662 -60 1285 DDH1
16DM06 Railway 1604 MGA94_54 52291157 645151913 2785 -60 1525 DDH1
16DM07 Railway 2425 MGA94_54 52299526 645159826 27636 -60 1561 DDH1
16DM08 Railway 2585 MGA94_54 52235145 645127307 27385 -60 1309 DDH1
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 27
Down hole length and interception depth ndash 2017 holes
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THD01 34 123 89 982 94 87
including 35 41 6 1143 119 106
and 50 55 5 1311 131 115
and 81 122 41 1366 118 11
17THD02 47 134 87 911 88 92
including 48 77 29 1238 111 114
and 116 134 18 1199 110 111
17THD03 40 635 235 894 116 108
including 49 63 14 1076 143 124
17THD04 20 29 9 1033 86 872 96 24 703 88 81
17THD05 44 60 16 993 98 85
including 44 56 12 1094 109 94
71 76 5 840 64 6317THD06 39 85 46 1136 114 101
including 40 70 30 1227 122 104
and 76 85 9 1148 107 100
17THD07 15 128 113 879 81 88
including 47 55 8 1048 117 103
and 61 102 41 1452 125 123
142 152 10 704 6 102199 204 5 706 49 65
17THR001 27 63 36 1075 106 104
including 37 63 26 1280 119 115
75 84 9 755 91 139
17THR002 37 43 6 711 69 82
91 136 45 983 98 105
including 102 136 34 1190 117 118
17THR003 4 59 55 937 93 94
including 10 46 36 1212 116 110
17THR004 49 146 97 888 102 102
including 51 113 62 1051 114 113
17THR005 52 72 20 1053 128 126
including 53 63 10 1145 125 130
17THR006 14 74 60 754 86 87
including 17 44 27 1176 125 121
17THR007 5 22 17 837 0 125
including 12 19 7 1049 0 105
128 154 26 1034 114 115
including 128 146 18 1321 144 143
17THR008 37 78 41 1319 122 11217THR009 29 65 36 957 94 92including 34 60 26 1150 111 102
100 105 5 833 129 12717THR010 51 57 6 729 49 5317THR011 30 83 53 1116 12 109
including 31 62 31 1423 155 135
17THR012 50 117 67 748 75 86
including 59 67 8 1084 103 126
and 75 102 27 1120 110 113
172 177 5 725 64 64
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 28
Down hole length and interception depth ndash 2017 holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THR013 19 73 54 888 54 5
including 19 29 10 2576 88 77
17THR014 12 45 33 749 81 74
including 25 33 8 1148 113 94
17THR015 40 48 8 995 89 8117THR016 66 115 49 1096 129 134
including 66 81 15 1184 142 139
and 89 114 25 1183 134 141
17THR017 54 112 58 1383 132 128
including 56 85 29 2042 183 158
17THR018 47 63 16 1124 151 14117THR019 42 59 17 1032 107 114
17THR020 29 49 20 1067 116 115
including 29 36 7 1352 135 126
17THR021 44 64 20 1204 131 12717THR022 101 138 37 1152 107 1217THR023 91 137 46 1271 139 133
including 91 97 6 1953 187 166
and 114 125 11 2707 311 265
17THR027 29 54 25 1176 126 118
including 30 47 17 1382 141 125
Down hole length and interception depth ndash historic holes
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
11PHR02 74 114 40 875 108 116
11PHR03 150 162 12 750 83 96
11PHR03 163 190 27 732 106 119
11PHR03 206 227 21 988 117 13
11PHR04 124 172 48 1049 128 129
11PHR05 197 219 22 1138 107 133
11PHR06 104 135 31 854 83 115
11PHR06 155 171 16 1315 12 122
11PHR07 96 147 51 941 95 99
11PHR08 103 115 12 1417 139 148
11PHR08 126 144 18 1048 126 142
12BER01 115 139 24 768 72 74
12BER02 18 25 7 1062 103 93
12BER02 113 123 10 907 85 86
12BER04 41 90 49 1191 114 127
12BER04 121 126 5 1241 9 112
12BER05 33 39 6 1109 79 92
12BER05 65 76 11 721 63 66
12BER06 131 169 38 844 83 128
12BER07 38 43 5 704 10 101
12BER09 33 92 59 841 9 116
12BER11 31 62 31 738 84 126
12BER11 92 159 67 1061 10 131
12BER11 173 193 20 737 67 83
12BER12 27 81 54 1430 181 189
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 29
Down hole length and interception depth ndash historic holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
12BER13 21 42 21 761 74 91
12BER13 65 75 10 1882 204 216
12BER14 28 55 27 1013 125 129
12BER16 25 100 75 1008 106 107
12BER17 92 99 7 739 6 63
12BER18 117 157 40 1017 112 114
12BER19 34 56 22 1151 104 108
12BER19 68 75 7 780 61 6
12BER20 21 46 25 731 69 75
13BED01 266 2915 255 872 85 78
16DM01 96 147 51 851 91 86
16DM02 127 172 45 1118 138 136
16DM03 104 111 7 838 103 9
16DM04 91 99 8 887 91 84
16DM05 30 103 73 793 82 9
16DM05 199 211 12 830 251 221
16DM06 28 84 56 1280 162 167
16DM06 138 146 8 722 78 112
16DM07 35 60 25 1232 111 111
16DM07 71 104 33 1224 133 134
16DM08 76 100 24 1026 11 12
16DM08 165 177 12 921 122 126
17THD01 34 123 89 982 94 87
17THD02 47 134 87 911 88 92
17THD03 40 635 235 894 116 108
17THD04 20 29 9 1033 86 8
17THD04 72 96 24 703 88 81
17THD05 44 60 16 993 98 85
17THD05 71 76 5 840 64 63
17THD06 39 85 46 1136 114 101
17THD07 15 128 113 879 81 88
17THD07 142 152 10 704 6 102
17THD07 199 204 5 706 49 65
17THR001 27 63 36 1075 106 104
17THR001 75 84 9 755 91 139
17THR002 37 43 6 711 69 82
17THR002 91 136 45 983 98 105
17THR003 4 59 55 937 93 94
17THR004 49 146 97 888 102 102
17THR005 52 72 20 1053 128 126
17THR006 14 74 60 754 86 87
17THR007 5 22 17 837 0 125
17THR007 128 154 26 1034 114 115
17THR008 37 78 41 1319 122 112
17THR009 29 65 36 957 94 92
17THR009 100 105 5 833 129 127
17THR010 51 57 6 729 49 53
17THR011 30 83 53 1116 12 109
17THR012 50 117 67 748 75 86
17THR012 172 177 5 725 64 64
17THR013 19 73 54 888 54 5
17THR014 12 45 33 749 81 74
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 30
Down hole length and interception depth ndash historic holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THR015 40 48 8 995 89 81
17THR016 66 115 49 1096 129 134
17THR017 54 112 58 1383 132 128
17THR018 47 63 16 1124 151 141
17THR019 42 59 17 1032 32 114
17THR020 29 49 20 1067 116 115
17THR021 44 64 20 1204 131 127
17THR022 101 138 37 1152 107 12
17THR023 91 137 46 1271 139 133
17THR027 29 54 25 1176 126 118
67TH01 12344 20001 7657 979 0 0
70BH01 3962 5334 1372 3323 31 0
70BH01 6431 8443 2012 1203 95 0
70BH02 7406 8686 128 704 75 0
70TH02 78 841 61 1666 175 154
70TH02 871 1021 15 1661 8 72
70TH03 777 1295 518 1016 129 132
80BGH05 39 49 10 752 0 0
80BGH06 18 6804 5004 969 0 0
80BGH08 44 7815 3415 939 0 0
80PYH01 75 17 95 725 0 0
80PYH02 341 4825 1415 1121 0 0
80PYH03 23 35 12 711 0 0
80PYH04 3975 55 1525 735 0 0
80PYH05 367 65 283 1160 118 0
80PYH06 54 62 8 905 0 0
80PYH07 67 794 124 1113 125 0
80PYH10 4845 1374 8895 831 86 0
80PYH11 346 465 119 916 8 0
80PYH11 572 9105 3385 1239 106 0
80PYH12 302 365 63 791 102 0
80PYH12 8515 908 565 857 146 0
80PYH14 2518 2734 216 1252 131 0
93MGM02 85 160 75 941 85 0
98TC01 20 47 27 744 91 126
98TC01 48 71 23 917 119 164
98TC03 34 45 11 1480 55 6
98TC03 68 79 11 1095 43 42
98TC04 84 94 10 966 39 4
98TC04 107 133 26 771 77 82
98TC05 24 62 38 754 64 7
98TC06 66 72 6 727 104 111
98TC06 76 101 25 767 101 106
98TC07 35 46 11 1546 165 171
98TC07 61 82 21 728 91 94
98TC09 32 39 7 716 49 174
98TC09 82 107 25 732 6 67
98TC10 101 125 24 732 79 8
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 31
Criteria JORC Code Explanation Commentary
Data aggregation methods
a In reporting Exploration Results weighting averaging techniques maximum andor minimum grade truncations (eg cutting of high grades) and cut-off grades are usually Material and should be stated
a Where aggregate intercepts incorporate short lengths of high grade results and longer lengths of low grade results the procedure used for such aggregation should be stated and some typical examples of such aggregations should be shown in detail
a The assumptions used for any reporting of metal equivalent values should be clearly stated
Drilling a Drill hole intercept grades are typically reported as down-hole
length-weighted averages with any non-recovered sample within the reported intervals treated as no grade The cut-off used for selecting significant intersections is selected to reflect the overall tenor of mineralisation in most cases 500ppm cobalt
a No top cuts have been applied when calculating average grades for reported significant intersections
a No metal equivalent values are reported
Relationship between mineralis- ation widths and intercept lengths
a These relationships are particularly important in the reporting of Exploration Results
a If the geometry of the mineralisation with respect to the drillhole angle is known its nature should be reported
a If it is not known and only the down hole lengths are reported there should be a clear statement to this effect (eg lsquodown hole length true width not knownrsquo)
a Drill holes at the Thackaringa project are typically angled at 50deg or 60deg and drilled perpendicular to the mineralised trend with drilling orientations adjusted along strike to accommodate folded geological sequences
a Mineralisation at the Big Hill and Railway prospects is steeply dipping and consequently mineralised intersections will be greater than true width At Pyrite Hill mineralisation is gently dipping and mineralised intersections will be close to true width
a There is insufficient geological knowledge to accurately estimate true widths and as such all drill intersections are reported as down hole lengths
Diagrams a Appropriate maps and sections (with scales) and tabulations of intercepts should be included for any significant discovery being reported These should include but not be limited to a plan view of drill hole collar locations and appropriate sectional views
a Appropriate maps and sections are presented in the accompa-nying ASX release
Balanced reporting
a Where comprehensive reporting of all exploration results is not practicable representative reporting of both low and high grades andor widths should be practiced to avoid misleading reporting of Exploration Results
a Only mineralised drill hole intersections regarded as highly anomalous and of economic interest are reported The proportion of each hole represented by the reported intervals can be ascertained from the sum of the reported intervals divided by the total drill hole depth
a All assay results for drill holes included in the various Mineral Resource estimates have been considered and comprise results not necessarily regarded as anomalous
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 32
Criteria JORC Code Explanation Commentary
Other substantive exploration data
a Other exploration data if meaningful and material should be reported including (but not limited to) geological obser-vations geophysical survey results geochemical survey results bulk samples ndash size and method of treatment metallurgical test results bulk density groun d- water geotechnical and rock characteristics potential deleterious or contaminating substances
a No further exploration data is deemed material to the results presented in this release
Further work a The nature and scale of planned further work (eg tests for lateral extensions or depth extensions or large-scale step-out drilling)
a Diagrams clearly highlighting the areas of possible extensions including the main geological interpretations and future drilling areas provided this information is not commercially sensitive
a The nature and scale of planned further work will be determined following the completion of revised Mineral Resource estimation for the Thackaringa deposits scheduled for May 2017
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 10
Figure 8 Plan view of Big HillFor
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 11
Figure 9 Big Hill X-section along plane of 17THR013For
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 12
Cobalt Blue BackgroundCobalt Blue (ldquoCOBrdquo) is an exploration company focussed on green energy technology and strategic development to upgrade the existing mineral resource at the Thackaringa Cobalt Project in New South Wales This strategic metal is in strong demand for new generation batteries particularly lithium-ion batteries now being widely used in clean energy systems
COB has entered into a farm-in joint venture agreement with Broken Hill Prospecting Limited (ldquoBPLrdquo) in which COB acquired an initial 51 interest in the Thackaringa Cobalt Project COB will undertake exploration and development programs at the Thackaring Cobalt Project and subject to the achievement of milestones will acquire 100 of the Thackaringa Cobalt Project
The Thackaringa Project 23 km west of Broken Hill and 400km by rail from Port Pirie consists of four granted tenements (EL6622 EL8143 ML86 and ML87) with total area of 63 km2 The main target for exploration is well known and contains documented large tonnage cobalt bearing pyrite deposits The project area is under-explored with the vast majority of historical exploration directed at or around the outcropping pyritic cobalt deposits at Pyrite Hill and Big Hill
Potential to extend the Mineral Resource at Pyrite Hill Big Hill Railway and the other prospects is high Numerous other prospects within COBrsquos tenement package are early stage and under-explored
Looking forward we would like our shareholders to keep in touch with COB updates and related news items which we will post on our website the ASX announcements platform as well as social media such as Facebook ( ) and LinkedIn ( ) Please donrsquot hesitate to join the lsquoCOB friendsrsquo on social media and also to join our newsletter mailing list at our website
Joe KaderavekChief Executive Officerjoekaderavekcobaltblueholdingscom(02) 9966 5629
Competent Person StatementThe information in this report that relates to exploration results Mineral Resources and Targets is based on information compiled by Mr Anthony Johnston BSc (Hons) who is a Member of the Australian Institute of Mining and Metallurgy and who is a non-executive director of Cobalt Blue Holdings Limited the Chief Executive Officer of Broken Hill Prospecting Limited and the Technical Manager of the Joint Venture Mr Johnston has sufficient experience which is relevant to the style of mineralisation and type of deposits under consideration and to the activity which he is undertaking to qualify as a Competent Person as defined in the 2004 amp 2012 Edition of the ldquoAustralasian Code for Reporting of Exploration Results Mineral Resources and Ore Reservesrdquo Mr Johnston consents to the inclusion in the announcement of the matters based on his information in the form and context that the information appears
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 13
Appendix ndash JORC Code 2012 Edition ndash Table 1 Section 1 ndash Sampling Techniques and Data(Criteria in this section apply to all succeeding sections)
Criteria JORC Code Explanation Commentary
Sampling techniques
a Nature and quality of sampling (eg cut channels random chips or specific specialised industry standard measurement tools appropriate to the minerals under investigation such as down-hole gamma sondes or handheld XRF instruments etc) These examples should not be taken as limiting the broad meaning of sampling
a Include reference to measures taken to ensure sample repre-sentivity and the appropriate calibration of any measurement tools or systems used
a Aspects of the determination of mineralisation that are Material to the Public Report
a In cases where lsquoindustry standardrsquo work has been done this would be relatively simple (eg lsquoreverse circulation drilling was used to obtain 1 m samples from which 3 kg was pulverised to produce a 30 g charge for fire assayrsquo) In other cases more explanation may be required such as where there is coarse gold that has inherent sampling problems Unusual commodities or mineralisation types (eg submarine nodules) may warrant disclosure of detailed information
Diamond Drilling (DD)Pre-1990a Diamond drilling was used to obtain core from which irregular
intervals reflecting visual mineralisation and geological logging were hand-split or sawn Samples were submitted for analysis using a mixed acid digestion and AAS methodology
Post-1990 a Diamond drilling (one drill hole) was used to obtain core from
which irregular intervals reflecting visual mineralisation and geological logging were sawn (quarter core for HQ) Samples were submitted for analysis using a mixed acid digestion and ICP-OES methodology
2016 Metallurgical Drillinga Eight HQ diameter diamond drill holes (DD) were drilled at
the Thackaringa project in late 2016 They will be used as metallurgical reference holes and to twin some of the previous reverse circulation percussion (RC) holes for QAQC and assay comparison between DD and RC There were two holes drilled at Pyrite Hill two at Big Hill and four at Railway
a Diamond drilling was used to obtain core from which regular (one-metre) intervals were sawn with
a one half core dispatched for analysis using a mixed acid digestion and ICP-AES methodology
a the other half was further sawn such that one quarter- core was sent for metallurgical test work and the other quarter-core retained for archival purposes
Historical Reverse Circulation Drilling a RC drilling was used to obtain a representative sample by means
of riffle splitting with samples submitted for analysis using the above-mentioned methodologies
a Pre-2000 drill samples were assayed for a small and variable suite of elements (sometimes only cobalt) The post-2000 drill samples (5095 samples) are all assayed by ICP-MS for a suite of 33 elements
2017 Diamond Drilling Program a This announcement summarises the results from approximately
23 of the 2017 diamond drilling program Fourteen HQ diameter diamond drill holes (DD) were assayed at the Thackaringa project They will be used as metallurgical reference holes and to twin some of the previous reverse circulation percussion (RC) holes for QAQC and assay comparison between DD and RC There were four holes drilled at Pyrite Hill two at Big Hill and 8 at Railway
a Diamond drilling (17THD01-03) was used to obtain core from which regular (one-metre) intervals were sawn with
a one half core dispatched for analysis using a mixed acid digestion and ICP-AES methodology
a the other half was retained for future metallurgical test work and archival purposes
a Diamond drilling (17THD04-14) was used to obtain core from which regular (one-metre) intervals were sawn with
a one quarter core dispatched for analysis using a mixed acid digestion and ICP-AES methodology
a the other three quarters was retained for future metallurgical test work and archival purposes
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 14
Criteria JORC Code Explanation Commentary
Sampling techniques (continued)
2017 RC drilling Program a This announcement summarises the results from approximately
23 of the 2017 RC drilling program Thirty eight (38) RC drill holes were drilled amp assayed at the Thackaringa project They will be used to infill the drill spacing of historic holes to allow a re-estimation of the existing Mineral Resource There were 12 holes drilled at Pyrite Hill three at Big Hill and 23 at Railway
a RC drilling was used to obtain a representative sample by means of riffle splitting with samples submitted for analysis using the above-mentioned methodologies
a The 2017 drill samples are all assayed by ICP-MS for a suite of 33 elements
Drilling techniques
a Drill type (eg core reverse circulation open-hole hammer rotary air blast auger Bangka sonic etc) and details (eg core diameter triple or standard tube depth of diamond tails face-sampling bit or other type whether core is oriented and if so by what method etc)
a The Thackaringa drilling database comprises a total of forty-eight (48) DD holes and eighty-one (81) RC drill holes Diamond drilling was predominantly completed with standard diameter conventional HQ and NQ utilising RC and percussion pre-collars to an average 25 metres (see Drill-hole Information for further details) Early (1960-1970) drill holes utilised HX ndash AX diameters dependent on drilling depth Reverse circulation drilling utilised standard drill-hole diameters (48rdquo-55rdquo) with a face sampling hammer
a During 2013 a single diamond drill hole (13BED01) was completed at the Railway deposit using a triple tube system with a HQ3 diameter
Year Drilling Metres
1967 1 diamond drill hole 3042
1970 4 diamond drill holes 4966
1980 18 diamond and 1 RC drill hole 171123
1993 2 diamond drill holes 250
1998 11 RC drill holes 109325
2011 11 RC drill holes 1811
2012 20 RC drill holes 287425
2013 1 diamond drill hole 3492
2016 8 diamond drill holes 14848
2017 14 diamond drill holes and 38 RC drill holes 6472
Total 48 diamond and 81 RC drill holes 1684653
a This ASX release describes assay results from seven (7) diamond drill holes and twenty-four (24) RC holes completed and assayed by April 2017 Commencement of that drilling program was reported to ASX by the company in April 2017
a Diamond drilling was completed using a triple tube system with a HQ3 diameter
a Holes were drilled at angles between 40 and 60 degrees from horizontal and the resulting core was oriented as part of the logging process
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 15
Criteria JORC Code Explanation Commentary
Drill sample recovery
a Method of recording and assessing core and chip sample recoveries and results assessed
a Measures taken to maximise sample recovery and ensure representative nature of the samples
a Whether a relationship exists between sample recovery and grade and whether sample bias may have occurred due to preferential lossgain of finecoarse material
Diamond Drilling
a Historical core recoveries were accurately quantified through measurement of actual core recovered versus drilled intervals
a Historical diamond drilling employed conventional drilling techniques while diamond drilling completed by Broken Hill Prospecting utilised a triple-tube system to maximise sample recovery
a Core recovery of 997 was achieved during completion of drill hole 13BED01
a Core recovery of 98 was achieved during the 2016 diamond drilling program
a Core recovery of 933 was achieved during the 2017 diamond drilling program
a No relationship between sample recovery and grade has been observed
Reverse Circulation Drilling
a Reverse circulation sample recoveries were visually estimated during drilling programs Where the estimated sample recovery was below 100 this was recorded in field logs by means of qualitative observation
a Reverse circulation drilling employed adequate air (using a compressor and booster) to maximise sample recovery
a No relationship between sample recovery and grade has been observed
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 16
Criteria JORC Code Explanation Commentary
Logging a Whether core and chip samples have been geologically and geotechnically logged to a level of detail to support appropriate Mineral Resource estimation mining studies and metallurgical studies
a Whether logging is qualitative or quantitative in nature Core (or costean channel etc) photography
a The total length and percentage of the relevant intersections logged
a A qualified geoscientist has logged all reported drill holes in their entirety This logging has been completed to a level of detail considered to accurately support Mineral Resource estimation and metallurgical studies The parameters logged include lithology alteration mineralisation and oxidation These parameters are both qualitative and quantitative in nature
a Diamond drilling completed in 2017 by BPL has been subject to geotechnical logging with parameters recorded including rock-quality designation (RQD) fracture frequency and hardness
a During 2013 a considerable amount of historical drilling was re-logged through review of available core stored at Broken Hill as well the re-interpretation of historical reports where core or percussion samples no longer exist A total of eight (8) diamond drill holes and sixteen (16) diamond drill holes with pre-collars were re-logged as detailed below
Hole ID Deposit Max Depth Hole TypePre-Collar Depth (m)
67TH01 Pyrite Hill 3042 DDH1 ndash
70TH02 Pyrite Hill 1486 DDH1 ndash
70TH03 Pyrite Hill 1414 DDH1 ndash
70BH01 Big Hill 1027 DDH1 ndash
70BH02 Big Hill 1039 DDH1 ndash
80PYH13 Pyrite Hill 77 DDH1 ndash
80PYH14 Pyrite Hill 3003 DDH1 ndash
80BGH09 Big Hill 1005 DDH1 ndash
80PYH01 Pyrite Hill 2453 PDDH2 6
80PYH02 Pyrite Hill 513 PDDH2 3358
80PYH04 Pyrite Hill 55 PDDH2 387
80PYH05 Pyrite Hill 936 PDDH2 18
80PYH06 Pyrite Hill 855 PDDH2 18
80PYH07 Pyrite Hill 945 PDDH2 12
80PYH08 Pyrite Hill 110 PDDH2 8
80PYH09 Pyrite Hill 1005 PDDH2 8
80PYH10 Pyrite Hill 1453 PDDH2 255
80PYH11 Pyrite Hill 1031 PDDH2 18
80PYH12 Pyrite Hill 1095 PDDH2 42
80BGH05 Big Hill 5486 RCDDH3 455
80BGH06 Big Hill 6804 RCDDH3 58
80BGH08 Big Hill 797 RCDDH3 699
93MGM01 Pyrite Hill 70 RDDH4 24
93MGM02 Pyrite Hill 180 RDDH4 48
1 Diamond drill hole2 Diamond drill hole with percussion pre-collar3 Diamond drill hole with reverse circulation pre-collar4 Diamond drill hole with rotary air blast pre-collar
a Litho-geochemistry has been used to verify geological logging where available for drilling completed by Broken Hill Prospecting post 2010
a Representative reference trays of chips from reverse circulation drilling completed post 2010 have been retained by Broken Hill Prospecting
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 17
Criteria JORC Code Explanation Commentary
Sub-sampling techniques and sample preparation
a If core whether cut or sawn and whether quarter half or all core taken
a If non-core whether riffled tube sampled rotary split etc and whether sampled wet or dry
a For all sample types the nature quality and appropriateness of the sample preparation technique
a Quality control procedures adopted for all sub-sampling stages to maximise representivity of samples
a Measures taken to ensure that the sampling is representative of the in situ material collected including for instance results for field duplicatesecond-half sampling
a Whether sample sizes are appropriate to the grain size of the material being sampled
Diamond Drilling (DD)Pre-1990a Core samples were hand-split or sawn with re-logging of available
historical core (see Logging) indicating a 7030 (retainedassayed) split was typical The variation of sample ratios noted are consid-ered consistent with the sub-sampling technique (hand-splitting)
a No second half samples were submitted for analysis a It is considered water used for core cutting is unprocessed and
unlikely to have introduced sample contamination a Procedures relating to the definition of the line of cutting or splitting
are not available It is expected that lsquostandard industry practicersquo for the period was applied to maximize sample representivity
Post-1990 a NQ drilling core was sawn with half core submitted for assay a HQ drilling core was sawn with quarter core submitted for assay a No second half samples were submitted for analysis a It is considered water used for core cutting is unprocessed and
unlikely to have introduced sample contamination a Procedures relating to the definition of the line of cutting or splitting
are not available It is expected that lsquostandard industry practicersquo for the period was applied to maximise sample representivity
2016 Metallurgical Drilling a All HQ drill core was sawn into halves with each half then re-sawn
to provide 4 lengths of quarter core for each interval a One half core was submitted for assay a One quarter core was submitted for metallurgical test work a One quarter core was retained for archive a It is considered that the water used for core cutting is most
unlikely to have introduced sample contamination a Sample sawing and processing for test work were undertaken
according to lsquostandard industry practicersquo to maximise sample representivity
2017 Diamond Drilling a All HQ drill core was sawn into halves with each half then re-sawn to
provide 4 lengths of quarter core for each interval
a One quarter ndash one half core was submitted for assay
a One quarter ndash three quarter core was retained for archive
a It is considered that the water used for core cutting is most unlikely to have introduced sample contamination
a Sample sawing and processing for test work were undertaken according to lsquostandard industry practicersquo to maximise sample representivity
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 18
Criteria JORC Code Explanation Commentary
Sub-sampling techniques and sample preparation (continued)
Historical Reverse Circulation Drilling a Sub-sampling of reverse circulationpercussion chips was
achieved using a cyclone with cone or riffle splitter a During drilling operations the sample cyclone and splitter were
regularly cleaned to prevent down hole sample contamination a Dry sampling was achieved with the use of adequate air using a
compressor and booster where groundwater was encountered a During reverse circulation drilling completed by Broken Hill
Prospecting duplicate samples were collected at the time of drilling These were obtained by spearing the bulk material held in the PVC sacks using a spear made of 40mm diameter PVC pipe three samples were speared through the full depth of the bulk material and these were combined to form one sample
a The Thackaringa drilling database includes a total of 139 field duplicates collected during reverse circulation drilling This reflects a ratio of approximately one field duplicate in every 32 samples (31) for drill holes where duplicates were collected (31 drill holes for 4469 metres) and an overall ratio of one field duplicate in every 42 samples (24) for all reverse circulation drill holes (43 drill holes for 58015 metres)
a Statistical analysis of field duplicates collected during drilling completed by Broken Hill Prospecting (119 duplicates representing 86 of all field duplicates) considered 18 elements of which only chromium lanthanum and titanium show some bias in the duplicate samples For cobalt the confidence limits were evenly placed either side of zero and the duplicates are deemed to be representative of the original samples
2017 Reverse Circulation Drilling a Sub-sampling of reverse circulationpercussion chips was achieved
using a riffle splitter
a During drilling operations the splitter was regularly cleaned to prevent down hole sample contamination
a Dry sampling was achieved with the use of adequate air using a compressor and booster where groundwater was encountered
a During reverse circulation drilling completed by Broken Hill Prospecting duplicate samples were collected at the time of drilling These were obtained by riffle splitting the remnant bulk sample following collection of the primary split
a Field duplicate samples were collected regularly during drilling (for every 18th sample on average)
a Assay results received to date include analysis of 120 field duplicate pairs from 24 RC drill holes
a A measure of the average precision of the sampling sample preparation and assaying methods given by the mean per cent difference (MPD) assay values of the duplicate pairs is summarised below Overall the sampling and assay precision for Co Fe and S at economically significant grades is regarded as reasonable
RC Field Duplicate Pairs
Co Cut-Off Count Co MPD S MPD Fe MPD
All 120 13 16 9
200ppm 52 13 11 10
500ppm 34 12 9 9
1000ppm 20 8 7 7
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 19
Criteria JORC Code Explanation Commentary
Quality of assay data and laboratory tests
a The nature quality and appropriateness of the assaying and laboratory procedures used and whether the technique is considered partial or total
a For geophysical tools spectrometers handheld XRF instruments etc the parameters used in determining the analysis including instrument make and model reading times calibrations factors applied and their derivation etc
a Nature of quality control proce-dures adopted (eg standards blanks duplicates external laboratory checks) and whether acceptable levels of accuracy (ie lack of bias) and precision have been established
a The nature and quality of all assaying and laboratory procedures employed for samples obtained through drilling (diamond and reverse circulation) are considered lsquoindustry standardrsquo for the respective periods
a The assay techniques employed for drilling (diamond and reverse circulation) include mixed acid digestion with ICP-OES and AAS finishes These methods are considered appropriate for the targeted mineralisation and regarded as a lsquonear totalrsquo digestion technique with resistive phases not expected to affect cobalt analyses
a All samples have been processed at independent commercial laboratories including AMDEL Australian Laboratory Services (ALS) Analabs and Genalysis
a All samples from drilling completed by Broken Hill Prospecting during 2011-2012 were assayed at ALS in Orange New South Wales All samples from drilling completed by Broken Hill Prospecting during 2016-2017 were assayed at ALS Adelaide South Australia ALS is a NATA Accredited Laboratory and qualifies for JASANZ ISO90012008 quality systems ALS maintains robust internal QAQC procedures (including analysis of standards repeats and blanks)
a To monitor the accuracy of assay results from the 2017 Thackaringa drilling CRM standards were included in the assay sample stream every 24 samples (on average) for RC chips and every 30 samples for diamond core The CRM samples were purchased from Ore Research amp Exploration Pty Ltd and the results are summarised below
Cobalt Sulphur Iron
OREAS Standard Count plusmn1SD plusmn2SD plusmn3SD plusmn3SD+ plusmn1SD plusmn2SD plusmn3SD plusmn3SD+ plusmn1SD plusmn2SD plusmn3SD plusmn3SD+
160 Low S Blank (28ppm Co) 12 10 ndash ndash 2 7 ndash ndash 5 6 2 2 2
162 Medium Grade (631ppm Co) 53 37 12 3 ndash 32 18 3 ndash 14 12 13 14
163 Low Grade (230ppm Co) 40 30 8 2 ndash 7 25 7 1 2 3 2 33
165 High Grade (2445ppm Co) 13 11 2 ndash ndash 7 5 1 ndash 1 5 2 5
166 High Grade (1970ppm Co) 35 26 8 ndash 1 27 6 ndash 2 9 5 5 16
153 114 30 5 3 80 54 11 8 32 27 24 70
75 20 3 2 52 35 7 5 21 18 16 46
Cobalt CRM Standards
Internal COB assay QAQC protocols cobalt performed well with 95 standard analyses falling within two standard deviations of the certified value and 75 within one SD No systematic out-of-specification trends were identified and there was no discernible tendency for a particular Co standard to preferentially assay either higher or lower than the certified Co concentration
Cobalt Blanks
A number of blanks were also submitted with the RC chip and diamond core samples mdash the OREAS160 CRM is essentially a low-sulphide blank with respect to cobalt (28ppm) and the results of assay of this standard are summarised in Table 1 In addition five quartz sand blanks were submitted bracketing very pyrite-rich intervals in diamond drill holes 17THD06 and 17THD07 Overall the quartz sand blanks returned a maximum of 69ppm Co 004 S and 065 Fe which are regarded as similar to background values and any contamination during sample preparation at the assay laboratory is likely to be immaterial to the final results
Based on the assay of standards and blanks with 95 of the Co results falling within two standard deviations of the certified value it is concluded that the assay results for Co are likely to be representative for the material submitted with no additional source of inaccuracy or bias identified
Sulphur CRM Standards
sulphur was reasonably well-performed with 87 of the total 153 standard analyses falling within two standard deviations of the certified value and 95 within 3SD
Iron CRM Standards
Iron analysis of standards showed poor accuracy with a tendency to assay low mdash 46 of the assays fall outside of 3 SD typically but not exclusively lower than the certified value
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 20
Criteria JORC Code Explanation Commentary
Verification of sampling and assaying
a The verification of significant intersections by either inde-pendent or alternative company personnel
a The use of twinned holes
a Documentation of primary data data entry procedures data verification data storage (physical and electronic) protocols
a Discuss any adjustment to assay data
a Historical drilling intersections were internally verified by personnel employed by previous explorers including CRAE Pty Limited Central Austin Pty Limited and Hunter Resources Broken Hill Prospecting has completed a systematic review of the related data
a The Thackaringa drilling database exists in electronic form as a Microsoft Access database Information related to individual drill holes is stored in digital files as extracted from historical reports (typically including location plan section logs photos surveys assays and petrology)
a Historical drilling data available in electronic form has been re-formatted and imported into the drilling database
a Quantitative historical drilling data including assays have been captured electronically during systematic data compilation and validation completed by Broken Hill Prospecting
a Samples returning assays below detection limits are assigned half detection limit values in the database
a All significant intersections are verified by the Companyrsquos Exploration Manager and independent geological consultant
Location of data points
a Accuracy and quality of surveys used to locate drill holes (collar and down-hole surveys) trenches mine workings and other locations used in Mineral Resource estimation
a Specification of the grid system used
a Quality and adequacy of topographic control
a Historical drill collars have been relocated and surveyed using a differential GPS (DGPS) In the instances where no collar could be located the position has been derived from georeferenced historical plans
a During systematic data validation completed in 2016 three drill holes at Big Hill were found to be incorrectly located One collar was located and surveyed by GPS and two were digitised from georeferenced historical plans (reported to the nearest metre) as the collars had been destroyed These corrections were captured in the Big Hill Mineral Resource estimate
a Down hole surveys using digital cameras were completed on all post 2000 drilling Down hole surveys for some earlier drilling were estimated from hole trace and section data where raw survey data was not reported
a All 2017 Thackaringa drill hole collars were located and surveyed with DGPS by an independent surveyor with reported accuracy of plusmn005m in horizontal and vertical measurement
a Downhole surveys using digital cameras were completed on all 2017 drill-holes
a All data is recorded in the GDA94 datum UTM Zone 54 (MGA54)
a 3D validation of drilling data has been completed by independent geological consultants to support detailed geological modelling in Microminetrade software
a The quality of topographic control is deemed adequate in consideration of the results presented in this release
Data spacing and distribution
a Data spacing for reporting of Exploration Results
a Whether the data spacing and distribution is sufficient to estab-lish the degree of geological and grade continuity appropriate for the Mineral Resource and Ore Reserve estimation procedure(s) and classifications applied
a Whether sample compositing has been applied
a The data density of existing drill holes at Thackaringa has been materially increased by the 2017 drilling program which was undertaken primarily to undertake infill drilling
a Detailed geological mapping supported by drill-hole data of sufficient spacing and distribution to establish a 3D geological model
a The level of geological and grade continuity is appropriate for the Mineral Resource estimation methodologies used and the classifications applied (being wholly Inferred Mineral Resources) Note that a recalculation of the Mineral Resource using 2017 drilling and assay data will commence in mid-2017
a No sample compositing has been applied to reported intersections
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 21
Criteria JORC Code Explanation Commentary
Orientation of data in relation to geological structure
a Whether the orientation of sampling achieves unbiased sampling of possible structures and the extent to which this is known considering the deposit type
a If the relationship between the drilling orientation and the orientation of key mineralised structures is considered to have introduced a sampling bias this should be assessed and reported if material
a The 2017 drill holes at the Thackaringa project were typically angled at -500 or -600 to the horizontal and drilled perpendicular to the mineralised trend with drilling orientations adjusted along strike to accommodate folded geological sequences
a Mineralisation at the Big Hill and Railway prospects is steeply dipping and consequently mineralised intersections will be greater than true width At Pyrite Hill mineralisation is gently dipping and mineralised intersections will be close to true width
a The drilling orientation is not considered to have introduced a sampling bias on assessment of the current geological interpretation
Sample security
a The measures taken to ensure sample security
a Sample security procedures are considered to be lsquoindustry standardrsquo for the respective periods
a Following recent drilling completed by BPL samples were trucked by an independent courier directly from Broken Hill to ALS Adelaide
a BPL consider that risks associated with sample security are limited given the nature of the targeted mineralisation
Audits or reviews
a The results of any audits or reviews of sampling techniques and data
a In late 2016 an independent validation of the Thackaringa drilling database was completed
a The data validation process consisted of systematic review of drilling data (collars assays and surveys) for identification of transcription errors
a Following review historical drill hole locations were also validated against georeferenced historical maps to confirm their location
a Three (3) drill holes at Big Hill were found to be incorrectly located One collar was located and surveyed by GPS and two were digitised from georeferenced historical plans (reported to the nearest metre) as the collars had been destroyed These corrections were captured in the Big Hill Mineral Resource estimate
a Total depths for all holes were checked against original reports
a Final 3D validation of drilling data has been completed by independent geological consultants to support detailed geological modelling in Microminetrade software
a Audits and reviews of QAQC results and procedures are further described in preceding sections of this table including Quality of assay data and laboratory tests Sub-sampling techniques and sample preparation and Logging
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 22
Section 2 Reporting of Exploration Results(Criteria listed in the preceding section also apply to this section)
Criteria JORC Code Explanation Commentary
Mineral tenement and land tenure status
a Type reference namenumber location and ownership including agreements or material issues with third parties such as joint ventures partnerships overriding royalties native title interests historical sites wilderness or national park and environmental settings
a The security of the tenure held at the time of reporting along with any known impediments to obtaining a licence to operate in the area
a The Thackaringa Cobalt project is located approximately 25 kilometres west-southwest of Broken Hill and comprises four tenements with a total area of 63 km2
Tenement
Registered amp Beneficial Holder Minerals Grant Date Expiry Date
Annual Expenditure
Commit-ment
EL6622 Broken Hill Prospecting Limited (BPL)
Group 1 30082006 29082017 $47000
EL 8143 BPL Group 1 26072013 26072017 $14000
ML86 BPL Cobalt iron nickel platinum sulphur
05111975 04112017 $75000
ML87 BPL Cobalt iron nickel platinum sulphur
05111975 04112017 $75000
a The project tenure is subject to a Farm-In agreement between Cobalt Blue Holdings Limited (COB) and Broken Hill Prospecting Limited (BPL) The nature of this agreement is detailed in the COB Replacement Prospectus (as released 4 January 2017)
a The nearest residence (Thackaringa Station) is located approxi-mately three kilometres west of EL6622
a EL6622 is intersected by the Transcontinental Railway the Barrier Highway is located the north of the licence boundaries
a The majority of the project tenure is covered by Western Lands Lease which is considered to extinguish native title interest However Native Title Determination NC9732 (Barkandji Traditional Owners 8) is current over the area and may be relevant to Crown Land parcels (eg public roads) within the project area
a The project tenure is more than 90 kilometres from the nearest National Park and or Wilderness Area (Kinchega National Park) and approximately 20 kilometres south of the nearest Water Supply Reserve (Umberumberka Reservoir Water Supply Reserve)
a The Company is not aware of any impediments to obtaining a licence to operate in the area
Exploration done by other parties
a Acknowledgment and appraisal of exploration by other parties
a A detailed and complete record of all exploration activities undertaken prior to the BPL 2016 drilling program is appended to the JORC Table 1 which forms part of the Cobalt Blue Prospectus Document available on the COB website
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 23
Criteria JORC Code Explanation Commentary
Geology a Deposit type geological setting and style of mineralisation
Regional Geological Setting a The Thackaringa project is located in a deformed and metamor-
phosed Proterozoic supracrustal succession named the Willyama Supergroup which crops out as several inliers in western New South Wales including the Broken Hill Block (Willis et al 1982)
a Exploration by BPL Limited has been focused on the discovery of cobaltiferous pyrite deposits and Broken Hill type base-metal mineralisation both of which are known from historical exploration in the district
a The project area covers portions of the Broken Hill and Thackaringa group successions which host the majority of mineralisation in the region including the Broken Hill base-metal deposit The Sundown Group suite is also present The extensive sequence of quartz-albite-plagioclase rock that hosts the cobaltiferous pyrite mineralisation is interpreted as belonging to the Himalaya Formation which is stratigraphically at the top of the Thackaringa Group
Local Geological Setting a The oldest rocks in the region belong to the Curnamona Craton
which outcrops on the Broken Hill and Euriowie blocks a The overlying Proterozoic rocks have been broadly subdivided
into three major groupings of which the oldest groups are the highly deformed metasediments and igneous derived rocks of the Thackaringa and Broken Hill groups They comprise a major part of the Willyama Supergroup and host the giant Broken Hill massive Pb-Zn-Ag sulphide ore body EL6622 is within the Broken Hill block of the Curnamona Craton
Mineralisation Style a The Thackaringa Mineral deposits (Pyrite Hill Big Hill and Railway)
are characterised by large tonnage cobaltiferous-pyrite minerali-sation hosted within siliceous albitic gneisses and schists of the Himalaya Formation
a Cobalt mineralisation exists within stratabound pyritic horizons where cobalt is present within the pyrite lattice Mineralogical studies have indicated the majority of cobalt (~85) is found in solid solution with primary pyrite (Henley 1998)
a A strong correlation between pyrite content and cobalt grade is observed
a The regional geological setting indicates additional mineralisation targets including
a Stratiform Broken Hill Type (BHT) Copper-Lead-Zinc-Silver deposits
a Copper-rich BHT deposits a Stratiform to stratabound Copper-Cobalt-Gold deposits a Epigenetic Gold and Base metal deposits
Drill hole Information
a A summary of all information mat- erial to the understanding of the exploration results including a tab- ulation of the following information for all Material drill holes
a easting and northing of the drill hole collar
a elevation or RL (Reduced Level ndash elevation above sea level in metres) of the drill hole collar
a dip and azimuth of the hole
a down hole length and interception depth
a See drill holle summaries below
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 24
Drill hole summaries
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
17THD01 Pyrite Hill 1242 MGA54 518382 6449551 28906 -40 222 DDH1
17THD02 Pyrite Hill 1497 MGA54 518475 6449445 29054 -40 258 DDH1
17THD03 Pyrite Hill 785 MGA54 518370 6449190 30328 -40 2851 DDH1
17THD04 Big Hill 1198 MGA54 521078 6449589 27841 -45 1551 DDH1
17THD05 Big Hill 995 MGA54 521669 6449889 2785 -40 131 DDH1
17THD06 Railway 1655 MGA54 521970 6450705 2872 -45 128 DDH1
17THD07 Railway 2746 MGA54 522569 6451282 27067 -45 1565 DDH1
17THD08 Railway 1325 MGA54 522784 6451280 268881 -45 326 DDH1
17THD09 Railway 1205 MGA54 522905 6451511 278471 -40 1525 DDH1
17THD10 Railway 842 MGA54 522992 6451569 279779 -45 130 DDH1
17THD11 Railway 1115 MGA54 523109 6451682 280847 -40 1605 DDH1
17THD12 Railway 1265 MGA54 522796 6451419 272936 -40 14075 DDH1
17THD13 Railway 1055 MGA54 522836 6451456 276747 -40 1385 DDH1
17THD14 Pyrite Hill 99 MGA54 518375 6449089 29425 -60 285 DDH1
17THR001 Railway 156 MGA54 522615 6451277 267561 -60 120 RC5
17THR002 Railway 160 MGA54 522573 6451299 268511 -60 120 RC5
17THR003 Railway 96 MGA54 522124 6450868 27739 -60 130 RC5
17THR004 Railway 150 MGA54 522387 6451319 271453 -60 120 RC5
17THR005 Railway 72 MGA54 522024 6450783 282154 -60 120 RC5
17THR006 Railway 114 MGA54 522049 6450780 28401 -58 125 RC5
17THR007 Railway 180 MGA54 521965 6450699 286585 -59 125 RC5
17THR008 Railway 132 MGA54 521917 6450562 291682 -56 105 RC5
17THR009 Railway 120 MGA54 521906 6450496 292751 -58 105 RC5
17THR010 Railway 72 MGA54 521959 6450398 286445 -56 285 RC5
17THR011 Railway 126 MGA54 522302 6451169 276812 -56 120 RC5
17THR012 Railway 180 MGA54 522440 6451304 274931 -58 173 RC5
17THR013 Big Hill 102 MGA54 521750 6449942 28489 -60 1305 RC5
17THR014 Big Hill 104 MGA54 521628 6449796 277545 -53 130 RC5
17THR015 Big Hill 108 MGA54 521793 6449918 284847 -58 310 RC5
17THR016 Pyrite Hill 138 MGA54 518446 6449209 290391 -57 283 RC5
17THR017 Pyrite Hill 120 MGA54 518449 6449263 293147 -56 2815 RC5
17THR018 Pyrite Hill 78 MGA54 518027 6449806 289567 -60 222 RC5
17THR019 Pyrite Hill 72 MGA54 518105 6449754 287701 -55 222 RC5
17THR020 Pyrite Hill 66 MGA54 518166 6449695 288685 -60 222 RC5
17THR021 Pyrite Hill 78 MGA54 518183 6449717 286007 -60 222 RC5
17THR022 Pyrite Hill 156 MGA54 518510 6449306 28682 -55 281 RC5
17THR023 Pyrite Hill 150 MGA54 518506 6449377 289481 -57 2645 RC5
17THR024 Pyrite Hill 150 MGA54 518457 6449498 288137 -595 2285 RC5
17THR025 Pyrite Hill 114 MGA54 518311 6449609 287463 -60 222 RC5
17THR026 Pyrite Hill 114 MGA54 518268 6449681 284164 -60 222 RC5
17THR027 Pyrite Hill 72 MGA54 518243 6449646 287176 -60 222 RC5
17THR028 Railway 150 MGA54 522457 6451167 300659 -60 350 RC5
17THR029 Railway 162 MGA54 522482 6451084 295964 -60 175 RC5
17THR030 Railway 138 MGA54 522783 6451423 270814 -55 140 RC5
17THR031 Railway 120 MGA54 522945 6451566 27619 -55 145 RC5
17THR032 Railway 132 MGA54 522819 6451473 273712 -53 140 RC5
17THR033 Railway 120 MGA54 522501 6451315 26963 -60 175 RC5
17THR034 Railway 132 MGA54 522321 6451214 275947 -55 127 RC5
17THR035 Railway 156 MGA54 522259 6451120 275749 -552 130 RC5
17THR036 Railway 92 MGA54 522186 6450998 275339 -612 130 RC5
17THR037 Railway 126 MGA54 522148 6450941 274202 -55 126 RC5
17THR038 Railway 168 MGA54 521927 6450619 289555 -55 108 RC5
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 25
Historic down-hole information
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
67TH01 Pyrite Hill 3042 MGA94_54 518564805 644946003 280643 -55 2606 DDH1
70TH02 Pyrite Hill 1486 MGA94_54 51827242 644968054 28408 -61 2186 DDH1
70TH03 Pyrite Hill 1414 MGA94_54 51844985 644921188 28981 -62 2836 DDH1
70BH01 Big Hill 1027 MGA94_54 52085056 64493085 28456 -47 3186 DDH1
70BH02 Big Hill 1039 MGA94_54 52078612 64492644 2801 -50 3186 DDH1
80PYH13 Pyrite Hill 77 MGA94_54 5183582 64490377 29035 -50 2807 DDH1
80PYH14 Pyrite Hill 3003 MGA94_54 51866118 644928762 27796 -60 2807 DDH1
80PYH03 Pyrite Hill 35 MGA94_54 5182515 64495699 2994 -60 2207 PDDH2 2280BGH09 Big Hill 1005 MGA94_54 52065743 644929252 27280 -50 1447 DDH1
80PYH01 Pyrite Hill 2453 MGA94_54 5182462 64495657 3011 -60 2027 PDDH2 680PYH02 Pyrite Hill 513 MGA94_54 5182607 64495742 2976 -60 2207 PDDH2 335880PYH04 Pyrite Hill 55 MGA94_54 51836655 644923174 30834 -60 2957 PDDH2 38780PYH05 Pyrite Hill 936 MGA94_54 51822697 644967819 28518 -49 2227 PDDH2 1880PYH06 Pyrite Hill 855 MGA94_54 51816348 64497573 28373 -544 2227 PDDH2 1880PYH07 Pyrite Hill 945 MGA94_54 51808406 644981836 28516 -55 2227 PDDH2 1280PYH08 Pyrite Hill 110 MGA94_54 51800954 644988543 28614 -60 2227 PDDH2 880PYH09 Pyrite Hill 1005 MGA94_54 5179174 644993176 28655 -485 2227 PDDH2 880PYH10 Pyrite Hill 1453 MGA94_54 51839296 644956596 28553 -50 2227 PDDH2 25580PYH11 Pyrite Hill 1031 MGA94_54 51844096 644932952 29725 -50 2807 PDDH2 1880PYH12 Pyrite Hill 1095 MGA94_54 51840728 644913731 29263 -50 2807 PDDH2 4280BGH05 Big Hill 5486 MGA94_54 52095535 644953441 28893 -60 1637 RCDDH3 45598TC01 Railway 100 MGA94_54 52275006 645133973 26727 -60 1589 RC5
98TC02 Railway 100 MGA94_54 52239241 645138683 26678 -60 1409 RC5
98TC03 Big Hill 84 MGA94_54 52081645 644936939 31305 -60 1359 RC5
98TC04 Big Hill 13825 MGA94_54 52086005 644945085 30409 -60 1409 RC5
98TC05 Big Hill 70 MGA94_54 520728 644932807 28863 -50 1229 RC5
98TC06 Big Hill 108 MGA94_54 520715 6449343 28513 -60 1259 RC5
98TC07 Big Hill 120 MGA94_54 52078597 644938821 29922 -50 1339 RC5
98TC08 Big Hill 90 MGA94_54 52080195 644947781 29101 -60 1509 RC5
98TC09 Big Hill 114 MGA94_54 52082221 644946079 29625 -60 1339 RC5
98TC10 Big Hill 134 MGA94_54 521018 6449576 2815 -50 1729 RC5
98TC11 Railway 35 MGA94_54 5224112 645137396 26701 -60 1329 RC5
80BGH06 Big Hill 6804 MGA94_54 520880 6449472 299 -60 1707 RCDDH3 5880BGH08 Big Hill 797 MGA94_54 52076879 644939093 29629 -60 1267 RCDDH3 69980BGH07 Big Hill 23 MGA94_54 52113656 6449599 27411 -60 1777 RC5
93MGM01 Pyrite Hill 70 MGA94_54 51818544 644971377 28628 -60 2228 RDDH4 2493MGM02 Pyrite Hill 180 MGA94_54 51851545 644945467 28479 -60 2588 RDDH4 4811PHR01 Pyrite Hill 150 MGA94_54 51843547 644907276 28534 -60 27906 RC5
11PHR02 Pyrite Hill 198 MGA94_54 51849992 644915931 28379 -60 27906 RC5
11PHR03 Pyrite Hill 240 MGA94_54 5185603 644918961 28026 -60 27906 RC5
11PHR04 Pyrite Hill 186 MGA94_54 51852863 6449257 28403 -60 27906 RC5
11PHR05 Pyrite Hill 234 MGA94_54 51858425 644939762 28022 -60 25906 RC5
11PHR06 Pyrite Hill 180 MGA94_54 5184909 644952259 28402 -60 23406 RC5
11PHR07 Pyrite Hill 174 MGA94_54 51841347 64495929 28286 -60 21906 RC5
11PHR08 Pyrite Hill 180 MGA94_54 51834274 644965585 28288 -60 21806 RC5
11PSR01 Pyrite Hill 59 MGA94_54 51874273 6448864 26838 -60 25806 RC5
11PSR02 Pyrite Hill 132 MGA94_54 51871938 644896001 27041 -60 25506 RC5
11PSR03 Pyrite Hill 78 MGA94_54 51868699 644905535 27279 -60 25506 RC5
12BER01 Railway 157 MGA94_54 52166731 644989323 27769 -60 141 RC5
12BER02 Railway 132 MGA94_54 52121267 644969067 27353 -60 162 RC5
12BER03 Railway 151 MGA94_54 52187901 645043547 28859 -60 102 RC5
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 26
Historic down-hole information (continued)
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
12BER04 Railway 148 MGA94_54 52235392 645126835 27435 -60 131 RC5
12BER05 Railway 145 MGA94_54 52243947 645116784 29973 -60 124 RC5
12BER06 Railway 169 MGA94_54 52248137 645109135 29595 -60 118 RC5
12BER07 Railway 115 MGA94_54 52232372 645074875 27791 -60 144 RC5
12BER08 Railway 193 MGA94_54 52222079 64508118 27316 -60 129 RC5
12BER09 Railway 13975 MGA94_54 52210125 645088144 27591 -60 129 RC5
12BER10 Railway 151 MGA94_54 52195345 645071618 28449 -60 129 RC5
12BER11 Railway 193 MGA94_54 52273722 645137661 26583 -60 153 RC5
12BER12 Railway 111 MGA94_54 52290973 645151676 27736 -60 153 RC5
12BER13 Railway 205 MGA94_54 52288381 645155754 27103 -60 156 RC5
12BER14 Railway 151 MGA94_54 52312483 645163707 28836 -60 152 RC5
12BER15 Railway 109 MGA94_54 5233113 64518417 28395 -60 154 RC5
12BER16 Railway 115 MGA94_54 52299408 645159199 27595 -60 156 RC5
12BER17 Railway 1155 MGA94_54 5225165 645131494 2691 -60 153 RC5
12BER18 Railway 157 MGA94_54 52233275 645128131 27229 -60 129 RC5
12BER19 Railway 97 MGA94_54 52224055 645106715 27616 -60 135 RC5
12BER20 Railway 120 MGA94_54 52129169 644973363 27695 -60 165 RC5
13BED01 Railway 3492 MGA94_54 52248021 645109243 29601 -60 3007 DDH1
16DM01 Pyrite Hill 1616 MGA94_54 51841138 644959389 28269 -60 2155 DDH1
16DM02 Pyrite Hill 1834 MGA94_54 51852662 644926158 28418 -60 2850 DDH1
16DM03 Big Hill 1265 MGA94_54 5210371 644956749 28301 -60 1585 DDH1
16DM04 Big Hill 1054 MGA94_54 52081474 64494644 29618 -55 1285 DDH1
16DM05 Railway 2465 MGA94_54 5221037 645088187 27662 -60 1285 DDH1
16DM06 Railway 1604 MGA94_54 52291157 645151913 2785 -60 1525 DDH1
16DM07 Railway 2425 MGA94_54 52299526 645159826 27636 -60 1561 DDH1
16DM08 Railway 2585 MGA94_54 52235145 645127307 27385 -60 1309 DDH1
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 27
Down hole length and interception depth ndash 2017 holes
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THD01 34 123 89 982 94 87
including 35 41 6 1143 119 106
and 50 55 5 1311 131 115
and 81 122 41 1366 118 11
17THD02 47 134 87 911 88 92
including 48 77 29 1238 111 114
and 116 134 18 1199 110 111
17THD03 40 635 235 894 116 108
including 49 63 14 1076 143 124
17THD04 20 29 9 1033 86 872 96 24 703 88 81
17THD05 44 60 16 993 98 85
including 44 56 12 1094 109 94
71 76 5 840 64 6317THD06 39 85 46 1136 114 101
including 40 70 30 1227 122 104
and 76 85 9 1148 107 100
17THD07 15 128 113 879 81 88
including 47 55 8 1048 117 103
and 61 102 41 1452 125 123
142 152 10 704 6 102199 204 5 706 49 65
17THR001 27 63 36 1075 106 104
including 37 63 26 1280 119 115
75 84 9 755 91 139
17THR002 37 43 6 711 69 82
91 136 45 983 98 105
including 102 136 34 1190 117 118
17THR003 4 59 55 937 93 94
including 10 46 36 1212 116 110
17THR004 49 146 97 888 102 102
including 51 113 62 1051 114 113
17THR005 52 72 20 1053 128 126
including 53 63 10 1145 125 130
17THR006 14 74 60 754 86 87
including 17 44 27 1176 125 121
17THR007 5 22 17 837 0 125
including 12 19 7 1049 0 105
128 154 26 1034 114 115
including 128 146 18 1321 144 143
17THR008 37 78 41 1319 122 11217THR009 29 65 36 957 94 92including 34 60 26 1150 111 102
100 105 5 833 129 12717THR010 51 57 6 729 49 5317THR011 30 83 53 1116 12 109
including 31 62 31 1423 155 135
17THR012 50 117 67 748 75 86
including 59 67 8 1084 103 126
and 75 102 27 1120 110 113
172 177 5 725 64 64
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 28
Down hole length and interception depth ndash 2017 holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THR013 19 73 54 888 54 5
including 19 29 10 2576 88 77
17THR014 12 45 33 749 81 74
including 25 33 8 1148 113 94
17THR015 40 48 8 995 89 8117THR016 66 115 49 1096 129 134
including 66 81 15 1184 142 139
and 89 114 25 1183 134 141
17THR017 54 112 58 1383 132 128
including 56 85 29 2042 183 158
17THR018 47 63 16 1124 151 14117THR019 42 59 17 1032 107 114
17THR020 29 49 20 1067 116 115
including 29 36 7 1352 135 126
17THR021 44 64 20 1204 131 12717THR022 101 138 37 1152 107 1217THR023 91 137 46 1271 139 133
including 91 97 6 1953 187 166
and 114 125 11 2707 311 265
17THR027 29 54 25 1176 126 118
including 30 47 17 1382 141 125
Down hole length and interception depth ndash historic holes
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
11PHR02 74 114 40 875 108 116
11PHR03 150 162 12 750 83 96
11PHR03 163 190 27 732 106 119
11PHR03 206 227 21 988 117 13
11PHR04 124 172 48 1049 128 129
11PHR05 197 219 22 1138 107 133
11PHR06 104 135 31 854 83 115
11PHR06 155 171 16 1315 12 122
11PHR07 96 147 51 941 95 99
11PHR08 103 115 12 1417 139 148
11PHR08 126 144 18 1048 126 142
12BER01 115 139 24 768 72 74
12BER02 18 25 7 1062 103 93
12BER02 113 123 10 907 85 86
12BER04 41 90 49 1191 114 127
12BER04 121 126 5 1241 9 112
12BER05 33 39 6 1109 79 92
12BER05 65 76 11 721 63 66
12BER06 131 169 38 844 83 128
12BER07 38 43 5 704 10 101
12BER09 33 92 59 841 9 116
12BER11 31 62 31 738 84 126
12BER11 92 159 67 1061 10 131
12BER11 173 193 20 737 67 83
12BER12 27 81 54 1430 181 189
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 29
Down hole length and interception depth ndash historic holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
12BER13 21 42 21 761 74 91
12BER13 65 75 10 1882 204 216
12BER14 28 55 27 1013 125 129
12BER16 25 100 75 1008 106 107
12BER17 92 99 7 739 6 63
12BER18 117 157 40 1017 112 114
12BER19 34 56 22 1151 104 108
12BER19 68 75 7 780 61 6
12BER20 21 46 25 731 69 75
13BED01 266 2915 255 872 85 78
16DM01 96 147 51 851 91 86
16DM02 127 172 45 1118 138 136
16DM03 104 111 7 838 103 9
16DM04 91 99 8 887 91 84
16DM05 30 103 73 793 82 9
16DM05 199 211 12 830 251 221
16DM06 28 84 56 1280 162 167
16DM06 138 146 8 722 78 112
16DM07 35 60 25 1232 111 111
16DM07 71 104 33 1224 133 134
16DM08 76 100 24 1026 11 12
16DM08 165 177 12 921 122 126
17THD01 34 123 89 982 94 87
17THD02 47 134 87 911 88 92
17THD03 40 635 235 894 116 108
17THD04 20 29 9 1033 86 8
17THD04 72 96 24 703 88 81
17THD05 44 60 16 993 98 85
17THD05 71 76 5 840 64 63
17THD06 39 85 46 1136 114 101
17THD07 15 128 113 879 81 88
17THD07 142 152 10 704 6 102
17THD07 199 204 5 706 49 65
17THR001 27 63 36 1075 106 104
17THR001 75 84 9 755 91 139
17THR002 37 43 6 711 69 82
17THR002 91 136 45 983 98 105
17THR003 4 59 55 937 93 94
17THR004 49 146 97 888 102 102
17THR005 52 72 20 1053 128 126
17THR006 14 74 60 754 86 87
17THR007 5 22 17 837 0 125
17THR007 128 154 26 1034 114 115
17THR008 37 78 41 1319 122 112
17THR009 29 65 36 957 94 92
17THR009 100 105 5 833 129 127
17THR010 51 57 6 729 49 53
17THR011 30 83 53 1116 12 109
17THR012 50 117 67 748 75 86
17THR012 172 177 5 725 64 64
17THR013 19 73 54 888 54 5
17THR014 12 45 33 749 81 74
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 30
Down hole length and interception depth ndash historic holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THR015 40 48 8 995 89 81
17THR016 66 115 49 1096 129 134
17THR017 54 112 58 1383 132 128
17THR018 47 63 16 1124 151 141
17THR019 42 59 17 1032 32 114
17THR020 29 49 20 1067 116 115
17THR021 44 64 20 1204 131 127
17THR022 101 138 37 1152 107 12
17THR023 91 137 46 1271 139 133
17THR027 29 54 25 1176 126 118
67TH01 12344 20001 7657 979 0 0
70BH01 3962 5334 1372 3323 31 0
70BH01 6431 8443 2012 1203 95 0
70BH02 7406 8686 128 704 75 0
70TH02 78 841 61 1666 175 154
70TH02 871 1021 15 1661 8 72
70TH03 777 1295 518 1016 129 132
80BGH05 39 49 10 752 0 0
80BGH06 18 6804 5004 969 0 0
80BGH08 44 7815 3415 939 0 0
80PYH01 75 17 95 725 0 0
80PYH02 341 4825 1415 1121 0 0
80PYH03 23 35 12 711 0 0
80PYH04 3975 55 1525 735 0 0
80PYH05 367 65 283 1160 118 0
80PYH06 54 62 8 905 0 0
80PYH07 67 794 124 1113 125 0
80PYH10 4845 1374 8895 831 86 0
80PYH11 346 465 119 916 8 0
80PYH11 572 9105 3385 1239 106 0
80PYH12 302 365 63 791 102 0
80PYH12 8515 908 565 857 146 0
80PYH14 2518 2734 216 1252 131 0
93MGM02 85 160 75 941 85 0
98TC01 20 47 27 744 91 126
98TC01 48 71 23 917 119 164
98TC03 34 45 11 1480 55 6
98TC03 68 79 11 1095 43 42
98TC04 84 94 10 966 39 4
98TC04 107 133 26 771 77 82
98TC05 24 62 38 754 64 7
98TC06 66 72 6 727 104 111
98TC06 76 101 25 767 101 106
98TC07 35 46 11 1546 165 171
98TC07 61 82 21 728 91 94
98TC09 32 39 7 716 49 174
98TC09 82 107 25 732 6 67
98TC10 101 125 24 732 79 8
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 31
Criteria JORC Code Explanation Commentary
Data aggregation methods
a In reporting Exploration Results weighting averaging techniques maximum andor minimum grade truncations (eg cutting of high grades) and cut-off grades are usually Material and should be stated
a Where aggregate intercepts incorporate short lengths of high grade results and longer lengths of low grade results the procedure used for such aggregation should be stated and some typical examples of such aggregations should be shown in detail
a The assumptions used for any reporting of metal equivalent values should be clearly stated
Drilling a Drill hole intercept grades are typically reported as down-hole
length-weighted averages with any non-recovered sample within the reported intervals treated as no grade The cut-off used for selecting significant intersections is selected to reflect the overall tenor of mineralisation in most cases 500ppm cobalt
a No top cuts have been applied when calculating average grades for reported significant intersections
a No metal equivalent values are reported
Relationship between mineralis- ation widths and intercept lengths
a These relationships are particularly important in the reporting of Exploration Results
a If the geometry of the mineralisation with respect to the drillhole angle is known its nature should be reported
a If it is not known and only the down hole lengths are reported there should be a clear statement to this effect (eg lsquodown hole length true width not knownrsquo)
a Drill holes at the Thackaringa project are typically angled at 50deg or 60deg and drilled perpendicular to the mineralised trend with drilling orientations adjusted along strike to accommodate folded geological sequences
a Mineralisation at the Big Hill and Railway prospects is steeply dipping and consequently mineralised intersections will be greater than true width At Pyrite Hill mineralisation is gently dipping and mineralised intersections will be close to true width
a There is insufficient geological knowledge to accurately estimate true widths and as such all drill intersections are reported as down hole lengths
Diagrams a Appropriate maps and sections (with scales) and tabulations of intercepts should be included for any significant discovery being reported These should include but not be limited to a plan view of drill hole collar locations and appropriate sectional views
a Appropriate maps and sections are presented in the accompa-nying ASX release
Balanced reporting
a Where comprehensive reporting of all exploration results is not practicable representative reporting of both low and high grades andor widths should be practiced to avoid misleading reporting of Exploration Results
a Only mineralised drill hole intersections regarded as highly anomalous and of economic interest are reported The proportion of each hole represented by the reported intervals can be ascertained from the sum of the reported intervals divided by the total drill hole depth
a All assay results for drill holes included in the various Mineral Resource estimates have been considered and comprise results not necessarily regarded as anomalous
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 32
Criteria JORC Code Explanation Commentary
Other substantive exploration data
a Other exploration data if meaningful and material should be reported including (but not limited to) geological obser-vations geophysical survey results geochemical survey results bulk samples ndash size and method of treatment metallurgical test results bulk density groun d- water geotechnical and rock characteristics potential deleterious or contaminating substances
a No further exploration data is deemed material to the results presented in this release
Further work a The nature and scale of planned further work (eg tests for lateral extensions or depth extensions or large-scale step-out drilling)
a Diagrams clearly highlighting the areas of possible extensions including the main geological interpretations and future drilling areas provided this information is not commercially sensitive
a The nature and scale of planned further work will be determined following the completion of revised Mineral Resource estimation for the Thackaringa deposits scheduled for May 2017
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 11
Figure 9 Big Hill X-section along plane of 17THR013For
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 12
Cobalt Blue BackgroundCobalt Blue (ldquoCOBrdquo) is an exploration company focussed on green energy technology and strategic development to upgrade the existing mineral resource at the Thackaringa Cobalt Project in New South Wales This strategic metal is in strong demand for new generation batteries particularly lithium-ion batteries now being widely used in clean energy systems
COB has entered into a farm-in joint venture agreement with Broken Hill Prospecting Limited (ldquoBPLrdquo) in which COB acquired an initial 51 interest in the Thackaringa Cobalt Project COB will undertake exploration and development programs at the Thackaring Cobalt Project and subject to the achievement of milestones will acquire 100 of the Thackaringa Cobalt Project
The Thackaringa Project 23 km west of Broken Hill and 400km by rail from Port Pirie consists of four granted tenements (EL6622 EL8143 ML86 and ML87) with total area of 63 km2 The main target for exploration is well known and contains documented large tonnage cobalt bearing pyrite deposits The project area is under-explored with the vast majority of historical exploration directed at or around the outcropping pyritic cobalt deposits at Pyrite Hill and Big Hill
Potential to extend the Mineral Resource at Pyrite Hill Big Hill Railway and the other prospects is high Numerous other prospects within COBrsquos tenement package are early stage and under-explored
Looking forward we would like our shareholders to keep in touch with COB updates and related news items which we will post on our website the ASX announcements platform as well as social media such as Facebook ( ) and LinkedIn ( ) Please donrsquot hesitate to join the lsquoCOB friendsrsquo on social media and also to join our newsletter mailing list at our website
Joe KaderavekChief Executive Officerjoekaderavekcobaltblueholdingscom(02) 9966 5629
Competent Person StatementThe information in this report that relates to exploration results Mineral Resources and Targets is based on information compiled by Mr Anthony Johnston BSc (Hons) who is a Member of the Australian Institute of Mining and Metallurgy and who is a non-executive director of Cobalt Blue Holdings Limited the Chief Executive Officer of Broken Hill Prospecting Limited and the Technical Manager of the Joint Venture Mr Johnston has sufficient experience which is relevant to the style of mineralisation and type of deposits under consideration and to the activity which he is undertaking to qualify as a Competent Person as defined in the 2004 amp 2012 Edition of the ldquoAustralasian Code for Reporting of Exploration Results Mineral Resources and Ore Reservesrdquo Mr Johnston consents to the inclusion in the announcement of the matters based on his information in the form and context that the information appears
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 13
Appendix ndash JORC Code 2012 Edition ndash Table 1 Section 1 ndash Sampling Techniques and Data(Criteria in this section apply to all succeeding sections)
Criteria JORC Code Explanation Commentary
Sampling techniques
a Nature and quality of sampling (eg cut channels random chips or specific specialised industry standard measurement tools appropriate to the minerals under investigation such as down-hole gamma sondes or handheld XRF instruments etc) These examples should not be taken as limiting the broad meaning of sampling
a Include reference to measures taken to ensure sample repre-sentivity and the appropriate calibration of any measurement tools or systems used
a Aspects of the determination of mineralisation that are Material to the Public Report
a In cases where lsquoindustry standardrsquo work has been done this would be relatively simple (eg lsquoreverse circulation drilling was used to obtain 1 m samples from which 3 kg was pulverised to produce a 30 g charge for fire assayrsquo) In other cases more explanation may be required such as where there is coarse gold that has inherent sampling problems Unusual commodities or mineralisation types (eg submarine nodules) may warrant disclosure of detailed information
Diamond Drilling (DD)Pre-1990a Diamond drilling was used to obtain core from which irregular
intervals reflecting visual mineralisation and geological logging were hand-split or sawn Samples were submitted for analysis using a mixed acid digestion and AAS methodology
Post-1990 a Diamond drilling (one drill hole) was used to obtain core from
which irregular intervals reflecting visual mineralisation and geological logging were sawn (quarter core for HQ) Samples were submitted for analysis using a mixed acid digestion and ICP-OES methodology
2016 Metallurgical Drillinga Eight HQ diameter diamond drill holes (DD) were drilled at
the Thackaringa project in late 2016 They will be used as metallurgical reference holes and to twin some of the previous reverse circulation percussion (RC) holes for QAQC and assay comparison between DD and RC There were two holes drilled at Pyrite Hill two at Big Hill and four at Railway
a Diamond drilling was used to obtain core from which regular (one-metre) intervals were sawn with
a one half core dispatched for analysis using a mixed acid digestion and ICP-AES methodology
a the other half was further sawn such that one quarter- core was sent for metallurgical test work and the other quarter-core retained for archival purposes
Historical Reverse Circulation Drilling a RC drilling was used to obtain a representative sample by means
of riffle splitting with samples submitted for analysis using the above-mentioned methodologies
a Pre-2000 drill samples were assayed for a small and variable suite of elements (sometimes only cobalt) The post-2000 drill samples (5095 samples) are all assayed by ICP-MS for a suite of 33 elements
2017 Diamond Drilling Program a This announcement summarises the results from approximately
23 of the 2017 diamond drilling program Fourteen HQ diameter diamond drill holes (DD) were assayed at the Thackaringa project They will be used as metallurgical reference holes and to twin some of the previous reverse circulation percussion (RC) holes for QAQC and assay comparison between DD and RC There were four holes drilled at Pyrite Hill two at Big Hill and 8 at Railway
a Diamond drilling (17THD01-03) was used to obtain core from which regular (one-metre) intervals were sawn with
a one half core dispatched for analysis using a mixed acid digestion and ICP-AES methodology
a the other half was retained for future metallurgical test work and archival purposes
a Diamond drilling (17THD04-14) was used to obtain core from which regular (one-metre) intervals were sawn with
a one quarter core dispatched for analysis using a mixed acid digestion and ICP-AES methodology
a the other three quarters was retained for future metallurgical test work and archival purposes
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 14
Criteria JORC Code Explanation Commentary
Sampling techniques (continued)
2017 RC drilling Program a This announcement summarises the results from approximately
23 of the 2017 RC drilling program Thirty eight (38) RC drill holes were drilled amp assayed at the Thackaringa project They will be used to infill the drill spacing of historic holes to allow a re-estimation of the existing Mineral Resource There were 12 holes drilled at Pyrite Hill three at Big Hill and 23 at Railway
a RC drilling was used to obtain a representative sample by means of riffle splitting with samples submitted for analysis using the above-mentioned methodologies
a The 2017 drill samples are all assayed by ICP-MS for a suite of 33 elements
Drilling techniques
a Drill type (eg core reverse circulation open-hole hammer rotary air blast auger Bangka sonic etc) and details (eg core diameter triple or standard tube depth of diamond tails face-sampling bit or other type whether core is oriented and if so by what method etc)
a The Thackaringa drilling database comprises a total of forty-eight (48) DD holes and eighty-one (81) RC drill holes Diamond drilling was predominantly completed with standard diameter conventional HQ and NQ utilising RC and percussion pre-collars to an average 25 metres (see Drill-hole Information for further details) Early (1960-1970) drill holes utilised HX ndash AX diameters dependent on drilling depth Reverse circulation drilling utilised standard drill-hole diameters (48rdquo-55rdquo) with a face sampling hammer
a During 2013 a single diamond drill hole (13BED01) was completed at the Railway deposit using a triple tube system with a HQ3 diameter
Year Drilling Metres
1967 1 diamond drill hole 3042
1970 4 diamond drill holes 4966
1980 18 diamond and 1 RC drill hole 171123
1993 2 diamond drill holes 250
1998 11 RC drill holes 109325
2011 11 RC drill holes 1811
2012 20 RC drill holes 287425
2013 1 diamond drill hole 3492
2016 8 diamond drill holes 14848
2017 14 diamond drill holes and 38 RC drill holes 6472
Total 48 diamond and 81 RC drill holes 1684653
a This ASX release describes assay results from seven (7) diamond drill holes and twenty-four (24) RC holes completed and assayed by April 2017 Commencement of that drilling program was reported to ASX by the company in April 2017
a Diamond drilling was completed using a triple tube system with a HQ3 diameter
a Holes were drilled at angles between 40 and 60 degrees from horizontal and the resulting core was oriented as part of the logging process
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 15
Criteria JORC Code Explanation Commentary
Drill sample recovery
a Method of recording and assessing core and chip sample recoveries and results assessed
a Measures taken to maximise sample recovery and ensure representative nature of the samples
a Whether a relationship exists between sample recovery and grade and whether sample bias may have occurred due to preferential lossgain of finecoarse material
Diamond Drilling
a Historical core recoveries were accurately quantified through measurement of actual core recovered versus drilled intervals
a Historical diamond drilling employed conventional drilling techniques while diamond drilling completed by Broken Hill Prospecting utilised a triple-tube system to maximise sample recovery
a Core recovery of 997 was achieved during completion of drill hole 13BED01
a Core recovery of 98 was achieved during the 2016 diamond drilling program
a Core recovery of 933 was achieved during the 2017 diamond drilling program
a No relationship between sample recovery and grade has been observed
Reverse Circulation Drilling
a Reverse circulation sample recoveries were visually estimated during drilling programs Where the estimated sample recovery was below 100 this was recorded in field logs by means of qualitative observation
a Reverse circulation drilling employed adequate air (using a compressor and booster) to maximise sample recovery
a No relationship between sample recovery and grade has been observed
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 16
Criteria JORC Code Explanation Commentary
Logging a Whether core and chip samples have been geologically and geotechnically logged to a level of detail to support appropriate Mineral Resource estimation mining studies and metallurgical studies
a Whether logging is qualitative or quantitative in nature Core (or costean channel etc) photography
a The total length and percentage of the relevant intersections logged
a A qualified geoscientist has logged all reported drill holes in their entirety This logging has been completed to a level of detail considered to accurately support Mineral Resource estimation and metallurgical studies The parameters logged include lithology alteration mineralisation and oxidation These parameters are both qualitative and quantitative in nature
a Diamond drilling completed in 2017 by BPL has been subject to geotechnical logging with parameters recorded including rock-quality designation (RQD) fracture frequency and hardness
a During 2013 a considerable amount of historical drilling was re-logged through review of available core stored at Broken Hill as well the re-interpretation of historical reports where core or percussion samples no longer exist A total of eight (8) diamond drill holes and sixteen (16) diamond drill holes with pre-collars were re-logged as detailed below
Hole ID Deposit Max Depth Hole TypePre-Collar Depth (m)
67TH01 Pyrite Hill 3042 DDH1 ndash
70TH02 Pyrite Hill 1486 DDH1 ndash
70TH03 Pyrite Hill 1414 DDH1 ndash
70BH01 Big Hill 1027 DDH1 ndash
70BH02 Big Hill 1039 DDH1 ndash
80PYH13 Pyrite Hill 77 DDH1 ndash
80PYH14 Pyrite Hill 3003 DDH1 ndash
80BGH09 Big Hill 1005 DDH1 ndash
80PYH01 Pyrite Hill 2453 PDDH2 6
80PYH02 Pyrite Hill 513 PDDH2 3358
80PYH04 Pyrite Hill 55 PDDH2 387
80PYH05 Pyrite Hill 936 PDDH2 18
80PYH06 Pyrite Hill 855 PDDH2 18
80PYH07 Pyrite Hill 945 PDDH2 12
80PYH08 Pyrite Hill 110 PDDH2 8
80PYH09 Pyrite Hill 1005 PDDH2 8
80PYH10 Pyrite Hill 1453 PDDH2 255
80PYH11 Pyrite Hill 1031 PDDH2 18
80PYH12 Pyrite Hill 1095 PDDH2 42
80BGH05 Big Hill 5486 RCDDH3 455
80BGH06 Big Hill 6804 RCDDH3 58
80BGH08 Big Hill 797 RCDDH3 699
93MGM01 Pyrite Hill 70 RDDH4 24
93MGM02 Pyrite Hill 180 RDDH4 48
1 Diamond drill hole2 Diamond drill hole with percussion pre-collar3 Diamond drill hole with reverse circulation pre-collar4 Diamond drill hole with rotary air blast pre-collar
a Litho-geochemistry has been used to verify geological logging where available for drilling completed by Broken Hill Prospecting post 2010
a Representative reference trays of chips from reverse circulation drilling completed post 2010 have been retained by Broken Hill Prospecting
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 17
Criteria JORC Code Explanation Commentary
Sub-sampling techniques and sample preparation
a If core whether cut or sawn and whether quarter half or all core taken
a If non-core whether riffled tube sampled rotary split etc and whether sampled wet or dry
a For all sample types the nature quality and appropriateness of the sample preparation technique
a Quality control procedures adopted for all sub-sampling stages to maximise representivity of samples
a Measures taken to ensure that the sampling is representative of the in situ material collected including for instance results for field duplicatesecond-half sampling
a Whether sample sizes are appropriate to the grain size of the material being sampled
Diamond Drilling (DD)Pre-1990a Core samples were hand-split or sawn with re-logging of available
historical core (see Logging) indicating a 7030 (retainedassayed) split was typical The variation of sample ratios noted are consid-ered consistent with the sub-sampling technique (hand-splitting)
a No second half samples were submitted for analysis a It is considered water used for core cutting is unprocessed and
unlikely to have introduced sample contamination a Procedures relating to the definition of the line of cutting or splitting
are not available It is expected that lsquostandard industry practicersquo for the period was applied to maximize sample representivity
Post-1990 a NQ drilling core was sawn with half core submitted for assay a HQ drilling core was sawn with quarter core submitted for assay a No second half samples were submitted for analysis a It is considered water used for core cutting is unprocessed and
unlikely to have introduced sample contamination a Procedures relating to the definition of the line of cutting or splitting
are not available It is expected that lsquostandard industry practicersquo for the period was applied to maximise sample representivity
2016 Metallurgical Drilling a All HQ drill core was sawn into halves with each half then re-sawn
to provide 4 lengths of quarter core for each interval a One half core was submitted for assay a One quarter core was submitted for metallurgical test work a One quarter core was retained for archive a It is considered that the water used for core cutting is most
unlikely to have introduced sample contamination a Sample sawing and processing for test work were undertaken
according to lsquostandard industry practicersquo to maximise sample representivity
2017 Diamond Drilling a All HQ drill core was sawn into halves with each half then re-sawn to
provide 4 lengths of quarter core for each interval
a One quarter ndash one half core was submitted for assay
a One quarter ndash three quarter core was retained for archive
a It is considered that the water used for core cutting is most unlikely to have introduced sample contamination
a Sample sawing and processing for test work were undertaken according to lsquostandard industry practicersquo to maximise sample representivity
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 18
Criteria JORC Code Explanation Commentary
Sub-sampling techniques and sample preparation (continued)
Historical Reverse Circulation Drilling a Sub-sampling of reverse circulationpercussion chips was
achieved using a cyclone with cone or riffle splitter a During drilling operations the sample cyclone and splitter were
regularly cleaned to prevent down hole sample contamination a Dry sampling was achieved with the use of adequate air using a
compressor and booster where groundwater was encountered a During reverse circulation drilling completed by Broken Hill
Prospecting duplicate samples were collected at the time of drilling These were obtained by spearing the bulk material held in the PVC sacks using a spear made of 40mm diameter PVC pipe three samples were speared through the full depth of the bulk material and these were combined to form one sample
a The Thackaringa drilling database includes a total of 139 field duplicates collected during reverse circulation drilling This reflects a ratio of approximately one field duplicate in every 32 samples (31) for drill holes where duplicates were collected (31 drill holes for 4469 metres) and an overall ratio of one field duplicate in every 42 samples (24) for all reverse circulation drill holes (43 drill holes for 58015 metres)
a Statistical analysis of field duplicates collected during drilling completed by Broken Hill Prospecting (119 duplicates representing 86 of all field duplicates) considered 18 elements of which only chromium lanthanum and titanium show some bias in the duplicate samples For cobalt the confidence limits were evenly placed either side of zero and the duplicates are deemed to be representative of the original samples
2017 Reverse Circulation Drilling a Sub-sampling of reverse circulationpercussion chips was achieved
using a riffle splitter
a During drilling operations the splitter was regularly cleaned to prevent down hole sample contamination
