certificate of participation - alex stewart april 2019...managing director alex stewart...
TRANSCRIPT
Managing Director
Alex Stewart International Argentina
SA - Perito Moreno
Operations Manager
GEOSTATS PTY LTD
has participated in the April 2019
Geostats Survey of International Laboratories
S. Romero
Ph: (+618) 9314 2566, Fax: (+618) 9314 3699
Certificate of Participation
This is to certify that
Mining Industry Consultants
Reference Material Manufacture and Sales
www.geostats.com.au
20 Hines Road, O'Connor
WESTERN AUSTRALIA 6163
P.J. Hayes
Geostats Laboratory Survey
April 2019
Prepared for
Alex Stewart International Argentina SA - Perito Moreno
Confidential
To the reader,
Kind regards,
Stuart Romero BSc, BEng
Operations Manager | Geostats Pty Ltd
20 Hines Road, O'Connor, Western Australia 6163, Australia
Ph: +618 9314 2566 | Email: [email protected] | Website: www.geostats.com.au
It is not the intent of this survey to provide marketing tools for the analytical industry. A
laboratory report is available which identifies only the laboratory or group requesting the
report. This allows the laboratory to assess their performance in relation to the rest of the
analytical industry. All the laboratories identified have taken advantage of this report and
included it as part of their ongoing quality control procedures. Participation in these
surveys is an indication of the laboratory's interest in quality and should be regarded as a
positive sign regardless of the outcome.
Many thanks to both the laboratories and the Mining Houses for their ongoing support of
this survey.
THIS IS A CONFIDENTIAL DOCUMENT BETWEEN GEOSTATS PTY LTD, CLIENT MINING
HOUSES AND CLIENT ANALYTICAL COMPANIES.
THIS DOCUMENT SHOULD NOT BE CIRCULATED OUTSIDE THE COMPANY WHOSE
NAME APPEARS ON THE COVER.
This survey of laboratories undertaken by Geostats is performed as a service to both the
Mining Industry and the Analytical Industry. It is envisaged that it can be used as a tool for
the maintenance of high standards in both industries.
The report to the Mining Houses identifies most commercial laboratories and should be
treated as confidential information. Some commercial facilities prefer to pay for the
inclusion of their sites and these are not identified to the Mining Houses. This report
should not be circulated outside of the Client Company or reproduced for the benefit of
other mining groups.
Geostats Pty Ltd, O'Connor, Western Australia
Listing of Participating Laboratories for Round Robin - April 2019
Western Australia Kazakhstan
ALSM KAL ALS Minerals - Kalgoorlie ALSM AKBAKAY ALS Minerals - Akbakay
ALSM METALLURGY Ammtec Laboratory ALSM KAZAKHSTAN ALS Minerals - Kazakhstan
ALSM PERTH ALS Minerals - Perth Kyrgyz Republic
AURUM BECK Aurum Laboratories Pty Ltd SAEL KYRGYZSTAN Stewart Assay and Environmental Laboratories LLC
BV KAL Amdel Laboratory - Kalgoorlie Lao PDR
BV ULTRA TRACE Ultra Trace Pty Ltd ALSM LAOS ALS Minerals Vientiane (Laos)
GEKKO VICTORIA Gekko Assay Laboratory PHU BIA LAOS Phu Bia Mining Limited
GOLDEN GROVE EMR Golden Grove SEPON LAOS Lane Xang Minerals
GRANNYS Granny Smith Gold Mine Laboratory Mali
INT GEN PER Genalysis Laboratory Services Pty Ltd SADIOLA MALI Sadiola Mine Site Laboratory
JINNING WA Jinning Testing and Inspection SGS BAMAKO SGS Minerals Services (Bamako)
KAL PER Kalassay Group (Perth Assay Laboratory) SGS LOULO SGS Loulo
KALGOORLIE AL Kalassay Group (Kalgoorlie Assay Laboratory) SGS MALI GCEX Analabs Morila Laboratory
LABWEST LabWest SGS SYAMA SGS Minerals Syama Laboratory
MINANALYTICAL MinAnalytical Mauritania
NEWCREST TELFER Newcrest Mining Limited - Telfer Gold Mine Lab ALSM TASIAST ALS Minerals - Tasiast
SAR LAB Standard & Reference Laboratories MCM SA Mauritania Copper Mines SA
SGS JUNDEE SGS Jundee OMRG Office Mauritanien des Recherches Géologiques
SGS KALG SGS Kalgoorlie Mexico
SGS NEWBURN SGS Newburn ACTLABS MEXICO Actlabs Mexico SA de CV
SGS TROPICANA SGS Tropicana BV MINERALS MEX Inspectorate de México S.A. de C.V.
New South Wales MCEWEN MEXICO McEwen Mining Mexico
ALSM ORANGE ALS Minerals - Orange MULATOS SONORA Alamos Gold - Mulatos Mine
SGS WEST WYALONG SGS West Wyalong PENASQUITO Goldcorp - Penasquito
Northern Territory Mongolia
GRANITES Granites Gold Mine ALSM MONGOLIA ALS Group LLC
INT DARWIN Northern Territory Environmental Laboratories ALSM OY ALSM OY
Queensland SGS ULAAN SGS Mongolia LLC
ALSM BRIS ALS Minerals - Brisbane Namibia
ALSM MT ISA ALS Minerals - Mt Isa DUNDEE PMT Dundee Precious Metals Tsumeb
ALSM TVL ALS Minerals - Townsville New Zealand
CHEM LAB MIM Mount Isa Mines Analytical Laboratory SGS NZ MACRAES SGS New Zealand, Macraes Laboratory
EH MINE Ernest Henry Mine Laboratory SGS NZ WAIHI SGS New Zealand, Minerals Laboratory
GEN TOWNSVILLE Genalysis Testing Services, Townsville Papua New Guinea
HRLTESTING HRL Testing INTERTEK HV Intertek Hidden Valley
SGS TOWNSVILLE SGS Townsville ITS K92 PNG ITS (PNG) Limited K92 Laboratory
South Australia ITS MOROBE ITS (PNG) Limited
BV ADL Bureau Veritas Minerals - Thebarton LIHIR Lihir Gold - Minesite Laboratory
INT GEN ADEL Genalysis Laboratory Services - Adelaide OK TEDI Ok Tedi
Tasmania PORGERA Porgera Gold Mine Laboratory
ALSM BURNIE Burnie Research Laboratory Peru
Argentina ACT SKYLINE PERU Actlabs Skyline Peru SAC
ASA MENDOZA Alex Stewart International Argentina SA - Mendoza ALSM LIMA ALS Peru SA
ASA PERITO MORENO Alex Stewart International Argentina SA - Perito Moreno CERTIMIN Certimin S.A.
CERRO NEGRO Goldcorp - Cerro Negro CERTIMIN LA ARENA Certimin S.A. - La Arena
VELADERO MINE Veladero Project Assay Lab INSPECTORATE PERU Inspectorate Services Peru SAC
Brazil LAGUNAS MINE Minera Barrick Misquichilca - Unidad Lagunas Norte
PARACATU MINE Kinross Brasil Mineração SA NEW PERU Minera Yanacocha SRL - Newmont Lab (Peru)
SGS LF BELO HOR SGS Geosol Laboratórios Ltda PIERINA MINE Minera Barrick Misquichilca - Unidad Pierina
Bulgaria SGS LIMA SGS del Peru SAC
CHELOPECH MINE Chelopech Mine Laboratory VOLCAN CERRO Laboratorio Químico Óxidos - Cerro de Pasco
Burkina Faso VOLCAN CHUNGAR Laboratorio Químico Chungar
ALSM OUAGADOUGOU ALS Burkina SARL Philippines
IAMGOLD BF IAMGOLD Essakane SA ITS PHILIPPINES Intertek Testing Services Philippines
SEMAFO Semafo Burkina Faso Romania
SGS HOUNDE BF SGS Hounde ALSM ROMANIA ALS Romania
SGS OUAGADOUGOU SGS Burkina SA Russia
WESTAGO BF WESTAGO sarl ALSM MOSCOW Stewart Geochemical and Assay Ltd
Canada IRGIREDMET RUSSIA IRGIREDMET JSC
ACME VAN Bureau Veritas Commodities Canada Ltd - Vancouver KUPOL MINE Kupol Mine
ACTLABS CAN Activation Laboratories Ltd (Canada) LAMS RC JSC KRAS LAMS RC JSC KRAS
ACTLABS TB Activation Laboratories Ltd - Thunder Bay PAL JSC ALDAN PAL JSC ALDAN
AGAT ONTARIO AGAT Laboratories - Mississauga PAL JSC KRAS PAL JSC KRAS
AGAT TB AGAT Laboratories - Thunder Bay PAL JSC VERINSKOE PAL JSC VERINSKOE
ALSM QUEBEC ALS Minerals (Val d'Or) SGS CHITA SGS Chita
ALSM VAN ALS Minerals - Vancouver VSEGEI RUSSIA VSEGEI All-Russia Geological research Institute
BVCC TIMM Bureau Veritas Commodities Canada Ltd - Timmins Saudi Arabia
ELEONORE Goldcorp - Eleonore ALAMRI JEDDAH Al Amri Laboratory
FLIN FLON MINE Flin Flon Mine Laboratory ALSM JEDDAH ALS Minerals - Arabia
HEMLO MINE Williams Operating Corporation MAADEN SAUDI Maaden Gold and Base Metals Co
MAXXAM ONTARIO Maxxam Analytics International Corporation MBCC JABAL SAYID MBCC Jabal Sayid Mine
MCEWEN BLACK FOX McEwen Mining Black Fox Senegal
MS-ANALYTICAL MS Analytical SGS MAKO SGS Mako
MUSSELWHITE Musselwhite Mine Laboratory SGS SABODALA SGS Sabodala
NMAL TIMMINS Northern Mining Analytical Laboratory Serbia
PORCUPINE Goldcorp - Porcupine SGS BOR SGS Bor
RED LAKE Goldcorp - Red Lake South Africa
SGS COCHRANE SGS Cochrane AA TS Anglo Research, Crown Mines - BMP
SGS LAKEFIELD SGS Lakefield (Ontario) ALSM JOBURG ALS Minerals - Johannesburg
SGS VANCOUVER SGS Vancouver HARMONY WELKOM Harmony Assay Laboratory
TSL SASKATCHEWAN TSL Laboratories MINTEK SA Mintek Analytical Services Division
Chile RAPPA RESEARCH Rappa Research Laboratory
ALSM SANTIAGO ALS Minerals - Santiago SCI SER Scientific Services Pty Ltd
BV ANTOFAGASTA Bureau Veritas Mineral Chemical Analysis - Geoanalitica SGS BARBERTON Performance Laboratories Barberton
BV CALAMA Bureau Veritas S.G. Calama SGS PLW Performance Laboratories (PLW)
BV COQUIMBO BV Mineral Chemical Analysis - Geoanalitica Coquimbo SGS RANDFONTEIN Performance Laboratories (PLR)
BV IQUIQUE Bureau Veritas Iquique SGS VAAL RIVER SGS Vaal River
BV SANTIAGO Bureau Veritas Mining & Chemical Division - Cesmec SIBANYE BEATRIX Sibanyegold Beatrix Division
China SIBANYE CHARL Sibanyegold Analytical Laboratory Driefontein
ALSM CHINA ALS Minerals - Guangzhou (China) Suriname
ZIJIN TESTING CHINA Fujian Zijin Mining and Metallurgy Testing Technology Co., Ltd FILAB SURINAME Filab Suriname
Colombia NEW MERIAN Newmont - Merian Assay Lab
SGS COLOMBIA SGS Colombia Tanzania
Cote d'Ivoire BULYANHULU TANZ Bulyanhulu Mine Assay Lab
BV COTE Bureau Veritas Mineral Laboratories Cote d'Ivoire BUZWAGI Pangea Minerals Ltd
SGS AGBAOU CI SGS Côte d'Ivoire S.A. Agbaou GEITA TANZ Geita Gold Mine Laboratory
SGS ITY CI SGS Côte d'Ivoire S.A. ITY NORTH MARA North Mara Minesite Laboratory
Democratic Republic of Congo SGS MWANZA African Assay Laboratories (Tanzania) Ltd
FRONTIER DRC Frontier Mine Turkey
SGS KIBALI SGS Kibali ACME TURKEY Acme Analytical Laboratories Ltd - Turkey
SGS KIPOI SGS Laboratory - Kipoi AGLAB TURKEY AG Laboratory
SGS LUBUMBASHI SGS Lubumbashi ALSM TURKEY ALS Minerals - Turkey
SGS TWANGIZA SGS Twangiza CAYELI BAKIR TURKEY Cayeli Bakir Isletmeleri A.S.
Dominican Republic DEMIR ANKARA Demir Export Ankara
PUEBLO VIEJO Pueblo Viejo Laboratorio DEMIR SIVAS Demir Export Sivas
Egypt ESAN ECZACIBASI Esan Eczacibasi Endustriyel Hammaddeler San. Ve Tic. A.S.
SGM EGYPT Sukari Gold Mines ESAN ECZACIBASI IST Esan Eczacibasi Endustriyel Hammaddeler San. Ve Tic. A.S. - Istanbul
England KOTEKNA TURKEY Kotekna Gözetim A.Ş.
WARDELL ENGLAND Wardell Armstrong KOZAGOLD HIMMETDEDE Koza Gold Mine Himmetdede Laboratory
WHEAL JANE ENGLAND Wheal Jane Laboratory KOZAGOLD KAYMAZ Koza Gold Mine Kaymaz Laboratory
Eritrea KOZAGOLD MASTRA Koza Gold Mine Mastra Laboratory
SGS BISHA SGS Bisha KOZAGOLD TURKEY Koza Gold Mine Laboratory
Fiji SGS TURKEY SGS Turkey
VATUKOULA GM Vatukoula Gold Mine YEDITEPE UNIVERSITY ISTEK ARGE ANALİZ MERKEZLERİ TİCARET A.Ş.,
Finland United States of America
LABTIUM FIN Eurofins Labtium Oy AALLABS American Assay Laboratories
Ghana ACZ COLORADO ACZ Laboratories Inc
ALSM GHANA ALS Minerals - Ghana ALSM RENO ALS Minerals - Reno
ITS GHANA Intertek Minerals Ltd (Ghana) BALD MOUNT Bald Mountain Mine Assay Lab
NEW AHAFO GHANA Ahafo Mine Site Laboratory FLORIN RENO Florin Analytical Services
SGS TARKWA SGS Laboratories (Tarkwa) FLSMIDTH USA FLSmidth Analytical Lab
Guinea FORT KNOX Fort Knox Assay Lab
SGS SIGUIRI SGS Mineral Services (Guinee) SARL GOLD SUNLIGHT MINE Golden Sunlight Mine Assay Lab
Guyana GOLDSTRIKE Barrick Analytical Laboratory
ACTLABS GUYANA Actlabs Guyana Inc INSPECTORATE NEV Inspectorate America Corporation - Sparks
MS-ANALYTICAL GUYANA MS Analytical Guyana INTER-MOUNTAIN USA Inter-Mountain Laboratories
India MCCLELLAND NEV McClelland Laboratories, Inc.
SHIVA INDIA Shiva Analyticals (India) Ltd NEW GC Newmont Mining Corporation - Carlin Assay Lab
Indonesia NEW LONE Newmont - Lone Tree Mine
GEOSERVICES IND PT Geoservices Ltd NEW MET SER Newmont Metallurgical Services
ITS GOSOWONG Gosowong Gold Project Lab NEW TWIN CM Newmont - Twin Creek Mine
ITS INDO Intertek Testing Services, Jakarta ROUND MOUNT MINE Round Mountain Gold Assay Lab
ITS UTAMA Intertek Utama Services Manado TURQ RIDGE MINE Turquoise Ridge JV Mine Assay Lab
MIRAH KBK INDO KBK Mirah Site Laboratory Zambia
PT SUCOFINDO DENPASAR Sucofindo Denpasar Laboratory KANSANSHI ZAMBIA Kansanshi Mining PLC
PT SUCOFINDO TIMIKA Sucofindo Timika Laboratory LUMWANA MINE Lumwana Mine Site Lab
SUCOFINDO CIBITUNG Sucofindo Cibitung Laboratory SGS KALULUSHI SGS Inspection Services Zambia
WAY LINGGO PT Geoservices Ltd - Way Linggo Zimbabwe
WETAR PT Geoservices Ltd - Wetar ANTECH Antech Laboratories
Iran BINDURA ZIM Bindura Nickel Corporation Limited
BINALOUD IRAN Kansaran Binaloud Co. PERF ZIMBABWE Performance Laboratories Zimbabwe
ZARAZMA TEHRAN Zarazma Minerals Studies Company
Ireland Commercial Laboratory Laboratory that reported some results after the database was closed.
ALSM IRELAND Omac Laboratories - Ireland Minesite Laboratory
BOLIDEN TARA Boliden Tara Mines Government Laboratory
International Laboratory Round Robin Geostats Pty Ltd
April 2019 Survey Report
April 2019 Report Page i
REPORT ON LABORATORY SURVEY – April 2019
• 5 low level gold samples
• 6 gold and silver on carbon samples
• 10 geochemical base metal samples
A round robin to measure the accuracy of gold, silver, sulphur and base metal analyses from 230 laboratories
was conducted during April 2019. The results of this survey are a measure of the ability of a laboratory to
accurately analyse a pre-prepared pulp.
The ability of a laboratory to crush, split and prepare the sample without contamination is not measured by this
survey. Knowledge of sampling machinery and the ability to design efficient flow systems with in-built
homogeneity checks is required in order to develop confidence in the sample preparation.
The samples submitted to the laboratories consisted of:
• 10 gold samples
The base metal samples were analysed for copper, lead, zinc, nickel, arsenic, silver and cobalt. The method of
analysis for base metal samples was left to the discretion of the laboratory manager. However, the report
groups them into Total (typically 4 acid digest or fusion) and Partial (all others, mainly aqua regia) methods.
Maxxam Ontario performed Neutron Activation Analysis and these have been included in the Total digest
group. Methods are listed in the results page for the respective analyte.
• 6 ore-grade base metal samples
GOLD SAMPLES
GOLD AND SILVER ON CARBON SAMPLES
Three lots of gold samples were submitted to the laboratories, one lot for fire assay, one for aqua regia digest
(or similar) and one for low-level gold. Maxxam Canada performed Neutron Activation Analysis on all samples,
reporting a gold + 33 element analysis which has been included at the end of this report. Maxxam Ontario can
be contacted through Christine MacDermid at [email protected]
Six gold and silver on carbon samples were included in this survey, both loaded and barren. The method of
analysis for these samples was left up to the individual laboratories.
• 10 sulphur and carbon samples
Companies operating more than one laboratory have received extra filler samples, which are not used in the
calculations. The Geostats numbering system makes it extremely difficult for any comparison of results from
one laboratory to the next. This provides a level playing field for all laboratories, whether they are sole
operators or members of a large laboratory group.
We use a double entry system to build an accurate database. Two individuals enter all the data and when
complete these two files are cross-checked and the source data is consulted to rectify any errors. The mean
values used for calculations in this study are checked visually by preparing histograms. Outliers are removed
and the remaining population distributions are tested for normality. All outliers are checked back to the original
assay report for a third and final time.
GEOCHEM BASE METAL SAMPLES
International Laboratory Round Robin Geostats Pty Ltd
April 2019 Survey Report
April 2019 Report Page ii
2. Bar chart for each element showing the sum of absolute standardised values divided by the count of
absolute standardised values.
ORE GRADE BASE METAL SAMPLES
f. maximum
g. error (95% Confidence Interval)
4. Run outlier macro to find obvious outlier values.
5. Generate 'Z' intervals for remaining data (from calculated mean).
6. Check that median and mean are similar to verify a normal distribution.
7. Standardise remaining values i.e. subtract the mean and divide by the standard deviation.
h. percentage error of mean (error as a percentage of the calculated mean).
3. Produce summary statistics and assay sheet.
e. minimum
2. Produce basic statistics on results, including:
a. count
Six ore-grade and/or concentrate samples are included in the survey. These are assayed primarily for copper,
lead, zinc, nickel, silver and sulphur. Other elements are reported but not in sufficient numbers for inclusion in
the report. These high-grade materials are analysed at the chemist’s discretion but almost always using ore-
grade techniques. Some use classical analyses while others use XRF or other methods. However, some of
these products have, for example, high lead but low copper and the method for copper analysis may be
inappropriate for low levels. Owing to this characteristic, only higher grade analyses are plotted in the related
charts.
1. A table showing values as reported from the laboratories. These are presented in columns according to their
respective sample identifiers, with each result's standardised Z value also displayed. Outliers are highlighted
and assigned a Z value of 3.00 or -3.00. General statistics are listed at the top of each table.
1. Double entry of all data and validation by cross-checking. Confirm any anomalous values.
b. mean
c. median
The results of the analyses are presented in three forms:
3. Bar chart for the mean of standardised values.
d. standard deviation
SULPHUR SAMPLES
RESULTS
All of the certified reference materials used in this survey are available for purchase.
Ten samples for sulphur and carbon analysis were prepared for the survey. These ten new samples are a good
mix of values with sulphur values up to 23% and carbon values up to 0.5%.
EXAMINATION OF RESULTS - METHODOLOGY
International Laboratory Round Robin Geostats Pty Ltd
April 2019 Survey Report
April 2019 Report Page iii
10. Add absolute values from each laboratory in 'standardised values' calculations.
11. Divide result by count of results to calculate average absolute standard value for laboratory performance on
each element.
INTERPRETATION OF RESULTS
These charts show the mean of standardised values with negative values included. A direction of error or bias
can be interpreted from laboratories showing high values, negative or positive.
The 'Mean of Standardised Values' charts (blue in reports) indicate any bias shown by laboratories on a
particular element, but do not show any general error which might be plus and minus the mean. The 'Mean of
Absolute Standardised Values' charts (red in reports) indicate the general error but no bias.
12. Produce ‘Mean of Absolute Standardised Values’ Bar Charts.
CHARTS
SUMMARY STATISTICS AND ASSAY TABLES
MEAN OF STANDARDISED VALUES (BLUE CHARTS)
These tables are self-explanatory. The row titled 'error' refers to the margin of error expected at 95%
confidence. That is, the standard normal probability or 'Z' statistic representing 95% (1.96) is multiplied by the
standard deviation and the result is divided by the square root of the population. We can be 95% confident that
the true mean lies between mean minus error and mean plus error. The row titled '% error in mean' is simply
this margin of error expressed as a percentage of the calculated mean. Outliers are highlighted and not used
for calculations at the top of the tables.
STANDARDISED VALUES
These numbers are generated using the following formula. Reported value minus the mean, result of this
divided by the standard deviation. This creates a new distribution with mean '0' and standard deviation '1'.
Positive and negative numbers result from this calculation depending on whether the reported value is above
or below the mean. Laboratories reporting outliers are manually assigned 3.00 or -3.00 as these results have
been removed from automatic calculation. The higher the absolute number reported, the further the reported
assay is from the calculated mean.
MEAN OF ABSOLUTE STANDARDISED VALUES (RED CHARTS)
9. Produce 'Mean of Standardised Values' Bar Charts.
The bar representing each laboratory is the mean of the sum of the absolute standardised values reported on
all assays of the element in question. That is, the absolute sum of the rows in the Standardised Values Table
divided by the number of assays. These charts give a visual representation to the general error shown by the
particular laboratories. These charts do not show bias.
8. Add results from each laboratory in 'standardised values' calculations (positive and negative) and divide by
count.
International Laboratory Round Robin Geostats Pty Ltd
April 2019 Survey Report
1A 1 Acid Digest AAS
2A 2 Acid Digest DIBK DIBK Extraction
3A 3 Acid Digest ES ICP - Emission Spectroscopy
4A 4 Acid Digest GRAV Gravimetric
5A 5 Acid Digest ICP Inductively Coupled Plasma - Unspecified
AD Acid Digest IR Infrared
AR Aqua Regia MS ICP - Mass Spectroscopy
CSA Carbon and Sulphur Analyser TITR Titration
FA Fire Assay XRF
FUS Fusion
GF Graphite Furnace
IH In House Method
MICR Microwave
NAA Neutron Activation Analysis
PP Pressed Powder
PR Pre-Roast
TITR Titration
VOL Volumetric
April 2019 Report Page iv
The ore grade base metal material GBM914-14 was found to perform poorly, particularly for lead. The results
on this material do not contribute towards the error charts.
LEGEND FOR METHODS & READINGS
ADDITIONAL COMMENTS
Atomic Absorption Spectroscopy
X-Ray Fluorescence
METHODS READINGS
Bias is indicated in negative/positive column charts (blue charts).
The column charts show indications of error or direction of error - check the real data in the tables before
coming to any decision as to the significance of this error. Also pay attention to the grade of the standard
materials with regard to the laboratory level of detection. Some laboratories may report outliers due to the
limitations of their methodology.
BRIEFLY
General error is indicated in absolute column charts (red charts).