a Dry sampling was achieved with the use of adequate air using a compressor and booster where groundwater was encountered
a During reverse circulation drilling completed by Broken Hill Prospecting duplicate samples were collected at the time of drilling These were obtained by riffle splitting the remnant bulk sample following collection of the primary split
a Field duplicate samples were collected regularly during drilling (for every 18th sample on average)
a Assay results received to date include analysis of 120 field duplicate pairs from 24 RC drill holes
a A measure of the average precision of the sampling sample preparation and assaying methods given by the mean per cent difference (MPD) assay values of the duplicate pairs is summarised below Overall the sampling and assay precision for Co Fe and S at economically significant grades is regarded as reasonable
RC Field Duplicate Pairs
Co Cut-Off Count Co MPD S MPD Fe MPD
All 120 13 16 9
200ppm 52 13 11 10
500ppm 34 12 9 9
1000ppm 20 8 7 7
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 19
Criteria JORC Code Explanation Commentary
Quality of assay data and laboratory tests
a The nature quality and appropriateness of the assaying and laboratory procedures used and whether the technique is considered partial or total
a For geophysical tools spectrometers handheld XRF instruments etc the parameters used in determining the analysis including instrument make and model reading times calibrations factors applied and their derivation etc
a Nature of quality control proce-dures adopted (eg standards blanks duplicates external laboratory checks) and whether acceptable levels of accuracy (ie lack of bias) and precision have been established
a The nature and quality of all assaying and laboratory procedures employed for samples obtained through drilling (diamond and reverse circulation) are considered lsquoindustry standardrsquo for the respective periods
a The assay techniques employed for drilling (diamond and reverse circulation) include mixed acid digestion with ICP-OES and AAS finishes These methods are considered appropriate for the targeted mineralisation and regarded as a lsquonear totalrsquo digestion technique with resistive phases not expected to affect cobalt analyses
a All samples have been processed at independent commercial laboratories including AMDEL Australian Laboratory Services (ALS) Analabs and Genalysis
a All samples from drilling completed by Broken Hill Prospecting during 2011-2012 were assayed at ALS in Orange New South Wales All samples from drilling completed by Broken Hill Prospecting during 2016-2017 were assayed at ALS Adelaide South Australia ALS is a NATA Accredited Laboratory and qualifies for JASANZ ISO90012008 quality systems ALS maintains robust internal QAQC procedures (including analysis of standards repeats and blanks)
a To monitor the accuracy of assay results from the 2017 Thackaringa drilling CRM standards were included in the assay sample stream every 24 samples (on average) for RC chips and every 30 samples for diamond core The CRM samples were purchased from Ore Research amp Exploration Pty Ltd and the results are summarised below
Cobalt Sulphur Iron
OREAS Standard Count plusmn1SD plusmn2SD plusmn3SD plusmn3SD+ plusmn1SD plusmn2SD plusmn3SD plusmn3SD+ plusmn1SD plusmn2SD plusmn3SD plusmn3SD+
160 Low S Blank (28ppm Co) 12 10 ndash ndash 2 7 ndash ndash 5 6 2 2 2
162 Medium Grade (631ppm Co) 53 37 12 3 ndash 32 18 3 ndash 14 12 13 14
163 Low Grade (230ppm Co) 40 30 8 2 ndash 7 25 7 1 2 3 2 33
165 High Grade (2445ppm Co) 13 11 2 ndash ndash 7 5 1 ndash 1 5 2 5
166 High Grade (1970ppm Co) 35 26 8 ndash 1 27 6 ndash 2 9 5 5 16
153 114 30 5 3 80 54 11 8 32 27 24 70
75 20 3 2 52 35 7 5 21 18 16 46
Cobalt CRM Standards
Internal COB assay QAQC protocols cobalt performed well with 95 standard analyses falling within two standard deviations of the certified value and 75 within one SD No systematic out-of-specification trends were identified and there was no discernible tendency for a particular Co standard to preferentially assay either higher or lower than the certified Co concentration
Cobalt Blanks
A number of blanks were also submitted with the RC chip and diamond core samples mdash the OREAS160 CRM is essentially a low-sulphide blank with respect to cobalt (28ppm) and the results of assay of this standard are summarised in Table 1 In addition five quartz sand blanks were submitted bracketing very pyrite-rich intervals in diamond drill holes 17THD06 and 17THD07 Overall the quartz sand blanks returned a maximum of 69ppm Co 004 S and 065 Fe which are regarded as similar to background values and any contamination during sample preparation at the assay laboratory is likely to be immaterial to the final results
Based on the assay of standards and blanks with 95 of the Co results falling within two standard deviations of the certified value it is concluded that the assay results for Co are likely to be representative for the material submitted with no additional source of inaccuracy or bias identified
Sulphur CRM Standards
sulphur was reasonably well-performed with 87 of the total 153 standard analyses falling within two standard deviations of the certified value and 95 within 3SD
Iron CRM Standards
Iron analysis of standards showed poor accuracy with a tendency to assay low mdash 46 of the assays fall outside of 3 SD typically but not exclusively lower than the certified value
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 20
Criteria JORC Code Explanation Commentary
Verification of sampling and assaying
a The verification of significant intersections by either inde-pendent or alternative company personnel
a The use of twinned holes
a Documentation of primary data data entry procedures data verification data storage (physical and electronic) protocols
a Discuss any adjustment to assay data
a Historical drilling intersections were internally verified by personnel employed by previous explorers including CRAE Pty Limited Central Austin Pty Limited and Hunter Resources Broken Hill Prospecting has completed a systematic review of the related data
a The Thackaringa drilling database exists in electronic form as a Microsoft Access database Information related to individual drill holes is stored in digital files as extracted from historical reports (typically including location plan section logs photos surveys assays and petrology)
a Historical drilling data available in electronic form has been re-formatted and imported into the drilling database
a Quantitative historical drilling data including assays have been captured electronically during systematic data compilation and validation completed by Broken Hill Prospecting
a Samples returning assays below detection limits are assigned half detection limit values in the database
a All significant intersections are verified by the Companyrsquos Exploration Manager and independent geological consultant
Location of data points
a Accuracy and quality of surveys used to locate drill holes (collar and down-hole surveys) trenches mine workings and other locations used in Mineral Resource estimation
a Specification of the grid system used
a Quality and adequacy of topographic control
a Historical drill collars have been relocated and surveyed using a differential GPS (DGPS) In the instances where no collar could be located the position has been derived from georeferenced historical plans
a During systematic data validation completed in 2016 three drill holes at Big Hill were found to be incorrectly located One collar was located and surveyed by GPS and two were digitised from georeferenced historical plans (reported to the nearest metre) as the collars had been destroyed These corrections were captured in the Big Hill Mineral Resource estimate
a Down hole surveys using digital cameras were completed on all post 2000 drilling Down hole surveys for some earlier drilling were estimated from hole trace and section data where raw survey data was not reported
a All 2017 Thackaringa drill hole collars were located and surveyed with DGPS by an independent surveyor with reported accuracy of plusmn005m in horizontal and vertical measurement
a Downhole surveys using digital cameras were completed on all 2017 drill-holes
a All data is recorded in the GDA94 datum UTM Zone 54 (MGA54)
a 3D validation of drilling data has been completed by independent geological consultants to support detailed geological modelling in Microminetrade software
a The quality of topographic control is deemed adequate in consideration of the results presented in this release
Data spacing and distribution
a Data spacing for reporting of Exploration Results
a Whether the data spacing and distribution is sufficient to estab-lish the degree of geological and grade continuity appropriate for the Mineral Resource and Ore Reserve estimation procedure(s) and classifications applied
a Whether sample compositing has been applied
a The data density of existing drill holes at Thackaringa has been materially increased by the 2017 drilling program which was undertaken primarily to undertake infill drilling
a Detailed geological mapping supported by drill-hole data of sufficient spacing and distribution to establish a 3D geological model
a The level of geological and grade continuity is appropriate for the Mineral Resource estimation methodologies used and the classifications applied (being wholly Inferred Mineral Resources) Note that a recalculation of the Mineral Resource using 2017 drilling and assay data will commence in mid-2017
a No sample compositing has been applied to reported intersections
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 21
Criteria JORC Code Explanation Commentary
Orientation of data in relation to geological structure
a Whether the orientation of sampling achieves unbiased sampling of possible structures and the extent to which this is known considering the deposit type
a If the relationship between the drilling orientation and the orientation of key mineralised structures is considered to have introduced a sampling bias this should be assessed and reported if material
a The 2017 drill holes at the Thackaringa project were typically angled at -500 or -600 to the horizontal and drilled perpendicular to the mineralised trend with drilling orientations adjusted along strike to accommodate folded geological sequences
a Mineralisation at the Big Hill and Railway prospects is steeply dipping and consequently mineralised intersections will be greater than true width At Pyrite Hill mineralisation is gently dipping and mineralised intersections will be close to true width
a The drilling orientation is not considered to have introduced a sampling bias on assessment of the current geological interpretation
Sample security
a The measures taken to ensure sample security
a Sample security procedures are considered to be lsquoindustry standardrsquo for the respective periods
a Following recent drilling completed by BPL samples were trucked by an independent courier directly from Broken Hill to ALS Adelaide
a BPL consider that risks associated with sample security are limited given the nature of the targeted mineralisation
Audits or reviews
a The results of any audits or reviews of sampling techniques and data
a In late 2016 an independent validation of the Thackaringa drilling database was completed
a The data validation process consisted of systematic review of drilling data (collars assays and surveys) for identification of transcription errors
a Following review historical drill hole locations were also validated against georeferenced historical maps to confirm their location
a Three (3) drill holes at Big Hill were found to be incorrectly located One collar was located and surveyed by GPS and two were digitised from georeferenced historical plans (reported to the nearest metre) as the collars had been destroyed These corrections were captured in the Big Hill Mineral Resource estimate
a Total depths for all holes were checked against original reports
a Final 3D validation of drilling data has been completed by independent geological consultants to support detailed geological modelling in Microminetrade software
a Audits and reviews of QAQC results and procedures are further described in preceding sections of this table including Quality of assay data and laboratory tests Sub-sampling techniques and sample preparation and Logging
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 22
Section 2 Reporting of Exploration Results(Criteria listed in the preceding section also apply to this section)
Criteria JORC Code Explanation Commentary
Mineral tenement and land tenure status
a Type reference namenumber location and ownership including agreements or material issues with third parties such as joint ventures partnerships overriding royalties native title interests historical sites wilderness or national park and environmental settings
a The security of the tenure held at the time of reporting along with any known impediments to obtaining a licence to operate in the area
a The Thackaringa Cobalt project is located approximately 25 kilometres west-southwest of Broken Hill and comprises four tenements with a total area of 63 km2
Tenement
Registered amp Beneficial Holder Minerals Grant Date Expiry Date
Annual Expenditure
Commit-ment
EL6622 Broken Hill Prospecting Limited (BPL)
Group 1 30082006 29082017 $47000
EL 8143 BPL Group 1 26072013 26072017 $14000
ML86 BPL Cobalt iron nickel platinum sulphur
05111975 04112017 $75000
ML87 BPL Cobalt iron nickel platinum sulphur
05111975 04112017 $75000
a The project tenure is subject to a Farm-In agreement between Cobalt Blue Holdings Limited (COB) and Broken Hill Prospecting Limited (BPL) The nature of this agreement is detailed in the COB Replacement Prospectus (as released 4 January 2017)
a The nearest residence (Thackaringa Station) is located approxi-mately three kilometres west of EL6622
a EL6622 is intersected by the Transcontinental Railway the Barrier Highway is located the north of the licence boundaries
a The majority of the project tenure is covered by Western Lands Lease which is considered to extinguish native title interest However Native Title Determination NC9732 (Barkandji Traditional Owners 8) is current over the area and may be relevant to Crown Land parcels (eg public roads) within the project area
a The project tenure is more than 90 kilometres from the nearest National Park and or Wilderness Area (Kinchega National Park) and approximately 20 kilometres south of the nearest Water Supply Reserve (Umberumberka Reservoir Water Supply Reserve)
a The Company is not aware of any impediments to obtaining a licence to operate in the area
Exploration done by other parties
a Acknowledgment and appraisal of exploration by other parties
a A detailed and complete record of all exploration activities undertaken prior to the BPL 2016 drilling program is appended to the JORC Table 1 which forms part of the Cobalt Blue Prospectus Document available on the COB website
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 23
Criteria JORC Code Explanation Commentary
Geology a Deposit type geological setting and style of mineralisation
Regional Geological Setting a The Thackaringa project is located in a deformed and metamor-
phosed Proterozoic supracrustal succession named the Willyama Supergroup which crops out as several inliers in western New South Wales including the Broken Hill Block (Willis et al 1982)
a Exploration by BPL Limited has been focused on the discovery of cobaltiferous pyrite deposits and Broken Hill type base-metal mineralisation both of which are known from historical exploration in the district
a The project area covers portions of the Broken Hill and Thackaringa group successions which host the majority of mineralisation in the region including the Broken Hill base-metal deposit The Sundown Group suite is also present The extensive sequence of quartz-albite-plagioclase rock that hosts the cobaltiferous pyrite mineralisation is interpreted as belonging to the Himalaya Formation which is stratigraphically at the top of the Thackaringa Group
Local Geological Setting a The oldest rocks in the region belong to the Curnamona Craton
which outcrops on the Broken Hill and Euriowie blocks a The overlying Proterozoic rocks have been broadly subdivided
into three major groupings of which the oldest groups are the highly deformed metasediments and igneous derived rocks of the Thackaringa and Broken Hill groups They comprise a major part of the Willyama Supergroup and host the giant Broken Hill massive Pb-Zn-Ag sulphide ore body EL6622 is within the Broken Hill block of the Curnamona Craton
Mineralisation Style a The Thackaringa Mineral deposits (Pyrite Hill Big Hill and Railway)
are characterised by large tonnage cobaltiferous-pyrite minerali-sation hosted within siliceous albitic gneisses and schists of the Himalaya Formation
a Cobalt mineralisation exists within stratabound pyritic horizons where cobalt is present within the pyrite lattice Mineralogical studies have indicated the majority of cobalt (~85) is found in solid solution with primary pyrite (Henley 1998)
a A strong correlation between pyrite content and cobalt grade is observed
a The regional geological setting indicates additional mineralisation targets including
a Stratiform Broken Hill Type (BHT) Copper-Lead-Zinc-Silver deposits
a Copper-rich BHT deposits a Stratiform to stratabound Copper-Cobalt-Gold deposits a Epigenetic Gold and Base metal deposits
Drill hole Information
a A summary of all information mat- erial to the understanding of the exploration results including a tab- ulation of the following information for all Material drill holes
a easting and northing of the drill hole collar
a elevation or RL (Reduced Level ndash elevation above sea level in metres) of the drill hole collar
a dip and azimuth of the hole
a down hole length and interception depth
a See drill holle summaries below
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 24
Drill hole summaries
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
17THD01 Pyrite Hill 1242 MGA54 518382 6449551 28906 -40 222 DDH1
17THD02 Pyrite Hill 1497 MGA54 518475 6449445 29054 -40 258 DDH1
17THD03 Pyrite Hill 785 MGA54 518370 6449190 30328 -40 2851 DDH1
17THD04 Big Hill 1198 MGA54 521078 6449589 27841 -45 1551 DDH1
17THD05 Big Hill 995 MGA54 521669 6449889 2785 -40 131 DDH1
17THD06 Railway 1655 MGA54 521970 6450705 2872 -45 128 DDH1
17THD07 Railway 2746 MGA54 522569 6451282 27067 -45 1565 DDH1
17THD08 Railway 1325 MGA54 522784 6451280 268881 -45 326 DDH1
17THD09 Railway 1205 MGA54 522905 6451511 278471 -40 1525 DDH1
17THD10 Railway 842 MGA54 522992 6451569 279779 -45 130 DDH1
17THD11 Railway 1115 MGA54 523109 6451682 280847 -40 1605 DDH1
17THD12 Railway 1265 MGA54 522796 6451419 272936 -40 14075 DDH1
17THD13 Railway 1055 MGA54 522836 6451456 276747 -40 1385 DDH1
17THD14 Pyrite Hill 99 MGA54 518375 6449089 29425 -60 285 DDH1
17THR001 Railway 156 MGA54 522615 6451277 267561 -60 120 RC5
17THR002 Railway 160 MGA54 522573 6451299 268511 -60 120 RC5
17THR003 Railway 96 MGA54 522124 6450868 27739 -60 130 RC5
17THR004 Railway 150 MGA54 522387 6451319 271453 -60 120 RC5
17THR005 Railway 72 MGA54 522024 6450783 282154 -60 120 RC5
17THR006 Railway 114 MGA54 522049 6450780 28401 -58 125 RC5
17THR007 Railway 180 MGA54 521965 6450699 286585 -59 125 RC5
17THR008 Railway 132 MGA54 521917 6450562 291682 -56 105 RC5
17THR009 Railway 120 MGA54 521906 6450496 292751 -58 105 RC5
17THR010 Railway 72 MGA54 521959 6450398 286445 -56 285 RC5
17THR011 Railway 126 MGA54 522302 6451169 276812 -56 120 RC5
17THR012 Railway 180 MGA54 522440 6451304 274931 -58 173 RC5
17THR013 Big Hill 102 MGA54 521750 6449942 28489 -60 1305 RC5
17THR014 Big Hill 104 MGA54 521628 6449796 277545 -53 130 RC5
17THR015 Big Hill 108 MGA54 521793 6449918 284847 -58 310 RC5
17THR016 Pyrite Hill 138 MGA54 518446 6449209 290391 -57 283 RC5
17THR017 Pyrite Hill 120 MGA54 518449 6449263 293147 -56 2815 RC5
17THR018 Pyrite Hill 78 MGA54 518027 6449806 289567 -60 222 RC5
17THR019 Pyrite Hill 72 MGA54 518105 6449754 287701 -55 222 RC5
17THR020 Pyrite Hill 66 MGA54 518166 6449695 288685 -60 222 RC5
17THR021 Pyrite Hill 78 MGA54 518183 6449717 286007 -60 222 RC5
17THR022 Pyrite Hill 156 MGA54 518510 6449306 28682 -55 281 RC5
17THR023 Pyrite Hill 150 MGA54 518506 6449377 289481 -57 2645 RC5
17THR024 Pyrite Hill 150 MGA54 518457 6449498 288137 -595 2285 RC5
17THR025 Pyrite Hill 114 MGA54 518311 6449609 287463 -60 222 RC5
17THR026 Pyrite Hill 114 MGA54 518268 6449681 284164 -60 222 RC5
17THR027 Pyrite Hill 72 MGA54 518243 6449646 287176 -60 222 RC5
17THR028 Railway 150 MGA54 522457 6451167 300659 -60 350 RC5
17THR029 Railway 162 MGA54 522482 6451084 295964 -60 175 RC5
17THR030 Railway 138 MGA54 522783 6451423 270814 -55 140 RC5
17THR031 Railway 120 MGA54 522945 6451566 27619 -55 145 RC5
17THR032 Railway 132 MGA54 522819 6451473 273712 -53 140 RC5
17THR033 Railway 120 MGA54 522501 6451315 26963 -60 175 RC5
17THR034 Railway 132 MGA54 522321 6451214 275947 -55 127 RC5
17THR035 Railway 156 MGA54 522259 6451120 275749 -552 130 RC5
17THR036 Railway 92 MGA54 522186 6450998 275339 -612 130 RC5
17THR037 Railway 126 MGA54 522148 6450941 274202 -55 126 RC5
17THR038 Railway 168 MGA54 521927 6450619 289555 -55 108 RC5
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 25
Historic down-hole information
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
67TH01 Pyrite Hill 3042 MGA94_54 518564805 644946003 280643 -55 2606 DDH1
70TH02 Pyrite Hill 1486 MGA94_54 51827242 644968054 28408 -61 2186 DDH1
70TH03 Pyrite Hill 1414 MGA94_54 51844985 644921188 28981 -62 2836 DDH1
70BH01 Big Hill 1027 MGA94_54 52085056 64493085 28456 -47 3186 DDH1
70BH02 Big Hill 1039 MGA94_54 52078612 64492644 2801 -50 3186 DDH1
80PYH13 Pyrite Hill 77 MGA94_54 5183582 64490377 29035 -50 2807 DDH1
80PYH14 Pyrite Hill 3003 MGA94_54 51866118 644928762 27796 -60 2807 DDH1
80PYH03 Pyrite Hill 35 MGA94_54 5182515 64495699 2994 -60 2207 PDDH2 2280BGH09 Big Hill 1005 MGA94_54 52065743 644929252 27280 -50 1447 DDH1
80PYH01 Pyrite Hill 2453 MGA94_54 5182462 64495657 3011 -60 2027 PDDH2 680PYH02 Pyrite Hill 513 MGA94_54 5182607 64495742 2976 -60 2207 PDDH2 335880PYH04 Pyrite Hill 55 MGA94_54 51836655 644923174 30834 -60 2957 PDDH2 38780PYH05 Pyrite Hill 936 MGA94_54 51822697 644967819 28518 -49 2227 PDDH2 1880PYH06 Pyrite Hill 855 MGA94_54 51816348 64497573 28373 -544 2227 PDDH2 1880PYH07 Pyrite Hill 945 MGA94_54 51808406 644981836 28516 -55 2227 PDDH2 1280PYH08 Pyrite Hill 110 MGA94_54 51800954 644988543 28614 -60 2227 PDDH2 880PYH09 Pyrite Hill 1005 MGA94_54 5179174 644993176 28655 -485 2227 PDDH2 880PYH10 Pyrite Hill 1453 MGA94_54 51839296 644956596 28553 -50 2227 PDDH2 25580PYH11 Pyrite Hill 1031 MGA94_54 51844096 644932952 29725 -50 2807 PDDH2 1880PYH12 Pyrite Hill 1095 MGA94_54 51840728 644913731 29263 -50 2807 PDDH2 4280BGH05 Big Hill 5486 MGA94_54 52095535 644953441 28893 -60 1637 RCDDH3 45598TC01 Railway 100 MGA94_54 52275006 645133973 26727 -60 1589 RC5
98TC02 Railway 100 MGA94_54 52239241 645138683 26678 -60 1409 RC5
98TC03 Big Hill 84 MGA94_54 52081645 644936939 31305 -60 1359 RC5
98TC04 Big Hill 13825 MGA94_54 52086005 644945085 30409 -60 1409 RC5
98TC05 Big Hill 70 MGA94_54 520728 644932807 28863 -50 1229 RC5
98TC06 Big Hill 108 MGA94_54 520715 6449343 28513 -60 1259 RC5
98TC07 Big Hill 120 MGA94_54 52078597 644938821 29922 -50 1339 RC5
98TC08 Big Hill 90 MGA94_54 52080195 644947781 29101 -60 1509 RC5
98TC09 Big Hill 114 MGA94_54 52082221 644946079 29625 -60 1339 RC5
98TC10 Big Hill 134 MGA94_54 521018 6449576 2815 -50 1729 RC5
98TC11 Railway 35 MGA94_54 5224112 645137396 26701 -60 1329 RC5
80BGH06 Big Hill 6804 MGA94_54 520880 6449472 299 -60 1707 RCDDH3 5880BGH08 Big Hill 797 MGA94_54 52076879 644939093 29629 -60 1267 RCDDH3 69980BGH07 Big Hill 23 MGA94_54 52113656 6449599 27411 -60 1777 RC5
93MGM01 Pyrite Hill 70 MGA94_54 51818544 644971377 28628 -60 2228 RDDH4 2493MGM02 Pyrite Hill 180 MGA94_54 51851545 644945467 28479 -60 2588 RDDH4 4811PHR01 Pyrite Hill 150 MGA94_54 51843547 644907276 28534 -60 27906 RC5
11PHR02 Pyrite Hill 198 MGA94_54 51849992 644915931 28379 -60 27906 RC5
11PHR03 Pyrite Hill 240 MGA94_54 5185603 644918961 28026 -60 27906 RC5
11PHR04 Pyrite Hill 186 MGA94_54 51852863 6449257 28403 -60 27906 RC5
11PHR05 Pyrite Hill 234 MGA94_54 51858425 644939762 28022 -60 25906 RC5
11PHR06 Pyrite Hill 180 MGA94_54 5184909 644952259 28402 -60 23406 RC5
11PHR07 Pyrite Hill 174 MGA94_54 51841347 64495929 28286 -60 21906 RC5
11PHR08 Pyrite Hill 180 MGA94_54 51834274 644965585 28288 -60 21806 RC5
11PSR01 Pyrite Hill 59 MGA94_54 51874273 6448864 26838 -60 25806 RC5
11PSR02 Pyrite Hill 132 MGA94_54 51871938 644896001 27041 -60 25506 RC5
11PSR03 Pyrite Hill 78 MGA94_54 51868699 644905535 27279 -60 25506 RC5
12BER01 Railway 157 MGA94_54 52166731 644989323 27769 -60 141 RC5
12BER02 Railway 132 MGA94_54 52121267 644969067 27353 -60 162 RC5
12BER03 Railway 151 MGA94_54 52187901 645043547 28859 -60 102 RC5
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 26
Historic down-hole information (continued)
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
12BER04 Railway 148 MGA94_54 52235392 645126835 27435 -60 131 RC5
12BER05 Railway 145 MGA94_54 52243947 645116784 29973 -60 124 RC5
12BER06 Railway 169 MGA94_54 52248137 645109135 29595 -60 118 RC5
12BER07 Railway 115 MGA94_54 52232372 645074875 27791 -60 144 RC5
12BER08 Railway 193 MGA94_54 52222079 64508118 27316 -60 129 RC5
12BER09 Railway 13975 MGA94_54 52210125 645088144 27591 -60 129 RC5
12BER10 Railway 151 MGA94_54 52195345 645071618 28449 -60 129 RC5
12BER11 Railway 193 MGA94_54 52273722 645137661 26583 -60 153 RC5
12BER12 Railway 111 MGA94_54 52290973 645151676 27736 -60 153 RC5
12BER13 Railway 205 MGA94_54 52288381 645155754 27103 -60 156 RC5
12BER14 Railway 151 MGA94_54 52312483 645163707 28836 -60 152 RC5
12BER15 Railway 109 MGA94_54 5233113 64518417 28395 -60 154 RC5
12BER16 Railway 115 MGA94_54 52299408 645159199 27595 -60 156 RC5
12BER17 Railway 1155 MGA94_54 5225165 645131494 2691 -60 153 RC5
12BER18 Railway 157 MGA94_54 52233275 645128131 27229 -60 129 RC5
12BER19 Railway 97 MGA94_54 52224055 645106715 27616 -60 135 RC5
12BER20 Railway 120 MGA94_54 52129169 644973363 27695 -60 165 RC5
13BED01 Railway 3492 MGA94_54 52248021 645109243 29601 -60 3007 DDH1
16DM01 Pyrite Hill 1616 MGA94_54 51841138 644959389 28269 -60 2155 DDH1
16DM02 Pyrite Hill 1834 MGA94_54 51852662 644926158 28418 -60 2850 DDH1
16DM03 Big Hill 1265 MGA94_54 5210371 644956749 28301 -60 1585 DDH1
16DM04 Big Hill 1054 MGA94_54 52081474 64494644 29618 -55 1285 DDH1
16DM05 Railway 2465 MGA94_54 5221037 645088187 27662 -60 1285 DDH1
16DM06 Railway 1604 MGA94_54 52291157 645151913 2785 -60 1525 DDH1
16DM07 Railway 2425 MGA94_54 52299526 645159826 27636 -60 1561 DDH1
16DM08 Railway 2585 MGA94_54 52235145 645127307 27385 -60 1309 DDH1
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 27
Down hole length and interception depth ndash 2017 holes
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THD01 34 123 89 982 94 87
including 35 41 6 1143 119 106
and 50 55 5 1311 131 115
and 81 122 41 1366 118 11
17THD02 47 134 87 911 88 92
including 48 77 29 1238 111 114
and 116 134 18 1199 110 111
17THD03 40 635 235 894 116 108
including 49 63 14 1076 143 124
17THD04 20 29 9 1033 86 872 96 24 703 88 81
17THD05 44 60 16 993 98 85
including 44 56 12 1094 109 94
71 76 5 840 64 6317THD06 39 85 46 1136 114 101
including 40 70 30 1227 122 104
and 76 85 9 1148 107 100
17THD07 15 128 113 879 81 88
including 47 55 8 1048 117 103
and 61 102 41 1452 125 123
142 152 10 704 6 102199 204 5 706 49 65
17THR001 27 63 36 1075 106 104
including 37 63 26 1280 119 115
75 84 9 755 91 139
17THR002 37 43 6 711 69 82
91 136 45 983 98 105
including 102 136 34 1190 117 118
17THR003 4 59 55 937 93 94
including 10 46 36 1212 116 110
17THR004 49 146 97 888 102 102
including 51 113 62 1051 114 113
17THR005 52 72 20 1053 128 126
including 53 63 10 1145 125 130
17THR006 14 74 60 754 86 87
including 17 44 27 1176 125 121
17THR007 5 22 17 837 0 125
including 12 19 7 1049 0 105
128 154 26 1034 114 115
including 128 146 18 1321 144 143
17THR008 37 78 41 1319 122 11217THR009 29 65 36 957 94 92including 34 60 26 1150 111 102
100 105 5 833 129 12717THR010 51 57 6 729 49 5317THR011 30 83 53 1116 12 109
including 31 62 31 1423 155 135
17THR012 50 117 67 748 75 86
including 59 67 8 1084 103 126
and 75 102 27 1120 110 113
172 177 5 725 64 64
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 28
Down hole length and interception depth ndash 2017 holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THR013 19 73 54 888 54 5
including 19 29 10 2576 88 77
17THR014 12 45 33 749 81 74
including 25 33 8 1148 113 94
17THR015 40 48 8 995 89 8117THR016 66 115 49 1096 129 134
including 66 81 15 1184 142 139
and 89 114 25 1183 134 141
17THR017 54 112 58 1383 132 128
including 56 85 29 2042 183 158
17THR018 47 63 16 1124 151 14117THR019 42 59 17 1032 107 114
17THR020 29 49 20 1067 116 115
including 29 36 7 1352 135 126
17THR021 44 64 20 1204 131 12717THR022 101 138 37 1152 107 1217THR023 91 137 46 1271 139 133
including 91 97 6 1953 187 166
and 114 125 11 2707 311 265
17THR027 29 54 25 1176 126 118
including 30 47 17 1382 141 125
Down hole length and interception depth ndash historic holes
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
11PHR02 74 114 40 875 108 116
11PHR03 150 162 12 750 83 96
11PHR03 163 190 27 732 106 119
11PHR03 206 227 21 988 117 13
11PHR04 124 172 48 1049 128 129
11PHR05 197 219 22 1138 107 133
11PHR06 104 135 31 854 83 115
11PHR06 155 171 16 1315 12 122
11PHR07 96 147 51 941 95 99
11PHR08 103 115 12 1417 139 148
11PHR08 126 144 18 1048 126 142
12BER01 115 139 24 768 72 74
12BER02 18 25 7 1062 103 93
12BER02 113 123 10 907 85 86
12BER04 41 90 49 1191 114 127
12BER04 121 126 5 1241 9 112
12BER05 33 39 6 1109 79 92
12BER05 65 76 11 721 63 66
12BER06 131 169 38 844 83 128
12BER07 38 43 5 704 10 101
12BER09 33 92 59 841 9 116
12BER11 31 62 31 738 84 126
12BER11 92 159 67 1061 10 131
12BER11 173 193 20 737 67 83
12BER12 27 81 54 1430 181 189
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 29
Down hole length and interception depth ndash historic holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
12BER13 21 42 21 761 74 91
12BER13 65 75 10 1882 204 216
12BER14 28 55 27 1013 125 129
12BER16 25 100 75 1008 106 107
12BER17 92 99 7 739 6 63
12BER18 117 157 40 1017 112 114
12BER19 34 56 22 1151 104 108
12BER19 68 75 7 780 61 6
12BER20 21 46 25 731 69 75
13BED01 266 2915 255 872 85 78
16DM01 96 147 51 851 91 86
16DM02 127 172 45 1118 138 136
16DM03 104 111 7 838 103 9
16DM04 91 99 8 887 91 84
16DM05 30 103 73 793 82 9
16DM05 199 211 12 830 251 221
16DM06 28 84 56 1280 162 167
16DM06 138 146 8 722 78 112
16DM07 35 60 25 1232 111 111
16DM07 71 104 33 1224 133 134
16DM08 76 100 24 1026 11 12
16DM08 165 177 12 921 122 126
17THD01 34 123 89 982 94 87
17THD02 47 134 87 911 88 92
17THD03 40 635 235 894 116 108
17THD04 20 29 9 1033 86 8
17THD04 72 96 24 703 88 81
17THD05 44 60 16 993 98 85
17THD05 71 76 5 840 64 63
17THD06 39 85 46 1136 114 101
17THD07 15 128 113 879 81 88
17THD07 142 152 10 704 6 102
17THD07 199 204 5 706 49 65
17THR001 27 63 36 1075 106 104
17THR001 75 84 9 755 91 139
17THR002 37 43 6 711 69 82
17THR002 91 136 45 983 98 105
17THR003 4 59 55 937 93 94
17THR004 49 146 97 888 102 102
17THR005 52 72 20 1053 128 126
17THR006 14 74 60 754 86 87
17THR007 5 22 17 837 0 125
17THR007 128 154 26 1034 114 115
17THR008 37 78 41 1319 122 112
17THR009 29 65 36 957 94 92
17THR009 100 105 5 833 129 127
17THR010 51 57 6 729 49 53
17THR011 30 83 53 1116 12 109
17THR012 50 117 67 748 75 86
17THR012 172 177 5 725 64 64
17THR013 19 73 54 888 54 5
17THR014 12 45 33 749 81 74
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 30
Down hole length and interception depth ndash historic holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THR015 40 48 8 995 89 81
17THR016 66 115 49 1096 129 134
17THR017 54 112 58 1383 132 128
17THR018 47 63 16 1124 151 141
17THR019 42 59 17 1032 32 114
17THR020 29 49 20 1067 116 115
17THR021 44 64 20 1204 131 127
17THR022 101 138 37 1152 107 12
17THR023 91 137 46 1271 139 133
17THR027 29 54 25 1176 126 118
67TH01 12344 20001 7657 979 0 0
70BH01 3962 5334 1372 3323 31 0
70BH01 6431 8443 2012 1203 95 0
70BH02 7406 8686 128 704 75 0
70TH02 78 841 61 1666 175 154
70TH02 871 1021 15 1661 8 72
70TH03 777 1295 518 1016 129 132
80BGH05 39 49 10 752 0 0
80BGH06 18 6804 5004 969 0 0
80BGH08 44 7815 3415 939 0 0
80PYH01 75 17 95 725 0 0
80PYH02 341 4825 1415 1121 0 0
80PYH03 23 35 12 711 0 0
80PYH04 3975 55 1525 735 0 0
80PYH05 367 65 283 1160 118 0
80PYH06 54 62 8 905 0 0
80PYH07 67 794 124 1113 125 0
80PYH10 4845 1374 8895 831 86 0
80PYH11 346 465 119 916 8 0
80PYH11 572 9105 3385 1239 106 0
80PYH12 302 365 63 791 102 0
80PYH12 8515 908 565 857 146 0
80PYH14 2518 2734 216 1252 131 0
93MGM02 85 160 75 941 85 0
98TC01 20 47 27 744 91 126
98TC01 48 71 23 917 119 164
98TC03 34 45 11 1480 55 6
98TC03 68 79 11 1095 43 42
98TC04 84 94 10 966 39 4
98TC04 107 133 26 771 77 82
98TC05 24 62 38 754 64 7
98TC06 66 72 6 727 104 111
98TC06 76 101 25 767 101 106
98TC07 35 46 11 1546 165 171
98TC07 61 82 21 728 91 94
98TC09 32 39 7 716 49 174
98TC09 82 107 25 732 6 67
98TC10 101 125 24 732 79 8
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 31
Criteria JORC Code Explanation Commentary
Data aggregation methods
a In reporting Exploration Results weighting averaging techniques maximum andor minimum grade truncations (eg cutting of high grades) and cut-off grades are usually Material and should be stated
a Where aggregate intercepts incorporate short lengths of high grade results and longer lengths of low grade results the procedure used for such aggregation should be stated and some typical examples of such aggregations should be shown in detail
a The assumptions used for any reporting of metal equivalent values should be clearly stated
Drilling a Drill hole intercept grades are typically reported as down-hole
length-weighted averages with any non-recovered sample within the reported intervals treated as no grade The cut-off used for selecting significant intersections is selected to reflect the overall tenor of mineralisation in most cases 500ppm cobalt
a No top cuts have been applied when calculating average grades for reported significant intersections
a No metal equivalent values are reported
Relationship between mineralis- ation widths and intercept lengths
a These relationships are particularly important in the reporting of Exploration Results
a If the geometry of the mineralisation with respect to the drillhole angle is known its nature should be reported
a If it is not known and only the down hole lengths are reported there should be a clear statement to this effect (eg lsquodown hole length true width not knownrsquo)
a Drill holes at the Thackaringa project are typically angled at 50deg or 60deg and drilled perpendicular to the mineralised trend with drilling orientations adjusted along strike to accommodate folded geological sequences
a Mineralisation at the Big Hill and Railway prospects is steeply dipping and consequently mineralised intersections will be greater than true width At Pyrite Hill mineralisation is gently dipping and mineralised intersections will be close to true width
a There is insufficient geological knowledge to accurately estimate true widths and as such all drill intersections are reported as down hole lengths
Diagrams a Appropriate maps and sections (with scales) and tabulations of intercepts should be included for any significant discovery being reported These should include but not be limited to a plan view of drill hole collar locations and appropriate sectional views
a Appropriate maps and sections are presented in the accompa-nying ASX release
Balanced reporting
a Where comprehensive reporting of all exploration results is not practicable representative reporting of both low and high grades andor widths should be practiced to avoid misleading reporting of Exploration Results
a Only mineralised drill hole intersections regarded as highly anomalous and of economic interest are reported The proportion of each hole represented by the reported intervals can be ascertained from the sum of the reported intervals divided by the total drill hole depth
a All assay results for drill holes included in the various Mineral Resource estimates have been considered and comprise results not necessarily regarded as anomalous
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 32
Criteria JORC Code Explanation Commentary
Other substantive exploration data
a Other exploration data if meaningful and material should be reported including (but not limited to) geological obser-vations geophysical survey results geochemical survey results bulk samples ndash size and method of treatment metallurgical test results bulk density groun d- water geotechnical and rock characteristics potential deleterious or contaminating substances
a No further exploration data is deemed material to the results presented in this release
Further work a The nature and scale of planned further work (eg tests for lateral extensions or depth extensions or large-scale step-out drilling)
a Diagrams clearly highlighting the areas of possible extensions including the main geological interpretations and future drilling areas provided this information is not commercially sensitive
a The nature and scale of planned further work will be determined following the completion of revised Mineral Resource estimation for the Thackaringa deposits scheduled for May 2017
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 12
Cobalt Blue BackgroundCobalt Blue (ldquoCOBrdquo) is an exploration company focussed on green energy technology and strategic development to upgrade the existing mineral resource at the Thackaringa Cobalt Project in New South Wales This strategic metal is in strong demand for new generation batteries particularly lithium-ion batteries now being widely used in clean energy systems
COB has entered into a farm-in joint venture agreement with Broken Hill Prospecting Limited (ldquoBPLrdquo) in which COB acquired an initial 51 interest in the Thackaringa Cobalt Project COB will undertake exploration and development programs at the Thackaring Cobalt Project and subject to the achievement of milestones will acquire 100 of the Thackaringa Cobalt Project
The Thackaringa Project 23 km west of Broken Hill and 400km by rail from Port Pirie consists of four granted tenements (EL6622 EL8143 ML86 and ML87) with total area of 63 km2 The main target for exploration is well known and contains documented large tonnage cobalt bearing pyrite deposits The project area is under-explored with the vast majority of historical exploration directed at or around the outcropping pyritic cobalt deposits at Pyrite Hill and Big Hill
Potential to extend the Mineral Resource at Pyrite Hill Big Hill Railway and the other prospects is high Numerous other prospects within COBrsquos tenement package are early stage and under-explored
Looking forward we would like our shareholders to keep in touch with COB updates and related news items which we will post on our website the ASX announcements platform as well as social media such as Facebook ( ) and LinkedIn ( ) Please donrsquot hesitate to join the lsquoCOB friendsrsquo on social media and also to join our newsletter mailing list at our website
Joe KaderavekChief Executive Officerjoekaderavekcobaltblueholdingscom(02) 9966 5629
Competent Person StatementThe information in this report that relates to exploration results Mineral Resources and Targets is based on information compiled by Mr Anthony Johnston BSc (Hons) who is a Member of the Australian Institute of Mining and Metallurgy and who is a non-executive director of Cobalt Blue Holdings Limited the Chief Executive Officer of Broken Hill Prospecting Limited and the Technical Manager of the Joint Venture Mr Johnston has sufficient experience which is relevant to the style of mineralisation and type of deposits under consideration and to the activity which he is undertaking to qualify as a Competent Person as defined in the 2004 amp 2012 Edition of the ldquoAustralasian Code for Reporting of Exploration Results Mineral Resources and Ore Reservesrdquo Mr Johnston consents to the inclusion in the announcement of the matters based on his information in the form and context that the information appears
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 13
Appendix ndash JORC Code 2012 Edition ndash Table 1 Section 1 ndash Sampling Techniques and Data(Criteria in this section apply to all succeeding sections)
Criteria JORC Code Explanation Commentary
Sampling techniques
a Nature and quality of sampling (eg cut channels random chips or specific specialised industry standard measurement tools appropriate to the minerals under investigation such as down-hole gamma sondes or handheld XRF instruments etc) These examples should not be taken as limiting the broad meaning of sampling
a Include reference to measures taken to ensure sample repre-sentivity and the appropriate calibration of any measurement tools or systems used
a Aspects of the determination of mineralisation that are Material to the Public Report
a In cases where lsquoindustry standardrsquo work has been done this would be relatively simple (eg lsquoreverse circulation drilling was used to obtain 1 m samples from which 3 kg was pulverised to produce a 30 g charge for fire assayrsquo) In other cases more explanation may be required such as where there is coarse gold that has inherent sampling problems Unusual commodities or mineralisation types (eg submarine nodules) may warrant disclosure of detailed information
Diamond Drilling (DD)Pre-1990a Diamond drilling was used to obtain core from which irregular
intervals reflecting visual mineralisation and geological logging were hand-split or sawn Samples were submitted for analysis using a mixed acid digestion and AAS methodology
Post-1990 a Diamond drilling (one drill hole) was used to obtain core from
which irregular intervals reflecting visual mineralisation and geological logging were sawn (quarter core for HQ) Samples were submitted for analysis using a mixed acid digestion and ICP-OES methodology
2016 Metallurgical Drillinga Eight HQ diameter diamond drill holes (DD) were drilled at
the Thackaringa project in late 2016 They will be used as metallurgical reference holes and to twin some of the previous reverse circulation percussion (RC) holes for QAQC and assay comparison between DD and RC There were two holes drilled at Pyrite Hill two at Big Hill and four at Railway
a Diamond drilling was used to obtain core from which regular (one-metre) intervals were sawn with
a one half core dispatched for analysis using a mixed acid digestion and ICP-AES methodology
a the other half was further sawn such that one quarter- core was sent for metallurgical test work and the other quarter-core retained for archival purposes
Historical Reverse Circulation Drilling a RC drilling was used to obtain a representative sample by means
of riffle splitting with samples submitted for analysis using the above-mentioned methodologies
a Pre-2000 drill samples were assayed for a small and variable suite of elements (sometimes only cobalt) The post-2000 drill samples (5095 samples) are all assayed by ICP-MS for a suite of 33 elements
2017 Diamond Drilling Program a This announcement summarises the results from approximately
23 of the 2017 diamond drilling program Fourteen HQ diameter diamond drill holes (DD) were assayed at the Thackaringa project They will be used as metallurgical reference holes and to twin some of the previous reverse circulation percussion (RC) holes for QAQC and assay comparison between DD and RC There were four holes drilled at Pyrite Hill two at Big Hill and 8 at Railway
a Diamond drilling (17THD01-03) was used to obtain core from which regular (one-metre) intervals were sawn with
a one half core dispatched for analysis using a mixed acid digestion and ICP-AES methodology
a the other half was retained for future metallurgical test work and archival purposes
a Diamond drilling (17THD04-14) was used to obtain core from which regular (one-metre) intervals were sawn with
a one quarter core dispatched for analysis using a mixed acid digestion and ICP-AES methodology
a the other three quarters was retained for future metallurgical test work and archival purposes
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 14
Criteria JORC Code Explanation Commentary
Sampling techniques (continued)
2017 RC drilling Program a This announcement summarises the results from approximately
23 of the 2017 RC drilling program Thirty eight (38) RC drill holes were drilled amp assayed at the Thackaringa project They will be used to infill the drill spacing of historic holes to allow a re-estimation of the existing Mineral Resource There were 12 holes drilled at Pyrite Hill three at Big Hill and 23 at Railway
a RC drilling was used to obtain a representative sample by means of riffle splitting with samples submitted for analysis using the above-mentioned methodologies
a The 2017 drill samples are all assayed by ICP-MS for a suite of 33 elements
Drilling techniques
a Drill type (eg core reverse circulation open-hole hammer rotary air blast auger Bangka sonic etc) and details (eg core diameter triple or standard tube depth of diamond tails face-sampling bit or other type whether core is oriented and if so by what method etc)
a The Thackaringa drilling database comprises a total of forty-eight (48) DD holes and eighty-one (81) RC drill holes Diamond drilling was predominantly completed with standard diameter conventional HQ and NQ utilising RC and percussion pre-collars to an average 25 metres (see Drill-hole Information for further details) Early (1960-1970) drill holes utilised HX ndash AX diameters dependent on drilling depth Reverse circulation drilling utilised standard drill-hole diameters (48rdquo-55rdquo) with a face sampling hammer
a During 2013 a single diamond drill hole (13BED01) was completed at the Railway deposit using a triple tube system with a HQ3 diameter
Year Drilling Metres
1967 1 diamond drill hole 3042
1970 4 diamond drill holes 4966
1980 18 diamond and 1 RC drill hole 171123
1993 2 diamond drill holes 250
1998 11 RC drill holes 109325
2011 11 RC drill holes 1811
2012 20 RC drill holes 287425
2013 1 diamond drill hole 3492
2016 8 diamond drill holes 14848
2017 14 diamond drill holes and 38 RC drill holes 6472
Total 48 diamond and 81 RC drill holes 1684653
a This ASX release describes assay results from seven (7) diamond drill holes and twenty-four (24) RC holes completed and assayed by April 2017 Commencement of that drilling program was reported to ASX by the company in April 2017
a Diamond drilling was completed using a triple tube system with a HQ3 diameter
a Holes were drilled at angles between 40 and 60 degrees from horizontal and the resulting core was oriented as part of the logging process
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 15
Criteria JORC Code Explanation Commentary
Drill sample recovery
a Method of recording and assessing core and chip sample recoveries and results assessed
a Measures taken to maximise sample recovery and ensure representative nature of the samples
a Whether a relationship exists between sample recovery and grade and whether sample bias may have occurred due to preferential lossgain of finecoarse material
Diamond Drilling
a Historical core recoveries were accurately quantified through measurement of actual core recovered versus drilled intervals
a Historical diamond drilling employed conventional drilling techniques while diamond drilling completed by Broken Hill Prospecting utilised a triple-tube system to maximise sample recovery
a Core recovery of 997 was achieved during completion of drill hole 13BED01
a Core recovery of 98 was achieved during the 2016 diamond drilling program
a Core recovery of 933 was achieved during the 2017 diamond drilling program
a No relationship between sample recovery and grade has been observed
Reverse Circulation Drilling
a Reverse circulation sample recoveries were visually estimated during drilling programs Where the estimated sample recovery was below 100 this was recorded in field logs by means of qualitative observation
a Reverse circulation drilling employed adequate air (using a compressor and booster) to maximise sample recovery
a No relationship between sample recovery and grade has been observed
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 16
Criteria JORC Code Explanation Commentary
Logging a Whether core and chip samples have been geologically and geotechnically logged to a level of detail to support appropriate Mineral Resource estimation mining studies and metallurgical studies
a Whether logging is qualitative or quantitative in nature Core (or costean channel etc) photography
a The total length and percentage of the relevant intersections logged
a A qualified geoscientist has logged all reported drill holes in their entirety This logging has been completed to a level of detail considered to accurately support Mineral Resource estimation and metallurgical studies The parameters logged include lithology alteration mineralisation and oxidation These parameters are both qualitative and quantitative in nature
a Diamond drilling completed in 2017 by BPL has been subject to geotechnical logging with parameters recorded including rock-quality designation (RQD) fracture frequency and hardness
a During 2013 a considerable amount of historical drilling was re-logged through review of available core stored at Broken Hill as well the re-interpretation of historical reports where core or percussion samples no longer exist A total of eight (8) diamond drill holes and sixteen (16) diamond drill holes with pre-collars were re-logged as detailed below
Hole ID Deposit Max Depth Hole TypePre-Collar Depth (m)
67TH01 Pyrite Hill 3042 DDH1 ndash
70TH02 Pyrite Hill 1486 DDH1 ndash
70TH03 Pyrite Hill 1414 DDH1 ndash
70BH01 Big Hill 1027 DDH1 ndash
70BH02 Big Hill 1039 DDH1 ndash
80PYH13 Pyrite Hill 77 DDH1 ndash
80PYH14 Pyrite Hill 3003 DDH1 ndash
80BGH09 Big Hill 1005 DDH1 ndash
80PYH01 Pyrite Hill 2453 PDDH2 6
80PYH02 Pyrite Hill 513 PDDH2 3358
80PYH04 Pyrite Hill 55 PDDH2 387
80PYH05 Pyrite Hill 936 PDDH2 18
80PYH06 Pyrite Hill 855 PDDH2 18
80PYH07 Pyrite Hill 945 PDDH2 12
80PYH08 Pyrite Hill 110 PDDH2 8
80PYH09 Pyrite Hill 1005 PDDH2 8
80PYH10 Pyrite Hill 1453 PDDH2 255
80PYH11 Pyrite Hill 1031 PDDH2 18
80PYH12 Pyrite Hill 1095 PDDH2 42
80BGH05 Big Hill 5486 RCDDH3 455
80BGH06 Big Hill 6804 RCDDH3 58
80BGH08 Big Hill 797 RCDDH3 699
93MGM01 Pyrite Hill 70 RDDH4 24
93MGM02 Pyrite Hill 180 RDDH4 48
1 Diamond drill hole2 Diamond drill hole with percussion pre-collar3 Diamond drill hole with reverse circulation pre-collar4 Diamond drill hole with rotary air blast pre-collar
a Litho-geochemistry has been used to verify geological logging where available for drilling completed by Broken Hill Prospecting post 2010
a Representative reference trays of chips from reverse circulation drilling completed post 2010 have been retained by Broken Hill Prospecting
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 17
Criteria JORC Code Explanation Commentary
Sub-sampling techniques and sample preparation
a If core whether cut or sawn and whether quarter half or all core taken
a If non-core whether riffled tube sampled rotary split etc and whether sampled wet or dry
a For all sample types the nature quality and appropriateness of the sample preparation technique
a Quality control procedures adopted for all sub-sampling stages to maximise representivity of samples
a Measures taken to ensure that the sampling is representative of the in situ material collected including for instance results for field duplicatesecond-half sampling
a Whether sample sizes are appropriate to the grain size of the material being sampled
Diamond Drilling (DD)Pre-1990a Core samples were hand-split or sawn with re-logging of available
historical core (see Logging) indicating a 7030 (retainedassayed) split was typical The variation of sample ratios noted are consid-ered consistent with the sub-sampling technique (hand-splitting)
a No second half samples were submitted for analysis a It is considered water used for core cutting is unprocessed and
unlikely to have introduced sample contamination a Procedures relating to the definition of the line of cutting or splitting
are not available It is expected that lsquostandard industry practicersquo for the period was applied to maximize sample representivity
Post-1990 a NQ drilling core was sawn with half core submitted for assay a HQ drilling core was sawn with quarter core submitted for assay a No second half samples were submitted for analysis a It is considered water used for core cutting is unprocessed and
unlikely to have introduced sample contamination a Procedures relating to the definition of the line of cutting or splitting
are not available It is expected that lsquostandard industry practicersquo for the period was applied to maximise sample representivity
2016 Metallurgical Drilling a All HQ drill core was sawn into halves with each half then re-sawn
to provide 4 lengths of quarter core for each interval a One half core was submitted for assay a One quarter core was submitted for metallurgical test work a One quarter core was retained for archive a It is considered that the water used for core cutting is most
unlikely to have introduced sample contamination a Sample sawing and processing for test work were undertaken
according to lsquostandard industry practicersquo to maximise sample representivity
2017 Diamond Drilling a All HQ drill core was sawn into halves with each half then re-sawn to
provide 4 lengths of quarter core for each interval
a One quarter ndash one half core was submitted for assay
a One quarter ndash three quarter core was retained for archive
a It is considered that the water used for core cutting is most unlikely to have introduced sample contamination
a Sample sawing and processing for test work were undertaken according to lsquostandard industry practicersquo to maximise sample representivity
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 18
Criteria JORC Code Explanation Commentary
Sub-sampling techniques and sample preparation (continued)
Historical Reverse Circulation Drilling a Sub-sampling of reverse circulationpercussion chips was
achieved using a cyclone with cone or riffle splitter a During drilling operations the sample cyclone and splitter were
regularly cleaned to prevent down hole sample contamination a Dry sampling was achieved with the use of adequate air using a
compressor and booster where groundwater was encountered a During reverse circulation drilling completed by Broken Hill
Prospecting duplicate samples were collected at the time of drilling These were obtained by spearing the bulk material held in the PVC sacks using a spear made of 40mm diameter PVC pipe three samples were speared through the full depth of the bulk material and these were combined to form one sample
a The Thackaringa drilling database includes a total of 139 field duplicates collected during reverse circulation drilling This reflects a ratio of approximately one field duplicate in every 32 samples (31) for drill holes where duplicates were collected (31 drill holes for 4469 metres) and an overall ratio of one field duplicate in every 42 samples (24) for all reverse circulation drill holes (43 drill holes for 58015 metres)
a Statistical analysis of field duplicates collected during drilling completed by Broken Hill Prospecting (119 duplicates representing 86 of all field duplicates) considered 18 elements of which only chromium lanthanum and titanium show some bias in the duplicate samples For cobalt the confidence limits were evenly placed either side of zero and the duplicates are deemed to be representative of the original samples
2017 Reverse Circulation Drilling a Sub-sampling of reverse circulationpercussion chips was achieved
using a riffle splitter
a During drilling operations the splitter was regularly cleaned to prevent down hole sample contamination
a Dry sampling was achieved with the use of adequate air using a compressor and booster where groundwater was encountered
a During reverse circulation drilling completed by Broken Hill Prospecting duplicate samples were collected at the time of drilling These were obtained by riffle splitting the remnant bulk sample following collection of the primary split
a Field duplicate samples were collected regularly during drilling (for every 18th sample on average)
a Assay results received to date include analysis of 120 field duplicate pairs from 24 RC drill holes
a A measure of the average precision of the sampling sample preparation and assaying methods given by the mean per cent difference (MPD) assay values of the duplicate pairs is summarised below Overall the sampling and assay precision for Co Fe and S at economically significant grades is regarded as reasonable
RC Field Duplicate Pairs
Co Cut-Off Count Co MPD S MPD Fe MPD
All 120 13 16 9
200ppm 52 13 11 10
500ppm 34 12 9 9
1000ppm 20 8 7 7
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 19
Criteria JORC Code Explanation Commentary
Quality of assay data and laboratory tests
a The nature quality and appropriateness of the assaying and laboratory procedures used and whether the technique is considered partial or total
a For geophysical tools spectrometers handheld XRF instruments etc the parameters used in determining the analysis including instrument make and model reading times calibrations factors applied and their derivation etc
a Nature of quality control proce-dures adopted (eg standards blanks duplicates external laboratory checks) and whether acceptable levels of accuracy (ie lack of bias) and precision have been established
a The nature and quality of all assaying and laboratory procedures employed for samples obtained through drilling (diamond and reverse circulation) are considered lsquoindustry standardrsquo for the respective periods
a The assay techniques employed for drilling (diamond and reverse circulation) include mixed acid digestion with ICP-OES and AAS finishes These methods are considered appropriate for the targeted mineralisation and regarded as a lsquonear totalrsquo digestion technique with resistive phases not expected to affect cobalt analyses
a All samples have been processed at independent commercial laboratories including AMDEL Australian Laboratory Services (ALS) Analabs and Genalysis
a All samples from drilling completed by Broken Hill Prospecting during 2011-2012 were assayed at ALS in Orange New South Wales All samples from drilling completed by Broken Hill Prospecting during 2016-2017 were assayed at ALS Adelaide South Australia ALS is a NATA Accredited Laboratory and qualifies for JASANZ ISO90012008 quality systems ALS maintains robust internal QAQC procedures (including analysis of standards repeats and blanks)
a To monitor the accuracy of assay results from the 2017 Thackaringa drilling CRM standards were included in the assay sample stream every 24 samples (on average) for RC chips and every 30 samples for diamond core The CRM samples were purchased from Ore Research amp Exploration Pty Ltd and the results are summarised below
Cobalt Sulphur Iron
OREAS Standard Count plusmn1SD plusmn2SD plusmn3SD plusmn3SD+ plusmn1SD plusmn2SD plusmn3SD plusmn3SD+ plusmn1SD plusmn2SD plusmn3SD plusmn3SD+
160 Low S Blank (28ppm Co) 12 10 ndash ndash 2 7 ndash ndash 5 6 2 2 2
162 Medium Grade (631ppm Co) 53 37 12 3 ndash 32 18 3 ndash 14 12 13 14
163 Low Grade (230ppm Co) 40 30 8 2 ndash 7 25 7 1 2 3 2 33
165 High Grade (2445ppm Co) 13 11 2 ndash ndash 7 5 1 ndash 1 5 2 5
166 High Grade (1970ppm Co) 35 26 8 ndash 1 27 6 ndash 2 9 5 5 16
153 114 30 5 3 80 54 11 8 32 27 24 70
75 20 3 2 52 35 7 5 21 18 16 46
Cobalt CRM Standards
Internal COB assay QAQC protocols cobalt performed well with 95 standard analyses falling within two standard deviations of the certified value and 75 within one SD No systematic out-of-specification trends were identified and there was no discernible tendency for a particular Co standard to preferentially assay either higher or lower than the certified Co concentration
Cobalt Blanks
A number of blanks were also submitted with the RC chip and diamond core samples mdash the OREAS160 CRM is essentially a low-sulphide blank with respect to cobalt (28ppm) and the results of assay of this standard are summarised in Table 1 In addition five quartz sand blanks were submitted bracketing very pyrite-rich intervals in diamond drill holes 17THD06 and 17THD07 Overall the quartz sand blanks returned a maximum of 69ppm Co 004 S and 065 Fe which are regarded as similar to background values and any contamination during sample preparation at the assay laboratory is likely to be immaterial to the final results
Based on the assay of standards and blanks with 95 of the Co results falling within two standard deviations of the certified value it is concluded that the assay results for Co are likely to be representative for the material submitted with no additional source of inaccuracy or bias identified
Sulphur CRM Standards
sulphur was reasonably well-performed with 87 of the total 153 standard analyses falling within two standard deviations of the certified value and 95 within 3SD
Iron CRM Standards
Iron analysis of standards showed poor accuracy with a tendency to assay low mdash 46 of the assays fall outside of 3 SD typically but not exclusively lower than the certified value
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 20
Criteria JORC Code Explanation Commentary
Verification of sampling and assaying
a The verification of significant intersections by either inde-pendent or alternative company personnel
a The use of twinned holes
a Documentation of primary data data entry procedures data verification data storage (physical and electronic) protocols
a Discuss any adjustment to assay data
a Historical drilling intersections were internally verified by personnel employed by previous explorers including CRAE Pty Limited Central Austin Pty Limited and Hunter Resources Broken Hill Prospecting has completed a systematic review of the related data
a The Thackaringa drilling database exists in electronic form as a Microsoft Access database Information related to individual drill holes is stored in digital files as extracted from historical reports (typically including location plan section logs photos surveys assays and petrology)
a Historical drilling data available in electronic form has been re-formatted and imported into the drilling database
a Quantitative historical drilling data including assays have been captured electronically during systematic data compilation and validation completed by Broken Hill Prospecting
a Samples returning assays below detection limits are assigned half detection limit values in the database
a All significant intersections are verified by the Companyrsquos Exploration Manager and independent geological consultant
Location of data points
a Accuracy and quality of surveys used to locate drill holes (collar and down-hole surveys) trenches mine workings and other locations used in Mineral Resource estimation
a Specification of the grid system used
a Quality and adequacy of topographic control
a Historical drill collars have been relocated and surveyed using a differential GPS (DGPS) In the instances where no collar could be located the position has been derived from georeferenced historical plans
a During systematic data validation completed in 2016 three drill holes at Big Hill were found to be incorrectly located One collar was located and surveyed by GPS and two were digitised from georeferenced historical plans (reported to the nearest metre) as the collars had been destroyed These corrections were captured in the Big Hill Mineral Resource estimate
a Down hole surveys using digital cameras were completed on all post 2000 drilling Down hole surveys for some earlier drilling were estimated from hole trace and section data where raw survey data was not reported
a All 2017 Thackaringa drill hole collars were located and surveyed with DGPS by an independent surveyor with reported accuracy of plusmn005m in horizontal and vertical measurement
a Downhole surveys using digital cameras were completed on all 2017 drill-holes
a All data is recorded in the GDA94 datum UTM Zone 54 (MGA54)
a 3D validation of drilling data has been completed by independent geological consultants to support detailed geological modelling in Microminetrade software
a The quality of topographic control is deemed adequate in consideration of the results presented in this release
Data spacing and distribution
a Data spacing for reporting of Exploration Results
a Whether the data spacing and distribution is sufficient to estab-lish the degree of geological and grade continuity appropriate for the Mineral Resource and Ore Reserve estimation procedure(s) and classifications applied
a Whether sample compositing has been applied
a The data density of existing drill holes at Thackaringa has been materially increased by the 2017 drilling program which was undertaken primarily to undertake infill drilling
a Detailed geological mapping supported by drill-hole data of sufficient spacing and distribution to establish a 3D geological model
a The level of geological and grade continuity is appropriate for the Mineral Resource estimation methodologies used and the classifications applied (being wholly Inferred Mineral Resources) Note that a recalculation of the Mineral Resource using 2017 drilling and assay data will commence in mid-2017
a No sample compositing has been applied to reported intersections
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 21
Criteria JORC Code Explanation Commentary
Orientation of data in relation to geological structure
a Whether the orientation of sampling achieves unbiased sampling of possible structures and the extent to which this is known considering the deposit type
a If the relationship between the drilling orientation and the orientation of key mineralised structures is considered to have introduced a sampling bias this should be assessed and reported if material
a The 2017 drill holes at the Thackaringa project were typically angled at -500 or -600 to the horizontal and drilled perpendicular to the mineralised trend with drilling orientations adjusted along strike to accommodate folded geological sequences
a Mineralisation at the Big Hill and Railway prospects is steeply dipping and consequently mineralised intersections will be greater than true width At Pyrite Hill mineralisation is gently dipping and mineralised intersections will be close to true width
a The drilling orientation is not considered to have introduced a sampling bias on assessment of the current geological interpretation
Sample security
a The measures taken to ensure sample security
a Sample security procedures are considered to be lsquoindustry standardrsquo for the respective periods
a Following recent drilling completed by BPL samples were trucked by an independent courier directly from Broken Hill to ALS Adelaide
a BPL consider that risks associated with sample security are limited given the nature of the targeted mineralisation
Audits or reviews
a The results of any audits or reviews of sampling techniques and data
a In late 2016 an independent validation of the Thackaringa drilling database was completed
a The data validation process consisted of systematic review of drilling data (collars assays and surveys) for identification of transcription errors
a Following review historical drill hole locations were also validated against georeferenced historical maps to confirm their location
a Three (3) drill holes at Big Hill were found to be incorrectly located One collar was located and surveyed by GPS and two were digitised from georeferenced historical plans (reported to the nearest metre) as the collars had been destroyed These corrections were captured in the Big Hill Mineral Resource estimate
a Total depths for all holes were checked against original reports
a Final 3D validation of drilling data has been completed by independent geological consultants to support detailed geological modelling in Microminetrade software
a Audits and reviews of QAQC results and procedures are further described in preceding sections of this table including Quality of assay data and laboratory tests Sub-sampling techniques and sample preparation and Logging
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 22
Section 2 Reporting of Exploration Results(Criteria listed in the preceding section also apply to this section)
Criteria JORC Code Explanation Commentary
Mineral tenement and land tenure status
a Type reference namenumber location and ownership including agreements or material issues with third parties such as joint ventures partnerships overriding royalties native title interests historical sites wilderness or national park and environmental settings
a The security of the tenure held at the time of reporting along with any known impediments to obtaining a licence to operate in the area
a The Thackaringa Cobalt project is located approximately 25 kilometres west-southwest of Broken Hill and comprises four tenements with a total area of 63 km2
Tenement
Registered amp Beneficial Holder Minerals Grant Date Expiry Date
Annual Expenditure
Commit-ment
EL6622 Broken Hill Prospecting Limited (BPL)
Group 1 30082006 29082017 $47000
EL 8143 BPL Group 1 26072013 26072017 $14000
ML86 BPL Cobalt iron nickel platinum sulphur
05111975 04112017 $75000
ML87 BPL Cobalt iron nickel platinum sulphur
05111975 04112017 $75000
a The project tenure is subject to a Farm-In agreement between Cobalt Blue Holdings Limited (COB) and Broken Hill Prospecting Limited (BPL) The nature of this agreement is detailed in the COB Replacement Prospectus (as released 4 January 2017)
a The nearest residence (Thackaringa Station) is located approxi-mately three kilometres west of EL6622
a EL6622 is intersected by the Transcontinental Railway the Barrier Highway is located the north of the licence boundaries
a The majority of the project tenure is covered by Western Lands Lease which is considered to extinguish native title interest However Native Title Determination NC9732 (Barkandji Traditional Owners 8) is current over the area and may be relevant to Crown Land parcels (eg public roads) within the project area
a The project tenure is more than 90 kilometres from the nearest National Park and or Wilderness Area (Kinchega National Park) and approximately 20 kilometres south of the nearest Water Supply Reserve (Umberumberka Reservoir Water Supply Reserve)
a The Company is not aware of any impediments to obtaining a licence to operate in the area
Exploration done by other parties
a Acknowledgment and appraisal of exploration by other parties
a A detailed and complete record of all exploration activities undertaken prior to the BPL 2016 drilling program is appended to the JORC Table 1 which forms part of the Cobalt Blue Prospectus Document available on the COB website
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 23
Criteria JORC Code Explanation Commentary
Geology a Deposit type geological setting and style of mineralisation
Regional Geological Setting a The Thackaringa project is located in a deformed and metamor-
phosed Proterozoic supracrustal succession named the Willyama Supergroup which crops out as several inliers in western New South Wales including the Broken Hill Block (Willis et al 1982)
a Exploration by BPL Limited has been focused on the discovery of cobaltiferous pyrite deposits and Broken Hill type base-metal mineralisation both of which are known from historical exploration in the district
a The project area covers portions of the Broken Hill and Thackaringa group successions which host the majority of mineralisation in the region including the Broken Hill base-metal deposit The Sundown Group suite is also present The extensive sequence of quartz-albite-plagioclase rock that hosts the cobaltiferous pyrite mineralisation is interpreted as belonging to the Himalaya Formation which is stratigraphically at the top of the Thackaringa Group
Local Geological Setting a The oldest rocks in the region belong to the Curnamona Craton
which outcrops on the Broken Hill and Euriowie blocks a The overlying Proterozoic rocks have been broadly subdivided
into three major groupings of which the oldest groups are the highly deformed metasediments and igneous derived rocks of the Thackaringa and Broken Hill groups They comprise a major part of the Willyama Supergroup and host the giant Broken Hill massive Pb-Zn-Ag sulphide ore body EL6622 is within the Broken Hill block of the Curnamona Craton
Mineralisation Style a The Thackaringa Mineral deposits (Pyrite Hill Big Hill and Railway)
are characterised by large tonnage cobaltiferous-pyrite minerali-sation hosted within siliceous albitic gneisses and schists of the Himalaya Formation
a Cobalt mineralisation exists within stratabound pyritic horizons where cobalt is present within the pyrite lattice Mineralogical studies have indicated the majority of cobalt (~85) is found in solid solution with primary pyrite (Henley 1998)
a A strong correlation between pyrite content and cobalt grade is observed
a The regional geological setting indicates additional mineralisation targets including
a Stratiform Broken Hill Type (BHT) Copper-Lead-Zinc-Silver deposits
a Copper-rich BHT deposits a Stratiform to stratabound Copper-Cobalt-Gold deposits a Epigenetic Gold and Base metal deposits
Drill hole Information
a A summary of all information mat- erial to the understanding of the exploration results including a tab- ulation of the following information for all Material drill holes
a easting and northing of the drill hole collar
a elevation or RL (Reduced Level ndash elevation above sea level in metres) of the drill hole collar
a dip and azimuth of the hole
a down hole length and interception depth
a See drill holle summaries below
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 24
Drill hole summaries
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
17THD01 Pyrite Hill 1242 MGA54 518382 6449551 28906 -40 222 DDH1
17THD02 Pyrite Hill 1497 MGA54 518475 6449445 29054 -40 258 DDH1
17THD03 Pyrite Hill 785 MGA54 518370 6449190 30328 -40 2851 DDH1
17THD04 Big Hill 1198 MGA54 521078 6449589 27841 -45 1551 DDH1
17THD05 Big Hill 995 MGA54 521669 6449889 2785 -40 131 DDH1
17THD06 Railway 1655 MGA54 521970 6450705 2872 -45 128 DDH1
17THD07 Railway 2746 MGA54 522569 6451282 27067 -45 1565 DDH1
17THD08 Railway 1325 MGA54 522784 6451280 268881 -45 326 DDH1
17THD09 Railway 1205 MGA54 522905 6451511 278471 -40 1525 DDH1
17THD10 Railway 842 MGA54 522992 6451569 279779 -45 130 DDH1
17THD11 Railway 1115 MGA54 523109 6451682 280847 -40 1605 DDH1
17THD12 Railway 1265 MGA54 522796 6451419 272936 -40 14075 DDH1
17THD13 Railway 1055 MGA54 522836 6451456 276747 -40 1385 DDH1
17THD14 Pyrite Hill 99 MGA54 518375 6449089 29425 -60 285 DDH1
17THR001 Railway 156 MGA54 522615 6451277 267561 -60 120 RC5
17THR002 Railway 160 MGA54 522573 6451299 268511 -60 120 RC5
17THR003 Railway 96 MGA54 522124 6450868 27739 -60 130 RC5
17THR004 Railway 150 MGA54 522387 6451319 271453 -60 120 RC5
17THR005 Railway 72 MGA54 522024 6450783 282154 -60 120 RC5
17THR006 Railway 114 MGA54 522049 6450780 28401 -58 125 RC5
17THR007 Railway 180 MGA54 521965 6450699 286585 -59 125 RC5
17THR008 Railway 132 MGA54 521917 6450562 291682 -56 105 RC5
17THR009 Railway 120 MGA54 521906 6450496 292751 -58 105 RC5
17THR010 Railway 72 MGA54 521959 6450398 286445 -56 285 RC5
17THR011 Railway 126 MGA54 522302 6451169 276812 -56 120 RC5
17THR012 Railway 180 MGA54 522440 6451304 274931 -58 173 RC5
17THR013 Big Hill 102 MGA54 521750 6449942 28489 -60 1305 RC5
17THR014 Big Hill 104 MGA54 521628 6449796 277545 -53 130 RC5
17THR015 Big Hill 108 MGA54 521793 6449918 284847 -58 310 RC5
17THR016 Pyrite Hill 138 MGA54 518446 6449209 290391 -57 283 RC5
17THR017 Pyrite Hill 120 MGA54 518449 6449263 293147 -56 2815 RC5
17THR018 Pyrite Hill 78 MGA54 518027 6449806 289567 -60 222 RC5
17THR019 Pyrite Hill 72 MGA54 518105 6449754 287701 -55 222 RC5
17THR020 Pyrite Hill 66 MGA54 518166 6449695 288685 -60 222 RC5
17THR021 Pyrite Hill 78 MGA54 518183 6449717 286007 -60 222 RC5
17THR022 Pyrite Hill 156 MGA54 518510 6449306 28682 -55 281 RC5
17THR023 Pyrite Hill 150 MGA54 518506 6449377 289481 -57 2645 RC5
17THR024 Pyrite Hill 150 MGA54 518457 6449498 288137 -595 2285 RC5
17THR025 Pyrite Hill 114 MGA54 518311 6449609 287463 -60 222 RC5
17THR026 Pyrite Hill 114 MGA54 518268 6449681 284164 -60 222 RC5
17THR027 Pyrite Hill 72 MGA54 518243 6449646 287176 -60 222 RC5
17THR028 Railway 150 MGA54 522457 6451167 300659 -60 350 RC5
17THR029 Railway 162 MGA54 522482 6451084 295964 -60 175 RC5
17THR030 Railway 138 MGA54 522783 6451423 270814 -55 140 RC5
17THR031 Railway 120 MGA54 522945 6451566 27619 -55 145 RC5
17THR032 Railway 132 MGA54 522819 6451473 273712 -53 140 RC5
17THR033 Railway 120 MGA54 522501 6451315 26963 -60 175 RC5
17THR034 Railway 132 MGA54 522321 6451214 275947 -55 127 RC5
17THR035 Railway 156 MGA54 522259 6451120 275749 -552 130 RC5
17THR036 Railway 92 MGA54 522186 6450998 275339 -612 130 RC5
17THR037 Railway 126 MGA54 522148 6450941 274202 -55 126 RC5
17THR038 Railway 168 MGA54 521927 6450619 289555 -55 108 RC5
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 25
Historic down-hole information
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
67TH01 Pyrite Hill 3042 MGA94_54 518564805 644946003 280643 -55 2606 DDH1
70TH02 Pyrite Hill 1486 MGA94_54 51827242 644968054 28408 -61 2186 DDH1
70TH03 Pyrite Hill 1414 MGA94_54 51844985 644921188 28981 -62 2836 DDH1
70BH01 Big Hill 1027 MGA94_54 52085056 64493085 28456 -47 3186 DDH1
70BH02 Big Hill 1039 MGA94_54 52078612 64492644 2801 -50 3186 DDH1
80PYH13 Pyrite Hill 77 MGA94_54 5183582 64490377 29035 -50 2807 DDH1
80PYH14 Pyrite Hill 3003 MGA94_54 51866118 644928762 27796 -60 2807 DDH1
80PYH03 Pyrite Hill 35 MGA94_54 5182515 64495699 2994 -60 2207 PDDH2 2280BGH09 Big Hill 1005 MGA94_54 52065743 644929252 27280 -50 1447 DDH1
80PYH01 Pyrite Hill 2453 MGA94_54 5182462 64495657 3011 -60 2027 PDDH2 680PYH02 Pyrite Hill 513 MGA94_54 5182607 64495742 2976 -60 2207 PDDH2 335880PYH04 Pyrite Hill 55 MGA94_54 51836655 644923174 30834 -60 2957 PDDH2 38780PYH05 Pyrite Hill 936 MGA94_54 51822697 644967819 28518 -49 2227 PDDH2 1880PYH06 Pyrite Hill 855 MGA94_54 51816348 64497573 28373 -544 2227 PDDH2 1880PYH07 Pyrite Hill 945 MGA94_54 51808406 644981836 28516 -55 2227 PDDH2 1280PYH08 Pyrite Hill 110 MGA94_54 51800954 644988543 28614 -60 2227 PDDH2 880PYH09 Pyrite Hill 1005 MGA94_54 5179174 644993176 28655 -485 2227 PDDH2 880PYH10 Pyrite Hill 1453 MGA94_54 51839296 644956596 28553 -50 2227 PDDH2 25580PYH11 Pyrite Hill 1031 MGA94_54 51844096 644932952 29725 -50 2807 PDDH2 1880PYH12 Pyrite Hill 1095 MGA94_54 51840728 644913731 29263 -50 2807 PDDH2 4280BGH05 Big Hill 5486 MGA94_54 52095535 644953441 28893 -60 1637 RCDDH3 45598TC01 Railway 100 MGA94_54 52275006 645133973 26727 -60 1589 RC5
98TC02 Railway 100 MGA94_54 52239241 645138683 26678 -60 1409 RC5
98TC03 Big Hill 84 MGA94_54 52081645 644936939 31305 -60 1359 RC5
98TC04 Big Hill 13825 MGA94_54 52086005 644945085 30409 -60 1409 RC5
98TC05 Big Hill 70 MGA94_54 520728 644932807 28863 -50 1229 RC5
98TC06 Big Hill 108 MGA94_54 520715 6449343 28513 -60 1259 RC5
98TC07 Big Hill 120 MGA94_54 52078597 644938821 29922 -50 1339 RC5
98TC08 Big Hill 90 MGA94_54 52080195 644947781 29101 -60 1509 RC5
98TC09 Big Hill 114 MGA94_54 52082221 644946079 29625 -60 1339 RC5
98TC10 Big Hill 134 MGA94_54 521018 6449576 2815 -50 1729 RC5
98TC11 Railway 35 MGA94_54 5224112 645137396 26701 -60 1329 RC5
80BGH06 Big Hill 6804 MGA94_54 520880 6449472 299 -60 1707 RCDDH3 5880BGH08 Big Hill 797 MGA94_54 52076879 644939093 29629 -60 1267 RCDDH3 69980BGH07 Big Hill 23 MGA94_54 52113656 6449599 27411 -60 1777 RC5
93MGM01 Pyrite Hill 70 MGA94_54 51818544 644971377 28628 -60 2228 RDDH4 2493MGM02 Pyrite Hill 180 MGA94_54 51851545 644945467 28479 -60 2588 RDDH4 4811PHR01 Pyrite Hill 150 MGA94_54 51843547 644907276 28534 -60 27906 RC5
11PHR02 Pyrite Hill 198 MGA94_54 51849992 644915931 28379 -60 27906 RC5
11PHR03 Pyrite Hill 240 MGA94_54 5185603 644918961 28026 -60 27906 RC5
11PHR04 Pyrite Hill 186 MGA94_54 51852863 6449257 28403 -60 27906 RC5
11PHR05 Pyrite Hill 234 MGA94_54 51858425 644939762 28022 -60 25906 RC5
11PHR06 Pyrite Hill 180 MGA94_54 5184909 644952259 28402 -60 23406 RC5
11PHR07 Pyrite Hill 174 MGA94_54 51841347 64495929 28286 -60 21906 RC5
11PHR08 Pyrite Hill 180 MGA94_54 51834274 644965585 28288 -60 21806 RC5
11PSR01 Pyrite Hill 59 MGA94_54 51874273 6448864 26838 -60 25806 RC5
11PSR02 Pyrite Hill 132 MGA94_54 51871938 644896001 27041 -60 25506 RC5
11PSR03 Pyrite Hill 78 MGA94_54 51868699 644905535 27279 -60 25506 RC5
12BER01 Railway 157 MGA94_54 52166731 644989323 27769 -60 141 RC5
12BER02 Railway 132 MGA94_54 52121267 644969067 27353 -60 162 RC5
12BER03 Railway 151 MGA94_54 52187901 645043547 28859 -60 102 RC5
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 26
Historic down-hole information (continued)
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
12BER04 Railway 148 MGA94_54 52235392 645126835 27435 -60 131 RC5
12BER05 Railway 145 MGA94_54 52243947 645116784 29973 -60 124 RC5
12BER06 Railway 169 MGA94_54 52248137 645109135 29595 -60 118 RC5
12BER07 Railway 115 MGA94_54 52232372 645074875 27791 -60 144 RC5
12BER08 Railway 193 MGA94_54 52222079 64508118 27316 -60 129 RC5
12BER09 Railway 13975 MGA94_54 52210125 645088144 27591 -60 129 RC5
12BER10 Railway 151 MGA94_54 52195345 645071618 28449 -60 129 RC5
12BER11 Railway 193 MGA94_54 52273722 645137661 26583 -60 153 RC5
12BER12 Railway 111 MGA94_54 52290973 645151676 27736 -60 153 RC5
12BER13 Railway 205 MGA94_54 52288381 645155754 27103 -60 156 RC5
12BER14 Railway 151 MGA94_54 52312483 645163707 28836 -60 152 RC5
12BER15 Railway 109 MGA94_54 5233113 64518417 28395 -60 154 RC5
12BER16 Railway 115 MGA94_54 52299408 645159199 27595 -60 156 RC5
12BER17 Railway 1155 MGA94_54 5225165 645131494 2691 -60 153 RC5
12BER18 Railway 157 MGA94_54 52233275 645128131 27229 -60 129 RC5
12BER19 Railway 97 MGA94_54 52224055 645106715 27616 -60 135 RC5
12BER20 Railway 120 MGA94_54 52129169 644973363 27695 -60 165 RC5
13BED01 Railway 3492 MGA94_54 52248021 645109243 29601 -60 3007 DDH1
16DM01 Pyrite Hill 1616 MGA94_54 51841138 644959389 28269 -60 2155 DDH1
16DM02 Pyrite Hill 1834 MGA94_54 51852662 644926158 28418 -60 2850 DDH1
16DM03 Big Hill 1265 MGA94_54 5210371 644956749 28301 -60 1585 DDH1
16DM04 Big Hill 1054 MGA94_54 52081474 64494644 29618 -55 1285 DDH1
16DM05 Railway 2465 MGA94_54 5221037 645088187 27662 -60 1285 DDH1
16DM06 Railway 1604 MGA94_54 52291157 645151913 2785 -60 1525 DDH1
16DM07 Railway 2425 MGA94_54 52299526 645159826 27636 -60 1561 DDH1
16DM08 Railway 2585 MGA94_54 52235145 645127307 27385 -60 1309 DDH1
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 27
Down hole length and interception depth ndash 2017 holes
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THD01 34 123 89 982 94 87
including 35 41 6 1143 119 106
and 50 55 5 1311 131 115
and 81 122 41 1366 118 11
17THD02 47 134 87 911 88 92
including 48 77 29 1238 111 114
and 116 134 18 1199 110 111
17THD03 40 635 235 894 116 108
including 49 63 14 1076 143 124
17THD04 20 29 9 1033 86 872 96 24 703 88 81
17THD05 44 60 16 993 98 85
including 44 56 12 1094 109 94
71 76 5 840 64 6317THD06 39 85 46 1136 114 101
including 40 70 30 1227 122 104
and 76 85 9 1148 107 100
17THD07 15 128 113 879 81 88
including 47 55 8 1048 117 103
and 61 102 41 1452 125 123
142 152 10 704 6 102199 204 5 706 49 65
17THR001 27 63 36 1075 106 104
including 37 63 26 1280 119 115
75 84 9 755 91 139
17THR002 37 43 6 711 69 82
91 136 45 983 98 105
including 102 136 34 1190 117 118
17THR003 4 59 55 937 93 94
including 10 46 36 1212 116 110
17THR004 49 146 97 888 102 102
including 51 113 62 1051 114 113
17THR005 52 72 20 1053 128 126
including 53 63 10 1145 125 130
17THR006 14 74 60 754 86 87
including 17 44 27 1176 125 121
17THR007 5 22 17 837 0 125
including 12 19 7 1049 0 105
128 154 26 1034 114 115
including 128 146 18 1321 144 143
17THR008 37 78 41 1319 122 11217THR009 29 65 36 957 94 92including 34 60 26 1150 111 102
100 105 5 833 129 12717THR010 51 57 6 729 49 5317THR011 30 83 53 1116 12 109
including 31 62 31 1423 155 135
17THR012 50 117 67 748 75 86
including 59 67 8 1084 103 126
and 75 102 27 1120 110 113
172 177 5 725 64 64
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 28
Down hole length and interception depth ndash 2017 holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THR013 19 73 54 888 54 5
including 19 29 10 2576 88 77
17THR014 12 45 33 749 81 74
including 25 33 8 1148 113 94
17THR015 40 48 8 995 89 8117THR016 66 115 49 1096 129 134
including 66 81 15 1184 142 139
and 89 114 25 1183 134 141
17THR017 54 112 58 1383 132 128
including 56 85 29 2042 183 158
17THR018 47 63 16 1124 151 14117THR019 42 59 17 1032 107 114
17THR020 29 49 20 1067 116 115
including 29 36 7 1352 135 126
17THR021 44 64 20 1204 131 12717THR022 101 138 37 1152 107 1217THR023 91 137 46 1271 139 133
including 91 97 6 1953 187 166
and 114 125 11 2707 311 265
17THR027 29 54 25 1176 126 118
including 30 47 17 1382 141 125
Down hole length and interception depth ndash historic holes
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
11PHR02 74 114 40 875 108 116
11PHR03 150 162 12 750 83 96
11PHR03 163 190 27 732 106 119
11PHR03 206 227 21 988 117 13
11PHR04 124 172 48 1049 128 129
11PHR05 197 219 22 1138 107 133
11PHR06 104 135 31 854 83 115
11PHR06 155 171 16 1315 12 122
11PHR07 96 147 51 941 95 99
11PHR08 103 115 12 1417 139 148
11PHR08 126 144 18 1048 126 142
12BER01 115 139 24 768 72 74
12BER02 18 25 7 1062 103 93
12BER02 113 123 10 907 85 86
12BER04 41 90 49 1191 114 127
12BER04 121 126 5 1241 9 112
12BER05 33 39 6 1109 79 92
12BER05 65 76 11 721 63 66
12BER06 131 169 38 844 83 128
12BER07 38 43 5 704 10 101