CONTENTS
RESULTS OF ANALYSES PRESENTED AS TABLES AND PLOTS
GOLD SAMPLES Pages
Fire Assay Gold 1 & 2
Aqua Regia Digest Gold 3 & 4
Low Grade Gold 5 & 6
Au & Ag IN CARBON SAMPLES
Gold On Carbon 7 & 8
Silver On Carbon 9 & 10
BASE METAL SAMPLES
Silver (Total Digest) 11 & 12
Silver (Partial Digest) 13 & 14
Copper (Total Digest) 15 & 16
Copper (Partial Digest) 17 & 18
Lead (Total Digest) 19 & 20
Lead (Partial Digest) 21 & 22
Zinc (Total Digest) 23 & 24
Zinc (Partial Digest) 25 & 26
Nickel (Total Digest) 27 & 28
Nickel (Partial Digest) 29 & 30
Arsenic (Total Digest) 31 & 32
Arsenic (Partial Digest) 33 & 34
Cobalt (Total Digest) 35 & 36
Cobalt (Partial Digest) 37 & 38
ORE GRADE BASE METAL SAMPLES
Copper 39 & 40
Lead 41 & 42
Zinc 43 & 44
Nickel 45 & 46
Silver 47 & 48
Sulphur 49 & 50
SULPHUR SAMPLES
Sulphur 51 & 52
Carbon 53 & 54
OTHER
MAXXAM NAA Results 55
Laboratory Summary Report 56
FA50 Gold Round Robin - Summary Statistics, Assays, Standardised Values and Graphs - April 2019
Standard Reference G319-1 G319-2 G319-3 G319-4 G319-5 G319-6 G319-7 G319-8 G319-9 G319-10
MEAN (ppm) 1.37 3.96 4.92 0.50 3.92 3.99 2.29 1.71 97.32 50.30
STDEV (ppm) 0.06 0.12 0.16 0.03 0.12 0.12 0.07 0.06 2.62 1.50
95% CI (ppm) 0.01 0.02 0.02 0.00 0.02 0.02 0.01 0.01 0.40 0.22
95% CI (%) 0.66% 0.44% 0.46% 0.78% 0.46% 0.45% 0.47% 0.54% 0.41% 0.45% 50 gram Fire Assay - Mean of Absolute Standardized Values - April 2019MIN (ppm) 1.19 3.64 4.48 0.43 3.56 3.66 2.09 1.54 90.03 46.09
MEDIAN (ppm) 1.37 3.96 4.94 0.50 3.92 4.00 2.29 1.71 97.58 50.34
MAX (ppm) 1.55 4.27 5.36 0.57 4.26 4.33 2.49 1.87 104.88 53.90
IQR (ppm) 0.07 0.15 0.15 0.03 0.15 0.14 0.09 0.08 3.03 1.53
COUNT 184 179 181 173 181 181 180 177 164 173
Standard Reference G319-1 G319-2 G319-3 G319-4 G319-5 G319-6 G319-7 G319-8 G319-9 G319-10
Lab Reference assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score
MAXXAM ONTARIO 1.40 0.51 4.00 0.33 5.40 3.00 0.50 0.09 3.94 0.19 4.10 0.92 2.35 0.78 1.75 0.63 102.00 1.79 53.00 1.80 NAA
ASA MENDOZA 1.36 -0.13 3.99 0.25 4.98 0.36 0.47 -1.06 4.01 0.75 4.04 0.43 2.32 0.38 1.71 0.00 94.36 -1.13 50.34 0.03 FA AAS
ASA PERITO MORENO 1.31 -0.93 3.90 -0.50 4.93 0.04 0.47 -1.06 3.86 -0.45 3.91 -0.62 2.33 0.52 1.67 -0.64 92.30 -1.92 49.20 -0.73 FA AAS
COMLAB 1.38 0.19 4.05 0.75 5.21 1.84 0.49 -0.29 3.99 0.59 4.02 0.27 2.30 0.11 1.71 0.00 95.50 -0.69 48.10 -1.46 FA AAS,GRAV
COMLAB 1.49 1.95 4.15 1.58 5.08 1.01 0.51 0.47 3.89 -0.21 4.08 0.76 2.21 -1.10 1.74 0.47 98.13 0.31 50.87 0.38 FA AAS
COMLAB 1.41 0.64 4.21 2.05 5.30 2.44 0.51 0.32 4.13 1.73 4.21 1.84 2.35 0.78 1.77 0.95 103.11 2.22 53.74 2.29 FA AAS
COMLAB 1.38 0.19 3.98 0.17 4.93 0.04 0.50 0.09 3.98 0.51 4.03 0.35 2.30 0.11 1.73 0.31 99.40 0.80 49.90 -0.26 FA AAS
COMLAB 1.38 0.25 3.82 -1.20 4.92 0.00 0.48 -0.60 3.85 -0.54 3.98 -0.03 2.34 0.58 1.66 -0.86 97.40 0.03 47.51 -1.85 FA AAS,GRAV
COMLAB 5.50 3.00 5.60 3.00 3.60 -3.00 2.50 3.00 5.30 3.00 6.00 3.00 4.20 3.00 3.30 3.00 93.50 -1.46 49.50 -0.53 FA
COMLAB 1.34 -0.45 3.97 0.08 4.92 -0.02 0.49 -0.22 3.96 0.35 4.07 0.68 2.28 -0.16 1.68 -0.48 98.10 0.30 50.50 0.13 FA AAS
COMLAB 1.19 -2.82 3.56 -3.00 4.70 -1.42 0.32 -3.00 3.52 -3.00 2.62 -3.00 1.76 -3.00 1.46 -3.00 83.26 -3.00 40.69 -3.00 FA AAS
COMLAB 1.46 1.47 4.03 0.58 5.13 1.33 0.52 0.86 4.05 1.07 4.21 1.81 2.38 1.19 1.83 1.90 99.85 0.97 50.33 0.02 FA AAS
COMLAB 1.36 -0.13 3.90 -0.50 4.89 -0.22 0.50 0.09 3.82 -0.77 4.01 0.19 2.26 -0.43 1.74 0.47 98.60 0.49 50.60 0.20 FA AAS
COMLAB 1.42 0.83 4.14 1.50 5.06 0.88 0.50 0.09 4.02 0.83 4.29 2.45 2.24 -0.70 1.81 1.58 94.90 -0.92 50.10 -0.13 FA AAS
COMLAB 1.42 0.83 4.04 0.67 5.03 0.68 0.50 0.09 3.91 -0.05 4.22 1.89 2.30 0.11 1.70 -0.16 99.40 0.80 51.10 0.53 FA AAS
COMLAB 1.35 -0.29 3.88 -0.67 4.95 0.17 0.52 0.86 3.79 -1.01 3.92 -0.54 2.29 -0.02 1.67 -0.64 97.00 -0.12 49.60 -0.46 FA AAS
COMLAB 1.38 0.19 4.08 1.00 5.09 1.07 0.49 -0.29 4.00 0.67 4.16 1.40 2.31 0.25 1.74 0.47 97.40 0.03 51.00 0.47 FA AAS
COMLAB 1.40 0.51 3.93 -0.25 4.94 0.10 0.49 -0.29 3.96 0.35 3.97 -0.13 2.25 -0.56 1.69 -0.32 91.50 -2.22 51.20 0.60 FA AAS
COMLAB 1.38 0.19 3.98 0.17 5.00 0.49 0.50 0.09 3.99 0.59 4.18 1.56 2.37 1.05 1.71 0.00 97.20 -0.04 49.90 -0.26 FA ICP
COMLAB 1.33 -0.61 3.95 -0.08 4.72 -1.31 0.48 -0.68 3.83 -0.69 3.81 -1.42 2.23 -0.83 1.64 -1.12 96.20 -0.43 50.60 0.20 FA AAS
COMLAB 1.49 1.95 4.10 1.17 5.05 0.81 0.48 -0.68 3.88 -0.29 4.05 0.51 2.14 -2.04 1.70 -0.16 100.00 1.03 51.40 0.73 FA AAS
COMLAB 1.33 -0.61 3.82 -1.17 4.72 -1.31 0.46 -1.44 3.97 0.43 4.04 0.43 2.34 0.65 1.69 -0.32 98.20 0.34 49.90 -0.26 FA AAS
COMLAB 1.28 -1.41 3.96 0.00 4.78 -0.93 0.47 -1.21 4.02 0.83 3.88 -0.86 2.26 -0.43 1.66 -0.80 97.80 0.19 49.90 -0.26 FA AAS,GRAV
COMLAB 1.35 -0.29 4.00 0.33 5.11 1.20 0.50 0.09 3.98 0.51 4.15 1.32 2.32 0.38 1.77 0.95 95.70 -0.62 51.60 0.87 FA ES
COMLAB 1.38 0.19 3.96 0.00 5.00 0.49 0.49 -0.29 3.84 -0.61 3.90 -0.70 2.26 -0.43 1.69 -0.32 97.60 0.11 50.20 -0.07 FA AAS
COMLAB 1.38 0.19 3.98 0.17 5.02 0.62 0.50 0.09 3.98 0.51 4.04 0.43 2.33 0.52 1.77 0.95 97.20 -0.04 50.11 -0.13 FA AAS
COMLAB 1.34 -0.45 3.78 -1.50 4.78 -0.93 0.47 -1.06 3.88 -0.29 3.90 -0.70 2.27 -0.29 1.67 -0.64 93.70 -1.38 49.90 -0.26 FA AAS
COMLAB 1.29 -1.25 3.94 -0.17 4.92 -0.02 0.47 -1.06 3.92 0.03 3.93 -0.46 2.34 0.65 1.65 -0.96 97.60 0.11 50.50 0.13 FA AAS
COMLAB 1.30 -1.09 3.97 0.08 4.98 0.36 0.48 -0.68 3.99 0.59 4.02 0.27 2.35 0.78 1.62 -1.43 93.90 -1.30 50.60 0.20 FA AAS
COMLAB 1.34 -0.45 3.96 0.00 4.88 -0.28 nr nr 3.89 -0.21 4.01 0.19 2.30 0.11 1.69 -0.32 95.60 -0.66 50.60 0.20 FA AAS,GRAV
COMLAB 1.37 -0.05 3.92 -0.33 4.86 -0.41 0.48 -0.56 3.86 -0.45 4.02 0.27 2.30 0.11 1.71 -0.08 97.50 0.07 50.10 -0.13 FA AAS,GRAV
COMLAB 1.37 0.03 4.06 0.83 5.04 0.75 0.50 0.09 3.99 0.59 4.21 1.81 2.35 0.78 1.70 -0.16 98.00 0.26 51.40 0.73 FA AAS
COMLAB 1.38 0.19 3.96 0.00 4.95 0.17 0.49 -0.29 3.97 0.43 4.04 0.43 2.29 -0.02 1.71 0.00 99.00 0.64 50.60 0.20 FA GRAV
COMLAB 1.37 -0.05 3.89 -0.58 4.88 -0.28 0.48 -0.60 3.87 -0.37 3.99 0.03 2.22 -0.97 1.71 0.00 97.30 -0.01 49.50 -0.53 FA AAS,GRAV
COMLAB 1.42 0.83 3.93 -0.25 5.03 0.68 0.49 -0.29 3.96 0.35 4.09 0.84 2.27 -0.29 1.77 0.95 100.50 1.22 51.80 1.00 FA AAS
COMLAB 1.40 0.51 3.96 0.00 5.19 1.71 0.43 -2.59 4.04 0.99 4.15 1.32 2.26 -0.43 1.77 0.95 97.50 0.07 48.20 -1.39 FA AAS
COMLAB 1.35 -0.29 3.95 -0.08 4.83 -0.60 0.49 -0.29 3.94 0.19 3.91 -0.62 2.29 -0.02 1.70 -0.16 97.20 -0.04 50.60 0.20 FA AAS
COMLAB 1.38 0.22 3.98 0.17 5.13 1.33 0.49 -0.14 4.07 1.22 4.27 2.25 2.43 1.84 1.67 -0.62 99.78 0.94 50.10 -0.13 FA ICP
COMLAB 1.50 2.11 3.95 -0.08 4.79 -0.86 0.56 2.39 4.16 1.96 4.03 0.35 2.31 0.25 1.77 0.95 122.58 3.00 56.44 3.00 FA AAS