12BER09 33 92 59 841 9 116
12BER11 31 62 31 738 84 126
12BER11 92 159 67 1061 10 131
12BER11 173 193 20 737 67 83
12BER12 27 81 54 1430 181 189
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 29
Down hole length and interception depth ndash historic holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
12BER13 21 42 21 761 74 91
12BER13 65 75 10 1882 204 216
12BER14 28 55 27 1013 125 129
12BER16 25 100 75 1008 106 107
12BER17 92 99 7 739 6 63
12BER18 117 157 40 1017 112 114
12BER19 34 56 22 1151 104 108
12BER19 68 75 7 780 61 6
12BER20 21 46 25 731 69 75
13BED01 266 2915 255 872 85 78
16DM01 96 147 51 851 91 86
16DM02 127 172 45 1118 138 136
16DM03 104 111 7 838 103 9
16DM04 91 99 8 887 91 84
16DM05 30 103 73 793 82 9
16DM05 199 211 12 830 251 221
16DM06 28 84 56 1280 162 167
16DM06 138 146 8 722 78 112
16DM07 35 60 25 1232 111 111
16DM07 71 104 33 1224 133 134
16DM08 76 100 24 1026 11 12
16DM08 165 177 12 921 122 126
17THD01 34 123 89 982 94 87
17THD02 47 134 87 911 88 92
17THD03 40 635 235 894 116 108
17THD04 20 29 9 1033 86 8
17THD04 72 96 24 703 88 81
17THD05 44 60 16 993 98 85
17THD05 71 76 5 840 64 63
17THD06 39 85 46 1136 114 101
17THD07 15 128 113 879 81 88
17THD07 142 152 10 704 6 102
17THD07 199 204 5 706 49 65
17THR001 27 63 36 1075 106 104
17THR001 75 84 9 755 91 139
17THR002 37 43 6 711 69 82
17THR002 91 136 45 983 98 105
17THR003 4 59 55 937 93 94
17THR004 49 146 97 888 102 102
17THR005 52 72 20 1053 128 126
17THR006 14 74 60 754 86 87
17THR007 5 22 17 837 0 125
17THR007 128 154 26 1034 114 115
17THR008 37 78 41 1319 122 112
17THR009 29 65 36 957 94 92
17THR009 100 105 5 833 129 127
17THR010 51 57 6 729 49 53
17THR011 30 83 53 1116 12 109
17THR012 50 117 67 748 75 86
17THR012 172 177 5 725 64 64
17THR013 19 73 54 888 54 5
17THR014 12 45 33 749 81 74
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 30
Down hole length and interception depth ndash historic holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THR015 40 48 8 995 89 81
17THR016 66 115 49 1096 129 134
17THR017 54 112 58 1383 132 128
17THR018 47 63 16 1124 151 141
17THR019 42 59 17 1032 32 114
17THR020 29 49 20 1067 116 115
17THR021 44 64 20 1204 131 127
17THR022 101 138 37 1152 107 12
17THR023 91 137 46 1271 139 133
17THR027 29 54 25 1176 126 118
67TH01 12344 20001 7657 979 0 0
70BH01 3962 5334 1372 3323 31 0
70BH01 6431 8443 2012 1203 95 0
70BH02 7406 8686 128 704 75 0
70TH02 78 841 61 1666 175 154
70TH02 871 1021 15 1661 8 72
70TH03 777 1295 518 1016 129 132
80BGH05 39 49 10 752 0 0
80BGH06 18 6804 5004 969 0 0
80BGH08 44 7815 3415 939 0 0
80PYH01 75 17 95 725 0 0
80PYH02 341 4825 1415 1121 0 0
80PYH03 23 35 12 711 0 0
80PYH04 3975 55 1525 735 0 0
80PYH05 367 65 283 1160 118 0
80PYH06 54 62 8 905 0 0
80PYH07 67 794 124 1113 125 0
80PYH10 4845 1374 8895 831 86 0
80PYH11 346 465 119 916 8 0
80PYH11 572 9105 3385 1239 106 0
80PYH12 302 365 63 791 102 0
80PYH12 8515 908 565 857 146 0
80PYH14 2518 2734 216 1252 131 0
93MGM02 85 160 75 941 85 0
98TC01 20 47 27 744 91 126
98TC01 48 71 23 917 119 164
98TC03 34 45 11 1480 55 6
98TC03 68 79 11 1095 43 42
98TC04 84 94 10 966 39 4
98TC04 107 133 26 771 77 82
98TC05 24 62 38 754 64 7
98TC06 66 72 6 727 104 111
98TC06 76 101 25 767 101 106
98TC07 35 46 11 1546 165 171
98TC07 61 82 21 728 91 94
98TC09 32 39 7 716 49 174
98TC09 82 107 25 732 6 67
98TC10 101 125 24 732 79 8
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 31
Criteria JORC Code Explanation Commentary
Data aggregation methods
a In reporting Exploration Results weighting averaging techniques maximum andor minimum grade truncations (eg cutting of high grades) and cut-off grades are usually Material and should be stated
a Where aggregate intercepts incorporate short lengths of high grade results and longer lengths of low grade results the procedure used for such aggregation should be stated and some typical examples of such aggregations should be shown in detail
a The assumptions used for any reporting of metal equivalent values should be clearly stated
Drilling a Drill hole intercept grades are typically reported as down-hole
length-weighted averages with any non-recovered sample within the reported intervals treated as no grade The cut-off used for selecting significant intersections is selected to reflect the overall tenor of mineralisation in most cases 500ppm cobalt
a No top cuts have been applied when calculating average grades for reported significant intersections
a No metal equivalent values are reported
Relationship between mineralis- ation widths and intercept lengths
a These relationships are particularly important in the reporting of Exploration Results
a If the geometry of the mineralisation with respect to the drillhole angle is known its nature should be reported
a If it is not known and only the down hole lengths are reported there should be a clear statement to this effect (eg lsquodown hole length true width not knownrsquo)
a Drill holes at the Thackaringa project are typically angled at 50deg or 60deg and drilled perpendicular to the mineralised trend with drilling orientations adjusted along strike to accommodate folded geological sequences
a Mineralisation at the Big Hill and Railway prospects is steeply dipping and consequently mineralised intersections will be greater than true width At Pyrite Hill mineralisation is gently dipping and mineralised intersections will be close to true width
a There is insufficient geological knowledge to accurately estimate true widths and as such all drill intersections are reported as down hole lengths
Diagrams a Appropriate maps and sections (with scales) and tabulations of intercepts should be included for any significant discovery being reported These should include but not be limited to a plan view of drill hole collar locations and appropriate sectional views
a Appropriate maps and sections are presented in the accompa-nying ASX release
Balanced reporting
a Where comprehensive reporting of all exploration results is not practicable representative reporting of both low and high grades andor widths should be practiced to avoid misleading reporting of Exploration Results
a Only mineralised drill hole intersections regarded as highly anomalous and of economic interest are reported The proportion of each hole represented by the reported intervals can be ascertained from the sum of the reported intervals divided by the total drill hole depth
a All assay results for drill holes included in the various Mineral Resource estimates have been considered and comprise results not necessarily regarded as anomalous
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 32
Criteria JORC Code Explanation Commentary
Other substantive exploration data
a Other exploration data if meaningful and material should be reported including (but not limited to) geological obser-vations geophysical survey results geochemical survey results bulk samples ndash size and method of treatment metallurgical test results bulk density groun d- water geotechnical and rock characteristics potential deleterious or contaminating substances
a No further exploration data is deemed material to the results presented in this release
Further work a The nature and scale of planned further work (eg tests for lateral extensions or depth extensions or large-scale step-out drilling)
a Diagrams clearly highlighting the areas of possible extensions including the main geological interpretations and future drilling areas provided this information is not commercially sensitive
a The nature and scale of planned further work will be determined following the completion of revised Mineral Resource estimation for the Thackaringa deposits scheduled for May 2017
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 13
Appendix ndash JORC Code 2012 Edition ndash Table 1 Section 1 ndash Sampling Techniques and Data(Criteria in this section apply to all succeeding sections)
Criteria JORC Code Explanation Commentary
Sampling techniques
a Nature and quality of sampling (eg cut channels random chips or specific specialised industry standard measurement tools appropriate to the minerals under investigation such as down-hole gamma sondes or handheld XRF instruments etc) These examples should not be taken as limiting the broad meaning of sampling
a Include reference to measures taken to ensure sample repre-sentivity and the appropriate calibration of any measurement tools or systems used
a Aspects of the determination of mineralisation that are Material to the Public Report
a In cases where lsquoindustry standardrsquo work has been done this would be relatively simple (eg lsquoreverse circulation drilling was used to obtain 1 m samples from which 3 kg was pulverised to produce a 30 g charge for fire assayrsquo) In other cases more explanation may be required such as where there is coarse gold that has inherent sampling problems Unusual commodities or mineralisation types (eg submarine nodules) may warrant disclosure of detailed information
Diamond Drilling (DD)Pre-1990a Diamond drilling was used to obtain core from which irregular
intervals reflecting visual mineralisation and geological logging were hand-split or sawn Samples were submitted for analysis using a mixed acid digestion and AAS methodology
Post-1990 a Diamond drilling (one drill hole) was used to obtain core from
which irregular intervals reflecting visual mineralisation and geological logging were sawn (quarter core for HQ) Samples were submitted for analysis using a mixed acid digestion and ICP-OES methodology
2016 Metallurgical Drillinga Eight HQ diameter diamond drill holes (DD) were drilled at
the Thackaringa project in late 2016 They will be used as metallurgical reference holes and to twin some of the previous reverse circulation percussion (RC) holes for QAQC and assay comparison between DD and RC There were two holes drilled at Pyrite Hill two at Big Hill and four at Railway
a Diamond drilling was used to obtain core from which regular (one-metre) intervals were sawn with
a one half core dispatched for analysis using a mixed acid digestion and ICP-AES methodology
a the other half was further sawn such that one quarter- core was sent for metallurgical test work and the other quarter-core retained for archival purposes
Historical Reverse Circulation Drilling a RC drilling was used to obtain a representative sample by means
of riffle splitting with samples submitted for analysis using the above-mentioned methodologies
a Pre-2000 drill samples were assayed for a small and variable suite of elements (sometimes only cobalt) The post-2000 drill samples (5095 samples) are all assayed by ICP-MS for a suite of 33 elements
2017 Diamond Drilling Program a This announcement summarises the results from approximately
23 of the 2017 diamond drilling program Fourteen HQ diameter diamond drill holes (DD) were assayed at the Thackaringa project They will be used as metallurgical reference holes and to twin some of the previous reverse circulation percussion (RC) holes for QAQC and assay comparison between DD and RC There were four holes drilled at Pyrite Hill two at Big Hill and 8 at Railway
a Diamond drilling (17THD01-03) was used to obtain core from which regular (one-metre) intervals were sawn with
a one half core dispatched for analysis using a mixed acid digestion and ICP-AES methodology
a the other half was retained for future metallurgical test work and archival purposes
a Diamond drilling (17THD04-14) was used to obtain core from which regular (one-metre) intervals were sawn with
a one quarter core dispatched for analysis using a mixed acid digestion and ICP-AES methodology
a the other three quarters was retained for future metallurgical test work and archival purposes
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 14
Criteria JORC Code Explanation Commentary
Sampling techniques (continued)
2017 RC drilling Program a This announcement summarises the results from approximately
23 of the 2017 RC drilling program Thirty eight (38) RC drill holes were drilled amp assayed at the Thackaringa project They will be used to infill the drill spacing of historic holes to allow a re-estimation of the existing Mineral Resource There were 12 holes drilled at Pyrite Hill three at Big Hill and 23 at Railway
a RC drilling was used to obtain a representative sample by means of riffle splitting with samples submitted for analysis using the above-mentioned methodologies
a The 2017 drill samples are all assayed by ICP-MS for a suite of 33 elements
Drilling techniques
a Drill type (eg core reverse circulation open-hole hammer rotary air blast auger Bangka sonic etc) and details (eg core diameter triple or standard tube depth of diamond tails face-sampling bit or other type whether core is oriented and if so by what method etc)
a The Thackaringa drilling database comprises a total of forty-eight (48) DD holes and eighty-one (81) RC drill holes Diamond drilling was predominantly completed with standard diameter conventional HQ and NQ utilising RC and percussion pre-collars to an average 25 metres (see Drill-hole Information for further details) Early (1960-1970) drill holes utilised HX ndash AX diameters dependent on drilling depth Reverse circulation drilling utilised standard drill-hole diameters (48rdquo-55rdquo) with a face sampling hammer
a During 2013 a single diamond drill hole (13BED01) was completed at the Railway deposit using a triple tube system with a HQ3 diameter
Year Drilling Metres
1967 1 diamond drill hole 3042
1970 4 diamond drill holes 4966
1980 18 diamond and 1 RC drill hole 171123
1993 2 diamond drill holes 250
1998 11 RC drill holes 109325
2011 11 RC drill holes 1811
2012 20 RC drill holes 287425
2013 1 diamond drill hole 3492
2016 8 diamond drill holes 14848
2017 14 diamond drill holes and 38 RC drill holes 6472
Total 48 diamond and 81 RC drill holes 1684653
a This ASX release describes assay results from seven (7) diamond drill holes and twenty-four (24) RC holes completed and assayed by April 2017 Commencement of that drilling program was reported to ASX by the company in April 2017
a Diamond drilling was completed using a triple tube system with a HQ3 diameter
a Holes were drilled at angles between 40 and 60 degrees from horizontal and the resulting core was oriented as part of the logging process
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 15
Criteria JORC Code Explanation Commentary
Drill sample recovery
a Method of recording and assessing core and chip sample recoveries and results assessed
a Measures taken to maximise sample recovery and ensure representative nature of the samples
a Whether a relationship exists between sample recovery and grade and whether sample bias may have occurred due to preferential lossgain of finecoarse material
Diamond Drilling
a Historical core recoveries were accurately quantified through measurement of actual core recovered versus drilled intervals
a Historical diamond drilling employed conventional drilling techniques while diamond drilling completed by Broken Hill Prospecting utilised a triple-tube system to maximise sample recovery
a Core recovery of 997 was achieved during completion of drill hole 13BED01
a Core recovery of 98 was achieved during the 2016 diamond drilling program
a Core recovery of 933 was achieved during the 2017 diamond drilling program
a No relationship between sample recovery and grade has been observed
Reverse Circulation Drilling
a Reverse circulation sample recoveries were visually estimated during drilling programs Where the estimated sample recovery was below 100 this was recorded in field logs by means of qualitative observation
a Reverse circulation drilling employed adequate air (using a compressor and booster) to maximise sample recovery
a No relationship between sample recovery and grade has been observed
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 16
Criteria JORC Code Explanation Commentary
Logging a Whether core and chip samples have been geologically and geotechnically logged to a level of detail to support appropriate Mineral Resource estimation mining studies and metallurgical studies
a Whether logging is qualitative or quantitative in nature Core (or costean channel etc) photography
a The total length and percentage of the relevant intersections logged
a A qualified geoscientist has logged all reported drill holes in their entirety This logging has been completed to a level of detail considered to accurately support Mineral Resource estimation and metallurgical studies The parameters logged include lithology alteration mineralisation and oxidation These parameters are both qualitative and quantitative in nature
a Diamond drilling completed in 2017 by BPL has been subject to geotechnical logging with parameters recorded including rock-quality designation (RQD) fracture frequency and hardness
a During 2013 a considerable amount of historical drilling was re-logged through review of available core stored at Broken Hill as well the re-interpretation of historical reports where core or percussion samples no longer exist A total of eight (8) diamond drill holes and sixteen (16) diamond drill holes with pre-collars were re-logged as detailed below
Hole ID Deposit Max Depth Hole TypePre-Collar Depth (m)
67TH01 Pyrite Hill 3042 DDH1 ndash
70TH02 Pyrite Hill 1486 DDH1 ndash
70TH03 Pyrite Hill 1414 DDH1 ndash
70BH01 Big Hill 1027 DDH1 ndash
70BH02 Big Hill 1039 DDH1 ndash
80PYH13 Pyrite Hill 77 DDH1 ndash
80PYH14 Pyrite Hill 3003 DDH1 ndash
80BGH09 Big Hill 1005 DDH1 ndash
80PYH01 Pyrite Hill 2453 PDDH2 6
80PYH02 Pyrite Hill 513 PDDH2 3358
80PYH04 Pyrite Hill 55 PDDH2 387
80PYH05 Pyrite Hill 936 PDDH2 18
80PYH06 Pyrite Hill 855 PDDH2 18
80PYH07 Pyrite Hill 945 PDDH2 12
80PYH08 Pyrite Hill 110 PDDH2 8
80PYH09 Pyrite Hill 1005 PDDH2 8
80PYH10 Pyrite Hill 1453 PDDH2 255
80PYH11 Pyrite Hill 1031 PDDH2 18
80PYH12 Pyrite Hill 1095 PDDH2 42
80BGH05 Big Hill 5486 RCDDH3 455
80BGH06 Big Hill 6804 RCDDH3 58
80BGH08 Big Hill 797 RCDDH3 699
93MGM01 Pyrite Hill 70 RDDH4 24
93MGM02 Pyrite Hill 180 RDDH4 48
1 Diamond drill hole2 Diamond drill hole with percussion pre-collar3 Diamond drill hole with reverse circulation pre-collar4 Diamond drill hole with rotary air blast pre-collar
a Litho-geochemistry has been used to verify geological logging where available for drilling completed by Broken Hill Prospecting post 2010
a Representative reference trays of chips from reverse circulation drilling completed post 2010 have been retained by Broken Hill Prospecting
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 17
Criteria JORC Code Explanation Commentary
Sub-sampling techniques and sample preparation
a If core whether cut or sawn and whether quarter half or all core taken
a If non-core whether riffled tube sampled rotary split etc and whether sampled wet or dry
a For all sample types the nature quality and appropriateness of the sample preparation technique
a Quality control procedures adopted for all sub-sampling stages to maximise representivity of samples
a Measures taken to ensure that the sampling is representative of the in situ material collected including for instance results for field duplicatesecond-half sampling
a Whether sample sizes are appropriate to the grain size of the material being sampled
Diamond Drilling (DD)Pre-1990a Core samples were hand-split or sawn with re-logging of available
historical core (see Logging) indicating a 7030 (retainedassayed) split was typical The variation of sample ratios noted are consid-ered consistent with the sub-sampling technique (hand-splitting)
a No second half samples were submitted for analysis a It is considered water used for core cutting is unprocessed and
unlikely to have introduced sample contamination a Procedures relating to the definition of the line of cutting or splitting
are not available It is expected that lsquostandard industry practicersquo for the period was applied to maximize sample representivity
Post-1990 a NQ drilling core was sawn with half core submitted for assay a HQ drilling core was sawn with quarter core submitted for assay a No second half samples were submitted for analysis a It is considered water used for core cutting is unprocessed and
unlikely to have introduced sample contamination a Procedures relating to the definition of the line of cutting or splitting
are not available It is expected that lsquostandard industry practicersquo for the period was applied to maximise sample representivity
2016 Metallurgical Drilling a All HQ drill core was sawn into halves with each half then re-sawn
to provide 4 lengths of quarter core for each interval a One half core was submitted for assay a One quarter core was submitted for metallurgical test work a One quarter core was retained for archive a It is considered that the water used for core cutting is most
unlikely to have introduced sample contamination a Sample sawing and processing for test work were undertaken
according to lsquostandard industry practicersquo to maximise sample representivity
2017 Diamond Drilling a All HQ drill core was sawn into halves with each half then re-sawn to
provide 4 lengths of quarter core for each interval
a One quarter ndash one half core was submitted for assay
a One quarter ndash three quarter core was retained for archive
a It is considered that the water used for core cutting is most unlikely to have introduced sample contamination
a Sample sawing and processing for test work were undertaken according to lsquostandard industry practicersquo to maximise sample representivity
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 18
Criteria JORC Code Explanation Commentary
Sub-sampling techniques and sample preparation (continued)
Historical Reverse Circulation Drilling a Sub-sampling of reverse circulationpercussion chips was
achieved using a cyclone with cone or riffle splitter a During drilling operations the sample cyclone and splitter were
regularly cleaned to prevent down hole sample contamination a Dry sampling was achieved with the use of adequate air using a
compressor and booster where groundwater was encountered a During reverse circulation drilling completed by Broken Hill
Prospecting duplicate samples were collected at the time of drilling These were obtained by spearing the bulk material held in the PVC sacks using a spear made of 40mm diameter PVC pipe three samples were speared through the full depth of the bulk material and these were combined to form one sample
a The Thackaringa drilling database includes a total of 139 field duplicates collected during reverse circulation drilling This reflects a ratio of approximately one field duplicate in every 32 samples (31) for drill holes where duplicates were collected (31 drill holes for 4469 metres) and an overall ratio of one field duplicate in every 42 samples (24) for all reverse circulation drill holes (43 drill holes for 58015 metres)
a Statistical analysis of field duplicates collected during drilling completed by Broken Hill Prospecting (119 duplicates representing 86 of all field duplicates) considered 18 elements of which only chromium lanthanum and titanium show some bias in the duplicate samples For cobalt the confidence limits were evenly placed either side of zero and the duplicates are deemed to be representative of the original samples
2017 Reverse Circulation Drilling a Sub-sampling of reverse circulationpercussion chips was achieved
using a riffle splitter
a During drilling operations the splitter was regularly cleaned to prevent down hole sample contamination
a Dry sampling was achieved with the use of adequate air using a compressor and booster where groundwater was encountered
a During reverse circulation drilling completed by Broken Hill Prospecting duplicate samples were collected at the time of drilling These were obtained by riffle splitting the remnant bulk sample following collection of the primary split
a Field duplicate samples were collected regularly during drilling (for every 18th sample on average)
a Assay results received to date include analysis of 120 field duplicate pairs from 24 RC drill holes
a A measure of the average precision of the sampling sample preparation and assaying methods given by the mean per cent difference (MPD) assay values of the duplicate pairs is summarised below Overall the sampling and assay precision for Co Fe and S at economically significant grades is regarded as reasonable
RC Field Duplicate Pairs
Co Cut-Off Count Co MPD S MPD Fe MPD
All 120 13 16 9
200ppm 52 13 11 10
500ppm 34 12 9 9
1000ppm 20 8 7 7
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 19
Criteria JORC Code Explanation Commentary
Quality of assay data and laboratory tests
a The nature quality and appropriateness of the assaying and laboratory procedures used and whether the technique is considered partial or total
a For geophysical tools spectrometers handheld XRF instruments etc the parameters used in determining the analysis including instrument make and model reading times calibrations factors applied and their derivation etc
a Nature of quality control proce-dures adopted (eg standards blanks duplicates external laboratory checks) and whether acceptable levels of accuracy (ie lack of bias) and precision have been established
a The nature and quality of all assaying and laboratory procedures employed for samples obtained through drilling (diamond and reverse circulation) are considered lsquoindustry standardrsquo for the respective periods
a The assay techniques employed for drilling (diamond and reverse circulation) include mixed acid digestion with ICP-OES and AAS finishes These methods are considered appropriate for the targeted mineralisation and regarded as a lsquonear totalrsquo digestion technique with resistive phases not expected to affect cobalt analyses
a All samples have been processed at independent commercial laboratories including AMDEL Australian Laboratory Services (ALS) Analabs and Genalysis
a All samples from drilling completed by Broken Hill Prospecting during 2011-2012 were assayed at ALS in Orange New South Wales All samples from drilling completed by Broken Hill Prospecting during 2016-2017 were assayed at ALS Adelaide South Australia ALS is a NATA Accredited Laboratory and qualifies for JASANZ ISO90012008 quality systems ALS maintains robust internal QAQC procedures (including analysis of standards repeats and blanks)
a To monitor the accuracy of assay results from the 2017 Thackaringa drilling CRM standards were included in the assay sample stream every 24 samples (on average) for RC chips and every 30 samples for diamond core The CRM samples were purchased from Ore Research amp Exploration Pty Ltd and the results are summarised below
Cobalt Sulphur Iron
OREAS Standard Count plusmn1SD plusmn2SD plusmn3SD plusmn3SD+ plusmn1SD plusmn2SD plusmn3SD plusmn3SD+ plusmn1SD plusmn2SD plusmn3SD plusmn3SD+
160 Low S Blank (28ppm Co) 12 10 ndash ndash 2 7 ndash ndash 5 6 2 2 2
162 Medium Grade (631ppm Co) 53 37 12 3 ndash 32 18 3 ndash 14 12 13 14
163 Low Grade (230ppm Co) 40 30 8 2 ndash 7 25 7 1 2 3 2 33
165 High Grade (2445ppm Co) 13 11 2 ndash ndash 7 5 1 ndash 1 5 2 5
166 High Grade (1970ppm Co) 35 26 8 ndash 1 27 6 ndash 2 9 5 5 16
153 114 30 5 3 80 54 11 8 32 27 24 70
75 20 3 2 52 35 7 5 21 18 16 46
Cobalt CRM Standards
Internal COB assay QAQC protocols cobalt performed well with 95 standard analyses falling within two standard deviations of the certified value and 75 within one SD No systematic out-of-specification trends were identified and there was no discernible tendency for a particular Co standard to preferentially assay either higher or lower than the certified Co concentration
Cobalt Blanks
A number of blanks were also submitted with the RC chip and diamond core samples mdash the OREAS160 CRM is essentially a low-sulphide blank with respect to cobalt (28ppm) and the results of assay of this standard are summarised in Table 1 In addition five quartz sand blanks were submitted bracketing very pyrite-rich intervals in diamond drill holes 17THD06 and 17THD07 Overall the quartz sand blanks returned a maximum of 69ppm Co 004 S and 065 Fe which are regarded as similar to background values and any contamination during sample preparation at the assay laboratory is likely to be immaterial to the final results
Based on the assay of standards and blanks with 95 of the Co results falling within two standard deviations of the certified value it is concluded that the assay results for Co are likely to be representative for the material submitted with no additional source of inaccuracy or bias identified
Sulphur CRM Standards
sulphur was reasonably well-performed with 87 of the total 153 standard analyses falling within two standard deviations of the certified value and 95 within 3SD
Iron CRM Standards
Iron analysis of standards showed poor accuracy with a tendency to assay low mdash 46 of the assays fall outside of 3 SD typically but not exclusively lower than the certified value
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 20
Criteria JORC Code Explanation Commentary
Verification of sampling and assaying
a The verification of significant intersections by either inde-pendent or alternative company personnel
a The use of twinned holes
a Documentation of primary data data entry procedures data verification data storage (physical and electronic) protocols
a Discuss any adjustment to assay data
a Historical drilling intersections were internally verified by personnel employed by previous explorers including CRAE Pty Limited Central Austin Pty Limited and Hunter Resources Broken Hill Prospecting has completed a systematic review of the related data
a The Thackaringa drilling database exists in electronic form as a Microsoft Access database Information related to individual drill holes is stored in digital files as extracted from historical reports (typically including location plan section logs photos surveys assays and petrology)
a Historical drilling data available in electronic form has been re-formatted and imported into the drilling database
a Quantitative historical drilling data including assays have been captured electronically during systematic data compilation and validation completed by Broken Hill Prospecting
a Samples returning assays below detection limits are assigned half detection limit values in the database
a All significant intersections are verified by the Companyrsquos Exploration Manager and independent geological consultant
Location of data points
a Accuracy and quality of surveys used to locate drill holes (collar and down-hole surveys) trenches mine workings and other locations used in Mineral Resource estimation
a Specification of the grid system used
a Quality and adequacy of topographic control
a Historical drill collars have been relocated and surveyed using a differential GPS (DGPS) In the instances where no collar could be located the position has been derived from georeferenced historical plans
a During systematic data validation completed in 2016 three drill holes at Big Hill were found to be incorrectly located One collar was located and surveyed by GPS and two were digitised from georeferenced historical plans (reported to the nearest metre) as the collars had been destroyed These corrections were captured in the Big Hill Mineral Resource estimate
a Down hole surveys using digital cameras were completed on all post 2000 drilling Down hole surveys for some earlier drilling were estimated from hole trace and section data where raw survey data was not reported
a All 2017 Thackaringa drill hole collars were located and surveyed with DGPS by an independent surveyor with reported accuracy of plusmn005m in horizontal and vertical measurement
a Downhole surveys using digital cameras were completed on all 2017 drill-holes
a All data is recorded in the GDA94 datum UTM Zone 54 (MGA54)
a 3D validation of drilling data has been completed by independent geological consultants to support detailed geological modelling in Microminetrade software
a The quality of topographic control is deemed adequate in consideration of the results presented in this release
Data spacing and distribution
a Data spacing for reporting of Exploration Results
a Whether the data spacing and distribution is sufficient to estab-lish the degree of geological and grade continuity appropriate for the Mineral Resource and Ore Reserve estimation procedure(s) and classifications applied
a Whether sample compositing has been applied
a The data density of existing drill holes at Thackaringa has been materially increased by the 2017 drilling program which was undertaken primarily to undertake infill drilling
a Detailed geological mapping supported by drill-hole data of sufficient spacing and distribution to establish a 3D geological model
a The level of geological and grade continuity is appropriate for the Mineral Resource estimation methodologies used and the classifications applied (being wholly Inferred Mineral Resources) Note that a recalculation of the Mineral Resource using 2017 drilling and assay data will commence in mid-2017
a No sample compositing has been applied to reported intersections
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 21
Criteria JORC Code Explanation Commentary
Orientation of data in relation to geological structure
a Whether the orientation of sampling achieves unbiased sampling of possible structures and the extent to which this is known considering the deposit type
a If the relationship between the drilling orientation and the orientation of key mineralised structures is considered to have introduced a sampling bias this should be assessed and reported if material
a The 2017 drill holes at the Thackaringa project were typically angled at -500 or -600 to the horizontal and drilled perpendicular to the mineralised trend with drilling orientations adjusted along strike to accommodate folded geological sequences
a Mineralisation at the Big Hill and Railway prospects is steeply dipping and consequently mineralised intersections will be greater than true width At Pyrite Hill mineralisation is gently dipping and mineralised intersections will be close to true width
a The drilling orientation is not considered to have introduced a sampling bias on assessment of the current geological interpretation
Sample security
a The measures taken to ensure sample security
a Sample security procedures are considered to be lsquoindustry standardrsquo for the respective periods
a Following recent drilling completed by BPL samples were trucked by an independent courier directly from Broken Hill to ALS Adelaide
a BPL consider that risks associated with sample security are limited given the nature of the targeted mineralisation
Audits or reviews
a The results of any audits or reviews of sampling techniques and data
a In late 2016 an independent validation of the Thackaringa drilling database was completed
a The data validation process consisted of systematic review of drilling data (collars assays and surveys) for identification of transcription errors
a Following review historical drill hole locations were also validated against georeferenced historical maps to confirm their location
a Three (3) drill holes at Big Hill were found to be incorrectly located One collar was located and surveyed by GPS and two were digitised from georeferenced historical plans (reported to the nearest metre) as the collars had been destroyed These corrections were captured in the Big Hill Mineral Resource estimate
a Total depths for all holes were checked against original reports
a Final 3D validation of drilling data has been completed by independent geological consultants to support detailed geological modelling in Microminetrade software
a Audits and reviews of QAQC results and procedures are further described in preceding sections of this table including Quality of assay data and laboratory tests Sub-sampling techniques and sample preparation and Logging
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 22
Section 2 Reporting of Exploration Results(Criteria listed in the preceding section also apply to this section)
Criteria JORC Code Explanation Commentary
Mineral tenement and land tenure status
a Type reference namenumber location and ownership including agreements or material issues with third parties such as joint ventures partnerships overriding royalties native title interests historical sites wilderness or national park and environmental settings
a The security of the tenure held at the time of reporting along with any known impediments to obtaining a licence to operate in the area
a The Thackaringa Cobalt project is located approximately 25 kilometres west-southwest of Broken Hill and comprises four tenements with a total area of 63 km2
Tenement
Registered amp Beneficial Holder Minerals Grant Date Expiry Date
Annual Expenditure
Commit-ment
EL6622 Broken Hill Prospecting Limited (BPL)
Group 1 30082006 29082017 $47000
EL 8143 BPL Group 1 26072013 26072017 $14000
ML86 BPL Cobalt iron nickel platinum sulphur
05111975 04112017 $75000
ML87 BPL Cobalt iron nickel platinum sulphur
05111975 04112017 $75000
a The project tenure is subject to a Farm-In agreement between Cobalt Blue Holdings Limited (COB) and Broken Hill Prospecting Limited (BPL) The nature of this agreement is detailed in the COB Replacement Prospectus (as released 4 January 2017)
a The nearest residence (Thackaringa Station) is located approxi-mately three kilometres west of EL6622
a EL6622 is intersected by the Transcontinental Railway the Barrier Highway is located the north of the licence boundaries
a The majority of the project tenure is covered by Western Lands Lease which is considered to extinguish native title interest However Native Title Determination NC9732 (Barkandji Traditional Owners 8) is current over the area and may be relevant to Crown Land parcels (eg public roads) within the project area
a The project tenure is more than 90 kilometres from the nearest National Park and or Wilderness Area (Kinchega National Park) and approximately 20 kilometres south of the nearest Water Supply Reserve (Umberumberka Reservoir Water Supply Reserve)
a The Company is not aware of any impediments to obtaining a licence to operate in the area
Exploration done by other parties
a Acknowledgment and appraisal of exploration by other parties
a A detailed and complete record of all exploration activities undertaken prior to the BPL 2016 drilling program is appended to the JORC Table 1 which forms part of the Cobalt Blue Prospectus Document available on the COB website
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 23
Criteria JORC Code Explanation Commentary
Geology a Deposit type geological setting and style of mineralisation
Regional Geological Setting a The Thackaringa project is located in a deformed and metamor-
phosed Proterozoic supracrustal succession named the Willyama Supergroup which crops out as several inliers in western New South Wales including the Broken Hill Block (Willis et al 1982)
a Exploration by BPL Limited has been focused on the discovery of cobaltiferous pyrite deposits and Broken Hill type base-metal mineralisation both of which are known from historical exploration in the district
a The project area covers portions of the Broken Hill and Thackaringa group successions which host the majority of mineralisation in the region including the Broken Hill base-metal deposit The Sundown Group suite is also present The extensive sequence of quartz-albite-plagioclase rock that hosts the cobaltiferous pyrite mineralisation is interpreted as belonging to the Himalaya Formation which is stratigraphically at the top of the Thackaringa Group
Local Geological Setting a The oldest rocks in the region belong to the Curnamona Craton
which outcrops on the Broken Hill and Euriowie blocks a The overlying Proterozoic rocks have been broadly subdivided
into three major groupings of which the oldest groups are the highly deformed metasediments and igneous derived rocks of the Thackaringa and Broken Hill groups They comprise a major part of the Willyama Supergroup and host the giant Broken Hill massive Pb-Zn-Ag sulphide ore body EL6622 is within the Broken Hill block of the Curnamona Craton
Mineralisation Style a The Thackaringa Mineral deposits (Pyrite Hill Big Hill and Railway)
are characterised by large tonnage cobaltiferous-pyrite minerali-sation hosted within siliceous albitic gneisses and schists of the Himalaya Formation
a Cobalt mineralisation exists within stratabound pyritic horizons where cobalt is present within the pyrite lattice Mineralogical studies have indicated the majority of cobalt (~85) is found in solid solution with primary pyrite (Henley 1998)
a A strong correlation between pyrite content and cobalt grade is observed
a The regional geological setting indicates additional mineralisation targets including
a Stratiform Broken Hill Type (BHT) Copper-Lead-Zinc-Silver deposits
a Copper-rich BHT deposits a Stratiform to stratabound Copper-Cobalt-Gold deposits a Epigenetic Gold and Base metal deposits
Drill hole Information
a A summary of all information mat- erial to the understanding of the exploration results including a tab- ulation of the following information for all Material drill holes
a easting and northing of the drill hole collar
a elevation or RL (Reduced Level ndash elevation above sea level in metres) of the drill hole collar
a dip and azimuth of the hole
a down hole length and interception depth
a See drill holle summaries below
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 24
Drill hole summaries
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
17THD01 Pyrite Hill 1242 MGA54 518382 6449551 28906 -40 222 DDH1
17THD02 Pyrite Hill 1497 MGA54 518475 6449445 29054 -40 258 DDH1
17THD03 Pyrite Hill 785 MGA54 518370 6449190 30328 -40 2851 DDH1
17THD04 Big Hill 1198 MGA54 521078 6449589 27841 -45 1551 DDH1
17THD05 Big Hill 995 MGA54 521669 6449889 2785 -40 131 DDH1
17THD06 Railway 1655 MGA54 521970 6450705 2872 -45 128 DDH1
17THD07 Railway 2746 MGA54 522569 6451282 27067 -45 1565 DDH1
17THD08 Railway 1325 MGA54 522784 6451280 268881 -45 326 DDH1
17THD09 Railway 1205 MGA54 522905 6451511 278471 -40 1525 DDH1
17THD10 Railway 842 MGA54 522992 6451569 279779 -45 130 DDH1
17THD11 Railway 1115 MGA54 523109 6451682 280847 -40 1605 DDH1
17THD12 Railway 1265 MGA54 522796 6451419 272936 -40 14075 DDH1
17THD13 Railway 1055 MGA54 522836 6451456 276747 -40 1385 DDH1
17THD14 Pyrite Hill 99 MGA54 518375 6449089 29425 -60 285 DDH1
17THR001 Railway 156 MGA54 522615 6451277 267561 -60 120 RC5
17THR002 Railway 160 MGA54 522573 6451299 268511 -60 120 RC5
17THR003 Railway 96 MGA54 522124 6450868 27739 -60 130 RC5
17THR004 Railway 150 MGA54 522387 6451319 271453 -60 120 RC5
17THR005 Railway 72 MGA54 522024 6450783 282154 -60 120 RC5
17THR006 Railway 114 MGA54 522049 6450780 28401 -58 125 RC5
17THR007 Railway 180 MGA54 521965 6450699 286585 -59 125 RC5
17THR008 Railway 132 MGA54 521917 6450562 291682 -56 105 RC5
17THR009 Railway 120 MGA54 521906 6450496 292751 -58 105 RC5
17THR010 Railway 72 MGA54 521959 6450398 286445 -56 285 RC5
17THR011 Railway 126 MGA54 522302 6451169 276812 -56 120 RC5
17THR012 Railway 180 MGA54 522440 6451304 274931 -58 173 RC5
17THR013 Big Hill 102 MGA54 521750 6449942 28489 -60 1305 RC5
17THR014 Big Hill 104 MGA54 521628 6449796 277545 -53 130 RC5
17THR015 Big Hill 108 MGA54 521793 6449918 284847 -58 310 RC5
17THR016 Pyrite Hill 138 MGA54 518446 6449209 290391 -57 283 RC5
17THR017 Pyrite Hill 120 MGA54 518449 6449263 293147 -56 2815 RC5
17THR018 Pyrite Hill 78 MGA54 518027 6449806 289567 -60 222 RC5
17THR019 Pyrite Hill 72 MGA54 518105 6449754 287701 -55 222 RC5
17THR020 Pyrite Hill 66 MGA54 518166 6449695 288685 -60 222 RC5
17THR021 Pyrite Hill 78 MGA54 518183 6449717 286007 -60 222 RC5
17THR022 Pyrite Hill 156 MGA54 518510 6449306 28682 -55 281 RC5
17THR023 Pyrite Hill 150 MGA54 518506 6449377 289481 -57 2645 RC5
17THR024 Pyrite Hill 150 MGA54 518457 6449498 288137 -595 2285 RC5
17THR025 Pyrite Hill 114 MGA54 518311 6449609 287463 -60 222 RC5
17THR026 Pyrite Hill 114 MGA54 518268 6449681 284164 -60 222 RC5
17THR027 Pyrite Hill 72 MGA54 518243 6449646 287176 -60 222 RC5
17THR028 Railway 150 MGA54 522457 6451167 300659 -60 350 RC5
17THR029 Railway 162 MGA54 522482 6451084 295964 -60 175 RC5
17THR030 Railway 138 MGA54 522783 6451423 270814 -55 140 RC5
17THR031 Railway 120 MGA54 522945 6451566 27619 -55 145 RC5
17THR032 Railway 132 MGA54 522819 6451473 273712 -53 140 RC5
17THR033 Railway 120 MGA54 522501 6451315 26963 -60 175 RC5
17THR034 Railway 132 MGA54 522321 6451214 275947 -55 127 RC5
17THR035 Railway 156 MGA54 522259 6451120 275749 -552 130 RC5
17THR036 Railway 92 MGA54 522186 6450998 275339 -612 130 RC5
17THR037 Railway 126 MGA54 522148 6450941 274202 -55 126 RC5
17THR038 Railway 168 MGA54 521927 6450619 289555 -55 108 RC5
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 25
Historic down-hole information
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
67TH01 Pyrite Hill 3042 MGA94_54 518564805 644946003 280643 -55 2606 DDH1
70TH02 Pyrite Hill 1486 MGA94_54 51827242 644968054 28408 -61 2186 DDH1
70TH03 Pyrite Hill 1414 MGA94_54 51844985 644921188 28981 -62 2836 DDH1
70BH01 Big Hill 1027 MGA94_54 52085056 64493085 28456 -47 3186 DDH1
70BH02 Big Hill 1039 MGA94_54 52078612 64492644 2801 -50 3186 DDH1
80PYH13 Pyrite Hill 77 MGA94_54 5183582 64490377 29035 -50 2807 DDH1
80PYH14 Pyrite Hill 3003 MGA94_54 51866118 644928762 27796 -60 2807 DDH1
80PYH03 Pyrite Hill 35 MGA94_54 5182515 64495699 2994 -60 2207 PDDH2 2280BGH09 Big Hill 1005 MGA94_54 52065743 644929252 27280 -50 1447 DDH1
80PYH01 Pyrite Hill 2453 MGA94_54 5182462 64495657 3011 -60 2027 PDDH2 680PYH02 Pyrite Hill 513 MGA94_54 5182607 64495742 2976 -60 2207 PDDH2 335880PYH04 Pyrite Hill 55 MGA94_54 51836655 644923174 30834 -60 2957 PDDH2 38780PYH05 Pyrite Hill 936 MGA94_54 51822697 644967819 28518 -49 2227 PDDH2 1880PYH06 Pyrite Hill 855 MGA94_54 51816348 64497573 28373 -544 2227 PDDH2 1880PYH07 Pyrite Hill 945 MGA94_54 51808406 644981836 28516 -55 2227 PDDH2 1280PYH08 Pyrite Hill 110 MGA94_54 51800954 644988543 28614 -60 2227 PDDH2 880PYH09 Pyrite Hill 1005 MGA94_54 5179174 644993176 28655 -485 2227 PDDH2 880PYH10 Pyrite Hill 1453 MGA94_54 51839296 644956596 28553 -50 2227 PDDH2 25580PYH11 Pyrite Hill 1031 MGA94_54 51844096 644932952 29725 -50 2807 PDDH2 1880PYH12 Pyrite Hill 1095 MGA94_54 51840728 644913731 29263 -50 2807 PDDH2 4280BGH05 Big Hill 5486 MGA94_54 52095535 644953441 28893 -60 1637 RCDDH3 45598TC01 Railway 100 MGA94_54 52275006 645133973 26727 -60 1589 RC5
98TC02 Railway 100 MGA94_54 52239241 645138683 26678 -60 1409 RC5
98TC03 Big Hill 84 MGA94_54 52081645 644936939 31305 -60 1359 RC5
98TC04 Big Hill 13825 MGA94_54 52086005 644945085 30409 -60 1409 RC5
98TC05 Big Hill 70 MGA94_54 520728 644932807 28863 -50 1229 RC5
98TC06 Big Hill 108 MGA94_54 520715 6449343 28513 -60 1259 RC5
98TC07 Big Hill 120 MGA94_54 52078597 644938821 29922 -50 1339 RC5
98TC08 Big Hill 90 MGA94_54 52080195 644947781 29101 -60 1509 RC5
98TC09 Big Hill 114 MGA94_54 52082221 644946079 29625 -60 1339 RC5
98TC10 Big Hill 134 MGA94_54 521018 6449576 2815 -50 1729 RC5
98TC11 Railway 35 MGA94_54 5224112 645137396 26701 -60 1329 RC5
80BGH06 Big Hill 6804 MGA94_54 520880 6449472 299 -60 1707 RCDDH3 5880BGH08 Big Hill 797 MGA94_54 52076879 644939093 29629 -60 1267 RCDDH3 69980BGH07 Big Hill 23 MGA94_54 52113656 6449599 27411 -60 1777 RC5
93MGM01 Pyrite Hill 70 MGA94_54 51818544 644971377 28628 -60 2228 RDDH4 2493MGM02 Pyrite Hill 180 MGA94_54 51851545 644945467 28479 -60 2588 RDDH4 4811PHR01 Pyrite Hill 150 MGA94_54 51843547 644907276 28534 -60 27906 RC5
11PHR02 Pyrite Hill 198 MGA94_54 51849992 644915931 28379 -60 27906 RC5
11PHR03 Pyrite Hill 240 MGA94_54 5185603 644918961 28026 -60 27906 RC5
11PHR04 Pyrite Hill 186 MGA94_54 51852863 6449257 28403 -60 27906 RC5
11PHR05 Pyrite Hill 234 MGA94_54 51858425 644939762 28022 -60 25906 RC5
11PHR06 Pyrite Hill 180 MGA94_54 5184909 644952259 28402 -60 23406 RC5
11PHR07 Pyrite Hill 174 MGA94_54 51841347 64495929 28286 -60 21906 RC5
11PHR08 Pyrite Hill 180 MGA94_54 51834274 644965585 28288 -60 21806 RC5
11PSR01 Pyrite Hill 59 MGA94_54 51874273 6448864 26838 -60 25806 RC5
11PSR02 Pyrite Hill 132 MGA94_54 51871938 644896001 27041 -60 25506 RC5
11PSR03 Pyrite Hill 78 MGA94_54 51868699 644905535 27279 -60 25506 RC5
12BER01 Railway 157 MGA94_54 52166731 644989323 27769 -60 141 RC5
12BER02 Railway 132 MGA94_54 52121267 644969067 27353 -60 162 RC5
12BER03 Railway 151 MGA94_54 52187901 645043547 28859 -60 102 RC5
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 26
Historic down-hole information (continued)
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
12BER04 Railway 148 MGA94_54 52235392 645126835 27435 -60 131 RC5
12BER05 Railway 145 MGA94_54 52243947 645116784 29973 -60 124 RC5
12BER06 Railway 169 MGA94_54 52248137 645109135 29595 -60 118 RC5
12BER07 Railway 115 MGA94_54 52232372 645074875 27791 -60 144 RC5
12BER08 Railway 193 MGA94_54 52222079 64508118 27316 -60 129 RC5
12BER09 Railway 13975 MGA94_54 52210125 645088144 27591 -60 129 RC5
12BER10 Railway 151 MGA94_54 52195345 645071618 28449 -60 129 RC5
12BER11 Railway 193 MGA94_54 52273722 645137661 26583 -60 153 RC5
12BER12 Railway 111 MGA94_54 52290973 645151676 27736 -60 153 RC5
12BER13 Railway 205 MGA94_54 52288381 645155754 27103 -60 156 RC5
12BER14 Railway 151 MGA94_54 52312483 645163707 28836 -60 152 RC5
12BER15 Railway 109 MGA94_54 5233113 64518417 28395 -60 154 RC5
12BER16 Railway 115 MGA94_54 52299408 645159199 27595 -60 156 RC5
12BER17 Railway 1155 MGA94_54 5225165 645131494 2691 -60 153 RC5
12BER18 Railway 157 MGA94_54 52233275 645128131 27229 -60 129 RC5
12BER19 Railway 97 MGA94_54 52224055 645106715 27616 -60 135 RC5
12BER20 Railway 120 MGA94_54 52129169 644973363 27695 -60 165 RC5
13BED01 Railway 3492 MGA94_54 52248021 645109243 29601 -60 3007 DDH1
16DM01 Pyrite Hill 1616 MGA94_54 51841138 644959389 28269 -60 2155 DDH1
16DM02 Pyrite Hill 1834 MGA94_54 51852662 644926158 28418 -60 2850 DDH1
16DM03 Big Hill 1265 MGA94_54 5210371 644956749 28301 -60 1585 DDH1
16DM04 Big Hill 1054 MGA94_54 52081474 64494644 29618 -55 1285 DDH1
16DM05 Railway 2465 MGA94_54 5221037 645088187 27662 -60 1285 DDH1
16DM06 Railway 1604 MGA94_54 52291157 645151913 2785 -60 1525 DDH1
16DM07 Railway 2425 MGA94_54 52299526 645159826 27636 -60 1561 DDH1
16DM08 Railway 2585 MGA94_54 52235145 645127307 27385 -60 1309 DDH1
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 27
Down hole length and interception depth ndash 2017 holes
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THD01 34 123 89 982 94 87
including 35 41 6 1143 119 106
and 50 55 5 1311 131 115
and 81 122 41 1366 118 11
17THD02 47 134 87 911 88 92
including 48 77 29 1238 111 114
and 116 134 18 1199 110 111
17THD03 40 635 235 894 116 108
including 49 63 14 1076 143 124
17THD04 20 29 9 1033 86 872 96 24 703 88 81
17THD05 44 60 16 993 98 85
including 44 56 12 1094 109 94
71 76 5 840 64 6317THD06 39 85 46 1136 114 101
including 40 70 30 1227 122 104
and 76 85 9 1148 107 100
17THD07 15 128 113 879 81 88
including 47 55 8 1048 117 103
and 61 102 41 1452 125 123
142 152 10 704 6 102199 204 5 706 49 65
17THR001 27 63 36 1075 106 104
including 37 63 26 1280 119 115
75 84 9 755 91 139
17THR002 37 43 6 711 69 82
91 136 45 983 98 105
including 102 136 34 1190 117 118
17THR003 4 59 55 937 93 94
including 10 46 36 1212 116 110
17THR004 49 146 97 888 102 102
including 51 113 62 1051 114 113
17THR005 52 72 20 1053 128 126
including 53 63 10 1145 125 130
17THR006 14 74 60 754 86 87
including 17 44 27 1176 125 121
17THR007 5 22 17 837 0 125
including 12 19 7 1049 0 105
128 154 26 1034 114 115
including 128 146 18 1321 144 143
17THR008 37 78 41 1319 122 11217THR009 29 65 36 957 94 92including 34 60 26 1150 111 102
100 105 5 833 129 12717THR010 51 57 6 729 49 5317THR011 30 83 53 1116 12 109
including 31 62 31 1423 155 135
17THR012 50 117 67 748 75 86
including 59 67 8 1084 103 126
and 75 102 27 1120 110 113
172 177 5 725 64 64
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 28
Down hole length and interception depth ndash 2017 holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THR013 19 73 54 888 54 5
including 19 29 10 2576 88 77
17THR014 12 45 33 749 81 74
including 25 33 8 1148 113 94
17THR015 40 48 8 995 89 8117THR016 66 115 49 1096 129 134
including 66 81 15 1184 142 139
and 89 114 25 1183 134 141
17THR017 54 112 58 1383 132 128
including 56 85 29 2042 183 158
17THR018 47 63 16 1124 151 14117THR019 42 59 17 1032 107 114
17THR020 29 49 20 1067 116 115
including 29 36 7 1352 135 126
17THR021 44 64 20 1204 131 12717THR022 101 138 37 1152 107 1217THR023 91 137 46 1271 139 133
including 91 97 6 1953 187 166
and 114 125 11 2707 311 265
17THR027 29 54 25 1176 126 118
including 30 47 17 1382 141 125
Down hole length and interception depth ndash historic holes
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
11PHR02 74 114 40 875 108 116
11PHR03 150 162 12 750 83 96
11PHR03 163 190 27 732 106 119
11PHR03 206 227 21 988 117 13
11PHR04 124 172 48 1049 128 129
11PHR05 197 219 22 1138 107 133
11PHR06 104 135 31 854 83 115
11PHR06 155 171 16 1315 12 122
11PHR07 96 147 51 941 95 99
11PHR08 103 115 12 1417 139 148
11PHR08 126 144 18 1048 126 142
12BER01 115 139 24 768 72 74
12BER02 18 25 7 1062 103 93
12BER02 113 123 10 907 85 86
12BER04 41 90 49 1191 114 127
12BER04 121 126 5 1241 9 112
12BER05 33 39 6 1109 79 92
12BER05 65 76 11 721 63 66
12BER06 131 169 38 844 83 128
12BER07 38 43 5 704 10 101
12BER09 33 92 59 841 9 116
12BER11 31 62 31 738 84 126
12BER11 92 159 67 1061 10 131
12BER11 173 193 20 737 67 83
12BER12 27 81 54 1430 181 189
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 29
Down hole length and interception depth ndash historic holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
12BER13 21 42 21 761 74 91
12BER13 65 75 10 1882 204 216
12BER14 28 55 27 1013 125 129
12BER16 25 100 75 1008 106 107
12BER17 92 99 7 739 6 63
12BER18 117 157 40 1017 112 114
12BER19 34 56 22 1151 104 108
12BER19 68 75 7 780 61 6
12BER20 21 46 25 731 69 75
13BED01 266 2915 255 872 85 78
16DM01 96 147 51 851 91 86
16DM02 127 172 45 1118 138 136
16DM03 104 111 7 838 103 9
16DM04 91 99 8 887 91 84
16DM05 30 103 73 793 82 9
16DM05 199 211 12 830 251 221
16DM06 28 84 56 1280 162 167
16DM06 138 146 8 722 78 112
16DM07 35 60 25 1232 111 111
16DM07 71 104 33 1224 133 134
16DM08 76 100 24 1026 11 12
16DM08 165 177 12 921 122 126
17THD01 34 123 89 982 94 87
17THD02 47 134 87 911 88 92
17THD03 40 635 235 894 116 108
17THD04 20 29 9 1033 86 8
17THD04 72 96 24 703 88 81
17THD05 44 60 16 993 98 85
17THD05 71 76 5 840 64 63
17THD06 39 85 46 1136 114 101
17THD07 15 128 113 879 81 88
17THD07 142 152 10 704 6 102
17THD07 199 204 5 706 49 65
17THR001 27 63 36 1075 106 104
17THR001 75 84 9 755 91 139
17THR002 37 43 6 711 69 82
17THR002 91 136 45 983 98 105
17THR003 4 59 55 937 93 94
17THR004 49 146 97 888 102 102
17THR005 52 72 20 1053 128 126
17THR006 14 74 60 754 86 87
17THR007 5 22 17 837 0 125
17THR007 128 154 26 1034 114 115
17THR008 37 78 41 1319 122 112
17THR009 29 65 36 957 94 92
17THR009 100 105 5 833 129 127
17THR010 51 57 6 729 49 53
17THR011 30 83 53 1116 12 109
17THR012 50 117 67 748 75 86
17THR012 172 177 5 725 64 64
17THR013 19 73 54 888 54 5
17THR014 12 45 33 749 81 74
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 30
Down hole length and interception depth ndash historic holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THR015 40 48 8 995 89 81
17THR016 66 115 49 1096 129 134
17THR017 54 112 58 1383 132 128
17THR018 47 63 16 1124 151 141
17THR019 42 59 17 1032 32 114
17THR020 29 49 20 1067 116 115
17THR021 44 64 20 1204 131 127
17THR022 101 138 37 1152 107 12
17THR023 91 137 46 1271 139 133
17THR027 29 54 25 1176 126 118
67TH01 12344 20001 7657 979 0 0
70BH01 3962 5334 1372 3323 31 0
70BH01 6431 8443 2012 1203 95 0
70BH02 7406 8686 128 704 75 0
70TH02 78 841 61 1666 175 154
70TH02 871 1021 15 1661 8 72
70TH03 777 1295 518 1016 129 132
80BGH05 39 49 10 752 0 0
80BGH06 18 6804 5004 969 0 0
80BGH08 44 7815 3415 939 0 0
80PYH01 75 17 95 725 0 0
80PYH02 341 4825 1415 1121 0 0
80PYH03 23 35 12 711 0 0
80PYH04 3975 55 1525 735 0 0
80PYH05 367 65 283 1160 118 0
80PYH06 54 62 8 905 0 0
80PYH07 67 794 124 1113 125 0
80PYH10 4845 1374 8895 831 86 0
80PYH11 346 465 119 916 8 0
80PYH11 572 9105 3385 1239 106 0
80PYH12 302 365 63 791 102 0
80PYH12 8515 908 565 857 146 0
80PYH14 2518 2734 216 1252 131 0
93MGM02 85 160 75 941 85 0
98TC01 20 47 27 744 91 126
98TC01 48 71 23 917 119 164
98TC03 34 45 11 1480 55 6
98TC03 68 79 11 1095 43 42
98TC04 84 94 10 966 39 4
98TC04 107 133 26 771 77 82
98TC05 24 62 38 754 64 7
98TC06 66 72 6 727 104 111
98TC06 76 101 25 767 101 106
98TC07 35 46 11 1546 165 171
98TC07 61 82 21 728 91 94
98TC09 32 39 7 716 49 174
98TC09 82 107 25 732 6 67
98TC10 101 125 24 732 79 8
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 31
Criteria JORC Code Explanation Commentary
Data aggregation methods
a In reporting Exploration Results weighting averaging techniques maximum andor minimum grade truncations (eg cutting of high grades) and cut-off grades are usually Material and should be stated
a Where aggregate intercepts incorporate short lengths of high grade results and longer lengths of low grade results the procedure used for such aggregation should be stated and some typical examples of such aggregations should be shown in detail
a The assumptions used for any reporting of metal equivalent values should be clearly stated
Drilling a Drill hole intercept grades are typically reported as down-hole
length-weighted averages with any non-recovered sample within the reported intervals treated as no grade The cut-off used for selecting significant intersections is selected to reflect the overall tenor of mineralisation in most cases 500ppm cobalt
a No top cuts have been applied when calculating average grades for reported significant intersections
a No metal equivalent values are reported
Relationship between mineralis- ation widths and intercept lengths
a These relationships are particularly important in the reporting of Exploration Results
a If the geometry of the mineralisation with respect to the drillhole angle is known its nature should be reported
a If it is not known and only the down hole lengths are reported there should be a clear statement to this effect (eg lsquodown hole length true width not knownrsquo)
a Drill holes at the Thackaringa project are typically angled at 50deg or 60deg and drilled perpendicular to the mineralised trend with drilling orientations adjusted along strike to accommodate folded geological sequences
a Mineralisation at the Big Hill and Railway prospects is steeply dipping and consequently mineralised intersections will be greater than true width At Pyrite Hill mineralisation is gently dipping and mineralised intersections will be close to true width
a There is insufficient geological knowledge to accurately estimate true widths and as such all drill intersections are reported as down hole lengths
Diagrams a Appropriate maps and sections (with scales) and tabulations of intercepts should be included for any significant discovery being reported These should include but not be limited to a plan view of drill hole collar locations and appropriate sectional views
a Appropriate maps and sections are presented in the accompa-nying ASX release
Balanced reporting
a Where comprehensive reporting of all exploration results is not practicable representative reporting of both low and high grades andor widths should be practiced to avoid misleading reporting of Exploration Results
a Only mineralised drill hole intersections regarded as highly anomalous and of economic interest are reported The proportion of each hole represented by the reported intervals can be ascertained from the sum of the reported intervals divided by the total drill hole depth
a All assay results for drill holes included in the various Mineral Resource estimates have been considered and comprise results not necessarily regarded as anomalous
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 32
Criteria JORC Code Explanation Commentary
Other substantive exploration data
a Other exploration data if meaningful and material should be reported including (but not limited to) geological obser-vations geophysical survey results geochemical survey results bulk samples ndash size and method of treatment metallurgical test results bulk density groun d- water geotechnical and rock characteristics potential deleterious or contaminating substances
a No further exploration data is deemed material to the results presented in this release
Further work a The nature and scale of planned further work (eg tests for lateral extensions or depth extensions or large-scale step-out drilling)
a Diagrams clearly highlighting the areas of possible extensions including the main geological interpretations and future drilling areas provided this information is not commercially sensitive
a The nature and scale of planned further work will be determined following the completion of revised Mineral Resource estimation for the Thackaringa deposits scheduled for May 2017
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 14
Criteria JORC Code Explanation Commentary
Sampling techniques (continued)
2017 RC drilling Program a This announcement summarises the results from approximately
23 of the 2017 RC drilling program Thirty eight (38) RC drill holes were drilled amp assayed at the Thackaringa project They will be used to infill the drill spacing of historic holes to allow a re-estimation of the existing Mineral Resource There were 12 holes drilled at Pyrite Hill three at Big Hill and 23 at Railway
a RC drilling was used to obtain a representative sample by means of riffle splitting with samples submitted for analysis using the above-mentioned methodologies
a The 2017 drill samples are all assayed by ICP-MS for a suite of 33 elements
Drilling techniques
a Drill type (eg core reverse circulation open-hole hammer rotary air blast auger Bangka sonic etc) and details (eg core diameter triple or standard tube depth of diamond tails face-sampling bit or other type whether core is oriented and if so by what method etc)
a The Thackaringa drilling database comprises a total of forty-eight (48) DD holes and eighty-one (81) RC drill holes Diamond drilling was predominantly completed with standard diameter conventional HQ and NQ utilising RC and percussion pre-collars to an average 25 metres (see Drill-hole Information for further details) Early (1960-1970) drill holes utilised HX ndash AX diameters dependent on drilling depth Reverse circulation drilling utilised standard drill-hole diameters (48rdquo-55rdquo) with a face sampling hammer
a During 2013 a single diamond drill hole (13BED01) was completed at the Railway deposit using a triple tube system with a HQ3 diameter
Year Drilling Metres
1967 1 diamond drill hole 3042
1970 4 diamond drill holes 4966
1980 18 diamond and 1 RC drill hole 171123
1993 2 diamond drill holes 250
1998 11 RC drill holes 109325
2011 11 RC drill holes 1811
2012 20 RC drill holes 287425
2013 1 diamond drill hole 3492
2016 8 diamond drill holes 14848
2017 14 diamond drill holes and 38 RC drill holes 6472
Total 48 diamond and 81 RC drill holes 1684653
a This ASX release describes assay results from seven (7) diamond drill holes and twenty-four (24) RC holes completed and assayed by April 2017 Commencement of that drilling program was reported to ASX by the company in April 2017
a Diamond drilling was completed using a triple tube system with a HQ3 diameter
a Holes were drilled at angles between 40 and 60 degrees from horizontal and the resulting core was oriented as part of the logging process
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 15
Criteria JORC Code Explanation Commentary
Drill sample recovery
a Method of recording and assessing core and chip sample recoveries and results assessed
a Measures taken to maximise sample recovery and ensure representative nature of the samples
a Whether a relationship exists between sample recovery and grade and whether sample bias may have occurred due to preferential lossgain of finecoarse material
Diamond Drilling
a Historical core recoveries were accurately quantified through measurement of actual core recovered versus drilled intervals
a Historical diamond drilling employed conventional drilling techniques while diamond drilling completed by Broken Hill Prospecting utilised a triple-tube system to maximise sample recovery
a Core recovery of 997 was achieved during completion of drill hole 13BED01
a Core recovery of 98 was achieved during the 2016 diamond drilling program
a Core recovery of 933 was achieved during the 2017 diamond drilling program
a No relationship between sample recovery and grade has been observed
Reverse Circulation Drilling
a Reverse circulation sample recoveries were visually estimated during drilling programs Where the estimated sample recovery was below 100 this was recorded in field logs by means of qualitative observation
a Reverse circulation drilling employed adequate air (using a compressor and booster) to maximise sample recovery
a No relationship between sample recovery and grade has been observed
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 16
Criteria JORC Code Explanation Commentary
Logging a Whether core and chip samples have been geologically and geotechnically logged to a level of detail to support appropriate Mineral Resource estimation mining studies and metallurgical studies
a Whether logging is qualitative or quantitative in nature Core (or costean channel etc) photography
a The total length and percentage of the relevant intersections logged
a A qualified geoscientist has logged all reported drill holes in their entirety This logging has been completed to a level of detail considered to accurately support Mineral Resource estimation and metallurgical studies The parameters logged include lithology alteration mineralisation and oxidation These parameters are both qualitative and quantitative in nature
a Diamond drilling completed in 2017 by BPL has been subject to geotechnical logging with parameters recorded including rock-quality designation (RQD) fracture frequency and hardness
a During 2013 a considerable amount of historical drilling was re-logged through review of available core stored at Broken Hill as well the re-interpretation of historical reports where core or percussion samples no longer exist A total of eight (8) diamond drill holes and sixteen (16) diamond drill holes with pre-collars were re-logged as detailed below
Hole ID Deposit Max Depth Hole TypePre-Collar Depth (m)
67TH01 Pyrite Hill 3042 DDH1 ndash
70TH02 Pyrite Hill 1486 DDH1 ndash
70TH03 Pyrite Hill 1414 DDH1 ndash
70BH01 Big Hill 1027 DDH1 ndash
70BH02 Big Hill 1039 DDH1 ndash
80PYH13 Pyrite Hill 77 DDH1 ndash
80PYH14 Pyrite Hill 3003 DDH1 ndash
80BGH09 Big Hill 1005 DDH1 ndash
80PYH01 Pyrite Hill 2453 PDDH2 6
80PYH02 Pyrite Hill 513 PDDH2 3358
80PYH04 Pyrite Hill 55 PDDH2 387
80PYH05 Pyrite Hill 936 PDDH2 18
80PYH06 Pyrite Hill 855 PDDH2 18
80PYH07 Pyrite Hill 945 PDDH2 12
80PYH08 Pyrite Hill 110 PDDH2 8
80PYH09 Pyrite Hill 1005 PDDH2 8
80PYH10 Pyrite Hill 1453 PDDH2 255
80PYH11 Pyrite Hill 1031 PDDH2 18
80PYH12 Pyrite Hill 1095 PDDH2 42
80BGH05 Big Hill 5486 RCDDH3 455
80BGH06 Big Hill 6804 RCDDH3 58
80BGH08 Big Hill 797 RCDDH3 699
93MGM01 Pyrite Hill 70 RDDH4 24
93MGM02 Pyrite Hill 180 RDDH4 48
1 Diamond drill hole2 Diamond drill hole with percussion pre-collar3 Diamond drill hole with reverse circulation pre-collar4 Diamond drill hole with rotary air blast pre-collar
a Litho-geochemistry has been used to verify geological logging where available for drilling completed by Broken Hill Prospecting post 2010
a Representative reference trays of chips from reverse circulation drilling completed post 2010 have been retained by Broken Hill Prospecting
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 17
Criteria JORC Code Explanation Commentary
Sub-sampling techniques and sample preparation
a If core whether cut or sawn and whether quarter half or all core taken
a If non-core whether riffled tube sampled rotary split etc and whether sampled wet or dry
a For all sample types the nature quality and appropriateness of the sample preparation technique
a Quality control procedures adopted for all sub-sampling stages to maximise representivity of samples
a Measures taken to ensure that the sampling is representative of the in situ material collected including for instance results for field duplicatesecond-half sampling
a Whether sample sizes are appropriate to the grain size of the material being sampled
Diamond Drilling (DD)Pre-1990a Core samples were hand-split or sawn with re-logging of available
historical core (see Logging) indicating a 7030 (retainedassayed) split was typical The variation of sample ratios noted are consid-ered consistent with the sub-sampling technique (hand-splitting)
a No second half samples were submitted for analysis a It is considered water used for core cutting is unprocessed and
unlikely to have introduced sample contamination a Procedures relating to the definition of the line of cutting or splitting
are not available It is expected that lsquostandard industry practicersquo for the period was applied to maximize sample representivity
Post-1990 a NQ drilling core was sawn with half core submitted for assay a HQ drilling core was sawn with quarter core submitted for assay a No second half samples were submitted for analysis a It is considered water used for core cutting is unprocessed and
unlikely to have introduced sample contamination a Procedures relating to the definition of the line of cutting or splitting
are not available It is expected that lsquostandard industry practicersquo for the period was applied to maximise sample representivity
2016 Metallurgical Drilling a All HQ drill core was sawn into halves with each half then re-sawn
to provide 4 lengths of quarter core for each interval a One half core was submitted for assay a One quarter core was submitted for metallurgical test work a One quarter core was retained for archive a It is considered that the water used for core cutting is most
unlikely to have introduced sample contamination a Sample sawing and processing for test work were undertaken
according to lsquostandard industry practicersquo to maximise sample representivity
2017 Diamond Drilling a All HQ drill core was sawn into halves with each half then re-sawn to
provide 4 lengths of quarter core for each interval
a One quarter ndash one half core was submitted for assay
a One quarter ndash three quarter core was retained for archive
a It is considered that the water used for core cutting is most unlikely to have introduced sample contamination
a Sample sawing and processing for test work were undertaken according to lsquostandard industry practicersquo to maximise sample representivity
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 18
Criteria JORC Code Explanation Commentary
Sub-sampling techniques and sample preparation (continued)
Historical Reverse Circulation Drilling a Sub-sampling of reverse circulationpercussion chips was
achieved using a cyclone with cone or riffle splitter a During drilling operations the sample cyclone and splitter were
regularly cleaned to prevent down hole sample contamination a Dry sampling was achieved with the use of adequate air using a
compressor and booster where groundwater was encountered a During reverse circulation drilling completed by Broken Hill
Prospecting duplicate samples were collected at the time of drilling These were obtained by spearing the bulk material held in the PVC sacks using a spear made of 40mm diameter PVC pipe three samples were speared through the full depth of the bulk material and these were combined to form one sample
a The Thackaringa drilling database includes a total of 139 field duplicates collected during reverse circulation drilling This reflects a ratio of approximately one field duplicate in every 32 samples (31) for drill holes where duplicates were collected (31 drill holes for 4469 metres) and an overall ratio of one field duplicate in every 42 samples (24) for all reverse circulation drill holes (43 drill holes for 58015 metres)
a Statistical analysis of field duplicates collected during drilling completed by Broken Hill Prospecting (119 duplicates representing 86 of all field duplicates) considered 18 elements of which only chromium lanthanum and titanium show some bias in the duplicate samples For cobalt the confidence limits were evenly placed either side of zero and the duplicates are deemed to be representative of the original samples
2017 Reverse Circulation Drilling a Sub-sampling of reverse circulationpercussion chips was achieved
using a riffle splitter
a During drilling operations the splitter was regularly cleaned to prevent down hole sample contamination
a Dry sampling was achieved with the use of adequate air using a compressor and booster where groundwater was encountered
a During reverse circulation drilling completed by Broken Hill Prospecting duplicate samples were collected at the time of drilling These were obtained by riffle splitting the remnant bulk sample following collection of the primary split
a Field duplicate samples were collected regularly during drilling (for every 18th sample on average)
a Assay results received to date include analysis of 120 field duplicate pairs from 24 RC drill holes
a A measure of the average precision of the sampling sample preparation and assaying methods given by the mean per cent difference (MPD) assay values of the duplicate pairs is summarised below Overall the sampling and assay precision for Co Fe and S at economically significant grades is regarded as reasonable
RC Field Duplicate Pairs
Co Cut-Off Count Co MPD S MPD Fe MPD
All 120 13 16 9
200ppm 52 13 11 10
500ppm 34 12 9 9
1000ppm 20 8 7 7
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 19
Criteria JORC Code Explanation Commentary
Quality of assay data and laboratory tests
a The nature quality and appropriateness of the assaying and laboratory procedures used and whether the technique is considered partial or total
a For geophysical tools spectrometers handheld XRF instruments etc the parameters used in determining the analysis including instrument make and model reading times calibrations factors applied and their derivation etc
a Nature of quality control proce-dures adopted (eg standards blanks duplicates external laboratory checks) and whether acceptable levels of accuracy (ie lack of bias) and precision have been established
a The nature and quality of all assaying and laboratory procedures employed for samples obtained through drilling (diamond and reverse circulation) are considered lsquoindustry standardrsquo for the respective periods
a The assay techniques employed for drilling (diamond and reverse circulation) include mixed acid digestion with ICP-OES and AAS finishes These methods are considered appropriate for the targeted mineralisation and regarded as a lsquonear totalrsquo digestion technique with resistive phases not expected to affect cobalt analyses
a All samples have been processed at independent commercial laboratories including AMDEL Australian Laboratory Services (ALS) Analabs and Genalysis
a All samples from drilling completed by Broken Hill Prospecting during 2011-2012 were assayed at ALS in Orange New South Wales All samples from drilling completed by Broken Hill Prospecting during 2016-2017 were assayed at ALS Adelaide South Australia ALS is a NATA Accredited Laboratory and qualifies for JASANZ ISO90012008 quality systems ALS maintains robust internal QAQC procedures (including analysis of standards repeats and blanks)
a To monitor the accuracy of assay results from the 2017 Thackaringa drilling CRM standards were included in the assay sample stream every 24 samples (on average) for RC chips and every 30 samples for diamond core The CRM samples were purchased from Ore Research amp Exploration Pty Ltd and the results are summarised below
Cobalt Sulphur Iron
OREAS Standard Count plusmn1SD plusmn2SD plusmn3SD plusmn3SD+ plusmn1SD plusmn2SD plusmn3SD plusmn3SD+ plusmn1SD plusmn2SD plusmn3SD plusmn3SD+
160 Low S Blank (28ppm Co) 12 10 ndash ndash 2 7 ndash ndash 5 6 2 2 2
162 Medium Grade (631ppm Co) 53 37 12 3 ndash 32 18 3 ndash 14 12 13 14
163 Low Grade (230ppm Co) 40 30 8 2 ndash 7 25 7 1 2 3 2 33
165 High Grade (2445ppm Co) 13 11 2 ndash ndash 7 5 1 ndash 1 5 2 5
166 High Grade (1970ppm Co) 35 26 8 ndash 1 27 6 ndash 2 9 5 5 16
153 114 30 5 3 80 54 11 8 32 27 24 70
75 20 3 2 52 35 7 5 21 18 16 46
Cobalt CRM Standards
Internal COB assay QAQC protocols cobalt performed well with 95 standard analyses falling within two standard deviations of the certified value and 75 within one SD No systematic out-of-specification trends were identified and there was no discernible tendency for a particular Co standard to preferentially assay either higher or lower than the certified Co concentration
Cobalt Blanks
A number of blanks were also submitted with the RC chip and diamond core samples mdash the OREAS160 CRM is essentially a low-sulphide blank with respect to cobalt (28ppm) and the results of assay of this standard are summarised in Table 1 In addition five quartz sand blanks were submitted bracketing very pyrite-rich intervals in diamond drill holes 17THD06 and 17THD07 Overall the quartz sand blanks returned a maximum of 69ppm Co 004 S and 065 Fe which are regarded as similar to background values and any contamination during sample preparation at the assay laboratory is likely to be immaterial to the final results
Based on the assay of standards and blanks with 95 of the Co results falling within two standard deviations of the certified value it is concluded that the assay results for Co are likely to be representative for the material submitted with no additional source of inaccuracy or bias identified
Sulphur CRM Standards
sulphur was reasonably well-performed with 87 of the total 153 standard analyses falling within two standard deviations of the certified value and 95 within 3SD
Iron CRM Standards
Iron analysis of standards showed poor accuracy with a tendency to assay low mdash 46 of the assays fall outside of 3 SD typically but not exclusively lower than the certified value
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 20
Criteria JORC Code Explanation Commentary
Verification of sampling and assaying
a The verification of significant intersections by either inde-pendent or alternative company personnel
a The use of twinned holes
a Documentation of primary data data entry procedures data verification data storage (physical and electronic) protocols
a Discuss any adjustment to assay data
a Historical drilling intersections were internally verified by personnel employed by previous explorers including CRAE Pty Limited Central Austin Pty Limited and Hunter Resources Broken Hill Prospecting has completed a systematic review of the related data
a The Thackaringa drilling database exists in electronic form as a Microsoft Access database Information related to individual drill holes is stored in digital files as extracted from historical reports (typically including location plan section logs photos surveys assays and petrology)
a Historical drilling data available in electronic form has been re-formatted and imported into the drilling database
a Quantitative historical drilling data including assays have been captured electronically during systematic data compilation and validation completed by Broken Hill Prospecting
a Samples returning assays below detection limits are assigned half detection limit values in the database
a All significant intersections are verified by the Companyrsquos Exploration Manager and independent geological consultant
Location of data points
a Accuracy and quality of surveys used to locate drill holes (collar and down-hole surveys) trenches mine workings and other locations used in Mineral Resource estimation
a Specification of the grid system used
a Quality and adequacy of topographic control
a Historical drill collars have been relocated and surveyed using a differential GPS (DGPS) In the instances where no collar could be located the position has been derived from georeferenced historical plans
a During systematic data validation completed in 2016 three drill holes at Big Hill were found to be incorrectly located One collar was located and surveyed by GPS and two were digitised from georeferenced historical plans (reported to the nearest metre) as the collars had been destroyed These corrections were captured in the Big Hill Mineral Resource estimate
a Down hole surveys using digital cameras were completed on all post 2000 drilling Down hole surveys for some earlier drilling were estimated from hole trace and section data where raw survey data was not reported
a All 2017 Thackaringa drill hole collars were located and surveyed with DGPS by an independent surveyor with reported accuracy of plusmn005m in horizontal and vertical measurement
a Downhole surveys using digital cameras were completed on all 2017 drill-holes
a All data is recorded in the GDA94 datum UTM Zone 54 (MGA54)
a 3D validation of drilling data has been completed by independent geological consultants to support detailed geological modelling in Microminetrade software
a The quality of topographic control is deemed adequate in consideration of the results presented in this release
Data spacing and distribution
a Data spacing for reporting of Exploration Results
a Whether the data spacing and distribution is sufficient to estab-lish the degree of geological and grade continuity appropriate for the Mineral Resource and Ore Reserve estimation procedure(s) and classifications applied
a Whether sample compositing has been applied
a The data density of existing drill holes at Thackaringa has been materially increased by the 2017 drilling program which was undertaken primarily to undertake infill drilling
a Detailed geological mapping supported by drill-hole data of sufficient spacing and distribution to establish a 3D geological model
a The level of geological and grade continuity is appropriate for the Mineral Resource estimation methodologies used and the classifications applied (being wholly Inferred Mineral Resources) Note that a recalculation of the Mineral Resource using 2017 drilling and assay data will commence in mid-2017
a No sample compositing has been applied to reported intersections
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 21
Criteria JORC Code Explanation Commentary
Orientation of data in relation to geological structure
a Whether the orientation of sampling achieves unbiased sampling of possible structures and the extent to which this is known considering the deposit type
a If the relationship between the drilling orientation and the orientation of key mineralised structures is considered to have introduced a sampling bias this should be assessed and reported if material
a The 2017 drill holes at the Thackaringa project were typically angled at -500 or -600 to the horizontal and drilled perpendicular to the mineralised trend with drilling orientations adjusted along strike to accommodate folded geological sequences
a Mineralisation at the Big Hill and Railway prospects is steeply dipping and consequently mineralised intersections will be greater than true width At Pyrite Hill mineralisation is gently dipping and mineralised intersections will be close to true width
a The drilling orientation is not considered to have introduced a sampling bias on assessment of the current geological interpretation
Sample security
a The measures taken to ensure sample security
a Sample security procedures are considered to be lsquoindustry standardrsquo for the respective periods
a Following recent drilling completed by BPL samples were trucked by an independent courier directly from Broken Hill to ALS Adelaide
a BPL consider that risks associated with sample security are limited given the nature of the targeted mineralisation
Audits or reviews
a The results of any audits or reviews of sampling techniques and data
a In late 2016 an independent validation of the Thackaringa drilling database was completed
a The data validation process consisted of systematic review of drilling data (collars assays and surveys) for identification of transcription errors
a Following review historical drill hole locations were also validated against georeferenced historical maps to confirm their location
a Three (3) drill holes at Big Hill were found to be incorrectly located One collar was located and surveyed by GPS and two were digitised from georeferenced historical plans (reported to the nearest metre) as the collars had been destroyed These corrections were captured in the Big Hill Mineral Resource estimate
a Total depths for all holes were checked against original reports
a Final 3D validation of drilling data has been completed by independent geological consultants to support detailed geological modelling in Microminetrade software
a Audits and reviews of QAQC results and procedures are further described in preceding sections of this table including Quality of assay data and laboratory tests Sub-sampling techniques and sample preparation and Logging
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 22
Section 2 Reporting of Exploration Results(Criteria listed in the preceding section also apply to this section)
Criteria JORC Code Explanation Commentary
Mineral tenement and land tenure status
a Type reference namenumber location and ownership including agreements or material issues with third parties such as joint ventures partnerships overriding royalties native title interests historical sites wilderness or national park and environmental settings
a The security of the tenure held at the time of reporting along with any known impediments to obtaining a licence to operate in the area
a The Thackaringa Cobalt project is located approximately 25 kilometres west-southwest of Broken Hill and comprises four tenements with a total area of 63 km2
Tenement
Registered amp Beneficial Holder Minerals Grant Date Expiry Date
Annual Expenditure
Commit-ment
EL6622 Broken Hill Prospecting Limited (BPL)
Group 1 30082006 29082017 $47000