COMLAB 1.33 -0.61 4.03 0.58 4.60 -2.09 0.44 -2.21 3.91 -0.05 5.05 3.00 2.35 0.78 1.85 2.22 98.00 0.26 50.00 -0.20 FA
COMLAB 1.32 -0.77 4.01 0.42 4.91 -0.09 0.49 -0.29 3.77 -1.18 3.99 0.03 2.33 0.52 1.68 -0.48 97.74 0.16 49.55 -0.50 FA AAS
COMLAB 1.38 0.22 3.99 0.27 5.00 0.48 0.48 -0.75 3.84 -0.65 4.00 0.09 2.31 0.18 1.72 0.17 92.80 -1.72 48.50 -1.20 FA ES,GRAV
COMLAB 1.38 0.19 3.99 0.25 4.91 -0.09 0.50 0.09 3.95 0.27 4.02 0.27 2.26 -0.43 1.72 0.16 96.60 -0.27 50.20 -0.07 FA AAS
COMLAB 1.41 0.67 4.05 0.75 4.94 0.10 0.50 0.09 3.95 0.27 4.01 0.19 2.32 0.38 1.65 -0.96 >10.00 ald 5.42 -3.00 FA AAS
COMLAB 1.41 0.67 3.92 -0.33 4.96 0.23 0.50 0.09 4.01 0.75 3.95 -0.29 2.38 1.19 1.65 -0.96 nr nr nr nr FA AAS
COMLAB 1.47 1.63 4.04 0.67 5.19 1.71 0.53 1.24 3.92 0.03 4.14 1.24 2.56 3.00 1.72 0.16 >100.00 ald 53.90 2.39 FA AAS
COMLAB 1.36 -0.13 3.91 -0.42 4.75 -1.12 0.44 -2.21 3.80 -0.93 3.87 -0.94 2.37 1.05 1.64 -1.12 96.20 -0.43 48.30 -1.33 FA AAS
COMLAB 1.45 1.34 4.04 0.68 4.85 -0.48 0.52 0.97 4.03 0.94 4.11 1.03 2.39 1.30 1.81 1.52 100.90 1.37 50.40 0.07 FA AAS,GRAV
COMLAB 1.36 -0.13 4.00 0.33 4.88 -0.28 0.48 -0.75 3.84 -0.61 3.96 -0.21 2.28 -0.16 1.70 -0.16 98.80 0.57 50.70 0.27 FA ES
COMLAB 1.39 0.40 3.83 -1.10 4.87 -0.37 0.49 -0.22 3.94 0.15 3.99 -0.01 2.34 0.65 1.74 0.54 89.40 -3.00 50.70 0.27 FA AAS,GRAV
COMLAB 1.42 0.89 3.90 -0.50 4.90 -0.15 0.48 -0.60 3.90 -0.13 4.00 0.11 2.27 -0.27 1.75 0.68 96.80 -0.20 50.90 0.40 FA AAS,GRAV
COMLAB 1.32 -0.79 3.92 -0.33 4.87 -0.32 0.48 -0.87 3.90 -0.12 4.00 0.09 2.21 -1.06 1.63 -1.31 105.20 3.00 53.50 2.13 FA AAS,GRAV
COMLAB 1.40 0.51 3.69 -2.25 4.92 -0.02 0.49 -0.29 3.86 -0.45 3.93 -0.46 2.25 -0.56 1.66 -0.80 99.10 0.68 48.20 -1.39 FA AAS
COMLAB 1.39 0.35 3.96 0.00 5.04 0.75 0.50 0.09 3.93 0.11 4.00 0.11 2.35 0.78 1.70 -0.16 96.40 -0.35 50.00 -0.20 FA AAS
COMLAB 1.40 0.51 4.01 0.42 5.01 0.56 0.54 1.62 3.99 0.59 3.99 0.03 2.34 0.65 1.74 0.47 98.64 0.51 50.63 0.22 FA AAS,GRAV
COMLAB 1.20 -2.69 3.05 -3.00 4.30 -3.00 0.50 0.09 3.90 -0.13 3.45 -3.00 2.25 -0.56 1.35 -3.00 77.90 -3.00 41.95 -3.00 FA
COMLAB 1.39 0.28 4.16 1.67 5.16 1.53 0.49 -0.49 4.15 1.90 4.16 1.39 2.32 0.33 1.75 0.57 98.20 0.34 50.90 0.40 FA AAS,GRAV
COMLAB 1.55 2.86 4.07 0.89 5.00 0.48 0.55 2.08 3.94 0.16 4.03 0.38 2.32 0.31 1.75 0.63 95.51 -0.69 48.93 -0.91 FA AAS
COMLAB 1.34 -0.45 3.65 -2.59 4.76 -1.06 0.40 -3.00 3.88 -0.29 3.80 -1.51 2.22 -0.97 1.59 -1.91 96.40 -0.35 49.90 -0.26 AR AAS
COMLAB 1.40 0.51 3.75 -1.75 4.95 0.17 0.50 0.09 3.98 0.51 3.85 -1.10 2.38 1.19 1.66 -0.80 99.50 0.83 51.00 0.47 FA AAS
COMLAB 1.26 -1.73 4.08 1.00 5.12 1.26 0.50 0.09 4.08 1.31 4.08 0.76 2.22 -0.97 1.65 -0.96 98.43 0.43 49.99 -0.20 FA AAS
COMLAB 1.58 3.00 3.93 -0.25 4.97 0.30 0.69 3.00 4.01 0.75 4.03 0.35 2.40 1.46 1.83 1.90 97.45 0.05 49.78 -0.34 FA GRAV
COMLAB 1.43 0.99 4.08 1.00 5.00 0.49 0.55 2.01 3.88 -0.29 4.10 0.92 2.32 0.38 1.90 3.00 99.04 0.66 50.87 0.38 FA AAS,GRAV
COMLAB 1.28 -1.41 3.61 -2.92 4.53 -2.54 0.48 -0.68 3.70 -1.74 3.66 -2.64 2.07 -2.99 1.61 -1.59 94.59 -1.04 48.34 -1.30 FA AAS
COMLAB 1.40 0.51 4.07 0.92 4.76 -1.06 0.50 0.09 3.86 -0.45 4.09 0.84 2.31 0.25 1.74 0.47 92.39 -1.88 48.12 -1.45 FA AAS
COMLAB 1.35 -0.24 4.09 1.11 4.75 -1.12 0.47 -1.06 4.06 1.18 4.12 1.11 2.28 -0.17 1.73 0.23 97.84 0.20 49.02 -0.85 FA AAS
COMLAB 1.33 -0.67 3.92 -0.33 4.74 -1.17 0.46 -1.33 3.89 -0.21 3.89 -0.79 2.24 -0.70 1.66 -0.75 92.10 -1.99 48.55 -1.16 FA ES
COMLAB 1.32 -0.77 3.97 0.08 4.95 0.17 0.50 0.09 3.98 0.51 4.00 0.11 2.29 -0.02 1.77 0.95 108.91 3.00 53.13 1.88 FA AAS
COMLAB 1.40 0.51 4.18 1.83 4.98 0.36 0.49 -0.29 4.10 1.47 3.93 -0.46 2.39 1.32 1.75 0.63 >50.00 ald >50.00 ald FA AAS
COMLAB 1.37 0.03 3.91 -0.42 4.98 0.36 0.50 0.09 3.94 0.19 4.00 0.11 2.33 0.52 1.71 0.00 97.20 -0.04 51.10 0.53 FA AAS
COMLAB 1.42 0.83 3.95 -0.08 4.95 0.17 0.53 1.24 3.86 -0.45 4.00 0.11 2.31 0.25 1.78 1.11 100.00 1.03 52.70 1.60 FA AAS
COMLAB 1.39 0.35 4.01 0.42 5.07 0.94 0.48 -0.68 3.98 0.51 3.95 -0.29 2.30 0.11 1.75 0.63 100.16 1.09 50.30 0.00 FA AAS
COMLAB 1.35 -0.29 3.94 -0.17 4.80 -0.80 0.45 -1.83 4.02 0.83 4.08 0.76 2.28 -0.16 1.70 -0.16 97.76 0.17 50.53 0.15 FA ES
COMLAB 1.39 0.35 4.06 0.83 5.05 0.81 0.49 -0.29 3.89 -0.21 3.96 -0.21 2.27 -0.29 1.71 0.00 80.87 -3.00 50.47 0.11 FA ES
COMLAB 1.47 1.63 3.93 -0.25 4.95 0.17 0.55 2.01 3.90 -0.13 4.02 0.27 2.25 -0.56 1.67 -0.64 98.60 0.49 50.70 0.27 FA AAS,GRAV
COMLAB 1.39 0.35 4.00 0.30 4.92 -0.04 0.50 0.01 3.88 -0.32 3.82 -1.33 2.18 -1.52 1.73 0.38 95.72 -0.61 51.07 0.51 FA AAS
COMLAB 1.49 1.95 4.21 2.09 5.02 0.62 0.63 3.00 4.31 3.00 3.88 -0.86 2.48 2.54 1.82 1.74 106.00 3.00 51.40 0.73 FA ES
COMLAB 1.36 -0.13 3.94 -0.17 4.89 -0.22 0.50 0.09 3.84 -0.61 3.99 0.03 2.25 -0.56 1.74 0.47 98.68 0.52 50.94 0.43 FA AAS,GRAV
COMLAB nr nr nr nr nr nr 0.48 -0.68 3.65 -2.14 3.95 -0.29 nr nr 1.41 -3.00 96.76 -0.21 nr nr FA AAS,GRAV
COMLAB 1.25 -1.89 3.51 -3.00 5.00 0.49 0.49 -0.29 3.98 0.51 3.95 -0.29 3.52 3.00 1.54 -2.70 96.20 -0.43 50.88 0.39 FA AAS,GRAV
COMLAB 1.36 -0.13 4.05 0.75 4.97 0.30 0.49 -0.29 3.98 0.51 3.95 -0.29 2.29 -0.02 1.62 -1.43 97.82 0.19 51.21 0.61 FA AAS
COMLAB 1.36 -0.13 3.97 0.08 4.95 0.17 0.48 -0.68 3.81 -0.85 3.92 -0.54 2.28 -0.16 1.69 -0.32 99.58 0.87 51.61 0.87 FA GRAV
COMLAB 1.42 0.83 4.00 0.33 5.02 0.62 1.47 3.00 3.98 0.51 3.95 -0.29 2.10 -2.58 1.72 0.16 >50.00 ald 48.53 -1.18 FA AAS
COMLAB 1.24 -2.05 3.87 -0.75 4.90 -0.15 0.48 -0.68 3.90 -0.13 3.99 0.03 2.29 -0.04 1.68 -0.48 97.60 0.11 51.40 0.73 FA AAS
COMLAB 1.42 0.83 3.87 -0.75 4.96 0.23 0.46 -1.44 3.67 -1.98 3.74 -1.99 2.25 -0.56 1.70 -0.16 69.16 -3.00 47.18 -2.07 FA AAS
COMLAB 1.33 -0.61 3.97 0.08 4.96 0.23 0.45 -1.83 3.91 -0.05 3.95 -0.29 2.28 -0.16 1.69 -0.32 100.50 1.22 52.20 1.26 FA AAS
COMLAB 1.34 -0.45 4.05 0.75 4.94 0.10 0.49 -0.29 3.91 -0.05 3.90 -0.70 2.13 -2.18 1.76 0.79 97.20 -0.04 49.10 -0.80 FA GRAV
COMLAB 1.38 0.19 4.02 0.50 4.98 0.36 0.54 1.62 3.92 0.03 3.99 0.03 2.30 0.11 1.70 -0.16 99.06 0.67 51.14 0.56 FA AAS
COMLAB 1.39 0.35 4.19 1.92 4.86 -0.41 0.53 1.24 3.94 0.19 4.00 0.11 2.36 0.92 1.69 -0.32 98.69 0.53 50.49 0.13 FA
COMLAB 1.34 -0.45 3.78 -1.50 4.72 -1.31 0.49 -0.29 3.89 -0.21 3.92 -0.54 2.29 -0.02 1.62 -1.43 98.41 0.42 51.15 0.57 FA AAS,GRAV
COMLAB 1.39 0.35 4.04 0.67 4.90 -0.15 0.51 0.47 3.84 -0.61 3.96 -0.21 2.27 -0.29 1.72 0.16 97.40 0.03 48.60 -1.13 FA AAS
COMLAB 1.35 -0.29 3.87 -0.75 4.93 0.04 0.49 -0.29 3.81 -0.85 4.02 0.27 2.34 0.65 1.75 0.63 96.30 -0.39 51.30 0.67 FA,PR AAS
COMLAB 1.40 0.51 3.90 -0.50 4.77 -0.99 0.48 -0.68 3.83 -0.69 3.93 -0.46 2.25 -0.56 1.71 0.00 96.80 -0.20 50.69 0.26 FA AAS
COMLAB 1.29 -1.25 3.74 -1.84 4.92 -0.02 0.47 -1.06 3.76 -1.26 3.78 -1.67 2.19 -1.37 1.63 -1.27 99.46 0.82 50.99 0.46 FA AAS
COMLAB 1.36 -0.13 3.83 -1.09 4.89 -0.22 0.50 0.09 4.01 0.75 4.13 1.16 2.21 -1.10 1.69 -0.32 94.20 -1.19 51.00 0.47 FA AAS
COMLAB 1.34 -0.45 3.89 -0.58 4.89 -0.22 0.48 -0.68 3.87 -0.37 4.03 0.35 2.32 0.38 1.63 -1.27 91.90 -2.07 42.00 -3.00 FA AAS
COMLAB 1.46 1.47 4.03 0.54 5.06 0.85 0.55 2.01 4.07 1.23 3.94 -0.37 2.33 0.52 1.79 1.27 99.61 0.88 49.78 -0.34 FA AAS
COMLAB 1.35 -0.29 4.06 0.83 4.98 0.36 0.50 0.09 4.04 0.99 4.00 0.11 2.33 0.52 1.71 0.00 97.90 0.22 50.70 0.27 FA AAS
COMLAB 1.31 -0.93 4.07 0.92 4.80 -0.80 0.50 0.09 3.87 -0.37 3.99 0.03 2.27 -0.29 1.72 0.16 91.60 -2.18 51.30 0.67 FA AAS
COMLAB 1.36 -0.13 3.81 -1.25 10.60 3.00 0.50 0.09 3.88 -0.29 4.00 0.11 2.22 -0.97 1.68 -0.48 96.20 -0.43 50.10 -0.13 FA GRAV
COMLAB 1.28 -1.41 3.90 -0.50 4.64 -1.83 0.48 -0.68 3.69 -1.82 3.85 -1.10 2.21 -1.10 1.58 -2.07 nr nr 47.47 -1.88 FA GRAV
COMLAB 1.38 0.19 4.05 0.75 5.02 0.62 0.48 -0.68 3.94 0.19 4.07 0.68 2.38 1.19 1.72 0.16 96.00 -0.50 49.10 -0.80 FA AAS
COMLAB 1.21 -2.53 3.90 -0.50 0.20 -3.00 0.45 -1.83 3.47 -3.00 3.66 -2.64 2.37 1.05 1.61 -1.59 89.30 -3.00 43.30 -3.00 FA AAS
COMLAB 1.40 0.51 3.97 0.08 4.86 -0.41 0.50 0.09 3.91 -0.05 3.86 -1.02 2.20 -1.24 1.77 0.95 97.22 -0.04 49.93 -0.24 FA AAS
COMLAB 1.38 0.19 3.89 -0.58 4.85 -0.48 0.50 0.09 3.90 -0.13 4.00 0.11 2.31 0.25 1.69 -0.32 94.03 -1.26 48.41 -1.26 FA AAS
COMLAB 1.60 3.00 4.91 3.00 5.20 1.80 0.61 3.00 4.22 2.42 3.74 -1.96 2.65 3.00 1.87 2.52 98.01 0.27 52.87 1.71 FA AAS
COMLAB 1.31 -0.93 3.84 -1.00 4.51 -2.67 0.41 -3.00 3.74 -1.42 3.86 -1.02 2.28 -0.16 1.67 -0.64 92.47 -1.85 51.50 0.80 FA ES
COMLAB 1.37 0.03 3.92 -0.33 5.00 0.49 0.53 1.24 3.84 -0.61 4.01 0.19 2.33 0.52 1.73 0.31 94.40 -1.11 49.40 -0.60 FA AAS
COMLAB 1.45 1.31 4.11 1.25 5.17 1.59 0.52 0.86 4.20 2.28 4.16 1.40 2.35 0.78 1.80 1.43 106.80 3.00 53.47 2.11 FA AAS
COMLAB 0.83 -3.00 3.89 -0.58 3.94 -3.00 0.52 0.86 3.80 -0.93 2.14 -3.00 1.68 -3.00 1.24 -3.00 44.53 -3.00 4.56 -3.00 FA AAS
COMLAB 1.24 -2.05 3.89 -0.58 4.85 -0.48 0.52 0.86 3.80 -0.93 3.92 -0.54 2.14 -2.04 1.68 -0.48 93.39 -1.50 40.20 -3.00 FA AAS
COMLAB 1.41 0.67 3.98 0.17 4.97 0.30 0.56 2.39 1.10 -3.00 4.01 0.19 2.29 -0.02 1.67 -0.64 97.47 0.06 49.84 -0.30 FA AAS
COMLAB 1.41 0.65 4.02 0.47 4.97 0.29 0.50 -0.06 3.81 -0.85 4.05 0.48 2.23 -0.78 1.66 -0.81 98.33 0.39 50.07 -0.15 FA AAS,GRAV
COMLAB 1.42 0.83 4.58 3.00 4.79 -0.86 0.39 -3.00 3.70 -1.74 4.38 3.00 2.25 -0.56 1.65 -0.96 107.00 3.00 52.70 1.60 FA,PR MS
COMLAB 1.31 -0.93 3.46 -3.00 4.95 0.17 0.55 2.01 2.64 -3.00 3.44 -3.00 2.12 -2.31 1.80 1.43 90.03 -2.78 46.09 -2.80 AR AAS
COMLAB 1.34 -0.45 3.70 -2.17 4.54 -2.47 0.52 0.86 3.84 -0.61 3.91 -0.62 2.22 -0.97 1.66 -0.80 93.01 -1.64 43.70 -3.00 IH AAS
COMLAB 1.45 1.31 4.11 1.23 5.34 2.69 0.52 1.01 4.17 2.04 4.20 1.70 2.43 1.90 1.81 1.58 103.84 2.49 53.38 2.05 FA ES
MINELAB 1.33 -0.61 3.95 -0.08 4.96 0.23 0.56 2.39 4.01 0.75 3.87 -0.94 2.49 2.67 1.96 3.00 100.21 1.11 50.95 0.43 FA AAS,GRAV
MINELAB 1.39 0.35 3.58 -3.00 3.98 -3.00 0.54 1.62 3.95 0.27 3.81 -1.42 2.36 0.92 1.59 -1.91 >100.00 ald 47.30 -1.99 FA AAS
MINELAB 1.45 1.31 4.02 0.50 4.93 0.04 0.50 0.09 4.11 1.55 4.03 0.35 2.47 2.40 1.77 0.95 >100.00 ald 50.00 -0.20 FA AAS
MINELAB 1.36 -0.13 4.11 1.25 4.91 -0.09 0.44 -2.21 4.01 0.75 3.91 -0.62 2.36 0.92 1.67 -0.64 99.09 0.68 49.97 -0.22 FA AAS
MINELAB 1.30 -1.09 4.09 1.08 5.10 1.14 0.41 -3.00 4.07 1.23 4.11 1.00 2.35 0.78 1.69 -0.32 95.28 -0.78 49.44 -0.57 FA AAS,GRAV
MINELAB 1.41 0.67 3.94 -0.17 4.90 -0.15 0.50 0.09 3.95 0.27 4.01 0.19 2.33 0.52 1.70 -0.16 98.27 0.36 50.67 0.25 FA GRAV
MINELAB 1.52 2.43 4.08 1.00 4.88 -0.28 0.52 0.86 3.94 0.19 3.86 -1.02 2.34 0.65 1.80 1.43 95.58 -0.66 49.71 -0.39 FA AAS,GRAV
MINELAB 1.40 0.51 3.95 -0.08 4.73 -1.25 0.54 1.62 3.95 0.27 4.03 0.35 2.29 -0.02 1.71 0.00 98.12 0.31 50.00 -0.20 FA,AR AAS,GRAV
MINELAB 1.41 0.67 3.91 -0.42 4.85 -0.48 0.52 0.86 3.89 -0.21 3.83 -1.26 2.24 -0.70 1.71 0.00 97.17 -0.06 49.66 -0.42 FA AAS,GRAV
MINELAB 1.38 0.19 3.94 -0.17 4.90 -0.15 0.52 0.86 51.70 3.00 3.99 0.03 2.26 -0.43 1.72 0.16 95.87 -0.55 3.96 -3.00 FA AAS
MINELAB 1.39 0.35 4.07 0.92 4.99 0.43 0.50 0.09 3.99 0.59 4.03 0.35 2.36 0.92 1.69 -0.32 98.02 0.27 49.89 -0.27 FA AAS,GRAV
MINELAB 1.47 1.63 3.94 -0.17 4.94 0.10 0.51 0.63 4.32 3.00 4.01 0.19 2.47 2.40 1.65 -0.96 98.19 0.33 49.82 -0.32 FA GRAV
MINELAB 1.49 1.95 4.17 1.75 5.36 2.81 0.55 2.01 4.15 1.88 4.04 0.43 2.41 1.59 1.83 1.90 98.39 0.41 50.71 0.27 FA AAS,GRAV
MINELAB 1.42 0.83 3.70 -2.17 4.51 -2.67 0.50 0.09 3.56 -2.86 3.98 -0.05 2.24 -0.70 1.90 3.00 95.25 -0.79 47.52 -1.85 FA AAS
MINELAB 1.48 1.79 2.39 -3.00 5.26 2.17 0.52 0.86 4.16 1.96 4.27 2.29 2.45 2.13 1.80 1.43 101.25 1.50 51.95 1.10 FA AAS
MINELAB 1.45 1.31 4.05 0.75 4.91 -0.09 0.57 2.77 4.05 1.07 4.01 0.19 2.32 0.38 1.75 0.63 98.41 0.42 50.28 -0.01 FA GRAV
MINELAB 1.39 0.35 3.89 -0.58 5.01 0.56 0.51 0.47 3.78 -1.10 4.20 1.73 2.24 -0.70 1.69 -0.32 103.64 2.42 53.12 1.88 FA AAS
MINELAB 1.29 -1.25 4.09 1.08 4.91 -0.09 0.50 0.09 3.89 -0.21 4.09 0.84 2.36 0.92 1.56 -2.39 20.10 -3.00 36.76 -3.00 FA ES
MINELAB 1.34 -0.45 4.10 1.17 5.10 1.14 0.49 -0.29 3.97 0.43 4.07 0.68 2.32 0.38 1.74 0.47 99.50 0.83 51.73 0.95 FA AAS
MINELAB 1.34 -0.45 3.79 -1.42 4.76 -1.06 0.49 -0.29 3.78 -1.10 3.85 -1.10 2.27 -0.29 1.67 -0.64 94.58 -1.04 47.60 -1.79 FA AAS
MINELAB 1.59 3.00 5.48 3.00 5.13 1.33 0.64 3.00 3.82 -0.77 5.24 3.00 2.27 -0.29 2.09 3.00 97.55 0.09 49.75 -0.36
MINELAB 1.35 -0.29 3.98 0.17 4.87 -0.35 0.49 -0.29 3.97 0.43 3.98 -0.05 2.21 -1.10 1.69 -0.32 98.55 0.47 51.11 0.54 FA ES
MINELAB 1.37 0.03 3.89 -0.58 4.75 -1.12 0.51 0.47 3.78 -1.10 3.89 -0.78 2.32 0.38 1.72 0.16 99.56 0.86 50.01 -0.19 FA AAS
MINELAB 0.94 -3.00 3.37 -3.00 4.28 -3.00 0.36 -3.00 3.30 -3.00 3.44 -3.00 1.90 -3.00 1.52 -3.00 149.87 3.00 60.68 3.00 FA AAS
MINELAB 1.31 -0.93 3.88 -0.67 4.78 -0.93 0.49 -0.29 3.76 -1.26 3.92 -0.54 2.22 -0.97 1.64 -1.12 84.79 -3.00 46.58 -2.47 FA ICP
MINELAB 1.22 -2.37 3.74 -1.84 4.66 -1.70 0.41 -3.00 3.74 -1.42 3.76 -1.83 2.11 -2.45 1.52 -3.00 96.13 -0.45 49.87 -0.28 FA GRAV
MINELAB 1.49 1.95 4.17 1.75 5.14 1.39 nr nr 4.22 2.44 4.05 0.51 2.29 -0.02 1.78 1.11 98.07 0.29 51.23 0.62 FA GRAV
MINELAB 1.25 -1.89 3.83 -1.09 4.44 -3.00 0.45 -1.83 3.79 -1.01 3.75 -1.91 2.26 -0.43 1.61 -1.59 36.86 -3.00 47.76 -1.69 FA AAS
MINELAB 1.29 -1.19 4.03 0.56 5.05 0.83 0.51 0.36 3.83 -0.69 3.99 0.01 2.34 0.65 1.58 -2.04 98.70 0.53 57.67 3.00 FA AAS