EL 8143 BPL Group 1 26072013 26072017 $14000
ML86 BPL Cobalt iron nickel platinum sulphur
05111975 04112017 $75000
ML87 BPL Cobalt iron nickel platinum sulphur
05111975 04112017 $75000
a The project tenure is subject to a Farm-In agreement between Cobalt Blue Holdings Limited (COB) and Broken Hill Prospecting Limited (BPL) The nature of this agreement is detailed in the COB Replacement Prospectus (as released 4 January 2017)
a The nearest residence (Thackaringa Station) is located approxi-mately three kilometres west of EL6622
a EL6622 is intersected by the Transcontinental Railway the Barrier Highway is located the north of the licence boundaries
a The majority of the project tenure is covered by Western Lands Lease which is considered to extinguish native title interest However Native Title Determination NC9732 (Barkandji Traditional Owners 8) is current over the area and may be relevant to Crown Land parcels (eg public roads) within the project area
a The project tenure is more than 90 kilometres from the nearest National Park and or Wilderness Area (Kinchega National Park) and approximately 20 kilometres south of the nearest Water Supply Reserve (Umberumberka Reservoir Water Supply Reserve)
a The Company is not aware of any impediments to obtaining a licence to operate in the area
Exploration done by other parties
a Acknowledgment and appraisal of exploration by other parties
a A detailed and complete record of all exploration activities undertaken prior to the BPL 2016 drilling program is appended to the JORC Table 1 which forms part of the Cobalt Blue Prospectus Document available on the COB website
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 23
Criteria JORC Code Explanation Commentary
Geology a Deposit type geological setting and style of mineralisation
Regional Geological Setting a The Thackaringa project is located in a deformed and metamor-
phosed Proterozoic supracrustal succession named the Willyama Supergroup which crops out as several inliers in western New South Wales including the Broken Hill Block (Willis et al 1982)
a Exploration by BPL Limited has been focused on the discovery of cobaltiferous pyrite deposits and Broken Hill type base-metal mineralisation both of which are known from historical exploration in the district
a The project area covers portions of the Broken Hill and Thackaringa group successions which host the majority of mineralisation in the region including the Broken Hill base-metal deposit The Sundown Group suite is also present The extensive sequence of quartz-albite-plagioclase rock that hosts the cobaltiferous pyrite mineralisation is interpreted as belonging to the Himalaya Formation which is stratigraphically at the top of the Thackaringa Group
Local Geological Setting a The oldest rocks in the region belong to the Curnamona Craton
which outcrops on the Broken Hill and Euriowie blocks a The overlying Proterozoic rocks have been broadly subdivided
into three major groupings of which the oldest groups are the highly deformed metasediments and igneous derived rocks of the Thackaringa and Broken Hill groups They comprise a major part of the Willyama Supergroup and host the giant Broken Hill massive Pb-Zn-Ag sulphide ore body EL6622 is within the Broken Hill block of the Curnamona Craton
Mineralisation Style a The Thackaringa Mineral deposits (Pyrite Hill Big Hill and Railway)
are characterised by large tonnage cobaltiferous-pyrite minerali-sation hosted within siliceous albitic gneisses and schists of the Himalaya Formation
a Cobalt mineralisation exists within stratabound pyritic horizons where cobalt is present within the pyrite lattice Mineralogical studies have indicated the majority of cobalt (~85) is found in solid solution with primary pyrite (Henley 1998)
a A strong correlation between pyrite content and cobalt grade is observed
a The regional geological setting indicates additional mineralisation targets including
a Stratiform Broken Hill Type (BHT) Copper-Lead-Zinc-Silver deposits
a Copper-rich BHT deposits a Stratiform to stratabound Copper-Cobalt-Gold deposits a Epigenetic Gold and Base metal deposits
Drill hole Information
a A summary of all information mat- erial to the understanding of the exploration results including a tab- ulation of the following information for all Material drill holes
a easting and northing of the drill hole collar
a elevation or RL (Reduced Level ndash elevation above sea level in metres) of the drill hole collar
a dip and azimuth of the hole
a down hole length and interception depth
a See drill holle summaries below
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 24
Drill hole summaries
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
17THD01 Pyrite Hill 1242 MGA54 518382 6449551 28906 -40 222 DDH1
17THD02 Pyrite Hill 1497 MGA54 518475 6449445 29054 -40 258 DDH1
17THD03 Pyrite Hill 785 MGA54 518370 6449190 30328 -40 2851 DDH1
17THD04 Big Hill 1198 MGA54 521078 6449589 27841 -45 1551 DDH1
17THD05 Big Hill 995 MGA54 521669 6449889 2785 -40 131 DDH1
17THD06 Railway 1655 MGA54 521970 6450705 2872 -45 128 DDH1
17THD07 Railway 2746 MGA54 522569 6451282 27067 -45 1565 DDH1
17THD08 Railway 1325 MGA54 522784 6451280 268881 -45 326 DDH1
17THD09 Railway 1205 MGA54 522905 6451511 278471 -40 1525 DDH1
17THD10 Railway 842 MGA54 522992 6451569 279779 -45 130 DDH1
17THD11 Railway 1115 MGA54 523109 6451682 280847 -40 1605 DDH1
17THD12 Railway 1265 MGA54 522796 6451419 272936 -40 14075 DDH1
17THD13 Railway 1055 MGA54 522836 6451456 276747 -40 1385 DDH1
17THD14 Pyrite Hill 99 MGA54 518375 6449089 29425 -60 285 DDH1
17THR001 Railway 156 MGA54 522615 6451277 267561 -60 120 RC5
17THR002 Railway 160 MGA54 522573 6451299 268511 -60 120 RC5
17THR003 Railway 96 MGA54 522124 6450868 27739 -60 130 RC5
17THR004 Railway 150 MGA54 522387 6451319 271453 -60 120 RC5
17THR005 Railway 72 MGA54 522024 6450783 282154 -60 120 RC5
17THR006 Railway 114 MGA54 522049 6450780 28401 -58 125 RC5
17THR007 Railway 180 MGA54 521965 6450699 286585 -59 125 RC5
17THR008 Railway 132 MGA54 521917 6450562 291682 -56 105 RC5
17THR009 Railway 120 MGA54 521906 6450496 292751 -58 105 RC5
17THR010 Railway 72 MGA54 521959 6450398 286445 -56 285 RC5
17THR011 Railway 126 MGA54 522302 6451169 276812 -56 120 RC5
17THR012 Railway 180 MGA54 522440 6451304 274931 -58 173 RC5
17THR013 Big Hill 102 MGA54 521750 6449942 28489 -60 1305 RC5
17THR014 Big Hill 104 MGA54 521628 6449796 277545 -53 130 RC5
17THR015 Big Hill 108 MGA54 521793 6449918 284847 -58 310 RC5
17THR016 Pyrite Hill 138 MGA54 518446 6449209 290391 -57 283 RC5
17THR017 Pyrite Hill 120 MGA54 518449 6449263 293147 -56 2815 RC5
17THR018 Pyrite Hill 78 MGA54 518027 6449806 289567 -60 222 RC5
17THR019 Pyrite Hill 72 MGA54 518105 6449754 287701 -55 222 RC5
17THR020 Pyrite Hill 66 MGA54 518166 6449695 288685 -60 222 RC5
17THR021 Pyrite Hill 78 MGA54 518183 6449717 286007 -60 222 RC5
17THR022 Pyrite Hill 156 MGA54 518510 6449306 28682 -55 281 RC5
17THR023 Pyrite Hill 150 MGA54 518506 6449377 289481 -57 2645 RC5
17THR024 Pyrite Hill 150 MGA54 518457 6449498 288137 -595 2285 RC5
17THR025 Pyrite Hill 114 MGA54 518311 6449609 287463 -60 222 RC5
17THR026 Pyrite Hill 114 MGA54 518268 6449681 284164 -60 222 RC5
17THR027 Pyrite Hill 72 MGA54 518243 6449646 287176 -60 222 RC5
17THR028 Railway 150 MGA54 522457 6451167 300659 -60 350 RC5
17THR029 Railway 162 MGA54 522482 6451084 295964 -60 175 RC5
17THR030 Railway 138 MGA54 522783 6451423 270814 -55 140 RC5
17THR031 Railway 120 MGA54 522945 6451566 27619 -55 145 RC5
17THR032 Railway 132 MGA54 522819 6451473 273712 -53 140 RC5
17THR033 Railway 120 MGA54 522501 6451315 26963 -60 175 RC5
17THR034 Railway 132 MGA54 522321 6451214 275947 -55 127 RC5
17THR035 Railway 156 MGA54 522259 6451120 275749 -552 130 RC5
17THR036 Railway 92 MGA54 522186 6450998 275339 -612 130 RC5
17THR037 Railway 126 MGA54 522148 6450941 274202 -55 126 RC5
17THR038 Railway 168 MGA54 521927 6450619 289555 -55 108 RC5
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 25
Historic down-hole information
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
67TH01 Pyrite Hill 3042 MGA94_54 518564805 644946003 280643 -55 2606 DDH1
70TH02 Pyrite Hill 1486 MGA94_54 51827242 644968054 28408 -61 2186 DDH1
70TH03 Pyrite Hill 1414 MGA94_54 51844985 644921188 28981 -62 2836 DDH1
70BH01 Big Hill 1027 MGA94_54 52085056 64493085 28456 -47 3186 DDH1
70BH02 Big Hill 1039 MGA94_54 52078612 64492644 2801 -50 3186 DDH1
80PYH13 Pyrite Hill 77 MGA94_54 5183582 64490377 29035 -50 2807 DDH1
80PYH14 Pyrite Hill 3003 MGA94_54 51866118 644928762 27796 -60 2807 DDH1
80PYH03 Pyrite Hill 35 MGA94_54 5182515 64495699 2994 -60 2207 PDDH2 2280BGH09 Big Hill 1005 MGA94_54 52065743 644929252 27280 -50 1447 DDH1
80PYH01 Pyrite Hill 2453 MGA94_54 5182462 64495657 3011 -60 2027 PDDH2 680PYH02 Pyrite Hill 513 MGA94_54 5182607 64495742 2976 -60 2207 PDDH2 335880PYH04 Pyrite Hill 55 MGA94_54 51836655 644923174 30834 -60 2957 PDDH2 38780PYH05 Pyrite Hill 936 MGA94_54 51822697 644967819 28518 -49 2227 PDDH2 1880PYH06 Pyrite Hill 855 MGA94_54 51816348 64497573 28373 -544 2227 PDDH2 1880PYH07 Pyrite Hill 945 MGA94_54 51808406 644981836 28516 -55 2227 PDDH2 1280PYH08 Pyrite Hill 110 MGA94_54 51800954 644988543 28614 -60 2227 PDDH2 880PYH09 Pyrite Hill 1005 MGA94_54 5179174 644993176 28655 -485 2227 PDDH2 880PYH10 Pyrite Hill 1453 MGA94_54 51839296 644956596 28553 -50 2227 PDDH2 25580PYH11 Pyrite Hill 1031 MGA94_54 51844096 644932952 29725 -50 2807 PDDH2 1880PYH12 Pyrite Hill 1095 MGA94_54 51840728 644913731 29263 -50 2807 PDDH2 4280BGH05 Big Hill 5486 MGA94_54 52095535 644953441 28893 -60 1637 RCDDH3 45598TC01 Railway 100 MGA94_54 52275006 645133973 26727 -60 1589 RC5
98TC02 Railway 100 MGA94_54 52239241 645138683 26678 -60 1409 RC5
98TC03 Big Hill 84 MGA94_54 52081645 644936939 31305 -60 1359 RC5
98TC04 Big Hill 13825 MGA94_54 52086005 644945085 30409 -60 1409 RC5
98TC05 Big Hill 70 MGA94_54 520728 644932807 28863 -50 1229 RC5
98TC06 Big Hill 108 MGA94_54 520715 6449343 28513 -60 1259 RC5
98TC07 Big Hill 120 MGA94_54 52078597 644938821 29922 -50 1339 RC5
98TC08 Big Hill 90 MGA94_54 52080195 644947781 29101 -60 1509 RC5
98TC09 Big Hill 114 MGA94_54 52082221 644946079 29625 -60 1339 RC5
98TC10 Big Hill 134 MGA94_54 521018 6449576 2815 -50 1729 RC5
98TC11 Railway 35 MGA94_54 5224112 645137396 26701 -60 1329 RC5
80BGH06 Big Hill 6804 MGA94_54 520880 6449472 299 -60 1707 RCDDH3 5880BGH08 Big Hill 797 MGA94_54 52076879 644939093 29629 -60 1267 RCDDH3 69980BGH07 Big Hill 23 MGA94_54 52113656 6449599 27411 -60 1777 RC5
93MGM01 Pyrite Hill 70 MGA94_54 51818544 644971377 28628 -60 2228 RDDH4 2493MGM02 Pyrite Hill 180 MGA94_54 51851545 644945467 28479 -60 2588 RDDH4 4811PHR01 Pyrite Hill 150 MGA94_54 51843547 644907276 28534 -60 27906 RC5
11PHR02 Pyrite Hill 198 MGA94_54 51849992 644915931 28379 -60 27906 RC5
11PHR03 Pyrite Hill 240 MGA94_54 5185603 644918961 28026 -60 27906 RC5
11PHR04 Pyrite Hill 186 MGA94_54 51852863 6449257 28403 -60 27906 RC5
11PHR05 Pyrite Hill 234 MGA94_54 51858425 644939762 28022 -60 25906 RC5
11PHR06 Pyrite Hill 180 MGA94_54 5184909 644952259 28402 -60 23406 RC5
11PHR07 Pyrite Hill 174 MGA94_54 51841347 64495929 28286 -60 21906 RC5
11PHR08 Pyrite Hill 180 MGA94_54 51834274 644965585 28288 -60 21806 RC5
11PSR01 Pyrite Hill 59 MGA94_54 51874273 6448864 26838 -60 25806 RC5
11PSR02 Pyrite Hill 132 MGA94_54 51871938 644896001 27041 -60 25506 RC5
11PSR03 Pyrite Hill 78 MGA94_54 51868699 644905535 27279 -60 25506 RC5
12BER01 Railway 157 MGA94_54 52166731 644989323 27769 -60 141 RC5
12BER02 Railway 132 MGA94_54 52121267 644969067 27353 -60 162 RC5
12BER03 Railway 151 MGA94_54 52187901 645043547 28859 -60 102 RC5
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 26
Historic down-hole information (continued)
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
12BER04 Railway 148 MGA94_54 52235392 645126835 27435 -60 131 RC5
12BER05 Railway 145 MGA94_54 52243947 645116784 29973 -60 124 RC5
12BER06 Railway 169 MGA94_54 52248137 645109135 29595 -60 118 RC5
12BER07 Railway 115 MGA94_54 52232372 645074875 27791 -60 144 RC5
12BER08 Railway 193 MGA94_54 52222079 64508118 27316 -60 129 RC5
12BER09 Railway 13975 MGA94_54 52210125 645088144 27591 -60 129 RC5
12BER10 Railway 151 MGA94_54 52195345 645071618 28449 -60 129 RC5
12BER11 Railway 193 MGA94_54 52273722 645137661 26583 -60 153 RC5
12BER12 Railway 111 MGA94_54 52290973 645151676 27736 -60 153 RC5
12BER13 Railway 205 MGA94_54 52288381 645155754 27103 -60 156 RC5
12BER14 Railway 151 MGA94_54 52312483 645163707 28836 -60 152 RC5
12BER15 Railway 109 MGA94_54 5233113 64518417 28395 -60 154 RC5
12BER16 Railway 115 MGA94_54 52299408 645159199 27595 -60 156 RC5
12BER17 Railway 1155 MGA94_54 5225165 645131494 2691 -60 153 RC5
12BER18 Railway 157 MGA94_54 52233275 645128131 27229 -60 129 RC5
12BER19 Railway 97 MGA94_54 52224055 645106715 27616 -60 135 RC5
12BER20 Railway 120 MGA94_54 52129169 644973363 27695 -60 165 RC5
13BED01 Railway 3492 MGA94_54 52248021 645109243 29601 -60 3007 DDH1
16DM01 Pyrite Hill 1616 MGA94_54 51841138 644959389 28269 -60 2155 DDH1
16DM02 Pyrite Hill 1834 MGA94_54 51852662 644926158 28418 -60 2850 DDH1
16DM03 Big Hill 1265 MGA94_54 5210371 644956749 28301 -60 1585 DDH1
16DM04 Big Hill 1054 MGA94_54 52081474 64494644 29618 -55 1285 DDH1
16DM05 Railway 2465 MGA94_54 5221037 645088187 27662 -60 1285 DDH1
16DM06 Railway 1604 MGA94_54 52291157 645151913 2785 -60 1525 DDH1
16DM07 Railway 2425 MGA94_54 52299526 645159826 27636 -60 1561 DDH1
16DM08 Railway 2585 MGA94_54 52235145 645127307 27385 -60 1309 DDH1
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 27
Down hole length and interception depth ndash 2017 holes
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THD01 34 123 89 982 94 87
including 35 41 6 1143 119 106
and 50 55 5 1311 131 115
and 81 122 41 1366 118 11
17THD02 47 134 87 911 88 92
including 48 77 29 1238 111 114
and 116 134 18 1199 110 111
17THD03 40 635 235 894 116 108
including 49 63 14 1076 143 124
17THD04 20 29 9 1033 86 872 96 24 703 88 81
17THD05 44 60 16 993 98 85
including 44 56 12 1094 109 94
71 76 5 840 64 6317THD06 39 85 46 1136 114 101
including 40 70 30 1227 122 104
and 76 85 9 1148 107 100
17THD07 15 128 113 879 81 88
including 47 55 8 1048 117 103
and 61 102 41 1452 125 123
142 152 10 704 6 102199 204 5 706 49 65
17THR001 27 63 36 1075 106 104
including 37 63 26 1280 119 115
75 84 9 755 91 139
17THR002 37 43 6 711 69 82
91 136 45 983 98 105
including 102 136 34 1190 117 118
17THR003 4 59 55 937 93 94
including 10 46 36 1212 116 110
17THR004 49 146 97 888 102 102
including 51 113 62 1051 114 113
17THR005 52 72 20 1053 128 126
including 53 63 10 1145 125 130
17THR006 14 74 60 754 86 87
including 17 44 27 1176 125 121
17THR007 5 22 17 837 0 125
including 12 19 7 1049 0 105
128 154 26 1034 114 115
including 128 146 18 1321 144 143
17THR008 37 78 41 1319 122 11217THR009 29 65 36 957 94 92including 34 60 26 1150 111 102
100 105 5 833 129 12717THR010 51 57 6 729 49 5317THR011 30 83 53 1116 12 109
including 31 62 31 1423 155 135
17THR012 50 117 67 748 75 86
including 59 67 8 1084 103 126
and 75 102 27 1120 110 113
172 177 5 725 64 64
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 28
Down hole length and interception depth ndash 2017 holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THR013 19 73 54 888 54 5
including 19 29 10 2576 88 77
17THR014 12 45 33 749 81 74
including 25 33 8 1148 113 94
17THR015 40 48 8 995 89 8117THR016 66 115 49 1096 129 134
including 66 81 15 1184 142 139
and 89 114 25 1183 134 141
17THR017 54 112 58 1383 132 128
including 56 85 29 2042 183 158
17THR018 47 63 16 1124 151 14117THR019 42 59 17 1032 107 114
17THR020 29 49 20 1067 116 115
including 29 36 7 1352 135 126
17THR021 44 64 20 1204 131 12717THR022 101 138 37 1152 107 1217THR023 91 137 46 1271 139 133
including 91 97 6 1953 187 166
and 114 125 11 2707 311 265
17THR027 29 54 25 1176 126 118
including 30 47 17 1382 141 125
Down hole length and interception depth ndash historic holes
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
11PHR02 74 114 40 875 108 116
11PHR03 150 162 12 750 83 96
11PHR03 163 190 27 732 106 119
11PHR03 206 227 21 988 117 13
11PHR04 124 172 48 1049 128 129
11PHR05 197 219 22 1138 107 133
11PHR06 104 135 31 854 83 115
11PHR06 155 171 16 1315 12 122
11PHR07 96 147 51 941 95 99
11PHR08 103 115 12 1417 139 148
11PHR08 126 144 18 1048 126 142
12BER01 115 139 24 768 72 74
12BER02 18 25 7 1062 103 93
12BER02 113 123 10 907 85 86
12BER04 41 90 49 1191 114 127
12BER04 121 126 5 1241 9 112
12BER05 33 39 6 1109 79 92
12BER05 65 76 11 721 63 66
12BER06 131 169 38 844 83 128
12BER07 38 43 5 704 10 101
12BER09 33 92 59 841 9 116
12BER11 31 62 31 738 84 126
12BER11 92 159 67 1061 10 131
12BER11 173 193 20 737 67 83
12BER12 27 81 54 1430 181 189
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 29
Down hole length and interception depth ndash historic holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
12BER13 21 42 21 761 74 91
12BER13 65 75 10 1882 204 216
12BER14 28 55 27 1013 125 129
12BER16 25 100 75 1008 106 107
12BER17 92 99 7 739 6 63
12BER18 117 157 40 1017 112 114
12BER19 34 56 22 1151 104 108
12BER19 68 75 7 780 61 6
12BER20 21 46 25 731 69 75
13BED01 266 2915 255 872 85 78
16DM01 96 147 51 851 91 86
16DM02 127 172 45 1118 138 136
16DM03 104 111 7 838 103 9
16DM04 91 99 8 887 91 84
16DM05 30 103 73 793 82 9
16DM05 199 211 12 830 251 221
16DM06 28 84 56 1280 162 167
16DM06 138 146 8 722 78 112
16DM07 35 60 25 1232 111 111
16DM07 71 104 33 1224 133 134
16DM08 76 100 24 1026 11 12
16DM08 165 177 12 921 122 126
17THD01 34 123 89 982 94 87
17THD02 47 134 87 911 88 92
17THD03 40 635 235 894 116 108
17THD04 20 29 9 1033 86 8
17THD04 72 96 24 703 88 81
17THD05 44 60 16 993 98 85
17THD05 71 76 5 840 64 63
17THD06 39 85 46 1136 114 101
17THD07 15 128 113 879 81 88
17THD07 142 152 10 704 6 102
17THD07 199 204 5 706 49 65
17THR001 27 63 36 1075 106 104
17THR001 75 84 9 755 91 139
17THR002 37 43 6 711 69 82
17THR002 91 136 45 983 98 105
17THR003 4 59 55 937 93 94
17THR004 49 146 97 888 102 102
17THR005 52 72 20 1053 128 126
17THR006 14 74 60 754 86 87
17THR007 5 22 17 837 0 125
17THR007 128 154 26 1034 114 115
17THR008 37 78 41 1319 122 112
17THR009 29 65 36 957 94 92
17THR009 100 105 5 833 129 127
17THR010 51 57 6 729 49 53
17THR011 30 83 53 1116 12 109
17THR012 50 117 67 748 75 86
17THR012 172 177 5 725 64 64
17THR013 19 73 54 888 54 5
17THR014 12 45 33 749 81 74
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 30
Down hole length and interception depth ndash historic holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THR015 40 48 8 995 89 81
17THR016 66 115 49 1096 129 134
17THR017 54 112 58 1383 132 128
17THR018 47 63 16 1124 151 141
17THR019 42 59 17 1032 32 114
17THR020 29 49 20 1067 116 115
17THR021 44 64 20 1204 131 127
17THR022 101 138 37 1152 107 12
17THR023 91 137 46 1271 139 133
17THR027 29 54 25 1176 126 118
67TH01 12344 20001 7657 979 0 0
70BH01 3962 5334 1372 3323 31 0
70BH01 6431 8443 2012 1203 95 0
70BH02 7406 8686 128 704 75 0
70TH02 78 841 61 1666 175 154
70TH02 871 1021 15 1661 8 72
70TH03 777 1295 518 1016 129 132
80BGH05 39 49 10 752 0 0
80BGH06 18 6804 5004 969 0 0
80BGH08 44 7815 3415 939 0 0
80PYH01 75 17 95 725 0 0
80PYH02 341 4825 1415 1121 0 0
80PYH03 23 35 12 711 0 0
80PYH04 3975 55 1525 735 0 0
80PYH05 367 65 283 1160 118 0
80PYH06 54 62 8 905 0 0
80PYH07 67 794 124 1113 125 0
80PYH10 4845 1374 8895 831 86 0
80PYH11 346 465 119 916 8 0
80PYH11 572 9105 3385 1239 106 0
80PYH12 302 365 63 791 102 0
80PYH12 8515 908 565 857 146 0
80PYH14 2518 2734 216 1252 131 0
93MGM02 85 160 75 941 85 0
98TC01 20 47 27 744 91 126
98TC01 48 71 23 917 119 164
98TC03 34 45 11 1480 55 6
98TC03 68 79 11 1095 43 42
98TC04 84 94 10 966 39 4
98TC04 107 133 26 771 77 82
98TC05 24 62 38 754 64 7
98TC06 66 72 6 727 104 111
98TC06 76 101 25 767 101 106
98TC07 35 46 11 1546 165 171
98TC07 61 82 21 728 91 94
98TC09 32 39 7 716 49 174
98TC09 82 107 25 732 6 67
98TC10 101 125 24 732 79 8
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 31
Criteria JORC Code Explanation Commentary
Data aggregation methods
a In reporting Exploration Results weighting averaging techniques maximum andor minimum grade truncations (eg cutting of high grades) and cut-off grades are usually Material and should be stated
a Where aggregate intercepts incorporate short lengths of high grade results and longer lengths of low grade results the procedure used for such aggregation should be stated and some typical examples of such aggregations should be shown in detail
a The assumptions used for any reporting of metal equivalent values should be clearly stated
Drilling a Drill hole intercept grades are typically reported as down-hole
length-weighted averages with any non-recovered sample within the reported intervals treated as no grade The cut-off used for selecting significant intersections is selected to reflect the overall tenor of mineralisation in most cases 500ppm cobalt
a No top cuts have been applied when calculating average grades for reported significant intersections
a No metal equivalent values are reported
Relationship between mineralis- ation widths and intercept lengths
a These relationships are particularly important in the reporting of Exploration Results
a If the geometry of the mineralisation with respect to the drillhole angle is known its nature should be reported
a If it is not known and only the down hole lengths are reported there should be a clear statement to this effect (eg lsquodown hole length true width not knownrsquo)
a Drill holes at the Thackaringa project are typically angled at 50deg or 60deg and drilled perpendicular to the mineralised trend with drilling orientations adjusted along strike to accommodate folded geological sequences
a Mineralisation at the Big Hill and Railway prospects is steeply dipping and consequently mineralised intersections will be greater than true width At Pyrite Hill mineralisation is gently dipping and mineralised intersections will be close to true width
a There is insufficient geological knowledge to accurately estimate true widths and as such all drill intersections are reported as down hole lengths
Diagrams a Appropriate maps and sections (with scales) and tabulations of intercepts should be included for any significant discovery being reported These should include but not be limited to a plan view of drill hole collar locations and appropriate sectional views
a Appropriate maps and sections are presented in the accompa-nying ASX release
Balanced reporting
a Where comprehensive reporting of all exploration results is not practicable representative reporting of both low and high grades andor widths should be practiced to avoid misleading reporting of Exploration Results
a Only mineralised drill hole intersections regarded as highly anomalous and of economic interest are reported The proportion of each hole represented by the reported intervals can be ascertained from the sum of the reported intervals divided by the total drill hole depth
a All assay results for drill holes included in the various Mineral Resource estimates have been considered and comprise results not necessarily regarded as anomalous
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 32
Criteria JORC Code Explanation Commentary
Other substantive exploration data
a Other exploration data if meaningful and material should be reported including (but not limited to) geological obser-vations geophysical survey results geochemical survey results bulk samples ndash size and method of treatment metallurgical test results bulk density groun d- water geotechnical and rock characteristics potential deleterious or contaminating substances
a No further exploration data is deemed material to the results presented in this release
Further work a The nature and scale of planned further work (eg tests for lateral extensions or depth extensions or large-scale step-out drilling)
a Diagrams clearly highlighting the areas of possible extensions including the main geological interpretations and future drilling areas provided this information is not commercially sensitive
a The nature and scale of planned further work will be determined following the completion of revised Mineral Resource estimation for the Thackaringa deposits scheduled for May 2017
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 15
Criteria JORC Code Explanation Commentary
Drill sample recovery
a Method of recording and assessing core and chip sample recoveries and results assessed
a Measures taken to maximise sample recovery and ensure representative nature of the samples
a Whether a relationship exists between sample recovery and grade and whether sample bias may have occurred due to preferential lossgain of finecoarse material
Diamond Drilling
a Historical core recoveries were accurately quantified through measurement of actual core recovered versus drilled intervals
a Historical diamond drilling employed conventional drilling techniques while diamond drilling completed by Broken Hill Prospecting utilised a triple-tube system to maximise sample recovery
a Core recovery of 997 was achieved during completion of drill hole 13BED01
a Core recovery of 98 was achieved during the 2016 diamond drilling program
a Core recovery of 933 was achieved during the 2017 diamond drilling program
a No relationship between sample recovery and grade has been observed
Reverse Circulation Drilling
a Reverse circulation sample recoveries were visually estimated during drilling programs Where the estimated sample recovery was below 100 this was recorded in field logs by means of qualitative observation
a Reverse circulation drilling employed adequate air (using a compressor and booster) to maximise sample recovery
a No relationship between sample recovery and grade has been observed
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 16
Criteria JORC Code Explanation Commentary
Logging a Whether core and chip samples have been geologically and geotechnically logged to a level of detail to support appropriate Mineral Resource estimation mining studies and metallurgical studies
a Whether logging is qualitative or quantitative in nature Core (or costean channel etc) photography
a The total length and percentage of the relevant intersections logged
a A qualified geoscientist has logged all reported drill holes in their entirety This logging has been completed to a level of detail considered to accurately support Mineral Resource estimation and metallurgical studies The parameters logged include lithology alteration mineralisation and oxidation These parameters are both qualitative and quantitative in nature
a Diamond drilling completed in 2017 by BPL has been subject to geotechnical logging with parameters recorded including rock-quality designation (RQD) fracture frequency and hardness
a During 2013 a considerable amount of historical drilling was re-logged through review of available core stored at Broken Hill as well the re-interpretation of historical reports where core or percussion samples no longer exist A total of eight (8) diamond drill holes and sixteen (16) diamond drill holes with pre-collars were re-logged as detailed below
Hole ID Deposit Max Depth Hole TypePre-Collar Depth (m)
67TH01 Pyrite Hill 3042 DDH1 ndash
70TH02 Pyrite Hill 1486 DDH1 ndash
70TH03 Pyrite Hill 1414 DDH1 ndash
70BH01 Big Hill 1027 DDH1 ndash
70BH02 Big Hill 1039 DDH1 ndash
80PYH13 Pyrite Hill 77 DDH1 ndash
80PYH14 Pyrite Hill 3003 DDH1 ndash
80BGH09 Big Hill 1005 DDH1 ndash
80PYH01 Pyrite Hill 2453 PDDH2 6
80PYH02 Pyrite Hill 513 PDDH2 3358
80PYH04 Pyrite Hill 55 PDDH2 387
80PYH05 Pyrite Hill 936 PDDH2 18
80PYH06 Pyrite Hill 855 PDDH2 18
80PYH07 Pyrite Hill 945 PDDH2 12
80PYH08 Pyrite Hill 110 PDDH2 8
80PYH09 Pyrite Hill 1005 PDDH2 8
80PYH10 Pyrite Hill 1453 PDDH2 255
80PYH11 Pyrite Hill 1031 PDDH2 18
80PYH12 Pyrite Hill 1095 PDDH2 42
80BGH05 Big Hill 5486 RCDDH3 455
80BGH06 Big Hill 6804 RCDDH3 58
80BGH08 Big Hill 797 RCDDH3 699
93MGM01 Pyrite Hill 70 RDDH4 24
93MGM02 Pyrite Hill 180 RDDH4 48
1 Diamond drill hole2 Diamond drill hole with percussion pre-collar3 Diamond drill hole with reverse circulation pre-collar4 Diamond drill hole with rotary air blast pre-collar
a Litho-geochemistry has been used to verify geological logging where available for drilling completed by Broken Hill Prospecting post 2010
a Representative reference trays of chips from reverse circulation drilling completed post 2010 have been retained by Broken Hill Prospecting
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 17
Criteria JORC Code Explanation Commentary
Sub-sampling techniques and sample preparation
a If core whether cut or sawn and whether quarter half or all core taken
a If non-core whether riffled tube sampled rotary split etc and whether sampled wet or dry
a For all sample types the nature quality and appropriateness of the sample preparation technique
a Quality control procedures adopted for all sub-sampling stages to maximise representivity of samples
a Measures taken to ensure that the sampling is representative of the in situ material collected including for instance results for field duplicatesecond-half sampling
a Whether sample sizes are appropriate to the grain size of the material being sampled
Diamond Drilling (DD)Pre-1990a Core samples were hand-split or sawn with re-logging of available
historical core (see Logging) indicating a 7030 (retainedassayed) split was typical The variation of sample ratios noted are consid-ered consistent with the sub-sampling technique (hand-splitting)
a No second half samples were submitted for analysis a It is considered water used for core cutting is unprocessed and
unlikely to have introduced sample contamination a Procedures relating to the definition of the line of cutting or splitting
are not available It is expected that lsquostandard industry practicersquo for the period was applied to maximize sample representivity
Post-1990 a NQ drilling core was sawn with half core submitted for assay a HQ drilling core was sawn with quarter core submitted for assay a No second half samples were submitted for analysis a It is considered water used for core cutting is unprocessed and
unlikely to have introduced sample contamination a Procedures relating to the definition of the line of cutting or splitting
are not available It is expected that lsquostandard industry practicersquo for the period was applied to maximise sample representivity
2016 Metallurgical Drilling a All HQ drill core was sawn into halves with each half then re-sawn
to provide 4 lengths of quarter core for each interval a One half core was submitted for assay a One quarter core was submitted for metallurgical test work a One quarter core was retained for archive a It is considered that the water used for core cutting is most
unlikely to have introduced sample contamination a Sample sawing and processing for test work were undertaken
according to lsquostandard industry practicersquo to maximise sample representivity
2017 Diamond Drilling a All HQ drill core was sawn into halves with each half then re-sawn to
provide 4 lengths of quarter core for each interval
a One quarter ndash one half core was submitted for assay
a One quarter ndash three quarter core was retained for archive
a It is considered that the water used for core cutting is most unlikely to have introduced sample contamination
a Sample sawing and processing for test work were undertaken according to lsquostandard industry practicersquo to maximise sample representivity
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 18
Criteria JORC Code Explanation Commentary
Sub-sampling techniques and sample preparation (continued)
Historical Reverse Circulation Drilling a Sub-sampling of reverse circulationpercussion chips was
achieved using a cyclone with cone or riffle splitter a During drilling operations the sample cyclone and splitter were
regularly cleaned to prevent down hole sample contamination a Dry sampling was achieved with the use of adequate air using a
compressor and booster where groundwater was encountered a During reverse circulation drilling completed by Broken Hill
Prospecting duplicate samples were collected at the time of drilling These were obtained by spearing the bulk material held in the PVC sacks using a spear made of 40mm diameter PVC pipe three samples were speared through the full depth of the bulk material and these were combined to form one sample
a The Thackaringa drilling database includes a total of 139 field duplicates collected during reverse circulation drilling This reflects a ratio of approximately one field duplicate in every 32 samples (31) for drill holes where duplicates were collected (31 drill holes for 4469 metres) and an overall ratio of one field duplicate in every 42 samples (24) for all reverse circulation drill holes (43 drill holes for 58015 metres)
a Statistical analysis of field duplicates collected during drilling completed by Broken Hill Prospecting (119 duplicates representing 86 of all field duplicates) considered 18 elements of which only chromium lanthanum and titanium show some bias in the duplicate samples For cobalt the confidence limits were evenly placed either side of zero and the duplicates are deemed to be representative of the original samples
2017 Reverse Circulation Drilling a Sub-sampling of reverse circulationpercussion chips was achieved
using a riffle splitter
a During drilling operations the splitter was regularly cleaned to prevent down hole sample contamination
a Dry sampling was achieved with the use of adequate air using a compressor and booster where groundwater was encountered
a During reverse circulation drilling completed by Broken Hill Prospecting duplicate samples were collected at the time of drilling These were obtained by riffle splitting the remnant bulk sample following collection of the primary split
a Field duplicate samples were collected regularly during drilling (for every 18th sample on average)
a Assay results received to date include analysis of 120 field duplicate pairs from 24 RC drill holes
a A measure of the average precision of the sampling sample preparation and assaying methods given by the mean per cent difference (MPD) assay values of the duplicate pairs is summarised below Overall the sampling and assay precision for Co Fe and S at economically significant grades is regarded as reasonable
RC Field Duplicate Pairs
Co Cut-Off Count Co MPD S MPD Fe MPD
All 120 13 16 9
200ppm 52 13 11 10
500ppm 34 12 9 9
1000ppm 20 8 7 7
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 19
Criteria JORC Code Explanation Commentary
Quality of assay data and laboratory tests
a The nature quality and appropriateness of the assaying and laboratory procedures used and whether the technique is considered partial or total
a For geophysical tools spectrometers handheld XRF instruments etc the parameters used in determining the analysis including instrument make and model reading times calibrations factors applied and their derivation etc
a Nature of quality control proce-dures adopted (eg standards blanks duplicates external laboratory checks) and whether acceptable levels of accuracy (ie lack of bias) and precision have been established
a The nature and quality of all assaying and laboratory procedures employed for samples obtained through drilling (diamond and reverse circulation) are considered lsquoindustry standardrsquo for the respective periods
a The assay techniques employed for drilling (diamond and reverse circulation) include mixed acid digestion with ICP-OES and AAS finishes These methods are considered appropriate for the targeted mineralisation and regarded as a lsquonear totalrsquo digestion technique with resistive phases not expected to affect cobalt analyses
a All samples have been processed at independent commercial laboratories including AMDEL Australian Laboratory Services (ALS) Analabs and Genalysis
a All samples from drilling completed by Broken Hill Prospecting during 2011-2012 were assayed at ALS in Orange New South Wales All samples from drilling completed by Broken Hill Prospecting during 2016-2017 were assayed at ALS Adelaide South Australia ALS is a NATA Accredited Laboratory and qualifies for JASANZ ISO90012008 quality systems ALS maintains robust internal QAQC procedures (including analysis of standards repeats and blanks)
a To monitor the accuracy of assay results from the 2017 Thackaringa drilling CRM standards were included in the assay sample stream every 24 samples (on average) for RC chips and every 30 samples for diamond core The CRM samples were purchased from Ore Research amp Exploration Pty Ltd and the results are summarised below
Cobalt Sulphur Iron
OREAS Standard Count plusmn1SD plusmn2SD plusmn3SD plusmn3SD+ plusmn1SD plusmn2SD plusmn3SD plusmn3SD+ plusmn1SD plusmn2SD plusmn3SD plusmn3SD+
160 Low S Blank (28ppm Co) 12 10 ndash ndash 2 7 ndash ndash 5 6 2 2 2
162 Medium Grade (631ppm Co) 53 37 12 3 ndash 32 18 3 ndash 14 12 13 14
163 Low Grade (230ppm Co) 40 30 8 2 ndash 7 25 7 1 2 3 2 33
165 High Grade (2445ppm Co) 13 11 2 ndash ndash 7 5 1 ndash 1 5 2 5
166 High Grade (1970ppm Co) 35 26 8 ndash 1 27 6 ndash 2 9 5 5 16
153 114 30 5 3 80 54 11 8 32 27 24 70
75 20 3 2 52 35 7 5 21 18 16 46
Cobalt CRM Standards
Internal COB assay QAQC protocols cobalt performed well with 95 standard analyses falling within two standard deviations of the certified value and 75 within one SD No systematic out-of-specification trends were identified and there was no discernible tendency for a particular Co standard to preferentially assay either higher or lower than the certified Co concentration
Cobalt Blanks
A number of blanks were also submitted with the RC chip and diamond core samples mdash the OREAS160 CRM is essentially a low-sulphide blank with respect to cobalt (28ppm) and the results of assay of this standard are summarised in Table 1 In addition five quartz sand blanks were submitted bracketing very pyrite-rich intervals in diamond drill holes 17THD06 and 17THD07 Overall the quartz sand blanks returned a maximum of 69ppm Co 004 S and 065 Fe which are regarded as similar to background values and any contamination during sample preparation at the assay laboratory is likely to be immaterial to the final results
Based on the assay of standards and blanks with 95 of the Co results falling within two standard deviations of the certified value it is concluded that the assay results for Co are likely to be representative for the material submitted with no additional source of inaccuracy or bias identified
Sulphur CRM Standards
sulphur was reasonably well-performed with 87 of the total 153 standard analyses falling within two standard deviations of the certified value and 95 within 3SD
Iron CRM Standards
Iron analysis of standards showed poor accuracy with a tendency to assay low mdash 46 of the assays fall outside of 3 SD typically but not exclusively lower than the certified value
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 20
Criteria JORC Code Explanation Commentary
Verification of sampling and assaying
a The verification of significant intersections by either inde-pendent or alternative company personnel
a The use of twinned holes
a Documentation of primary data data entry procedures data verification data storage (physical and electronic) protocols
a Discuss any adjustment to assay data
a Historical drilling intersections were internally verified by personnel employed by previous explorers including CRAE Pty Limited Central Austin Pty Limited and Hunter Resources Broken Hill Prospecting has completed a systematic review of the related data
a The Thackaringa drilling database exists in electronic form as a Microsoft Access database Information related to individual drill holes is stored in digital files as extracted from historical reports (typically including location plan section logs photos surveys assays and petrology)
a Historical drilling data available in electronic form has been re-formatted and imported into the drilling database
a Quantitative historical drilling data including assays have been captured electronically during systematic data compilation and validation completed by Broken Hill Prospecting
a Samples returning assays below detection limits are assigned half detection limit values in the database
a All significant intersections are verified by the Companyrsquos Exploration Manager and independent geological consultant
Location of data points
a Accuracy and quality of surveys used to locate drill holes (collar and down-hole surveys) trenches mine workings and other locations used in Mineral Resource estimation
a Specification of the grid system used
a Quality and adequacy of topographic control
a Historical drill collars have been relocated and surveyed using a differential GPS (DGPS) In the instances where no collar could be located the position has been derived from georeferenced historical plans
a During systematic data validation completed in 2016 three drill holes at Big Hill were found to be incorrectly located One collar was located and surveyed by GPS and two were digitised from georeferenced historical plans (reported to the nearest metre) as the collars had been destroyed These corrections were captured in the Big Hill Mineral Resource estimate
a Down hole surveys using digital cameras were completed on all post 2000 drilling Down hole surveys for some earlier drilling were estimated from hole trace and section data where raw survey data was not reported
a All 2017 Thackaringa drill hole collars were located and surveyed with DGPS by an independent surveyor with reported accuracy of plusmn005m in horizontal and vertical measurement
a Downhole surveys using digital cameras were completed on all 2017 drill-holes
a All data is recorded in the GDA94 datum UTM Zone 54 (MGA54)
a 3D validation of drilling data has been completed by independent geological consultants to support detailed geological modelling in Microminetrade software
a The quality of topographic control is deemed adequate in consideration of the results presented in this release
Data spacing and distribution
a Data spacing for reporting of Exploration Results
a Whether the data spacing and distribution is sufficient to estab-lish the degree of geological and grade continuity appropriate for the Mineral Resource and Ore Reserve estimation procedure(s) and classifications applied
a Whether sample compositing has been applied
a The data density of existing drill holes at Thackaringa has been materially increased by the 2017 drilling program which was undertaken primarily to undertake infill drilling
a Detailed geological mapping supported by drill-hole data of sufficient spacing and distribution to establish a 3D geological model
a The level of geological and grade continuity is appropriate for the Mineral Resource estimation methodologies used and the classifications applied (being wholly Inferred Mineral Resources) Note that a recalculation of the Mineral Resource using 2017 drilling and assay data will commence in mid-2017
a No sample compositing has been applied to reported intersections
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 21
Criteria JORC Code Explanation Commentary
Orientation of data in relation to geological structure
a Whether the orientation of sampling achieves unbiased sampling of possible structures and the extent to which this is known considering the deposit type
a If the relationship between the drilling orientation and the orientation of key mineralised structures is considered to have introduced a sampling bias this should be assessed and reported if material
a The 2017 drill holes at the Thackaringa project were typically angled at -500 or -600 to the horizontal and drilled perpendicular to the mineralised trend with drilling orientations adjusted along strike to accommodate folded geological sequences
a Mineralisation at the Big Hill and Railway prospects is steeply dipping and consequently mineralised intersections will be greater than true width At Pyrite Hill mineralisation is gently dipping and mineralised intersections will be close to true width
a The drilling orientation is not considered to have introduced a sampling bias on assessment of the current geological interpretation
Sample security
a The measures taken to ensure sample security
a Sample security procedures are considered to be lsquoindustry standardrsquo for the respective periods
a Following recent drilling completed by BPL samples were trucked by an independent courier directly from Broken Hill to ALS Adelaide
a BPL consider that risks associated with sample security are limited given the nature of the targeted mineralisation
Audits or reviews
a The results of any audits or reviews of sampling techniques and data
a In late 2016 an independent validation of the Thackaringa drilling database was completed
a The data validation process consisted of systematic review of drilling data (collars assays and surveys) for identification of transcription errors
a Following review historical drill hole locations were also validated against georeferenced historical maps to confirm their location
a Three (3) drill holes at Big Hill were found to be incorrectly located One collar was located and surveyed by GPS and two were digitised from georeferenced historical plans (reported to the nearest metre) as the collars had been destroyed These corrections were captured in the Big Hill Mineral Resource estimate
a Total depths for all holes were checked against original reports
a Final 3D validation of drilling data has been completed by independent geological consultants to support detailed geological modelling in Microminetrade software
a Audits and reviews of QAQC results and procedures are further described in preceding sections of this table including Quality of assay data and laboratory tests Sub-sampling techniques and sample preparation and Logging
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 22
Section 2 Reporting of Exploration Results(Criteria listed in the preceding section also apply to this section)
Criteria JORC Code Explanation Commentary
Mineral tenement and land tenure status
a Type reference namenumber location and ownership including agreements or material issues with third parties such as joint ventures partnerships overriding royalties native title interests historical sites wilderness or national park and environmental settings
a The security of the tenure held at the time of reporting along with any known impediments to obtaining a licence to operate in the area
a The Thackaringa Cobalt project is located approximately 25 kilometres west-southwest of Broken Hill and comprises four tenements with a total area of 63 km2
Tenement
Registered amp Beneficial Holder Minerals Grant Date Expiry Date
Annual Expenditure
Commit-ment
EL6622 Broken Hill Prospecting Limited (BPL)
Group 1 30082006 29082017 $47000
EL 8143 BPL Group 1 26072013 26072017 $14000
ML86 BPL Cobalt iron nickel platinum sulphur
05111975 04112017 $75000
ML87 BPL Cobalt iron nickel platinum sulphur
05111975 04112017 $75000
a The project tenure is subject to a Farm-In agreement between Cobalt Blue Holdings Limited (COB) and Broken Hill Prospecting Limited (BPL) The nature of this agreement is detailed in the COB Replacement Prospectus (as released 4 January 2017)
a The nearest residence (Thackaringa Station) is located approxi-mately three kilometres west of EL6622
a EL6622 is intersected by the Transcontinental Railway the Barrier Highway is located the north of the licence boundaries
a The majority of the project tenure is covered by Western Lands Lease which is considered to extinguish native title interest However Native Title Determination NC9732 (Barkandji Traditional Owners 8) is current over the area and may be relevant to Crown Land parcels (eg public roads) within the project area
a The project tenure is more than 90 kilometres from the nearest National Park and or Wilderness Area (Kinchega National Park) and approximately 20 kilometres south of the nearest Water Supply Reserve (Umberumberka Reservoir Water Supply Reserve)
a The Company is not aware of any impediments to obtaining a licence to operate in the area
Exploration done by other parties
a Acknowledgment and appraisal of exploration by other parties
a A detailed and complete record of all exploration activities undertaken prior to the BPL 2016 drilling program is appended to the JORC Table 1 which forms part of the Cobalt Blue Prospectus Document available on the COB website
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 23
Criteria JORC Code Explanation Commentary
Geology a Deposit type geological setting and style of mineralisation
Regional Geological Setting a The Thackaringa project is located in a deformed and metamor-
phosed Proterozoic supracrustal succession named the Willyama Supergroup which crops out as several inliers in western New South Wales including the Broken Hill Block (Willis et al 1982)
a Exploration by BPL Limited has been focused on the discovery of cobaltiferous pyrite deposits and Broken Hill type base-metal mineralisation both of which are known from historical exploration in the district
a The project area covers portions of the Broken Hill and Thackaringa group successions which host the majority of mineralisation in the region including the Broken Hill base-metal deposit The Sundown Group suite is also present The extensive sequence of quartz-albite-plagioclase rock that hosts the cobaltiferous pyrite mineralisation is interpreted as belonging to the Himalaya Formation which is stratigraphically at the top of the Thackaringa Group
Local Geological Setting a The oldest rocks in the region belong to the Curnamona Craton
which outcrops on the Broken Hill and Euriowie blocks a The overlying Proterozoic rocks have been broadly subdivided
into three major groupings of which the oldest groups are the highly deformed metasediments and igneous derived rocks of the Thackaringa and Broken Hill groups They comprise a major part of the Willyama Supergroup and host the giant Broken Hill massive Pb-Zn-Ag sulphide ore body EL6622 is within the Broken Hill block of the Curnamona Craton
Mineralisation Style a The Thackaringa Mineral deposits (Pyrite Hill Big Hill and Railway)
are characterised by large tonnage cobaltiferous-pyrite minerali-sation hosted within siliceous albitic gneisses and schists of the Himalaya Formation
a Cobalt mineralisation exists within stratabound pyritic horizons where cobalt is present within the pyrite lattice Mineralogical studies have indicated the majority of cobalt (~85) is found in solid solution with primary pyrite (Henley 1998)
a A strong correlation between pyrite content and cobalt grade is observed
a The regional geological setting indicates additional mineralisation targets including
a Stratiform Broken Hill Type (BHT) Copper-Lead-Zinc-Silver deposits
a Copper-rich BHT deposits a Stratiform to stratabound Copper-Cobalt-Gold deposits a Epigenetic Gold and Base metal deposits
Drill hole Information
a A summary of all information mat- erial to the understanding of the exploration results including a tab- ulation of the following information for all Material drill holes
a easting and northing of the drill hole collar
a elevation or RL (Reduced Level ndash elevation above sea level in metres) of the drill hole collar
a dip and azimuth of the hole
a down hole length and interception depth
a See drill holle summaries below
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 24
Drill hole summaries
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
17THD01 Pyrite Hill 1242 MGA54 518382 6449551 28906 -40 222 DDH1
17THD02 Pyrite Hill 1497 MGA54 518475 6449445 29054 -40 258 DDH1
17THD03 Pyrite Hill 785 MGA54 518370 6449190 30328 -40 2851 DDH1
17THD04 Big Hill 1198 MGA54 521078 6449589 27841 -45 1551 DDH1
17THD05 Big Hill 995 MGA54 521669 6449889 2785 -40 131 DDH1
17THD06 Railway 1655 MGA54 521970 6450705 2872 -45 128 DDH1
17THD07 Railway 2746 MGA54 522569 6451282 27067 -45 1565 DDH1
17THD08 Railway 1325 MGA54 522784 6451280 268881 -45 326 DDH1
17THD09 Railway 1205 MGA54 522905 6451511 278471 -40 1525 DDH1
17THD10 Railway 842 MGA54 522992 6451569 279779 -45 130 DDH1
17THD11 Railway 1115 MGA54 523109 6451682 280847 -40 1605 DDH1
17THD12 Railway 1265 MGA54 522796 6451419 272936 -40 14075 DDH1
17THD13 Railway 1055 MGA54 522836 6451456 276747 -40 1385 DDH1
17THD14 Pyrite Hill 99 MGA54 518375 6449089 29425 -60 285 DDH1
17THR001 Railway 156 MGA54 522615 6451277 267561 -60 120 RC5
17THR002 Railway 160 MGA54 522573 6451299 268511 -60 120 RC5
17THR003 Railway 96 MGA54 522124 6450868 27739 -60 130 RC5
17THR004 Railway 150 MGA54 522387 6451319 271453 -60 120 RC5
17THR005 Railway 72 MGA54 522024 6450783 282154 -60 120 RC5
17THR006 Railway 114 MGA54 522049 6450780 28401 -58 125 RC5
17THR007 Railway 180 MGA54 521965 6450699 286585 -59 125 RC5
17THR008 Railway 132 MGA54 521917 6450562 291682 -56 105 RC5
17THR009 Railway 120 MGA54 521906 6450496 292751 -58 105 RC5
17THR010 Railway 72 MGA54 521959 6450398 286445 -56 285 RC5
17THR011 Railway 126 MGA54 522302 6451169 276812 -56 120 RC5
17THR012 Railway 180 MGA54 522440 6451304 274931 -58 173 RC5
17THR013 Big Hill 102 MGA54 521750 6449942 28489 -60 1305 RC5
17THR014 Big Hill 104 MGA54 521628 6449796 277545 -53 130 RC5
17THR015 Big Hill 108 MGA54 521793 6449918 284847 -58 310 RC5
17THR016 Pyrite Hill 138 MGA54 518446 6449209 290391 -57 283 RC5
17THR017 Pyrite Hill 120 MGA54 518449 6449263 293147 -56 2815 RC5
17THR018 Pyrite Hill 78 MGA54 518027 6449806 289567 -60 222 RC5
17THR019 Pyrite Hill 72 MGA54 518105 6449754 287701 -55 222 RC5
17THR020 Pyrite Hill 66 MGA54 518166 6449695 288685 -60 222 RC5
17THR021 Pyrite Hill 78 MGA54 518183 6449717 286007 -60 222 RC5
17THR022 Pyrite Hill 156 MGA54 518510 6449306 28682 -55 281 RC5
17THR023 Pyrite Hill 150 MGA54 518506 6449377 289481 -57 2645 RC5
17THR024 Pyrite Hill 150 MGA54 518457 6449498 288137 -595 2285 RC5
17THR025 Pyrite Hill 114 MGA54 518311 6449609 287463 -60 222 RC5
17THR026 Pyrite Hill 114 MGA54 518268 6449681 284164 -60 222 RC5
17THR027 Pyrite Hill 72 MGA54 518243 6449646 287176 -60 222 RC5
17THR028 Railway 150 MGA54 522457 6451167 300659 -60 350 RC5
17THR029 Railway 162 MGA54 522482 6451084 295964 -60 175 RC5
17THR030 Railway 138 MGA54 522783 6451423 270814 -55 140 RC5
17THR031 Railway 120 MGA54 522945 6451566 27619 -55 145 RC5
17THR032 Railway 132 MGA54 522819 6451473 273712 -53 140 RC5
17THR033 Railway 120 MGA54 522501 6451315 26963 -60 175 RC5
17THR034 Railway 132 MGA54 522321 6451214 275947 -55 127 RC5
17THR035 Railway 156 MGA54 522259 6451120 275749 -552 130 RC5
17THR036 Railway 92 MGA54 522186 6450998 275339 -612 130 RC5
17THR037 Railway 126 MGA54 522148 6450941 274202 -55 126 RC5
17THR038 Railway 168 MGA54 521927 6450619 289555 -55 108 RC5
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 25
Historic down-hole information
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
67TH01 Pyrite Hill 3042 MGA94_54 518564805 644946003 280643 -55 2606 DDH1
70TH02 Pyrite Hill 1486 MGA94_54 51827242 644968054 28408 -61 2186 DDH1
70TH03 Pyrite Hill 1414 MGA94_54 51844985 644921188 28981 -62 2836 DDH1
70BH01 Big Hill 1027 MGA94_54 52085056 64493085 28456 -47 3186 DDH1
70BH02 Big Hill 1039 MGA94_54 52078612 64492644 2801 -50 3186 DDH1
80PYH13 Pyrite Hill 77 MGA94_54 5183582 64490377 29035 -50 2807 DDH1
80PYH14 Pyrite Hill 3003 MGA94_54 51866118 644928762 27796 -60 2807 DDH1
80PYH03 Pyrite Hill 35 MGA94_54 5182515 64495699 2994 -60 2207 PDDH2 2280BGH09 Big Hill 1005 MGA94_54 52065743 644929252 27280 -50 1447 DDH1
80PYH01 Pyrite Hill 2453 MGA94_54 5182462 64495657 3011 -60 2027 PDDH2 680PYH02 Pyrite Hill 513 MGA94_54 5182607 64495742 2976 -60 2207 PDDH2 335880PYH04 Pyrite Hill 55 MGA94_54 51836655 644923174 30834 -60 2957 PDDH2 38780PYH05 Pyrite Hill 936 MGA94_54 51822697 644967819 28518 -49 2227 PDDH2 1880PYH06 Pyrite Hill 855 MGA94_54 51816348 64497573 28373 -544 2227 PDDH2 1880PYH07 Pyrite Hill 945 MGA94_54 51808406 644981836 28516 -55 2227 PDDH2 1280PYH08 Pyrite Hill 110 MGA94_54 51800954 644988543 28614 -60 2227 PDDH2 880PYH09 Pyrite Hill 1005 MGA94_54 5179174 644993176 28655 -485 2227 PDDH2 880PYH10 Pyrite Hill 1453 MGA94_54 51839296 644956596 28553 -50 2227 PDDH2 25580PYH11 Pyrite Hill 1031 MGA94_54 51844096 644932952 29725 -50 2807 PDDH2 1880PYH12 Pyrite Hill 1095 MGA94_54 51840728 644913731 29263 -50 2807 PDDH2 4280BGH05 Big Hill 5486 MGA94_54 52095535 644953441 28893 -60 1637 RCDDH3 45598TC01 Railway 100 MGA94_54 52275006 645133973 26727 -60 1589 RC5
98TC02 Railway 100 MGA94_54 52239241 645138683 26678 -60 1409 RC5
98TC03 Big Hill 84 MGA94_54 52081645 644936939 31305 -60 1359 RC5
98TC04 Big Hill 13825 MGA94_54 52086005 644945085 30409 -60 1409 RC5
98TC05 Big Hill 70 MGA94_54 520728 644932807 28863 -50 1229 RC5
98TC06 Big Hill 108 MGA94_54 520715 6449343 28513 -60 1259 RC5
98TC07 Big Hill 120 MGA94_54 52078597 644938821 29922 -50 1339 RC5
98TC08 Big Hill 90 MGA94_54 52080195 644947781 29101 -60 1509 RC5
98TC09 Big Hill 114 MGA94_54 52082221 644946079 29625 -60 1339 RC5
98TC10 Big Hill 134 MGA94_54 521018 6449576 2815 -50 1729 RC5
98TC11 Railway 35 MGA94_54 5224112 645137396 26701 -60 1329 RC5
80BGH06 Big Hill 6804 MGA94_54 520880 6449472 299 -60 1707 RCDDH3 5880BGH08 Big Hill 797 MGA94_54 52076879 644939093 29629 -60 1267 RCDDH3 69980BGH07 Big Hill 23 MGA94_54 52113656 6449599 27411 -60 1777 RC5
93MGM01 Pyrite Hill 70 MGA94_54 51818544 644971377 28628 -60 2228 RDDH4 2493MGM02 Pyrite Hill 180 MGA94_54 51851545 644945467 28479 -60 2588 RDDH4 4811PHR01 Pyrite Hill 150 MGA94_54 51843547 644907276 28534 -60 27906 RC5
11PHR02 Pyrite Hill 198 MGA94_54 51849992 644915931 28379 -60 27906 RC5
11PHR03 Pyrite Hill 240 MGA94_54 5185603 644918961 28026 -60 27906 RC5
11PHR04 Pyrite Hill 186 MGA94_54 51852863 6449257 28403 -60 27906 RC5
11PHR05 Pyrite Hill 234 MGA94_54 51858425 644939762 28022 -60 25906 RC5
11PHR06 Pyrite Hill 180 MGA94_54 5184909 644952259 28402 -60 23406 RC5
11PHR07 Pyrite Hill 174 MGA94_54 51841347 64495929 28286 -60 21906 RC5
11PHR08 Pyrite Hill 180 MGA94_54 51834274 644965585 28288 -60 21806 RC5
11PSR01 Pyrite Hill 59 MGA94_54 51874273 6448864 26838 -60 25806 RC5
11PSR02 Pyrite Hill 132 MGA94_54 51871938 644896001 27041 -60 25506 RC5
11PSR03 Pyrite Hill 78 MGA94_54 51868699 644905535 27279 -60 25506 RC5
12BER01 Railway 157 MGA94_54 52166731 644989323 27769 -60 141 RC5
12BER02 Railway 132 MGA94_54 52121267 644969067 27353 -60 162 RC5
12BER03 Railway 151 MGA94_54 52187901 645043547 28859 -60 102 RC5
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 26
Historic down-hole information (continued)
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
12BER04 Railway 148 MGA94_54 52235392 645126835 27435 -60 131 RC5
12BER05 Railway 145 MGA94_54 52243947 645116784 29973 -60 124 RC5
12BER06 Railway 169 MGA94_54 52248137 645109135 29595 -60 118 RC5
12BER07 Railway 115 MGA94_54 52232372 645074875 27791 -60 144 RC5
12BER08 Railway 193 MGA94_54 52222079 64508118 27316 -60 129 RC5
12BER09 Railway 13975 MGA94_54 52210125 645088144 27591 -60 129 RC5
12BER10 Railway 151 MGA94_54 52195345 645071618 28449 -60 129 RC5
12BER11 Railway 193 MGA94_54 52273722 645137661 26583 -60 153 RC5
12BER12 Railway 111 MGA94_54 52290973 645151676 27736 -60 153 RC5
12BER13 Railway 205 MGA94_54 52288381 645155754 27103 -60 156 RC5
12BER14 Railway 151 MGA94_54 52312483 645163707 28836 -60 152 RC5
12BER15 Railway 109 MGA94_54 5233113 64518417 28395 -60 154 RC5
12BER16 Railway 115 MGA94_54 52299408 645159199 27595 -60 156 RC5
12BER17 Railway 1155 MGA94_54 5225165 645131494 2691 -60 153 RC5
12BER18 Railway 157 MGA94_54 52233275 645128131 27229 -60 129 RC5
12BER19 Railway 97 MGA94_54 52224055 645106715 27616 -60 135 RC5
12BER20 Railway 120 MGA94_54 52129169 644973363 27695 -60 165 RC5
13BED01 Railway 3492 MGA94_54 52248021 645109243 29601 -60 3007 DDH1
16DM01 Pyrite Hill 1616 MGA94_54 51841138 644959389 28269 -60 2155 DDH1
16DM02 Pyrite Hill 1834 MGA94_54 51852662 644926158 28418 -60 2850 DDH1
16DM03 Big Hill 1265 MGA94_54 5210371 644956749 28301 -60 1585 DDH1
16DM04 Big Hill 1054 MGA94_54 52081474 64494644 29618 -55 1285 DDH1
16DM05 Railway 2465 MGA94_54 5221037 645088187 27662 -60 1285 DDH1
16DM06 Railway 1604 MGA94_54 52291157 645151913 2785 -60 1525 DDH1
16DM07 Railway 2425 MGA94_54 52299526 645159826 27636 -60 1561 DDH1
16DM08 Railway 2585 MGA94_54 52235145 645127307 27385 -60 1309 DDH1
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 27
Down hole length and interception depth ndash 2017 holes
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THD01 34 123 89 982 94 87
including 35 41 6 1143 119 106
and 50 55 5 1311 131 115
and 81 122 41 1366 118 11
17THD02 47 134 87 911 88 92
including 48 77 29 1238 111 114
and 116 134 18 1199 110 111
17THD03 40 635 235 894 116 108
including 49 63 14 1076 143 124
17THD04 20 29 9 1033 86 872 96 24 703 88 81
17THD05 44 60 16 993 98 85
including 44 56 12 1094 109 94
71 76 5 840 64 6317THD06 39 85 46 1136 114 101
including 40 70 30 1227 122 104
and 76 85 9 1148 107 100
17THD07 15 128 113 879 81 88
including 47 55 8 1048 117 103
and 61 102 41 1452 125 123
142 152 10 704 6 102199 204 5 706 49 65
17THR001 27 63 36 1075 106 104
including 37 63 26 1280 119 115
75 84 9 755 91 139
17THR002 37 43 6 711 69 82
91 136 45 983 98 105
including 102 136 34 1190 117 118
17THR003 4 59 55 937 93 94
including 10 46 36 1212 116 110
17THR004 49 146 97 888 102 102
including 51 113 62 1051 114 113
17THR005 52 72 20 1053 128 126
including 53 63 10 1145 125 130
17THR006 14 74 60 754 86 87
including 17 44 27 1176 125 121
17THR007 5 22 17 837 0 125
including 12 19 7 1049 0 105
128 154 26 1034 114 115
including 128 146 18 1321 144 143
17THR008 37 78 41 1319 122 11217THR009 29 65 36 957 94 92including 34 60 26 1150 111 102
100 105 5 833 129 12717THR010 51 57 6 729 49 5317THR011 30 83 53 1116 12 109
including 31 62 31 1423 155 135
17THR012 50 117 67 748 75 86
including 59 67 8 1084 103 126
and 75 102 27 1120 110 113
172 177 5 725 64 64
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 28
Down hole length and interception depth ndash 2017 holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THR013 19 73 54 888 54 5
including 19 29 10 2576 88 77
17THR014 12 45 33 749 81 74
including 25 33 8 1148 113 94
17THR015 40 48 8 995 89 8117THR016 66 115 49 1096 129 134
including 66 81 15 1184 142 139
and 89 114 25 1183 134 141
17THR017 54 112 58 1383 132 128
including 56 85 29 2042 183 158
17THR018 47 63 16 1124 151 14117THR019 42 59 17 1032 107 114
17THR020 29 49 20 1067 116 115
including 29 36 7 1352 135 126
17THR021 44 64 20 1204 131 12717THR022 101 138 37 1152 107 1217THR023 91 137 46 1271 139 133
including 91 97 6 1953 187 166
and 114 125 11 2707 311 265
17THR027 29 54 25 1176 126 118
including 30 47 17 1382 141 125
Down hole length and interception depth ndash historic holes
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
11PHR02 74 114 40 875 108 116
11PHR03 150 162 12 750 83 96
11PHR03 163 190 27 732 106 119
11PHR03 206 227 21 988 117 13
11PHR04 124 172 48 1049 128 129
11PHR05 197 219 22 1138 107 133
11PHR06 104 135 31 854 83 115
11PHR06 155 171 16 1315 12 122
11PHR07 96 147 51 941 95 99
11PHR08 103 115 12 1417 139 148
11PHR08 126 144 18 1048 126 142
12BER01 115 139 24 768 72 74
12BER02 18 25 7 1062 103 93
12BER02 113 123 10 907 85 86
12BER04 41 90 49 1191 114 127
12BER04 121 126 5 1241 9 112
12BER05 33 39 6 1109 79 92
12BER05 65 76 11 721 63 66
12BER06 131 169 38 844 83 128
12BER07 38 43 5 704 10 101
12BER09 33 92 59 841 9 116
12BER11 31 62 31 738 84 126
12BER11 92 159 67 1061 10 131
12BER11 173 193 20 737 67 83
12BER12 27 81 54 1430 181 189
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 29
Down hole length and interception depth ndash historic holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
12BER13 21 42 21 761 74 91
12BER13 65 75 10 1882 204 216
12BER14 28 55 27 1013 125 129
12BER16 25 100 75 1008 106 107
12BER17 92 99 7 739 6 63
12BER18 117 157 40 1017 112 114
12BER19 34 56 22 1151 104 108
12BER19 68 75 7 780 61 6
12BER20 21 46 25 731 69 75
13BED01 266 2915 255 872 85 78
16DM01 96 147 51 851 91 86
16DM02 127 172 45 1118 138 136
16DM03 104 111 7 838 103 9
16DM04 91 99 8 887 91 84
16DM05 30 103 73 793 82 9
16DM05 199 211 12 830 251 221
16DM06 28 84 56 1280 162 167
16DM06 138 146 8 722 78 112
16DM07 35 60 25 1232 111 111
16DM07 71 104 33 1224 133 134
16DM08 76 100 24 1026 11 12
16DM08 165 177 12 921 122 126
17THD01 34 123 89 982 94 87
17THD02 47 134 87 911 88 92
17THD03 40 635 235 894 116 108
17THD04 20 29 9 1033 86 8
17THD04 72 96 24 703 88 81
17THD05 44 60 16 993 98 85
17THD05 71 76 5 840 64 63
17THD06 39 85 46 1136 114 101
17THD07 15 128 113 879 81 88
17THD07 142 152 10 704 6 102
17THD07 199 204 5 706 49 65
17THR001 27 63 36 1075 106 104
17THR001 75 84 9 755 91 139
17THR002 37 43 6 711 69 82
17THR002 91 136 45 983 98 105
17THR003 4 59 55 937 93 94
17THR004 49 146 97 888 102 102
17THR005 52 72 20 1053 128 126
17THR006 14 74 60 754 86 87
17THR007 5 22 17 837 0 125
17THR007 128 154 26 1034 114 115
17THR008 37 78 41 1319 122 112
17THR009 29 65 36 957 94 92
17THR009 100 105 5 833 129 127
17THR010 51 57 6 729 49 53
17THR011 30 83 53 1116 12 109
17THR012 50 117 67 748 75 86
17THR012 172 177 5 725 64 64
17THR013 19 73 54 888 54 5
17THR014 12 45 33 749 81 74
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 30
Down hole length and interception depth ndash historic holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THR015 40 48 8 995 89 81
17THR016 66 115 49 1096 129 134
17THR017 54 112 58 1383 132 128
17THR018 47 63 16 1124 151 141
17THR019 42 59 17 1032 32 114
17THR020 29 49 20 1067 116 115
17THR021 44 64 20 1204 131 127
17THR022 101 138 37 1152 107 12
17THR023 91 137 46 1271 139 133
17THR027 29 54 25 1176 126 118
67TH01 12344 20001 7657 979 0 0
70BH01 3962 5334 1372 3323 31 0
70BH01 6431 8443 2012 1203 95 0
70BH02 7406 8686 128 704 75 0
70TH02 78 841 61 1666 175 154
70TH02 871 1021 15 1661 8 72
70TH03 777 1295 518 1016 129 132
80BGH05 39 49 10 752 0 0
80BGH06 18 6804 5004 969 0 0
80BGH08 44 7815 3415 939 0 0
80PYH01 75 17 95 725 0 0
80PYH02 341 4825 1415 1121 0 0
80PYH03 23 35 12 711 0 0
80PYH04 3975 55 1525 735 0 0
80PYH05 367 65 283 1160 118 0
80PYH06 54 62 8 905 0 0
80PYH07 67 794 124 1113 125 0
80PYH10 4845 1374 8895 831 86 0
80PYH11 346 465 119 916 8 0
80PYH11 572 9105 3385 1239 106 0
80PYH12 302 365 63 791 102 0
80PYH12 8515 908 565 857 146 0
80PYH14 2518 2734 216 1252 131 0
93MGM02 85 160 75 941 85 0
98TC01 20 47 27 744 91 126
98TC01 48 71 23 917 119 164
98TC03 34 45 11 1480 55 6
98TC03 68 79 11 1095 43 42
98TC04 84 94 10 966 39 4
98TC04 107 133 26 771 77 82
98TC05 24 62 38 754 64 7
98TC06 66 72 6 727 104 111
98TC06 76 101 25 767 101 106
98TC07 35 46 11 1546 165 171
98TC07 61 82 21 728 91 94
98TC09 32 39 7 716 49 174
98TC09 82 107 25 732 6 67
98TC10 101 125 24 732 79 8
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Criteria JORC Code Explanation Commentary
Data aggregation methods
a In reporting Exploration Results weighting averaging techniques maximum andor minimum grade truncations (eg cutting of high grades) and cut-off grades are usually Material and should be stated
a Where aggregate intercepts incorporate short lengths of high grade results and longer lengths of low grade results the procedure used for such aggregation should be stated and some typical examples of such aggregations should be shown in detail
a The assumptions used for any reporting of metal equivalent values should be clearly stated
Drilling a Drill hole intercept grades are typically reported as down-hole
length-weighted averages with any non-recovered sample within the reported intervals treated as no grade The cut-off used for selecting significant intersections is selected to reflect the overall tenor of mineralisation in most cases 500ppm cobalt
a No top cuts have been applied when calculating average grades for reported significant intersections
a No metal equivalent values are reported
Relationship between mineralis- ation widths and intercept lengths
a These relationships are particularly important in the reporting of Exploration Results
a If the geometry of the mineralisation with respect to the drillhole angle is known its nature should be reported
a If it is not known and only the down hole lengths are reported there should be a clear statement to this effect (eg lsquodown hole length true width not knownrsquo)
a Drill holes at the Thackaringa project are typically angled at 50deg or 60deg and drilled perpendicular to the mineralised trend with drilling orientations adjusted along strike to accommodate folded geological sequences
a Mineralisation at the Big Hill and Railway prospects is steeply dipping and consequently mineralised intersections will be greater than true width At Pyrite Hill mineralisation is gently dipping and mineralised intersections will be close to true width
a There is insufficient geological knowledge to accurately estimate true widths and as such all drill intersections are reported as down hole lengths
Diagrams a Appropriate maps and sections (with scales) and tabulations of intercepts should be included for any significant discovery being reported These should include but not be limited to a plan view of drill hole collar locations and appropriate sectional views
a Appropriate maps and sections are presented in the accompa-nying ASX release
Balanced reporting
a Where comprehensive reporting of all exploration results is not practicable representative reporting of both low and high grades andor widths should be practiced to avoid misleading reporting of Exploration Results
a Only mineralised drill hole intersections regarded as highly anomalous and of economic interest are reported The proportion of each hole represented by the reported intervals can be ascertained from the sum of the reported intervals divided by the total drill hole depth
a All assay results for drill holes included in the various Mineral Resource estimates have been considered and comprise results not necessarily regarded as anomalous
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 32
Criteria JORC Code Explanation Commentary
Other substantive exploration data
a Other exploration data if meaningful and material should be reported including (but not limited to) geological obser-vations geophysical survey results geochemical survey results bulk samples ndash size and method of treatment metallurgical test results bulk density groun d- water geotechnical and rock characteristics potential deleterious or contaminating substances
a No further exploration data is deemed material to the results presented in this release
Further work a The nature and scale of planned further work (eg tests for lateral extensions or depth extensions or large-scale step-out drilling)
a Diagrams clearly highlighting the areas of possible extensions including the main geological interpretations and future drilling areas provided this information is not commercially sensitive
a The nature and scale of planned further work will be determined following the completion of revised Mineral Resource estimation for the Thackaringa deposits scheduled for May 2017
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 16
Criteria JORC Code Explanation Commentary
Logging a Whether core and chip samples have been geologically and geotechnically logged to a level of detail to support appropriate Mineral Resource estimation mining studies and metallurgical studies
a Whether logging is qualitative or quantitative in nature Core (or costean channel etc) photography
a The total length and percentage of the relevant intersections logged
a A qualified geoscientist has logged all reported drill holes in their entirety This logging has been completed to a level of detail considered to accurately support Mineral Resource estimation and metallurgical studies The parameters logged include lithology alteration mineralisation and oxidation These parameters are both qualitative and quantitative in nature
a Diamond drilling completed in 2017 by BPL has been subject to geotechnical logging with parameters recorded including rock-quality designation (RQD) fracture frequency and hardness
a During 2013 a considerable amount of historical drilling was re-logged through review of available core stored at Broken Hill as well the re-interpretation of historical reports where core or percussion samples no longer exist A total of eight (8) diamond drill holes and sixteen (16) diamond drill holes with pre-collars were re-logged as detailed below
Hole ID Deposit Max Depth Hole TypePre-Collar Depth (m)
67TH01 Pyrite Hill 3042 DDH1 ndash
70TH02 Pyrite Hill 1486 DDH1 ndash
70TH03 Pyrite Hill 1414 DDH1 ndash
70BH01 Big Hill 1027 DDH1 ndash
70BH02 Big Hill 1039 DDH1 ndash
80PYH13 Pyrite Hill 77 DDH1 ndash
80PYH14 Pyrite Hill 3003 DDH1 ndash
80BGH09 Big Hill 1005 DDH1 ndash
80PYH01 Pyrite Hill 2453 PDDH2 6
80PYH02 Pyrite Hill 513 PDDH2 3358
80PYH04 Pyrite Hill 55 PDDH2 387
80PYH05 Pyrite Hill 936 PDDH2 18
80PYH06 Pyrite Hill 855 PDDH2 18
80PYH07 Pyrite Hill 945 PDDH2 12
80PYH08 Pyrite Hill 110 PDDH2 8
80PYH09 Pyrite Hill 1005 PDDH2 8
80PYH10 Pyrite Hill 1453 PDDH2 255
80PYH11 Pyrite Hill 1031 PDDH2 18
80PYH12 Pyrite Hill 1095 PDDH2 42
80BGH05 Big Hill 5486 RCDDH3 455
80BGH06 Big Hill 6804 RCDDH3 58
80BGH08 Big Hill 797 RCDDH3 699
93MGM01 Pyrite Hill 70 RDDH4 24
93MGM02 Pyrite Hill 180 RDDH4 48
1 Diamond drill hole2 Diamond drill hole with percussion pre-collar3 Diamond drill hole with reverse circulation pre-collar4 Diamond drill hole with rotary air blast pre-collar
a Litho-geochemistry has been used to verify geological logging where available for drilling completed by Broken Hill Prospecting post 2010
a Representative reference trays of chips from reverse circulation drilling completed post 2010 have been retained by Broken Hill Prospecting
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 17
Criteria JORC Code Explanation Commentary
Sub-sampling techniques and sample preparation
a If core whether cut or sawn and whether quarter half or all core taken
a If non-core whether riffled tube sampled rotary split etc and whether sampled wet or dry
a For all sample types the nature quality and appropriateness of the sample preparation technique
a Quality control procedures adopted for all sub-sampling stages to maximise representivity of samples
a Measures taken to ensure that the sampling is representative of the in situ material collected including for instance results for field duplicatesecond-half sampling
a Whether sample sizes are appropriate to the grain size of the material being sampled
Diamond Drilling (DD)Pre-1990a Core samples were hand-split or sawn with re-logging of available
historical core (see Logging) indicating a 7030 (retainedassayed) split was typical The variation of sample ratios noted are consid-ered consistent with the sub-sampling technique (hand-splitting)
a No second half samples were submitted for analysis a It is considered water used for core cutting is unprocessed and
unlikely to have introduced sample contamination a Procedures relating to the definition of the line of cutting or splitting
are not available It is expected that lsquostandard industry practicersquo for the period was applied to maximize sample representivity
Post-1990 a NQ drilling core was sawn with half core submitted for assay a HQ drilling core was sawn with quarter core submitted for assay a No second half samples were submitted for analysis a It is considered water used for core cutting is unprocessed and
unlikely to have introduced sample contamination a Procedures relating to the definition of the line of cutting or splitting
are not available It is expected that lsquostandard industry practicersquo for the period was applied to maximise sample representivity
2016 Metallurgical Drilling a All HQ drill core was sawn into halves with each half then re-sawn
to provide 4 lengths of quarter core for each interval a One half core was submitted for assay a One quarter core was submitted for metallurgical test work a One quarter core was retained for archive a It is considered that the water used for core cutting is most
unlikely to have introduced sample contamination a Sample sawing and processing for test work were undertaken
according to lsquostandard industry practicersquo to maximise sample representivity
2017 Diamond Drilling a All HQ drill core was sawn into halves with each half then re-sawn to
provide 4 lengths of quarter core for each interval
a One quarter ndash one half core was submitted for assay
a One quarter ndash three quarter core was retained for archive
a It is considered that the water used for core cutting is most unlikely to have introduced sample contamination
a Sample sawing and processing for test work were undertaken according to lsquostandard industry practicersquo to maximise sample representivity
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 18
Criteria JORC Code Explanation Commentary
Sub-sampling techniques and sample preparation (continued)
Historical Reverse Circulation Drilling a Sub-sampling of reverse circulationpercussion chips was
achieved using a cyclone with cone or riffle splitter a During drilling operations the sample cyclone and splitter were
regularly cleaned to prevent down hole sample contamination a Dry sampling was achieved with the use of adequate air using a
compressor and booster where groundwater was encountered a During reverse circulation drilling completed by Broken Hill
Prospecting duplicate samples were collected at the time of drilling These were obtained by spearing the bulk material held in the PVC sacks using a spear made of 40mm diameter PVC pipe three samples were speared through the full depth of the bulk material and these were combined to form one sample
a The Thackaringa drilling database includes a total of 139 field duplicates collected during reverse circulation drilling This reflects a ratio of approximately one field duplicate in every 32 samples (31) for drill holes where duplicates were collected (31 drill holes for 4469 metres) and an overall ratio of one field duplicate in every 42 samples (24) for all reverse circulation drill holes (43 drill holes for 58015 metres)
a Statistical analysis of field duplicates collected during drilling completed by Broken Hill Prospecting (119 duplicates representing 86 of all field duplicates) considered 18 elements of which only chromium lanthanum and titanium show some bias in the duplicate samples For cobalt the confidence limits were evenly placed either side of zero and the duplicates are deemed to be representative of the original samples
2017 Reverse Circulation Drilling a Sub-sampling of reverse circulationpercussion chips was achieved
using a riffle splitter
a During drilling operations the splitter was regularly cleaned to prevent down hole sample contamination
a Dry sampling was achieved with the use of adequate air using a compressor and booster where groundwater was encountered
a During reverse circulation drilling completed by Broken Hill Prospecting duplicate samples were collected at the time of drilling These were obtained by riffle splitting the remnant bulk sample following collection of the primary split
a Field duplicate samples were collected regularly during drilling (for every 18th sample on average)
a Assay results received to date include analysis of 120 field duplicate pairs from 24 RC drill holes
a A measure of the average precision of the sampling sample preparation and assaying methods given by the mean per cent difference (MPD) assay values of the duplicate pairs is summarised below Overall the sampling and assay precision for Co Fe and S at economically significant grades is regarded as reasonable
RC Field Duplicate Pairs
Co Cut-Off Count Co MPD S MPD Fe MPD
All 120 13 16 9
200ppm 52 13 11 10
500ppm 34 12 9 9
1000ppm 20 8 7 7
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 19
Criteria JORC Code Explanation Commentary
Quality of assay data and laboratory tests
a The nature quality and appropriateness of the assaying and laboratory procedures used and whether the technique is considered partial or total
a For geophysical tools spectrometers handheld XRF instruments etc the parameters used in determining the analysis including instrument make and model reading times calibrations factors applied and their derivation etc
a Nature of quality control proce-dures adopted (eg standards blanks duplicates external laboratory checks) and whether acceptable levels of accuracy (ie lack of bias) and precision have been established
a The nature and quality of all assaying and laboratory procedures employed for samples obtained through drilling (diamond and reverse circulation) are considered lsquoindustry standardrsquo for the respective periods
a The assay techniques employed for drilling (diamond and reverse circulation) include mixed acid digestion with ICP-OES and AAS finishes These methods are considered appropriate for the targeted mineralisation and regarded as a lsquonear totalrsquo digestion technique with resistive phases not expected to affect cobalt analyses
a All samples have been processed at independent commercial laboratories including AMDEL Australian Laboratory Services (ALS) Analabs and Genalysis
a All samples from drilling completed by Broken Hill Prospecting during 2011-2012 were assayed at ALS in Orange New South Wales All samples from drilling completed by Broken Hill Prospecting during 2016-2017 were assayed at ALS Adelaide South Australia ALS is a NATA Accredited Laboratory and qualifies for JASANZ ISO90012008 quality systems ALS maintains robust internal QAQC procedures (including analysis of standards repeats and blanks)
a To monitor the accuracy of assay results from the 2017 Thackaringa drilling CRM standards were included in the assay sample stream every 24 samples (on average) for RC chips and every 30 samples for diamond core The CRM samples were purchased from Ore Research amp Exploration Pty Ltd and the results are summarised below
Cobalt Sulphur Iron
OREAS Standard Count plusmn1SD plusmn2SD plusmn3SD plusmn3SD+ plusmn1SD plusmn2SD plusmn3SD plusmn3SD+ plusmn1SD plusmn2SD plusmn3SD plusmn3SD+
160 Low S Blank (28ppm Co) 12 10 ndash ndash 2 7 ndash ndash 5 6 2 2 2
162 Medium Grade (631ppm Co) 53 37 12 3 ndash 32 18 3 ndash 14 12 13 14
163 Low Grade (230ppm Co) 40 30 8 2 ndash 7 25 7 1 2 3 2 33
165 High Grade (2445ppm Co) 13 11 2 ndash ndash 7 5 1 ndash 1 5 2 5
166 High Grade (1970ppm Co) 35 26 8 ndash 1 27 6 ndash 2 9 5 5 16
153 114 30 5 3 80 54 11 8 32 27 24 70
75 20 3 2 52 35 7 5 21 18 16 46
Cobalt CRM Standards
Internal COB assay QAQC protocols cobalt performed well with 95 standard analyses falling within two standard deviations of the certified value and 75 within one SD No systematic out-of-specification trends were identified and there was no discernible tendency for a particular Co standard to preferentially assay either higher or lower than the certified Co concentration
Cobalt Blanks
A number of blanks were also submitted with the RC chip and diamond core samples mdash the OREAS160 CRM is essentially a low-sulphide blank with respect to cobalt (28ppm) and the results of assay of this standard are summarised in Table 1 In addition five quartz sand blanks were submitted bracketing very pyrite-rich intervals in diamond drill holes 17THD06 and 17THD07 Overall the quartz sand blanks returned a maximum of 69ppm Co 004 S and 065 Fe which are regarded as similar to background values and any contamination during sample preparation at the assay laboratory is likely to be immaterial to the final results
Based on the assay of standards and blanks with 95 of the Co results falling within two standard deviations of the certified value it is concluded that the assay results for Co are likely to be representative for the material submitted with no additional source of inaccuracy or bias identified
Sulphur CRM Standards
sulphur was reasonably well-performed with 87 of the total 153 standard analyses falling within two standard deviations of the certified value and 95 within 3SD
Iron CRM Standards
Iron analysis of standards showed poor accuracy with a tendency to assay low mdash 46 of the assays fall outside of 3 SD typically but not exclusively lower than the certified value
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 20
Criteria JORC Code Explanation Commentary
Verification of sampling and assaying
a The verification of significant intersections by either inde-pendent or alternative company personnel
a The use of twinned holes
a Documentation of primary data data entry procedures data verification data storage (physical and electronic) protocols
a Discuss any adjustment to assay data
a Historical drilling intersections were internally verified by personnel employed by previous explorers including CRAE Pty Limited Central Austin Pty Limited and Hunter Resources Broken Hill Prospecting has completed a systematic review of the related data
a The Thackaringa drilling database exists in electronic form as a Microsoft Access database Information related to individual drill holes is stored in digital files as extracted from historical reports (typically including location plan section logs photos surveys assays and petrology)
a Historical drilling data available in electronic form has been re-formatted and imported into the drilling database
a Quantitative historical drilling data including assays have been captured electronically during systematic data compilation and validation completed by Broken Hill Prospecting
a Samples returning assays below detection limits are assigned half detection limit values in the database
a All significant intersections are verified by the Companyrsquos Exploration Manager and independent geological consultant
Location of data points
a Accuracy and quality of surveys used to locate drill holes (collar and down-hole surveys) trenches mine workings and other locations used in Mineral Resource estimation
a Specification of the grid system used
a Quality and adequacy of topographic control
a Historical drill collars have been relocated and surveyed using a differential GPS (DGPS) In the instances where no collar could be located the position has been derived from georeferenced historical plans