MINELAB 1.39 0.35 3.96 0.00 5.12 1.26 0.50 0.09 3.88 -0.29 3.98 -0.05 2.35 0.78 1.68 -0.48 96.20 -0.43 49.96 -0.22 FA AAS
MINELAB 1.29 -1.25 4.07 0.92 4.96 0.23 0.49 -0.29 3.85 -0.53 4.14 1.24 2.34 0.65 2.07 3.00 101.65 1.66 53.20 1.93 FA AAS
MINELAB 1.40 0.51 4.08 1.00 5.05 0.81 0.52 0.86 4.07 1.23 4.11 1.00 2.35 0.78 1.77 0.95 >80.00 ald 51.30 0.67 FA AAS
MINELAB 1.74 3.00 4.51 3.00 4.62 -1.96 0.90 3.00 4.58 3.00 4.61 3.00 2.81 3.00 1.85 2.22 94.71 -1.00 55.90 3.00 FA AAS
MINELAB 1.44 1.15 4.16 1.67 5.09 1.07 0.50 0.09 4.00 0.67 4.12 1.08 2.30 0.11 1.84 2.06 97.73 0.16 49.53 -0.51 FA AAS
MINELAB 1.40 0.51 3.47 -3.00 4.16 -3.00 0.56 2.39 3.35 -3.00 3.29 -3.00 2.27 -0.29 1.63 -1.27 6.27 -3.00 4.03 -3.00 FA AAS
MINELAB 1.36 -0.13 4.02 0.50 4.78 -0.93 0.66 3.00 3.68 -1.90 3.80 -1.51 2.22 -0.97 1.58 -2.07 93.94 -1.29 48.21 -1.39 FA GRAV
MINELAB 1.38 0.19 4.13 1.42 4.96 0.23 0.48 -0.68 4.05 1.07 4.12 1.08 2.39 1.32 1.82 1.74 95.81 -0.58 49.57 -0.48 FA AAS
MINELAB 1.27 -1.57 3.68 -2.34 4.37 -3.00 0.47 -1.06 3.57 -2.78 3.68 -2.47 2.26 -0.43 1.55 -2.55 55.17 -3.00 27.70 -3.00 FA AAS,GRAV
MINELAB 1.36 -0.13 3.96 0.00 4.99 0.43 0.49 -0.29 3.93 0.11 4.01 0.19 2.22 -0.97 1.69 -0.32 98.74 0.54 50.76 0.31 FA AAS
MINELAB 1.56 3.00 4.36 3.00 5.21 1.84 0.55 2.01 4.34 3.00 4.33 2.78 2.64 3.00 2.01 3.00 104.88 2.89 53.79 2.32 FA AAS
MINELAB 1.39 0.35 3.74 -1.84 4.48 -2.86 0.54 1.62 3.67 -1.98 3.27 -3.00 2.04 -3.00 1.62 -1.43 89.15 -3.00 36.35 -3.00 FA AAS
MINELAB 1.37 0.03 3.94 -0.17 4.82 -0.67 0.53 1.24 3.93 0.11 4.01 0.19 2.29 -0.02 1.78 1.11 98.32 0.38 49.85 -0.30 FA AAS
MINELAB 1.41 0.67 4.18 1.83 5.10 1.14 0.52 0.86 4.04 0.99 4.01 0.19 2.36 0.92 1.76 0.79 98.75 0.55 52.37 1.38 FA AAS
MINELAB 1.33 -0.61 4.08 1.00 5.14 1.39 0.45 -1.83 3.85 -0.53 4.09 0.84 2.32 0.38 1.71 0.00 99.79 0.95 50.72 0.28 FA AAS
MINELAB 1.43 0.99 4.27 2.59 4.95 0.17 0.52 0.86 4.26 2.76 4.28 2.37 2.22 -0.97 1.67 -0.64 113.00 3.00 55.20 3.00 FA AAS
MINELAB 1.30 -1.09 3.80 -1.34 4.69 -1.51 0.52 0.86 3.92 0.03 3.78 -1.67 2.05 -3.00 1.60 -1.75 94.42 -1.11 48.19 -1.40 FA AAS
MINELAB 1.24 -2.11 3.79 -1.39 4.81 -0.74 0.46 -1.27 3.79 -0.99 3.78 -1.68 2.13 -2.21 1.45 -3.00 94.43 -1.10 49.39 -0.60 FA AAS
MINELAB 1.39 0.35 3.93 -0.25 4.84 -0.54 0.49 -0.29 3.92 0.03 3.97 -0.13 2.54 3.00 1.71 0.00 98.76 0.55 51.43 0.75 FA AAS
MINELAB 1.31 -0.93 4.00 0.33 4.90 -0.15 0.48 -0.68 3.88 -0.29 3.79 -1.59 2.23 -0.83 1.69 -0.32 127.84 3.00 55.62 3.00 FA AAS
MINELAB 1.36 -0.08 4.10 1.13 4.97 0.32 0.49 -0.41 3.92 0.01 3.91 -0.60 2.28 -0.12 1.70 -0.18 95.62 -0.65 49.99 -0.20 FA AAS
MINELAB 1.36 -0.13 3.91 -0.42 4.81 -0.73 0.52 0.86 3.84 -0.61 3.96 -0.21 2.28 -0.16 1.70 -0.16 95.40 -0.73 48.90 -0.93 FA AAS
MINELAB 1.30 -1.05 3.74 -1.86 4.35 -3.00 0.48 -0.68 3.39 -3.00 3.33 -3.00 2.16 -1.77 1.47 -3.00 94.25 -1.17 50.71 0.27 FA GRAV
MINELAB 1.39 0.35 3.83 -1.09 4.72 -1.31 0.47 -1.06 3.70 -1.74 3.90 -0.70 2.45 2.13 1.70 -0.16 93.15 -1.59 47.30 -1.99 FA AAS
MINELAB 0.62 -3.00 3.98 0.17 4.94 0.10 0.63 3.00 4.15 1.88 4.00 0.11 2.47 2.40 1.86 2.38 98.40 0.41 49.08 -0.81 FA
MINELAB 1.41 0.67 4.03 0.58 4.96 0.23 0.50 0.09 3.98 0.51 4.07 0.68 2.32 0.38 1.74 0.47 97.90 0.22 50.97 0.45 FA GRAV
MINELAB 1.38 0.19 3.46 -3.00 4.64 -1.83 0.38 -3.00 3.86 -0.45 3.88 -0.86 2.18 -1.51 1.82 1.74 100.70 1.29 46.60 -2.46 FA GRAV
MINELAB 1.38 0.19 3.86 -0.84 4.82 -0.67 0.49 -0.29 3.99 0.59 3.96 -0.21 2.38 1.19 1.73 0.31 102.65 2.04 53.15 1.90 FA AAS
MINELAB 1.34 -0.45 3.92 -0.33 4.96 0.23 0.46 -1.37 3.86 -0.45 3.80 -1.51 2.30 0.11 1.72 0.16 101.20 1.48 52.00 1.13 FA AAS
MINELAB 1.34 -0.45 3.95 -0.08 4.98 0.36 0.50 0.09 3.80 -0.93 3.96 -0.21 2.32 0.38 1.73 0.31 97.20 -0.04 52.00 1.13 FA AAS
MINELAB 1.27 -1.57 3.64 -2.67 4.52 -2.60 0.48 -0.68 3.58 -2.70 3.70 -2.31 2.09 -2.72 1.62 -1.43 92.70 -1.76 45.50 -3.00 FA AAS
MINELAB 1.35 -0.29 4.01 0.42 4.99 0.43 0.51 0.47 4.03 0.91 4.11 1.00 2.18 -1.51 1.72 0.16 95.70 -0.62 51.30 0.67 FA AAS
MINELAB 1.38 0.19 4.12 1.34 4.96 0.23 4.06 3.00 0.50 -3.00 4.14 1.21 2.28 -0.14 2.14 3.00 93.31 -1.53 49.33 -0.65 FA AAS
MINELAB 1.35 -0.29 3.91 -0.42 4.80 -0.80 0.50 0.09 3.86 -0.45 3.88 -0.86 2.33 0.52 1.77 0.95 95.20 -0.81 50.30 0.00 FA AAS
MINELAB 1.37 0.03 3.83 -1.09 4.70 -1.44 0.51 0.47 3.88 -0.29 4.00 0.11 2.27 -0.29 1.71 0.00 96.60 -0.27 48.98 -0.88 FA AAS
MINELAB 1.33 -0.61 3.82 -1.17 4.66 -1.70 0.50 0.09 4.00 0.67 3.83 -1.26 2.23 -0.83 1.64 -1.12 98.07 0.29 52.76 1.64 FA AAS
MINELAB 1.34 -0.45 4.02 0.50 5.01 0.56 0.49 -0.29 3.94 0.19 3.85 -1.10 2.32 0.38 1.73 0.31 99.54 0.85 50.65 0.23 FA AAS
MINELAB 1.35 -0.29 4.01 0.42 5.09 1.07 0.51 0.47 4.06 1.15 4.00 0.11 2.29 -0.02 1.71 0.00 97.70 0.15 51.00 0.47 FA ES
MINELAB 1.36 -0.13 3.80 -1.34 4.90 -0.15 0.50 0.09 3.78 -1.10 3.84 -1.18 2.28 -0.16 1.72 0.16 98.00 0.26 50.20 -0.07 FA AAS
MINELAB 1.35 -0.29 3.91 -0.42 4.85 -0.48 0.46 -1.44 3.96 0.35 4.01 0.19 2.27 -0.29 1.67 -0.64 100.10 1.06 50.92 0.41 FA AAS,GRAV
MINELAB 1.40 0.51 4.12 1.33 4.91 -0.09 0.50 0.09 4.02 0.83 4.10 0.92 2.36 0.92 1.75 0.63 95.75 -0.60 48.63 -1.11 FA AAS
MINELAB 1.30 -1.09 4.13 1.42 5.07 0.94 0.54 1.62 4.00 0.67 4.14 1.24 2.31 0.25 1.66 -0.80 92.40 -1.88 55.90 3.00 FA AAS
MINELAB 1.30 -1.09 3.84 -1.00 5.00 0.49 0.46 -1.44 3.74 -1.42 3.80 -1.51 2.23 -0.83 1.72 0.16 101.00 1.41 50.40 0.07 FA AAS
MINELAB 1.31 -0.93 3.89 -0.58 4.99 0.43 0.47 -1.06 3.82 -0.77 3.87 -0.94 2.21 -1.10 1.67 -0.64 102.00 1.79 52.40 1.40 FA AAS
MINELAB 1.33 -0.61 3.99 0.25 4.77 -0.99 0.47 -1.06 3.86 -0.45 4.02 0.27 2.29 -0.02 1.74 0.47 97.34 0.01 46.91 -2.25 FA AAS
MINELAB 1.33 -0.61 3.95 -0.08 4.89 -0.22 0.55 2.01 3.71 -1.66 3.99 0.03 2.22 -0.97 1.74 0.47 96.10 -0.46 47.90 -1.59 FA AAS
MINELAB 1.32 -0.77 3.77 -1.59 4.92 -0.02 0.49 -0.29 3.92 0.03 3.95 -0.29 2.19 -1.37 1.66 -0.80 95.49 -0.70 51.18 0.59 FA AAS
MINELAB 1.23 -2.21 3.72 -2.00 4.73 -1.25 0.45 -1.83 3.72 -1.58 3.70 -2.31 2.17 -1.64 1.50 -3.00 90.18 -2.73 50.12 -0.12 FA GRAV
MINELAB 1.54 2.67 4.00 0.33 2.34 -3.00 0.53 1.28 4.06 1.15 3.60 -3.00 4.88 3.00 1.70 -0.16 96.01 -0.50 49.18 -0.75 FA GRAV
MINELAB 1.33 -0.61 3.81 -1.25 4.65 -1.76 0.37 -3.00 3.74 -1.42 3.83 -1.26 2.18 -1.51 1.61 -1.59 93.90 -1.30 48.40 -1.26 FA AAS
MINELAB 1.37 0.03 3.93 -0.25 4.90 -0.15 0.47 -1.06 3.89 -0.21 3.99 0.03 2.29 -0.02 1.72 0.16 97.47 0.06 50.38 0.05 FA AAS,GRAV
MINELAB 1.35 -0.29 3.79 -1.42 4.89 -0.22 0.50 0.09 3.81 -0.85 4.11 1.00 2.30 0.11 1.74 0.47 96.20 -0.43 50.30 0.00 FA AAS
MINELAB 1.43 0.99 3.94 -0.17 4.96 0.23 0.48 -0.68 3.82 -0.77 4.07 0.68 2.38 1.19 1.84 2.06 101.20 1.48 50.50 0.13 FA AAS
Highlighted values are outliers which are assigned a z-score of -3.00 or 3.00 in the standardised values.
Method Reading
Alex Stewart International Argentina SA - Perito Moreno Report Page 1
50 gram Fire Assay - Mean of Absolute Standardized Values - April 2019 50 gram Fire Assay - Mean of Standardized Values - April 2019
Standard Deviations Standard Deviations
0 1 2
MAXXAM ONTARIO
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Alex Stewart International Argentina SA - Perito Moreno ReportPage 2
Aqua Regia Gold Round Robin - Summary Statistics, Assays, Standardised Values and Graphs - April 2019
Standard Reference G319-1 G319-2 G319-3 G319-4 G319-5 G319-6 G319-7 G319-8 G319-9 G319-10
MEAN (ppm) 1.37 3.98 4.90 0.50 3.94 3.98 2.31 1.71 98.21 50.52
STDEV (ppm) 0.06 0.13 0.18 0.03 0.13 0.18 0.10 0.06 4.75 1.89
95% CI (ppm) 0.02 0.03 0.05 0.01 0.04 0.05 0.03 0.02 1.33 0.52
95% CI (%) 1.16% 0.87% 0.96% 1.81% 0.91% 1.19% 1.14% 0.96% 1.35% 1.04% Aqua Regia Assay - Mean of Absolute Standardized Values - April 2019MIN (ppm) 1.21 3.72 4.45 0.42 3.61 3.48 2.10 1.57 86.80 46.37
MEDIAN (ppm) 1.36 3.99 4.92 0.50 3.94 3.99 2.30 1.71 98.16 50.30
MAX (ppm) 1.50 4.33 5.24 0.59 4.28 4.43 2.55 1.85 110.82 55.08
IQR (ppm) 0.07 0.14 0.19 0.03 0.16 0.19 0.13 0.07 4.90 2.39
COUNT 58 54 55 56 54 58 59 57 50 51
Standard Reference G319-1 G319-2 G319-3 G319-4 G319-5 G319-6 G319-7 G319-8 G319-9 G319-10
Lab Reference assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score
COMLAB 1.30 -1.06 3.84 -1.12 4.62 -1.61 0.48 -0.52 3.77 -1.29 3.83 -0.83 2.12 -1.84 1.60 -1.80 >30.00 ald >30.00 ald NAA
COMLAB 1.29 -1.23 3.92 -0.50 4.82 -0.48 0.48 -0.52 4.01 0.51 3.84 -0.78 2.25 -0.57 1.71 -0.05 96.20 -0.42 50.50 -0.01 PR,AR MS
COMLAB 1.39 0.41 4.00 0.13 >5.00 ald bld bld 4.00 0.44 4.11 0.70 2.35 0.42 1.74 0.35 >5.00 ald >5.00 ald AR AAS
COMLAB 1.34 -0.41 3.88 -0.81 4.94 0.20 0.47 -0.81 3.84 -0.76 3.89 -0.51 2.23 -0.76 1.68 -0.53 99.00 0.17 52.00 0.79 AR MS
COMLAB 1.35 -0.25 3.98 -0.03 4.95 0.26 0.49 -0.16 3.94 -0.01 3.99 0.04 2.30 -0.07 1.75 0.59 95.90 -0.49 50.10 -0.22 AR MS
COMLAB 1.29 -1.23 3.79 -1.51 4.89 -0.08 0.47 -0.81 3.91 -0.24 3.92 -0.34 2.29 -0.17 1.59 -1.96 100.00 0.38 50.90 0.20 AR MS
COMLAB 1.38 0.24 4.10 0.91 5.13 1.28 0.58 2.41 4.09 1.11 4.25 1.47 2.29 -0.17 1.77 0.91 92.40 -1.22 52.10 0.84 AR MS
COMLAB 1.41 0.73 4.11 0.99 4.98 0.43 0.51 0.36 3.96 0.14 4.02 0.21 2.35 0.42 1.69 -0.37 98.17 -0.01 49.28 -0.66 AR ES
COMLAB 0.32 -3.00 0.95 -3.00 1.20 -3.00 0.09 -3.00 1.00 -3.00 0.94 -3.00 0.54 -3.00 0.38 -3.00 19.39 -3.00 10.51 -3.00 AR DIBK
COMLAB 1.34 -0.41 4.50 3.00 5.10 1.11 0.43 -1.98 3.90 -0.31 4.05 0.37 2.33 0.22 1.79 1.23 100.00 0.38 50.00 -0.27 AR
COMLAB 1.38 0.28 4.25 2.07 5.08 1.01 0.47 -0.67 4.23 2.13 4.31 1.79 2.46 1.47 1.70 -0.26 >10.00 ald >10.00 ald PR,AR MS
COMLAB 1.38 0.24 3.83 -1.20 4.45 -2.57 0.50 -0.02 3.92 -0.16 3.88 -0.56 2.21 -0.96 1.63 -1.32 98.10 -0.02 51.30 0.42 AR MS
COMLAB 1.39 0.42 3.95 -0.23 4.95 0.23 0.53 0.92 4.03 0.62 4.01 0.16 2.35 0.39 1.72 0.06 >10.00 ald >10.00 ald AR AAS
COMLAB 1.16 -3.00 4.10 0.91 5.03 0.71 0.46 -1.10 7.77 3.00 3.91 -0.40 2.31 0.02 1.97 3.00 114.63 3.00 55.83 2.82 AR AAS
COMLAB 1.33 -0.57 3.92 -0.50 4.74 -0.93 0.47 -0.75 3.86 -0.61 3.96 -0.12 2.31 0.02 1.65 -1.01 98.00 -0.04 49.80 -0.38 AR MS
COMLAB 1.34 -0.48 3.83 -1.22 4.79 -0.67 0.49 -0.21 3.70 -1.80 4.02 0.21 2.38 0.74 1.69 -0.36 >10.00 ald >10.00 ald AR MS
COMLAB 1.34 -0.41 3.90 -0.65 4.72 -1.05 0.52 0.66 4.01 0.51 3.64 -1.88 2.26 -0.47 1.65 -1.01 86.80 -2.40 47.70 -1.49 AR MS
COMLAB 1.82 3.00 3.16 -3.00 3.48 -3.00 1.27 3.00 3.00 -3.00 3.07 -3.00 2.19 -1.15 1.92 3.00 74.00 -3.00 36.35 -3.00 AR
COMLAB 1.37 0.08 4.11 0.99 5.03 0.71 0.50 0.07 3.96 0.14 4.02 0.21 2.42 1.10 1.75 0.59 >15.00 ald >15.00 ald AR MS
COMLAB 1.29 -1.23 3.91 -0.58 4.64 -1.50 0.48 -0.52 3.81 -0.99 3.96 -0.12 2.28 -0.27 1.71 -0.05 101.39 0.67 49.98 -0.28 AR AAS
COMLAB 1.35 -0.25 4.08 0.75 4.80 -0.59 0.49 -0.22 3.96 0.14 3.88 -0.56 2.34 0.32 1.77 0.91 99.20 0.21 48.20 -1.23 AR AAS
COMLAB 1.40 0.57 4.05 0.52 4.95 0.26 0.49 -0.22 4.11 1.26 4.09 0.59 2.30 -0.07 1.71 -0.05 99.99 0.37 50.19 -0.17 AR AAS
COMLAB 0.76 -3.00 2.59 -3.00 2.53 -3.00 0.31 -3.00 2.07 -3.00 2.31 -3.00 1.42 -3.00 0.91 -3.00 106.53 1.75 49.19 -0.70 AR
COMLAB 1.30 -1.06 4.00 0.13 4.91 0.03 0.42 -2.27 4.03 0.66 3.97 -0.07 2.22 -0.86 1.64 -1.17 99.66 0.31 51.66 0.61 AR MS
COMLAB 1.43 1.06 4.23 1.88 5.24 1.87 0.50 0.13 4.27 2.42 4.26 1.53 2.45 1.40 1.82 1.63 103.65 1.15 53.95 1.82 AR MS
COMLAB 1.41 0.73 4.04 0.44 5.00 0.54 0.51 0.36 4.05 0.81 4.05 0.37 2.52 2.08 1.78 1.07 >25.00 ald >25.00 ald AR MS
COMLAB 1.34 -0.41 4.02 0.28 4.97 0.37 0.49 -0.22 3.96 0.14 3.94 -0.23 2.25 -0.57 1.71 -0.05 >25.00 ald >25.00 ald AR ICP
COMLAB 1.41 0.73 3.99 0.05 4.92 0.09 0.49 -0.22 3.97 0.21 3.92 -0.34 2.13 -1.74 1.71 -0.05 >50.00 ald 48.29 -1.18 AR AAS
COMLAB 1.26 -1.72 3.78 -1.59 4.58 -1.84 0.46 -1.10 3.78 -1.21 3.73 -1.38 2.18 -1.25 1.68 -0.53 104.02 1.22 48.99 -0.81 AR AAS
COMLAB 1.36 -0.08 3.93 -0.42 5.20 1.67 0.54 1.24 3.74 -1.51 4.14 0.86 2.17 -1.35 1.78 1.07 94.10 -0.87 51.50 0.52 AR AAS
COMLAB 1.33 -0.57 3.51 -3.00 4.19 -3.00 0.53 0.95 3.57 -2.78 3.34 -3.00 2.02 -2.82 1.53 -2.92 84.80 -2.83 44.70 -3.00 AR AAS
COMLAB 1.32 -0.74 3.76 -1.75 4.66 -1.39 0.52 0.66 3.84 -0.76 3.90 -0.45 2.30 -0.07 1.72 0.11 92.60 -1.18 46.50 -2.13 AR AAS
COMLAB 1.36 -0.08 3.72 -2.06 4.67 -1.33 0.47 -0.81 3.83 -0.84 3.62 -1.98 2.10 -2.04 1.69 -0.37 97.40 -0.17 49.00 -0.80 AR DIBK,AAS
COMLAB 1.32 -0.74 3.86 -0.97 4.86 -0.25 0.46 -1.10 3.89 -0.39 3.84 -0.78 2.33 0.22 1.70 -0.21 97.90 -0.07 48.60 -1.02 AR AAS
COMLAB 1.50 2.20 3.83 -1.20 4.60 -1.73 0.54 1.24 3.87 -0.54 3.60 -2.09 2.44 1.30 1.81 1.55 89.80 -1.77 43.40 -3.00 AR DIBK,AAS
COMLAB 1.45 1.39 3.94 -0.34 4.87 -0.20 0.54 1.24 4.16 1.63 3.99 0.04 2.46 1.49 1.65 -1.01 95.67 -0.54 51.66 0.61 AR DIBK,AAS
COMLAB 1.28 -1.39 4.05 0.52 5.08 0.99 0.47 -0.81 4.00 0.44 4.05 0.37 2.34 0.32 1.59 -1.96 101.50 0.69 51.90 0.73 AR AAS
COMLAB 1.33 -0.57 4.05 0.52 4.97 0.37 0.48 -0.52 3.97 0.21 3.97 -0.07 0.46 -3.00 1.74 0.43 91.50 -1.41 49.73 -0.42 AR
COMLAB 1.47 1.71 4.11 0.99 4.84 -0.37 0.36 -3.00 4.08 1.03 4.38 2.18 2.41 1.00 1.76 0.75 107.00 1.85 51.40 0.47 PR,AR MS
COMLAB 1.34 -0.41 3.43 -3.00 4.90 -0.03 0.53 0.95 2.67 -3.00 3.48 -2.75 2.16 -1.45 1.70 -0.21 88.23 -2.10 46.37 -2.20 AR AAS
COMLAB 1.33 -0.57 3.76 -1.75 4.55 -2.01 0.53 0.95 3.73 -1.59 3.79 -1.05 2.22 -0.86 1.70 -0.21 93.53 -0.99 44.05 -3.00 IH AAS
MINELAB 1.48 1.88 4.09 0.83 5.03 0.71 0.54 1.24 4.06 0.89 4.26 1.52 2.37 0.61 1.82 1.71 97.39 -0.17 51.18 0.35 AR,DIBK AAS
MINELAB 1.42 0.90 4.02 0.28 4.96 0.31 0.50 0.07 3.86 -0.61 4.02 0.21 2.32 0.12 1.81 1.55 104.45 1.31 54.80 2.27 AR AAS
MINELAB 1.23 -2.21 3.58 -3.00 5.23 1.84 0.44 -1.69 3.11 -3.00 3.83 -0.83 2.20 -1.06 1.66 -0.85 80.93 -3.00 53.59 1.63 AR AAS
MINELAB 1.34 -0.41 4.08 0.75 4.89 -0.08 0.50 0.07 4.00 0.44 4.11 0.70 2.26 -0.47 1.61 -1.64 102.78 0.96 50.27 -0.13 AR AAS
MINELAB 1.38 0.24 3.84 -1.12 5.02 0.65 0.60 3.00 3.89 -0.39 3.96 -0.12 2.40 0.91 1.93 3.00 95.09 -0.66 49.24 -0.68 AR DIBK,AAS
MINELAB 1.37 0.08 3.92 -0.50 4.91 0.03 0.50 0.07 3.81 -0.99 3.87 -0.62 2.19 -1.15 1.65 -1.01 103.44 1.10 52.86 1.24 AR AAS
MINELAB 1.35 -0.25 4.00 0.13 5.10 1.11 0.51 0.36 3.96 0.14 4.07 0.48 2.37 0.61 1.67 -0.69 98.54 0.07 49.52 -0.53 AR AAS
MINELAB 1.56 3.00 3.54 -3.00 4.55 -2.01 0.53 0.95 3.61 -2.48 4.12 0.75 2.48 1.69 1.84 2.03 98.23 0.00 50.93 0.22
MINELAB 1.34 -0.41 4.07 0.67 4.85 -0.31 0.47 -0.81 3.85 -0.69 4.02 0.21 2.29 -0.17 1.71 -0.05 99.38 0.25 51.74 0.65 FA ES
MINELAB 1.46 1.55 3.97 -0.11 4.87 -0.20 0.57 2.12 3.83 -0.84 3.94 -0.23 2.33 0.22 1.73 0.27 97.79 -0.09 51.32 0.43 AAS
MINELAB 2.43 3.00 3.05 -3.00 4.18 -3.00 0.26 -3.00 3.28 -3.00 3.57 -2.26 1.58 -3.00 1.07 -3.00 116.42 3.00 40.76 -3.00 FA AAS
MINELAB 1.36 -0.08 3.90 -0.65 4.83 -0.42 0.52 0.66 3.81 -0.99 3.90 -0.45 2.21 -0.96 1.69 -0.37 96.01 -0.46 47.11 -1.81 AR AAS
MINELAB 1.33 -0.57 3.94 -0.34 4.98 0.43 0.48 -0.52 3.97 0.21 4.13 0.81 2.26 -0.47 1.72 0.11 98.95 0.16 50.70 0.10 AR AAS
MINELAB 1.33 -0.57 4.06 0.60 4.92 0.09 0.51 0.36 3.97 0.21 4.19 1.14 2.30 -0.07 1.75 0.59 98.14 -0.01 50.48 -0.02 AR DIBK,AAS
MINELAB 1.41 0.73 3.94 -0.34 4.91 0.03 0.50 0.07 3.85 -0.69 3.92 -0.34 2.27 -0.37 1.75 0.59 99.84 0.34 50.30 -0.11 AAS
MINELAB 1.38 0.24 3.95 -0.26 5.00 0.54 0.51 0.36 4.13 1.41 4.12 0.75 2.37 0.61 1.77 0.91 100.87 0.56 52.86 1.24 AR AAS
MINELAB 1.40 0.57 3.98 -0.03 5.13 1.28 0.48 -0.52 5.15 3.00 4.09 0.59 2.33 0.22 1.72 0.11 103.88 1.19 53.03 1.33 AR AAS
MINELAB 1.49 2.04 4.33 2.70 5.44 3.00 0.59 2.71 4.40 3.00 4.72 3.00 2.49 1.79 1.94 3.00 110.82 2.66 55.08 2.42 AR AAS,DIBK
MINELAB 1.36 -0.03 4.06 0.60 4.96 0.29 0.50 -0.08 3.84 -0.78 4.02 0.19 2.28 -0.32 1.73 0.32 96.65 -0.33 52.38 0.99 AR AAS
MINELAB 1.48 1.88 4.27 2.24 5.57 3.00 0.54 1.24 4.28 2.53 4.43 2.45 2.55 2.38 1.85 2.19 96.25 -0.41 50.34 -0.09 AR AAS
MINELAB 1.39 0.41 3.93 -0.42 4.79 -0.65 0.50 0.07 3.89 -0.39 3.92 -0.34 2.37 0.61 1.70 -0.21 92.79 -1.14 48.98 -0.81 AR AAS
MINELAB 1.43 1.06 3.98 -0.03 4.88 -0.14 0.49 -0.22 3.94 -0.01 3.99 0.04 2.16 -1.45 1.70 -0.21 >50.00 ald 48.47 -1.08 AR AAS
MINELAB 1.35 -0.18 4.08 0.75 4.98 0.40 0.50 0.19 3.94 -0.01 4.07 0.47 2.40 0.87 1.71 0.02 92.90 -1.12 49.96 -0.30 AR AAS,DIBK
MINELAB 1.31 -0.90 4.01 0.21 3.43 -3.00 0.45 -1.39 4.86 3.00 3.74 -1.33 2.25 -0.57 1.64 -1.17 96.08 -0.45 50.00 -0.27 AR AAS
MINELAB 1.35 -0.25 3.99 0.05 4.95 0.26 0.47 -0.81 3.90 -0.31 4.02 0.21 2.29 -0.17 1.73 0.27 99.20 0.21 51.64 0.60 AR DIBK
MINELAB 1.21 -2.53 3.59 -3.00 4.78 -0.71 0.45 -1.39 3.81 -0.99 3.78 -1.11 2.14 -1.64 1.57 -2.28 95.70 -0.53 47.90 -1.39 AR AAS
MINELAB 1.27 -1.62 3.62 -2.82 4.07 -3.00 0.54 1.36 3.34 -3.00 2.43 -3.00 1.99 -3.00 2.94 3.00 92.06 -1.30 55.85 2.83 FA ES
MINELAB 1.35 -0.25 4.00 0.13 5.16 1.45 0.48 -0.52 3.92 -0.16 3.91 -0.40 2.21 -0.96 1.64 -1.17 102.50 0.90 49.70 -0.43 AR AAS
Highlighted values are outliers which are assigned a z-score of -3.00 or 3.00 in the standardised values. Results reported by Fire Assay or NAA were not included in the calculation of the statistics.