a During systematic data validation completed in 2016 three drill holes at Big Hill were found to be incorrectly located One collar was located and surveyed by GPS and two were digitised from georeferenced historical plans (reported to the nearest metre) as the collars had been destroyed These corrections were captured in the Big Hill Mineral Resource estimate
a Down hole surveys using digital cameras were completed on all post 2000 drilling Down hole surveys for some earlier drilling were estimated from hole trace and section data where raw survey data was not reported
a All 2017 Thackaringa drill hole collars were located and surveyed with DGPS by an independent surveyor with reported accuracy of plusmn005m in horizontal and vertical measurement
a Downhole surveys using digital cameras were completed on all 2017 drill-holes
a All data is recorded in the GDA94 datum UTM Zone 54 (MGA54)
a 3D validation of drilling data has been completed by independent geological consultants to support detailed geological modelling in Microminetrade software
a The quality of topographic control is deemed adequate in consideration of the results presented in this release
Data spacing and distribution
a Data spacing for reporting of Exploration Results
a Whether the data spacing and distribution is sufficient to estab-lish the degree of geological and grade continuity appropriate for the Mineral Resource and Ore Reserve estimation procedure(s) and classifications applied
a Whether sample compositing has been applied
a The data density of existing drill holes at Thackaringa has been materially increased by the 2017 drilling program which was undertaken primarily to undertake infill drilling
a Detailed geological mapping supported by drill-hole data of sufficient spacing and distribution to establish a 3D geological model
a The level of geological and grade continuity is appropriate for the Mineral Resource estimation methodologies used and the classifications applied (being wholly Inferred Mineral Resources) Note that a recalculation of the Mineral Resource using 2017 drilling and assay data will commence in mid-2017
a No sample compositing has been applied to reported intersections
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 21
Criteria JORC Code Explanation Commentary
Orientation of data in relation to geological structure
a Whether the orientation of sampling achieves unbiased sampling of possible structures and the extent to which this is known considering the deposit type
a If the relationship between the drilling orientation and the orientation of key mineralised structures is considered to have introduced a sampling bias this should be assessed and reported if material
a The 2017 drill holes at the Thackaringa project were typically angled at -500 or -600 to the horizontal and drilled perpendicular to the mineralised trend with drilling orientations adjusted along strike to accommodate folded geological sequences
a Mineralisation at the Big Hill and Railway prospects is steeply dipping and consequently mineralised intersections will be greater than true width At Pyrite Hill mineralisation is gently dipping and mineralised intersections will be close to true width
a The drilling orientation is not considered to have introduced a sampling bias on assessment of the current geological interpretation
Sample security
a The measures taken to ensure sample security
a Sample security procedures are considered to be lsquoindustry standardrsquo for the respective periods
a Following recent drilling completed by BPL samples were trucked by an independent courier directly from Broken Hill to ALS Adelaide
a BPL consider that risks associated with sample security are limited given the nature of the targeted mineralisation
Audits or reviews
a The results of any audits or reviews of sampling techniques and data
a In late 2016 an independent validation of the Thackaringa drilling database was completed
a The data validation process consisted of systematic review of drilling data (collars assays and surveys) for identification of transcription errors
a Following review historical drill hole locations were also validated against georeferenced historical maps to confirm their location
a Three (3) drill holes at Big Hill were found to be incorrectly located One collar was located and surveyed by GPS and two were digitised from georeferenced historical plans (reported to the nearest metre) as the collars had been destroyed These corrections were captured in the Big Hill Mineral Resource estimate
a Total depths for all holes were checked against original reports
a Final 3D validation of drilling data has been completed by independent geological consultants to support detailed geological modelling in Microminetrade software
a Audits and reviews of QAQC results and procedures are further described in preceding sections of this table including Quality of assay data and laboratory tests Sub-sampling techniques and sample preparation and Logging
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 22
Section 2 Reporting of Exploration Results(Criteria listed in the preceding section also apply to this section)
Criteria JORC Code Explanation Commentary
Mineral tenement and land tenure status
a Type reference namenumber location and ownership including agreements or material issues with third parties such as joint ventures partnerships overriding royalties native title interests historical sites wilderness or national park and environmental settings
a The security of the tenure held at the time of reporting along with any known impediments to obtaining a licence to operate in the area
a The Thackaringa Cobalt project is located approximately 25 kilometres west-southwest of Broken Hill and comprises four tenements with a total area of 63 km2
Tenement
Registered amp Beneficial Holder Minerals Grant Date Expiry Date
Annual Expenditure
Commit-ment
EL6622 Broken Hill Prospecting Limited (BPL)
Group 1 30082006 29082017 $47000
EL 8143 BPL Group 1 26072013 26072017 $14000
ML86 BPL Cobalt iron nickel platinum sulphur
05111975 04112017 $75000
ML87 BPL Cobalt iron nickel platinum sulphur
05111975 04112017 $75000
a The project tenure is subject to a Farm-In agreement between Cobalt Blue Holdings Limited (COB) and Broken Hill Prospecting Limited (BPL) The nature of this agreement is detailed in the COB Replacement Prospectus (as released 4 January 2017)
a The nearest residence (Thackaringa Station) is located approxi-mately three kilometres west of EL6622
a EL6622 is intersected by the Transcontinental Railway the Barrier Highway is located the north of the licence boundaries
a The majority of the project tenure is covered by Western Lands Lease which is considered to extinguish native title interest However Native Title Determination NC9732 (Barkandji Traditional Owners 8) is current over the area and may be relevant to Crown Land parcels (eg public roads) within the project area
a The project tenure is more than 90 kilometres from the nearest National Park and or Wilderness Area (Kinchega National Park) and approximately 20 kilometres south of the nearest Water Supply Reserve (Umberumberka Reservoir Water Supply Reserve)
a The Company is not aware of any impediments to obtaining a licence to operate in the area
Exploration done by other parties
a Acknowledgment and appraisal of exploration by other parties
a A detailed and complete record of all exploration activities undertaken prior to the BPL 2016 drilling program is appended to the JORC Table 1 which forms part of the Cobalt Blue Prospectus Document available on the COB website
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 23
Criteria JORC Code Explanation Commentary
Geology a Deposit type geological setting and style of mineralisation
Regional Geological Setting a The Thackaringa project is located in a deformed and metamor-
phosed Proterozoic supracrustal succession named the Willyama Supergroup which crops out as several inliers in western New South Wales including the Broken Hill Block (Willis et al 1982)
a Exploration by BPL Limited has been focused on the discovery of cobaltiferous pyrite deposits and Broken Hill type base-metal mineralisation both of which are known from historical exploration in the district
a The project area covers portions of the Broken Hill and Thackaringa group successions which host the majority of mineralisation in the region including the Broken Hill base-metal deposit The Sundown Group suite is also present The extensive sequence of quartz-albite-plagioclase rock that hosts the cobaltiferous pyrite mineralisation is interpreted as belonging to the Himalaya Formation which is stratigraphically at the top of the Thackaringa Group
Local Geological Setting a The oldest rocks in the region belong to the Curnamona Craton
which outcrops on the Broken Hill and Euriowie blocks a The overlying Proterozoic rocks have been broadly subdivided
into three major groupings of which the oldest groups are the highly deformed metasediments and igneous derived rocks of the Thackaringa and Broken Hill groups They comprise a major part of the Willyama Supergroup and host the giant Broken Hill massive Pb-Zn-Ag sulphide ore body EL6622 is within the Broken Hill block of the Curnamona Craton
Mineralisation Style a The Thackaringa Mineral deposits (Pyrite Hill Big Hill and Railway)
are characterised by large tonnage cobaltiferous-pyrite minerali-sation hosted within siliceous albitic gneisses and schists of the Himalaya Formation
a Cobalt mineralisation exists within stratabound pyritic horizons where cobalt is present within the pyrite lattice Mineralogical studies have indicated the majority of cobalt (~85) is found in solid solution with primary pyrite (Henley 1998)
a A strong correlation between pyrite content and cobalt grade is observed
a The regional geological setting indicates additional mineralisation targets including
a Stratiform Broken Hill Type (BHT) Copper-Lead-Zinc-Silver deposits
a Copper-rich BHT deposits a Stratiform to stratabound Copper-Cobalt-Gold deposits a Epigenetic Gold and Base metal deposits
Drill hole Information
a A summary of all information mat- erial to the understanding of the exploration results including a tab- ulation of the following information for all Material drill holes
a easting and northing of the drill hole collar
a elevation or RL (Reduced Level ndash elevation above sea level in metres) of the drill hole collar
a dip and azimuth of the hole
a down hole length and interception depth
a See drill holle summaries below
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 24
Drill hole summaries
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
17THD01 Pyrite Hill 1242 MGA54 518382 6449551 28906 -40 222 DDH1
17THD02 Pyrite Hill 1497 MGA54 518475 6449445 29054 -40 258 DDH1
17THD03 Pyrite Hill 785 MGA54 518370 6449190 30328 -40 2851 DDH1
17THD04 Big Hill 1198 MGA54 521078 6449589 27841 -45 1551 DDH1
17THD05 Big Hill 995 MGA54 521669 6449889 2785 -40 131 DDH1
17THD06 Railway 1655 MGA54 521970 6450705 2872 -45 128 DDH1
17THD07 Railway 2746 MGA54 522569 6451282 27067 -45 1565 DDH1
17THD08 Railway 1325 MGA54 522784 6451280 268881 -45 326 DDH1
17THD09 Railway 1205 MGA54 522905 6451511 278471 -40 1525 DDH1
17THD10 Railway 842 MGA54 522992 6451569 279779 -45 130 DDH1
17THD11 Railway 1115 MGA54 523109 6451682 280847 -40 1605 DDH1
17THD12 Railway 1265 MGA54 522796 6451419 272936 -40 14075 DDH1
17THD13 Railway 1055 MGA54 522836 6451456 276747 -40 1385 DDH1
17THD14 Pyrite Hill 99 MGA54 518375 6449089 29425 -60 285 DDH1
17THR001 Railway 156 MGA54 522615 6451277 267561 -60 120 RC5
17THR002 Railway 160 MGA54 522573 6451299 268511 -60 120 RC5
17THR003 Railway 96 MGA54 522124 6450868 27739 -60 130 RC5
17THR004 Railway 150 MGA54 522387 6451319 271453 -60 120 RC5
17THR005 Railway 72 MGA54 522024 6450783 282154 -60 120 RC5
17THR006 Railway 114 MGA54 522049 6450780 28401 -58 125 RC5
17THR007 Railway 180 MGA54 521965 6450699 286585 -59 125 RC5
17THR008 Railway 132 MGA54 521917 6450562 291682 -56 105 RC5
17THR009 Railway 120 MGA54 521906 6450496 292751 -58 105 RC5
17THR010 Railway 72 MGA54 521959 6450398 286445 -56 285 RC5
17THR011 Railway 126 MGA54 522302 6451169 276812 -56 120 RC5
17THR012 Railway 180 MGA54 522440 6451304 274931 -58 173 RC5
17THR013 Big Hill 102 MGA54 521750 6449942 28489 -60 1305 RC5
17THR014 Big Hill 104 MGA54 521628 6449796 277545 -53 130 RC5
17THR015 Big Hill 108 MGA54 521793 6449918 284847 -58 310 RC5
17THR016 Pyrite Hill 138 MGA54 518446 6449209 290391 -57 283 RC5
17THR017 Pyrite Hill 120 MGA54 518449 6449263 293147 -56 2815 RC5
17THR018 Pyrite Hill 78 MGA54 518027 6449806 289567 -60 222 RC5
17THR019 Pyrite Hill 72 MGA54 518105 6449754 287701 -55 222 RC5
17THR020 Pyrite Hill 66 MGA54 518166 6449695 288685 -60 222 RC5
17THR021 Pyrite Hill 78 MGA54 518183 6449717 286007 -60 222 RC5
17THR022 Pyrite Hill 156 MGA54 518510 6449306 28682 -55 281 RC5
17THR023 Pyrite Hill 150 MGA54 518506 6449377 289481 -57 2645 RC5
17THR024 Pyrite Hill 150 MGA54 518457 6449498 288137 -595 2285 RC5
17THR025 Pyrite Hill 114 MGA54 518311 6449609 287463 -60 222 RC5
17THR026 Pyrite Hill 114 MGA54 518268 6449681 284164 -60 222 RC5
17THR027 Pyrite Hill 72 MGA54 518243 6449646 287176 -60 222 RC5
17THR028 Railway 150 MGA54 522457 6451167 300659 -60 350 RC5
17THR029 Railway 162 MGA54 522482 6451084 295964 -60 175 RC5
17THR030 Railway 138 MGA54 522783 6451423 270814 -55 140 RC5
17THR031 Railway 120 MGA54 522945 6451566 27619 -55 145 RC5
17THR032 Railway 132 MGA54 522819 6451473 273712 -53 140 RC5
17THR033 Railway 120 MGA54 522501 6451315 26963 -60 175 RC5
17THR034 Railway 132 MGA54 522321 6451214 275947 -55 127 RC5
17THR035 Railway 156 MGA54 522259 6451120 275749 -552 130 RC5
17THR036 Railway 92 MGA54 522186 6450998 275339 -612 130 RC5
17THR037 Railway 126 MGA54 522148 6450941 274202 -55 126 RC5
17THR038 Railway 168 MGA54 521927 6450619 289555 -55 108 RC5
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 25
Historic down-hole information
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
67TH01 Pyrite Hill 3042 MGA94_54 518564805 644946003 280643 -55 2606 DDH1
70TH02 Pyrite Hill 1486 MGA94_54 51827242 644968054 28408 -61 2186 DDH1
70TH03 Pyrite Hill 1414 MGA94_54 51844985 644921188 28981 -62 2836 DDH1
70BH01 Big Hill 1027 MGA94_54 52085056 64493085 28456 -47 3186 DDH1
70BH02 Big Hill 1039 MGA94_54 52078612 64492644 2801 -50 3186 DDH1
80PYH13 Pyrite Hill 77 MGA94_54 5183582 64490377 29035 -50 2807 DDH1
80PYH14 Pyrite Hill 3003 MGA94_54 51866118 644928762 27796 -60 2807 DDH1
80PYH03 Pyrite Hill 35 MGA94_54 5182515 64495699 2994 -60 2207 PDDH2 2280BGH09 Big Hill 1005 MGA94_54 52065743 644929252 27280 -50 1447 DDH1
80PYH01 Pyrite Hill 2453 MGA94_54 5182462 64495657 3011 -60 2027 PDDH2 680PYH02 Pyrite Hill 513 MGA94_54 5182607 64495742 2976 -60 2207 PDDH2 335880PYH04 Pyrite Hill 55 MGA94_54 51836655 644923174 30834 -60 2957 PDDH2 38780PYH05 Pyrite Hill 936 MGA94_54 51822697 644967819 28518 -49 2227 PDDH2 1880PYH06 Pyrite Hill 855 MGA94_54 51816348 64497573 28373 -544 2227 PDDH2 1880PYH07 Pyrite Hill 945 MGA94_54 51808406 644981836 28516 -55 2227 PDDH2 1280PYH08 Pyrite Hill 110 MGA94_54 51800954 644988543 28614 -60 2227 PDDH2 880PYH09 Pyrite Hill 1005 MGA94_54 5179174 644993176 28655 -485 2227 PDDH2 880PYH10 Pyrite Hill 1453 MGA94_54 51839296 644956596 28553 -50 2227 PDDH2 25580PYH11 Pyrite Hill 1031 MGA94_54 51844096 644932952 29725 -50 2807 PDDH2 1880PYH12 Pyrite Hill 1095 MGA94_54 51840728 644913731 29263 -50 2807 PDDH2 4280BGH05 Big Hill 5486 MGA94_54 52095535 644953441 28893 -60 1637 RCDDH3 45598TC01 Railway 100 MGA94_54 52275006 645133973 26727 -60 1589 RC5
98TC02 Railway 100 MGA94_54 52239241 645138683 26678 -60 1409 RC5
98TC03 Big Hill 84 MGA94_54 52081645 644936939 31305 -60 1359 RC5
98TC04 Big Hill 13825 MGA94_54 52086005 644945085 30409 -60 1409 RC5
98TC05 Big Hill 70 MGA94_54 520728 644932807 28863 -50 1229 RC5
98TC06 Big Hill 108 MGA94_54 520715 6449343 28513 -60 1259 RC5
98TC07 Big Hill 120 MGA94_54 52078597 644938821 29922 -50 1339 RC5
98TC08 Big Hill 90 MGA94_54 52080195 644947781 29101 -60 1509 RC5
98TC09 Big Hill 114 MGA94_54 52082221 644946079 29625 -60 1339 RC5
98TC10 Big Hill 134 MGA94_54 521018 6449576 2815 -50 1729 RC5
98TC11 Railway 35 MGA94_54 5224112 645137396 26701 -60 1329 RC5
80BGH06 Big Hill 6804 MGA94_54 520880 6449472 299 -60 1707 RCDDH3 5880BGH08 Big Hill 797 MGA94_54 52076879 644939093 29629 -60 1267 RCDDH3 69980BGH07 Big Hill 23 MGA94_54 52113656 6449599 27411 -60 1777 RC5
93MGM01 Pyrite Hill 70 MGA94_54 51818544 644971377 28628 -60 2228 RDDH4 2493MGM02 Pyrite Hill 180 MGA94_54 51851545 644945467 28479 -60 2588 RDDH4 4811PHR01 Pyrite Hill 150 MGA94_54 51843547 644907276 28534 -60 27906 RC5
11PHR02 Pyrite Hill 198 MGA94_54 51849992 644915931 28379 -60 27906 RC5
11PHR03 Pyrite Hill 240 MGA94_54 5185603 644918961 28026 -60 27906 RC5
11PHR04 Pyrite Hill 186 MGA94_54 51852863 6449257 28403 -60 27906 RC5
11PHR05 Pyrite Hill 234 MGA94_54 51858425 644939762 28022 -60 25906 RC5
11PHR06 Pyrite Hill 180 MGA94_54 5184909 644952259 28402 -60 23406 RC5
11PHR07 Pyrite Hill 174 MGA94_54 51841347 64495929 28286 -60 21906 RC5
11PHR08 Pyrite Hill 180 MGA94_54 51834274 644965585 28288 -60 21806 RC5
11PSR01 Pyrite Hill 59 MGA94_54 51874273 6448864 26838 -60 25806 RC5
11PSR02 Pyrite Hill 132 MGA94_54 51871938 644896001 27041 -60 25506 RC5
11PSR03 Pyrite Hill 78 MGA94_54 51868699 644905535 27279 -60 25506 RC5
12BER01 Railway 157 MGA94_54 52166731 644989323 27769 -60 141 RC5
12BER02 Railway 132 MGA94_54 52121267 644969067 27353 -60 162 RC5
12BER03 Railway 151 MGA94_54 52187901 645043547 28859 -60 102 RC5
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 26
Historic down-hole information (continued)
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
12BER04 Railway 148 MGA94_54 52235392 645126835 27435 -60 131 RC5
12BER05 Railway 145 MGA94_54 52243947 645116784 29973 -60 124 RC5
12BER06 Railway 169 MGA94_54 52248137 645109135 29595 -60 118 RC5
12BER07 Railway 115 MGA94_54 52232372 645074875 27791 -60 144 RC5
12BER08 Railway 193 MGA94_54 52222079 64508118 27316 -60 129 RC5
12BER09 Railway 13975 MGA94_54 52210125 645088144 27591 -60 129 RC5
12BER10 Railway 151 MGA94_54 52195345 645071618 28449 -60 129 RC5
12BER11 Railway 193 MGA94_54 52273722 645137661 26583 -60 153 RC5
12BER12 Railway 111 MGA94_54 52290973 645151676 27736 -60 153 RC5
12BER13 Railway 205 MGA94_54 52288381 645155754 27103 -60 156 RC5
12BER14 Railway 151 MGA94_54 52312483 645163707 28836 -60 152 RC5
12BER15 Railway 109 MGA94_54 5233113 64518417 28395 -60 154 RC5
12BER16 Railway 115 MGA94_54 52299408 645159199 27595 -60 156 RC5
12BER17 Railway 1155 MGA94_54 5225165 645131494 2691 -60 153 RC5
12BER18 Railway 157 MGA94_54 52233275 645128131 27229 -60 129 RC5
12BER19 Railway 97 MGA94_54 52224055 645106715 27616 -60 135 RC5
12BER20 Railway 120 MGA94_54 52129169 644973363 27695 -60 165 RC5
13BED01 Railway 3492 MGA94_54 52248021 645109243 29601 -60 3007 DDH1
16DM01 Pyrite Hill 1616 MGA94_54 51841138 644959389 28269 -60 2155 DDH1
16DM02 Pyrite Hill 1834 MGA94_54 51852662 644926158 28418 -60 2850 DDH1
16DM03 Big Hill 1265 MGA94_54 5210371 644956749 28301 -60 1585 DDH1
16DM04 Big Hill 1054 MGA94_54 52081474 64494644 29618 -55 1285 DDH1
16DM05 Railway 2465 MGA94_54 5221037 645088187 27662 -60 1285 DDH1
16DM06 Railway 1604 MGA94_54 52291157 645151913 2785 -60 1525 DDH1
16DM07 Railway 2425 MGA94_54 52299526 645159826 27636 -60 1561 DDH1
16DM08 Railway 2585 MGA94_54 52235145 645127307 27385 -60 1309 DDH1
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 27
Down hole length and interception depth ndash 2017 holes
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THD01 34 123 89 982 94 87
including 35 41 6 1143 119 106
and 50 55 5 1311 131 115
and 81 122 41 1366 118 11
17THD02 47 134 87 911 88 92
including 48 77 29 1238 111 114
and 116 134 18 1199 110 111
17THD03 40 635 235 894 116 108
including 49 63 14 1076 143 124
17THD04 20 29 9 1033 86 872 96 24 703 88 81
17THD05 44 60 16 993 98 85
including 44 56 12 1094 109 94
71 76 5 840 64 6317THD06 39 85 46 1136 114 101
including 40 70 30 1227 122 104
and 76 85 9 1148 107 100
17THD07 15 128 113 879 81 88
including 47 55 8 1048 117 103
and 61 102 41 1452 125 123
142 152 10 704 6 102199 204 5 706 49 65
17THR001 27 63 36 1075 106 104
including 37 63 26 1280 119 115
75 84 9 755 91 139
17THR002 37 43 6 711 69 82
91 136 45 983 98 105
including 102 136 34 1190 117 118
17THR003 4 59 55 937 93 94
including 10 46 36 1212 116 110
17THR004 49 146 97 888 102 102
including 51 113 62 1051 114 113
17THR005 52 72 20 1053 128 126
including 53 63 10 1145 125 130
17THR006 14 74 60 754 86 87
including 17 44 27 1176 125 121
17THR007 5 22 17 837 0 125
including 12 19 7 1049 0 105
128 154 26 1034 114 115
including 128 146 18 1321 144 143
17THR008 37 78 41 1319 122 11217THR009 29 65 36 957 94 92including 34 60 26 1150 111 102
100 105 5 833 129 12717THR010 51 57 6 729 49 5317THR011 30 83 53 1116 12 109
including 31 62 31 1423 155 135
17THR012 50 117 67 748 75 86
including 59 67 8 1084 103 126
and 75 102 27 1120 110 113
172 177 5 725 64 64
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 28
Down hole length and interception depth ndash 2017 holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THR013 19 73 54 888 54 5
including 19 29 10 2576 88 77
17THR014 12 45 33 749 81 74
including 25 33 8 1148 113 94
17THR015 40 48 8 995 89 8117THR016 66 115 49 1096 129 134
including 66 81 15 1184 142 139
and 89 114 25 1183 134 141
17THR017 54 112 58 1383 132 128
including 56 85 29 2042 183 158
17THR018 47 63 16 1124 151 14117THR019 42 59 17 1032 107 114
17THR020 29 49 20 1067 116 115
including 29 36 7 1352 135 126
17THR021 44 64 20 1204 131 12717THR022 101 138 37 1152 107 1217THR023 91 137 46 1271 139 133
including 91 97 6 1953 187 166
and 114 125 11 2707 311 265
17THR027 29 54 25 1176 126 118
including 30 47 17 1382 141 125
Down hole length and interception depth ndash historic holes
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
11PHR02 74 114 40 875 108 116
11PHR03 150 162 12 750 83 96
11PHR03 163 190 27 732 106 119
11PHR03 206 227 21 988 117 13
11PHR04 124 172 48 1049 128 129
11PHR05 197 219 22 1138 107 133
11PHR06 104 135 31 854 83 115
11PHR06 155 171 16 1315 12 122
11PHR07 96 147 51 941 95 99
11PHR08 103 115 12 1417 139 148
11PHR08 126 144 18 1048 126 142
12BER01 115 139 24 768 72 74
12BER02 18 25 7 1062 103 93
12BER02 113 123 10 907 85 86
12BER04 41 90 49 1191 114 127
12BER04 121 126 5 1241 9 112
12BER05 33 39 6 1109 79 92
12BER05 65 76 11 721 63 66
12BER06 131 169 38 844 83 128
12BER07 38 43 5 704 10 101
12BER09 33 92 59 841 9 116
12BER11 31 62 31 738 84 126
12BER11 92 159 67 1061 10 131
12BER11 173 193 20 737 67 83
12BER12 27 81 54 1430 181 189
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 29
Down hole length and interception depth ndash historic holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
12BER13 21 42 21 761 74 91
12BER13 65 75 10 1882 204 216
12BER14 28 55 27 1013 125 129
12BER16 25 100 75 1008 106 107
12BER17 92 99 7 739 6 63
12BER18 117 157 40 1017 112 114
12BER19 34 56 22 1151 104 108
12BER19 68 75 7 780 61 6
12BER20 21 46 25 731 69 75
13BED01 266 2915 255 872 85 78
16DM01 96 147 51 851 91 86
16DM02 127 172 45 1118 138 136
16DM03 104 111 7 838 103 9
16DM04 91 99 8 887 91 84
16DM05 30 103 73 793 82 9
16DM05 199 211 12 830 251 221
16DM06 28 84 56 1280 162 167
16DM06 138 146 8 722 78 112
16DM07 35 60 25 1232 111 111
16DM07 71 104 33 1224 133 134
16DM08 76 100 24 1026 11 12
16DM08 165 177 12 921 122 126
17THD01 34 123 89 982 94 87
17THD02 47 134 87 911 88 92
17THD03 40 635 235 894 116 108
17THD04 20 29 9 1033 86 8
17THD04 72 96 24 703 88 81
17THD05 44 60 16 993 98 85
17THD05 71 76 5 840 64 63
17THD06 39 85 46 1136 114 101
17THD07 15 128 113 879 81 88
17THD07 142 152 10 704 6 102
17THD07 199 204 5 706 49 65
17THR001 27 63 36 1075 106 104
17THR001 75 84 9 755 91 139
17THR002 37 43 6 711 69 82
17THR002 91 136 45 983 98 105
17THR003 4 59 55 937 93 94
17THR004 49 146 97 888 102 102
17THR005 52 72 20 1053 128 126
17THR006 14 74 60 754 86 87
17THR007 5 22 17 837 0 125
17THR007 128 154 26 1034 114 115
17THR008 37 78 41 1319 122 112
17THR009 29 65 36 957 94 92
17THR009 100 105 5 833 129 127
17THR010 51 57 6 729 49 53
17THR011 30 83 53 1116 12 109
17THR012 50 117 67 748 75 86
17THR012 172 177 5 725 64 64
17THR013 19 73 54 888 54 5
17THR014 12 45 33 749 81 74
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 30
Down hole length and interception depth ndash historic holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THR015 40 48 8 995 89 81
17THR016 66 115 49 1096 129 134
17THR017 54 112 58 1383 132 128
17THR018 47 63 16 1124 151 141
17THR019 42 59 17 1032 32 114
17THR020 29 49 20 1067 116 115
17THR021 44 64 20 1204 131 127
17THR022 101 138 37 1152 107 12
17THR023 91 137 46 1271 139 133
17THR027 29 54 25 1176 126 118
67TH01 12344 20001 7657 979 0 0
70BH01 3962 5334 1372 3323 31 0
70BH01 6431 8443 2012 1203 95 0
70BH02 7406 8686 128 704 75 0
70TH02 78 841 61 1666 175 154
70TH02 871 1021 15 1661 8 72
70TH03 777 1295 518 1016 129 132
80BGH05 39 49 10 752 0 0
80BGH06 18 6804 5004 969 0 0
80BGH08 44 7815 3415 939 0 0
80PYH01 75 17 95 725 0 0
80PYH02 341 4825 1415 1121 0 0
80PYH03 23 35 12 711 0 0
80PYH04 3975 55 1525 735 0 0
80PYH05 367 65 283 1160 118 0
80PYH06 54 62 8 905 0 0
80PYH07 67 794 124 1113 125 0
80PYH10 4845 1374 8895 831 86 0
80PYH11 346 465 119 916 8 0
80PYH11 572 9105 3385 1239 106 0
80PYH12 302 365 63 791 102 0
80PYH12 8515 908 565 857 146 0
80PYH14 2518 2734 216 1252 131 0
93MGM02 85 160 75 941 85 0
98TC01 20 47 27 744 91 126
98TC01 48 71 23 917 119 164
98TC03 34 45 11 1480 55 6
98TC03 68 79 11 1095 43 42
98TC04 84 94 10 966 39 4
98TC04 107 133 26 771 77 82
98TC05 24 62 38 754 64 7
98TC06 66 72 6 727 104 111
98TC06 76 101 25 767 101 106
98TC07 35 46 11 1546 165 171
98TC07 61 82 21 728 91 94
98TC09 32 39 7 716 49 174
98TC09 82 107 25 732 6 67
98TC10 101 125 24 732 79 8
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 31
Criteria JORC Code Explanation Commentary
Data aggregation methods
a In reporting Exploration Results weighting averaging techniques maximum andor minimum grade truncations (eg cutting of high grades) and cut-off grades are usually Material and should be stated
a Where aggregate intercepts incorporate short lengths of high grade results and longer lengths of low grade results the procedure used for such aggregation should be stated and some typical examples of such aggregations should be shown in detail
a The assumptions used for any reporting of metal equivalent values should be clearly stated
Drilling a Drill hole intercept grades are typically reported as down-hole
length-weighted averages with any non-recovered sample within the reported intervals treated as no grade The cut-off used for selecting significant intersections is selected to reflect the overall tenor of mineralisation in most cases 500ppm cobalt
a No top cuts have been applied when calculating average grades for reported significant intersections
a No metal equivalent values are reported
Relationship between mineralis- ation widths and intercept lengths
a These relationships are particularly important in the reporting of Exploration Results
a If the geometry of the mineralisation with respect to the drillhole angle is known its nature should be reported
a If it is not known and only the down hole lengths are reported there should be a clear statement to this effect (eg lsquodown hole length true width not knownrsquo)
a Drill holes at the Thackaringa project are typically angled at 50deg or 60deg and drilled perpendicular to the mineralised trend with drilling orientations adjusted along strike to accommodate folded geological sequences
a Mineralisation at the Big Hill and Railway prospects is steeply dipping and consequently mineralised intersections will be greater than true width At Pyrite Hill mineralisation is gently dipping and mineralised intersections will be close to true width
a There is insufficient geological knowledge to accurately estimate true widths and as such all drill intersections are reported as down hole lengths
Diagrams a Appropriate maps and sections (with scales) and tabulations of intercepts should be included for any significant discovery being reported These should include but not be limited to a plan view of drill hole collar locations and appropriate sectional views
a Appropriate maps and sections are presented in the accompa-nying ASX release
Balanced reporting
a Where comprehensive reporting of all exploration results is not practicable representative reporting of both low and high grades andor widths should be practiced to avoid misleading reporting of Exploration Results
a Only mineralised drill hole intersections regarded as highly anomalous and of economic interest are reported The proportion of each hole represented by the reported intervals can be ascertained from the sum of the reported intervals divided by the total drill hole depth
a All assay results for drill holes included in the various Mineral Resource estimates have been considered and comprise results not necessarily regarded as anomalous
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 32
Criteria JORC Code Explanation Commentary
Other substantive exploration data
a Other exploration data if meaningful and material should be reported including (but not limited to) geological obser-vations geophysical survey results geochemical survey results bulk samples ndash size and method of treatment metallurgical test results bulk density groun d- water geotechnical and rock characteristics potential deleterious or contaminating substances
a No further exploration data is deemed material to the results presented in this release
Further work a The nature and scale of planned further work (eg tests for lateral extensions or depth extensions or large-scale step-out drilling)
a Diagrams clearly highlighting the areas of possible extensions including the main geological interpretations and future drilling areas provided this information is not commercially sensitive
a The nature and scale of planned further work will be determined following the completion of revised Mineral Resource estimation for the Thackaringa deposits scheduled for May 2017
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 17
Criteria JORC Code Explanation Commentary
Sub-sampling techniques and sample preparation
a If core whether cut or sawn and whether quarter half or all core taken
a If non-core whether riffled tube sampled rotary split etc and whether sampled wet or dry
a For all sample types the nature quality and appropriateness of the sample preparation technique
a Quality control procedures adopted for all sub-sampling stages to maximise representivity of samples
a Measures taken to ensure that the sampling is representative of the in situ material collected including for instance results for field duplicatesecond-half sampling
a Whether sample sizes are appropriate to the grain size of the material being sampled
Diamond Drilling (DD)Pre-1990a Core samples were hand-split or sawn with re-logging of available
historical core (see Logging) indicating a 7030 (retainedassayed) split was typical The variation of sample ratios noted are consid-ered consistent with the sub-sampling technique (hand-splitting)
a No second half samples were submitted for analysis a It is considered water used for core cutting is unprocessed and
unlikely to have introduced sample contamination a Procedures relating to the definition of the line of cutting or splitting
are not available It is expected that lsquostandard industry practicersquo for the period was applied to maximize sample representivity
Post-1990 a NQ drilling core was sawn with half core submitted for assay a HQ drilling core was sawn with quarter core submitted for assay a No second half samples were submitted for analysis a It is considered water used for core cutting is unprocessed and
unlikely to have introduced sample contamination a Procedures relating to the definition of the line of cutting or splitting
are not available It is expected that lsquostandard industry practicersquo for the period was applied to maximise sample representivity
2016 Metallurgical Drilling a All HQ drill core was sawn into halves with each half then re-sawn
to provide 4 lengths of quarter core for each interval a One half core was submitted for assay a One quarter core was submitted for metallurgical test work a One quarter core was retained for archive a It is considered that the water used for core cutting is most
unlikely to have introduced sample contamination a Sample sawing and processing for test work were undertaken
according to lsquostandard industry practicersquo to maximise sample representivity
2017 Diamond Drilling a All HQ drill core was sawn into halves with each half then re-sawn to
provide 4 lengths of quarter core for each interval
a One quarter ndash one half core was submitted for assay
a One quarter ndash three quarter core was retained for archive
a It is considered that the water used for core cutting is most unlikely to have introduced sample contamination
a Sample sawing and processing for test work were undertaken according to lsquostandard industry practicersquo to maximise sample representivity
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 18
Criteria JORC Code Explanation Commentary
Sub-sampling techniques and sample preparation (continued)
Historical Reverse Circulation Drilling a Sub-sampling of reverse circulationpercussion chips was
achieved using a cyclone with cone or riffle splitter a During drilling operations the sample cyclone and splitter were
regularly cleaned to prevent down hole sample contamination a Dry sampling was achieved with the use of adequate air using a
compressor and booster where groundwater was encountered a During reverse circulation drilling completed by Broken Hill
Prospecting duplicate samples were collected at the time of drilling These were obtained by spearing the bulk material held in the PVC sacks using a spear made of 40mm diameter PVC pipe three samples were speared through the full depth of the bulk material and these were combined to form one sample
a The Thackaringa drilling database includes a total of 139 field duplicates collected during reverse circulation drilling This reflects a ratio of approximately one field duplicate in every 32 samples (31) for drill holes where duplicates were collected (31 drill holes for 4469 metres) and an overall ratio of one field duplicate in every 42 samples (24) for all reverse circulation drill holes (43 drill holes for 58015 metres)
a Statistical analysis of field duplicates collected during drilling completed by Broken Hill Prospecting (119 duplicates representing 86 of all field duplicates) considered 18 elements of which only chromium lanthanum and titanium show some bias in the duplicate samples For cobalt the confidence limits were evenly placed either side of zero and the duplicates are deemed to be representative of the original samples
2017 Reverse Circulation Drilling a Sub-sampling of reverse circulationpercussion chips was achieved
using a riffle splitter
a During drilling operations the splitter was regularly cleaned to prevent down hole sample contamination
a Dry sampling was achieved with the use of adequate air using a compressor and booster where groundwater was encountered
a During reverse circulation drilling completed by Broken Hill Prospecting duplicate samples were collected at the time of drilling These were obtained by riffle splitting the remnant bulk sample following collection of the primary split
a Field duplicate samples were collected regularly during drilling (for every 18th sample on average)
a Assay results received to date include analysis of 120 field duplicate pairs from 24 RC drill holes
a A measure of the average precision of the sampling sample preparation and assaying methods given by the mean per cent difference (MPD) assay values of the duplicate pairs is summarised below Overall the sampling and assay precision for Co Fe and S at economically significant grades is regarded as reasonable
RC Field Duplicate Pairs
Co Cut-Off Count Co MPD S MPD Fe MPD
All 120 13 16 9
200ppm 52 13 11 10
500ppm 34 12 9 9
1000ppm 20 8 7 7
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 19
Criteria JORC Code Explanation Commentary
Quality of assay data and laboratory tests
a The nature quality and appropriateness of the assaying and laboratory procedures used and whether the technique is considered partial or total
a For geophysical tools spectrometers handheld XRF instruments etc the parameters used in determining the analysis including instrument make and model reading times calibrations factors applied and their derivation etc
a Nature of quality control proce-dures adopted (eg standards blanks duplicates external laboratory checks) and whether acceptable levels of accuracy (ie lack of bias) and precision have been established
a The nature and quality of all assaying and laboratory procedures employed for samples obtained through drilling (diamond and reverse circulation) are considered lsquoindustry standardrsquo for the respective periods
a The assay techniques employed for drilling (diamond and reverse circulation) include mixed acid digestion with ICP-OES and AAS finishes These methods are considered appropriate for the targeted mineralisation and regarded as a lsquonear totalrsquo digestion technique with resistive phases not expected to affect cobalt analyses
a All samples have been processed at independent commercial laboratories including AMDEL Australian Laboratory Services (ALS) Analabs and Genalysis
a All samples from drilling completed by Broken Hill Prospecting during 2011-2012 were assayed at ALS in Orange New South Wales All samples from drilling completed by Broken Hill Prospecting during 2016-2017 were assayed at ALS Adelaide South Australia ALS is a NATA Accredited Laboratory and qualifies for JASANZ ISO90012008 quality systems ALS maintains robust internal QAQC procedures (including analysis of standards repeats and blanks)
a To monitor the accuracy of assay results from the 2017 Thackaringa drilling CRM standards were included in the assay sample stream every 24 samples (on average) for RC chips and every 30 samples for diamond core The CRM samples were purchased from Ore Research amp Exploration Pty Ltd and the results are summarised below
Cobalt Sulphur Iron
OREAS Standard Count plusmn1SD plusmn2SD plusmn3SD plusmn3SD+ plusmn1SD plusmn2SD plusmn3SD plusmn3SD+ plusmn1SD plusmn2SD plusmn3SD plusmn3SD+
160 Low S Blank (28ppm Co) 12 10 ndash ndash 2 7 ndash ndash 5 6 2 2 2
162 Medium Grade (631ppm Co) 53 37 12 3 ndash 32 18 3 ndash 14 12 13 14
163 Low Grade (230ppm Co) 40 30 8 2 ndash 7 25 7 1 2 3 2 33
165 High Grade (2445ppm Co) 13 11 2 ndash ndash 7 5 1 ndash 1 5 2 5
166 High Grade (1970ppm Co) 35 26 8 ndash 1 27 6 ndash 2 9 5 5 16
153 114 30 5 3 80 54 11 8 32 27 24 70
75 20 3 2 52 35 7 5 21 18 16 46
Cobalt CRM Standards
Internal COB assay QAQC protocols cobalt performed well with 95 standard analyses falling within two standard deviations of the certified value and 75 within one SD No systematic out-of-specification trends were identified and there was no discernible tendency for a particular Co standard to preferentially assay either higher or lower than the certified Co concentration
Cobalt Blanks
A number of blanks were also submitted with the RC chip and diamond core samples mdash the OREAS160 CRM is essentially a low-sulphide blank with respect to cobalt (28ppm) and the results of assay of this standard are summarised in Table 1 In addition five quartz sand blanks were submitted bracketing very pyrite-rich intervals in diamond drill holes 17THD06 and 17THD07 Overall the quartz sand blanks returned a maximum of 69ppm Co 004 S and 065 Fe which are regarded as similar to background values and any contamination during sample preparation at the assay laboratory is likely to be immaterial to the final results
Based on the assay of standards and blanks with 95 of the Co results falling within two standard deviations of the certified value it is concluded that the assay results for Co are likely to be representative for the material submitted with no additional source of inaccuracy or bias identified
Sulphur CRM Standards
sulphur was reasonably well-performed with 87 of the total 153 standard analyses falling within two standard deviations of the certified value and 95 within 3SD
Iron CRM Standards
Iron analysis of standards showed poor accuracy with a tendency to assay low mdash 46 of the assays fall outside of 3 SD typically but not exclusively lower than the certified value
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 20
Criteria JORC Code Explanation Commentary
Verification of sampling and assaying
a The verification of significant intersections by either inde-pendent or alternative company personnel
a The use of twinned holes
a Documentation of primary data data entry procedures data verification data storage (physical and electronic) protocols
a Discuss any adjustment to assay data
a Historical drilling intersections were internally verified by personnel employed by previous explorers including CRAE Pty Limited Central Austin Pty Limited and Hunter Resources Broken Hill Prospecting has completed a systematic review of the related data
a The Thackaringa drilling database exists in electronic form as a Microsoft Access database Information related to individual drill holes is stored in digital files as extracted from historical reports (typically including location plan section logs photos surveys assays and petrology)
a Historical drilling data available in electronic form has been re-formatted and imported into the drilling database
a Quantitative historical drilling data including assays have been captured electronically during systematic data compilation and validation completed by Broken Hill Prospecting
a Samples returning assays below detection limits are assigned half detection limit values in the database
a All significant intersections are verified by the Companyrsquos Exploration Manager and independent geological consultant
Location of data points
a Accuracy and quality of surveys used to locate drill holes (collar and down-hole surveys) trenches mine workings and other locations used in Mineral Resource estimation
a Specification of the grid system used
a Quality and adequacy of topographic control
a Historical drill collars have been relocated and surveyed using a differential GPS (DGPS) In the instances where no collar could be located the position has been derived from georeferenced historical plans
a During systematic data validation completed in 2016 three drill holes at Big Hill were found to be incorrectly located One collar was located and surveyed by GPS and two were digitised from georeferenced historical plans (reported to the nearest metre) as the collars had been destroyed These corrections were captured in the Big Hill Mineral Resource estimate
a Down hole surveys using digital cameras were completed on all post 2000 drilling Down hole surveys for some earlier drilling were estimated from hole trace and section data where raw survey data was not reported
a All 2017 Thackaringa drill hole collars were located and surveyed with DGPS by an independent surveyor with reported accuracy of plusmn005m in horizontal and vertical measurement
a Downhole surveys using digital cameras were completed on all 2017 drill-holes
a All data is recorded in the GDA94 datum UTM Zone 54 (MGA54)
a 3D validation of drilling data has been completed by independent geological consultants to support detailed geological modelling in Microminetrade software
a The quality of topographic control is deemed adequate in consideration of the results presented in this release
Data spacing and distribution
a Data spacing for reporting of Exploration Results
a Whether the data spacing and distribution is sufficient to estab-lish the degree of geological and grade continuity appropriate for the Mineral Resource and Ore Reserve estimation procedure(s) and classifications applied
a Whether sample compositing has been applied
a The data density of existing drill holes at Thackaringa has been materially increased by the 2017 drilling program which was undertaken primarily to undertake infill drilling
a Detailed geological mapping supported by drill-hole data of sufficient spacing and distribution to establish a 3D geological model
a The level of geological and grade continuity is appropriate for the Mineral Resource estimation methodologies used and the classifications applied (being wholly Inferred Mineral Resources) Note that a recalculation of the Mineral Resource using 2017 drilling and assay data will commence in mid-2017
a No sample compositing has been applied to reported intersections
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 21
Criteria JORC Code Explanation Commentary
Orientation of data in relation to geological structure
a Whether the orientation of sampling achieves unbiased sampling of possible structures and the extent to which this is known considering the deposit type
a If the relationship between the drilling orientation and the orientation of key mineralised structures is considered to have introduced a sampling bias this should be assessed and reported if material
a The 2017 drill holes at the Thackaringa project were typically angled at -500 or -600 to the horizontal and drilled perpendicular to the mineralised trend with drilling orientations adjusted along strike to accommodate folded geological sequences
a Mineralisation at the Big Hill and Railway prospects is steeply dipping and consequently mineralised intersections will be greater than true width At Pyrite Hill mineralisation is gently dipping and mineralised intersections will be close to true width
a The drilling orientation is not considered to have introduced a sampling bias on assessment of the current geological interpretation
Sample security
a The measures taken to ensure sample security
a Sample security procedures are considered to be lsquoindustry standardrsquo for the respective periods
a Following recent drilling completed by BPL samples were trucked by an independent courier directly from Broken Hill to ALS Adelaide
a BPL consider that risks associated with sample security are limited given the nature of the targeted mineralisation
Audits or reviews
a The results of any audits or reviews of sampling techniques and data
a In late 2016 an independent validation of the Thackaringa drilling database was completed
a The data validation process consisted of systematic review of drilling data (collars assays and surveys) for identification of transcription errors
a Following review historical drill hole locations were also validated against georeferenced historical maps to confirm their location
a Three (3) drill holes at Big Hill were found to be incorrectly located One collar was located and surveyed by GPS and two were digitised from georeferenced historical plans (reported to the nearest metre) as the collars had been destroyed These corrections were captured in the Big Hill Mineral Resource estimate
a Total depths for all holes were checked against original reports
a Final 3D validation of drilling data has been completed by independent geological consultants to support detailed geological modelling in Microminetrade software
a Audits and reviews of QAQC results and procedures are further described in preceding sections of this table including Quality of assay data and laboratory tests Sub-sampling techniques and sample preparation and Logging
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 22
Section 2 Reporting of Exploration Results(Criteria listed in the preceding section also apply to this section)
Criteria JORC Code Explanation Commentary
Mineral tenement and land tenure status
a Type reference namenumber location and ownership including agreements or material issues with third parties such as joint ventures partnerships overriding royalties native title interests historical sites wilderness or national park and environmental settings
a The security of the tenure held at the time of reporting along with any known impediments to obtaining a licence to operate in the area
a The Thackaringa Cobalt project is located approximately 25 kilometres west-southwest of Broken Hill and comprises four tenements with a total area of 63 km2
Tenement
Registered amp Beneficial Holder Minerals Grant Date Expiry Date
Annual Expenditure
Commit-ment
EL6622 Broken Hill Prospecting Limited (BPL)
Group 1 30082006 29082017 $47000
EL 8143 BPL Group 1 26072013 26072017 $14000
ML86 BPL Cobalt iron nickel platinum sulphur
05111975 04112017 $75000
ML87 BPL Cobalt iron nickel platinum sulphur
05111975 04112017 $75000
a The project tenure is subject to a Farm-In agreement between Cobalt Blue Holdings Limited (COB) and Broken Hill Prospecting Limited (BPL) The nature of this agreement is detailed in the COB Replacement Prospectus (as released 4 January 2017)
a The nearest residence (Thackaringa Station) is located approxi-mately three kilometres west of EL6622
a EL6622 is intersected by the Transcontinental Railway the Barrier Highway is located the north of the licence boundaries
a The majority of the project tenure is covered by Western Lands Lease which is considered to extinguish native title interest However Native Title Determination NC9732 (Barkandji Traditional Owners 8) is current over the area and may be relevant to Crown Land parcels (eg public roads) within the project area
a The project tenure is more than 90 kilometres from the nearest National Park and or Wilderness Area (Kinchega National Park) and approximately 20 kilometres south of the nearest Water Supply Reserve (Umberumberka Reservoir Water Supply Reserve)
a The Company is not aware of any impediments to obtaining a licence to operate in the area
Exploration done by other parties
a Acknowledgment and appraisal of exploration by other parties
a A detailed and complete record of all exploration activities undertaken prior to the BPL 2016 drilling program is appended to the JORC Table 1 which forms part of the Cobalt Blue Prospectus Document available on the COB website
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 23
Criteria JORC Code Explanation Commentary
Geology a Deposit type geological setting and style of mineralisation
Regional Geological Setting a The Thackaringa project is located in a deformed and metamor-
phosed Proterozoic supracrustal succession named the Willyama Supergroup which crops out as several inliers in western New South Wales including the Broken Hill Block (Willis et al 1982)
a Exploration by BPL Limited has been focused on the discovery of cobaltiferous pyrite deposits and Broken Hill type base-metal mineralisation both of which are known from historical exploration in the district
a The project area covers portions of the Broken Hill and Thackaringa group successions which host the majority of mineralisation in the region including the Broken Hill base-metal deposit The Sundown Group suite is also present The extensive sequence of quartz-albite-plagioclase rock that hosts the cobaltiferous pyrite mineralisation is interpreted as belonging to the Himalaya Formation which is stratigraphically at the top of the Thackaringa Group
Local Geological Setting a The oldest rocks in the region belong to the Curnamona Craton
which outcrops on the Broken Hill and Euriowie blocks a The overlying Proterozoic rocks have been broadly subdivided
into three major groupings of which the oldest groups are the highly deformed metasediments and igneous derived rocks of the Thackaringa and Broken Hill groups They comprise a major part of the Willyama Supergroup and host the giant Broken Hill massive Pb-Zn-Ag sulphide ore body EL6622 is within the Broken Hill block of the Curnamona Craton
Mineralisation Style a The Thackaringa Mineral deposits (Pyrite Hill Big Hill and Railway)
are characterised by large tonnage cobaltiferous-pyrite minerali-sation hosted within siliceous albitic gneisses and schists of the Himalaya Formation
a Cobalt mineralisation exists within stratabound pyritic horizons where cobalt is present within the pyrite lattice Mineralogical studies have indicated the majority of cobalt (~85) is found in solid solution with primary pyrite (Henley 1998)
a A strong correlation between pyrite content and cobalt grade is observed
a The regional geological setting indicates additional mineralisation targets including
a Stratiform Broken Hill Type (BHT) Copper-Lead-Zinc-Silver deposits
a Copper-rich BHT deposits a Stratiform to stratabound Copper-Cobalt-Gold deposits a Epigenetic Gold and Base metal deposits
Drill hole Information
a A summary of all information mat- erial to the understanding of the exploration results including a tab- ulation of the following information for all Material drill holes
a easting and northing of the drill hole collar
a elevation or RL (Reduced Level ndash elevation above sea level in metres) of the drill hole collar
a dip and azimuth of the hole
a down hole length and interception depth
a See drill holle summaries below
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 24
Drill hole summaries
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
17THD01 Pyrite Hill 1242 MGA54 518382 6449551 28906 -40 222 DDH1
17THD02 Pyrite Hill 1497 MGA54 518475 6449445 29054 -40 258 DDH1
17THD03 Pyrite Hill 785 MGA54 518370 6449190 30328 -40 2851 DDH1
17THD04 Big Hill 1198 MGA54 521078 6449589 27841 -45 1551 DDH1
17THD05 Big Hill 995 MGA54 521669 6449889 2785 -40 131 DDH1
17THD06 Railway 1655 MGA54 521970 6450705 2872 -45 128 DDH1
17THD07 Railway 2746 MGA54 522569 6451282 27067 -45 1565 DDH1
17THD08 Railway 1325 MGA54 522784 6451280 268881 -45 326 DDH1
17THD09 Railway 1205 MGA54 522905 6451511 278471 -40 1525 DDH1
17THD10 Railway 842 MGA54 522992 6451569 279779 -45 130 DDH1
17THD11 Railway 1115 MGA54 523109 6451682 280847 -40 1605 DDH1
17THD12 Railway 1265 MGA54 522796 6451419 272936 -40 14075 DDH1
17THD13 Railway 1055 MGA54 522836 6451456 276747 -40 1385 DDH1
17THD14 Pyrite Hill 99 MGA54 518375 6449089 29425 -60 285 DDH1
17THR001 Railway 156 MGA54 522615 6451277 267561 -60 120 RC5
17THR002 Railway 160 MGA54 522573 6451299 268511 -60 120 RC5
17THR003 Railway 96 MGA54 522124 6450868 27739 -60 130 RC5
17THR004 Railway 150 MGA54 522387 6451319 271453 -60 120 RC5
17THR005 Railway 72 MGA54 522024 6450783 282154 -60 120 RC5
17THR006 Railway 114 MGA54 522049 6450780 28401 -58 125 RC5
17THR007 Railway 180 MGA54 521965 6450699 286585 -59 125 RC5
17THR008 Railway 132 MGA54 521917 6450562 291682 -56 105 RC5
17THR009 Railway 120 MGA54 521906 6450496 292751 -58 105 RC5
17THR010 Railway 72 MGA54 521959 6450398 286445 -56 285 RC5
17THR011 Railway 126 MGA54 522302 6451169 276812 -56 120 RC5
17THR012 Railway 180 MGA54 522440 6451304 274931 -58 173 RC5
17THR013 Big Hill 102 MGA54 521750 6449942 28489 -60 1305 RC5
17THR014 Big Hill 104 MGA54 521628 6449796 277545 -53 130 RC5
17THR015 Big Hill 108 MGA54 521793 6449918 284847 -58 310 RC5
17THR016 Pyrite Hill 138 MGA54 518446 6449209 290391 -57 283 RC5
17THR017 Pyrite Hill 120 MGA54 518449 6449263 293147 -56 2815 RC5
17THR018 Pyrite Hill 78 MGA54 518027 6449806 289567 -60 222 RC5
17THR019 Pyrite Hill 72 MGA54 518105 6449754 287701 -55 222 RC5
17THR020 Pyrite Hill 66 MGA54 518166 6449695 288685 -60 222 RC5
17THR021 Pyrite Hill 78 MGA54 518183 6449717 286007 -60 222 RC5
17THR022 Pyrite Hill 156 MGA54 518510 6449306 28682 -55 281 RC5
17THR023 Pyrite Hill 150 MGA54 518506 6449377 289481 -57 2645 RC5
17THR024 Pyrite Hill 150 MGA54 518457 6449498 288137 -595 2285 RC5
17THR025 Pyrite Hill 114 MGA54 518311 6449609 287463 -60 222 RC5
17THR026 Pyrite Hill 114 MGA54 518268 6449681 284164 -60 222 RC5
17THR027 Pyrite Hill 72 MGA54 518243 6449646 287176 -60 222 RC5
17THR028 Railway 150 MGA54 522457 6451167 300659 -60 350 RC5
17THR029 Railway 162 MGA54 522482 6451084 295964 -60 175 RC5
17THR030 Railway 138 MGA54 522783 6451423 270814 -55 140 RC5
17THR031 Railway 120 MGA54 522945 6451566 27619 -55 145 RC5
17THR032 Railway 132 MGA54 522819 6451473 273712 -53 140 RC5
17THR033 Railway 120 MGA54 522501 6451315 26963 -60 175 RC5
17THR034 Railway 132 MGA54 522321 6451214 275947 -55 127 RC5
17THR035 Railway 156 MGA54 522259 6451120 275749 -552 130 RC5
17THR036 Railway 92 MGA54 522186 6450998 275339 -612 130 RC5
17THR037 Railway 126 MGA54 522148 6450941 274202 -55 126 RC5
17THR038 Railway 168 MGA54 521927 6450619 289555 -55 108 RC5
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 25
Historic down-hole information
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
67TH01 Pyrite Hill 3042 MGA94_54 518564805 644946003 280643 -55 2606 DDH1
70TH02 Pyrite Hill 1486 MGA94_54 51827242 644968054 28408 -61 2186 DDH1
70TH03 Pyrite Hill 1414 MGA94_54 51844985 644921188 28981 -62 2836 DDH1
70BH01 Big Hill 1027 MGA94_54 52085056 64493085 28456 -47 3186 DDH1
70BH02 Big Hill 1039 MGA94_54 52078612 64492644 2801 -50 3186 DDH1
80PYH13 Pyrite Hill 77 MGA94_54 5183582 64490377 29035 -50 2807 DDH1
80PYH14 Pyrite Hill 3003 MGA94_54 51866118 644928762 27796 -60 2807 DDH1
80PYH03 Pyrite Hill 35 MGA94_54 5182515 64495699 2994 -60 2207 PDDH2 2280BGH09 Big Hill 1005 MGA94_54 52065743 644929252 27280 -50 1447 DDH1
80PYH01 Pyrite Hill 2453 MGA94_54 5182462 64495657 3011 -60 2027 PDDH2 680PYH02 Pyrite Hill 513 MGA94_54 5182607 64495742 2976 -60 2207 PDDH2 335880PYH04 Pyrite Hill 55 MGA94_54 51836655 644923174 30834 -60 2957 PDDH2 38780PYH05 Pyrite Hill 936 MGA94_54 51822697 644967819 28518 -49 2227 PDDH2 1880PYH06 Pyrite Hill 855 MGA94_54 51816348 64497573 28373 -544 2227 PDDH2 1880PYH07 Pyrite Hill 945 MGA94_54 51808406 644981836 28516 -55 2227 PDDH2 1280PYH08 Pyrite Hill 110 MGA94_54 51800954 644988543 28614 -60 2227 PDDH2 880PYH09 Pyrite Hill 1005 MGA94_54 5179174 644993176 28655 -485 2227 PDDH2 880PYH10 Pyrite Hill 1453 MGA94_54 51839296 644956596 28553 -50 2227 PDDH2 25580PYH11 Pyrite Hill 1031 MGA94_54 51844096 644932952 29725 -50 2807 PDDH2 1880PYH12 Pyrite Hill 1095 MGA94_54 51840728 644913731 29263 -50 2807 PDDH2 4280BGH05 Big Hill 5486 MGA94_54 52095535 644953441 28893 -60 1637 RCDDH3 45598TC01 Railway 100 MGA94_54 52275006 645133973 26727 -60 1589 RC5
98TC02 Railway 100 MGA94_54 52239241 645138683 26678 -60 1409 RC5
98TC03 Big Hill 84 MGA94_54 52081645 644936939 31305 -60 1359 RC5
98TC04 Big Hill 13825 MGA94_54 52086005 644945085 30409 -60 1409 RC5
98TC05 Big Hill 70 MGA94_54 520728 644932807 28863 -50 1229 RC5
98TC06 Big Hill 108 MGA94_54 520715 6449343 28513 -60 1259 RC5
98TC07 Big Hill 120 MGA94_54 52078597 644938821 29922 -50 1339 RC5
98TC08 Big Hill 90 MGA94_54 52080195 644947781 29101 -60 1509 RC5
98TC09 Big Hill 114 MGA94_54 52082221 644946079 29625 -60 1339 RC5
98TC10 Big Hill 134 MGA94_54 521018 6449576 2815 -50 1729 RC5
98TC11 Railway 35 MGA94_54 5224112 645137396 26701 -60 1329 RC5
80BGH06 Big Hill 6804 MGA94_54 520880 6449472 299 -60 1707 RCDDH3 5880BGH08 Big Hill 797 MGA94_54 52076879 644939093 29629 -60 1267 RCDDH3 69980BGH07 Big Hill 23 MGA94_54 52113656 6449599 27411 -60 1777 RC5
93MGM01 Pyrite Hill 70 MGA94_54 51818544 644971377 28628 -60 2228 RDDH4 2493MGM02 Pyrite Hill 180 MGA94_54 51851545 644945467 28479 -60 2588 RDDH4 4811PHR01 Pyrite Hill 150 MGA94_54 51843547 644907276 28534 -60 27906 RC5
11PHR02 Pyrite Hill 198 MGA94_54 51849992 644915931 28379 -60 27906 RC5
11PHR03 Pyrite Hill 240 MGA94_54 5185603 644918961 28026 -60 27906 RC5
11PHR04 Pyrite Hill 186 MGA94_54 51852863 6449257 28403 -60 27906 RC5
11PHR05 Pyrite Hill 234 MGA94_54 51858425 644939762 28022 -60 25906 RC5
11PHR06 Pyrite Hill 180 MGA94_54 5184909 644952259 28402 -60 23406 RC5
11PHR07 Pyrite Hill 174 MGA94_54 51841347 64495929 28286 -60 21906 RC5
11PHR08 Pyrite Hill 180 MGA94_54 51834274 644965585 28288 -60 21806 RC5
11PSR01 Pyrite Hill 59 MGA94_54 51874273 6448864 26838 -60 25806 RC5
11PSR02 Pyrite Hill 132 MGA94_54 51871938 644896001 27041 -60 25506 RC5
11PSR03 Pyrite Hill 78 MGA94_54 51868699 644905535 27279 -60 25506 RC5
12BER01 Railway 157 MGA94_54 52166731 644989323 27769 -60 141 RC5
12BER02 Railway 132 MGA94_54 52121267 644969067 27353 -60 162 RC5
12BER03 Railway 151 MGA94_54 52187901 645043547 28859 -60 102 RC5
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 26
Historic down-hole information (continued)
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
12BER04 Railway 148 MGA94_54 52235392 645126835 27435 -60 131 RC5
12BER05 Railway 145 MGA94_54 52243947 645116784 29973 -60 124 RC5
12BER06 Railway 169 MGA94_54 52248137 645109135 29595 -60 118 RC5
12BER07 Railway 115 MGA94_54 52232372 645074875 27791 -60 144 RC5
12BER08 Railway 193 MGA94_54 52222079 64508118 27316 -60 129 RC5
12BER09 Railway 13975 MGA94_54 52210125 645088144 27591 -60 129 RC5
12BER10 Railway 151 MGA94_54 52195345 645071618 28449 -60 129 RC5
12BER11 Railway 193 MGA94_54 52273722 645137661 26583 -60 153 RC5
12BER12 Railway 111 MGA94_54 52290973 645151676 27736 -60 153 RC5
12BER13 Railway 205 MGA94_54 52288381 645155754 27103 -60 156 RC5
12BER14 Railway 151 MGA94_54 52312483 645163707 28836 -60 152 RC5
12BER15 Railway 109 MGA94_54 5233113 64518417 28395 -60 154 RC5
12BER16 Railway 115 MGA94_54 52299408 645159199 27595 -60 156 RC5
12BER17 Railway 1155 MGA94_54 5225165 645131494 2691 -60 153 RC5
12BER18 Railway 157 MGA94_54 52233275 645128131 27229 -60 129 RC5
12BER19 Railway 97 MGA94_54 52224055 645106715 27616 -60 135 RC5
12BER20 Railway 120 MGA94_54 52129169 644973363 27695 -60 165 RC5
13BED01 Railway 3492 MGA94_54 52248021 645109243 29601 -60 3007 DDH1
16DM01 Pyrite Hill 1616 MGA94_54 51841138 644959389 28269 -60 2155 DDH1
16DM02 Pyrite Hill 1834 MGA94_54 51852662 644926158 28418 -60 2850 DDH1
16DM03 Big Hill 1265 MGA94_54 5210371 644956749 28301 -60 1585 DDH1
16DM04 Big Hill 1054 MGA94_54 52081474 64494644 29618 -55 1285 DDH1
16DM05 Railway 2465 MGA94_54 5221037 645088187 27662 -60 1285 DDH1
16DM06 Railway 1604 MGA94_54 52291157 645151913 2785 -60 1525 DDH1
16DM07 Railway 2425 MGA94_54 52299526 645159826 27636 -60 1561 DDH1
16DM08 Railway 2585 MGA94_54 52235145 645127307 27385 -60 1309 DDH1
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 27
Down hole length and interception depth ndash 2017 holes
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THD01 34 123 89 982 94 87
including 35 41 6 1143 119 106
and 50 55 5 1311 131 115
and 81 122 41 1366 118 11
17THD02 47 134 87 911 88 92
including 48 77 29 1238 111 114
and 116 134 18 1199 110 111
17THD03 40 635 235 894 116 108
including 49 63 14 1076 143 124
17THD04 20 29 9 1033 86 872 96 24 703 88 81
17THD05 44 60 16 993 98 85
including 44 56 12 1094 109 94
71 76 5 840 64 6317THD06 39 85 46 1136 114 101
including 40 70 30 1227 122 104
and 76 85 9 1148 107 100
17THD07 15 128 113 879 81 88
including 47 55 8 1048 117 103
and 61 102 41 1452 125 123
142 152 10 704 6 102199 204 5 706 49 65
17THR001 27 63 36 1075 106 104
including 37 63 26 1280 119 115
75 84 9 755 91 139
17THR002 37 43 6 711 69 82
91 136 45 983 98 105
including 102 136 34 1190 117 118
17THR003 4 59 55 937 93 94
including 10 46 36 1212 116 110
17THR004 49 146 97 888 102 102
including 51 113 62 1051 114 113
17THR005 52 72 20 1053 128 126
including 53 63 10 1145 125 130
17THR006 14 74 60 754 86 87
including 17 44 27 1176 125 121
17THR007 5 22 17 837 0 125
including 12 19 7 1049 0 105
128 154 26 1034 114 115
including 128 146 18 1321 144 143
17THR008 37 78 41 1319 122 11217THR009 29 65 36 957 94 92including 34 60 26 1150 111 102
100 105 5 833 129 12717THR010 51 57 6 729 49 5317THR011 30 83 53 1116 12 109
including 31 62 31 1423 155 135
17THR012 50 117 67 748 75 86
including 59 67 8 1084 103 126
and 75 102 27 1120 110 113
172 177 5 725 64 64
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 28
Down hole length and interception depth ndash 2017 holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THR013 19 73 54 888 54 5
including 19 29 10 2576 88 77
17THR014 12 45 33 749 81 74
including 25 33 8 1148 113 94
17THR015 40 48 8 995 89 8117THR016 66 115 49 1096 129 134
including 66 81 15 1184 142 139
and 89 114 25 1183 134 141
17THR017 54 112 58 1383 132 128
including 56 85 29 2042 183 158
17THR018 47 63 16 1124 151 14117THR019 42 59 17 1032 107 114
17THR020 29 49 20 1067 116 115
including 29 36 7 1352 135 126
17THR021 44 64 20 1204 131 12717THR022 101 138 37 1152 107 1217THR023 91 137 46 1271 139 133
including 91 97 6 1953 187 166
and 114 125 11 2707 311 265
17THR027 29 54 25 1176 126 118
including 30 47 17 1382 141 125
Down hole length and interception depth ndash historic holes
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
11PHR02 74 114 40 875 108 116
11PHR03 150 162 12 750 83 96
11PHR03 163 190 27 732 106 119
11PHR03 206 227 21 988 117 13
11PHR04 124 172 48 1049 128 129
11PHR05 197 219 22 1138 107 133
11PHR06 104 135 31 854 83 115
11PHR06 155 171 16 1315 12 122
11PHR07 96 147 51 941 95 99
11PHR08 103 115 12 1417 139 148
11PHR08 126 144 18 1048 126 142
12BER01 115 139 24 768 72 74
12BER02 18 25 7 1062 103 93
12BER02 113 123 10 907 85 86
12BER04 41 90 49 1191 114 127
12BER04 121 126 5 1241 9 112
12BER05 33 39 6 1109 79 92
12BER05 65 76 11 721 63 66
12BER06 131 169 38 844 83 128
12BER07 38 43 5 704 10 101
12BER09 33 92 59 841 9 116
12BER11 31 62 31 738 84 126
12BER11 92 159 67 1061 10 131
12BER11 173 193 20 737 67 83
12BER12 27 81 54 1430 181 189
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 29
Down hole length and interception depth ndash historic holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
12BER13 21 42 21 761 74 91
12BER13 65 75 10 1882 204 216
12BER14 28 55 27 1013 125 129
12BER16 25 100 75 1008 106 107
12BER17 92 99 7 739 6 63
12BER18 117 157 40 1017 112 114
12BER19 34 56 22 1151 104 108
12BER19 68 75 7 780 61 6
12BER20 21 46 25 731 69 75
13BED01 266 2915 255 872 85 78
16DM01 96 147 51 851 91 86
16DM02 127 172 45 1118 138 136
16DM03 104 111 7 838 103 9
16DM04 91 99 8 887 91 84
16DM05 30 103 73 793 82 9
16DM05 199 211 12 830 251 221
16DM06 28 84 56 1280 162 167
16DM06 138 146 8 722 78 112
16DM07 35 60 25 1232 111 111
16DM07 71 104 33 1224 133 134
16DM08 76 100 24 1026 11 12
16DM08 165 177 12 921 122 126
17THD01 34 123 89 982 94 87
17THD02 47 134 87 911 88 92
17THD03 40 635 235 894 116 108
17THD04 20 29 9 1033 86 8
17THD04 72 96 24 703 88 81
17THD05 44 60 16 993 98 85
17THD05 71 76 5 840 64 63
17THD06 39 85 46 1136 114 101
17THD07 15 128 113 879 81 88
17THD07 142 152 10 704 6 102
17THD07 199 204 5 706 49 65
17THR001 27 63 36 1075 106 104
17THR001 75 84 9 755 91 139
17THR002 37 43 6 711 69 82
17THR002 91 136 45 983 98 105
17THR003 4 59 55 937 93 94
17THR004 49 146 97 888 102 102
17THR005 52 72 20 1053 128 126
17THR006 14 74 60 754 86 87
17THR007 5 22 17 837 0 125
17THR007 128 154 26 1034 114 115
17THR008 37 78 41 1319 122 112
17THR009 29 65 36 957 94 92
17THR009 100 105 5 833 129 127
17THR010 51 57 6 729 49 53
17THR011 30 83 53 1116 12 109
17THR012 50 117 67 748 75 86
17THR012 172 177 5 725 64 64
17THR013 19 73 54 888 54 5
17THR014 12 45 33 749 81 74
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 30
Down hole length and interception depth ndash historic holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THR015 40 48 8 995 89 81
17THR016 66 115 49 1096 129 134
17THR017 54 112 58 1383 132 128
17THR018 47 63 16 1124 151 141
17THR019 42 59 17 1032 32 114
17THR020 29 49 20 1067 116 115
17THR021 44 64 20 1204 131 127
17THR022 101 138 37 1152 107 12
17THR023 91 137 46 1271 139 133
17THR027 29 54 25 1176 126 118
67TH01 12344 20001 7657 979 0 0
70BH01 3962 5334 1372 3323 31 0
70BH01 6431 8443 2012 1203 95 0
70BH02 7406 8686 128 704 75 0
70TH02 78 841 61 1666 175 154
70TH02 871 1021 15 1661 8 72
70TH03 777 1295 518 1016 129 132
80BGH05 39 49 10 752 0 0
80BGH06 18 6804 5004 969 0 0
80BGH08 44 7815 3415 939 0 0
80PYH01 75 17 95 725 0 0
80PYH02 341 4825 1415 1121 0 0
80PYH03 23 35 12 711 0 0
80PYH04 3975 55 1525 735 0 0
80PYH05 367 65 283 1160 118 0
80PYH06 54 62 8 905 0 0
80PYH07 67 794 124 1113 125 0
80PYH10 4845 1374 8895 831 86 0
80PYH11 346 465 119 916 8 0
80PYH11 572 9105 3385 1239 106 0
80PYH12 302 365 63 791 102 0
80PYH12 8515 908 565 857 146 0
80PYH14 2518 2734 216 1252 131 0
93MGM02 85 160 75 941 85 0
98TC01 20 47 27 744 91 126
98TC01 48 71 23 917 119 164
98TC03 34 45 11 1480 55 6
98TC03 68 79 11 1095 43 42
98TC04 84 94 10 966 39 4
98TC04 107 133 26 771 77 82
98TC05 24 62 38 754 64 7
98TC06 66 72 6 727 104 111
98TC06 76 101 25 767 101 106
98TC07 35 46 11 1546 165 171
98TC07 61 82 21 728 91 94
98TC09 32 39 7 716 49 174
98TC09 82 107 25 732 6 67
98TC10 101 125 24 732 79 8
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 31
Criteria JORC Code Explanation Commentary
Data aggregation methods
a In reporting Exploration Results weighting averaging techniques maximum andor minimum grade truncations (eg cutting of high grades) and cut-off grades are usually Material and should be stated
a Where aggregate intercepts incorporate short lengths of high grade results and longer lengths of low grade results the procedure used for such aggregation should be stated and some typical examples of such aggregations should be shown in detail
a The assumptions used for any reporting of metal equivalent values should be clearly stated
Drilling a Drill hole intercept grades are typically reported as down-hole
length-weighted averages with any non-recovered sample within the reported intervals treated as no grade The cut-off used for selecting significant intersections is selected to reflect the overall tenor of mineralisation in most cases 500ppm cobalt
a No top cuts have been applied when calculating average grades for reported significant intersections
a No metal equivalent values are reported
Relationship between mineralis- ation widths and intercept lengths
a These relationships are particularly important in the reporting of Exploration Results
a If the geometry of the mineralisation with respect to the drillhole angle is known its nature should be reported
a If it is not known and only the down hole lengths are reported there should be a clear statement to this effect (eg lsquodown hole length true width not knownrsquo)
a Drill holes at the Thackaringa project are typically angled at 50deg or 60deg and drilled perpendicular to the mineralised trend with drilling orientations adjusted along strike to accommodate folded geological sequences
a Mineralisation at the Big Hill and Railway prospects is steeply dipping and consequently mineralised intersections will be greater than true width At Pyrite Hill mineralisation is gently dipping and mineralised intersections will be close to true width
a There is insufficient geological knowledge to accurately estimate true widths and as such all drill intersections are reported as down hole lengths
Diagrams a Appropriate maps and sections (with scales) and tabulations of intercepts should be included for any significant discovery being reported These should include but not be limited to a plan view of drill hole collar locations and appropriate sectional views
a Appropriate maps and sections are presented in the accompa-nying ASX release
Balanced reporting
a Where comprehensive reporting of all exploration results is not practicable representative reporting of both low and high grades andor widths should be practiced to avoid misleading reporting of Exploration Results
a Only mineralised drill hole intersections regarded as highly anomalous and of economic interest are reported The proportion of each hole represented by the reported intervals can be ascertained from the sum of the reported intervals divided by the total drill hole depth
a All assay results for drill holes included in the various Mineral Resource estimates have been considered and comprise results not necessarily regarded as anomalous
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 32
Criteria JORC Code Explanation Commentary
Other substantive exploration data
a Other exploration data if meaningful and material should be reported including (but not limited to) geological obser-vations geophysical survey results geochemical survey results bulk samples ndash size and method of treatment metallurgical test results bulk density groun d- water geotechnical and rock characteristics potential deleterious or contaminating substances
a No further exploration data is deemed material to the results presented in this release
Further work a The nature and scale of planned further work (eg tests for lateral extensions or depth extensions or large-scale step-out drilling)
a Diagrams clearly highlighting the areas of possible extensions including the main geological interpretations and future drilling areas provided this information is not commercially sensitive
a The nature and scale of planned further work will be determined following the completion of revised Mineral Resource estimation for the Thackaringa deposits scheduled for May 2017
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 18
Criteria JORC Code Explanation Commentary
Sub-sampling techniques and sample preparation (continued)
Historical Reverse Circulation Drilling a Sub-sampling of reverse circulationpercussion chips was
achieved using a cyclone with cone or riffle splitter a During drilling operations the sample cyclone and splitter were
regularly cleaned to prevent down hole sample contamination a Dry sampling was achieved with the use of adequate air using a
compressor and booster where groundwater was encountered a During reverse circulation drilling completed by Broken Hill
Prospecting duplicate samples were collected at the time of drilling These were obtained by spearing the bulk material held in the PVC sacks using a spear made of 40mm diameter PVC pipe three samples were speared through the full depth of the bulk material and these were combined to form one sample
a The Thackaringa drilling database includes a total of 139 field duplicates collected during reverse circulation drilling This reflects a ratio of approximately one field duplicate in every 32 samples (31) for drill holes where duplicates were collected (31 drill holes for 4469 metres) and an overall ratio of one field duplicate in every 42 samples (24) for all reverse circulation drill holes (43 drill holes for 58015 metres)
a Statistical analysis of field duplicates collected during drilling completed by Broken Hill Prospecting (119 duplicates representing 86 of all field duplicates) considered 18 elements of which only chromium lanthanum and titanium show some bias in the duplicate samples For cobalt the confidence limits were evenly placed either side of zero and the duplicates are deemed to be representative of the original samples
2017 Reverse Circulation Drilling a Sub-sampling of reverse circulationpercussion chips was achieved
using a riffle splitter
a During drilling operations the splitter was regularly cleaned to prevent down hole sample contamination
a Dry sampling was achieved with the use of adequate air using a compressor and booster where groundwater was encountered
a During reverse circulation drilling completed by Broken Hill Prospecting duplicate samples were collected at the time of drilling These were obtained by riffle splitting the remnant bulk sample following collection of the primary split
a Field duplicate samples were collected regularly during drilling (for every 18th sample on average)
a Assay results received to date include analysis of 120 field duplicate pairs from 24 RC drill holes
a A measure of the average precision of the sampling sample preparation and assaying methods given by the mean per cent difference (MPD) assay values of the duplicate pairs is summarised below Overall the sampling and assay precision for Co Fe and S at economically significant grades is regarded as reasonable
RC Field Duplicate Pairs
Co Cut-Off Count Co MPD S MPD Fe MPD
All 120 13 16 9
200ppm 52 13 11 10
500ppm 34 12 9 9
1000ppm 20 8 7 7
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 19
Criteria JORC Code Explanation Commentary
Quality of assay data and laboratory tests
a The nature quality and appropriateness of the assaying and laboratory procedures used and whether the technique is considered partial or total
a For geophysical tools spectrometers handheld XRF instruments etc the parameters used in determining the analysis including instrument make and model reading times calibrations factors applied and their derivation etc
a Nature of quality control proce-dures adopted (eg standards blanks duplicates external laboratory checks) and whether acceptable levels of accuracy (ie lack of bias) and precision have been established
a The nature and quality of all assaying and laboratory procedures employed for samples obtained through drilling (diamond and reverse circulation) are considered lsquoindustry standardrsquo for the respective periods
a The assay techniques employed for drilling (diamond and reverse circulation) include mixed acid digestion with ICP-OES and AAS finishes These methods are considered appropriate for the targeted mineralisation and regarded as a lsquonear totalrsquo digestion technique with resistive phases not expected to affect cobalt analyses
a All samples have been processed at independent commercial laboratories including AMDEL Australian Laboratory Services (ALS) Analabs and Genalysis
a All samples from drilling completed by Broken Hill Prospecting during 2011-2012 were assayed at ALS in Orange New South Wales All samples from drilling completed by Broken Hill Prospecting during 2016-2017 were assayed at ALS Adelaide South Australia ALS is a NATA Accredited Laboratory and qualifies for JASANZ ISO90012008 quality systems ALS maintains robust internal QAQC procedures (including analysis of standards repeats and blanks)
a To monitor the accuracy of assay results from the 2017 Thackaringa drilling CRM standards were included in the assay sample stream every 24 samples (on average) for RC chips and every 30 samples for diamond core The CRM samples were purchased from Ore Research amp Exploration Pty Ltd and the results are summarised below
Cobalt Sulphur Iron
OREAS Standard Count plusmn1SD plusmn2SD plusmn3SD plusmn3SD+ plusmn1SD plusmn2SD plusmn3SD plusmn3SD+ plusmn1SD plusmn2SD plusmn3SD plusmn3SD+
160 Low S Blank (28ppm Co) 12 10 ndash ndash 2 7 ndash ndash 5 6 2 2 2
162 Medium Grade (631ppm Co) 53 37 12 3 ndash 32 18 3 ndash 14 12 13 14
163 Low Grade (230ppm Co) 40 30 8 2 ndash 7 25 7 1 2 3 2 33
165 High Grade (2445ppm Co) 13 11 2 ndash ndash 7 5 1 ndash 1 5 2 5
166 High Grade (1970ppm Co) 35 26 8 ndash 1 27 6 ndash 2 9 5 5 16
153 114 30 5 3 80 54 11 8 32 27 24 70
75 20 3 2 52 35 7 5 21 18 16 46
Cobalt CRM Standards
Internal COB assay QAQC protocols cobalt performed well with 95 standard analyses falling within two standard deviations of the certified value and 75 within one SD No systematic out-of-specification trends were identified and there was no discernible tendency for a particular Co standard to preferentially assay either higher or lower than the certified Co concentration
Cobalt Blanks
A number of blanks were also submitted with the RC chip and diamond core samples mdash the OREAS160 CRM is essentially a low-sulphide blank with respect to cobalt (28ppm) and the results of assay of this standard are summarised in Table 1 In addition five quartz sand blanks were submitted bracketing very pyrite-rich intervals in diamond drill holes 17THD06 and 17THD07 Overall the quartz sand blanks returned a maximum of 69ppm Co 004 S and 065 Fe which are regarded as similar to background values and any contamination during sample preparation at the assay laboratory is likely to be immaterial to the final results
Based on the assay of standards and blanks with 95 of the Co results falling within two standard deviations of the certified value it is concluded that the assay results for Co are likely to be representative for the material submitted with no additional source of inaccuracy or bias identified
Sulphur CRM Standards
sulphur was reasonably well-performed with 87 of the total 153 standard analyses falling within two standard deviations of the certified value and 95 within 3SD
Iron CRM Standards
Iron analysis of standards showed poor accuracy with a tendency to assay low mdash 46 of the assays fall outside of 3 SD typically but not exclusively lower than the certified value
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 20
Criteria JORC Code Explanation Commentary
Verification of sampling and assaying
a The verification of significant intersections by either inde-pendent or alternative company personnel
a The use of twinned holes
a Documentation of primary data data entry procedures data verification data storage (physical and electronic) protocols
a Discuss any adjustment to assay data
a Historical drilling intersections were internally verified by personnel employed by previous explorers including CRAE Pty Limited Central Austin Pty Limited and Hunter Resources Broken Hill Prospecting has completed a systematic review of the related data
a The Thackaringa drilling database exists in electronic form as a Microsoft Access database Information related to individual drill holes is stored in digital files as extracted from historical reports (typically including location plan section logs photos surveys assays and petrology)
a Historical drilling data available in electronic form has been re-formatted and imported into the drilling database
a Quantitative historical drilling data including assays have been captured electronically during systematic data compilation and validation completed by Broken Hill Prospecting
a Samples returning assays below detection limits are assigned half detection limit values in the database
a All significant intersections are verified by the Companyrsquos Exploration Manager and independent geological consultant
Location of data points
a Accuracy and quality of surveys used to locate drill holes (collar and down-hole surveys) trenches mine workings and other locations used in Mineral Resource estimation
a Specification of the grid system used
a Quality and adequacy of topographic control
a Historical drill collars have been relocated and surveyed using a differential GPS (DGPS) In the instances where no collar could be located the position has been derived from georeferenced historical plans
a During systematic data validation completed in 2016 three drill holes at Big Hill were found to be incorrectly located One collar was located and surveyed by GPS and two were digitised from georeferenced historical plans (reported to the nearest metre) as the collars had been destroyed These corrections were captured in the Big Hill Mineral Resource estimate
a Down hole surveys using digital cameras were completed on all post 2000 drilling Down hole surveys for some earlier drilling were estimated from hole trace and section data where raw survey data was not reported
a All 2017 Thackaringa drill hole collars were located and surveyed with DGPS by an independent surveyor with reported accuracy of plusmn005m in horizontal and vertical measurement
a Downhole surveys using digital cameras were completed on all 2017 drill-holes
a All data is recorded in the GDA94 datum UTM Zone 54 (MGA54)
a 3D validation of drilling data has been completed by independent geological consultants to support detailed geological modelling in Microminetrade software
a The quality of topographic control is deemed adequate in consideration of the results presented in this release
Data spacing and distribution
a Data spacing for reporting of Exploration Results
a Whether the data spacing and distribution is sufficient to estab-lish the degree of geological and grade continuity appropriate for the Mineral Resource and Ore Reserve estimation procedure(s) and classifications applied
a Whether sample compositing has been applied
a The data density of existing drill holes at Thackaringa has been materially increased by the 2017 drilling program which was undertaken primarily to undertake infill drilling
a Detailed geological mapping supported by drill-hole data of sufficient spacing and distribution to establish a 3D geological model
a The level of geological and grade continuity is appropriate for the Mineral Resource estimation methodologies used and the classifications applied (being wholly Inferred Mineral Resources) Note that a recalculation of the Mineral Resource using 2017 drilling and assay data will commence in mid-2017
a No sample compositing has been applied to reported intersections
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 21
Criteria JORC Code Explanation Commentary
Orientation of data in relation to geological structure
a Whether the orientation of sampling achieves unbiased sampling of possible structures and the extent to which this is known considering the deposit type
a If the relationship between the drilling orientation and the orientation of key mineralised structures is considered to have introduced a sampling bias this should be assessed and reported if material
a The 2017 drill holes at the Thackaringa project were typically angled at -500 or -600 to the horizontal and drilled perpendicular to the mineralised trend with drilling orientations adjusted along strike to accommodate folded geological sequences
a Mineralisation at the Big Hill and Railway prospects is steeply dipping and consequently mineralised intersections will be greater than true width At Pyrite Hill mineralisation is gently dipping and mineralised intersections will be close to true width
a The drilling orientation is not considered to have introduced a sampling bias on assessment of the current geological interpretation
Sample security
a The measures taken to ensure sample security
a Sample security procedures are considered to be lsquoindustry standardrsquo for the respective periods
a Following recent drilling completed by BPL samples were trucked by an independent courier directly from Broken Hill to ALS Adelaide
a BPL consider that risks associated with sample security are limited given the nature of the targeted mineralisation
Audits or reviews
a The results of any audits or reviews of sampling techniques and data
a In late 2016 an independent validation of the Thackaringa drilling database was completed
a The data validation process consisted of systematic review of drilling data (collars assays and surveys) for identification of transcription errors
a Following review historical drill hole locations were also validated against georeferenced historical maps to confirm their location
a Three (3) drill holes at Big Hill were found to be incorrectly located One collar was located and surveyed by GPS and two were digitised from georeferenced historical plans (reported to the nearest metre) as the collars had been destroyed These corrections were captured in the Big Hill Mineral Resource estimate
a Total depths for all holes were checked against original reports
a Final 3D validation of drilling data has been completed by independent geological consultants to support detailed geological modelling in Microminetrade software
a Audits and reviews of QAQC results and procedures are further described in preceding sections of this table including Quality of assay data and laboratory tests Sub-sampling techniques and sample preparation and Logging
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 22
Section 2 Reporting of Exploration Results(Criteria listed in the preceding section also apply to this section)
Criteria JORC Code Explanation Commentary
Mineral tenement and land tenure status
a Type reference namenumber location and ownership including agreements or material issues with third parties such as joint ventures partnerships overriding royalties native title interests historical sites wilderness or national park and environmental settings
a The security of the tenure held at the time of reporting along with any known impediments to obtaining a licence to operate in the area
a The Thackaringa Cobalt project is located approximately 25 kilometres west-southwest of Broken Hill and comprises four tenements with a total area of 63 km2
Tenement
Registered amp Beneficial Holder Minerals Grant Date Expiry Date
Annual Expenditure
Commit-ment
EL6622 Broken Hill Prospecting Limited (BPL)
Group 1 30082006 29082017 $47000
EL 8143 BPL Group 1 26072013 26072017 $14000
ML86 BPL Cobalt iron nickel platinum sulphur
05111975 04112017 $75000
ML87 BPL Cobalt iron nickel platinum sulphur
05111975 04112017 $75000
a The project tenure is subject to a Farm-In agreement between Cobalt Blue Holdings Limited (COB) and Broken Hill Prospecting Limited (BPL) The nature of this agreement is detailed in the COB Replacement Prospectus (as released 4 January 2017)
a The nearest residence (Thackaringa Station) is located approxi-mately three kilometres west of EL6622
a EL6622 is intersected by the Transcontinental Railway the Barrier Highway is located the north of the licence boundaries
a The majority of the project tenure is covered by Western Lands Lease which is considered to extinguish native title interest However Native Title Determination NC9732 (Barkandji Traditional Owners 8) is current over the area and may be relevant to Crown Land parcels (eg public roads) within the project area
a The project tenure is more than 90 kilometres from the nearest National Park and or Wilderness Area (Kinchega National Park) and approximately 20 kilometres south of the nearest Water Supply Reserve (Umberumberka Reservoir Water Supply Reserve)
a The Company is not aware of any impediments to obtaining a licence to operate in the area
Exploration done by other parties
a Acknowledgment and appraisal of exploration by other parties
a A detailed and complete record of all exploration activities undertaken prior to the BPL 2016 drilling program is appended to the JORC Table 1 which forms part of the Cobalt Blue Prospectus Document available on the COB website
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 23
Criteria JORC Code Explanation Commentary
Geology a Deposit type geological setting and style of mineralisation
Regional Geological Setting a The Thackaringa project is located in a deformed and metamor-
phosed Proterozoic supracrustal succession named the Willyama Supergroup which crops out as several inliers in western New South Wales including the Broken Hill Block (Willis et al 1982)
a Exploration by BPL Limited has been focused on the discovery of cobaltiferous pyrite deposits and Broken Hill type base-metal mineralisation both of which are known from historical exploration in the district
a The project area covers portions of the Broken Hill and Thackaringa group successions which host the majority of mineralisation in the region including the Broken Hill base-metal deposit The Sundown Group suite is also present The extensive sequence of quartz-albite-plagioclase rock that hosts the cobaltiferous pyrite mineralisation is interpreted as belonging to the Himalaya Formation which is stratigraphically at the top of the Thackaringa Group
Local Geological Setting a The oldest rocks in the region belong to the Curnamona Craton
which outcrops on the Broken Hill and Euriowie blocks a The overlying Proterozoic rocks have been broadly subdivided
into three major groupings of which the oldest groups are the highly deformed metasediments and igneous derived rocks of the Thackaringa and Broken Hill groups They comprise a major part of the Willyama Supergroup and host the giant Broken Hill massive Pb-Zn-Ag sulphide ore body EL6622 is within the Broken Hill block of the Curnamona Craton
Mineralisation Style a The Thackaringa Mineral deposits (Pyrite Hill Big Hill and Railway)
are characterised by large tonnage cobaltiferous-pyrite minerali-sation hosted within siliceous albitic gneisses and schists of the Himalaya Formation
a Cobalt mineralisation exists within stratabound pyritic horizons where cobalt is present within the pyrite lattice Mineralogical studies have indicated the majority of cobalt (~85) is found in solid solution with primary pyrite (Henley 1998)
a A strong correlation between pyrite content and cobalt grade is observed
a The regional geological setting indicates additional mineralisation targets including
a Stratiform Broken Hill Type (BHT) Copper-Lead-Zinc-Silver deposits
a Copper-rich BHT deposits a Stratiform to stratabound Copper-Cobalt-Gold deposits a Epigenetic Gold and Base metal deposits
Drill hole Information
a A summary of all information mat- erial to the understanding of the exploration results including a tab- ulation of the following information for all Material drill holes
a easting and northing of the drill hole collar
a elevation or RL (Reduced Level ndash elevation above sea level in metres) of the drill hole collar
a dip and azimuth of the hole
a down hole length and interception depth
a See drill holle summaries below
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 24
Drill hole summaries
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
17THD01 Pyrite Hill 1242 MGA54 518382 6449551 28906 -40 222 DDH1
17THD02 Pyrite Hill 1497 MGA54 518475 6449445 29054 -40 258 DDH1
17THD03 Pyrite Hill 785 MGA54 518370 6449190 30328 -40 2851 DDH1
17THD04 Big Hill 1198 MGA54 521078 6449589 27841 -45 1551 DDH1
17THD05 Big Hill 995 MGA54 521669 6449889 2785 -40 131 DDH1
17THD06 Railway 1655 MGA54 521970 6450705 2872 -45 128 DDH1
17THD07 Railway 2746 MGA54 522569 6451282 27067 -45 1565 DDH1
17THD08 Railway 1325 MGA54 522784 6451280 268881 -45 326 DDH1
17THD09 Railway 1205 MGA54 522905 6451511 278471 -40 1525 DDH1
17THD10 Railway 842 MGA54 522992 6451569 279779 -45 130 DDH1
17THD11 Railway 1115 MGA54 523109 6451682 280847 -40 1605 DDH1
17THD12 Railway 1265 MGA54 522796 6451419 272936 -40 14075 DDH1
17THD13 Railway 1055 MGA54 522836 6451456 276747 -40 1385 DDH1
17THD14 Pyrite Hill 99 MGA54 518375 6449089 29425 -60 285 DDH1
17THR001 Railway 156 MGA54 522615 6451277 267561 -60 120 RC5
17THR002 Railway 160 MGA54 522573 6451299 268511 -60 120 RC5
17THR003 Railway 96 MGA54 522124 6450868 27739 -60 130 RC5
17THR004 Railway 150 MGA54 522387 6451319 271453 -60 120 RC5
17THR005 Railway 72 MGA54 522024 6450783 282154 -60 120 RC5
17THR006 Railway 114 MGA54 522049 6450780 28401 -58 125 RC5
17THR007 Railway 180 MGA54 521965 6450699 286585 -59 125 RC5
17THR008 Railway 132 MGA54 521917 6450562 291682 -56 105 RC5
17THR009 Railway 120 MGA54 521906 6450496 292751 -58 105 RC5
17THR010 Railway 72 MGA54 521959 6450398 286445 -56 285 RC5
17THR011 Railway 126 MGA54 522302 6451169 276812 -56 120 RC5
17THR012 Railway 180 MGA54 522440 6451304 274931 -58 173 RC5
17THR013 Big Hill 102 MGA54 521750 6449942 28489 -60 1305 RC5
17THR014 Big Hill 104 MGA54 521628 6449796 277545 -53 130 RC5
17THR015 Big Hill 108 MGA54 521793 6449918 284847 -58 310 RC5
17THR016 Pyrite Hill 138 MGA54 518446 6449209 290391 -57 283 RC5
17THR017 Pyrite Hill 120 MGA54 518449 6449263 293147 -56 2815 RC5
17THR018 Pyrite Hill 78 MGA54 518027 6449806 289567 -60 222 RC5
17THR019 Pyrite Hill 72 MGA54 518105 6449754 287701 -55 222 RC5
17THR020 Pyrite Hill 66 MGA54 518166 6449695 288685 -60 222 RC5
17THR021 Pyrite Hill 78 MGA54 518183 6449717 286007 -60 222 RC5
17THR022 Pyrite Hill 156 MGA54 518510 6449306 28682 -55 281 RC5
17THR023 Pyrite Hill 150 MGA54 518506 6449377 289481 -57 2645 RC5
17THR024 Pyrite Hill 150 MGA54 518457 6449498 288137 -595 2285 RC5
17THR025 Pyrite Hill 114 MGA54 518311 6449609 287463 -60 222 RC5
17THR026 Pyrite Hill 114 MGA54 518268 6449681 284164 -60 222 RC5
17THR027 Pyrite Hill 72 MGA54 518243 6449646 287176 -60 222 RC5
17THR028 Railway 150 MGA54 522457 6451167 300659 -60 350 RC5
17THR029 Railway 162 MGA54 522482 6451084 295964 -60 175 RC5
17THR030 Railway 138 MGA54 522783 6451423 270814 -55 140 RC5
17THR031 Railway 120 MGA54 522945 6451566 27619 -55 145 RC5
17THR032 Railway 132 MGA54 522819 6451473 273712 -53 140 RC5
17THR033 Railway 120 MGA54 522501 6451315 26963 -60 175 RC5
17THR034 Railway 132 MGA54 522321 6451214 275947 -55 127 RC5
17THR035 Railway 156 MGA54 522259 6451120 275749 -552 130 RC5
17THR036 Railway 92 MGA54 522186 6450998 275339 -612 130 RC5
17THR037 Railway 126 MGA54 522148 6450941 274202 -55 126 RC5
17THR038 Railway 168 MGA54 521927 6450619 289555 -55 108 RC5
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 25
Historic down-hole information
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
67TH01 Pyrite Hill 3042 MGA94_54 518564805 644946003 280643 -55 2606 DDH1
70TH02 Pyrite Hill 1486 MGA94_54 51827242 644968054 28408 -61 2186 DDH1
70TH03 Pyrite Hill 1414 MGA94_54 51844985 644921188 28981 -62 2836 DDH1
70BH01 Big Hill 1027 MGA94_54 52085056 64493085 28456 -47 3186 DDH1
70BH02 Big Hill 1039 MGA94_54 52078612 64492644 2801 -50 3186 DDH1
80PYH13 Pyrite Hill 77 MGA94_54 5183582 64490377 29035 -50 2807 DDH1
80PYH14 Pyrite Hill 3003 MGA94_54 51866118 644928762 27796 -60 2807 DDH1
80PYH03 Pyrite Hill 35 MGA94_54 5182515 64495699 2994 -60 2207 PDDH2 2280BGH09 Big Hill 1005 MGA94_54 52065743 644929252 27280 -50 1447 DDH1
80PYH01 Pyrite Hill 2453 MGA94_54 5182462 64495657 3011 -60 2027 PDDH2 680PYH02 Pyrite Hill 513 MGA94_54 5182607 64495742 2976 -60 2207 PDDH2 335880PYH04 Pyrite Hill 55 MGA94_54 51836655 644923174 30834 -60 2957 PDDH2 38780PYH05 Pyrite Hill 936 MGA94_54 51822697 644967819 28518 -49 2227 PDDH2 1880PYH06 Pyrite Hill 855 MGA94_54 51816348 64497573 28373 -544 2227 PDDH2 1880PYH07 Pyrite Hill 945 MGA94_54 51808406 644981836 28516 -55 2227 PDDH2 1280PYH08 Pyrite Hill 110 MGA94_54 51800954 644988543 28614 -60 2227 PDDH2 880PYH09 Pyrite Hill 1005 MGA94_54 5179174 644993176 28655 -485 2227 PDDH2 880PYH10 Pyrite Hill 1453 MGA94_54 51839296 644956596 28553 -50 2227 PDDH2 25580PYH11 Pyrite Hill 1031 MGA94_54 51844096 644932952 29725 -50 2807 PDDH2 1880PYH12 Pyrite Hill 1095 MGA94_54 51840728 644913731 29263 -50 2807 PDDH2 4280BGH05 Big Hill 5486 MGA94_54 52095535 644953441 28893 -60 1637 RCDDH3 45598TC01 Railway 100 MGA94_54 52275006 645133973 26727 -60 1589 RC5
98TC02 Railway 100 MGA94_54 52239241 645138683 26678 -60 1409 RC5
98TC03 Big Hill 84 MGA94_54 52081645 644936939 31305 -60 1359 RC5
98TC04 Big Hill 13825 MGA94_54 52086005 644945085 30409 -60 1409 RC5
98TC05 Big Hill 70 MGA94_54 520728 644932807 28863 -50 1229 RC5
98TC06 Big Hill 108 MGA94_54 520715 6449343 28513 -60 1259 RC5
98TC07 Big Hill 120 MGA94_54 52078597 644938821 29922 -50 1339 RC5
98TC08 Big Hill 90 MGA94_54 52080195 644947781 29101 -60 1509 RC5
98TC09 Big Hill 114 MGA94_54 52082221 644946079 29625 -60 1339 RC5
98TC10 Big Hill 134 MGA94_54 521018 6449576 2815 -50 1729 RC5
98TC11 Railway 35 MGA94_54 5224112 645137396 26701 -60 1329 RC5
80BGH06 Big Hill 6804 MGA94_54 520880 6449472 299 -60 1707 RCDDH3 5880BGH08 Big Hill 797 MGA94_54 52076879 644939093 29629 -60 1267 RCDDH3 69980BGH07 Big Hill 23 MGA94_54 52113656 6449599 27411 -60 1777 RC5
93MGM01 Pyrite Hill 70 MGA94_54 51818544 644971377 28628 -60 2228 RDDH4 2493MGM02 Pyrite Hill 180 MGA94_54 51851545 644945467 28479 -60 2588 RDDH4 4811PHR01 Pyrite Hill 150 MGA94_54 51843547 644907276 28534 -60 27906 RC5
11PHR02 Pyrite Hill 198 MGA94_54 51849992 644915931 28379 -60 27906 RC5
11PHR03 Pyrite Hill 240 MGA94_54 5185603 644918961 28026 -60 27906 RC5
11PHR04 Pyrite Hill 186 MGA94_54 51852863 6449257 28403 -60 27906 RC5
11PHR05 Pyrite Hill 234 MGA94_54 51858425 644939762 28022 -60 25906 RC5
11PHR06 Pyrite Hill 180 MGA94_54 5184909 644952259 28402 -60 23406 RC5
11PHR07 Pyrite Hill 174 MGA94_54 51841347 64495929 28286 -60 21906 RC5
11PHR08 Pyrite Hill 180 MGA94_54 51834274 644965585 28288 -60 21806 RC5
11PSR01 Pyrite Hill 59 MGA94_54 51874273 6448864 26838 -60 25806 RC5
11PSR02 Pyrite Hill 132 MGA94_54 51871938 644896001 27041 -60 25506 RC5
11PSR03 Pyrite Hill 78 MGA94_54 51868699 644905535 27279 -60 25506 RC5
12BER01 Railway 157 MGA94_54 52166731 644989323 27769 -60 141 RC5
12BER02 Railway 132 MGA94_54 52121267 644969067 27353 -60 162 RC5
12BER03 Railway 151 MGA94_54 52187901 645043547 28859 -60 102 RC5
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 26
Historic down-hole information (continued)
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
12BER04 Railway 148 MGA94_54 52235392 645126835 27435 -60 131 RC5
12BER05 Railway 145 MGA94_54 52243947 645116784 29973 -60 124 RC5
12BER06 Railway 169 MGA94_54 52248137 645109135 29595 -60 118 RC5
12BER07 Railway 115 MGA94_54 52232372 645074875 27791 -60 144 RC5
12BER08 Railway 193 MGA94_54 52222079 64508118 27316 -60 129 RC5
12BER09 Railway 13975 MGA94_54 52210125 645088144 27591 -60 129 RC5
12BER10 Railway 151 MGA94_54 52195345 645071618 28449 -60 129 RC5
12BER11 Railway 193 MGA94_54 52273722 645137661 26583 -60 153 RC5
12BER12 Railway 111 MGA94_54 52290973 645151676 27736 -60 153 RC5
12BER13 Railway 205 MGA94_54 52288381 645155754 27103 -60 156 RC5
12BER14 Railway 151 MGA94_54 52312483 645163707 28836 -60 152 RC5
12BER15 Railway 109 MGA94_54 5233113 64518417 28395 -60 154 RC5
12BER16 Railway 115 MGA94_54 52299408 645159199 27595 -60 156 RC5
12BER17 Railway 1155 MGA94_54 5225165 645131494 2691 -60 153 RC5
12BER18 Railway 157 MGA94_54 52233275 645128131 27229 -60 129 RC5
12BER19 Railway 97 MGA94_54 52224055 645106715 27616 -60 135 RC5
12BER20 Railway 120 MGA94_54 52129169 644973363 27695 -60 165 RC5
13BED01 Railway 3492 MGA94_54 52248021 645109243 29601 -60 3007 DDH1
16DM01 Pyrite Hill 1616 MGA94_54 51841138 644959389 28269 -60 2155 DDH1
16DM02 Pyrite Hill 1834 MGA94_54 51852662 644926158 28418 -60 2850 DDH1
16DM03 Big Hill 1265 MGA94_54 5210371 644956749 28301 -60 1585 DDH1
16DM04 Big Hill 1054 MGA94_54 52081474 64494644 29618 -55 1285 DDH1
16DM05 Railway 2465 MGA94_54 5221037 645088187 27662 -60 1285 DDH1
16DM06 Railway 1604 MGA94_54 52291157 645151913 2785 -60 1525 DDH1
16DM07 Railway 2425 MGA94_54 52299526 645159826 27636 -60 1561 DDH1
16DM08 Railway 2585 MGA94_54 52235145 645127307 27385 -60 1309 DDH1
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 27
Down hole length and interception depth ndash 2017 holes
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THD01 34 123 89 982 94 87
including 35 41 6 1143 119 106
and 50 55 5 1311 131 115
and 81 122 41 1366 118 11
17THD02 47 134 87 911 88 92
including 48 77 29 1238 111 114
and 116 134 18 1199 110 111
17THD03 40 635 235 894 116 108
including 49 63 14 1076 143 124
17THD04 20 29 9 1033 86 872 96 24 703 88 81
17THD05 44 60 16 993 98 85
including 44 56 12 1094 109 94
71 76 5 840 64 6317THD06 39 85 46 1136 114 101
including 40 70 30 1227 122 104
and 76 85 9 1148 107 100
17THD07 15 128 113 879 81 88
including 47 55 8 1048 117 103
and 61 102 41 1452 125 123
142 152 10 704 6 102199 204 5 706 49 65
17THR001 27 63 36 1075 106 104
including 37 63 26 1280 119 115
75 84 9 755 91 139
17THR002 37 43 6 711 69 82
91 136 45 983 98 105
including 102 136 34 1190 117 118
17THR003 4 59 55 937 93 94
including 10 46 36 1212 116 110
17THR004 49 146 97 888 102 102
including 51 113 62 1051 114 113
17THR005 52 72 20 1053 128 126
including 53 63 10 1145 125 130
17THR006 14 74 60 754 86 87
including 17 44 27 1176 125 121
17THR007 5 22 17 837 0 125
including 12 19 7 1049 0 105
128 154 26 1034 114 115
including 128 146 18 1321 144 143
17THR008 37 78 41 1319 122 11217THR009 29 65 36 957 94 92including 34 60 26 1150 111 102
100 105 5 833 129 12717THR010 51 57 6 729 49 5317THR011 30 83 53 1116 12 109
including 31 62 31 1423 155 135
17THR012 50 117 67 748 75 86
including 59 67 8 1084 103 126
and 75 102 27 1120 110 113
172 177 5 725 64 64
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 28
Down hole length and interception depth ndash 2017 holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THR013 19 73 54 888 54 5
including 19 29 10 2576 88 77
17THR014 12 45 33 749 81 74
including 25 33 8 1148 113 94
17THR015 40 48 8 995 89 8117THR016 66 115 49 1096 129 134
including 66 81 15 1184 142 139
and 89 114 25 1183 134 141
17THR017 54 112 58 1383 132 128
including 56 85 29 2042 183 158
17THR018 47 63 16 1124 151 14117THR019 42 59 17 1032 107 114
17THR020 29 49 20 1067 116 115
including 29 36 7 1352 135 126
17THR021 44 64 20 1204 131 12717THR022 101 138 37 1152 107 1217THR023 91 137 46 1271 139 133
including 91 97 6 1953 187 166
and 114 125 11 2707 311 265
17THR027 29 54 25 1176 126 118
including 30 47 17 1382 141 125
Down hole length and interception depth ndash historic holes
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
11PHR02 74 114 40 875 108 116
11PHR03 150 162 12 750 83 96
11PHR03 163 190 27 732 106 119
11PHR03 206 227 21 988 117 13
11PHR04 124 172 48 1049 128 129
11PHR05 197 219 22 1138 107 133
11PHR06 104 135 31 854 83 115
11PHR06 155 171 16 1315 12 122
11PHR07 96 147 51 941 95 99
11PHR08 103 115 12 1417 139 148
11PHR08 126 144 18 1048 126 142
12BER01 115 139 24 768 72 74
12BER02 18 25 7 1062 103 93
12BER02 113 123 10 907 85 86
12BER04 41 90 49 1191 114 127
12BER04 121 126 5 1241 9 112
12BER05 33 39 6 1109 79 92
12BER05 65 76 11 721 63 66
12BER06 131 169 38 844 83 128
12BER07 38 43 5 704 10 101
12BER09 33 92 59 841 9 116
12BER11 31 62 31 738 84 126
12BER11 92 159 67 1061 10 131
12BER11 173 193 20 737 67 83
12BER12 27 81 54 1430 181 189
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 29
Down hole length and interception depth ndash historic holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
12BER13 21 42 21 761 74 91
12BER13 65 75 10 1882 204 216
12BER14 28 55 27 1013 125 129
12BER16 25 100 75 1008 106 107
12BER17 92 99 7 739 6 63
12BER18 117 157 40 1017 112 114
12BER19 34 56 22 1151 104 108
12BER19 68 75 7 780 61 6
12BER20 21 46 25 731 69 75
13BED01 266 2915 255 872 85 78
16DM01 96 147 51 851 91 86
16DM02 127 172 45 1118 138 136
16DM03 104 111 7 838 103 9
16DM04 91 99 8 887 91 84
16DM05 30 103 73 793 82 9
16DM05 199 211 12 830 251 221
16DM06 28 84 56 1280 162 167
16DM06 138 146 8 722 78 112
16DM07 35 60 25 1232 111 111
16DM07 71 104 33 1224 133 134
16DM08 76 100 24 1026 11 12
16DM08 165 177 12 921 122 126
17THD01 34 123 89 982 94 87
17THD02 47 134 87 911 88 92
17THD03 40 635 235 894 116 108
17THD04 20 29 9 1033 86 8
17THD04 72 96 24 703 88 81
17THD05 44 60 16 993 98 85
17THD05 71 76 5 840 64 63
17THD06 39 85 46 1136 114 101
17THD07 15 128 113 879 81 88
17THD07 142 152 10 704 6 102
17THD07 199 204 5 706 49 65
17THR001 27 63 36 1075 106 104
17THR001 75 84 9 755 91 139
17THR002 37 43 6 711 69 82
17THR002 91 136 45 983 98 105
17THR003 4 59 55 937 93 94
17THR004 49 146 97 888 102 102
17THR005 52 72 20 1053 128 126
17THR006 14 74 60 754 86 87
17THR007 5 22 17 837 0 125
17THR007 128 154 26 1034 114 115
17THR008 37 78 41 1319 122 112
17THR009 29 65 36 957 94 92
17THR009 100 105 5 833 129 127
17THR010 51 57 6 729 49 53
17THR011 30 83 53 1116 12 109
17THR012 50 117 67 748 75 86
17THR012 172 177 5 725 64 64
17THR013 19 73 54 888 54 5
17THR014 12 45 33 749 81 74
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 30
Down hole length and interception depth ndash historic holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THR015 40 48 8 995 89 81
17THR016 66 115 49 1096 129 134
17THR017 54 112 58 1383 132 128
17THR018 47 63 16 1124 151 141
17THR019 42 59 17 1032 32 114
17THR020 29 49 20 1067 116 115
17THR021 44 64 20 1204 131 127
17THR022 101 138 37 1152 107 12
17THR023 91 137 46 1271 139 133
17THR027 29 54 25 1176 126 118
67TH01 12344 20001 7657 979 0 0
70BH01 3962 5334 1372 3323 31 0
70BH01 6431 8443 2012 1203 95 0
70BH02 7406 8686 128 704 75 0
70TH02 78 841 61 1666 175 154
70TH02 871 1021 15 1661 8 72
70TH03 777 1295 518 1016 129 132
80BGH05 39 49 10 752 0 0
80BGH06 18 6804 5004 969 0 0
80BGH08 44 7815 3415 939 0 0
80PYH01 75 17 95 725 0 0
80PYH02 341 4825 1415 1121 0 0
80PYH03 23 35 12 711 0 0
80PYH04 3975 55 1525 735 0 0
80PYH05 367 65 283 1160 118 0
80PYH06 54 62 8 905 0 0
80PYH07 67 794 124 1113 125 0
80PYH10 4845 1374 8895 831 86 0
80PYH11 346 465 119 916 8 0
80PYH11 572 9105 3385 1239 106 0
80PYH12 302 365 63 791 102 0
80PYH12 8515 908 565 857 146 0
80PYH14 2518 2734 216 1252 131 0
93MGM02 85 160 75 941 85 0
98TC01 20 47 27 744 91 126
98TC01 48 71 23 917 119 164
98TC03 34 45 11 1480 55 6
98TC03 68 79 11 1095 43 42
98TC04 84 94 10 966 39 4
98TC04 107 133 26 771 77 82
98TC05 24 62 38 754 64 7
98TC06 66 72 6 727 104 111
98TC06 76 101 25 767 101 106
98TC07 35 46 11 1546 165 171
98TC07 61 82 21 728 91 94
98TC09 32 39 7 716 49 174
98TC09 82 107 25 732 6 67
98TC10 101 125 24 732 79 8
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 31
Criteria JORC Code Explanation Commentary
Data aggregation methods
a In reporting Exploration Results weighting averaging techniques maximum andor minimum grade truncations (eg cutting of high grades) and cut-off grades are usually Material and should be stated
a Where aggregate intercepts incorporate short lengths of high grade results and longer lengths of low grade results the procedure used for such aggregation should be stated and some typical examples of such aggregations should be shown in detail
a The assumptions used for any reporting of metal equivalent values should be clearly stated
Drilling a Drill hole intercept grades are typically reported as down-hole
length-weighted averages with any non-recovered sample within the reported intervals treated as no grade The cut-off used for selecting significant intersections is selected to reflect the overall tenor of mineralisation in most cases 500ppm cobalt
a No top cuts have been applied when calculating average grades for reported significant intersections
a No metal equivalent values are reported
Relationship between mineralis- ation widths and intercept lengths
a These relationships are particularly important in the reporting of Exploration Results
a If the geometry of the mineralisation with respect to the drillhole angle is known its nature should be reported
a If it is not known and only the down hole lengths are reported there should be a clear statement to this effect (eg lsquodown hole length true width not knownrsquo)
a Drill holes at the Thackaringa project are typically angled at 50deg or 60deg and drilled perpendicular to the mineralised trend with drilling orientations adjusted along strike to accommodate folded geological sequences
a Mineralisation at the Big Hill and Railway prospects is steeply dipping and consequently mineralised intersections will be greater than true width At Pyrite Hill mineralisation is gently dipping and mineralised intersections will be close to true width
a There is insufficient geological knowledge to accurately estimate true widths and as such all drill intersections are reported as down hole lengths
Diagrams a Appropriate maps and sections (with scales) and tabulations of intercepts should be included for any significant discovery being reported These should include but not be limited to a plan view of drill hole collar locations and appropriate sectional views
a Appropriate maps and sections are presented in the accompa-nying ASX release
Balanced reporting
a Where comprehensive reporting of all exploration results is not practicable representative reporting of both low and high grades andor widths should be practiced to avoid misleading reporting of Exploration Results
a Only mineralised drill hole intersections regarded as highly anomalous and of economic interest are reported The proportion of each hole represented by the reported intervals can be ascertained from the sum of the reported intervals divided by the total drill hole depth
a All assay results for drill holes included in the various Mineral Resource estimates have been considered and comprise results not necessarily regarded as anomalous
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 32
Criteria JORC Code Explanation Commentary
Other substantive exploration data
a Other exploration data if meaningful and material should be reported including (but not limited to) geological obser-vations geophysical survey results geochemical survey results bulk samples ndash size and method of treatment metallurgical test results bulk density groun d- water geotechnical and rock characteristics potential deleterious or contaminating substances
a No further exploration data is deemed material to the results presented in this release
Further work a The nature and scale of planned further work (eg tests for lateral extensions or depth extensions or large-scale step-out drilling)
a Diagrams clearly highlighting the areas of possible extensions including the main geological interpretations and future drilling areas provided this information is not commercially sensitive
a The nature and scale of planned further work will be determined following the completion of revised Mineral Resource estimation for the Thackaringa deposits scheduled for May 2017
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 19
Criteria JORC Code Explanation Commentary
Quality of assay data and laboratory tests
a The nature quality and appropriateness of the assaying and laboratory procedures used and whether the technique is considered partial or total
a For geophysical tools spectrometers handheld XRF instruments etc the parameters used in determining the analysis including instrument make and model reading times calibrations factors applied and their derivation etc
a Nature of quality control proce-dures adopted (eg standards blanks duplicates external laboratory checks) and whether acceptable levels of accuracy (ie lack of bias) and precision have been established
a The nature and quality of all assaying and laboratory procedures employed for samples obtained through drilling (diamond and reverse circulation) are considered lsquoindustry standardrsquo for the respective periods
a The assay techniques employed for drilling (diamond and reverse circulation) include mixed acid digestion with ICP-OES and AAS finishes These methods are considered appropriate for the targeted mineralisation and regarded as a lsquonear totalrsquo digestion technique with resistive phases not expected to affect cobalt analyses
a All samples have been processed at independent commercial laboratories including AMDEL Australian Laboratory Services (ALS) Analabs and Genalysis
a All samples from drilling completed by Broken Hill Prospecting during 2011-2012 were assayed at ALS in Orange New South Wales All samples from drilling completed by Broken Hill Prospecting during 2016-2017 were assayed at ALS Adelaide South Australia ALS is a NATA Accredited Laboratory and qualifies for JASANZ ISO90012008 quality systems ALS maintains robust internal QAQC procedures (including analysis of standards repeats and blanks)
a To monitor the accuracy of assay results from the 2017 Thackaringa drilling CRM standards were included in the assay sample stream every 24 samples (on average) for RC chips and every 30 samples for diamond core The CRM samples were purchased from Ore Research amp Exploration Pty Ltd and the results are summarised below
Cobalt Sulphur Iron
OREAS Standard Count plusmn1SD plusmn2SD plusmn3SD plusmn3SD+ plusmn1SD plusmn2SD plusmn3SD plusmn3SD+ plusmn1SD plusmn2SD plusmn3SD plusmn3SD+
160 Low S Blank (28ppm Co) 12 10 ndash ndash 2 7 ndash ndash 5 6 2 2 2
162 Medium Grade (631ppm Co) 53 37 12 3 ndash 32 18 3 ndash 14 12 13 14
163 Low Grade (230ppm Co) 40 30 8 2 ndash 7 25 7 1 2 3 2 33
165 High Grade (2445ppm Co) 13 11 2 ndash ndash 7 5 1 ndash 1 5 2 5
166 High Grade (1970ppm Co) 35 26 8 ndash 1 27 6 ndash 2 9 5 5 16
153 114 30 5 3 80 54 11 8 32 27 24 70
75 20 3 2 52 35 7 5 21 18 16 46
Cobalt CRM Standards
Internal COB assay QAQC protocols cobalt performed well with 95 standard analyses falling within two standard deviations of the certified value and 75 within one SD No systematic out-of-specification trends were identified and there was no discernible tendency for a particular Co standard to preferentially assay either higher or lower than the certified Co concentration
Cobalt Blanks
A number of blanks were also submitted with the RC chip and diamond core samples mdash the OREAS160 CRM is essentially a low-sulphide blank with respect to cobalt (28ppm) and the results of assay of this standard are summarised in Table 1 In addition five quartz sand blanks were submitted bracketing very pyrite-rich intervals in diamond drill holes 17THD06 and 17THD07 Overall the quartz sand blanks returned a maximum of 69ppm Co 004 S and 065 Fe which are regarded as similar to background values and any contamination during sample preparation at the assay laboratory is likely to be immaterial to the final results
Based on the assay of standards and blanks with 95 of the Co results falling within two standard deviations of the certified value it is concluded that the assay results for Co are likely to be representative for the material submitted with no additional source of inaccuracy or bias identified
Sulphur CRM Standards
sulphur was reasonably well-performed with 87 of the total 153 standard analyses falling within two standard deviations of the certified value and 95 within 3SD
Iron CRM Standards
Iron analysis of standards showed poor accuracy with a tendency to assay low mdash 46 of the assays fall outside of 3 SD typically but not exclusively lower than the certified value
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 20
Criteria JORC Code Explanation Commentary
Verification of sampling and assaying
a The verification of significant intersections by either inde-pendent or alternative company personnel
a The use of twinned holes
a Documentation of primary data data entry procedures data verification data storage (physical and electronic) protocols
a Discuss any adjustment to assay data
a Historical drilling intersections were internally verified by personnel employed by previous explorers including CRAE Pty Limited Central Austin Pty Limited and Hunter Resources Broken Hill Prospecting has completed a systematic review of the related data
a The Thackaringa drilling database exists in electronic form as a Microsoft Access database Information related to individual drill holes is stored in digital files as extracted from historical reports (typically including location plan section logs photos surveys assays and petrology)
a Historical drilling data available in electronic form has been re-formatted and imported into the drilling database
a Quantitative historical drilling data including assays have been captured electronically during systematic data compilation and validation completed by Broken Hill Prospecting
a Samples returning assays below detection limits are assigned half detection limit values in the database
a All significant intersections are verified by the Companyrsquos Exploration Manager and independent geological consultant
Location of data points
a Accuracy and quality of surveys used to locate drill holes (collar and down-hole surveys) trenches mine workings and other locations used in Mineral Resource estimation
a Specification of the grid system used
a Quality and adequacy of topographic control
a Historical drill collars have been relocated and surveyed using a differential GPS (DGPS) In the instances where no collar could be located the position has been derived from georeferenced historical plans
a During systematic data validation completed in 2016 three drill holes at Big Hill were found to be incorrectly located One collar was located and surveyed by GPS and two were digitised from georeferenced historical plans (reported to the nearest metre) as the collars had been destroyed These corrections were captured in the Big Hill Mineral Resource estimate
a Down hole surveys using digital cameras were completed on all post 2000 drilling Down hole surveys for some earlier drilling were estimated from hole trace and section data where raw survey data was not reported
a All 2017 Thackaringa drill hole collars were located and surveyed with DGPS by an independent surveyor with reported accuracy of plusmn005m in horizontal and vertical measurement
a Downhole surveys using digital cameras were completed on all 2017 drill-holes
a All data is recorded in the GDA94 datum UTM Zone 54 (MGA54)
a 3D validation of drilling data has been completed by independent geological consultants to support detailed geological modelling in Microminetrade software
a The quality of topographic control is deemed adequate in consideration of the results presented in this release
Data spacing and distribution
a Data spacing for reporting of Exploration Results
a Whether the data spacing and distribution is sufficient to estab-lish the degree of geological and grade continuity appropriate for the Mineral Resource and Ore Reserve estimation procedure(s) and classifications applied
a Whether sample compositing has been applied
a The data density of existing drill holes at Thackaringa has been materially increased by the 2017 drilling program which was undertaken primarily to undertake infill drilling
a Detailed geological mapping supported by drill-hole data of sufficient spacing and distribution to establish a 3D geological model
a The level of geological and grade continuity is appropriate for the Mineral Resource estimation methodologies used and the classifications applied (being wholly Inferred Mineral Resources) Note that a recalculation of the Mineral Resource using 2017 drilling and assay data will commence in mid-2017
a No sample compositing has been applied to reported intersections
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 21
Criteria JORC Code Explanation Commentary
Orientation of data in relation to geological structure
a Whether the orientation of sampling achieves unbiased sampling of possible structures and the extent to which this is known considering the deposit type
a If the relationship between the drilling orientation and the orientation of key mineralised structures is considered to have introduced a sampling bias this should be assessed and reported if material
a The 2017 drill holes at the Thackaringa project were typically angled at -500 or -600 to the horizontal and drilled perpendicular to the mineralised trend with drilling orientations adjusted along strike to accommodate folded geological sequences
a Mineralisation at the Big Hill and Railway prospects is steeply dipping and consequently mineralised intersections will be greater than true width At Pyrite Hill mineralisation is gently dipping and mineralised intersections will be close to true width
a The drilling orientation is not considered to have introduced a sampling bias on assessment of the current geological interpretation
Sample security
a The measures taken to ensure sample security
a Sample security procedures are considered to be lsquoindustry standardrsquo for the respective periods
a Following recent drilling completed by BPL samples were trucked by an independent courier directly from Broken Hill to ALS Adelaide
a BPL consider that risks associated with sample security are limited given the nature of the targeted mineralisation
Audits or reviews
a The results of any audits or reviews of sampling techniques and data
a In late 2016 an independent validation of the Thackaringa drilling database was completed
a The data validation process consisted of systematic review of drilling data (collars assays and surveys) for identification of transcription errors
a Following review historical drill hole locations were also validated against georeferenced historical maps to confirm their location
a Three (3) drill holes at Big Hill were found to be incorrectly located One collar was located and surveyed by GPS and two were digitised from georeferenced historical plans (reported to the nearest metre) as the collars had been destroyed These corrections were captured in the Big Hill Mineral Resource estimate
a Total depths for all holes were checked against original reports
a Final 3D validation of drilling data has been completed by independent geological consultants to support detailed geological modelling in Microminetrade software
a Audits and reviews of QAQC results and procedures are further described in preceding sections of this table including Quality of assay data and laboratory tests Sub-sampling techniques and sample preparation and Logging
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Section 2 Reporting of Exploration Results(Criteria listed in the preceding section also apply to this section)
Criteria JORC Code Explanation Commentary
Mineral tenement and land tenure status
a Type reference namenumber location and ownership including agreements or material issues with third parties such as joint ventures partnerships overriding royalties native title interests historical sites wilderness or national park and environmental settings
a The security of the tenure held at the time of reporting along with any known impediments to obtaining a licence to operate in the area
a The Thackaringa Cobalt project is located approximately 25 kilometres west-southwest of Broken Hill and comprises four tenements with a total area of 63 km2
Tenement
Registered amp Beneficial Holder Minerals Grant Date Expiry Date
Annual Expenditure
Commit-ment
EL6622 Broken Hill Prospecting Limited (BPL)
Group 1 30082006 29082017 $47000
EL 8143 BPL Group 1 26072013 26072017 $14000
ML86 BPL Cobalt iron nickel platinum sulphur
05111975 04112017 $75000
ML87 BPL Cobalt iron nickel platinum sulphur
05111975 04112017 $75000
a The project tenure is subject to a Farm-In agreement between Cobalt Blue Holdings Limited (COB) and Broken Hill Prospecting Limited (BPL) The nature of this agreement is detailed in the COB Replacement Prospectus (as released 4 January 2017)
a The nearest residence (Thackaringa Station) is located approxi-mately three kilometres west of EL6622
a EL6622 is intersected by the Transcontinental Railway the Barrier Highway is located the north of the licence boundaries
a The majority of the project tenure is covered by Western Lands Lease which is considered to extinguish native title interest However Native Title Determination NC9732 (Barkandji Traditional Owners 8) is current over the area and may be relevant to Crown Land parcels (eg public roads) within the project area
a The project tenure is more than 90 kilometres from the nearest National Park and or Wilderness Area (Kinchega National Park) and approximately 20 kilometres south of the nearest Water Supply Reserve (Umberumberka Reservoir Water Supply Reserve)
a The Company is not aware of any impediments to obtaining a licence to operate in the area
Exploration done by other parties
a Acknowledgment and appraisal of exploration by other parties
a A detailed and complete record of all exploration activities undertaken prior to the BPL 2016 drilling program is appended to the JORC Table 1 which forms part of the Cobalt Blue Prospectus Document available on the COB website
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 23
Criteria JORC Code Explanation Commentary
Geology a Deposit type geological setting and style of mineralisation
Regional Geological Setting a The Thackaringa project is located in a deformed and metamor-
phosed Proterozoic supracrustal succession named the Willyama Supergroup which crops out as several inliers in western New South Wales including the Broken Hill Block (Willis et al 1982)
a Exploration by BPL Limited has been focused on the discovery of cobaltiferous pyrite deposits and Broken Hill type base-metal mineralisation both of which are known from historical exploration in the district
a The project area covers portions of the Broken Hill and Thackaringa group successions which host the majority of mineralisation in the region including the Broken Hill base-metal deposit The Sundown Group suite is also present The extensive sequence of quartz-albite-plagioclase rock that hosts the cobaltiferous pyrite mineralisation is interpreted as belonging to the Himalaya Formation which is stratigraphically at the top of the Thackaringa Group
Local Geological Setting a The oldest rocks in the region belong to the Curnamona Craton
which outcrops on the Broken Hill and Euriowie blocks a The overlying Proterozoic rocks have been broadly subdivided
into three major groupings of which the oldest groups are the highly deformed metasediments and igneous derived rocks of the Thackaringa and Broken Hill groups They comprise a major part of the Willyama Supergroup and host the giant Broken Hill massive Pb-Zn-Ag sulphide ore body EL6622 is within the Broken Hill block of the Curnamona Craton
Mineralisation Style a The Thackaringa Mineral deposits (Pyrite Hill Big Hill and Railway)
are characterised by large tonnage cobaltiferous-pyrite minerali-sation hosted within siliceous albitic gneisses and schists of the Himalaya Formation
a Cobalt mineralisation exists within stratabound pyritic horizons where cobalt is present within the pyrite lattice Mineralogical studies have indicated the majority of cobalt (~85) is found in solid solution with primary pyrite (Henley 1998)
a A strong correlation between pyrite content and cobalt grade is observed
a The regional geological setting indicates additional mineralisation targets including
a Stratiform Broken Hill Type (BHT) Copper-Lead-Zinc-Silver deposits
a Copper-rich BHT deposits a Stratiform to stratabound Copper-Cobalt-Gold deposits a Epigenetic Gold and Base metal deposits
Drill hole Information
a A summary of all information mat- erial to the understanding of the exploration results including a tab- ulation of the following information for all Material drill holes
a easting and northing of the drill hole collar
a elevation or RL (Reduced Level ndash elevation above sea level in metres) of the drill hole collar
a dip and azimuth of the hole
a down hole length and interception depth
a See drill holle summaries below
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 24
Drill hole summaries
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
17THD01 Pyrite Hill 1242 MGA54 518382 6449551 28906 -40 222 DDH1
17THD02 Pyrite Hill 1497 MGA54 518475 6449445 29054 -40 258 DDH1
17THD03 Pyrite Hill 785 MGA54 518370 6449190 30328 -40 2851 DDH1
17THD04 Big Hill 1198 MGA54 521078 6449589 27841 -45 1551 DDH1
17THD05 Big Hill 995 MGA54 521669 6449889 2785 -40 131 DDH1
17THD06 Railway 1655 MGA54 521970 6450705 2872 -45 128 DDH1
17THD07 Railway 2746 MGA54 522569 6451282 27067 -45 1565 DDH1
17THD08 Railway 1325 MGA54 522784 6451280 268881 -45 326 DDH1
17THD09 Railway 1205 MGA54 522905 6451511 278471 -40 1525 DDH1
17THD10 Railway 842 MGA54 522992 6451569 279779 -45 130 DDH1
17THD11 Railway 1115 MGA54 523109 6451682 280847 -40 1605 DDH1
17THD12 Railway 1265 MGA54 522796 6451419 272936 -40 14075 DDH1
17THD13 Railway 1055 MGA54 522836 6451456 276747 -40 1385 DDH1
17THD14 Pyrite Hill 99 MGA54 518375 6449089 29425 -60 285 DDH1
17THR001 Railway 156 MGA54 522615 6451277 267561 -60 120 RC5
17THR002 Railway 160 MGA54 522573 6451299 268511 -60 120 RC5
17THR003 Railway 96 MGA54 522124 6450868 27739 -60 130 RC5
17THR004 Railway 150 MGA54 522387 6451319 271453 -60 120 RC5
17THR005 Railway 72 MGA54 522024 6450783 282154 -60 120 RC5
17THR006 Railway 114 MGA54 522049 6450780 28401 -58 125 RC5
17THR007 Railway 180 MGA54 521965 6450699 286585 -59 125 RC5
17THR008 Railway 132 MGA54 521917 6450562 291682 -56 105 RC5
17THR009 Railway 120 MGA54 521906 6450496 292751 -58 105 RC5
17THR010 Railway 72 MGA54 521959 6450398 286445 -56 285 RC5
17THR011 Railway 126 MGA54 522302 6451169 276812 -56 120 RC5
17THR012 Railway 180 MGA54 522440 6451304 274931 -58 173 RC5
17THR013 Big Hill 102 MGA54 521750 6449942 28489 -60 1305 RC5
17THR014 Big Hill 104 MGA54 521628 6449796 277545 -53 130 RC5
17THR015 Big Hill 108 MGA54 521793 6449918 284847 -58 310 RC5
17THR016 Pyrite Hill 138 MGA54 518446 6449209 290391 -57 283 RC5
17THR017 Pyrite Hill 120 MGA54 518449 6449263 293147 -56 2815 RC5
17THR018 Pyrite Hill 78 MGA54 518027 6449806 289567 -60 222 RC5
17THR019 Pyrite Hill 72 MGA54 518105 6449754 287701 -55 222 RC5
17THR020 Pyrite Hill 66 MGA54 518166 6449695 288685 -60 222 RC5
17THR021 Pyrite Hill 78 MGA54 518183 6449717 286007 -60 222 RC5
17THR022 Pyrite Hill 156 MGA54 518510 6449306 28682 -55 281 RC5
17THR023 Pyrite Hill 150 MGA54 518506 6449377 289481 -57 2645 RC5
17THR024 Pyrite Hill 150 MGA54 518457 6449498 288137 -595 2285 RC5
17THR025 Pyrite Hill 114 MGA54 518311 6449609 287463 -60 222 RC5
17THR026 Pyrite Hill 114 MGA54 518268 6449681 284164 -60 222 RC5
17THR027 Pyrite Hill 72 MGA54 518243 6449646 287176 -60 222 RC5
17THR028 Railway 150 MGA54 522457 6451167 300659 -60 350 RC5
17THR029 Railway 162 MGA54 522482 6451084 295964 -60 175 RC5
17THR030 Railway 138 MGA54 522783 6451423 270814 -55 140 RC5
17THR031 Railway 120 MGA54 522945 6451566 27619 -55 145 RC5
17THR032 Railway 132 MGA54 522819 6451473 273712 -53 140 RC5
17THR033 Railway 120 MGA54 522501 6451315 26963 -60 175 RC5
17THR034 Railway 132 MGA54 522321 6451214 275947 -55 127 RC5
17THR035 Railway 156 MGA54 522259 6451120 275749 -552 130 RC5
17THR036 Railway 92 MGA54 522186 6450998 275339 -612 130 RC5
17THR037 Railway 126 MGA54 522148 6450941 274202 -55 126 RC5
17THR038 Railway 168 MGA54 521927 6450619 289555 -55 108 RC5
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 25
Historic down-hole information
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
67TH01 Pyrite Hill 3042 MGA94_54 518564805 644946003 280643 -55 2606 DDH1
70TH02 Pyrite Hill 1486 MGA94_54 51827242 644968054 28408 -61 2186 DDH1
70TH03 Pyrite Hill 1414 MGA94_54 51844985 644921188 28981 -62 2836 DDH1
70BH01 Big Hill 1027 MGA94_54 52085056 64493085 28456 -47 3186 DDH1
70BH02 Big Hill 1039 MGA94_54 52078612 64492644 2801 -50 3186 DDH1
80PYH13 Pyrite Hill 77 MGA94_54 5183582 64490377 29035 -50 2807 DDH1
80PYH14 Pyrite Hill 3003 MGA94_54 51866118 644928762 27796 -60 2807 DDH1
80PYH03 Pyrite Hill 35 MGA94_54 5182515 64495699 2994 -60 2207 PDDH2 2280BGH09 Big Hill 1005 MGA94_54 52065743 644929252 27280 -50 1447 DDH1
80PYH01 Pyrite Hill 2453 MGA94_54 5182462 64495657 3011 -60 2027 PDDH2 680PYH02 Pyrite Hill 513 MGA94_54 5182607 64495742 2976 -60 2207 PDDH2 335880PYH04 Pyrite Hill 55 MGA94_54 51836655 644923174 30834 -60 2957 PDDH2 38780PYH05 Pyrite Hill 936 MGA94_54 51822697 644967819 28518 -49 2227 PDDH2 1880PYH06 Pyrite Hill 855 MGA94_54 51816348 64497573 28373 -544 2227 PDDH2 1880PYH07 Pyrite Hill 945 MGA94_54 51808406 644981836 28516 -55 2227 PDDH2 1280PYH08 Pyrite Hill 110 MGA94_54 51800954 644988543 28614 -60 2227 PDDH2 880PYH09 Pyrite Hill 1005 MGA94_54 5179174 644993176 28655 -485 2227 PDDH2 880PYH10 Pyrite Hill 1453 MGA94_54 51839296 644956596 28553 -50 2227 PDDH2 25580PYH11 Pyrite Hill 1031 MGA94_54 51844096 644932952 29725 -50 2807 PDDH2 1880PYH12 Pyrite Hill 1095 MGA94_54 51840728 644913731 29263 -50 2807 PDDH2 4280BGH05 Big Hill 5486 MGA94_54 52095535 644953441 28893 -60 1637 RCDDH3 45598TC01 Railway 100 MGA94_54 52275006 645133973 26727 -60 1589 RC5
98TC02 Railway 100 MGA94_54 52239241 645138683 26678 -60 1409 RC5
98TC03 Big Hill 84 MGA94_54 52081645 644936939 31305 -60 1359 RC5
98TC04 Big Hill 13825 MGA94_54 52086005 644945085 30409 -60 1409 RC5
98TC05 Big Hill 70 MGA94_54 520728 644932807 28863 -50 1229 RC5
98TC06 Big Hill 108 MGA94_54 520715 6449343 28513 -60 1259 RC5
98TC07 Big Hill 120 MGA94_54 52078597 644938821 29922 -50 1339 RC5
98TC08 Big Hill 90 MGA94_54 52080195 644947781 29101 -60 1509 RC5
98TC09 Big Hill 114 MGA94_54 52082221 644946079 29625 -60 1339 RC5
98TC10 Big Hill 134 MGA94_54 521018 6449576 2815 -50 1729 RC5
98TC11 Railway 35 MGA94_54 5224112 645137396 26701 -60 1329 RC5
80BGH06 Big Hill 6804 MGA94_54 520880 6449472 299 -60 1707 RCDDH3 5880BGH08 Big Hill 797 MGA94_54 52076879 644939093 29629 -60 1267 RCDDH3 69980BGH07 Big Hill 23 MGA94_54 52113656 6449599 27411 -60 1777 RC5
93MGM01 Pyrite Hill 70 MGA94_54 51818544 644971377 28628 -60 2228 RDDH4 2493MGM02 Pyrite Hill 180 MGA94_54 51851545 644945467 28479 -60 2588 RDDH4 4811PHR01 Pyrite Hill 150 MGA94_54 51843547 644907276 28534 -60 27906 RC5
11PHR02 Pyrite Hill 198 MGA94_54 51849992 644915931 28379 -60 27906 RC5
11PHR03 Pyrite Hill 240 MGA94_54 5185603 644918961 28026 -60 27906 RC5
11PHR04 Pyrite Hill 186 MGA94_54 51852863 6449257 28403 -60 27906 RC5
11PHR05 Pyrite Hill 234 MGA94_54 51858425 644939762 28022 -60 25906 RC5
11PHR06 Pyrite Hill 180 MGA94_54 5184909 644952259 28402 -60 23406 RC5
11PHR07 Pyrite Hill 174 MGA94_54 51841347 64495929 28286 -60 21906 RC5
11PHR08 Pyrite Hill 180 MGA94_54 51834274 644965585 28288 -60 21806 RC5
11PSR01 Pyrite Hill 59 MGA94_54 51874273 6448864 26838 -60 25806 RC5
11PSR02 Pyrite Hill 132 MGA94_54 51871938 644896001 27041 -60 25506 RC5
11PSR03 Pyrite Hill 78 MGA94_54 51868699 644905535 27279 -60 25506 RC5
12BER01 Railway 157 MGA94_54 52166731 644989323 27769 -60 141 RC5
12BER02 Railway 132 MGA94_54 52121267 644969067 27353 -60 162 RC5
12BER03 Railway 151 MGA94_54 52187901 645043547 28859 -60 102 RC5
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 26
Historic down-hole information (continued)
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
12BER04 Railway 148 MGA94_54 52235392 645126835 27435 -60 131 RC5
12BER05 Railway 145 MGA94_54 52243947 645116784 29973 -60 124 RC5
12BER06 Railway 169 MGA94_54 52248137 645109135 29595 -60 118 RC5
12BER07 Railway 115 MGA94_54 52232372 645074875 27791 -60 144 RC5
12BER08 Railway 193 MGA94_54 52222079 64508118 27316 -60 129 RC5
12BER09 Railway 13975 MGA94_54 52210125 645088144 27591 -60 129 RC5
12BER10 Railway 151 MGA94_54 52195345 645071618 28449 -60 129 RC5
12BER11 Railway 193 MGA94_54 52273722 645137661 26583 -60 153 RC5
12BER12 Railway 111 MGA94_54 52290973 645151676 27736 -60 153 RC5
12BER13 Railway 205 MGA94_54 52288381 645155754 27103 -60 156 RC5
12BER14 Railway 151 MGA94_54 52312483 645163707 28836 -60 152 RC5
12BER15 Railway 109 MGA94_54 5233113 64518417 28395 -60 154 RC5
12BER16 Railway 115 MGA94_54 52299408 645159199 27595 -60 156 RC5
12BER17 Railway 1155 MGA94_54 5225165 645131494 2691 -60 153 RC5
12BER18 Railway 157 MGA94_54 52233275 645128131 27229 -60 129 RC5
12BER19 Railway 97 MGA94_54 52224055 645106715 27616 -60 135 RC5
12BER20 Railway 120 MGA94_54 52129169 644973363 27695 -60 165 RC5
13BED01 Railway 3492 MGA94_54 52248021 645109243 29601 -60 3007 DDH1
16DM01 Pyrite Hill 1616 MGA94_54 51841138 644959389 28269 -60 2155 DDH1
16DM02 Pyrite Hill 1834 MGA94_54 51852662 644926158 28418 -60 2850 DDH1
16DM03 Big Hill 1265 MGA94_54 5210371 644956749 28301 -60 1585 DDH1
16DM04 Big Hill 1054 MGA94_54 52081474 64494644 29618 -55 1285 DDH1
16DM05 Railway 2465 MGA94_54 5221037 645088187 27662 -60 1285 DDH1
16DM06 Railway 1604 MGA94_54 52291157 645151913 2785 -60 1525 DDH1
16DM07 Railway 2425 MGA94_54 52299526 645159826 27636 -60 1561 DDH1
16DM08 Railway 2585 MGA94_54 52235145 645127307 27385 -60 1309 DDH1
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 27
Down hole length and interception depth ndash 2017 holes
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THD01 34 123 89 982 94 87
including 35 41 6 1143 119 106
and 50 55 5 1311 131 115
and 81 122 41 1366 118 11
17THD02 47 134 87 911 88 92
including 48 77 29 1238 111 114
and 116 134 18 1199 110 111
17THD03 40 635 235 894 116 108
including 49 63 14 1076 143 124
17THD04 20 29 9 1033 86 872 96 24 703 88 81
17THD05 44 60 16 993 98 85
including 44 56 12 1094 109 94
71 76 5 840 64 6317THD06 39 85 46 1136 114 101
including 40 70 30 1227 122 104
and 76 85 9 1148 107 100
17THD07 15 128 113 879 81 88
including 47 55 8 1048 117 103
and 61 102 41 1452 125 123
142 152 10 704 6 102199 204 5 706 49 65
17THR001 27 63 36 1075 106 104
including 37 63 26 1280 119 115
75 84 9 755 91 139
17THR002 37 43 6 711 69 82
91 136 45 983 98 105
including 102 136 34 1190 117 118
17THR003 4 59 55 937 93 94
including 10 46 36 1212 116 110
17THR004 49 146 97 888 102 102
including 51 113 62 1051 114 113
17THR005 52 72 20 1053 128 126
including 53 63 10 1145 125 130
17THR006 14 74 60 754 86 87
including 17 44 27 1176 125 121
17THR007 5 22 17 837 0 125
including 12 19 7 1049 0 105
128 154 26 1034 114 115
including 128 146 18 1321 144 143
17THR008 37 78 41 1319 122 11217THR009 29 65 36 957 94 92including 34 60 26 1150 111 102
100 105 5 833 129 12717THR010 51 57 6 729 49 5317THR011 30 83 53 1116 12 109
including 31 62 31 1423 155 135
17THR012 50 117 67 748 75 86
including 59 67 8 1084 103 126
and 75 102 27 1120 110 113
172 177 5 725 64 64
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 28
Down hole length and interception depth ndash 2017 holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THR013 19 73 54 888 54 5
including 19 29 10 2576 88 77
17THR014 12 45 33 749 81 74
including 25 33 8 1148 113 94
17THR015 40 48 8 995 89 8117THR016 66 115 49 1096 129 134
including 66 81 15 1184 142 139
and 89 114 25 1183 134 141
17THR017 54 112 58 1383 132 128
including 56 85 29 2042 183 158
17THR018 47 63 16 1124 151 14117THR019 42 59 17 1032 107 114
17THR020 29 49 20 1067 116 115
including 29 36 7 1352 135 126
17THR021 44 64 20 1204 131 12717THR022 101 138 37 1152 107 1217THR023 91 137 46 1271 139 133
including 91 97 6 1953 187 166
and 114 125 11 2707 311 265
17THR027 29 54 25 1176 126 118
including 30 47 17 1382 141 125
Down hole length and interception depth ndash historic holes
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
11PHR02 74 114 40 875 108 116
11PHR03 150 162 12 750 83 96
11PHR03 163 190 27 732 106 119
11PHR03 206 227 21 988 117 13
11PHR04 124 172 48 1049 128 129
11PHR05 197 219 22 1138 107 133
11PHR06 104 135 31 854 83 115
11PHR06 155 171 16 1315 12 122
11PHR07 96 147 51 941 95 99
11PHR08 103 115 12 1417 139 148
11PHR08 126 144 18 1048 126 142
12BER01 115 139 24 768 72 74
12BER02 18 25 7 1062 103 93
12BER02 113 123 10 907 85 86
12BER04 41 90 49 1191 114 127
12BER04 121 126 5 1241 9 112
12BER05 33 39 6 1109 79 92
12BER05 65 76 11 721 63 66
12BER06 131 169 38 844 83 128
12BER07 38 43 5 704 10 101
12BER09 33 92 59 841 9 116
12BER11 31 62 31 738 84 126
12BER11 92 159 67 1061 10 131
12BER11 173 193 20 737 67 83
12BER12 27 81 54 1430 181 189
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 29
Down hole length and interception depth ndash historic holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
12BER13 21 42 21 761 74 91
12BER13 65 75 10 1882 204 216
12BER14 28 55 27 1013 125 129
12BER16 25 100 75 1008 106 107
12BER17 92 99 7 739 6 63
12BER18 117 157 40 1017 112 114
12BER19 34 56 22 1151 104 108
12BER19 68 75 7 780 61 6
12BER20 21 46 25 731 69 75
13BED01 266 2915 255 872 85 78
16DM01 96 147 51 851 91 86
16DM02 127 172 45 1118 138 136
16DM03 104 111 7 838 103 9
16DM04 91 99 8 887 91 84
16DM05 30 103 73 793 82 9
16DM05 199 211 12 830 251 221
16DM06 28 84 56 1280 162 167
16DM06 138 146 8 722 78 112
16DM07 35 60 25 1232 111 111
16DM07 71 104 33 1224 133 134
16DM08 76 100 24 1026 11 12
16DM08 165 177 12 921 122 126
17THD01 34 123 89 982 94 87
17THD02 47 134 87 911 88 92
17THD03 40 635 235 894 116 108
17THD04 20 29 9 1033 86 8
17THD04 72 96 24 703 88 81
17THD05 44 60 16 993 98 85
17THD05 71 76 5 840 64 63
17THD06 39 85 46 1136 114 101
17THD07 15 128 113 879 81 88
17THD07 142 152 10 704 6 102
17THD07 199 204 5 706 49 65
17THR001 27 63 36 1075 106 104
17THR001 75 84 9 755 91 139
17THR002 37 43 6 711 69 82
17THR002 91 136 45 983 98 105
17THR003 4 59 55 937 93 94
17THR004 49 146 97 888 102 102
17THR005 52 72 20 1053 128 126
17THR006 14 74 60 754 86 87
17THR007 5 22 17 837 0 125
17THR007 128 154 26 1034 114 115
17THR008 37 78 41 1319 122 112
17THR009 29 65 36 957 94 92
17THR009 100 105 5 833 129 127
17THR010 51 57 6 729 49 53
17THR011 30 83 53 1116 12 109
17THR012 50 117 67 748 75 86
17THR012 172 177 5 725 64 64
17THR013 19 73 54 888 54 5
17THR014 12 45 33 749 81 74
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 30
Down hole length and interception depth ndash historic holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THR015 40 48 8 995 89 81
17THR016 66 115 49 1096 129 134
17THR017 54 112 58 1383 132 128
17THR018 47 63 16 1124 151 141
17THR019 42 59 17 1032 32 114
17THR020 29 49 20 1067 116 115
17THR021 44 64 20 1204 131 127
17THR022 101 138 37 1152 107 12
17THR023 91 137 46 1271 139 133
17THR027 29 54 25 1176 126 118
67TH01 12344 20001 7657 979 0 0
70BH01 3962 5334 1372 3323 31 0
70BH01 6431 8443 2012 1203 95 0
70BH02 7406 8686 128 704 75 0
70TH02 78 841 61 1666 175 154
70TH02 871 1021 15 1661 8 72
70TH03 777 1295 518 1016 129 132
80BGH05 39 49 10 752 0 0
80BGH06 18 6804 5004 969 0 0
80BGH08 44 7815 3415 939 0 0
80PYH01 75 17 95 725 0 0
80PYH02 341 4825 1415 1121 0 0
80PYH03 23 35 12 711 0 0
80PYH04 3975 55 1525 735 0 0
80PYH05 367 65 283 1160 118 0
80PYH06 54 62 8 905 0 0
80PYH07 67 794 124 1113 125 0
80PYH10 4845 1374 8895 831 86 0
80PYH11 346 465 119 916 8 0
80PYH11 572 9105 3385 1239 106 0
80PYH12 302 365 63 791 102 0
80PYH12 8515 908 565 857 146 0
80PYH14 2518 2734 216 1252 131 0
93MGM02 85 160 75 941 85 0
98TC01 20 47 27 744 91 126
98TC01 48 71 23 917 119 164
98TC03 34 45 11 1480 55 6
98TC03 68 79 11 1095 43 42
98TC04 84 94 10 966 39 4
98TC04 107 133 26 771 77 82
98TC05 24 62 38 754 64 7
98TC06 66 72 6 727 104 111
98TC06 76 101 25 767 101 106
98TC07 35 46 11 1546 165 171
98TC07 61 82 21 728 91 94
98TC09 32 39 7 716 49 174
98TC09 82 107 25 732 6 67
98TC10 101 125 24 732 79 8
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 31
Criteria JORC Code Explanation Commentary
Data aggregation methods
a In reporting Exploration Results weighting averaging techniques maximum andor minimum grade truncations (eg cutting of high grades) and cut-off grades are usually Material and should be stated
a Where aggregate intercepts incorporate short lengths of high grade results and longer lengths of low grade results the procedure used for such aggregation should be stated and some typical examples of such aggregations should be shown in detail
a The assumptions used for any reporting of metal equivalent values should be clearly stated
Drilling a Drill hole intercept grades are typically reported as down-hole
length-weighted averages with any non-recovered sample within the reported intervals treated as no grade The cut-off used for selecting significant intersections is selected to reflect the overall tenor of mineralisation in most cases 500ppm cobalt
a No top cuts have been applied when calculating average grades for reported significant intersections
a No metal equivalent values are reported
Relationship between mineralis- ation widths and intercept lengths
a These relationships are particularly important in the reporting of Exploration Results
a If the geometry of the mineralisation with respect to the drillhole angle is known its nature should be reported
a If it is not known and only the down hole lengths are reported there should be a clear statement to this effect (eg lsquodown hole length true width not knownrsquo)
a Drill holes at the Thackaringa project are typically angled at 50deg or 60deg and drilled perpendicular to the mineralised trend with drilling orientations adjusted along strike to accommodate folded geological sequences
a Mineralisation at the Big Hill and Railway prospects is steeply dipping and consequently mineralised intersections will be greater than true width At Pyrite Hill mineralisation is gently dipping and mineralised intersections will be close to true width
a There is insufficient geological knowledge to accurately estimate true widths and as such all drill intersections are reported as down hole lengths
Diagrams a Appropriate maps and sections (with scales) and tabulations of intercepts should be included for any significant discovery being reported These should include but not be limited to a plan view of drill hole collar locations and appropriate sectional views
a Appropriate maps and sections are presented in the accompa-nying ASX release
Balanced reporting
a Where comprehensive reporting of all exploration results is not practicable representative reporting of both low and high grades andor widths should be practiced to avoid misleading reporting of Exploration Results
a Only mineralised drill hole intersections regarded as highly anomalous and of economic interest are reported The proportion of each hole represented by the reported intervals can be ascertained from the sum of the reported intervals divided by the total drill hole depth
a All assay results for drill holes included in the various Mineral Resource estimates have been considered and comprise results not necessarily regarded as anomalous
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 32
Criteria JORC Code Explanation Commentary
Other substantive exploration data
a Other exploration data if meaningful and material should be reported including (but not limited to) geological obser-vations geophysical survey results geochemical survey results bulk samples ndash size and method of treatment metallurgical test results bulk density groun d- water geotechnical and rock characteristics potential deleterious or contaminating substances
a No further exploration data is deemed material to the results presented in this release
Further work a The nature and scale of planned further work (eg tests for lateral extensions or depth extensions or large-scale step-out drilling)
a Diagrams clearly highlighting the areas of possible extensions including the main geological interpretations and future drilling areas provided this information is not commercially sensitive
a The nature and scale of planned further work will be determined following the completion of revised Mineral Resource estimation for the Thackaringa deposits scheduled for May 2017
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 20
Criteria JORC Code Explanation Commentary
Verification of sampling and assaying
a The verification of significant intersections by either inde-pendent or alternative company personnel
a The use of twinned holes
a Documentation of primary data data entry procedures data verification data storage (physical and electronic) protocols
a Discuss any adjustment to assay data
a Historical drilling intersections were internally verified by personnel employed by previous explorers including CRAE Pty Limited Central Austin Pty Limited and Hunter Resources Broken Hill Prospecting has completed a systematic review of the related data
a The Thackaringa drilling database exists in electronic form as a Microsoft Access database Information related to individual drill holes is stored in digital files as extracted from historical reports (typically including location plan section logs photos surveys assays and petrology)
a Historical drilling data available in electronic form has been re-formatted and imported into the drilling database
a Quantitative historical drilling data including assays have been captured electronically during systematic data compilation and validation completed by Broken Hill Prospecting
a Samples returning assays below detection limits are assigned half detection limit values in the database
a All significant intersections are verified by the Companyrsquos Exploration Manager and independent geological consultant
Location of data points
a Accuracy and quality of surveys used to locate drill holes (collar and down-hole surveys) trenches mine workings and other locations used in Mineral Resource estimation
a Specification of the grid system used
a Quality and adequacy of topographic control
a Historical drill collars have been relocated and surveyed using a differential GPS (DGPS) In the instances where no collar could be located the position has been derived from georeferenced historical plans
a During systematic data validation completed in 2016 three drill holes at Big Hill were found to be incorrectly located One collar was located and surveyed by GPS and two were digitised from georeferenced historical plans (reported to the nearest metre) as the collars had been destroyed These corrections were captured in the Big Hill Mineral Resource estimate
a Down hole surveys using digital cameras were completed on all post 2000 drilling Down hole surveys for some earlier drilling were estimated from hole trace and section data where raw survey data was not reported
a All 2017 Thackaringa drill hole collars were located and surveyed with DGPS by an independent surveyor with reported accuracy of plusmn005m in horizontal and vertical measurement
a Downhole surveys using digital cameras were completed on all 2017 drill-holes
a All data is recorded in the GDA94 datum UTM Zone 54 (MGA54)
a 3D validation of drilling data has been completed by independent geological consultants to support detailed geological modelling in Microminetrade software
a The quality of topographic control is deemed adequate in consideration of the results presented in this release
Data spacing and distribution
a Data spacing for reporting of Exploration Results
a Whether the data spacing and distribution is sufficient to estab-lish the degree of geological and grade continuity appropriate for the Mineral Resource and Ore Reserve estimation procedure(s) and classifications applied
a Whether sample compositing has been applied
a The data density of existing drill holes at Thackaringa has been materially increased by the 2017 drilling program which was undertaken primarily to undertake infill drilling
a Detailed geological mapping supported by drill-hole data of sufficient spacing and distribution to establish a 3D geological model
a The level of geological and grade continuity is appropriate for the Mineral Resource estimation methodologies used and the classifications applied (being wholly Inferred Mineral Resources) Note that a recalculation of the Mineral Resource using 2017 drilling and assay data will commence in mid-2017
a No sample compositing has been applied to reported intersections
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 21
Criteria JORC Code Explanation Commentary
Orientation of data in relation to geological structure
a Whether the orientation of sampling achieves unbiased sampling of possible structures and the extent to which this is known considering the deposit type
a If the relationship between the drilling orientation and the orientation of key mineralised structures is considered to have introduced a sampling bias this should be assessed and reported if material
a The 2017 drill holes at the Thackaringa project were typically angled at -500 or -600 to the horizontal and drilled perpendicular to the mineralised trend with drilling orientations adjusted along strike to accommodate folded geological sequences
a Mineralisation at the Big Hill and Railway prospects is steeply dipping and consequently mineralised intersections will be greater than true width At Pyrite Hill mineralisation is gently dipping and mineralised intersections will be close to true width
a The drilling orientation is not considered to have introduced a sampling bias on assessment of the current geological interpretation
Sample security
a The measures taken to ensure sample security
a Sample security procedures are considered to be lsquoindustry standardrsquo for the respective periods
a Following recent drilling completed by BPL samples were trucked by an independent courier directly from Broken Hill to ALS Adelaide
a BPL consider that risks associated with sample security are limited given the nature of the targeted mineralisation
Audits or reviews
a The results of any audits or reviews of sampling techniques and data
a In late 2016 an independent validation of the Thackaringa drilling database was completed
a The data validation process consisted of systematic review of drilling data (collars assays and surveys) for identification of transcription errors
a Following review historical drill hole locations were also validated against georeferenced historical maps to confirm their location
a Three (3) drill holes at Big Hill were found to be incorrectly located One collar was located and surveyed by GPS and two were digitised from georeferenced historical plans (reported to the nearest metre) as the collars had been destroyed These corrections were captured in the Big Hill Mineral Resource estimate
a Total depths for all holes were checked against original reports
a Final 3D validation of drilling data has been completed by independent geological consultants to support detailed geological modelling in Microminetrade software
a Audits and reviews of QAQC results and procedures are further described in preceding sections of this table including Quality of assay data and laboratory tests Sub-sampling techniques and sample preparation and Logging
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 22
Section 2 Reporting of Exploration Results(Criteria listed in the preceding section also apply to this section)
Criteria JORC Code Explanation Commentary
Mineral tenement and land tenure status
a Type reference namenumber location and ownership including agreements or material issues with third parties such as joint ventures partnerships overriding royalties native title interests historical sites wilderness or national park and environmental settings
a The security of the tenure held at the time of reporting along with any known impediments to obtaining a licence to operate in the area
a The Thackaringa Cobalt project is located approximately 25 kilometres west-southwest of Broken Hill and comprises four tenements with a total area of 63 km2
Tenement
Registered amp Beneficial Holder Minerals Grant Date Expiry Date
Annual Expenditure
Commit-ment
EL6622 Broken Hill Prospecting Limited (BPL)
Group 1 30082006 29082017 $47000
EL 8143 BPL Group 1 26072013 26072017 $14000
ML86 BPL Cobalt iron nickel platinum sulphur
05111975 04112017 $75000
ML87 BPL Cobalt iron nickel platinum sulphur
05111975 04112017 $75000
a The project tenure is subject to a Farm-In agreement between Cobalt Blue Holdings Limited (COB) and Broken Hill Prospecting Limited (BPL) The nature of this agreement is detailed in the COB Replacement Prospectus (as released 4 January 2017)
a The nearest residence (Thackaringa Station) is located approxi-mately three kilometres west of EL6622
a EL6622 is intersected by the Transcontinental Railway the Barrier Highway is located the north of the licence boundaries
a The majority of the project tenure is covered by Western Lands Lease which is considered to extinguish native title interest However Native Title Determination NC9732 (Barkandji Traditional Owners 8) is current over the area and may be relevant to Crown Land parcels (eg public roads) within the project area
a The project tenure is more than 90 kilometres from the nearest National Park and or Wilderness Area (Kinchega National Park) and approximately 20 kilometres south of the nearest Water Supply Reserve (Umberumberka Reservoir Water Supply Reserve)
a The Company is not aware of any impediments to obtaining a licence to operate in the area
Exploration done by other parties
a Acknowledgment and appraisal of exploration by other parties
a A detailed and complete record of all exploration activities undertaken prior to the BPL 2016 drilling program is appended to the JORC Table 1 which forms part of the Cobalt Blue Prospectus Document available on the COB website
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 23
Criteria JORC Code Explanation Commentary
Geology a Deposit type geological setting and style of mineralisation
Regional Geological Setting a The Thackaringa project is located in a deformed and metamor-
phosed Proterozoic supracrustal succession named the Willyama Supergroup which crops out as several inliers in western New South Wales including the Broken Hill Block (Willis et al 1982)
a Exploration by BPL Limited has been focused on the discovery of cobaltiferous pyrite deposits and Broken Hill type base-metal mineralisation both of which are known from historical exploration in the district
a The project area covers portions of the Broken Hill and Thackaringa group successions which host the majority of mineralisation in the region including the Broken Hill base-metal deposit The Sundown Group suite is also present The extensive sequence of quartz-albite-plagioclase rock that hosts the cobaltiferous pyrite mineralisation is interpreted as belonging to the Himalaya Formation which is stratigraphically at the top of the Thackaringa Group
Local Geological Setting a The oldest rocks in the region belong to the Curnamona Craton
which outcrops on the Broken Hill and Euriowie blocks a The overlying Proterozoic rocks have been broadly subdivided
into three major groupings of which the oldest groups are the highly deformed metasediments and igneous derived rocks of the Thackaringa and Broken Hill groups They comprise a major part of the Willyama Supergroup and host the giant Broken Hill massive Pb-Zn-Ag sulphide ore body EL6622 is within the Broken Hill block of the Curnamona Craton
Mineralisation Style a The Thackaringa Mineral deposits (Pyrite Hill Big Hill and Railway)
are characterised by large tonnage cobaltiferous-pyrite minerali-sation hosted within siliceous albitic gneisses and schists of the Himalaya Formation
a Cobalt mineralisation exists within stratabound pyritic horizons where cobalt is present within the pyrite lattice Mineralogical studies have indicated the majority of cobalt (~85) is found in solid solution with primary pyrite (Henley 1998)
a A strong correlation between pyrite content and cobalt grade is observed
a The regional geological setting indicates additional mineralisation targets including
a Stratiform Broken Hill Type (BHT) Copper-Lead-Zinc-Silver deposits
a Copper-rich BHT deposits a Stratiform to stratabound Copper-Cobalt-Gold deposits a Epigenetic Gold and Base metal deposits
Drill hole Information
a A summary of all information mat- erial to the understanding of the exploration results including a tab- ulation of the following information for all Material drill holes
a easting and northing of the drill hole collar
a elevation or RL (Reduced Level ndash elevation above sea level in metres) of the drill hole collar
a dip and azimuth of the hole
a down hole length and interception depth
a See drill holle summaries below
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 24
Drill hole summaries
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
17THD01 Pyrite Hill 1242 MGA54 518382 6449551 28906 -40 222 DDH1
17THD02 Pyrite Hill 1497 MGA54 518475 6449445 29054 -40 258 DDH1
17THD03 Pyrite Hill 785 MGA54 518370 6449190 30328 -40 2851 DDH1
17THD04 Big Hill 1198 MGA54 521078 6449589 27841 -45 1551 DDH1
17THD05 Big Hill 995 MGA54 521669 6449889 2785 -40 131 DDH1
17THD06 Railway 1655 MGA54 521970 6450705 2872 -45 128 DDH1
17THD07 Railway 2746 MGA54 522569 6451282 27067 -45 1565 DDH1
17THD08 Railway 1325 MGA54 522784 6451280 268881 -45 326 DDH1
17THD09 Railway 1205 MGA54 522905 6451511 278471 -40 1525 DDH1
17THD10 Railway 842 MGA54 522992 6451569 279779 -45 130 DDH1
17THD11 Railway 1115 MGA54 523109 6451682 280847 -40 1605 DDH1
17THD12 Railway 1265 MGA54 522796 6451419 272936 -40 14075 DDH1
17THD13 Railway 1055 MGA54 522836 6451456 276747 -40 1385 DDH1
17THD14 Pyrite Hill 99 MGA54 518375 6449089 29425 -60 285 DDH1
17THR001 Railway 156 MGA54 522615 6451277 267561 -60 120 RC5
17THR002 Railway 160 MGA54 522573 6451299 268511 -60 120 RC5
17THR003 Railway 96 MGA54 522124 6450868 27739 -60 130 RC5
17THR004 Railway 150 MGA54 522387 6451319 271453 -60 120 RC5
17THR005 Railway 72 MGA54 522024 6450783 282154 -60 120 RC5
17THR006 Railway 114 MGA54 522049 6450780 28401 -58 125 RC5
17THR007 Railway 180 MGA54 521965 6450699 286585 -59 125 RC5
17THR008 Railway 132 MGA54 521917 6450562 291682 -56 105 RC5
17THR009 Railway 120 MGA54 521906 6450496 292751 -58 105 RC5
17THR010 Railway 72 MGA54 521959 6450398 286445 -56 285 RC5
17THR011 Railway 126 MGA54 522302 6451169 276812 -56 120 RC5
17THR012 Railway 180 MGA54 522440 6451304 274931 -58 173 RC5
17THR013 Big Hill 102 MGA54 521750 6449942 28489 -60 1305 RC5
17THR014 Big Hill 104 MGA54 521628 6449796 277545 -53 130 RC5
17THR015 Big Hill 108 MGA54 521793 6449918 284847 -58 310 RC5
17THR016 Pyrite Hill 138 MGA54 518446 6449209 290391 -57 283 RC5
17THR017 Pyrite Hill 120 MGA54 518449 6449263 293147 -56 2815 RC5
17THR018 Pyrite Hill 78 MGA54 518027 6449806 289567 -60 222 RC5
17THR019 Pyrite Hill 72 MGA54 518105 6449754 287701 -55 222 RC5
17THR020 Pyrite Hill 66 MGA54 518166 6449695 288685 -60 222 RC5
17THR021 Pyrite Hill 78 MGA54 518183 6449717 286007 -60 222 RC5
17THR022 Pyrite Hill 156 MGA54 518510 6449306 28682 -55 281 RC5
17THR023 Pyrite Hill 150 MGA54 518506 6449377 289481 -57 2645 RC5
17THR024 Pyrite Hill 150 MGA54 518457 6449498 288137 -595 2285 RC5
17THR025 Pyrite Hill 114 MGA54 518311 6449609 287463 -60 222 RC5
17THR026 Pyrite Hill 114 MGA54 518268 6449681 284164 -60 222 RC5
17THR027 Pyrite Hill 72 MGA54 518243 6449646 287176 -60 222 RC5
17THR028 Railway 150 MGA54 522457 6451167 300659 -60 350 RC5
17THR029 Railway 162 MGA54 522482 6451084 295964 -60 175 RC5
17THR030 Railway 138 MGA54 522783 6451423 270814 -55 140 RC5
17THR031 Railway 120 MGA54 522945 6451566 27619 -55 145 RC5
17THR032 Railway 132 MGA54 522819 6451473 273712 -53 140 RC5
17THR033 Railway 120 MGA54 522501 6451315 26963 -60 175 RC5
17THR034 Railway 132 MGA54 522321 6451214 275947 -55 127 RC5
17THR035 Railway 156 MGA54 522259 6451120 275749 -552 130 RC5
17THR036 Railway 92 MGA54 522186 6450998 275339 -612 130 RC5
17THR037 Railway 126 MGA54 522148 6450941 274202 -55 126 RC5
17THR038 Railway 168 MGA54 521927 6450619 289555 -55 108 RC5
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 25
Historic down-hole information
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
67TH01 Pyrite Hill 3042 MGA94_54 518564805 644946003 280643 -55 2606 DDH1
70TH02 Pyrite Hill 1486 MGA94_54 51827242 644968054 28408 -61 2186 DDH1
70TH03 Pyrite Hill 1414 MGA94_54 51844985 644921188 28981 -62 2836 DDH1
70BH01 Big Hill 1027 MGA94_54 52085056 64493085 28456 -47 3186 DDH1
70BH02 Big Hill 1039 MGA94_54 52078612 64492644 2801 -50 3186 DDH1
80PYH13 Pyrite Hill 77 MGA94_54 5183582 64490377 29035 -50 2807 DDH1
80PYH14 Pyrite Hill 3003 MGA94_54 51866118 644928762 27796 -60 2807 DDH1
80PYH03 Pyrite Hill 35 MGA94_54 5182515 64495699 2994 -60 2207 PDDH2 2280BGH09 Big Hill 1005 MGA94_54 52065743 644929252 27280 -50 1447 DDH1
80PYH01 Pyrite Hill 2453 MGA94_54 5182462 64495657 3011 -60 2027 PDDH2 680PYH02 Pyrite Hill 513 MGA94_54 5182607 64495742 2976 -60 2207 PDDH2 335880PYH04 Pyrite Hill 55 MGA94_54 51836655 644923174 30834 -60 2957 PDDH2 38780PYH05 Pyrite Hill 936 MGA94_54 51822697 644967819 28518 -49 2227 PDDH2 1880PYH06 Pyrite Hill 855 MGA94_54 51816348 64497573 28373 -544 2227 PDDH2 1880PYH07 Pyrite Hill 945 MGA94_54 51808406 644981836 28516 -55 2227 PDDH2 1280PYH08 Pyrite Hill 110 MGA94_54 51800954 644988543 28614 -60 2227 PDDH2 880PYH09 Pyrite Hill 1005 MGA94_54 5179174 644993176 28655 -485 2227 PDDH2 880PYH10 Pyrite Hill 1453 MGA94_54 51839296 644956596 28553 -50 2227 PDDH2 25580PYH11 Pyrite Hill 1031 MGA94_54 51844096 644932952 29725 -50 2807 PDDH2 1880PYH12 Pyrite Hill 1095 MGA94_54 51840728 644913731 29263 -50 2807 PDDH2 4280BGH05 Big Hill 5486 MGA94_54 52095535 644953441 28893 -60 1637 RCDDH3 45598TC01 Railway 100 MGA94_54 52275006 645133973 26727 -60 1589 RC5
98TC02 Railway 100 MGA94_54 52239241 645138683 26678 -60 1409 RC5
98TC03 Big Hill 84 MGA94_54 52081645 644936939 31305 -60 1359 RC5
98TC04 Big Hill 13825 MGA94_54 52086005 644945085 30409 -60 1409 RC5
98TC05 Big Hill 70 MGA94_54 520728 644932807 28863 -50 1229 RC5
98TC06 Big Hill 108 MGA94_54 520715 6449343 28513 -60 1259 RC5
98TC07 Big Hill 120 MGA94_54 52078597 644938821 29922 -50 1339 RC5
98TC08 Big Hill 90 MGA94_54 52080195 644947781 29101 -60 1509 RC5
98TC09 Big Hill 114 MGA94_54 52082221 644946079 29625 -60 1339 RC5
98TC10 Big Hill 134 MGA94_54 521018 6449576 2815 -50 1729 RC5
98TC11 Railway 35 MGA94_54 5224112 645137396 26701 -60 1329 RC5
80BGH06 Big Hill 6804 MGA94_54 520880 6449472 299 -60 1707 RCDDH3 5880BGH08 Big Hill 797 MGA94_54 52076879 644939093 29629 -60 1267 RCDDH3 69980BGH07 Big Hill 23 MGA94_54 52113656 6449599 27411 -60 1777 RC5
93MGM01 Pyrite Hill 70 MGA94_54 51818544 644971377 28628 -60 2228 RDDH4 2493MGM02 Pyrite Hill 180 MGA94_54 51851545 644945467 28479 -60 2588 RDDH4 4811PHR01 Pyrite Hill 150 MGA94_54 51843547 644907276 28534 -60 27906 RC5
11PHR02 Pyrite Hill 198 MGA94_54 51849992 644915931 28379 -60 27906 RC5
11PHR03 Pyrite Hill 240 MGA94_54 5185603 644918961 28026 -60 27906 RC5
11PHR04 Pyrite Hill 186 MGA94_54 51852863 6449257 28403 -60 27906 RC5
11PHR05 Pyrite Hill 234 MGA94_54 51858425 644939762 28022 -60 25906 RC5
11PHR06 Pyrite Hill 180 MGA94_54 5184909 644952259 28402 -60 23406 RC5
11PHR07 Pyrite Hill 174 MGA94_54 51841347 64495929 28286 -60 21906 RC5
11PHR08 Pyrite Hill 180 MGA94_54 51834274 644965585 28288 -60 21806 RC5
11PSR01 Pyrite Hill 59 MGA94_54 51874273 6448864 26838 -60 25806 RC5
11PSR02 Pyrite Hill 132 MGA94_54 51871938 644896001 27041 -60 25506 RC5
11PSR03 Pyrite Hill 78 MGA94_54 51868699 644905535 27279 -60 25506 RC5
12BER01 Railway 157 MGA94_54 52166731 644989323 27769 -60 141 RC5
12BER02 Railway 132 MGA94_54 52121267 644969067 27353 -60 162 RC5
12BER03 Railway 151 MGA94_54 52187901 645043547 28859 -60 102 RC5
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 26
Historic down-hole information (continued)
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
12BER04 Railway 148 MGA94_54 52235392 645126835 27435 -60 131 RC5
12BER05 Railway 145 MGA94_54 52243947 645116784 29973 -60 124 RC5
12BER06 Railway 169 MGA94_54 52248137 645109135 29595 -60 118 RC5
12BER07 Railway 115 MGA94_54 52232372 645074875 27791 -60 144 RC5
12BER08 Railway 193 MGA94_54 52222079 64508118 27316 -60 129 RC5
12BER09 Railway 13975 MGA94_54 52210125 645088144 27591 -60 129 RC5
12BER10 Railway 151 MGA94_54 52195345 645071618 28449 -60 129 RC5
12BER11 Railway 193 MGA94_54 52273722 645137661 26583 -60 153 RC5
12BER12 Railway 111 MGA94_54 52290973 645151676 27736 -60 153 RC5
12BER13 Railway 205 MGA94_54 52288381 645155754 27103 -60 156 RC5
12BER14 Railway 151 MGA94_54 52312483 645163707 28836 -60 152 RC5
12BER15 Railway 109 MGA94_54 5233113 64518417 28395 -60 154 RC5
12BER16 Railway 115 MGA94_54 52299408 645159199 27595 -60 156 RC5
12BER17 Railway 1155 MGA94_54 5225165 645131494 2691 -60 153 RC5
12BER18 Railway 157 MGA94_54 52233275 645128131 27229 -60 129 RC5
12BER19 Railway 97 MGA94_54 52224055 645106715 27616 -60 135 RC5
12BER20 Railway 120 MGA94_54 52129169 644973363 27695 -60 165 RC5
13BED01 Railway 3492 MGA94_54 52248021 645109243 29601 -60 3007 DDH1
16DM01 Pyrite Hill 1616 MGA94_54 51841138 644959389 28269 -60 2155 DDH1
16DM02 Pyrite Hill 1834 MGA94_54 51852662 644926158 28418 -60 2850 DDH1
16DM03 Big Hill 1265 MGA94_54 5210371 644956749 28301 -60 1585 DDH1
16DM04 Big Hill 1054 MGA94_54 52081474 64494644 29618 -55 1285 DDH1
16DM05 Railway 2465 MGA94_54 5221037 645088187 27662 -60 1285 DDH1
16DM06 Railway 1604 MGA94_54 52291157 645151913 2785 -60 1525 DDH1
16DM07 Railway 2425 MGA94_54 52299526 645159826 27636 -60 1561 DDH1
16DM08 Railway 2585 MGA94_54 52235145 645127307 27385 -60 1309 DDH1
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 27
Down hole length and interception depth ndash 2017 holes
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THD01 34 123 89 982 94 87
including 35 41 6 1143 119 106
and 50 55 5 1311 131 115
and 81 122 41 1366 118 11
17THD02 47 134 87 911 88 92
including 48 77 29 1238 111 114
and 116 134 18 1199 110 111
17THD03 40 635 235 894 116 108
including 49 63 14 1076 143 124
17THD04 20 29 9 1033 86 872 96 24 703 88 81
17THD05 44 60 16 993 98 85
including 44 56 12 1094 109 94
71 76 5 840 64 6317THD06 39 85 46 1136 114 101
including 40 70 30 1227 122 104
and 76 85 9 1148 107 100
17THD07 15 128 113 879 81 88
including 47 55 8 1048 117 103
and 61 102 41 1452 125 123
142 152 10 704 6 102199 204 5 706 49 65
17THR001 27 63 36 1075 106 104
including 37 63 26 1280 119 115
75 84 9 755 91 139
17THR002 37 43 6 711 69 82
91 136 45 983 98 105
including 102 136 34 1190 117 118
17THR003 4 59 55 937 93 94
including 10 46 36 1212 116 110
17THR004 49 146 97 888 102 102
including 51 113 62 1051 114 113
17THR005 52 72 20 1053 128 126
including 53 63 10 1145 125 130
17THR006 14 74 60 754 86 87
including 17 44 27 1176 125 121
17THR007 5 22 17 837 0 125
including 12 19 7 1049 0 105
128 154 26 1034 114 115
including 128 146 18 1321 144 143
17THR008 37 78 41 1319 122 11217THR009 29 65 36 957 94 92including 34 60 26 1150 111 102
100 105 5 833 129 12717THR010 51 57 6 729 49 5317THR011 30 83 53 1116 12 109
including 31 62 31 1423 155 135
17THR012 50 117 67 748 75 86
including 59 67 8 1084 103 126
and 75 102 27 1120 110 113
172 177 5 725 64 64
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 28
Down hole length and interception depth ndash 2017 holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THR013 19 73 54 888 54 5
including 19 29 10 2576 88 77
17THR014 12 45 33 749 81 74
including 25 33 8 1148 113 94
17THR015 40 48 8 995 89 8117THR016 66 115 49 1096 129 134
including 66 81 15 1184 142 139
and 89 114 25 1183 134 141
17THR017 54 112 58 1383 132 128
including 56 85 29 2042 183 158
17THR018 47 63 16 1124 151 14117THR019 42 59 17 1032 107 114
17THR020 29 49 20 1067 116 115
including 29 36 7 1352 135 126
17THR021 44 64 20 1204 131 12717THR022 101 138 37 1152 107 1217THR023 91 137 46 1271 139 133
including 91 97 6 1953 187 166
and 114 125 11 2707 311 265
17THR027 29 54 25 1176 126 118
including 30 47 17 1382 141 125
Down hole length and interception depth ndash historic holes
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
11PHR02 74 114 40 875 108 116
11PHR03 150 162 12 750 83 96
11PHR03 163 190 27 732 106 119
11PHR03 206 227 21 988 117 13
11PHR04 124 172 48 1049 128 129
11PHR05 197 219 22 1138 107 133
11PHR06 104 135 31 854 83 115
11PHR06 155 171 16 1315 12 122
11PHR07 96 147 51 941 95 99
11PHR08 103 115 12 1417 139 148
11PHR08 126 144 18 1048 126 142
12BER01 115 139 24 768 72 74
12BER02 18 25 7 1062 103 93
12BER02 113 123 10 907 85 86
12BER04 41 90 49 1191 114 127
12BER04 121 126 5 1241 9 112
12BER05 33 39 6 1109 79 92
12BER05 65 76 11 721 63 66
12BER06 131 169 38 844 83 128
12BER07 38 43 5 704 10 101
12BER09 33 92 59 841 9 116
12BER11 31 62 31 738 84 126
12BER11 92 159 67 1061 10 131
12BER11 173 193 20 737 67 83
12BER12 27 81 54 1430 181 189
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 29
Down hole length and interception depth ndash historic holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
12BER13 21 42 21 761 74 91
12BER13 65 75 10 1882 204 216
12BER14 28 55 27 1013 125 129
12BER16 25 100 75 1008 106 107
12BER17 92 99 7 739 6 63
12BER18 117 157 40 1017 112 114
12BER19 34 56 22 1151 104 108
12BER19 68 75 7 780 61 6
12BER20 21 46 25 731 69 75
13BED01 266 2915 255 872 85 78
16DM01 96 147 51 851 91 86
16DM02 127 172 45 1118 138 136
16DM03 104 111 7 838 103 9
16DM04 91 99 8 887 91 84
16DM05 30 103 73 793 82 9
16DM05 199 211 12 830 251 221
16DM06 28 84 56 1280 162 167
16DM06 138 146 8 722 78 112
16DM07 35 60 25 1232 111 111
16DM07 71 104 33 1224 133 134
16DM08 76 100 24 1026 11 12
16DM08 165 177 12 921 122 126
17THD01 34 123 89 982 94 87
17THD02 47 134 87 911 88 92
17THD03 40 635 235 894 116 108
17THD04 20 29 9 1033 86 8
17THD04 72 96 24 703 88 81
17THD05 44 60 16 993 98 85
17THD05 71 76 5 840 64 63
17THD06 39 85 46 1136 114 101
17THD07 15 128 113 879 81 88
17THD07 142 152 10 704 6 102
17THD07 199 204 5 706 49 65
17THR001 27 63 36 1075 106 104
17THR001 75 84 9 755 91 139
17THR002 37 43 6 711 69 82
17THR002 91 136 45 983 98 105
17THR003 4 59 55 937 93 94
17THR004 49 146 97 888 102 102
17THR005 52 72 20 1053 128 126
17THR006 14 74 60 754 86 87
17THR007 5 22 17 837 0 125
17THR007 128 154 26 1034 114 115
17THR008 37 78 41 1319 122 112
17THR009 29 65 36 957 94 92
17THR009 100 105 5 833 129 127
17THR010 51 57 6 729 49 53
17THR011 30 83 53 1116 12 109
17THR012 50 117 67 748 75 86
17THR012 172 177 5 725 64 64
17THR013 19 73 54 888 54 5
17THR014 12 45 33 749 81 74
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 30
Down hole length and interception depth ndash historic holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THR015 40 48 8 995 89 81
17THR016 66 115 49 1096 129 134
17THR017 54 112 58 1383 132 128
17THR018 47 63 16 1124 151 141
17THR019 42 59 17 1032 32 114
17THR020 29 49 20 1067 116 115
17THR021 44 64 20 1204 131 127
17THR022 101 138 37 1152 107 12
17THR023 91 137 46 1271 139 133
17THR027 29 54 25 1176 126 118
67TH01 12344 20001 7657 979 0 0
70BH01 3962 5334 1372 3323 31 0
70BH01 6431 8443 2012 1203 95 0
70BH02 7406 8686 128 704 75 0
70TH02 78 841 61 1666 175 154
70TH02 871 1021 15 1661 8 72
70TH03 777 1295 518 1016 129 132
80BGH05 39 49 10 752 0 0
80BGH06 18 6804 5004 969 0 0
80BGH08 44 7815 3415 939 0 0
80PYH01 75 17 95 725 0 0
80PYH02 341 4825 1415 1121 0 0
80PYH03 23 35 12 711 0 0
80PYH04 3975 55 1525 735 0 0
80PYH05 367 65 283 1160 118 0
80PYH06 54 62 8 905 0 0
80PYH07 67 794 124 1113 125 0
80PYH10 4845 1374 8895 831 86 0
80PYH11 346 465 119 916 8 0
80PYH11 572 9105 3385 1239 106 0
80PYH12 302 365 63 791 102 0
80PYH12 8515 908 565 857 146 0
80PYH14 2518 2734 216 1252 131 0
93MGM02 85 160 75 941 85 0
98TC01 20 47 27 744 91 126
98TC01 48 71 23 917 119 164
98TC03 34 45 11 1480 55 6
98TC03 68 79 11 1095 43 42
98TC04 84 94 10 966 39 4
98TC04 107 133 26 771 77 82
98TC05 24 62 38 754 64 7
98TC06 66 72 6 727 104 111
98TC06 76 101 25 767 101 106
98TC07 35 46 11 1546 165 171
98TC07 61 82 21 728 91 94
98TC09 32 39 7 716 49 174
98TC09 82 107 25 732 6 67
98TC10 101 125 24 732 79 8
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 31
Criteria JORC Code Explanation Commentary
Data aggregation methods
a In reporting Exploration Results weighting averaging techniques maximum andor minimum grade truncations (eg cutting of high grades) and cut-off grades are usually Material and should be stated
a Where aggregate intercepts incorporate short lengths of high grade results and longer lengths of low grade results the procedure used for such aggregation should be stated and some typical examples of such aggregations should be shown in detail
a The assumptions used for any reporting of metal equivalent values should be clearly stated
Drilling a Drill hole intercept grades are typically reported as down-hole
length-weighted averages with any non-recovered sample within the reported intervals treated as no grade The cut-off used for selecting significant intersections is selected to reflect the overall tenor of mineralisation in most cases 500ppm cobalt
a No top cuts have been applied when calculating average grades for reported significant intersections
a No metal equivalent values are reported
Relationship between mineralis- ation widths and intercept lengths
a These relationships are particularly important in the reporting of Exploration Results
a If the geometry of the mineralisation with respect to the drillhole angle is known its nature should be reported
a If it is not known and only the down hole lengths are reported there should be a clear statement to this effect (eg lsquodown hole length true width not knownrsquo)
a Drill holes at the Thackaringa project are typically angled at 50deg or 60deg and drilled perpendicular to the mineralised trend with drilling orientations adjusted along strike to accommodate folded geological sequences
a Mineralisation at the Big Hill and Railway prospects is steeply dipping and consequently mineralised intersections will be greater than true width At Pyrite Hill mineralisation is gently dipping and mineralised intersections will be close to true width
a There is insufficient geological knowledge to accurately estimate true widths and as such all drill intersections are reported as down hole lengths
Diagrams a Appropriate maps and sections (with scales) and tabulations of intercepts should be included for any significant discovery being reported These should include but not be limited to a plan view of drill hole collar locations and appropriate sectional views
a Appropriate maps and sections are presented in the accompa-nying ASX release
Balanced reporting
a Where comprehensive reporting of all exploration results is not practicable representative reporting of both low and high grades andor widths should be practiced to avoid misleading reporting of Exploration Results
a Only mineralised drill hole intersections regarded as highly anomalous and of economic interest are reported The proportion of each hole represented by the reported intervals can be ascertained from the sum of the reported intervals divided by the total drill hole depth
a All assay results for drill holes included in the various Mineral Resource estimates have been considered and comprise results not necessarily regarded as anomalous
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 32
Criteria JORC Code Explanation Commentary
Other substantive exploration data
a Other exploration data if meaningful and material should be reported including (but not limited to) geological obser-vations geophysical survey results geochemical survey results bulk samples ndash size and method of treatment metallurgical test results bulk density groun d- water geotechnical and rock characteristics potential deleterious or contaminating substances
a No further exploration data is deemed material to the results presented in this release
Further work a The nature and scale of planned further work (eg tests for lateral extensions or depth extensions or large-scale step-out drilling)
a Diagrams clearly highlighting the areas of possible extensions including the main geological interpretations and future drilling areas provided this information is not commercially sensitive
a The nature and scale of planned further work will be determined following the completion of revised Mineral Resource estimation for the Thackaringa deposits scheduled for May 2017
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 21
Criteria JORC Code Explanation Commentary
Orientation of data in relation to geological structure
a Whether the orientation of sampling achieves unbiased sampling of possible structures and the extent to which this is known considering the deposit type
a If the relationship between the drilling orientation and the orientation of key mineralised structures is considered to have introduced a sampling bias this should be assessed and reported if material
a The 2017 drill holes at the Thackaringa project were typically angled at -500 or -600 to the horizontal and drilled perpendicular to the mineralised trend with drilling orientations adjusted along strike to accommodate folded geological sequences
a Mineralisation at the Big Hill and Railway prospects is steeply dipping and consequently mineralised intersections will be greater than true width At Pyrite Hill mineralisation is gently dipping and mineralised intersections will be close to true width
a The drilling orientation is not considered to have introduced a sampling bias on assessment of the current geological interpretation
Sample security
a The measures taken to ensure sample security
a Sample security procedures are considered to be lsquoindustry standardrsquo for the respective periods
a Following recent drilling completed by BPL samples were trucked by an independent courier directly from Broken Hill to ALS Adelaide
a BPL consider that risks associated with sample security are limited given the nature of the targeted mineralisation
Audits or reviews
a The results of any audits or reviews of sampling techniques and data
a In late 2016 an independent validation of the Thackaringa drilling database was completed
a The data validation process consisted of systematic review of drilling data (collars assays and surveys) for identification of transcription errors
a Following review historical drill hole locations were also validated against georeferenced historical maps to confirm their location
a Three (3) drill holes at Big Hill were found to be incorrectly located One collar was located and surveyed by GPS and two were digitised from georeferenced historical plans (reported to the nearest metre) as the collars had been destroyed These corrections were captured in the Big Hill Mineral Resource estimate
a Total depths for all holes were checked against original reports
a Final 3D validation of drilling data has been completed by independent geological consultants to support detailed geological modelling in Microminetrade software
a Audits and reviews of QAQC results and procedures are further described in preceding sections of this table including Quality of assay data and laboratory tests Sub-sampling techniques and sample preparation and Logging
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 22
Section 2 Reporting of Exploration Results(Criteria listed in the preceding section also apply to this section)
Criteria JORC Code Explanation Commentary
Mineral tenement and land tenure status
a Type reference namenumber location and ownership including agreements or material issues with third parties such as joint ventures partnerships overriding royalties native title interests historical sites wilderness or national park and environmental settings
a The security of the tenure held at the time of reporting along with any known impediments to obtaining a licence to operate in the area
a The Thackaringa Cobalt project is located approximately 25 kilometres west-southwest of Broken Hill and comprises four tenements with a total area of 63 km2
Tenement
Registered amp Beneficial Holder Minerals Grant Date Expiry Date
Annual Expenditure
Commit-ment
EL6622 Broken Hill Prospecting Limited (BPL)
Group 1 30082006 29082017 $47000
EL 8143 BPL Group 1 26072013 26072017 $14000
ML86 BPL Cobalt iron nickel platinum sulphur
05111975 04112017 $75000
ML87 BPL Cobalt iron nickel platinum sulphur
05111975 04112017 $75000
a The project tenure is subject to a Farm-In agreement between Cobalt Blue Holdings Limited (COB) and Broken Hill Prospecting Limited (BPL) The nature of this agreement is detailed in the COB Replacement Prospectus (as released 4 January 2017)
a The nearest residence (Thackaringa Station) is located approxi-mately three kilometres west of EL6622
a EL6622 is intersected by the Transcontinental Railway the Barrier Highway is located the north of the licence boundaries
a The majority of the project tenure is covered by Western Lands Lease which is considered to extinguish native title interest However Native Title Determination NC9732 (Barkandji Traditional Owners 8) is current over the area and may be relevant to Crown Land parcels (eg public roads) within the project area
a The project tenure is more than 90 kilometres from the nearest National Park and or Wilderness Area (Kinchega National Park) and approximately 20 kilometres south of the nearest Water Supply Reserve (Umberumberka Reservoir Water Supply Reserve)
a The Company is not aware of any impediments to obtaining a licence to operate in the area
Exploration done by other parties
a Acknowledgment and appraisal of exploration by other parties
a A detailed and complete record of all exploration activities undertaken prior to the BPL 2016 drilling program is appended to the JORC Table 1 which forms part of the Cobalt Blue Prospectus Document available on the COB website
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 23
Criteria JORC Code Explanation Commentary
Geology a Deposit type geological setting and style of mineralisation
Regional Geological Setting a The Thackaringa project is located in a deformed and metamor-
phosed Proterozoic supracrustal succession named the Willyama Supergroup which crops out as several inliers in western New South Wales including the Broken Hill Block (Willis et al 1982)
a Exploration by BPL Limited has been focused on the discovery of cobaltiferous pyrite deposits and Broken Hill type base-metal mineralisation both of which are known from historical exploration in the district
a The project area covers portions of the Broken Hill and Thackaringa group successions which host the majority of mineralisation in the region including the Broken Hill base-metal deposit The Sundown Group suite is also present The extensive sequence of quartz-albite-plagioclase rock that hosts the cobaltiferous pyrite mineralisation is interpreted as belonging to the Himalaya Formation which is stratigraphically at the top of the Thackaringa Group
Local Geological Setting a The oldest rocks in the region belong to the Curnamona Craton
which outcrops on the Broken Hill and Euriowie blocks a The overlying Proterozoic rocks have been broadly subdivided
into three major groupings of which the oldest groups are the highly deformed metasediments and igneous derived rocks of the Thackaringa and Broken Hill groups They comprise a major part of the Willyama Supergroup and host the giant Broken Hill massive Pb-Zn-Ag sulphide ore body EL6622 is within the Broken Hill block of the Curnamona Craton
Mineralisation Style a The Thackaringa Mineral deposits (Pyrite Hill Big Hill and Railway)
are characterised by large tonnage cobaltiferous-pyrite minerali-sation hosted within siliceous albitic gneisses and schists of the Himalaya Formation
a Cobalt mineralisation exists within stratabound pyritic horizons where cobalt is present within the pyrite lattice Mineralogical studies have indicated the majority of cobalt (~85) is found in solid solution with primary pyrite (Henley 1998)
a A strong correlation between pyrite content and cobalt grade is observed
a The regional geological setting indicates additional mineralisation targets including
a Stratiform Broken Hill Type (BHT) Copper-Lead-Zinc-Silver deposits
a Copper-rich BHT deposits a Stratiform to stratabound Copper-Cobalt-Gold deposits a Epigenetic Gold and Base metal deposits
Drill hole Information
a A summary of all information mat- erial to the understanding of the exploration results including a tab- ulation of the following information for all Material drill holes
a easting and northing of the drill hole collar
a elevation or RL (Reduced Level ndash elevation above sea level in metres) of the drill hole collar
a dip and azimuth of the hole
a down hole length and interception depth
a See drill holle summaries below
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 24
Drill hole summaries
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
17THD01 Pyrite Hill 1242 MGA54 518382 6449551 28906 -40 222 DDH1
17THD02 Pyrite Hill 1497 MGA54 518475 6449445 29054 -40 258 DDH1
17THD03 Pyrite Hill 785 MGA54 518370 6449190 30328 -40 2851 DDH1
17THD04 Big Hill 1198 MGA54 521078 6449589 27841 -45 1551 DDH1
17THD05 Big Hill 995 MGA54 521669 6449889 2785 -40 131 DDH1
17THD06 Railway 1655 MGA54 521970 6450705 2872 -45 128 DDH1
17THD07 Railway 2746 MGA54 522569 6451282 27067 -45 1565 DDH1
17THD08 Railway 1325 MGA54 522784 6451280 268881 -45 326 DDH1
17THD09 Railway 1205 MGA54 522905 6451511 278471 -40 1525 DDH1
17THD10 Railway 842 MGA54 522992 6451569 279779 -45 130 DDH1
17THD11 Railway 1115 MGA54 523109 6451682 280847 -40 1605 DDH1
17THD12 Railway 1265 MGA54 522796 6451419 272936 -40 14075 DDH1
17THD13 Railway 1055 MGA54 522836 6451456 276747 -40 1385 DDH1
17THD14 Pyrite Hill 99 MGA54 518375 6449089 29425 -60 285 DDH1
17THR001 Railway 156 MGA54 522615 6451277 267561 -60 120 RC5
17THR002 Railway 160 MGA54 522573 6451299 268511 -60 120 RC5
17THR003 Railway 96 MGA54 522124 6450868 27739 -60 130 RC5
17THR004 Railway 150 MGA54 522387 6451319 271453 -60 120 RC5
17THR005 Railway 72 MGA54 522024 6450783 282154 -60 120 RC5
17THR006 Railway 114 MGA54 522049 6450780 28401 -58 125 RC5
17THR007 Railway 180 MGA54 521965 6450699 286585 -59 125 RC5
17THR008 Railway 132 MGA54 521917 6450562 291682 -56 105 RC5
17THR009 Railway 120 MGA54 521906 6450496 292751 -58 105 RC5
17THR010 Railway 72 MGA54 521959 6450398 286445 -56 285 RC5
17THR011 Railway 126 MGA54 522302 6451169 276812 -56 120 RC5
17THR012 Railway 180 MGA54 522440 6451304 274931 -58 173 RC5
17THR013 Big Hill 102 MGA54 521750 6449942 28489 -60 1305 RC5
17THR014 Big Hill 104 MGA54 521628 6449796 277545 -53 130 RC5
17THR015 Big Hill 108 MGA54 521793 6449918 284847 -58 310 RC5
17THR016 Pyrite Hill 138 MGA54 518446 6449209 290391 -57 283 RC5
17THR017 Pyrite Hill 120 MGA54 518449 6449263 293147 -56 2815 RC5
17THR018 Pyrite Hill 78 MGA54 518027 6449806 289567 -60 222 RC5
17THR019 Pyrite Hill 72 MGA54 518105 6449754 287701 -55 222 RC5
17THR020 Pyrite Hill 66 MGA54 518166 6449695 288685 -60 222 RC5
17THR021 Pyrite Hill 78 MGA54 518183 6449717 286007 -60 222 RC5
17THR022 Pyrite Hill 156 MGA54 518510 6449306 28682 -55 281 RC5
17THR023 Pyrite Hill 150 MGA54 518506 6449377 289481 -57 2645 RC5
17THR024 Pyrite Hill 150 MGA54 518457 6449498 288137 -595 2285 RC5
17THR025 Pyrite Hill 114 MGA54 518311 6449609 287463 -60 222 RC5
17THR026 Pyrite Hill 114 MGA54 518268 6449681 284164 -60 222 RC5
17THR027 Pyrite Hill 72 MGA54 518243 6449646 287176 -60 222 RC5
17THR028 Railway 150 MGA54 522457 6451167 300659 -60 350 RC5
17THR029 Railway 162 MGA54 522482 6451084 295964 -60 175 RC5
17THR030 Railway 138 MGA54 522783 6451423 270814 -55 140 RC5
17THR031 Railway 120 MGA54 522945 6451566 27619 -55 145 RC5
17THR032 Railway 132 MGA54 522819 6451473 273712 -53 140 RC5
17THR033 Railway 120 MGA54 522501 6451315 26963 -60 175 RC5
17THR034 Railway 132 MGA54 522321 6451214 275947 -55 127 RC5
17THR035 Railway 156 MGA54 522259 6451120 275749 -552 130 RC5
17THR036 Railway 92 MGA54 522186 6450998 275339 -612 130 RC5
17THR037 Railway 126 MGA54 522148 6450941 274202 -55 126 RC5
17THR038 Railway 168 MGA54 521927 6450619 289555 -55 108 RC5
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 25
Historic down-hole information
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
67TH01 Pyrite Hill 3042 MGA94_54 518564805 644946003 280643 -55 2606 DDH1
70TH02 Pyrite Hill 1486 MGA94_54 51827242 644968054 28408 -61 2186 DDH1
70TH03 Pyrite Hill 1414 MGA94_54 51844985 644921188 28981 -62 2836 DDH1
70BH01 Big Hill 1027 MGA94_54 52085056 64493085 28456 -47 3186 DDH1
70BH02 Big Hill 1039 MGA94_54 52078612 64492644 2801 -50 3186 DDH1
80PYH13 Pyrite Hill 77 MGA94_54 5183582 64490377 29035 -50 2807 DDH1
80PYH14 Pyrite Hill 3003 MGA94_54 51866118 644928762 27796 -60 2807 DDH1
80PYH03 Pyrite Hill 35 MGA94_54 5182515 64495699 2994 -60 2207 PDDH2 2280BGH09 Big Hill 1005 MGA94_54 52065743 644929252 27280 -50 1447 DDH1
80PYH01 Pyrite Hill 2453 MGA94_54 5182462 64495657 3011 -60 2027 PDDH2 680PYH02 Pyrite Hill 513 MGA94_54 5182607 64495742 2976 -60 2207 PDDH2 335880PYH04 Pyrite Hill 55 MGA94_54 51836655 644923174 30834 -60 2957 PDDH2 38780PYH05 Pyrite Hill 936 MGA94_54 51822697 644967819 28518 -49 2227 PDDH2 1880PYH06 Pyrite Hill 855 MGA94_54 51816348 64497573 28373 -544 2227 PDDH2 1880PYH07 Pyrite Hill 945 MGA94_54 51808406 644981836 28516 -55 2227 PDDH2 1280PYH08 Pyrite Hill 110 MGA94_54 51800954 644988543 28614 -60 2227 PDDH2 880PYH09 Pyrite Hill 1005 MGA94_54 5179174 644993176 28655 -485 2227 PDDH2 880PYH10 Pyrite Hill 1453 MGA94_54 51839296 644956596 28553 -50 2227 PDDH2 25580PYH11 Pyrite Hill 1031 MGA94_54 51844096 644932952 29725 -50 2807 PDDH2 1880PYH12 Pyrite Hill 1095 MGA94_54 51840728 644913731 29263 -50 2807 PDDH2 4280BGH05 Big Hill 5486 MGA94_54 52095535 644953441 28893 -60 1637 RCDDH3 45598TC01 Railway 100 MGA94_54 52275006 645133973 26727 -60 1589 RC5
98TC02 Railway 100 MGA94_54 52239241 645138683 26678 -60 1409 RC5
98TC03 Big Hill 84 MGA94_54 52081645 644936939 31305 -60 1359 RC5
98TC04 Big Hill 13825 MGA94_54 52086005 644945085 30409 -60 1409 RC5
98TC05 Big Hill 70 MGA94_54 520728 644932807 28863 -50 1229 RC5
98TC06 Big Hill 108 MGA94_54 520715 6449343 28513 -60 1259 RC5
98TC07 Big Hill 120 MGA94_54 52078597 644938821 29922 -50 1339 RC5
98TC08 Big Hill 90 MGA94_54 52080195 644947781 29101 -60 1509 RC5
98TC09 Big Hill 114 MGA94_54 52082221 644946079 29625 -60 1339 RC5
98TC10 Big Hill 134 MGA94_54 521018 6449576 2815 -50 1729 RC5
98TC11 Railway 35 MGA94_54 5224112 645137396 26701 -60 1329 RC5
80BGH06 Big Hill 6804 MGA94_54 520880 6449472 299 -60 1707 RCDDH3 5880BGH08 Big Hill 797 MGA94_54 52076879 644939093 29629 -60 1267 RCDDH3 69980BGH07 Big Hill 23 MGA94_54 52113656 6449599 27411 -60 1777 RC5
93MGM01 Pyrite Hill 70 MGA94_54 51818544 644971377 28628 -60 2228 RDDH4 2493MGM02 Pyrite Hill 180 MGA94_54 51851545 644945467 28479 -60 2588 RDDH4 4811PHR01 Pyrite Hill 150 MGA94_54 51843547 644907276 28534 -60 27906 RC5
11PHR02 Pyrite Hill 198 MGA94_54 51849992 644915931 28379 -60 27906 RC5
11PHR03 Pyrite Hill 240 MGA94_54 5185603 644918961 28026 -60 27906 RC5
11PHR04 Pyrite Hill 186 MGA94_54 51852863 6449257 28403 -60 27906 RC5
11PHR05 Pyrite Hill 234 MGA94_54 51858425 644939762 28022 -60 25906 RC5
11PHR06 Pyrite Hill 180 MGA94_54 5184909 644952259 28402 -60 23406 RC5
11PHR07 Pyrite Hill 174 MGA94_54 51841347 64495929 28286 -60 21906 RC5
11PHR08 Pyrite Hill 180 MGA94_54 51834274 644965585 28288 -60 21806 RC5
11PSR01 Pyrite Hill 59 MGA94_54 51874273 6448864 26838 -60 25806 RC5
11PSR02 Pyrite Hill 132 MGA94_54 51871938 644896001 27041 -60 25506 RC5
11PSR03 Pyrite Hill 78 MGA94_54 51868699 644905535 27279 -60 25506 RC5
12BER01 Railway 157 MGA94_54 52166731 644989323 27769 -60 141 RC5
12BER02 Railway 132 MGA94_54 52121267 644969067 27353 -60 162 RC5
12BER03 Railway 151 MGA94_54 52187901 645043547 28859 -60 102 RC5
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 26
Historic down-hole information (continued)
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
12BER04 Railway 148 MGA94_54 52235392 645126835 27435 -60 131 RC5
12BER05 Railway 145 MGA94_54 52243947 645116784 29973 -60 124 RC5
12BER06 Railway 169 MGA94_54 52248137 645109135 29595 -60 118 RC5
12BER07 Railway 115 MGA94_54 52232372 645074875 27791 -60 144 RC5
12BER08 Railway 193 MGA94_54 52222079 64508118 27316 -60 129 RC5
12BER09 Railway 13975 MGA94_54 52210125 645088144 27591 -60 129 RC5
12BER10 Railway 151 MGA94_54 52195345 645071618 28449 -60 129 RC5
12BER11 Railway 193 MGA94_54 52273722 645137661 26583 -60 153 RC5
12BER12 Railway 111 MGA94_54 52290973 645151676 27736 -60 153 RC5
12BER13 Railway 205 MGA94_54 52288381 645155754 27103 -60 156 RC5
12BER14 Railway 151 MGA94_54 52312483 645163707 28836 -60 152 RC5
12BER15 Railway 109 MGA94_54 5233113 64518417 28395 -60 154 RC5
12BER16 Railway 115 MGA94_54 52299408 645159199 27595 -60 156 RC5
12BER17 Railway 1155 MGA94_54 5225165 645131494 2691 -60 153 RC5
12BER18 Railway 157 MGA94_54 52233275 645128131 27229 -60 129 RC5
12BER19 Railway 97 MGA94_54 52224055 645106715 27616 -60 135 RC5
12BER20 Railway 120 MGA94_54 52129169 644973363 27695 -60 165 RC5
13BED01 Railway 3492 MGA94_54 52248021 645109243 29601 -60 3007 DDH1
16DM01 Pyrite Hill 1616 MGA94_54 51841138 644959389 28269 -60 2155 DDH1
16DM02 Pyrite Hill 1834 MGA94_54 51852662 644926158 28418 -60 2850 DDH1
16DM03 Big Hill 1265 MGA94_54 5210371 644956749 28301 -60 1585 DDH1
16DM04 Big Hill 1054 MGA94_54 52081474 64494644 29618 -55 1285 DDH1
16DM05 Railway 2465 MGA94_54 5221037 645088187 27662 -60 1285 DDH1
16DM06 Railway 1604 MGA94_54 52291157 645151913 2785 -60 1525 DDH1
16DM07 Railway 2425 MGA94_54 52299526 645159826 27636 -60 1561 DDH1
16DM08 Railway 2585 MGA94_54 52235145 645127307 27385 -60 1309 DDH1
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 27
Down hole length and interception depth ndash 2017 holes
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THD01 34 123 89 982 94 87
including 35 41 6 1143 119 106
and 50 55 5 1311 131 115
and 81 122 41 1366 118 11
17THD02 47 134 87 911 88 92
including 48 77 29 1238 111 114
and 116 134 18 1199 110 111
17THD03 40 635 235 894 116 108
including 49 63 14 1076 143 124
17THD04 20 29 9 1033 86 872 96 24 703 88 81
17THD05 44 60 16 993 98 85
including 44 56 12 1094 109 94
71 76 5 840 64 6317THD06 39 85 46 1136 114 101
including 40 70 30 1227 122 104
and 76 85 9 1148 107 100
17THD07 15 128 113 879 81 88
including 47 55 8 1048 117 103
and 61 102 41 1452 125 123
142 152 10 704 6 102199 204 5 706 49 65
17THR001 27 63 36 1075 106 104
including 37 63 26 1280 119 115
75 84 9 755 91 139
17THR002 37 43 6 711 69 82
91 136 45 983 98 105
including 102 136 34 1190 117 118
17THR003 4 59 55 937 93 94
including 10 46 36 1212 116 110
17THR004 49 146 97 888 102 102
including 51 113 62 1051 114 113
17THR005 52 72 20 1053 128 126
including 53 63 10 1145 125 130
17THR006 14 74 60 754 86 87
including 17 44 27 1176 125 121
17THR007 5 22 17 837 0 125
including 12 19 7 1049 0 105
128 154 26 1034 114 115
including 128 146 18 1321 144 143
17THR008 37 78 41 1319 122 11217THR009 29 65 36 957 94 92including 34 60 26 1150 111 102
100 105 5 833 129 12717THR010 51 57 6 729 49 5317THR011 30 83 53 1116 12 109
including 31 62 31 1423 155 135
17THR012 50 117 67 748 75 86
including 59 67 8 1084 103 126
and 75 102 27 1120 110 113
172 177 5 725 64 64
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 28
Down hole length and interception depth ndash 2017 holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THR013 19 73 54 888 54 5
including 19 29 10 2576 88 77
17THR014 12 45 33 749 81 74
including 25 33 8 1148 113 94
17THR015 40 48 8 995 89 8117THR016 66 115 49 1096 129 134
including 66 81 15 1184 142 139
and 89 114 25 1183 134 141
17THR017 54 112 58 1383 132 128
including 56 85 29 2042 183 158
17THR018 47 63 16 1124 151 14117THR019 42 59 17 1032 107 114
17THR020 29 49 20 1067 116 115
including 29 36 7 1352 135 126
17THR021 44 64 20 1204 131 12717THR022 101 138 37 1152 107 1217THR023 91 137 46 1271 139 133
including 91 97 6 1953 187 166
and 114 125 11 2707 311 265
17THR027 29 54 25 1176 126 118
including 30 47 17 1382 141 125
Down hole length and interception depth ndash historic holes
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
11PHR02 74 114 40 875 108 116
11PHR03 150 162 12 750 83 96
11PHR03 163 190 27 732 106 119
11PHR03 206 227 21 988 117 13
11PHR04 124 172 48 1049 128 129
11PHR05 197 219 22 1138 107 133
11PHR06 104 135 31 854 83 115
11PHR06 155 171 16 1315 12 122
11PHR07 96 147 51 941 95 99
11PHR08 103 115 12 1417 139 148
11PHR08 126 144 18 1048 126 142
12BER01 115 139 24 768 72 74
12BER02 18 25 7 1062 103 93
12BER02 113 123 10 907 85 86
12BER04 41 90 49 1191 114 127
12BER04 121 126 5 1241 9 112
12BER05 33 39 6 1109 79 92
12BER05 65 76 11 721 63 66
12BER06 131 169 38 844 83 128
12BER07 38 43 5 704 10 101
12BER09 33 92 59 841 9 116
12BER11 31 62 31 738 84 126
12BER11 92 159 67 1061 10 131
12BER11 173 193 20 737 67 83
12BER12 27 81 54 1430 181 189
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 29
Down hole length and interception depth ndash historic holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
12BER13 21 42 21 761 74 91
12BER13 65 75 10 1882 204 216
12BER14 28 55 27 1013 125 129
12BER16 25 100 75 1008 106 107
12BER17 92 99 7 739 6 63
12BER18 117 157 40 1017 112 114
12BER19 34 56 22 1151 104 108
12BER19 68 75 7 780 61 6
12BER20 21 46 25 731 69 75
13BED01 266 2915 255 872 85 78
16DM01 96 147 51 851 91 86
16DM02 127 172 45 1118 138 136
16DM03 104 111 7 838 103 9
16DM04 91 99 8 887 91 84
16DM05 30 103 73 793 82 9
16DM05 199 211 12 830 251 221
16DM06 28 84 56 1280 162 167
16DM06 138 146 8 722 78 112
16DM07 35 60 25 1232 111 111
16DM07 71 104 33 1224 133 134
16DM08 76 100 24 1026 11 12
16DM08 165 177 12 921 122 126
17THD01 34 123 89 982 94 87
17THD02 47 134 87 911 88 92
17THD03 40 635 235 894 116 108
17THD04 20 29 9 1033 86 8
17THD04 72 96 24 703 88 81
17THD05 44 60 16 993 98 85
17THD05 71 76 5 840 64 63
17THD06 39 85 46 1136 114 101
17THD07 15 128 113 879 81 88
17THD07 142 152 10 704 6 102
17THD07 199 204 5 706 49 65
17THR001 27 63 36 1075 106 104
17THR001 75 84 9 755 91 139
17THR002 37 43 6 711 69 82
17THR002 91 136 45 983 98 105
17THR003 4 59 55 937 93 94
17THR004 49 146 97 888 102 102
17THR005 52 72 20 1053 128 126
17THR006 14 74 60 754 86 87
17THR007 5 22 17 837 0 125
17THR007 128 154 26 1034 114 115
17THR008 37 78 41 1319 122 112
17THR009 29 65 36 957 94 92
17THR009 100 105 5 833 129 127
17THR010 51 57 6 729 49 53
17THR011 30 83 53 1116 12 109
17THR012 50 117 67 748 75 86
17THR012 172 177 5 725 64 64
17THR013 19 73 54 888 54 5
17THR014 12 45 33 749 81 74
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 30
Down hole length and interception depth ndash historic holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THR015 40 48 8 995 89 81
17THR016 66 115 49 1096 129 134
17THR017 54 112 58 1383 132 128
17THR018 47 63 16 1124 151 141
17THR019 42 59 17 1032 32 114
17THR020 29 49 20 1067 116 115
17THR021 44 64 20 1204 131 127
17THR022 101 138 37 1152 107 12
17THR023 91 137 46 1271 139 133
17THR027 29 54 25 1176 126 118
67TH01 12344 20001 7657 979 0 0
70BH01 3962 5334 1372 3323 31 0
70BH01 6431 8443 2012 1203 95 0
70BH02 7406 8686 128 704 75 0
70TH02 78 841 61 1666 175 154
70TH02 871 1021 15 1661 8 72
70TH03 777 1295 518 1016 129 132
80BGH05 39 49 10 752 0 0
80BGH06 18 6804 5004 969 0 0
80BGH08 44 7815 3415 939 0 0
80PYH01 75 17 95 725 0 0
80PYH02 341 4825 1415 1121 0 0
80PYH03 23 35 12 711 0 0
80PYH04 3975 55 1525 735 0 0
80PYH05 367 65 283 1160 118 0
80PYH06 54 62 8 905 0 0
80PYH07 67 794 124 1113 125 0
80PYH10 4845 1374 8895 831 86 0
80PYH11 346 465 119 916 8 0
80PYH11 572 9105 3385 1239 106 0
80PYH12 302 365 63 791 102 0
80PYH12 8515 908 565 857 146 0
80PYH14 2518 2734 216 1252 131 0
93MGM02 85 160 75 941 85 0
98TC01 20 47 27 744 91 126
98TC01 48 71 23 917 119 164
98TC03 34 45 11 1480 55 6
98TC03 68 79 11 1095 43 42
98TC04 84 94 10 966 39 4
98TC04 107 133 26 771 77 82
98TC05 24 62 38 754 64 7
98TC06 66 72 6 727 104 111
98TC06 76 101 25 767 101 106
98TC07 35 46 11 1546 165 171
98TC07 61 82 21 728 91 94
98TC09 32 39 7 716 49 174
98TC09 82 107 25 732 6 67
98TC10 101 125 24 732 79 8
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Criteria JORC Code Explanation Commentary
Data aggregation methods
a In reporting Exploration Results weighting averaging techniques maximum andor minimum grade truncations (eg cutting of high grades) and cut-off grades are usually Material and should be stated
a Where aggregate intercepts incorporate short lengths of high grade results and longer lengths of low grade results the procedure used for such aggregation should be stated and some typical examples of such aggregations should be shown in detail
a The assumptions used for any reporting of metal equivalent values should be clearly stated
Drilling a Drill hole intercept grades are typically reported as down-hole
length-weighted averages with any non-recovered sample within the reported intervals treated as no grade The cut-off used for selecting significant intersections is selected to reflect the overall tenor of mineralisation in most cases 500ppm cobalt
a No top cuts have been applied when calculating average grades for reported significant intersections
a No metal equivalent values are reported
Relationship between mineralis- ation widths and intercept lengths
a These relationships are particularly important in the reporting of Exploration Results
a If the geometry of the mineralisation with respect to the drillhole angle is known its nature should be reported
a If it is not known and only the down hole lengths are reported there should be a clear statement to this effect (eg lsquodown hole length true width not knownrsquo)
a Drill holes at the Thackaringa project are typically angled at 50deg or 60deg and drilled perpendicular to the mineralised trend with drilling orientations adjusted along strike to accommodate folded geological sequences
a Mineralisation at the Big Hill and Railway prospects is steeply dipping and consequently mineralised intersections will be greater than true width At Pyrite Hill mineralisation is gently dipping and mineralised intersections will be close to true width
a There is insufficient geological knowledge to accurately estimate true widths and as such all drill intersections are reported as down hole lengths
Diagrams a Appropriate maps and sections (with scales) and tabulations of intercepts should be included for any significant discovery being reported These should include but not be limited to a plan view of drill hole collar locations and appropriate sectional views
a Appropriate maps and sections are presented in the accompa-nying ASX release
Balanced reporting
a Where comprehensive reporting of all exploration results is not practicable representative reporting of both low and high grades andor widths should be practiced to avoid misleading reporting of Exploration Results
a Only mineralised drill hole intersections regarded as highly anomalous and of economic interest are reported The proportion of each hole represented by the reported intervals can be ascertained from the sum of the reported intervals divided by the total drill hole depth
a All assay results for drill holes included in the various Mineral Resource estimates have been considered and comprise results not necessarily regarded as anomalous
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 32
Criteria JORC Code Explanation Commentary
Other substantive exploration data
a Other exploration data if meaningful and material should be reported including (but not limited to) geological obser-vations geophysical survey results geochemical survey results bulk samples ndash size and method of treatment metallurgical test results bulk density groun d- water geotechnical and rock characteristics potential deleterious or contaminating substances
a No further exploration data is deemed material to the results presented in this release
Further work a The nature and scale of planned further work (eg tests for lateral extensions or depth extensions or large-scale step-out drilling)
a Diagrams clearly highlighting the areas of possible extensions including the main geological interpretations and future drilling areas provided this information is not commercially sensitive
a The nature and scale of planned further work will be determined following the completion of revised Mineral Resource estimation for the Thackaringa deposits scheduled for May 2017
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 22
Section 2 Reporting of Exploration Results(Criteria listed in the preceding section also apply to this section)
Criteria JORC Code Explanation Commentary
Mineral tenement and land tenure status
a Type reference namenumber location and ownership including agreements or material issues with third parties such as joint ventures partnerships overriding royalties native title interests historical sites wilderness or national park and environmental settings
a The security of the tenure held at the time of reporting along with any known impediments to obtaining a licence to operate in the area
a The Thackaringa Cobalt project is located approximately 25 kilometres west-southwest of Broken Hill and comprises four tenements with a total area of 63 km2
Tenement
Registered amp Beneficial Holder Minerals Grant Date Expiry Date
Annual Expenditure
Commit-ment
EL6622 Broken Hill Prospecting Limited (BPL)
Group 1 30082006 29082017 $47000
EL 8143 BPL Group 1 26072013 26072017 $14000
ML86 BPL Cobalt iron nickel platinum sulphur
05111975 04112017 $75000
ML87 BPL Cobalt iron nickel platinum sulphur
05111975 04112017 $75000
a The project tenure is subject to a Farm-In agreement between Cobalt Blue Holdings Limited (COB) and Broken Hill Prospecting Limited (BPL) The nature of this agreement is detailed in the COB Replacement Prospectus (as released 4 January 2017)
a The nearest residence (Thackaringa Station) is located approxi-mately three kilometres west of EL6622
a EL6622 is intersected by the Transcontinental Railway the Barrier Highway is located the north of the licence boundaries
a The majority of the project tenure is covered by Western Lands Lease which is considered to extinguish native title interest However Native Title Determination NC9732 (Barkandji Traditional Owners 8) is current over the area and may be relevant to Crown Land parcels (eg public roads) within the project area
a The project tenure is more than 90 kilometres from the nearest National Park and or Wilderness Area (Kinchega National Park) and approximately 20 kilometres south of the nearest Water Supply Reserve (Umberumberka Reservoir Water Supply Reserve)
a The Company is not aware of any impediments to obtaining a licence to operate in the area
Exploration done by other parties
a Acknowledgment and appraisal of exploration by other parties
a A detailed and complete record of all exploration activities undertaken prior to the BPL 2016 drilling program is appended to the JORC Table 1 which forms part of the Cobalt Blue Prospectus Document available on the COB website
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 23
Criteria JORC Code Explanation Commentary
Geology a Deposit type geological setting and style of mineralisation
Regional Geological Setting a The Thackaringa project is located in a deformed and metamor-
phosed Proterozoic supracrustal succession named the Willyama Supergroup which crops out as several inliers in western New South Wales including the Broken Hill Block (Willis et al 1982)
a Exploration by BPL Limited has been focused on the discovery of cobaltiferous pyrite deposits and Broken Hill type base-metal mineralisation both of which are known from historical exploration in the district
a The project area covers portions of the Broken Hill and Thackaringa group successions which host the majority of mineralisation in the region including the Broken Hill base-metal deposit The Sundown Group suite is also present The extensive sequence of quartz-albite-plagioclase rock that hosts the cobaltiferous pyrite mineralisation is interpreted as belonging to the Himalaya Formation which is stratigraphically at the top of the Thackaringa Group
Local Geological Setting a The oldest rocks in the region belong to the Curnamona Craton
which outcrops on the Broken Hill and Euriowie blocks a The overlying Proterozoic rocks have been broadly subdivided
into three major groupings of which the oldest groups are the highly deformed metasediments and igneous derived rocks of the Thackaringa and Broken Hill groups They comprise a major part of the Willyama Supergroup and host the giant Broken Hill massive Pb-Zn-Ag sulphide ore body EL6622 is within the Broken Hill block of the Curnamona Craton
Mineralisation Style a The Thackaringa Mineral deposits (Pyrite Hill Big Hill and Railway)
are characterised by large tonnage cobaltiferous-pyrite minerali-sation hosted within siliceous albitic gneisses and schists of the Himalaya Formation
a Cobalt mineralisation exists within stratabound pyritic horizons where cobalt is present within the pyrite lattice Mineralogical studies have indicated the majority of cobalt (~85) is found in solid solution with primary pyrite (Henley 1998)
a A strong correlation between pyrite content and cobalt grade is observed
a The regional geological setting indicates additional mineralisation targets including
a Stratiform Broken Hill Type (BHT) Copper-Lead-Zinc-Silver deposits
a Copper-rich BHT deposits a Stratiform to stratabound Copper-Cobalt-Gold deposits a Epigenetic Gold and Base metal deposits
Drill hole Information
a A summary of all information mat- erial to the understanding of the exploration results including a tab- ulation of the following information for all Material drill holes
a easting and northing of the drill hole collar
a elevation or RL (Reduced Level ndash elevation above sea level in metres) of the drill hole collar
a dip and azimuth of the hole
a down hole length and interception depth
a See drill holle summaries below
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 24
Drill hole summaries
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
17THD01 Pyrite Hill 1242 MGA54 518382 6449551 28906 -40 222 DDH1
17THD02 Pyrite Hill 1497 MGA54 518475 6449445 29054 -40 258 DDH1
17THD03 Pyrite Hill 785 MGA54 518370 6449190 30328 -40 2851 DDH1
17THD04 Big Hill 1198 MGA54 521078 6449589 27841 -45 1551 DDH1
17THD05 Big Hill 995 MGA54 521669 6449889 2785 -40 131 DDH1
17THD06 Railway 1655 MGA54 521970 6450705 2872 -45 128 DDH1
17THD07 Railway 2746 MGA54 522569 6451282 27067 -45 1565 DDH1
17THD08 Railway 1325 MGA54 522784 6451280 268881 -45 326 DDH1
17THD09 Railway 1205 MGA54 522905 6451511 278471 -40 1525 DDH1
17THD10 Railway 842 MGA54 522992 6451569 279779 -45 130 DDH1
17THD11 Railway 1115 MGA54 523109 6451682 280847 -40 1605 DDH1
17THD12 Railway 1265 MGA54 522796 6451419 272936 -40 14075 DDH1
17THD13 Railway 1055 MGA54 522836 6451456 276747 -40 1385 DDH1
17THD14 Pyrite Hill 99 MGA54 518375 6449089 29425 -60 285 DDH1
17THR001 Railway 156 MGA54 522615 6451277 267561 -60 120 RC5
17THR002 Railway 160 MGA54 522573 6451299 268511 -60 120 RC5
17THR003 Railway 96 MGA54 522124 6450868 27739 -60 130 RC5
17THR004 Railway 150 MGA54 522387 6451319 271453 -60 120 RC5
17THR005 Railway 72 MGA54 522024 6450783 282154 -60 120 RC5
17THR006 Railway 114 MGA54 522049 6450780 28401 -58 125 RC5
17THR007 Railway 180 MGA54 521965 6450699 286585 -59 125 RC5
17THR008 Railway 132 MGA54 521917 6450562 291682 -56 105 RC5
17THR009 Railway 120 MGA54 521906 6450496 292751 -58 105 RC5
17THR010 Railway 72 MGA54 521959 6450398 286445 -56 285 RC5
17THR011 Railway 126 MGA54 522302 6451169 276812 -56 120 RC5
17THR012 Railway 180 MGA54 522440 6451304 274931 -58 173 RC5
17THR013 Big Hill 102 MGA54 521750 6449942 28489 -60 1305 RC5
17THR014 Big Hill 104 MGA54 521628 6449796 277545 -53 130 RC5
17THR015 Big Hill 108 MGA54 521793 6449918 284847 -58 310 RC5
17THR016 Pyrite Hill 138 MGA54 518446 6449209 290391 -57 283 RC5
17THR017 Pyrite Hill 120 MGA54 518449 6449263 293147 -56 2815 RC5
17THR018 Pyrite Hill 78 MGA54 518027 6449806 289567 -60 222 RC5
17THR019 Pyrite Hill 72 MGA54 518105 6449754 287701 -55 222 RC5
17THR020 Pyrite Hill 66 MGA54 518166 6449695 288685 -60 222 RC5
17THR021 Pyrite Hill 78 MGA54 518183 6449717 286007 -60 222 RC5
17THR022 Pyrite Hill 156 MGA54 518510 6449306 28682 -55 281 RC5
17THR023 Pyrite Hill 150 MGA54 518506 6449377 289481 -57 2645 RC5
17THR024 Pyrite Hill 150 MGA54 518457 6449498 288137 -595 2285 RC5
17THR025 Pyrite Hill 114 MGA54 518311 6449609 287463 -60 222 RC5
17THR026 Pyrite Hill 114 MGA54 518268 6449681 284164 -60 222 RC5
17THR027 Pyrite Hill 72 MGA54 518243 6449646 287176 -60 222 RC5
17THR028 Railway 150 MGA54 522457 6451167 300659 -60 350 RC5
17THR029 Railway 162 MGA54 522482 6451084 295964 -60 175 RC5
17THR030 Railway 138 MGA54 522783 6451423 270814 -55 140 RC5
17THR031 Railway 120 MGA54 522945 6451566 27619 -55 145 RC5
17THR032 Railway 132 MGA54 522819 6451473 273712 -53 140 RC5
17THR033 Railway 120 MGA54 522501 6451315 26963 -60 175 RC5
17THR034 Railway 132 MGA54 522321 6451214 275947 -55 127 RC5
17THR035 Railway 156 MGA54 522259 6451120 275749 -552 130 RC5
17THR036 Railway 92 MGA54 522186 6450998 275339 -612 130 RC5
17THR037 Railway 126 MGA54 522148 6450941 274202 -55 126 RC5
17THR038 Railway 168 MGA54 521927 6450619 289555 -55 108 RC5
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 25
Historic down-hole information
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
67TH01 Pyrite Hill 3042 MGA94_54 518564805 644946003 280643 -55 2606 DDH1
70TH02 Pyrite Hill 1486 MGA94_54 51827242 644968054 28408 -61 2186 DDH1
70TH03 Pyrite Hill 1414 MGA94_54 51844985 644921188 28981 -62 2836 DDH1
70BH01 Big Hill 1027 MGA94_54 52085056 64493085 28456 -47 3186 DDH1
70BH02 Big Hill 1039 MGA94_54 52078612 64492644 2801 -50 3186 DDH1
80PYH13 Pyrite Hill 77 MGA94_54 5183582 64490377 29035 -50 2807 DDH1
80PYH14 Pyrite Hill 3003 MGA94_54 51866118 644928762 27796 -60 2807 DDH1
80PYH03 Pyrite Hill 35 MGA94_54 5182515 64495699 2994 -60 2207 PDDH2 2280BGH09 Big Hill 1005 MGA94_54 52065743 644929252 27280 -50 1447 DDH1
80PYH01 Pyrite Hill 2453 MGA94_54 5182462 64495657 3011 -60 2027 PDDH2 680PYH02 Pyrite Hill 513 MGA94_54 5182607 64495742 2976 -60 2207 PDDH2 335880PYH04 Pyrite Hill 55 MGA94_54 51836655 644923174 30834 -60 2957 PDDH2 38780PYH05 Pyrite Hill 936 MGA94_54 51822697 644967819 28518 -49 2227 PDDH2 1880PYH06 Pyrite Hill 855 MGA94_54 51816348 64497573 28373 -544 2227 PDDH2 1880PYH07 Pyrite Hill 945 MGA94_54 51808406 644981836 28516 -55 2227 PDDH2 1280PYH08 Pyrite Hill 110 MGA94_54 51800954 644988543 28614 -60 2227 PDDH2 880PYH09 Pyrite Hill 1005 MGA94_54 5179174 644993176 28655 -485 2227 PDDH2 880PYH10 Pyrite Hill 1453 MGA94_54 51839296 644956596 28553 -50 2227 PDDH2 25580PYH11 Pyrite Hill 1031 MGA94_54 51844096 644932952 29725 -50 2807 PDDH2 1880PYH12 Pyrite Hill 1095 MGA94_54 51840728 644913731 29263 -50 2807 PDDH2 4280BGH05 Big Hill 5486 MGA94_54 52095535 644953441 28893 -60 1637 RCDDH3 45598TC01 Railway 100 MGA94_54 52275006 645133973 26727 -60 1589 RC5
98TC02 Railway 100 MGA94_54 52239241 645138683 26678 -60 1409 RC5
98TC03 Big Hill 84 MGA94_54 52081645 644936939 31305 -60 1359 RC5
98TC04 Big Hill 13825 MGA94_54 52086005 644945085 30409 -60 1409 RC5
98TC05 Big Hill 70 MGA94_54 520728 644932807 28863 -50 1229 RC5
98TC06 Big Hill 108 MGA94_54 520715 6449343 28513 -60 1259 RC5
98TC07 Big Hill 120 MGA94_54 52078597 644938821 29922 -50 1339 RC5
98TC08 Big Hill 90 MGA94_54 52080195 644947781 29101 -60 1509 RC5
98TC09 Big Hill 114 MGA94_54 52082221 644946079 29625 -60 1339 RC5
98TC10 Big Hill 134 MGA94_54 521018 6449576 2815 -50 1729 RC5
98TC11 Railway 35 MGA94_54 5224112 645137396 26701 -60 1329 RC5
80BGH06 Big Hill 6804 MGA94_54 520880 6449472 299 -60 1707 RCDDH3 5880BGH08 Big Hill 797 MGA94_54 52076879 644939093 29629 -60 1267 RCDDH3 69980BGH07 Big Hill 23 MGA94_54 52113656 6449599 27411 -60 1777 RC5
93MGM01 Pyrite Hill 70 MGA94_54 51818544 644971377 28628 -60 2228 RDDH4 2493MGM02 Pyrite Hill 180 MGA94_54 51851545 644945467 28479 -60 2588 RDDH4 4811PHR01 Pyrite Hill 150 MGA94_54 51843547 644907276 28534 -60 27906 RC5
11PHR02 Pyrite Hill 198 MGA94_54 51849992 644915931 28379 -60 27906 RC5
11PHR03 Pyrite Hill 240 MGA94_54 5185603 644918961 28026 -60 27906 RC5
11PHR04 Pyrite Hill 186 MGA94_54 51852863 6449257 28403 -60 27906 RC5
11PHR05 Pyrite Hill 234 MGA94_54 51858425 644939762 28022 -60 25906 RC5
11PHR06 Pyrite Hill 180 MGA94_54 5184909 644952259 28402 -60 23406 RC5
11PHR07 Pyrite Hill 174 MGA94_54 51841347 64495929 28286 -60 21906 RC5
11PHR08 Pyrite Hill 180 MGA94_54 51834274 644965585 28288 -60 21806 RC5
11PSR01 Pyrite Hill 59 MGA94_54 51874273 6448864 26838 -60 25806 RC5
11PSR02 Pyrite Hill 132 MGA94_54 51871938 644896001 27041 -60 25506 RC5
11PSR03 Pyrite Hill 78 MGA94_54 51868699 644905535 27279 -60 25506 RC5
12BER01 Railway 157 MGA94_54 52166731 644989323 27769 -60 141 RC5
12BER02 Railway 132 MGA94_54 52121267 644969067 27353 -60 162 RC5
12BER03 Railway 151 MGA94_54 52187901 645043547 28859 -60 102 RC5
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 26
Historic down-hole information (continued)
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
12BER04 Railway 148 MGA94_54 52235392 645126835 27435 -60 131 RC5
12BER05 Railway 145 MGA94_54 52243947 645116784 29973 -60 124 RC5
12BER06 Railway 169 MGA94_54 52248137 645109135 29595 -60 118 RC5
12BER07 Railway 115 MGA94_54 52232372 645074875 27791 -60 144 RC5
12BER08 Railway 193 MGA94_54 52222079 64508118 27316 -60 129 RC5
12BER09 Railway 13975 MGA94_54 52210125 645088144 27591 -60 129 RC5
12BER10 Railway 151 MGA94_54 52195345 645071618 28449 -60 129 RC5
12BER11 Railway 193 MGA94_54 52273722 645137661 26583 -60 153 RC5
12BER12 Railway 111 MGA94_54 52290973 645151676 27736 -60 153 RC5
12BER13 Railway 205 MGA94_54 52288381 645155754 27103 -60 156 RC5
12BER14 Railway 151 MGA94_54 52312483 645163707 28836 -60 152 RC5
12BER15 Railway 109 MGA94_54 5233113 64518417 28395 -60 154 RC5
12BER16 Railway 115 MGA94_54 52299408 645159199 27595 -60 156 RC5
12BER17 Railway 1155 MGA94_54 5225165 645131494 2691 -60 153 RC5
12BER18 Railway 157 MGA94_54 52233275 645128131 27229 -60 129 RC5
12BER19 Railway 97 MGA94_54 52224055 645106715 27616 -60 135 RC5
12BER20 Railway 120 MGA94_54 52129169 644973363 27695 -60 165 RC5
13BED01 Railway 3492 MGA94_54 52248021 645109243 29601 -60 3007 DDH1
16DM01 Pyrite Hill 1616 MGA94_54 51841138 644959389 28269 -60 2155 DDH1
16DM02 Pyrite Hill 1834 MGA94_54 51852662 644926158 28418 -60 2850 DDH1
16DM03 Big Hill 1265 MGA94_54 5210371 644956749 28301 -60 1585 DDH1
16DM04 Big Hill 1054 MGA94_54 52081474 64494644 29618 -55 1285 DDH1
16DM05 Railway 2465 MGA94_54 5221037 645088187 27662 -60 1285 DDH1
16DM06 Railway 1604 MGA94_54 52291157 645151913 2785 -60 1525 DDH1
16DM07 Railway 2425 MGA94_54 52299526 645159826 27636 -60 1561 DDH1
16DM08 Railway 2585 MGA94_54 52235145 645127307 27385 -60 1309 DDH1
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 27
Down hole length and interception depth ndash 2017 holes
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THD01 34 123 89 982 94 87
including 35 41 6 1143 119 106
and 50 55 5 1311 131 115
and 81 122 41 1366 118 11
17THD02 47 134 87 911 88 92
including 48 77 29 1238 111 114
and 116 134 18 1199 110 111
17THD03 40 635 235 894 116 108
including 49 63 14 1076 143 124
17THD04 20 29 9 1033 86 872 96 24 703 88 81
17THD05 44 60 16 993 98 85
including 44 56 12 1094 109 94
71 76 5 840 64 6317THD06 39 85 46 1136 114 101
including 40 70 30 1227 122 104
and 76 85 9 1148 107 100
17THD07 15 128 113 879 81 88
including 47 55 8 1048 117 103
and 61 102 41 1452 125 123
142 152 10 704 6 102199 204 5 706 49 65
17THR001 27 63 36 1075 106 104
including 37 63 26 1280 119 115
75 84 9 755 91 139
17THR002 37 43 6 711 69 82
91 136 45 983 98 105
including 102 136 34 1190 117 118
17THR003 4 59 55 937 93 94
including 10 46 36 1212 116 110
17THR004 49 146 97 888 102 102
including 51 113 62 1051 114 113
17THR005 52 72 20 1053 128 126
including 53 63 10 1145 125 130
17THR006 14 74 60 754 86 87
including 17 44 27 1176 125 121
17THR007 5 22 17 837 0 125
including 12 19 7 1049 0 105
128 154 26 1034 114 115
including 128 146 18 1321 144 143
17THR008 37 78 41 1319 122 11217THR009 29 65 36 957 94 92including 34 60 26 1150 111 102
100 105 5 833 129 12717THR010 51 57 6 729 49 5317THR011 30 83 53 1116 12 109
including 31 62 31 1423 155 135
17THR012 50 117 67 748 75 86
including 59 67 8 1084 103 126
and 75 102 27 1120 110 113
172 177 5 725 64 64
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 28
Down hole length and interception depth ndash 2017 holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THR013 19 73 54 888 54 5
including 19 29 10 2576 88 77
17THR014 12 45 33 749 81 74
including 25 33 8 1148 113 94
17THR015 40 48 8 995 89 8117THR016 66 115 49 1096 129 134
including 66 81 15 1184 142 139
and 89 114 25 1183 134 141
17THR017 54 112 58 1383 132 128
including 56 85 29 2042 183 158
17THR018 47 63 16 1124 151 14117THR019 42 59 17 1032 107 114
17THR020 29 49 20 1067 116 115
including 29 36 7 1352 135 126
17THR021 44 64 20 1204 131 12717THR022 101 138 37 1152 107 1217THR023 91 137 46 1271 139 133
including 91 97 6 1953 187 166
and 114 125 11 2707 311 265
17THR027 29 54 25 1176 126 118
including 30 47 17 1382 141 125
Down hole length and interception depth ndash historic holes
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
11PHR02 74 114 40 875 108 116
11PHR03 150 162 12 750 83 96
11PHR03 163 190 27 732 106 119
11PHR03 206 227 21 988 117 13
11PHR04 124 172 48 1049 128 129
11PHR05 197 219 22 1138 107 133
11PHR06 104 135 31 854 83 115
11PHR06 155 171 16 1315 12 122
11PHR07 96 147 51 941 95 99
11PHR08 103 115 12 1417 139 148
11PHR08 126 144 18 1048 126 142
12BER01 115 139 24 768 72 74
12BER02 18 25 7 1062 103 93
12BER02 113 123 10 907 85 86
12BER04 41 90 49 1191 114 127
12BER04 121 126 5 1241 9 112
12BER05 33 39 6 1109 79 92
12BER05 65 76 11 721 63 66
12BER06 131 169 38 844 83 128
12BER07 38 43 5 704 10 101
12BER09 33 92 59 841 9 116
12BER11 31 62 31 738 84 126
12BER11 92 159 67 1061 10 131
12BER11 173 193 20 737 67 83
12BER12 27 81 54 1430 181 189
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 29
Down hole length and interception depth ndash historic holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
12BER13 21 42 21 761 74 91
12BER13 65 75 10 1882 204 216
12BER14 28 55 27 1013 125 129
12BER16 25 100 75 1008 106 107
12BER17 92 99 7 739 6 63
12BER18 117 157 40 1017 112 114
12BER19 34 56 22 1151 104 108
12BER19 68 75 7 780 61 6
12BER20 21 46 25 731 69 75
13BED01 266 2915 255 872 85 78
16DM01 96 147 51 851 91 86
16DM02 127 172 45 1118 138 136
16DM03 104 111 7 838 103 9
16DM04 91 99 8 887 91 84
16DM05 30 103 73 793 82 9
16DM05 199 211 12 830 251 221
16DM06 28 84 56 1280 162 167
16DM06 138 146 8 722 78 112
16DM07 35 60 25 1232 111 111
16DM07 71 104 33 1224 133 134
16DM08 76 100 24 1026 11 12
16DM08 165 177 12 921 122 126
17THD01 34 123 89 982 94 87
17THD02 47 134 87 911 88 92
17THD03 40 635 235 894 116 108
17THD04 20 29 9 1033 86 8
17THD04 72 96 24 703 88 81
17THD05 44 60 16 993 98 85
17THD05 71 76 5 840 64 63
17THD06 39 85 46 1136 114 101
17THD07 15 128 113 879 81 88
17THD07 142 152 10 704 6 102
17THD07 199 204 5 706 49 65
17THR001 27 63 36 1075 106 104
17THR001 75 84 9 755 91 139
17THR002 37 43 6 711 69 82
17THR002 91 136 45 983 98 105
17THR003 4 59 55 937 93 94
17THR004 49 146 97 888 102 102
17THR005 52 72 20 1053 128 126
17THR006 14 74 60 754 86 87
17THR007 5 22 17 837 0 125
17THR007 128 154 26 1034 114 115
17THR008 37 78 41 1319 122 112
17THR009 29 65 36 957 94 92
17THR009 100 105 5 833 129 127
17THR010 51 57 6 729 49 53
17THR011 30 83 53 1116 12 109
17THR012 50 117 67 748 75 86
17THR012 172 177 5 725 64 64
17THR013 19 73 54 888 54 5
17THR014 12 45 33 749 81 74
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 30
Down hole length and interception depth ndash historic holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THR015 40 48 8 995 89 81
17THR016 66 115 49 1096 129 134
17THR017 54 112 58 1383 132 128
17THR018 47 63 16 1124 151 141
17THR019 42 59 17 1032 32 114
17THR020 29 49 20 1067 116 115
17THR021 44 64 20 1204 131 127
17THR022 101 138 37 1152 107 12
17THR023 91 137 46 1271 139 133
17THR027 29 54 25 1176 126 118
67TH01 12344 20001 7657 979 0 0
70BH01 3962 5334 1372 3323 31 0
70BH01 6431 8443 2012 1203 95 0
70BH02 7406 8686 128 704 75 0
70TH02 78 841 61 1666 175 154
70TH02 871 1021 15 1661 8 72
70TH03 777 1295 518 1016 129 132
80BGH05 39 49 10 752 0 0
80BGH06 18 6804 5004 969 0 0
80BGH08 44 7815 3415 939 0 0
80PYH01 75 17 95 725 0 0
80PYH02 341 4825 1415 1121 0 0
80PYH03 23 35 12 711 0 0
80PYH04 3975 55 1525 735 0 0
80PYH05 367 65 283 1160 118 0
80PYH06 54 62 8 905 0 0
80PYH07 67 794 124 1113 125 0
80PYH10 4845 1374 8895 831 86 0
80PYH11 346 465 119 916 8 0
80PYH11 572 9105 3385 1239 106 0
80PYH12 302 365 63 791 102 0
80PYH12 8515 908 565 857 146 0
80PYH14 2518 2734 216 1252 131 0
93MGM02 85 160 75 941 85 0
98TC01 20 47 27 744 91 126
98TC01 48 71 23 917 119 164
98TC03 34 45 11 1480 55 6
98TC03 68 79 11 1095 43 42
98TC04 84 94 10 966 39 4
98TC04 107 133 26 771 77 82
98TC05 24 62 38 754 64 7
98TC06 66 72 6 727 104 111
98TC06 76 101 25 767 101 106
98TC07 35 46 11 1546 165 171
98TC07 61 82 21 728 91 94
98TC09 32 39 7 716 49 174
98TC09 82 107 25 732 6 67
98TC10 101 125 24 732 79 8
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 31
Criteria JORC Code Explanation Commentary
Data aggregation methods
a In reporting Exploration Results weighting averaging techniques maximum andor minimum grade truncations (eg cutting of high grades) and cut-off grades are usually Material and should be stated
a Where aggregate intercepts incorporate short lengths of high grade results and longer lengths of low grade results the procedure used for such aggregation should be stated and some typical examples of such aggregations should be shown in detail
a The assumptions used for any reporting of metal equivalent values should be clearly stated
Drilling a Drill hole intercept grades are typically reported as down-hole
length-weighted averages with any non-recovered sample within the reported intervals treated as no grade The cut-off used for selecting significant intersections is selected to reflect the overall tenor of mineralisation in most cases 500ppm cobalt
a No top cuts have been applied when calculating average grades for reported significant intersections
a No metal equivalent values are reported
Relationship between mineralis- ation widths and intercept lengths
a These relationships are particularly important in the reporting of Exploration Results
a If the geometry of the mineralisation with respect to the drillhole angle is known its nature should be reported
a If it is not known and only the down hole lengths are reported there should be a clear statement to this effect (eg lsquodown hole length true width not knownrsquo)
a Drill holes at the Thackaringa project are typically angled at 50deg or 60deg and drilled perpendicular to the mineralised trend with drilling orientations adjusted along strike to accommodate folded geological sequences
a Mineralisation at the Big Hill and Railway prospects is steeply dipping and consequently mineralised intersections will be greater than true width At Pyrite Hill mineralisation is gently dipping and mineralised intersections will be close to true width
a There is insufficient geological knowledge to accurately estimate true widths and as such all drill intersections are reported as down hole lengths
Diagrams a Appropriate maps and sections (with scales) and tabulations of intercepts should be included for any significant discovery being reported These should include but not be limited to a plan view of drill hole collar locations and appropriate sectional views
a Appropriate maps and sections are presented in the accompa-nying ASX release
Balanced reporting
a Where comprehensive reporting of all exploration results is not practicable representative reporting of both low and high grades andor widths should be practiced to avoid misleading reporting of Exploration Results
a Only mineralised drill hole intersections regarded as highly anomalous and of economic interest are reported The proportion of each hole represented by the reported intervals can be ascertained from the sum of the reported intervals divided by the total drill hole depth
a All assay results for drill holes included in the various Mineral Resource estimates have been considered and comprise results not necessarily regarded as anomalous
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 32
Criteria JORC Code Explanation Commentary
Other substantive exploration data
a Other exploration data if meaningful and material should be reported including (but not limited to) geological obser-vations geophysical survey results geochemical survey results bulk samples ndash size and method of treatment metallurgical test results bulk density groun d- water geotechnical and rock characteristics potential deleterious or contaminating substances
a No further exploration data is deemed material to the results presented in this release
Further work a The nature and scale of planned further work (eg tests for lateral extensions or depth extensions or large-scale step-out drilling)
a Diagrams clearly highlighting the areas of possible extensions including the main geological interpretations and future drilling areas provided this information is not commercially sensitive
a The nature and scale of planned further work will be determined following the completion of revised Mineral Resource estimation for the Thackaringa deposits scheduled for May 2017
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 23
Criteria JORC Code Explanation Commentary
Geology a Deposit type geological setting and style of mineralisation
Regional Geological Setting a The Thackaringa project is located in a deformed and metamor-
phosed Proterozoic supracrustal succession named the Willyama Supergroup which crops out as several inliers in western New South Wales including the Broken Hill Block (Willis et al 1982)
a Exploration by BPL Limited has been focused on the discovery of cobaltiferous pyrite deposits and Broken Hill type base-metal mineralisation both of which are known from historical exploration in the district
a The project area covers portions of the Broken Hill and Thackaringa group successions which host the majority of mineralisation in the region including the Broken Hill base-metal deposit The Sundown Group suite is also present The extensive sequence of quartz-albite-plagioclase rock that hosts the cobaltiferous pyrite mineralisation is interpreted as belonging to the Himalaya Formation which is stratigraphically at the top of the Thackaringa Group
Local Geological Setting a The oldest rocks in the region belong to the Curnamona Craton
which outcrops on the Broken Hill and Euriowie blocks a The overlying Proterozoic rocks have been broadly subdivided
into three major groupings of which the oldest groups are the highly deformed metasediments and igneous derived rocks of the Thackaringa and Broken Hill groups They comprise a major part of the Willyama Supergroup and host the giant Broken Hill massive Pb-Zn-Ag sulphide ore body EL6622 is within the Broken Hill block of the Curnamona Craton
Mineralisation Style a The Thackaringa Mineral deposits (Pyrite Hill Big Hill and Railway)
are characterised by large tonnage cobaltiferous-pyrite minerali-sation hosted within siliceous albitic gneisses and schists of the Himalaya Formation
a Cobalt mineralisation exists within stratabound pyritic horizons where cobalt is present within the pyrite lattice Mineralogical studies have indicated the majority of cobalt (~85) is found in solid solution with primary pyrite (Henley 1998)
a A strong correlation between pyrite content and cobalt grade is observed
a The regional geological setting indicates additional mineralisation targets including
a Stratiform Broken Hill Type (BHT) Copper-Lead-Zinc-Silver deposits
a Copper-rich BHT deposits a Stratiform to stratabound Copper-Cobalt-Gold deposits a Epigenetic Gold and Base metal deposits
Drill hole Information
a A summary of all information mat- erial to the understanding of the exploration results including a tab- ulation of the following information for all Material drill holes
a easting and northing of the drill hole collar
a elevation or RL (Reduced Level ndash elevation above sea level in metres) of the drill hole collar
a dip and azimuth of the hole
a down hole length and interception depth
a See drill holle summaries below
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 24
Drill hole summaries
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
17THD01 Pyrite Hill 1242 MGA54 518382 6449551 28906 -40 222 DDH1
17THD02 Pyrite Hill 1497 MGA54 518475 6449445 29054 -40 258 DDH1
17THD03 Pyrite Hill 785 MGA54 518370 6449190 30328 -40 2851 DDH1
17THD04 Big Hill 1198 MGA54 521078 6449589 27841 -45 1551 DDH1
17THD05 Big Hill 995 MGA54 521669 6449889 2785 -40 131 DDH1
17THD06 Railway 1655 MGA54 521970 6450705 2872 -45 128 DDH1
17THD07 Railway 2746 MGA54 522569 6451282 27067 -45 1565 DDH1
17THD08 Railway 1325 MGA54 522784 6451280 268881 -45 326 DDH1
17THD09 Railway 1205 MGA54 522905 6451511 278471 -40 1525 DDH1
17THD10 Railway 842 MGA54 522992 6451569 279779 -45 130 DDH1
17THD11 Railway 1115 MGA54 523109 6451682 280847 -40 1605 DDH1
17THD12 Railway 1265 MGA54 522796 6451419 272936 -40 14075 DDH1
17THD13 Railway 1055 MGA54 522836 6451456 276747 -40 1385 DDH1
17THD14 Pyrite Hill 99 MGA54 518375 6449089 29425 -60 285 DDH1
17THR001 Railway 156 MGA54 522615 6451277 267561 -60 120 RC5
17THR002 Railway 160 MGA54 522573 6451299 268511 -60 120 RC5
17THR003 Railway 96 MGA54 522124 6450868 27739 -60 130 RC5
17THR004 Railway 150 MGA54 522387 6451319 271453 -60 120 RC5
17THR005 Railway 72 MGA54 522024 6450783 282154 -60 120 RC5
17THR006 Railway 114 MGA54 522049 6450780 28401 -58 125 RC5
17THR007 Railway 180 MGA54 521965 6450699 286585 -59 125 RC5
17THR008 Railway 132 MGA54 521917 6450562 291682 -56 105 RC5
17THR009 Railway 120 MGA54 521906 6450496 292751 -58 105 RC5
17THR010 Railway 72 MGA54 521959 6450398 286445 -56 285 RC5
17THR011 Railway 126 MGA54 522302 6451169 276812 -56 120 RC5
17THR012 Railway 180 MGA54 522440 6451304 274931 -58 173 RC5
17THR013 Big Hill 102 MGA54 521750 6449942 28489 -60 1305 RC5
17THR014 Big Hill 104 MGA54 521628 6449796 277545 -53 130 RC5
17THR015 Big Hill 108 MGA54 521793 6449918 284847 -58 310 RC5
17THR016 Pyrite Hill 138 MGA54 518446 6449209 290391 -57 283 RC5
17THR017 Pyrite Hill 120 MGA54 518449 6449263 293147 -56 2815 RC5
17THR018 Pyrite Hill 78 MGA54 518027 6449806 289567 -60 222 RC5
17THR019 Pyrite Hill 72 MGA54 518105 6449754 287701 -55 222 RC5
17THR020 Pyrite Hill 66 MGA54 518166 6449695 288685 -60 222 RC5
17THR021 Pyrite Hill 78 MGA54 518183 6449717 286007 -60 222 RC5
17THR022 Pyrite Hill 156 MGA54 518510 6449306 28682 -55 281 RC5
17THR023 Pyrite Hill 150 MGA54 518506 6449377 289481 -57 2645 RC5
17THR024 Pyrite Hill 150 MGA54 518457 6449498 288137 -595 2285 RC5
17THR025 Pyrite Hill 114 MGA54 518311 6449609 287463 -60 222 RC5
17THR026 Pyrite Hill 114 MGA54 518268 6449681 284164 -60 222 RC5
17THR027 Pyrite Hill 72 MGA54 518243 6449646 287176 -60 222 RC5
17THR028 Railway 150 MGA54 522457 6451167 300659 -60 350 RC5
17THR029 Railway 162 MGA54 522482 6451084 295964 -60 175 RC5
17THR030 Railway 138 MGA54 522783 6451423 270814 -55 140 RC5
17THR031 Railway 120 MGA54 522945 6451566 27619 -55 145 RC5
17THR032 Railway 132 MGA54 522819 6451473 273712 -53 140 RC5
17THR033 Railway 120 MGA54 522501 6451315 26963 -60 175 RC5
17THR034 Railway 132 MGA54 522321 6451214 275947 -55 127 RC5
17THR035 Railway 156 MGA54 522259 6451120 275749 -552 130 RC5
17THR036 Railway 92 MGA54 522186 6450998 275339 -612 130 RC5
17THR037 Railway 126 MGA54 522148 6450941 274202 -55 126 RC5
17THR038 Railway 168 MGA54 521927 6450619 289555 -55 108 RC5
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 25
Historic down-hole information
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
67TH01 Pyrite Hill 3042 MGA94_54 518564805 644946003 280643 -55 2606 DDH1
70TH02 Pyrite Hill 1486 MGA94_54 51827242 644968054 28408 -61 2186 DDH1
70TH03 Pyrite Hill 1414 MGA94_54 51844985 644921188 28981 -62 2836 DDH1
70BH01 Big Hill 1027 MGA94_54 52085056 64493085 28456 -47 3186 DDH1
70BH02 Big Hill 1039 MGA94_54 52078612 64492644 2801 -50 3186 DDH1
80PYH13 Pyrite Hill 77 MGA94_54 5183582 64490377 29035 -50 2807 DDH1
80PYH14 Pyrite Hill 3003 MGA94_54 51866118 644928762 27796 -60 2807 DDH1
80PYH03 Pyrite Hill 35 MGA94_54 5182515 64495699 2994 -60 2207 PDDH2 2280BGH09 Big Hill 1005 MGA94_54 52065743 644929252 27280 -50 1447 DDH1
80PYH01 Pyrite Hill 2453 MGA94_54 5182462 64495657 3011 -60 2027 PDDH2 680PYH02 Pyrite Hill 513 MGA94_54 5182607 64495742 2976 -60 2207 PDDH2 335880PYH04 Pyrite Hill 55 MGA94_54 51836655 644923174 30834 -60 2957 PDDH2 38780PYH05 Pyrite Hill 936 MGA94_54 51822697 644967819 28518 -49 2227 PDDH2 1880PYH06 Pyrite Hill 855 MGA94_54 51816348 64497573 28373 -544 2227 PDDH2 1880PYH07 Pyrite Hill 945 MGA94_54 51808406 644981836 28516 -55 2227 PDDH2 1280PYH08 Pyrite Hill 110 MGA94_54 51800954 644988543 28614 -60 2227 PDDH2 880PYH09 Pyrite Hill 1005 MGA94_54 5179174 644993176 28655 -485 2227 PDDH2 880PYH10 Pyrite Hill 1453 MGA94_54 51839296 644956596 28553 -50 2227 PDDH2 25580PYH11 Pyrite Hill 1031 MGA94_54 51844096 644932952 29725 -50 2807 PDDH2 1880PYH12 Pyrite Hill 1095 MGA94_54 51840728 644913731 29263 -50 2807 PDDH2 4280BGH05 Big Hill 5486 MGA94_54 52095535 644953441 28893 -60 1637 RCDDH3 45598TC01 Railway 100 MGA94_54 52275006 645133973 26727 -60 1589 RC5
98TC02 Railway 100 MGA94_54 52239241 645138683 26678 -60 1409 RC5
98TC03 Big Hill 84 MGA94_54 52081645 644936939 31305 -60 1359 RC5
98TC04 Big Hill 13825 MGA94_54 52086005 644945085 30409 -60 1409 RC5
98TC05 Big Hill 70 MGA94_54 520728 644932807 28863 -50 1229 RC5
98TC06 Big Hill 108 MGA94_54 520715 6449343 28513 -60 1259 RC5
98TC07 Big Hill 120 MGA94_54 52078597 644938821 29922 -50 1339 RC5
98TC08 Big Hill 90 MGA94_54 52080195 644947781 29101 -60 1509 RC5
98TC09 Big Hill 114 MGA94_54 52082221 644946079 29625 -60 1339 RC5
98TC10 Big Hill 134 MGA94_54 521018 6449576 2815 -50 1729 RC5
98TC11 Railway 35 MGA94_54 5224112 645137396 26701 -60 1329 RC5
80BGH06 Big Hill 6804 MGA94_54 520880 6449472 299 -60 1707 RCDDH3 5880BGH08 Big Hill 797 MGA94_54 52076879 644939093 29629 -60 1267 RCDDH3 69980BGH07 Big Hill 23 MGA94_54 52113656 6449599 27411 -60 1777 RC5
93MGM01 Pyrite Hill 70 MGA94_54 51818544 644971377 28628 -60 2228 RDDH4 2493MGM02 Pyrite Hill 180 MGA94_54 51851545 644945467 28479 -60 2588 RDDH4 4811PHR01 Pyrite Hill 150 MGA94_54 51843547 644907276 28534 -60 27906 RC5
11PHR02 Pyrite Hill 198 MGA94_54 51849992 644915931 28379 -60 27906 RC5
11PHR03 Pyrite Hill 240 MGA94_54 5185603 644918961 28026 -60 27906 RC5
11PHR04 Pyrite Hill 186 MGA94_54 51852863 6449257 28403 -60 27906 RC5
11PHR05 Pyrite Hill 234 MGA94_54 51858425 644939762 28022 -60 25906 RC5
11PHR06 Pyrite Hill 180 MGA94_54 5184909 644952259 28402 -60 23406 RC5
11PHR07 Pyrite Hill 174 MGA94_54 51841347 64495929 28286 -60 21906 RC5
11PHR08 Pyrite Hill 180 MGA94_54 51834274 644965585 28288 -60 21806 RC5
11PSR01 Pyrite Hill 59 MGA94_54 51874273 6448864 26838 -60 25806 RC5
11PSR02 Pyrite Hill 132 MGA94_54 51871938 644896001 27041 -60 25506 RC5
11PSR03 Pyrite Hill 78 MGA94_54 51868699 644905535 27279 -60 25506 RC5
12BER01 Railway 157 MGA94_54 52166731 644989323 27769 -60 141 RC5
12BER02 Railway 132 MGA94_54 52121267 644969067 27353 -60 162 RC5
12BER03 Railway 151 MGA94_54 52187901 645043547 28859 -60 102 RC5
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 26
Historic down-hole information (continued)
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
12BER04 Railway 148 MGA94_54 52235392 645126835 27435 -60 131 RC5
12BER05 Railway 145 MGA94_54 52243947 645116784 29973 -60 124 RC5
12BER06 Railway 169 MGA94_54 52248137 645109135 29595 -60 118 RC5
12BER07 Railway 115 MGA94_54 52232372 645074875 27791 -60 144 RC5
12BER08 Railway 193 MGA94_54 52222079 64508118 27316 -60 129 RC5
12BER09 Railway 13975 MGA94_54 52210125 645088144 27591 -60 129 RC5
12BER10 Railway 151 MGA94_54 52195345 645071618 28449 -60 129 RC5
12BER11 Railway 193 MGA94_54 52273722 645137661 26583 -60 153 RC5
12BER12 Railway 111 MGA94_54 52290973 645151676 27736 -60 153 RC5
12BER13 Railway 205 MGA94_54 52288381 645155754 27103 -60 156 RC5
12BER14 Railway 151 MGA94_54 52312483 645163707 28836 -60 152 RC5
12BER15 Railway 109 MGA94_54 5233113 64518417 28395 -60 154 RC5
12BER16 Railway 115 MGA94_54 52299408 645159199 27595 -60 156 RC5
12BER17 Railway 1155 MGA94_54 5225165 645131494 2691 -60 153 RC5
12BER18 Railway 157 MGA94_54 52233275 645128131 27229 -60 129 RC5
12BER19 Railway 97 MGA94_54 52224055 645106715 27616 -60 135 RC5
12BER20 Railway 120 MGA94_54 52129169 644973363 27695 -60 165 RC5
13BED01 Railway 3492 MGA94_54 52248021 645109243 29601 -60 3007 DDH1
16DM01 Pyrite Hill 1616 MGA94_54 51841138 644959389 28269 -60 2155 DDH1
16DM02 Pyrite Hill 1834 MGA94_54 51852662 644926158 28418 -60 2850 DDH1
16DM03 Big Hill 1265 MGA94_54 5210371 644956749 28301 -60 1585 DDH1
16DM04 Big Hill 1054 MGA94_54 52081474 64494644 29618 -55 1285 DDH1
16DM05 Railway 2465 MGA94_54 5221037 645088187 27662 -60 1285 DDH1
16DM06 Railway 1604 MGA94_54 52291157 645151913 2785 -60 1525 DDH1
16DM07 Railway 2425 MGA94_54 52299526 645159826 27636 -60 1561 DDH1
16DM08 Railway 2585 MGA94_54 52235145 645127307 27385 -60 1309 DDH1
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 27
Down hole length and interception depth ndash 2017 holes
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THD01 34 123 89 982 94 87
including 35 41 6 1143 119 106
and 50 55 5 1311 131 115
and 81 122 41 1366 118 11
17THD02 47 134 87 911 88 92
including 48 77 29 1238 111 114
and 116 134 18 1199 110 111
17THD03 40 635 235 894 116 108
including 49 63 14 1076 143 124
17THD04 20 29 9 1033 86 872 96 24 703 88 81
17THD05 44 60 16 993 98 85
including 44 56 12 1094 109 94
71 76 5 840 64 6317THD06 39 85 46 1136 114 101
including 40 70 30 1227 122 104
and 76 85 9 1148 107 100
17THD07 15 128 113 879 81 88
including 47 55 8 1048 117 103
and 61 102 41 1452 125 123
142 152 10 704 6 102199 204 5 706 49 65
17THR001 27 63 36 1075 106 104
including 37 63 26 1280 119 115
75 84 9 755 91 139
17THR002 37 43 6 711 69 82
91 136 45 983 98 105
including 102 136 34 1190 117 118
17THR003 4 59 55 937 93 94
including 10 46 36 1212 116 110
17THR004 49 146 97 888 102 102
including 51 113 62 1051 114 113
17THR005 52 72 20 1053 128 126
including 53 63 10 1145 125 130
17THR006 14 74 60 754 86 87
including 17 44 27 1176 125 121
17THR007 5 22 17 837 0 125
including 12 19 7 1049 0 105
128 154 26 1034 114 115
including 128 146 18 1321 144 143
17THR008 37 78 41 1319 122 11217THR009 29 65 36 957 94 92including 34 60 26 1150 111 102
100 105 5 833 129 12717THR010 51 57 6 729 49 5317THR011 30 83 53 1116 12 109
including 31 62 31 1423 155 135
17THR012 50 117 67 748 75 86
including 59 67 8 1084 103 126
and 75 102 27 1120 110 113
172 177 5 725 64 64
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 28
Down hole length and interception depth ndash 2017 holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THR013 19 73 54 888 54 5
including 19 29 10 2576 88 77
17THR014 12 45 33 749 81 74
including 25 33 8 1148 113 94
17THR015 40 48 8 995 89 8117THR016 66 115 49 1096 129 134
including 66 81 15 1184 142 139
and 89 114 25 1183 134 141
17THR017 54 112 58 1383 132 128
including 56 85 29 2042 183 158
17THR018 47 63 16 1124 151 14117THR019 42 59 17 1032 107 114
17THR020 29 49 20 1067 116 115
including 29 36 7 1352 135 126
17THR021 44 64 20 1204 131 12717THR022 101 138 37 1152 107 1217THR023 91 137 46 1271 139 133
including 91 97 6 1953 187 166
and 114 125 11 2707 311 265
17THR027 29 54 25 1176 126 118
including 30 47 17 1382 141 125
Down hole length and interception depth ndash historic holes
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
11PHR02 74 114 40 875 108 116
11PHR03 150 162 12 750 83 96
11PHR03 163 190 27 732 106 119
11PHR03 206 227 21 988 117 13
11PHR04 124 172 48 1049 128 129
11PHR05 197 219 22 1138 107 133
11PHR06 104 135 31 854 83 115
11PHR06 155 171 16 1315 12 122
11PHR07 96 147 51 941 95 99
11PHR08 103 115 12 1417 139 148
11PHR08 126 144 18 1048 126 142
12BER01 115 139 24 768 72 74
12BER02 18 25 7 1062 103 93
12BER02 113 123 10 907 85 86
12BER04 41 90 49 1191 114 127
12BER04 121 126 5 1241 9 112
12BER05 33 39 6 1109 79 92
12BER05 65 76 11 721 63 66
12BER06 131 169 38 844 83 128
12BER07 38 43 5 704 10 101
12BER09 33 92 59 841 9 116
12BER11 31 62 31 738 84 126
12BER11 92 159 67 1061 10 131
12BER11 173 193 20 737 67 83
12BER12 27 81 54 1430 181 189
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 29
Down hole length and interception depth ndash historic holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
12BER13 21 42 21 761 74 91
12BER13 65 75 10 1882 204 216
12BER14 28 55 27 1013 125 129
12BER16 25 100 75 1008 106 107
12BER17 92 99 7 739 6 63
12BER18 117 157 40 1017 112 114
12BER19 34 56 22 1151 104 108
12BER19 68 75 7 780 61 6
12BER20 21 46 25 731 69 75
13BED01 266 2915 255 872 85 78
16DM01 96 147 51 851 91 86
16DM02 127 172 45 1118 138 136
16DM03 104 111 7 838 103 9
16DM04 91 99 8 887 91 84
16DM05 30 103 73 793 82 9
16DM05 199 211 12 830 251 221
16DM06 28 84 56 1280 162 167
16DM06 138 146 8 722 78 112
16DM07 35 60 25 1232 111 111
16DM07 71 104 33 1224 133 134
16DM08 76 100 24 1026 11 12
16DM08 165 177 12 921 122 126
17THD01 34 123 89 982 94 87
17THD02 47 134 87 911 88 92
17THD03 40 635 235 894 116 108
17THD04 20 29 9 1033 86 8
17THD04 72 96 24 703 88 81
17THD05 44 60 16 993 98 85
17THD05 71 76 5 840 64 63
17THD06 39 85 46 1136 114 101
17THD07 15 128 113 879 81 88
17THD07 142 152 10 704 6 102
17THD07 199 204 5 706 49 65
17THR001 27 63 36 1075 106 104
17THR001 75 84 9 755 91 139
17THR002 37 43 6 711 69 82
17THR002 91 136 45 983 98 105
17THR003 4 59 55 937 93 94
17THR004 49 146 97 888 102 102
17THR005 52 72 20 1053 128 126
17THR006 14 74 60 754 86 87
17THR007 5 22 17 837 0 125
17THR007 128 154 26 1034 114 115
17THR008 37 78 41 1319 122 112
17THR009 29 65 36 957 94 92
17THR009 100 105 5 833 129 127
17THR010 51 57 6 729 49 53
17THR011 30 83 53 1116 12 109
17THR012 50 117 67 748 75 86
17THR012 172 177 5 725 64 64
17THR013 19 73 54 888 54 5
17THR014 12 45 33 749 81 74
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 30
Down hole length and interception depth ndash historic holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THR015 40 48 8 995 89 81
17THR016 66 115 49 1096 129 134
17THR017 54 112 58 1383 132 128
17THR018 47 63 16 1124 151 141
17THR019 42 59 17 1032 32 114
17THR020 29 49 20 1067 116 115
17THR021 44 64 20 1204 131 127
17THR022 101 138 37 1152 107 12
17THR023 91 137 46 1271 139 133
17THR027 29 54 25 1176 126 118
67TH01 12344 20001 7657 979 0 0
70BH01 3962 5334 1372 3323 31 0
70BH01 6431 8443 2012 1203 95 0
70BH02 7406 8686 128 704 75 0
70TH02 78 841 61 1666 175 154
70TH02 871 1021 15 1661 8 72
70TH03 777 1295 518 1016 129 132
80BGH05 39 49 10 752 0 0
80BGH06 18 6804 5004 969 0 0
80BGH08 44 7815 3415 939 0 0
80PYH01 75 17 95 725 0 0
80PYH02 341 4825 1415 1121 0 0
80PYH03 23 35 12 711 0 0
80PYH04 3975 55 1525 735 0 0
80PYH05 367 65 283 1160 118 0
80PYH06 54 62 8 905 0 0
80PYH07 67 794 124 1113 125 0
80PYH10 4845 1374 8895 831 86 0
80PYH11 346 465 119 916 8 0
80PYH11 572 9105 3385 1239 106 0
80PYH12 302 365 63 791 102 0
80PYH12 8515 908 565 857 146 0
80PYH14 2518 2734 216 1252 131 0
93MGM02 85 160 75 941 85 0
98TC01 20 47 27 744 91 126
98TC01 48 71 23 917 119 164
98TC03 34 45 11 1480 55 6
98TC03 68 79 11 1095 43 42
98TC04 84 94 10 966 39 4
98TC04 107 133 26 771 77 82
98TC05 24 62 38 754 64 7
98TC06 66 72 6 727 104 111
98TC06 76 101 25 767 101 106
98TC07 35 46 11 1546 165 171
98TC07 61 82 21 728 91 94
98TC09 32 39 7 716 49 174
98TC09 82 107 25 732 6 67
98TC10 101 125 24 732 79 8
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 31
Criteria JORC Code Explanation Commentary
Data aggregation methods
a In reporting Exploration Results weighting averaging techniques maximum andor minimum grade truncations (eg cutting of high grades) and cut-off grades are usually Material and should be stated
a Where aggregate intercepts incorporate short lengths of high grade results and longer lengths of low grade results the procedure used for such aggregation should be stated and some typical examples of such aggregations should be shown in detail
a The assumptions used for any reporting of metal equivalent values should be clearly stated
Drilling a Drill hole intercept grades are typically reported as down-hole
length-weighted averages with any non-recovered sample within the reported intervals treated as no grade The cut-off used for selecting significant intersections is selected to reflect the overall tenor of mineralisation in most cases 500ppm cobalt
a No top cuts have been applied when calculating average grades for reported significant intersections
a No metal equivalent values are reported
Relationship between mineralis- ation widths and intercept lengths
a These relationships are particularly important in the reporting of Exploration Results
a If the geometry of the mineralisation with respect to the drillhole angle is known its nature should be reported
a If it is not known and only the down hole lengths are reported there should be a clear statement to this effect (eg lsquodown hole length true width not knownrsquo)
a Drill holes at the Thackaringa project are typically angled at 50deg or 60deg and drilled perpendicular to the mineralised trend with drilling orientations adjusted along strike to accommodate folded geological sequences
a Mineralisation at the Big Hill and Railway prospects is steeply dipping and consequently mineralised intersections will be greater than true width At Pyrite Hill mineralisation is gently dipping and mineralised intersections will be close to true width
a There is insufficient geological knowledge to accurately estimate true widths and as such all drill intersections are reported as down hole lengths
Diagrams a Appropriate maps and sections (with scales) and tabulations of intercepts should be included for any significant discovery being reported These should include but not be limited to a plan view of drill hole collar locations and appropriate sectional views
a Appropriate maps and sections are presented in the accompa-nying ASX release
Balanced reporting
a Where comprehensive reporting of all exploration results is not practicable representative reporting of both low and high grades andor widths should be practiced to avoid misleading reporting of Exploration Results
a Only mineralised drill hole intersections regarded as highly anomalous and of economic interest are reported The proportion of each hole represented by the reported intervals can be ascertained from the sum of the reported intervals divided by the total drill hole depth
a All assay results for drill holes included in the various Mineral Resource estimates have been considered and comprise results not necessarily regarded as anomalous
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 32
Criteria JORC Code Explanation Commentary
Other substantive exploration data
a Other exploration data if meaningful and material should be reported including (but not limited to) geological obser-vations geophysical survey results geochemical survey results bulk samples ndash size and method of treatment metallurgical test results bulk density groun d- water geotechnical and rock characteristics potential deleterious or contaminating substances
a No further exploration data is deemed material to the results presented in this release
Further work a The nature and scale of planned further work (eg tests for lateral extensions or depth extensions or large-scale step-out drilling)
a Diagrams clearly highlighting the areas of possible extensions including the main geological interpretations and future drilling areas provided this information is not commercially sensitive
a The nature and scale of planned further work will be determined following the completion of revised Mineral Resource estimation for the Thackaringa deposits scheduled for May 2017
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 24
Drill hole summaries
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
17THD01 Pyrite Hill 1242 MGA54 518382 6449551 28906 -40 222 DDH1
17THD02 Pyrite Hill 1497 MGA54 518475 6449445 29054 -40 258 DDH1
17THD03 Pyrite Hill 785 MGA54 518370 6449190 30328 -40 2851 DDH1
17THD04 Big Hill 1198 MGA54 521078 6449589 27841 -45 1551 DDH1
17THD05 Big Hill 995 MGA54 521669 6449889 2785 -40 131 DDH1
17THD06 Railway 1655 MGA54 521970 6450705 2872 -45 128 DDH1
17THD07 Railway 2746 MGA54 522569 6451282 27067 -45 1565 DDH1
17THD08 Railway 1325 MGA54 522784 6451280 268881 -45 326 DDH1
17THD09 Railway 1205 MGA54 522905 6451511 278471 -40 1525 DDH1
17THD10 Railway 842 MGA54 522992 6451569 279779 -45 130 DDH1
17THD11 Railway 1115 MGA54 523109 6451682 280847 -40 1605 DDH1
17THD12 Railway 1265 MGA54 522796 6451419 272936 -40 14075 DDH1
17THD13 Railway 1055 MGA54 522836 6451456 276747 -40 1385 DDH1
17THD14 Pyrite Hill 99 MGA54 518375 6449089 29425 -60 285 DDH1
17THR001 Railway 156 MGA54 522615 6451277 267561 -60 120 RC5
17THR002 Railway 160 MGA54 522573 6451299 268511 -60 120 RC5
17THR003 Railway 96 MGA54 522124 6450868 27739 -60 130 RC5
17THR004 Railway 150 MGA54 522387 6451319 271453 -60 120 RC5
17THR005 Railway 72 MGA54 522024 6450783 282154 -60 120 RC5
17THR006 Railway 114 MGA54 522049 6450780 28401 -58 125 RC5
17THR007 Railway 180 MGA54 521965 6450699 286585 -59 125 RC5
17THR008 Railway 132 MGA54 521917 6450562 291682 -56 105 RC5
17THR009 Railway 120 MGA54 521906 6450496 292751 -58 105 RC5
17THR010 Railway 72 MGA54 521959 6450398 286445 -56 285 RC5
17THR011 Railway 126 MGA54 522302 6451169 276812 -56 120 RC5
17THR012 Railway 180 MGA54 522440 6451304 274931 -58 173 RC5
17THR013 Big Hill 102 MGA54 521750 6449942 28489 -60 1305 RC5
17THR014 Big Hill 104 MGA54 521628 6449796 277545 -53 130 RC5
17THR015 Big Hill 108 MGA54 521793 6449918 284847 -58 310 RC5
17THR016 Pyrite Hill 138 MGA54 518446 6449209 290391 -57 283 RC5
17THR017 Pyrite Hill 120 MGA54 518449 6449263 293147 -56 2815 RC5
17THR018 Pyrite Hill 78 MGA54 518027 6449806 289567 -60 222 RC5
17THR019 Pyrite Hill 72 MGA54 518105 6449754 287701 -55 222 RC5
17THR020 Pyrite Hill 66 MGA54 518166 6449695 288685 -60 222 RC5
17THR021 Pyrite Hill 78 MGA54 518183 6449717 286007 -60 222 RC5
17THR022 Pyrite Hill 156 MGA54 518510 6449306 28682 -55 281 RC5
17THR023 Pyrite Hill 150 MGA54 518506 6449377 289481 -57 2645 RC5
17THR024 Pyrite Hill 150 MGA54 518457 6449498 288137 -595 2285 RC5
17THR025 Pyrite Hill 114 MGA54 518311 6449609 287463 -60 222 RC5
17THR026 Pyrite Hill 114 MGA54 518268 6449681 284164 -60 222 RC5
17THR027 Pyrite Hill 72 MGA54 518243 6449646 287176 -60 222 RC5
17THR028 Railway 150 MGA54 522457 6451167 300659 -60 350 RC5
17THR029 Railway 162 MGA54 522482 6451084 295964 -60 175 RC5
17THR030 Railway 138 MGA54 522783 6451423 270814 -55 140 RC5
17THR031 Railway 120 MGA54 522945 6451566 27619 -55 145 RC5
17THR032 Railway 132 MGA54 522819 6451473 273712 -53 140 RC5
17THR033 Railway 120 MGA54 522501 6451315 26963 -60 175 RC5
17THR034 Railway 132 MGA54 522321 6451214 275947 -55 127 RC5
17THR035 Railway 156 MGA54 522259 6451120 275749 -552 130 RC5
17THR036 Railway 92 MGA54 522186 6450998 275339 -612 130 RC5
17THR037 Railway 126 MGA54 522148 6450941 274202 -55 126 RC5
17THR038 Railway 168 MGA54 521927 6450619 289555 -55 108 RC5
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 25
Historic down-hole information
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
67TH01 Pyrite Hill 3042 MGA94_54 518564805 644946003 280643 -55 2606 DDH1
70TH02 Pyrite Hill 1486 MGA94_54 51827242 644968054 28408 -61 2186 DDH1
70TH03 Pyrite Hill 1414 MGA94_54 51844985 644921188 28981 -62 2836 DDH1
70BH01 Big Hill 1027 MGA94_54 52085056 64493085 28456 -47 3186 DDH1
70BH02 Big Hill 1039 MGA94_54 52078612 64492644 2801 -50 3186 DDH1
80PYH13 Pyrite Hill 77 MGA94_54 5183582 64490377 29035 -50 2807 DDH1
80PYH14 Pyrite Hill 3003 MGA94_54 51866118 644928762 27796 -60 2807 DDH1
80PYH03 Pyrite Hill 35 MGA94_54 5182515 64495699 2994 -60 2207 PDDH2 2280BGH09 Big Hill 1005 MGA94_54 52065743 644929252 27280 -50 1447 DDH1
80PYH01 Pyrite Hill 2453 MGA94_54 5182462 64495657 3011 -60 2027 PDDH2 680PYH02 Pyrite Hill 513 MGA94_54 5182607 64495742 2976 -60 2207 PDDH2 335880PYH04 Pyrite Hill 55 MGA94_54 51836655 644923174 30834 -60 2957 PDDH2 38780PYH05 Pyrite Hill 936 MGA94_54 51822697 644967819 28518 -49 2227 PDDH2 1880PYH06 Pyrite Hill 855 MGA94_54 51816348 64497573 28373 -544 2227 PDDH2 1880PYH07 Pyrite Hill 945 MGA94_54 51808406 644981836 28516 -55 2227 PDDH2 1280PYH08 Pyrite Hill 110 MGA94_54 51800954 644988543 28614 -60 2227 PDDH2 880PYH09 Pyrite Hill 1005 MGA94_54 5179174 644993176 28655 -485 2227 PDDH2 880PYH10 Pyrite Hill 1453 MGA94_54 51839296 644956596 28553 -50 2227 PDDH2 25580PYH11 Pyrite Hill 1031 MGA94_54 51844096 644932952 29725 -50 2807 PDDH2 1880PYH12 Pyrite Hill 1095 MGA94_54 51840728 644913731 29263 -50 2807 PDDH2 4280BGH05 Big Hill 5486 MGA94_54 52095535 644953441 28893 -60 1637 RCDDH3 45598TC01 Railway 100 MGA94_54 52275006 645133973 26727 -60 1589 RC5
98TC02 Railway 100 MGA94_54 52239241 645138683 26678 -60 1409 RC5
98TC03 Big Hill 84 MGA94_54 52081645 644936939 31305 -60 1359 RC5
98TC04 Big Hill 13825 MGA94_54 52086005 644945085 30409 -60 1409 RC5
98TC05 Big Hill 70 MGA94_54 520728 644932807 28863 -50 1229 RC5
98TC06 Big Hill 108 MGA94_54 520715 6449343 28513 -60 1259 RC5
98TC07 Big Hill 120 MGA94_54 52078597 644938821 29922 -50 1339 RC5
98TC08 Big Hill 90 MGA94_54 52080195 644947781 29101 -60 1509 RC5
98TC09 Big Hill 114 MGA94_54 52082221 644946079 29625 -60 1339 RC5
98TC10 Big Hill 134 MGA94_54 521018 6449576 2815 -50 1729 RC5
98TC11 Railway 35 MGA94_54 5224112 645137396 26701 -60 1329 RC5
80BGH06 Big Hill 6804 MGA94_54 520880 6449472 299 -60 1707 RCDDH3 5880BGH08 Big Hill 797 MGA94_54 52076879 644939093 29629 -60 1267 RCDDH3 69980BGH07 Big Hill 23 MGA94_54 52113656 6449599 27411 -60 1777 RC5
93MGM01 Pyrite Hill 70 MGA94_54 51818544 644971377 28628 -60 2228 RDDH4 2493MGM02 Pyrite Hill 180 MGA94_54 51851545 644945467 28479 -60 2588 RDDH4 4811PHR01 Pyrite Hill 150 MGA94_54 51843547 644907276 28534 -60 27906 RC5
11PHR02 Pyrite Hill 198 MGA94_54 51849992 644915931 28379 -60 27906 RC5
11PHR03 Pyrite Hill 240 MGA94_54 5185603 644918961 28026 -60 27906 RC5
11PHR04 Pyrite Hill 186 MGA94_54 51852863 6449257 28403 -60 27906 RC5
11PHR05 Pyrite Hill 234 MGA94_54 51858425 644939762 28022 -60 25906 RC5
11PHR06 Pyrite Hill 180 MGA94_54 5184909 644952259 28402 -60 23406 RC5
11PHR07 Pyrite Hill 174 MGA94_54 51841347 64495929 28286 -60 21906 RC5
11PHR08 Pyrite Hill 180 MGA94_54 51834274 644965585 28288 -60 21806 RC5
11PSR01 Pyrite Hill 59 MGA94_54 51874273 6448864 26838 -60 25806 RC5
11PSR02 Pyrite Hill 132 MGA94_54 51871938 644896001 27041 -60 25506 RC5
11PSR03 Pyrite Hill 78 MGA94_54 51868699 644905535 27279 -60 25506 RC5
12BER01 Railway 157 MGA94_54 52166731 644989323 27769 -60 141 RC5
12BER02 Railway 132 MGA94_54 52121267 644969067 27353 -60 162 RC5
12BER03 Railway 151 MGA94_54 52187901 645043547 28859 -60 102 RC5
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 26
Historic down-hole information (continued)
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
12BER04 Railway 148 MGA94_54 52235392 645126835 27435 -60 131 RC5
12BER05 Railway 145 MGA94_54 52243947 645116784 29973 -60 124 RC5
12BER06 Railway 169 MGA94_54 52248137 645109135 29595 -60 118 RC5
12BER07 Railway 115 MGA94_54 52232372 645074875 27791 -60 144 RC5
12BER08 Railway 193 MGA94_54 52222079 64508118 27316 -60 129 RC5
12BER09 Railway 13975 MGA94_54 52210125 645088144 27591 -60 129 RC5
12BER10 Railway 151 MGA94_54 52195345 645071618 28449 -60 129 RC5
12BER11 Railway 193 MGA94_54 52273722 645137661 26583 -60 153 RC5
12BER12 Railway 111 MGA94_54 52290973 645151676 27736 -60 153 RC5
12BER13 Railway 205 MGA94_54 52288381 645155754 27103 -60 156 RC5
12BER14 Railway 151 MGA94_54 52312483 645163707 28836 -60 152 RC5
12BER15 Railway 109 MGA94_54 5233113 64518417 28395 -60 154 RC5
12BER16 Railway 115 MGA94_54 52299408 645159199 27595 -60 156 RC5
12BER17 Railway 1155 MGA94_54 5225165 645131494 2691 -60 153 RC5
12BER18 Railway 157 MGA94_54 52233275 645128131 27229 -60 129 RC5
12BER19 Railway 97 MGA94_54 52224055 645106715 27616 -60 135 RC5
12BER20 Railway 120 MGA94_54 52129169 644973363 27695 -60 165 RC5
13BED01 Railway 3492 MGA94_54 52248021 645109243 29601 -60 3007 DDH1
16DM01 Pyrite Hill 1616 MGA94_54 51841138 644959389 28269 -60 2155 DDH1
16DM02 Pyrite Hill 1834 MGA94_54 51852662 644926158 28418 -60 2850 DDH1
16DM03 Big Hill 1265 MGA94_54 5210371 644956749 28301 -60 1585 DDH1
16DM04 Big Hill 1054 MGA94_54 52081474 64494644 29618 -55 1285 DDH1
16DM05 Railway 2465 MGA94_54 5221037 645088187 27662 -60 1285 DDH1
16DM06 Railway 1604 MGA94_54 52291157 645151913 2785 -60 1525 DDH1
16DM07 Railway 2425 MGA94_54 52299526 645159826 27636 -60 1561 DDH1
16DM08 Railway 2585 MGA94_54 52235145 645127307 27385 -60 1309 DDH1
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 27
Down hole length and interception depth ndash 2017 holes
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THD01 34 123 89 982 94 87
including 35 41 6 1143 119 106
and 50 55 5 1311 131 115
and 81 122 41 1366 118 11
17THD02 47 134 87 911 88 92
including 48 77 29 1238 111 114
and 116 134 18 1199 110 111
17THD03 40 635 235 894 116 108
including 49 63 14 1076 143 124
17THD04 20 29 9 1033 86 872 96 24 703 88 81
17THD05 44 60 16 993 98 85
including 44 56 12 1094 109 94
71 76 5 840 64 6317THD06 39 85 46 1136 114 101
including 40 70 30 1227 122 104
and 76 85 9 1148 107 100
17THD07 15 128 113 879 81 88
including 47 55 8 1048 117 103
and 61 102 41 1452 125 123
142 152 10 704 6 102199 204 5 706 49 65
17THR001 27 63 36 1075 106 104
including 37 63 26 1280 119 115
75 84 9 755 91 139
17THR002 37 43 6 711 69 82
91 136 45 983 98 105
including 102 136 34 1190 117 118
17THR003 4 59 55 937 93 94
including 10 46 36 1212 116 110
17THR004 49 146 97 888 102 102
including 51 113 62 1051 114 113
17THR005 52 72 20 1053 128 126
including 53 63 10 1145 125 130
17THR006 14 74 60 754 86 87
including 17 44 27 1176 125 121
17THR007 5 22 17 837 0 125
including 12 19 7 1049 0 105
128 154 26 1034 114 115
including 128 146 18 1321 144 143
17THR008 37 78 41 1319 122 11217THR009 29 65 36 957 94 92including 34 60 26 1150 111 102
100 105 5 833 129 12717THR010 51 57 6 729 49 5317THR011 30 83 53 1116 12 109
including 31 62 31 1423 155 135
17THR012 50 117 67 748 75 86
including 59 67 8 1084 103 126
and 75 102 27 1120 110 113
172 177 5 725 64 64
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 28
Down hole length and interception depth ndash 2017 holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THR013 19 73 54 888 54 5
including 19 29 10 2576 88 77
17THR014 12 45 33 749 81 74
including 25 33 8 1148 113 94
17THR015 40 48 8 995 89 8117THR016 66 115 49 1096 129 134
including 66 81 15 1184 142 139
and 89 114 25 1183 134 141
17THR017 54 112 58 1383 132 128
including 56 85 29 2042 183 158
17THR018 47 63 16 1124 151 14117THR019 42 59 17 1032 107 114
17THR020 29 49 20 1067 116 115
including 29 36 7 1352 135 126
17THR021 44 64 20 1204 131 12717THR022 101 138 37 1152 107 1217THR023 91 137 46 1271 139 133
including 91 97 6 1953 187 166
and 114 125 11 2707 311 265
17THR027 29 54 25 1176 126 118
including 30 47 17 1382 141 125
Down hole length and interception depth ndash historic holes
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
11PHR02 74 114 40 875 108 116
11PHR03 150 162 12 750 83 96
11PHR03 163 190 27 732 106 119
11PHR03 206 227 21 988 117 13
11PHR04 124 172 48 1049 128 129
11PHR05 197 219 22 1138 107 133
11PHR06 104 135 31 854 83 115
11PHR06 155 171 16 1315 12 122
11PHR07 96 147 51 941 95 99
11PHR08 103 115 12 1417 139 148
11PHR08 126 144 18 1048 126 142
12BER01 115 139 24 768 72 74
12BER02 18 25 7 1062 103 93
12BER02 113 123 10 907 85 86
12BER04 41 90 49 1191 114 127
12BER04 121 126 5 1241 9 112
12BER05 33 39 6 1109 79 92
12BER05 65 76 11 721 63 66
12BER06 131 169 38 844 83 128
12BER07 38 43 5 704 10 101
12BER09 33 92 59 841 9 116
12BER11 31 62 31 738 84 126
12BER11 92 159 67 1061 10 131
12BER11 173 193 20 737 67 83
12BER12 27 81 54 1430 181 189
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 29
Down hole length and interception depth ndash historic holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
12BER13 21 42 21 761 74 91
12BER13 65 75 10 1882 204 216
12BER14 28 55 27 1013 125 129
12BER16 25 100 75 1008 106 107
12BER17 92 99 7 739 6 63
12BER18 117 157 40 1017 112 114
12BER19 34 56 22 1151 104 108
12BER19 68 75 7 780 61 6
12BER20 21 46 25 731 69 75
13BED01 266 2915 255 872 85 78
16DM01 96 147 51 851 91 86
16DM02 127 172 45 1118 138 136
16DM03 104 111 7 838 103 9
16DM04 91 99 8 887 91 84
16DM05 30 103 73 793 82 9
16DM05 199 211 12 830 251 221
16DM06 28 84 56 1280 162 167
16DM06 138 146 8 722 78 112
16DM07 35 60 25 1232 111 111
16DM07 71 104 33 1224 133 134
16DM08 76 100 24 1026 11 12
16DM08 165 177 12 921 122 126
17THD01 34 123 89 982 94 87
17THD02 47 134 87 911 88 92
17THD03 40 635 235 894 116 108
17THD04 20 29 9 1033 86 8
17THD04 72 96 24 703 88 81
17THD05 44 60 16 993 98 85
17THD05 71 76 5 840 64 63
17THD06 39 85 46 1136 114 101
17THD07 15 128 113 879 81 88
17THD07 142 152 10 704 6 102
17THD07 199 204 5 706 49 65
17THR001 27 63 36 1075 106 104
17THR001 75 84 9 755 91 139
17THR002 37 43 6 711 69 82
17THR002 91 136 45 983 98 105
17THR003 4 59 55 937 93 94
17THR004 49 146 97 888 102 102
17THR005 52 72 20 1053 128 126
17THR006 14 74 60 754 86 87
17THR007 5 22 17 837 0 125
17THR007 128 154 26 1034 114 115
17THR008 37 78 41 1319 122 112
17THR009 29 65 36 957 94 92
17THR009 100 105 5 833 129 127
17THR010 51 57 6 729 49 53
17THR011 30 83 53 1116 12 109
17THR012 50 117 67 748 75 86
17THR012 172 177 5 725 64 64
17THR013 19 73 54 888 54 5
17THR014 12 45 33 749 81 74
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 30
Down hole length and interception depth ndash historic holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THR015 40 48 8 995 89 81
17THR016 66 115 49 1096 129 134
17THR017 54 112 58 1383 132 128
17THR018 47 63 16 1124 151 141
17THR019 42 59 17 1032 32 114
17THR020 29 49 20 1067 116 115
17THR021 44 64 20 1204 131 127
17THR022 101 138 37 1152 107 12
17THR023 91 137 46 1271 139 133
17THR027 29 54 25 1176 126 118
67TH01 12344 20001 7657 979 0 0
70BH01 3962 5334 1372 3323 31 0
70BH01 6431 8443 2012 1203 95 0
70BH02 7406 8686 128 704 75 0
70TH02 78 841 61 1666 175 154
70TH02 871 1021 15 1661 8 72
70TH03 777 1295 518 1016 129 132
80BGH05 39 49 10 752 0 0
80BGH06 18 6804 5004 969 0 0
80BGH08 44 7815 3415 939 0 0
80PYH01 75 17 95 725 0 0
80PYH02 341 4825 1415 1121 0 0
80PYH03 23 35 12 711 0 0
80PYH04 3975 55 1525 735 0 0
80PYH05 367 65 283 1160 118 0
80PYH06 54 62 8 905 0 0
80PYH07 67 794 124 1113 125 0
80PYH10 4845 1374 8895 831 86 0
80PYH11 346 465 119 916 8 0
80PYH11 572 9105 3385 1239 106 0
80PYH12 302 365 63 791 102 0
80PYH12 8515 908 565 857 146 0
80PYH14 2518 2734 216 1252 131 0
93MGM02 85 160 75 941 85 0
98TC01 20 47 27 744 91 126
98TC01 48 71 23 917 119 164
98TC03 34 45 11 1480 55 6
98TC03 68 79 11 1095 43 42
98TC04 84 94 10 966 39 4
98TC04 107 133 26 771 77 82
98TC05 24 62 38 754 64 7
98TC06 66 72 6 727 104 111
98TC06 76 101 25 767 101 106
98TC07 35 46 11 1546 165 171
98TC07 61 82 21 728 91 94
98TC09 32 39 7 716 49 174
98TC09 82 107 25 732 6 67
98TC10 101 125 24 732 79 8
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 31
Criteria JORC Code Explanation Commentary
Data aggregation methods
a In reporting Exploration Results weighting averaging techniques maximum andor minimum grade truncations (eg cutting of high grades) and cut-off grades are usually Material and should be stated
a Where aggregate intercepts incorporate short lengths of high grade results and longer lengths of low grade results the procedure used for such aggregation should be stated and some typical examples of such aggregations should be shown in detail
a The assumptions used for any reporting of metal equivalent values should be clearly stated
Drilling a Drill hole intercept grades are typically reported as down-hole
length-weighted averages with any non-recovered sample within the reported intervals treated as no grade The cut-off used for selecting significant intersections is selected to reflect the overall tenor of mineralisation in most cases 500ppm cobalt
a No top cuts have been applied when calculating average grades for reported significant intersections
a No metal equivalent values are reported
Relationship between mineralis- ation widths and intercept lengths
a These relationships are particularly important in the reporting of Exploration Results
a If the geometry of the mineralisation with respect to the drillhole angle is known its nature should be reported
a If it is not known and only the down hole lengths are reported there should be a clear statement to this effect (eg lsquodown hole length true width not knownrsquo)
a Drill holes at the Thackaringa project are typically angled at 50deg or 60deg and drilled perpendicular to the mineralised trend with drilling orientations adjusted along strike to accommodate folded geological sequences
a Mineralisation at the Big Hill and Railway prospects is steeply dipping and consequently mineralised intersections will be greater than true width At Pyrite Hill mineralisation is gently dipping and mineralised intersections will be close to true width
a There is insufficient geological knowledge to accurately estimate true widths and as such all drill intersections are reported as down hole lengths
Diagrams a Appropriate maps and sections (with scales) and tabulations of intercepts should be included for any significant discovery being reported These should include but not be limited to a plan view of drill hole collar locations and appropriate sectional views
a Appropriate maps and sections are presented in the accompa-nying ASX release
Balanced reporting
a Where comprehensive reporting of all exploration results is not practicable representative reporting of both low and high grades andor widths should be practiced to avoid misleading reporting of Exploration Results
a Only mineralised drill hole intersections regarded as highly anomalous and of economic interest are reported The proportion of each hole represented by the reported intervals can be ascertained from the sum of the reported intervals divided by the total drill hole depth
a All assay results for drill holes included in the various Mineral Resource estimates have been considered and comprise results not necessarily regarded as anomalous
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 32
Criteria JORC Code Explanation Commentary
Other substantive exploration data
a Other exploration data if meaningful and material should be reported including (but not limited to) geological obser-vations geophysical survey results geochemical survey results bulk samples ndash size and method of treatment metallurgical test results bulk density groun d- water geotechnical and rock characteristics potential deleterious or contaminating substances
a No further exploration data is deemed material to the results presented in this release
Further work a The nature and scale of planned further work (eg tests for lateral extensions or depth extensions or large-scale step-out drilling)
a Diagrams clearly highlighting the areas of possible extensions including the main geological interpretations and future drilling areas provided this information is not commercially sensitive
a The nature and scale of planned further work will be determined following the completion of revised Mineral Resource estimation for the Thackaringa deposits scheduled for May 2017
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 25
Historic down-hole information
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
67TH01 Pyrite Hill 3042 MGA94_54 518564805 644946003 280643 -55 2606 DDH1
70TH02 Pyrite Hill 1486 MGA94_54 51827242 644968054 28408 -61 2186 DDH1
70TH03 Pyrite Hill 1414 MGA94_54 51844985 644921188 28981 -62 2836 DDH1
70BH01 Big Hill 1027 MGA94_54 52085056 64493085 28456 -47 3186 DDH1
70BH02 Big Hill 1039 MGA94_54 52078612 64492644 2801 -50 3186 DDH1
80PYH13 Pyrite Hill 77 MGA94_54 5183582 64490377 29035 -50 2807 DDH1
80PYH14 Pyrite Hill 3003 MGA94_54 51866118 644928762 27796 -60 2807 DDH1
80PYH03 Pyrite Hill 35 MGA94_54 5182515 64495699 2994 -60 2207 PDDH2 2280BGH09 Big Hill 1005 MGA94_54 52065743 644929252 27280 -50 1447 DDH1
80PYH01 Pyrite Hill 2453 MGA94_54 5182462 64495657 3011 -60 2027 PDDH2 680PYH02 Pyrite Hill 513 MGA94_54 5182607 64495742 2976 -60 2207 PDDH2 335880PYH04 Pyrite Hill 55 MGA94_54 51836655 644923174 30834 -60 2957 PDDH2 38780PYH05 Pyrite Hill 936 MGA94_54 51822697 644967819 28518 -49 2227 PDDH2 1880PYH06 Pyrite Hill 855 MGA94_54 51816348 64497573 28373 -544 2227 PDDH2 1880PYH07 Pyrite Hill 945 MGA94_54 51808406 644981836 28516 -55 2227 PDDH2 1280PYH08 Pyrite Hill 110 MGA94_54 51800954 644988543 28614 -60 2227 PDDH2 880PYH09 Pyrite Hill 1005 MGA94_54 5179174 644993176 28655 -485 2227 PDDH2 880PYH10 Pyrite Hill 1453 MGA94_54 51839296 644956596 28553 -50 2227 PDDH2 25580PYH11 Pyrite Hill 1031 MGA94_54 51844096 644932952 29725 -50 2807 PDDH2 1880PYH12 Pyrite Hill 1095 MGA94_54 51840728 644913731 29263 -50 2807 PDDH2 4280BGH05 Big Hill 5486 MGA94_54 52095535 644953441 28893 -60 1637 RCDDH3 45598TC01 Railway 100 MGA94_54 52275006 645133973 26727 -60 1589 RC5
98TC02 Railway 100 MGA94_54 52239241 645138683 26678 -60 1409 RC5
98TC03 Big Hill 84 MGA94_54 52081645 644936939 31305 -60 1359 RC5
98TC04 Big Hill 13825 MGA94_54 52086005 644945085 30409 -60 1409 RC5
98TC05 Big Hill 70 MGA94_54 520728 644932807 28863 -50 1229 RC5
98TC06 Big Hill 108 MGA94_54 520715 6449343 28513 -60 1259 RC5
98TC07 Big Hill 120 MGA94_54 52078597 644938821 29922 -50 1339 RC5
98TC08 Big Hill 90 MGA94_54 52080195 644947781 29101 -60 1509 RC5
98TC09 Big Hill 114 MGA94_54 52082221 644946079 29625 -60 1339 RC5
98TC10 Big Hill 134 MGA94_54 521018 6449576 2815 -50 1729 RC5
98TC11 Railway 35 MGA94_54 5224112 645137396 26701 -60 1329 RC5
80BGH06 Big Hill 6804 MGA94_54 520880 6449472 299 -60 1707 RCDDH3 5880BGH08 Big Hill 797 MGA94_54 52076879 644939093 29629 -60 1267 RCDDH3 69980BGH07 Big Hill 23 MGA94_54 52113656 6449599 27411 -60 1777 RC5
93MGM01 Pyrite Hill 70 MGA94_54 51818544 644971377 28628 -60 2228 RDDH4 2493MGM02 Pyrite Hill 180 MGA94_54 51851545 644945467 28479 -60 2588 RDDH4 4811PHR01 Pyrite Hill 150 MGA94_54 51843547 644907276 28534 -60 27906 RC5
11PHR02 Pyrite Hill 198 MGA94_54 51849992 644915931 28379 -60 27906 RC5
11PHR03 Pyrite Hill 240 MGA94_54 5185603 644918961 28026 -60 27906 RC5
11PHR04 Pyrite Hill 186 MGA94_54 51852863 6449257 28403 -60 27906 RC5
11PHR05 Pyrite Hill 234 MGA94_54 51858425 644939762 28022 -60 25906 RC5
11PHR06 Pyrite Hill 180 MGA94_54 5184909 644952259 28402 -60 23406 RC5
11PHR07 Pyrite Hill 174 MGA94_54 51841347 64495929 28286 -60 21906 RC5
11PHR08 Pyrite Hill 180 MGA94_54 51834274 644965585 28288 -60 21806 RC5
11PSR01 Pyrite Hill 59 MGA94_54 51874273 6448864 26838 -60 25806 RC5
11PSR02 Pyrite Hill 132 MGA94_54 51871938 644896001 27041 -60 25506 RC5
11PSR03 Pyrite Hill 78 MGA94_54 51868699 644905535 27279 -60 25506 RC5
12BER01 Railway 157 MGA94_54 52166731 644989323 27769 -60 141 RC5
12BER02 Railway 132 MGA94_54 52121267 644969067 27353 -60 162 RC5
12BER03 Railway 151 MGA94_54 52187901 645043547 28859 -60 102 RC5
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 26
Historic down-hole information (continued)
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
12BER04 Railway 148 MGA94_54 52235392 645126835 27435 -60 131 RC5
12BER05 Railway 145 MGA94_54 52243947 645116784 29973 -60 124 RC5
12BER06 Railway 169 MGA94_54 52248137 645109135 29595 -60 118 RC5
12BER07 Railway 115 MGA94_54 52232372 645074875 27791 -60 144 RC5
12BER08 Railway 193 MGA94_54 52222079 64508118 27316 -60 129 RC5
12BER09 Railway 13975 MGA94_54 52210125 645088144 27591 -60 129 RC5
12BER10 Railway 151 MGA94_54 52195345 645071618 28449 -60 129 RC5
12BER11 Railway 193 MGA94_54 52273722 645137661 26583 -60 153 RC5
12BER12 Railway 111 MGA94_54 52290973 645151676 27736 -60 153 RC5
12BER13 Railway 205 MGA94_54 52288381 645155754 27103 -60 156 RC5
12BER14 Railway 151 MGA94_54 52312483 645163707 28836 -60 152 RC5
12BER15 Railway 109 MGA94_54 5233113 64518417 28395 -60 154 RC5
12BER16 Railway 115 MGA94_54 52299408 645159199 27595 -60 156 RC5
12BER17 Railway 1155 MGA94_54 5225165 645131494 2691 -60 153 RC5
12BER18 Railway 157 MGA94_54 52233275 645128131 27229 -60 129 RC5
12BER19 Railway 97 MGA94_54 52224055 645106715 27616 -60 135 RC5
12BER20 Railway 120 MGA94_54 52129169 644973363 27695 -60 165 RC5
13BED01 Railway 3492 MGA94_54 52248021 645109243 29601 -60 3007 DDH1
16DM01 Pyrite Hill 1616 MGA94_54 51841138 644959389 28269 -60 2155 DDH1
16DM02 Pyrite Hill 1834 MGA94_54 51852662 644926158 28418 -60 2850 DDH1
16DM03 Big Hill 1265 MGA94_54 5210371 644956749 28301 -60 1585 DDH1
16DM04 Big Hill 1054 MGA94_54 52081474 64494644 29618 -55 1285 DDH1
16DM05 Railway 2465 MGA94_54 5221037 645088187 27662 -60 1285 DDH1
16DM06 Railway 1604 MGA94_54 52291157 645151913 2785 -60 1525 DDH1
16DM07 Railway 2425 MGA94_54 52299526 645159826 27636 -60 1561 DDH1
16DM08 Railway 2585 MGA94_54 52235145 645127307 27385 -60 1309 DDH1
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 27
Down hole length and interception depth ndash 2017 holes
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THD01 34 123 89 982 94 87
including 35 41 6 1143 119 106
and 50 55 5 1311 131 115
and 81 122 41 1366 118 11
17THD02 47 134 87 911 88 92
including 48 77 29 1238 111 114
and 116 134 18 1199 110 111
17THD03 40 635 235 894 116 108
including 49 63 14 1076 143 124
17THD04 20 29 9 1033 86 872 96 24 703 88 81
17THD05 44 60 16 993 98 85
including 44 56 12 1094 109 94
71 76 5 840 64 6317THD06 39 85 46 1136 114 101
including 40 70 30 1227 122 104
and 76 85 9 1148 107 100
17THD07 15 128 113 879 81 88
including 47 55 8 1048 117 103
and 61 102 41 1452 125 123
142 152 10 704 6 102199 204 5 706 49 65
17THR001 27 63 36 1075 106 104
including 37 63 26 1280 119 115
75 84 9 755 91 139
17THR002 37 43 6 711 69 82
91 136 45 983 98 105
including 102 136 34 1190 117 118
17THR003 4 59 55 937 93 94
including 10 46 36 1212 116 110
17THR004 49 146 97 888 102 102
including 51 113 62 1051 114 113
17THR005 52 72 20 1053 128 126
including 53 63 10 1145 125 130
17THR006 14 74 60 754 86 87
including 17 44 27 1176 125 121
17THR007 5 22 17 837 0 125
including 12 19 7 1049 0 105
128 154 26 1034 114 115
including 128 146 18 1321 144 143
17THR008 37 78 41 1319 122 11217THR009 29 65 36 957 94 92including 34 60 26 1150 111 102
100 105 5 833 129 12717THR010 51 57 6 729 49 5317THR011 30 83 53 1116 12 109
including 31 62 31 1423 155 135
17THR012 50 117 67 748 75 86
including 59 67 8 1084 103 126
and 75 102 27 1120 110 113
172 177 5 725 64 64
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 28
Down hole length and interception depth ndash 2017 holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THR013 19 73 54 888 54 5
including 19 29 10 2576 88 77
17THR014 12 45 33 749 81 74
including 25 33 8 1148 113 94
17THR015 40 48 8 995 89 8117THR016 66 115 49 1096 129 134
including 66 81 15 1184 142 139
and 89 114 25 1183 134 141
17THR017 54 112 58 1383 132 128
including 56 85 29 2042 183 158
17THR018 47 63 16 1124 151 14117THR019 42 59 17 1032 107 114
17THR020 29 49 20 1067 116 115
including 29 36 7 1352 135 126
17THR021 44 64 20 1204 131 12717THR022 101 138 37 1152 107 1217THR023 91 137 46 1271 139 133
including 91 97 6 1953 187 166
and 114 125 11 2707 311 265
17THR027 29 54 25 1176 126 118
including 30 47 17 1382 141 125
Down hole length and interception depth ndash historic holes
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
11PHR02 74 114 40 875 108 116
11PHR03 150 162 12 750 83 96
11PHR03 163 190 27 732 106 119
11PHR03 206 227 21 988 117 13
11PHR04 124 172 48 1049 128 129
11PHR05 197 219 22 1138 107 133
11PHR06 104 135 31 854 83 115
11PHR06 155 171 16 1315 12 122
11PHR07 96 147 51 941 95 99
11PHR08 103 115 12 1417 139 148
11PHR08 126 144 18 1048 126 142
12BER01 115 139 24 768 72 74
12BER02 18 25 7 1062 103 93
12BER02 113 123 10 907 85 86
12BER04 41 90 49 1191 114 127
12BER04 121 126 5 1241 9 112
12BER05 33 39 6 1109 79 92
12BER05 65 76 11 721 63 66
12BER06 131 169 38 844 83 128
12BER07 38 43 5 704 10 101
12BER09 33 92 59 841 9 116
12BER11 31 62 31 738 84 126
12BER11 92 159 67 1061 10 131
12BER11 173 193 20 737 67 83
12BER12 27 81 54 1430 181 189
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 29
Down hole length and interception depth ndash historic holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
12BER13 21 42 21 761 74 91
12BER13 65 75 10 1882 204 216
12BER14 28 55 27 1013 125 129
12BER16 25 100 75 1008 106 107
12BER17 92 99 7 739 6 63
12BER18 117 157 40 1017 112 114
12BER19 34 56 22 1151 104 108
12BER19 68 75 7 780 61 6
12BER20 21 46 25 731 69 75
13BED01 266 2915 255 872 85 78
16DM01 96 147 51 851 91 86
16DM02 127 172 45 1118 138 136
16DM03 104 111 7 838 103 9
16DM04 91 99 8 887 91 84
16DM05 30 103 73 793 82 9
16DM05 199 211 12 830 251 221
16DM06 28 84 56 1280 162 167
16DM06 138 146 8 722 78 112
16DM07 35 60 25 1232 111 111
16DM07 71 104 33 1224 133 134
16DM08 76 100 24 1026 11 12
16DM08 165 177 12 921 122 126
17THD01 34 123 89 982 94 87
17THD02 47 134 87 911 88 92
17THD03 40 635 235 894 116 108
17THD04 20 29 9 1033 86 8
17THD04 72 96 24 703 88 81
17THD05 44 60 16 993 98 85
17THD05 71 76 5 840 64 63
17THD06 39 85 46 1136 114 101
17THD07 15 128 113 879 81 88
17THD07 142 152 10 704 6 102
17THD07 199 204 5 706 49 65
17THR001 27 63 36 1075 106 104
17THR001 75 84 9 755 91 139
17THR002 37 43 6 711 69 82
17THR002 91 136 45 983 98 105
17THR003 4 59 55 937 93 94
17THR004 49 146 97 888 102 102
17THR005 52 72 20 1053 128 126
17THR006 14 74 60 754 86 87
17THR007 5 22 17 837 0 125
17THR007 128 154 26 1034 114 115
17THR008 37 78 41 1319 122 112
17THR009 29 65 36 957 94 92
17THR009 100 105 5 833 129 127
17THR010 51 57 6 729 49 53
17THR011 30 83 53 1116 12 109
17THR012 50 117 67 748 75 86
17THR012 172 177 5 725 64 64
17THR013 19 73 54 888 54 5
17THR014 12 45 33 749 81 74
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 30
Down hole length and interception depth ndash historic holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THR015 40 48 8 995 89 81
17THR016 66 115 49 1096 129 134
17THR017 54 112 58 1383 132 128
17THR018 47 63 16 1124 151 141
17THR019 42 59 17 1032 32 114
17THR020 29 49 20 1067 116 115
17THR021 44 64 20 1204 131 127
17THR022 101 138 37 1152 107 12
17THR023 91 137 46 1271 139 133
17THR027 29 54 25 1176 126 118
67TH01 12344 20001 7657 979 0 0
70BH01 3962 5334 1372 3323 31 0
70BH01 6431 8443 2012 1203 95 0
70BH02 7406 8686 128 704 75 0
70TH02 78 841 61 1666 175 154
70TH02 871 1021 15 1661 8 72
70TH03 777 1295 518 1016 129 132
80BGH05 39 49 10 752 0 0
80BGH06 18 6804 5004 969 0 0
80BGH08 44 7815 3415 939 0 0
80PYH01 75 17 95 725 0 0
80PYH02 341 4825 1415 1121 0 0
80PYH03 23 35 12 711 0 0
80PYH04 3975 55 1525 735 0 0
80PYH05 367 65 283 1160 118 0
80PYH06 54 62 8 905 0 0
80PYH07 67 794 124 1113 125 0
80PYH10 4845 1374 8895 831 86 0
80PYH11 346 465 119 916 8 0
80PYH11 572 9105 3385 1239 106 0
80PYH12 302 365 63 791 102 0
80PYH12 8515 908 565 857 146 0
80PYH14 2518 2734 216 1252 131 0
93MGM02 85 160 75 941 85 0
98TC01 20 47 27 744 91 126
98TC01 48 71 23 917 119 164
98TC03 34 45 11 1480 55 6
98TC03 68 79 11 1095 43 42
98TC04 84 94 10 966 39 4
98TC04 107 133 26 771 77 82
98TC05 24 62 38 754 64 7
98TC06 66 72 6 727 104 111
98TC06 76 101 25 767 101 106
98TC07 35 46 11 1546 165 171
98TC07 61 82 21 728 91 94
98TC09 32 39 7 716 49 174
98TC09 82 107 25 732 6 67
98TC10 101 125 24 732 79 8
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 31
Criteria JORC Code Explanation Commentary
Data aggregation methods
a In reporting Exploration Results weighting averaging techniques maximum andor minimum grade truncations (eg cutting of high grades) and cut-off grades are usually Material and should be stated
a Where aggregate intercepts incorporate short lengths of high grade results and longer lengths of low grade results the procedure used for such aggregation should be stated and some typical examples of such aggregations should be shown in detail
a The assumptions used for any reporting of metal equivalent values should be clearly stated
Drilling a Drill hole intercept grades are typically reported as down-hole
length-weighted averages with any non-recovered sample within the reported intervals treated as no grade The cut-off used for selecting significant intersections is selected to reflect the overall tenor of mineralisation in most cases 500ppm cobalt
a No top cuts have been applied when calculating average grades for reported significant intersections
a No metal equivalent values are reported
Relationship between mineralis- ation widths and intercept lengths
a These relationships are particularly important in the reporting of Exploration Results
a If the geometry of the mineralisation with respect to the drillhole angle is known its nature should be reported
a If it is not known and only the down hole lengths are reported there should be a clear statement to this effect (eg lsquodown hole length true width not knownrsquo)
a Drill holes at the Thackaringa project are typically angled at 50deg or 60deg and drilled perpendicular to the mineralised trend with drilling orientations adjusted along strike to accommodate folded geological sequences
a Mineralisation at the Big Hill and Railway prospects is steeply dipping and consequently mineralised intersections will be greater than true width At Pyrite Hill mineralisation is gently dipping and mineralised intersections will be close to true width
a There is insufficient geological knowledge to accurately estimate true widths and as such all drill intersections are reported as down hole lengths
Diagrams a Appropriate maps and sections (with scales) and tabulations of intercepts should be included for any significant discovery being reported These should include but not be limited to a plan view of drill hole collar locations and appropriate sectional views
a Appropriate maps and sections are presented in the accompa-nying ASX release
Balanced reporting
a Where comprehensive reporting of all exploration results is not practicable representative reporting of both low and high grades andor widths should be practiced to avoid misleading reporting of Exploration Results
a Only mineralised drill hole intersections regarded as highly anomalous and of economic interest are reported The proportion of each hole represented by the reported intervals can be ascertained from the sum of the reported intervals divided by the total drill hole depth
a All assay results for drill holes included in the various Mineral Resource estimates have been considered and comprise results not necessarily regarded as anomalous
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 32
Criteria JORC Code Explanation Commentary
Other substantive exploration data
a Other exploration data if meaningful and material should be reported including (but not limited to) geological obser-vations geophysical survey results geochemical survey results bulk samples ndash size and method of treatment metallurgical test results bulk density groun d- water geotechnical and rock characteristics potential deleterious or contaminating substances
a No further exploration data is deemed material to the results presented in this release
Further work a The nature and scale of planned further work (eg tests for lateral extensions or depth extensions or large-scale step-out drilling)
a Diagrams clearly highlighting the areas of possible extensions including the main geological interpretations and future drilling areas provided this information is not commercially sensitive
a The nature and scale of planned further work will be determined following the completion of revised Mineral Resource estimation for the Thackaringa deposits scheduled for May 2017
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 26
Historic down-hole information (continued)
Hole ID DepositMax Depth
(m) NAT Grid ID Easting Northing RL Dip Azimuth Hole TypePre-Collar
Depth
12BER04 Railway 148 MGA94_54 52235392 645126835 27435 -60 131 RC5
12BER05 Railway 145 MGA94_54 52243947 645116784 29973 -60 124 RC5
12BER06 Railway 169 MGA94_54 52248137 645109135 29595 -60 118 RC5
12BER07 Railway 115 MGA94_54 52232372 645074875 27791 -60 144 RC5
12BER08 Railway 193 MGA94_54 52222079 64508118 27316 -60 129 RC5
12BER09 Railway 13975 MGA94_54 52210125 645088144 27591 -60 129 RC5
12BER10 Railway 151 MGA94_54 52195345 645071618 28449 -60 129 RC5
12BER11 Railway 193 MGA94_54 52273722 645137661 26583 -60 153 RC5
12BER12 Railway 111 MGA94_54 52290973 645151676 27736 -60 153 RC5
12BER13 Railway 205 MGA94_54 52288381 645155754 27103 -60 156 RC5
12BER14 Railway 151 MGA94_54 52312483 645163707 28836 -60 152 RC5
12BER15 Railway 109 MGA94_54 5233113 64518417 28395 -60 154 RC5
12BER16 Railway 115 MGA94_54 52299408 645159199 27595 -60 156 RC5
12BER17 Railway 1155 MGA94_54 5225165 645131494 2691 -60 153 RC5
12BER18 Railway 157 MGA94_54 52233275 645128131 27229 -60 129 RC5
12BER19 Railway 97 MGA94_54 52224055 645106715 27616 -60 135 RC5
12BER20 Railway 120 MGA94_54 52129169 644973363 27695 -60 165 RC5
13BED01 Railway 3492 MGA94_54 52248021 645109243 29601 -60 3007 DDH1
16DM01 Pyrite Hill 1616 MGA94_54 51841138 644959389 28269 -60 2155 DDH1
16DM02 Pyrite Hill 1834 MGA94_54 51852662 644926158 28418 -60 2850 DDH1
16DM03 Big Hill 1265 MGA94_54 5210371 644956749 28301 -60 1585 DDH1
16DM04 Big Hill 1054 MGA94_54 52081474 64494644 29618 -55 1285 DDH1
16DM05 Railway 2465 MGA94_54 5221037 645088187 27662 -60 1285 DDH1
16DM06 Railway 1604 MGA94_54 52291157 645151913 2785 -60 1525 DDH1
16DM07 Railway 2425 MGA94_54 52299526 645159826 27636 -60 1561 DDH1
16DM08 Railway 2585 MGA94_54 52235145 645127307 27385 -60 1309 DDH1
1 Diamond drill hole
2 Diamond drill hole with percussion pre-collar
3 Diamond drill hole with reverse circulation pre-collar
4 Diamond drill hole with rotary air blast pre-collar
5 Reverse Circulation drill hole
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 27
Down hole length and interception depth ndash 2017 holes
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THD01 34 123 89 982 94 87
including 35 41 6 1143 119 106
and 50 55 5 1311 131 115
and 81 122 41 1366 118 11
17THD02 47 134 87 911 88 92
including 48 77 29 1238 111 114
and 116 134 18 1199 110 111
17THD03 40 635 235 894 116 108
including 49 63 14 1076 143 124
17THD04 20 29 9 1033 86 872 96 24 703 88 81
17THD05 44 60 16 993 98 85
including 44 56 12 1094 109 94
71 76 5 840 64 6317THD06 39 85 46 1136 114 101
including 40 70 30 1227 122 104
and 76 85 9 1148 107 100
17THD07 15 128 113 879 81 88
including 47 55 8 1048 117 103
and 61 102 41 1452 125 123
142 152 10 704 6 102199 204 5 706 49 65
17THR001 27 63 36 1075 106 104
including 37 63 26 1280 119 115
75 84 9 755 91 139
17THR002 37 43 6 711 69 82
91 136 45 983 98 105
including 102 136 34 1190 117 118
17THR003 4 59 55 937 93 94
including 10 46 36 1212 116 110
17THR004 49 146 97 888 102 102
including 51 113 62 1051 114 113
17THR005 52 72 20 1053 128 126
including 53 63 10 1145 125 130
17THR006 14 74 60 754 86 87
including 17 44 27 1176 125 121
17THR007 5 22 17 837 0 125
including 12 19 7 1049 0 105
128 154 26 1034 114 115
including 128 146 18 1321 144 143
17THR008 37 78 41 1319 122 11217THR009 29 65 36 957 94 92including 34 60 26 1150 111 102
100 105 5 833 129 12717THR010 51 57 6 729 49 5317THR011 30 83 53 1116 12 109
including 31 62 31 1423 155 135
17THR012 50 117 67 748 75 86
including 59 67 8 1084 103 126
and 75 102 27 1120 110 113
172 177 5 725 64 64
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 28
Down hole length and interception depth ndash 2017 holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THR013 19 73 54 888 54 5
including 19 29 10 2576 88 77
17THR014 12 45 33 749 81 74
including 25 33 8 1148 113 94
17THR015 40 48 8 995 89 8117THR016 66 115 49 1096 129 134
including 66 81 15 1184 142 139
and 89 114 25 1183 134 141
17THR017 54 112 58 1383 132 128
including 56 85 29 2042 183 158
17THR018 47 63 16 1124 151 14117THR019 42 59 17 1032 107 114
17THR020 29 49 20 1067 116 115
including 29 36 7 1352 135 126
17THR021 44 64 20 1204 131 12717THR022 101 138 37 1152 107 1217THR023 91 137 46 1271 139 133
including 91 97 6 1953 187 166
and 114 125 11 2707 311 265
17THR027 29 54 25 1176 126 118
including 30 47 17 1382 141 125
Down hole length and interception depth ndash historic holes
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
11PHR02 74 114 40 875 108 116
11PHR03 150 162 12 750 83 96
11PHR03 163 190 27 732 106 119
11PHR03 206 227 21 988 117 13
11PHR04 124 172 48 1049 128 129
11PHR05 197 219 22 1138 107 133
11PHR06 104 135 31 854 83 115
11PHR06 155 171 16 1315 12 122
11PHR07 96 147 51 941 95 99
11PHR08 103 115 12 1417 139 148
11PHR08 126 144 18 1048 126 142
12BER01 115 139 24 768 72 74
12BER02 18 25 7 1062 103 93
12BER02 113 123 10 907 85 86
12BER04 41 90 49 1191 114 127
12BER04 121 126 5 1241 9 112
12BER05 33 39 6 1109 79 92
12BER05 65 76 11 721 63 66
12BER06 131 169 38 844 83 128
12BER07 38 43 5 704 10 101
12BER09 33 92 59 841 9 116
12BER11 31 62 31 738 84 126
12BER11 92 159 67 1061 10 131
12BER11 173 193 20 737 67 83
12BER12 27 81 54 1430 181 189
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 29
Down hole length and interception depth ndash historic holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
12BER13 21 42 21 761 74 91
12BER13 65 75 10 1882 204 216
12BER14 28 55 27 1013 125 129
12BER16 25 100 75 1008 106 107
12BER17 92 99 7 739 6 63
12BER18 117 157 40 1017 112 114
12BER19 34 56 22 1151 104 108
12BER19 68 75 7 780 61 6
12BER20 21 46 25 731 69 75
13BED01 266 2915 255 872 85 78
16DM01 96 147 51 851 91 86
16DM02 127 172 45 1118 138 136
16DM03 104 111 7 838 103 9
16DM04 91 99 8 887 91 84
16DM05 30 103 73 793 82 9
16DM05 199 211 12 830 251 221
16DM06 28 84 56 1280 162 167
16DM06 138 146 8 722 78 112
16DM07 35 60 25 1232 111 111
16DM07 71 104 33 1224 133 134
16DM08 76 100 24 1026 11 12
16DM08 165 177 12 921 122 126
17THD01 34 123 89 982 94 87
17THD02 47 134 87 911 88 92
17THD03 40 635 235 894 116 108
17THD04 20 29 9 1033 86 8
17THD04 72 96 24 703 88 81
17THD05 44 60 16 993 98 85
17THD05 71 76 5 840 64 63
17THD06 39 85 46 1136 114 101
17THD07 15 128 113 879 81 88
17THD07 142 152 10 704 6 102
17THD07 199 204 5 706 49 65
17THR001 27 63 36 1075 106 104
17THR001 75 84 9 755 91 139
17THR002 37 43 6 711 69 82
17THR002 91 136 45 983 98 105
17THR003 4 59 55 937 93 94
17THR004 49 146 97 888 102 102
17THR005 52 72 20 1053 128 126
17THR006 14 74 60 754 86 87
17THR007 5 22 17 837 0 125
17THR007 128 154 26 1034 114 115
17THR008 37 78 41 1319 122 112
17THR009 29 65 36 957 94 92
17THR009 100 105 5 833 129 127
17THR010 51 57 6 729 49 53
17THR011 30 83 53 1116 12 109
17THR012 50 117 67 748 75 86
17THR012 172 177 5 725 64 64
17THR013 19 73 54 888 54 5
17THR014 12 45 33 749 81 74
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 30
Down hole length and interception depth ndash historic holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THR015 40 48 8 995 89 81
17THR016 66 115 49 1096 129 134
17THR017 54 112 58 1383 132 128
17THR018 47 63 16 1124 151 141
17THR019 42 59 17 1032 32 114
17THR020 29 49 20 1067 116 115
17THR021 44 64 20 1204 131 127
17THR022 101 138 37 1152 107 12
17THR023 91 137 46 1271 139 133
17THR027 29 54 25 1176 126 118
67TH01 12344 20001 7657 979 0 0
70BH01 3962 5334 1372 3323 31 0
70BH01 6431 8443 2012 1203 95 0
70BH02 7406 8686 128 704 75 0
70TH02 78 841 61 1666 175 154
70TH02 871 1021 15 1661 8 72
70TH03 777 1295 518 1016 129 132
80BGH05 39 49 10 752 0 0
80BGH06 18 6804 5004 969 0 0
80BGH08 44 7815 3415 939 0 0
80PYH01 75 17 95 725 0 0
80PYH02 341 4825 1415 1121 0 0
80PYH03 23 35 12 711 0 0
80PYH04 3975 55 1525 735 0 0
80PYH05 367 65 283 1160 118 0
80PYH06 54 62 8 905 0 0
80PYH07 67 794 124 1113 125 0
80PYH10 4845 1374 8895 831 86 0
80PYH11 346 465 119 916 8 0
80PYH11 572 9105 3385 1239 106 0
80PYH12 302 365 63 791 102 0
80PYH12 8515 908 565 857 146 0
80PYH14 2518 2734 216 1252 131 0
93MGM02 85 160 75 941 85 0
98TC01 20 47 27 744 91 126
98TC01 48 71 23 917 119 164
98TC03 34 45 11 1480 55 6
98TC03 68 79 11 1095 43 42
98TC04 84 94 10 966 39 4
98TC04 107 133 26 771 77 82
98TC05 24 62 38 754 64 7
98TC06 66 72 6 727 104 111
98TC06 76 101 25 767 101 106
98TC07 35 46 11 1546 165 171
98TC07 61 82 21 728 91 94
98TC09 32 39 7 716 49 174
98TC09 82 107 25 732 6 67
98TC10 101 125 24 732 79 8
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 31
Criteria JORC Code Explanation Commentary
Data aggregation methods
a In reporting Exploration Results weighting averaging techniques maximum andor minimum grade truncations (eg cutting of high grades) and cut-off grades are usually Material and should be stated
a Where aggregate intercepts incorporate short lengths of high grade results and longer lengths of low grade results the procedure used for such aggregation should be stated and some typical examples of such aggregations should be shown in detail
a The assumptions used for any reporting of metal equivalent values should be clearly stated
Drilling a Drill hole intercept grades are typically reported as down-hole
length-weighted averages with any non-recovered sample within the reported intervals treated as no grade The cut-off used for selecting significant intersections is selected to reflect the overall tenor of mineralisation in most cases 500ppm cobalt
a No top cuts have been applied when calculating average grades for reported significant intersections
a No metal equivalent values are reported
Relationship between mineralis- ation widths and intercept lengths
a These relationships are particularly important in the reporting of Exploration Results
a If the geometry of the mineralisation with respect to the drillhole angle is known its nature should be reported
a If it is not known and only the down hole lengths are reported there should be a clear statement to this effect (eg lsquodown hole length true width not knownrsquo)
a Drill holes at the Thackaringa project are typically angled at 50deg or 60deg and drilled perpendicular to the mineralised trend with drilling orientations adjusted along strike to accommodate folded geological sequences
a Mineralisation at the Big Hill and Railway prospects is steeply dipping and consequently mineralised intersections will be greater than true width At Pyrite Hill mineralisation is gently dipping and mineralised intersections will be close to true width
a There is insufficient geological knowledge to accurately estimate true widths and as such all drill intersections are reported as down hole lengths
Diagrams a Appropriate maps and sections (with scales) and tabulations of intercepts should be included for any significant discovery being reported These should include but not be limited to a plan view of drill hole collar locations and appropriate sectional views
a Appropriate maps and sections are presented in the accompa-nying ASX release
Balanced reporting
a Where comprehensive reporting of all exploration results is not practicable representative reporting of both low and high grades andor widths should be practiced to avoid misleading reporting of Exploration Results
a Only mineralised drill hole intersections regarded as highly anomalous and of economic interest are reported The proportion of each hole represented by the reported intervals can be ascertained from the sum of the reported intervals divided by the total drill hole depth
a All assay results for drill holes included in the various Mineral Resource estimates have been considered and comprise results not necessarily regarded as anomalous
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 32
Criteria JORC Code Explanation Commentary
Other substantive exploration data
a Other exploration data if meaningful and material should be reported including (but not limited to) geological obser-vations geophysical survey results geochemical survey results bulk samples ndash size and method of treatment metallurgical test results bulk density groun d- water geotechnical and rock characteristics potential deleterious or contaminating substances
a No further exploration data is deemed material to the results presented in this release
Further work a The nature and scale of planned further work (eg tests for lateral extensions or depth extensions or large-scale step-out drilling)
a Diagrams clearly highlighting the areas of possible extensions including the main geological interpretations and future drilling areas provided this information is not commercially sensitive
a The nature and scale of planned further work will be determined following the completion of revised Mineral Resource estimation for the Thackaringa deposits scheduled for May 2017
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 27
Down hole length and interception depth ndash 2017 holes
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THD01 34 123 89 982 94 87
including 35 41 6 1143 119 106
and 50 55 5 1311 131 115
and 81 122 41 1366 118 11
17THD02 47 134 87 911 88 92
including 48 77 29 1238 111 114
and 116 134 18 1199 110 111
17THD03 40 635 235 894 116 108
including 49 63 14 1076 143 124
17THD04 20 29 9 1033 86 872 96 24 703 88 81
17THD05 44 60 16 993 98 85
including 44 56 12 1094 109 94
71 76 5 840 64 6317THD06 39 85 46 1136 114 101
including 40 70 30 1227 122 104
and 76 85 9 1148 107 100
17THD07 15 128 113 879 81 88
including 47 55 8 1048 117 103
and 61 102 41 1452 125 123
142 152 10 704 6 102199 204 5 706 49 65
17THR001 27 63 36 1075 106 104
including 37 63 26 1280 119 115
75 84 9 755 91 139
17THR002 37 43 6 711 69 82
91 136 45 983 98 105
including 102 136 34 1190 117 118
17THR003 4 59 55 937 93 94
including 10 46 36 1212 116 110
17THR004 49 146 97 888 102 102
including 51 113 62 1051 114 113
17THR005 52 72 20 1053 128 126
including 53 63 10 1145 125 130
17THR006 14 74 60 754 86 87
including 17 44 27 1176 125 121
17THR007 5 22 17 837 0 125
including 12 19 7 1049 0 105
128 154 26 1034 114 115
including 128 146 18 1321 144 143
17THR008 37 78 41 1319 122 11217THR009 29 65 36 957 94 92including 34 60 26 1150 111 102
100 105 5 833 129 12717THR010 51 57 6 729 49 5317THR011 30 83 53 1116 12 109
including 31 62 31 1423 155 135
17THR012 50 117 67 748 75 86
including 59 67 8 1084 103 126
and 75 102 27 1120 110 113
172 177 5 725 64 64
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 28
Down hole length and interception depth ndash 2017 holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THR013 19 73 54 888 54 5
including 19 29 10 2576 88 77
17THR014 12 45 33 749 81 74
including 25 33 8 1148 113 94
17THR015 40 48 8 995 89 8117THR016 66 115 49 1096 129 134
including 66 81 15 1184 142 139
and 89 114 25 1183 134 141
17THR017 54 112 58 1383 132 128
including 56 85 29 2042 183 158
17THR018 47 63 16 1124 151 14117THR019 42 59 17 1032 107 114
17THR020 29 49 20 1067 116 115
including 29 36 7 1352 135 126
17THR021 44 64 20 1204 131 12717THR022 101 138 37 1152 107 1217THR023 91 137 46 1271 139 133
including 91 97 6 1953 187 166
and 114 125 11 2707 311 265
17THR027 29 54 25 1176 126 118
including 30 47 17 1382 141 125
Down hole length and interception depth ndash historic holes
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
11PHR02 74 114 40 875 108 116
11PHR03 150 162 12 750 83 96
11PHR03 163 190 27 732 106 119
11PHR03 206 227 21 988 117 13
11PHR04 124 172 48 1049 128 129
11PHR05 197 219 22 1138 107 133
11PHR06 104 135 31 854 83 115
11PHR06 155 171 16 1315 12 122
11PHR07 96 147 51 941 95 99
11PHR08 103 115 12 1417 139 148
11PHR08 126 144 18 1048 126 142
12BER01 115 139 24 768 72 74
12BER02 18 25 7 1062 103 93
12BER02 113 123 10 907 85 86
12BER04 41 90 49 1191 114 127
12BER04 121 126 5 1241 9 112
12BER05 33 39 6 1109 79 92
12BER05 65 76 11 721 63 66
12BER06 131 169 38 844 83 128
12BER07 38 43 5 704 10 101
12BER09 33 92 59 841 9 116
12BER11 31 62 31 738 84 126
12BER11 92 159 67 1061 10 131
12BER11 173 193 20 737 67 83
12BER12 27 81 54 1430 181 189
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 29
Down hole length and interception depth ndash historic holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
12BER13 21 42 21 761 74 91
12BER13 65 75 10 1882 204 216
12BER14 28 55 27 1013 125 129
12BER16 25 100 75 1008 106 107
12BER17 92 99 7 739 6 63
12BER18 117 157 40 1017 112 114
12BER19 34 56 22 1151 104 108
12BER19 68 75 7 780 61 6
12BER20 21 46 25 731 69 75
13BED01 266 2915 255 872 85 78
16DM01 96 147 51 851 91 86
16DM02 127 172 45 1118 138 136
16DM03 104 111 7 838 103 9
16DM04 91 99 8 887 91 84
16DM05 30 103 73 793 82 9
16DM05 199 211 12 830 251 221
16DM06 28 84 56 1280 162 167
16DM06 138 146 8 722 78 112
16DM07 35 60 25 1232 111 111
16DM07 71 104 33 1224 133 134
16DM08 76 100 24 1026 11 12
16DM08 165 177 12 921 122 126
17THD01 34 123 89 982 94 87
17THD02 47 134 87 911 88 92
17THD03 40 635 235 894 116 108
17THD04 20 29 9 1033 86 8
17THD04 72 96 24 703 88 81
17THD05 44 60 16 993 98 85
17THD05 71 76 5 840 64 63
17THD06 39 85 46 1136 114 101
17THD07 15 128 113 879 81 88
17THD07 142 152 10 704 6 102
17THD07 199 204 5 706 49 65
17THR001 27 63 36 1075 106 104
17THR001 75 84 9 755 91 139
17THR002 37 43 6 711 69 82
17THR002 91 136 45 983 98 105
17THR003 4 59 55 937 93 94
17THR004 49 146 97 888 102 102
17THR005 52 72 20 1053 128 126
17THR006 14 74 60 754 86 87
17THR007 5 22 17 837 0 125
17THR007 128 154 26 1034 114 115
17THR008 37 78 41 1319 122 112
17THR009 29 65 36 957 94 92
17THR009 100 105 5 833 129 127
17THR010 51 57 6 729 49 53
17THR011 30 83 53 1116 12 109
17THR012 50 117 67 748 75 86
17THR012 172 177 5 725 64 64
17THR013 19 73 54 888 54 5
17THR014 12 45 33 749 81 74
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 30
Down hole length and interception depth ndash historic holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THR015 40 48 8 995 89 81
17THR016 66 115 49 1096 129 134
17THR017 54 112 58 1383 132 128
17THR018 47 63 16 1124 151 141
17THR019 42 59 17 1032 32 114
17THR020 29 49 20 1067 116 115
17THR021 44 64 20 1204 131 127
17THR022 101 138 37 1152 107 12
17THR023 91 137 46 1271 139 133
17THR027 29 54 25 1176 126 118
67TH01 12344 20001 7657 979 0 0
70BH01 3962 5334 1372 3323 31 0
70BH01 6431 8443 2012 1203 95 0
70BH02 7406 8686 128 704 75 0
70TH02 78 841 61 1666 175 154
70TH02 871 1021 15 1661 8 72
70TH03 777 1295 518 1016 129 132
80BGH05 39 49 10 752 0 0
80BGH06 18 6804 5004 969 0 0
80BGH08 44 7815 3415 939 0 0
80PYH01 75 17 95 725 0 0
80PYH02 341 4825 1415 1121 0 0
80PYH03 23 35 12 711 0 0
80PYH04 3975 55 1525 735 0 0
80PYH05 367 65 283 1160 118 0
80PYH06 54 62 8 905 0 0
80PYH07 67 794 124 1113 125 0
80PYH10 4845 1374 8895 831 86 0
80PYH11 346 465 119 916 8 0
80PYH11 572 9105 3385 1239 106 0
80PYH12 302 365 63 791 102 0
80PYH12 8515 908 565 857 146 0
80PYH14 2518 2734 216 1252 131 0
93MGM02 85 160 75 941 85 0
98TC01 20 47 27 744 91 126
98TC01 48 71 23 917 119 164
98TC03 34 45 11 1480 55 6
98TC03 68 79 11 1095 43 42
98TC04 84 94 10 966 39 4
98TC04 107 133 26 771 77 82
98TC05 24 62 38 754 64 7
98TC06 66 72 6 727 104 111
98TC06 76 101 25 767 101 106
98TC07 35 46 11 1546 165 171
98TC07 61 82 21 728 91 94
98TC09 32 39 7 716 49 174
98TC09 82 107 25 732 6 67
98TC10 101 125 24 732 79 8
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 31
Criteria JORC Code Explanation Commentary
Data aggregation methods
a In reporting Exploration Results weighting averaging techniques maximum andor minimum grade truncations (eg cutting of high grades) and cut-off grades are usually Material and should be stated
a Where aggregate intercepts incorporate short lengths of high grade results and longer lengths of low grade results the procedure used for such aggregation should be stated and some typical examples of such aggregations should be shown in detail
a The assumptions used for any reporting of metal equivalent values should be clearly stated
Drilling a Drill hole intercept grades are typically reported as down-hole
length-weighted averages with any non-recovered sample within the reported intervals treated as no grade The cut-off used for selecting significant intersections is selected to reflect the overall tenor of mineralisation in most cases 500ppm cobalt
a No top cuts have been applied when calculating average grades for reported significant intersections
a No metal equivalent values are reported
Relationship between mineralis- ation widths and intercept lengths
a These relationships are particularly important in the reporting of Exploration Results
a If the geometry of the mineralisation with respect to the drillhole angle is known its nature should be reported
a If it is not known and only the down hole lengths are reported there should be a clear statement to this effect (eg lsquodown hole length true width not knownrsquo)
a Drill holes at the Thackaringa project are typically angled at 50deg or 60deg and drilled perpendicular to the mineralised trend with drilling orientations adjusted along strike to accommodate folded geological sequences
a Mineralisation at the Big Hill and Railway prospects is steeply dipping and consequently mineralised intersections will be greater than true width At Pyrite Hill mineralisation is gently dipping and mineralised intersections will be close to true width
a There is insufficient geological knowledge to accurately estimate true widths and as such all drill intersections are reported as down hole lengths
Diagrams a Appropriate maps and sections (with scales) and tabulations of intercepts should be included for any significant discovery being reported These should include but not be limited to a plan view of drill hole collar locations and appropriate sectional views
a Appropriate maps and sections are presented in the accompa-nying ASX release
Balanced reporting
a Where comprehensive reporting of all exploration results is not practicable representative reporting of both low and high grades andor widths should be practiced to avoid misleading reporting of Exploration Results
a Only mineralised drill hole intersections regarded as highly anomalous and of economic interest are reported The proportion of each hole represented by the reported intervals can be ascertained from the sum of the reported intervals divided by the total drill hole depth
a All assay results for drill holes included in the various Mineral Resource estimates have been considered and comprise results not necessarily regarded as anomalous
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 32
Criteria JORC Code Explanation Commentary
Other substantive exploration data
a Other exploration data if meaningful and material should be reported including (but not limited to) geological obser-vations geophysical survey results geochemical survey results bulk samples ndash size and method of treatment metallurgical test results bulk density groun d- water geotechnical and rock characteristics potential deleterious or contaminating substances
a No further exploration data is deemed material to the results presented in this release
Further work a The nature and scale of planned further work (eg tests for lateral extensions or depth extensions or large-scale step-out drilling)
a Diagrams clearly highlighting the areas of possible extensions including the main geological interpretations and future drilling areas provided this information is not commercially sensitive
a The nature and scale of planned further work will be determined following the completion of revised Mineral Resource estimation for the Thackaringa deposits scheduled for May 2017
For
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 28
Down hole length and interception depth ndash 2017 holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THR013 19 73 54 888 54 5
including 19 29 10 2576 88 77
17THR014 12 45 33 749 81 74
including 25 33 8 1148 113 94
17THR015 40 48 8 995 89 8117THR016 66 115 49 1096 129 134
including 66 81 15 1184 142 139
and 89 114 25 1183 134 141
17THR017 54 112 58 1383 132 128
including 56 85 29 2042 183 158
17THR018 47 63 16 1124 151 14117THR019 42 59 17 1032 107 114
17THR020 29 49 20 1067 116 115
including 29 36 7 1352 135 126
17THR021 44 64 20 1204 131 12717THR022 101 138 37 1152 107 1217THR023 91 137 46 1271 139 133
including 91 97 6 1953 187 166
and 114 125 11 2707 311 265
17THR027 29 54 25 1176 126 118
including 30 47 17 1382 141 125
Down hole length and interception depth ndash historic holes
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
11PHR02 74 114 40 875 108 116
11PHR03 150 162 12 750 83 96
11PHR03 163 190 27 732 106 119
11PHR03 206 227 21 988 117 13
11PHR04 124 172 48 1049 128 129
11PHR05 197 219 22 1138 107 133
11PHR06 104 135 31 854 83 115
11PHR06 155 171 16 1315 12 122
11PHR07 96 147 51 941 95 99
11PHR08 103 115 12 1417 139 148
11PHR08 126 144 18 1048 126 142
12BER01 115 139 24 768 72 74
12BER02 18 25 7 1062 103 93
12BER02 113 123 10 907 85 86
12BER04 41 90 49 1191 114 127
12BER04 121 126 5 1241 9 112
12BER05 33 39 6 1109 79 92
12BER05 65 76 11 721 63 66
12BER06 131 169 38 844 83 128
12BER07 38 43 5 704 10 101
12BER09 33 92 59 841 9 116
12BER11 31 62 31 738 84 126
12BER11 92 159 67 1061 10 131
12BER11 173 193 20 737 67 83
12BER12 27 81 54 1430 181 189
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 29
Down hole length and interception depth ndash historic holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
12BER13 21 42 21 761 74 91
12BER13 65 75 10 1882 204 216
12BER14 28 55 27 1013 125 129
12BER16 25 100 75 1008 106 107
12BER17 92 99 7 739 6 63
12BER18 117 157 40 1017 112 114
12BER19 34 56 22 1151 104 108
12BER19 68 75 7 780 61 6
12BER20 21 46 25 731 69 75
13BED01 266 2915 255 872 85 78
16DM01 96 147 51 851 91 86
16DM02 127 172 45 1118 138 136
16DM03 104 111 7 838 103 9
16DM04 91 99 8 887 91 84
16DM05 30 103 73 793 82 9
16DM05 199 211 12 830 251 221
16DM06 28 84 56 1280 162 167
16DM06 138 146 8 722 78 112
16DM07 35 60 25 1232 111 111
16DM07 71 104 33 1224 133 134
16DM08 76 100 24 1026 11 12
16DM08 165 177 12 921 122 126
17THD01 34 123 89 982 94 87
17THD02 47 134 87 911 88 92
17THD03 40 635 235 894 116 108
17THD04 20 29 9 1033 86 8
17THD04 72 96 24 703 88 81
17THD05 44 60 16 993 98 85
17THD05 71 76 5 840 64 63
17THD06 39 85 46 1136 114 101
17THD07 15 128 113 879 81 88
17THD07 142 152 10 704 6 102
17THD07 199 204 5 706 49 65
17THR001 27 63 36 1075 106 104
17THR001 75 84 9 755 91 139
17THR002 37 43 6 711 69 82
17THR002 91 136 45 983 98 105
17THR003 4 59 55 937 93 94
17THR004 49 146 97 888 102 102
17THR005 52 72 20 1053 128 126
17THR006 14 74 60 754 86 87
17THR007 5 22 17 837 0 125
17THR007 128 154 26 1034 114 115
17THR008 37 78 41 1319 122 112
17THR009 29 65 36 957 94 92
17THR009 100 105 5 833 129 127
17THR010 51 57 6 729 49 53
17THR011 30 83 53 1116 12 109
17THR012 50 117 67 748 75 86
17THR012 172 177 5 725 64 64
17THR013 19 73 54 888 54 5
17THR014 12 45 33 749 81 74
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 30
Down hole length and interception depth ndash historic holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THR015 40 48 8 995 89 81
17THR016 66 115 49 1096 129 134
17THR017 54 112 58 1383 132 128
17THR018 47 63 16 1124 151 141
17THR019 42 59 17 1032 32 114
17THR020 29 49 20 1067 116 115
17THR021 44 64 20 1204 131 127
17THR022 101 138 37 1152 107 12
17THR023 91 137 46 1271 139 133
17THR027 29 54 25 1176 126 118
67TH01 12344 20001 7657 979 0 0
70BH01 3962 5334 1372 3323 31 0
70BH01 6431 8443 2012 1203 95 0
70BH02 7406 8686 128 704 75 0
70TH02 78 841 61 1666 175 154
70TH02 871 1021 15 1661 8 72
70TH03 777 1295 518 1016 129 132
80BGH05 39 49 10 752 0 0
80BGH06 18 6804 5004 969 0 0
80BGH08 44 7815 3415 939 0 0
80PYH01 75 17 95 725 0 0
80PYH02 341 4825 1415 1121 0 0
80PYH03 23 35 12 711 0 0
80PYH04 3975 55 1525 735 0 0
80PYH05 367 65 283 1160 118 0
80PYH06 54 62 8 905 0 0
80PYH07 67 794 124 1113 125 0
80PYH10 4845 1374 8895 831 86 0
80PYH11 346 465 119 916 8 0
80PYH11 572 9105 3385 1239 106 0
80PYH12 302 365 63 791 102 0
80PYH12 8515 908 565 857 146 0
80PYH14 2518 2734 216 1252 131 0
93MGM02 85 160 75 941 85 0
98TC01 20 47 27 744 91 126
98TC01 48 71 23 917 119 164
98TC03 34 45 11 1480 55 6
98TC03 68 79 11 1095 43 42
98TC04 84 94 10 966 39 4
98TC04 107 133 26 771 77 82
98TC05 24 62 38 754 64 7
98TC06 66 72 6 727 104 111
98TC06 76 101 25 767 101 106
98TC07 35 46 11 1546 165 171
98TC07 61 82 21 728 91 94
98TC09 32 39 7 716 49 174
98TC09 82 107 25 732 6 67
98TC10 101 125 24 732 79 8
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 31
Criteria JORC Code Explanation Commentary
Data aggregation methods
a In reporting Exploration Results weighting averaging techniques maximum andor minimum grade truncations (eg cutting of high grades) and cut-off grades are usually Material and should be stated
a Where aggregate intercepts incorporate short lengths of high grade results and longer lengths of low grade results the procedure used for such aggregation should be stated and some typical examples of such aggregations should be shown in detail
a The assumptions used for any reporting of metal equivalent values should be clearly stated
Drilling a Drill hole intercept grades are typically reported as down-hole
length-weighted averages with any non-recovered sample within the reported intervals treated as no grade The cut-off used for selecting significant intersections is selected to reflect the overall tenor of mineralisation in most cases 500ppm cobalt
a No top cuts have been applied when calculating average grades for reported significant intersections
a No metal equivalent values are reported
Relationship between mineralis- ation widths and intercept lengths
a These relationships are particularly important in the reporting of Exploration Results
a If the geometry of the mineralisation with respect to the drillhole angle is known its nature should be reported
a If it is not known and only the down hole lengths are reported there should be a clear statement to this effect (eg lsquodown hole length true width not knownrsquo)
a Drill holes at the Thackaringa project are typically angled at 50deg or 60deg and drilled perpendicular to the mineralised trend with drilling orientations adjusted along strike to accommodate folded geological sequences
a Mineralisation at the Big Hill and Railway prospects is steeply dipping and consequently mineralised intersections will be greater than true width At Pyrite Hill mineralisation is gently dipping and mineralised intersections will be close to true width
a There is insufficient geological knowledge to accurately estimate true widths and as such all drill intersections are reported as down hole lengths
Diagrams a Appropriate maps and sections (with scales) and tabulations of intercepts should be included for any significant discovery being reported These should include but not be limited to a plan view of drill hole collar locations and appropriate sectional views
a Appropriate maps and sections are presented in the accompa-nying ASX release
Balanced reporting
a Where comprehensive reporting of all exploration results is not practicable representative reporting of both low and high grades andor widths should be practiced to avoid misleading reporting of Exploration Results
a Only mineralised drill hole intersections regarded as highly anomalous and of economic interest are reported The proportion of each hole represented by the reported intervals can be ascertained from the sum of the reported intervals divided by the total drill hole depth
a All assay results for drill holes included in the various Mineral Resource estimates have been considered and comprise results not necessarily regarded as anomalous
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 32
Criteria JORC Code Explanation Commentary
Other substantive exploration data
a Other exploration data if meaningful and material should be reported including (but not limited to) geological obser-vations geophysical survey results geochemical survey results bulk samples ndash size and method of treatment metallurgical test results bulk density groun d- water geotechnical and rock characteristics potential deleterious or contaminating substances
a No further exploration data is deemed material to the results presented in this release
Further work a The nature and scale of planned further work (eg tests for lateral extensions or depth extensions or large-scale step-out drilling)
a Diagrams clearly highlighting the areas of possible extensions including the main geological interpretations and future drilling areas provided this information is not commercially sensitive
a The nature and scale of planned further work will be determined following the completion of revised Mineral Resource estimation for the Thackaringa deposits scheduled for May 2017
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 29
Down hole length and interception depth ndash historic holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
12BER13 21 42 21 761 74 91
12BER13 65 75 10 1882 204 216
12BER14 28 55 27 1013 125 129
12BER16 25 100 75 1008 106 107
12BER17 92 99 7 739 6 63
12BER18 117 157 40 1017 112 114
12BER19 34 56 22 1151 104 108
12BER19 68 75 7 780 61 6
12BER20 21 46 25 731 69 75
13BED01 266 2915 255 872 85 78
16DM01 96 147 51 851 91 86
16DM02 127 172 45 1118 138 136
16DM03 104 111 7 838 103 9
16DM04 91 99 8 887 91 84
16DM05 30 103 73 793 82 9
16DM05 199 211 12 830 251 221
16DM06 28 84 56 1280 162 167
16DM06 138 146 8 722 78 112
16DM07 35 60 25 1232 111 111
16DM07 71 104 33 1224 133 134
16DM08 76 100 24 1026 11 12
16DM08 165 177 12 921 122 126
17THD01 34 123 89 982 94 87
17THD02 47 134 87 911 88 92
17THD03 40 635 235 894 116 108
17THD04 20 29 9 1033 86 8
17THD04 72 96 24 703 88 81
17THD05 44 60 16 993 98 85
17THD05 71 76 5 840 64 63
17THD06 39 85 46 1136 114 101
17THD07 15 128 113 879 81 88
17THD07 142 152 10 704 6 102
17THD07 199 204 5 706 49 65
17THR001 27 63 36 1075 106 104
17THR001 75 84 9 755 91 139
17THR002 37 43 6 711 69 82
17THR002 91 136 45 983 98 105
17THR003 4 59 55 937 93 94
17THR004 49 146 97 888 102 102
17THR005 52 72 20 1053 128 126
17THR006 14 74 60 754 86 87
17THR007 5 22 17 837 0 125
17THR007 128 154 26 1034 114 115
17THR008 37 78 41 1319 122 112
17THR009 29 65 36 957 94 92
17THR009 100 105 5 833 129 127
17THR010 51 57 6 729 49 53
17THR011 30 83 53 1116 12 109
17THR012 50 117 67 748 75 86
17THR012 172 177 5 725 64 64
17THR013 19 73 54 888 54 5
17THR014 12 45 33 749 81 74
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 30
Down hole length and interception depth ndash historic holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THR015 40 48 8 995 89 81
17THR016 66 115 49 1096 129 134
17THR017 54 112 58 1383 132 128
17THR018 47 63 16 1124 151 141
17THR019 42 59 17 1032 32 114
17THR020 29 49 20 1067 116 115
17THR021 44 64 20 1204 131 127
17THR022 101 138 37 1152 107 12
17THR023 91 137 46 1271 139 133
17THR027 29 54 25 1176 126 118
67TH01 12344 20001 7657 979 0 0
70BH01 3962 5334 1372 3323 31 0
70BH01 6431 8443 2012 1203 95 0
70BH02 7406 8686 128 704 75 0
70TH02 78 841 61 1666 175 154
70TH02 871 1021 15 1661 8 72
70TH03 777 1295 518 1016 129 132
80BGH05 39 49 10 752 0 0
80BGH06 18 6804 5004 969 0 0
80BGH08 44 7815 3415 939 0 0
80PYH01 75 17 95 725 0 0
80PYH02 341 4825 1415 1121 0 0
80PYH03 23 35 12 711 0 0
80PYH04 3975 55 1525 735 0 0
80PYH05 367 65 283 1160 118 0
80PYH06 54 62 8 905 0 0
80PYH07 67 794 124 1113 125 0
80PYH10 4845 1374 8895 831 86 0
80PYH11 346 465 119 916 8 0
80PYH11 572 9105 3385 1239 106 0
80PYH12 302 365 63 791 102 0
80PYH12 8515 908 565 857 146 0
80PYH14 2518 2734 216 1252 131 0
93MGM02 85 160 75 941 85 0
98TC01 20 47 27 744 91 126
98TC01 48 71 23 917 119 164
98TC03 34 45 11 1480 55 6
98TC03 68 79 11 1095 43 42
98TC04 84 94 10 966 39 4
98TC04 107 133 26 771 77 82
98TC05 24 62 38 754 64 7
98TC06 66 72 6 727 104 111
98TC06 76 101 25 767 101 106
98TC07 35 46 11 1546 165 171
98TC07 61 82 21 728 91 94
98TC09 32 39 7 716 49 174
98TC09 82 107 25 732 6 67
98TC10 101 125 24 732 79 8
For
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 31
Criteria JORC Code Explanation Commentary
Data aggregation methods
a In reporting Exploration Results weighting averaging techniques maximum andor minimum grade truncations (eg cutting of high grades) and cut-off grades are usually Material and should be stated
a Where aggregate intercepts incorporate short lengths of high grade results and longer lengths of low grade results the procedure used for such aggregation should be stated and some typical examples of such aggregations should be shown in detail
a The assumptions used for any reporting of metal equivalent values should be clearly stated
Drilling a Drill hole intercept grades are typically reported as down-hole
length-weighted averages with any non-recovered sample within the reported intervals treated as no grade The cut-off used for selecting significant intersections is selected to reflect the overall tenor of mineralisation in most cases 500ppm cobalt
a No top cuts have been applied when calculating average grades for reported significant intersections
a No metal equivalent values are reported
Relationship between mineralis- ation widths and intercept lengths
a These relationships are particularly important in the reporting of Exploration Results
a If the geometry of the mineralisation with respect to the drillhole angle is known its nature should be reported
a If it is not known and only the down hole lengths are reported there should be a clear statement to this effect (eg lsquodown hole length true width not knownrsquo)
a Drill holes at the Thackaringa project are typically angled at 50deg or 60deg and drilled perpendicular to the mineralised trend with drilling orientations adjusted along strike to accommodate folded geological sequences
a Mineralisation at the Big Hill and Railway prospects is steeply dipping and consequently mineralised intersections will be greater than true width At Pyrite Hill mineralisation is gently dipping and mineralised intersections will be close to true width
a There is insufficient geological knowledge to accurately estimate true widths and as such all drill intersections are reported as down hole lengths
Diagrams a Appropriate maps and sections (with scales) and tabulations of intercepts should be included for any significant discovery being reported These should include but not be limited to a plan view of drill hole collar locations and appropriate sectional views
a Appropriate maps and sections are presented in the accompa-nying ASX release
Balanced reporting
a Where comprehensive reporting of all exploration results is not practicable representative reporting of both low and high grades andor widths should be practiced to avoid misleading reporting of Exploration Results
a Only mineralised drill hole intersections regarded as highly anomalous and of economic interest are reported The proportion of each hole represented by the reported intervals can be ascertained from the sum of the reported intervals divided by the total drill hole depth
a All assay results for drill holes included in the various Mineral Resource estimates have been considered and comprise results not necessarily regarded as anomalous
For
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 32
Criteria JORC Code Explanation Commentary
Other substantive exploration data
a Other exploration data if meaningful and material should be reported including (but not limited to) geological obser-vations geophysical survey results geochemical survey results bulk samples ndash size and method of treatment metallurgical test results bulk density groun d- water geotechnical and rock characteristics potential deleterious or contaminating substances
a No further exploration data is deemed material to the results presented in this release
Further work a The nature and scale of planned further work (eg tests for lateral extensions or depth extensions or large-scale step-out drilling)
a Diagrams clearly highlighting the areas of possible extensions including the main geological interpretations and future drilling areas provided this information is not commercially sensitive
a The nature and scale of planned further work will be determined following the completion of revised Mineral Resource estimation for the Thackaringa deposits scheduled for May 2017
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Down hole length and interception depth ndash historic holes (continued)
Hole ID From (m) To (m) Interval (m) Co (ppm) S () Fe ()
17THR015 40 48 8 995 89 81
17THR016 66 115 49 1096 129 134
17THR017 54 112 58 1383 132 128
17THR018 47 63 16 1124 151 141
17THR019 42 59 17 1032 32 114
17THR020 29 49 20 1067 116 115
17THR021 44 64 20 1204 131 127
17THR022 101 138 37 1152 107 12
17THR023 91 137 46 1271 139 133
17THR027 29 54 25 1176 126 118
67TH01 12344 20001 7657 979 0 0
70BH01 3962 5334 1372 3323 31 0
70BH01 6431 8443 2012 1203 95 0
70BH02 7406 8686 128 704 75 0
70TH02 78 841 61 1666 175 154
70TH02 871 1021 15 1661 8 72
70TH03 777 1295 518 1016 129 132
80BGH05 39 49 10 752 0 0
80BGH06 18 6804 5004 969 0 0
80BGH08 44 7815 3415 939 0 0
80PYH01 75 17 95 725 0 0
80PYH02 341 4825 1415 1121 0 0
80PYH03 23 35 12 711 0 0
80PYH04 3975 55 1525 735 0 0
80PYH05 367 65 283 1160 118 0
80PYH06 54 62 8 905 0 0
80PYH07 67 794 124 1113 125 0
80PYH10 4845 1374 8895 831 86 0
80PYH11 346 465 119 916 8 0
80PYH11 572 9105 3385 1239 106 0
80PYH12 302 365 63 791 102 0
80PYH12 8515 908 565 857 146 0
80PYH14 2518 2734 216 1252 131 0
93MGM02 85 160 75 941 85 0
98TC01 20 47 27 744 91 126
98TC01 48 71 23 917 119 164
98TC03 34 45 11 1480 55 6
98TC03 68 79 11 1095 43 42
98TC04 84 94 10 966 39 4
98TC04 107 133 26 771 77 82
98TC05 24 62 38 754 64 7
98TC06 66 72 6 727 104 111
98TC06 76 101 25 767 101 106
98TC07 35 46 11 1546 165 171
98TC07 61 82 21 728 91 94
98TC09 32 39 7 716 49 174
98TC09 82 107 25 732 6 67
98TC10 101 125 24 732 79 8
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Criteria JORC Code Explanation Commentary
Data aggregation methods
a In reporting Exploration Results weighting averaging techniques maximum andor minimum grade truncations (eg cutting of high grades) and cut-off grades are usually Material and should be stated
a Where aggregate intercepts incorporate short lengths of high grade results and longer lengths of low grade results the procedure used for such aggregation should be stated and some typical examples of such aggregations should be shown in detail
a The assumptions used for any reporting of metal equivalent values should be clearly stated
Drilling a Drill hole intercept grades are typically reported as down-hole
length-weighted averages with any non-recovered sample within the reported intervals treated as no grade The cut-off used for selecting significant intersections is selected to reflect the overall tenor of mineralisation in most cases 500ppm cobalt
a No top cuts have been applied when calculating average grades for reported significant intersections
a No metal equivalent values are reported
Relationship between mineralis- ation widths and intercept lengths
a These relationships are particularly important in the reporting of Exploration Results
a If the geometry of the mineralisation with respect to the drillhole angle is known its nature should be reported
a If it is not known and only the down hole lengths are reported there should be a clear statement to this effect (eg lsquodown hole length true width not knownrsquo)
a Drill holes at the Thackaringa project are typically angled at 50deg or 60deg and drilled perpendicular to the mineralised trend with drilling orientations adjusted along strike to accommodate folded geological sequences
a Mineralisation at the Big Hill and Railway prospects is steeply dipping and consequently mineralised intersections will be greater than true width At Pyrite Hill mineralisation is gently dipping and mineralised intersections will be close to true width
a There is insufficient geological knowledge to accurately estimate true widths and as such all drill intersections are reported as down hole lengths
Diagrams a Appropriate maps and sections (with scales) and tabulations of intercepts should be included for any significant discovery being reported These should include but not be limited to a plan view of drill hole collar locations and appropriate sectional views
a Appropriate maps and sections are presented in the accompa-nying ASX release
Balanced reporting
a Where comprehensive reporting of all exploration results is not practicable representative reporting of both low and high grades andor widths should be practiced to avoid misleading reporting of Exploration Results
a Only mineralised drill hole intersections regarded as highly anomalous and of economic interest are reported The proportion of each hole represented by the reported intervals can be ascertained from the sum of the reported intervals divided by the total drill hole depth
a All assay results for drill holes included in the various Mineral Resource estimates have been considered and comprise results not necessarily regarded as anomalous
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 32
Criteria JORC Code Explanation Commentary
Other substantive exploration data
a Other exploration data if meaningful and material should be reported including (but not limited to) geological obser-vations geophysical survey results geochemical survey results bulk samples ndash size and method of treatment metallurgical test results bulk density groun d- water geotechnical and rock characteristics potential deleterious or contaminating substances
a No further exploration data is deemed material to the results presented in this release
Further work a The nature and scale of planned further work (eg tests for lateral extensions or depth extensions or large-scale step-out drilling)
a Diagrams clearly highlighting the areas of possible extensions including the main geological interpretations and future drilling areas provided this information is not commercially sensitive
a The nature and scale of planned further work will be determined following the completion of revised Mineral Resource estimation for the Thackaringa deposits scheduled for May 2017
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 31
Criteria JORC Code Explanation Commentary
Data aggregation methods
a In reporting Exploration Results weighting averaging techniques maximum andor minimum grade truncations (eg cutting of high grades) and cut-off grades are usually Material and should be stated
a Where aggregate intercepts incorporate short lengths of high grade results and longer lengths of low grade results the procedure used for such aggregation should be stated and some typical examples of such aggregations should be shown in detail
a The assumptions used for any reporting of metal equivalent values should be clearly stated
Drilling a Drill hole intercept grades are typically reported as down-hole
length-weighted averages with any non-recovered sample within the reported intervals treated as no grade The cut-off used for selecting significant intersections is selected to reflect the overall tenor of mineralisation in most cases 500ppm cobalt
a No top cuts have been applied when calculating average grades for reported significant intersections
a No metal equivalent values are reported
Relationship between mineralis- ation widths and intercept lengths
a These relationships are particularly important in the reporting of Exploration Results
a If the geometry of the mineralisation with respect to the drillhole angle is known its nature should be reported
a If it is not known and only the down hole lengths are reported there should be a clear statement to this effect (eg lsquodown hole length true width not knownrsquo)
a Drill holes at the Thackaringa project are typically angled at 50deg or 60deg and drilled perpendicular to the mineralised trend with drilling orientations adjusted along strike to accommodate folded geological sequences
a Mineralisation at the Big Hill and Railway prospects is steeply dipping and consequently mineralised intersections will be greater than true width At Pyrite Hill mineralisation is gently dipping and mineralised intersections will be close to true width
a There is insufficient geological knowledge to accurately estimate true widths and as such all drill intersections are reported as down hole lengths
Diagrams a Appropriate maps and sections (with scales) and tabulations of intercepts should be included for any significant discovery being reported These should include but not be limited to a plan view of drill hole collar locations and appropriate sectional views
a Appropriate maps and sections are presented in the accompa-nying ASX release
Balanced reporting
a Where comprehensive reporting of all exploration results is not practicable representative reporting of both low and high grades andor widths should be practiced to avoid misleading reporting of Exploration Results
a Only mineralised drill hole intersections regarded as highly anomalous and of economic interest are reported The proportion of each hole represented by the reported intervals can be ascertained from the sum of the reported intervals divided by the total drill hole depth
a All assay results for drill holes included in the various Mineral Resource estimates have been considered and comprise results not necessarily regarded as anomalous
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 32
Criteria JORC Code Explanation Commentary
Other substantive exploration data
a Other exploration data if meaningful and material should be reported including (but not limited to) geological obser-vations geophysical survey results geochemical survey results bulk samples ndash size and method of treatment metallurgical test results bulk density groun d- water geotechnical and rock characteristics potential deleterious or contaminating substances
a No further exploration data is deemed material to the results presented in this release
Further work a The nature and scale of planned further work (eg tests for lateral extensions or depth extensions or large-scale step-out drilling)
a Diagrams clearly highlighting the areas of possible extensions including the main geological interpretations and future drilling areas provided this information is not commercially sensitive
a The nature and scale of planned further work will be determined following the completion of revised Mineral Resource estimation for the Thackaringa deposits scheduled for May 2017
For
per
sona
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MARKET ANNOUNCEMENT ndash 04 MAY 2017 32
Criteria JORC Code Explanation Commentary
Other substantive exploration data
a Other exploration data if meaningful and material should be reported including (but not limited to) geological obser-vations geophysical survey results geochemical survey results bulk samples ndash size and method of treatment metallurgical test results bulk density groun d- water geotechnical and rock characteristics potential deleterious or contaminating substances
a No further exploration data is deemed material to the results presented in this release
Further work a The nature and scale of planned further work (eg tests for lateral extensions or depth extensions or large-scale step-out drilling)
a Diagrams clearly highlighting the areas of possible extensions including the main geological interpretations and future drilling areas provided this information is not commercially sensitive
a The nature and scale of planned further work will be determined following the completion of revised Mineral Resource estimation for the Thackaringa deposits scheduled for May 2017
For
per
sona
l use
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y