Method Reading
Alex Stewart International Argentina SA - Perito Moreno Report Page 3
Aqua Regia Assay - Mean of Absolute Standardized Values - April 2019 Aqua Regia Fire Assay - Mean of Standardized Values - April 2019
Standard Deviations Standard Deviations
0 1 2
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Alex Stewart International Argentina SA - Perito Moreno ReportPage 4
Low Grade Gold Round Robin - Summary Statistics, Assays, Standardised Values and Graphs - April 2019
Standard Reference GLG319-1 GLG319-2 GLG319-3 GLG319-4 GLG319-5
MEAN (ppb) 26 2 238 100 44
STDEV (ppb) 3 2 11 9 4
95% CI (ppb) 1 1 2 2 1
95% CI (%) 2.60% 21.93% 1.03% 1.98% 2.35% Low Grade Gold Assay - Mean of Absolute Standardized Values - April 2019MIN (ppb) 19 0 209 78 34
MEDIAN (ppb) 26 2 238 99 43
MAX (ppb) 34 6 269 127 55
IQR (ppb) 3 2 13 9 5
COUNT 81 40 84 88 75
Standard Reference GLG319-1 GLG319-2 GLG319-3 GLG319-4 GLG319-5
Lab Reference assay z-score assay z-score assay z-score assay z-score assay z-score
MAXXAM ONTARIO 25 -0.21 <10 bld 260 1.97 107 0.70 42 -0.34 NAA
ASA MENDOZA 26 0.09 2 -0.06 247 0.79 111 1.07 52 1.89 FA AAS
ASA PERITO MORENO 27 0.45 3 0.29 221 -1.46 110 1.01 34 -2.13 FA AAS
COMLAB 26 0.12 <2 bld 226 -1.02 95 -0.57 36 -1.68 FA MS
COMLAB 30 1.44 <5 bld 243 0.47 118 1.86 46 0.55 FA AAS
COMLAB 28 0.78 3 0.29 242 0.38 124 2.49 47 0.77 FA AAS
COMLAB 26 0.12 <5 bld 248 0.91 105 0.48 42 -0.34 FA AAS
COMLAB 22 -1.19 <5 bld 248 0.91 109 0.91 37 -1.46 FA AAS
COMLAB 25 -0.21 <5 bld 241 0.30 100 -0.04 43 -0.12 FA MS
COMLAB 23 -0.93 0 -1.32 230 -0.67 91 -0.98 43 -0.10 PR,AR MS
COMLAB 26 0.12 1 -0.86 234 -0.32 95 -0.57 43 -0.12 FA ES
COMLAB 23 -0.86 <1 bld 228 -0.85 103 0.27 40 -0.79 FA ES
COMLAB 22 -1.19 <1 bld 236 -0.14 88 -1.31 42 -0.34 FA AAS
COMLAB 24 -0.53 <2 bld 231 -0.58 93 -0.78 44 0.10 FA AAS
COMLAB 25 -0.21 1 -0.86 235 -0.23 98 -0.25 78 3.00 FA ES
COMLAB 26 0.12 <5 bld 239 0.12 91 -0.99 124 3.00 FA AAS
COMLAB 23 -0.86 <1 bld 229 -0.76 94 -0.68 39 -1.01 FA AAS
COMLAB 26 0.12 <2 bld 235 -0.23 98 -0.25 48 1.00 FA AAS
COMLAB 26 0.12 2 -0.28 238 0.03 100 -0.04 50 1.44 FA ES
COMLAB 26 0.12 nr nr 238 0.03 96 -0.47 47 0.77 FA ES
COMLAB 21 -1.52 <2 bld 231 -0.58 97 -0.36 48 1.00 FA AAS
COMLAB 26 0.12 nr nr 236 -0.14 95 -0.57 46 0.55 FA ES
COMLAB 23 -0.76 <0.3 bld 239 0.11 102 0.17 43 -0.12 FA ES
COMLAB 4 -3.00 <3 bld 105 -3.00 69 -3.00 10 -3.00 AR AAS
COMLAB 25 -0.21 <5 bld 239 0.12 102 0.17 45 0.33 FA AAS
COMLAB 28 0.78 3 0.29 238 0.03 105 0.48 51 1.67 FA MS
COMLAB 26 0.12 2 -0.28 243 0.47 100 -0.04 43 -0.12 FA ES
COMLAB 30 1.44 nr nr 250 1.09 90 -1.10 50 1.44 FA AAS
COMLAB 25 -0.30 0 -1.20 231 -0.63 96 -0.50 42 -0.45 AR MS
COMLAB 21 -1.52 6 2.01 217 -1.82 99 -0.15 39 -1.01 FA ES
COMLAB 30 1.44 <1 bld 230 -0.67 97 -0.36 44 0.10 AR MS
COMLAB 24 -0.53 <5 bld 232 -0.50 96 -0.47 37 -1.46 FA AAS
COMLAB 80 3.00 71 3.00 312 3.00 140 3.00 129 3.00 FA AAS
COMLAB 30 1.53 <5 bld 243 0.44 96 -0.44 48 0.93 FA AAS
COMLAB 26 0.22 2 -0.34 225 -1.10 104 0.36 43 -0.19 AR GF,AAS
COMLAB 27 0.47 <5 bld 209 -2.49 87 -1.37 43 -0.20 FA AAS
COMLAB 26 0.12 <1 bld 243 0.47 96 -0.47 44 0.10 FA ES
COMLAB 31 1.76 6 2.01 239 0.12 102 0.17 40 -0.79 FA MS
COMLAB 24 -0.53 1 -0.86 236 -0.14 96 -0.47 44 0.10 FA MS
COMLAB 28 0.71 6 2.01 243 0.50 121 2.18 126 3.00 FA AAS
COMLAB 25 -0.21 1 -0.86 244 0.56 107 0.70 44 0.10 FA AAS
COMLAB 27 0.45 4 0.98 249 0.97 93 -0.76 49 1.15 FA AAS
COMLAB 23 -0.86 <1 bld 224 -1.20 89 -1.21 44 0.10 FA ES
COMLAB 23 -0.86 <10 bld 238 0.03 96 -0.47 57 3.00 FA ES
COMLAB 25 -0.27 1 -0.69 244 0.56 99 -0.16 46 0.53 AR MS
COMLAB 25 -0.21 <1 bld 224 -1.20 94 -0.68 44 0.10 AR MS
COMLAB <100 bld <100 bld 150 -3.00 <100 bld <100 bld FA AAS
COMLAB 25 -0.27 1 -0.86 234 -0.33 95 -0.58 43 -0.16 AR ICP
COMLAB 19 -2.09 <8 bld 210 -2.41 81 -2.02 37 -1.56 AR AAS
COMLAB <50 bld <50 bld 218 -1.73 87 -1.42 <50 bld FA AAS
COMLAB 23 -0.86 1 -0.86 241 0.30 98 -0.25 41 -0.57 FA,GF AAS
COMLAB 26 0.12 5 1.43 239 0.12 104 0.38 68 3.00 FA AAS
COMLAB 26 0.12 2 -0.28 240 0.21 99 -0.15 55 2.56 FA ICP
COMLAB 26 0.12 1 -0.86 240 0.21 97 -0.36 42 -0.34 FA AAS
COMLAB nr nr nr nr 253 1.35 96 -0.47 45 0.28 FA ES
COMLAB 29 1.11 <5 bld 245 0.65 99 -0.15 46 0.55 FA
COMLAB 40 3.00 <5 bld 244 0.56 107 0.70 50 1.44 FA AAS
COMLAB 23 -0.86 <1 bld 237 -0.06 97 -0.36 41 -0.57 AR,GF AAS
COMLAB 34 2.62 3 0.40 209 -2.51 78 -2.40 42 -0.34 FA AAS
COMLAB 28 0.78 4 0.86 237 -0.06 101 0.06 46 0.55 FA ES
COMLAB 26 0.12 3 0.29 >200 ald 115 1.54 39 -1.01 AR DIBK
COMLAB 24 -0.53 <1 bld 229 -0.76 101 0.06 75 3.00 AR MS
COMLAB 22 -1.19 <1 bld 243 0.47 91 -0.99 41 -0.57 FA MS
COMLAB 29 1.10 <1 bld 229 -0.72 93 -0.80 41 -0.57 FA AAS
COMLAB 28 0.78 2 -0.28 249 1.00 108 0.80 63 3.00 FA AAS
COMLAB 28 0.78 <2 bld 241 0.30 100 -0.04 41 -0.57 FA AAS
COMLAB 25 -0.21 2 -0.28 222 -1.38 93 -0.78 37 -1.46 FA ES
COMLAB 27 0.45 <1 bld 236 -0.14 98 -0.25 41 -0.57 FA DIBK,AAS
COMLAB 22 -1.29 <1 bld 233 -0.40 94 -0.63 36 -1.59 FA ES
COMLAB 20 -1.85 2 -0.28 228 -0.85 101 0.06 57 3.00 FA MS
COMLAB 30 1.44 <10 bld 290 3.00 120 2.07 40 -0.79 FA AAS
COMLAB 24 -0.53 <5 bld 232 -0.50 99 -0.15 40 -0.79 FA AAS
COMLAB 26 0.25 0 -1.30 259 1.88 112 1.22 41 -0.66 AR MS
COMLAB 27 0.45 2 -0.28 221 -1.46 99 -0.15 50 1.44 IH AAS
COMLAB 26 0.12 1 -0.80 245 0.65 102 0.17 47 0.77 FA AAS
MINELAB 60 3.00 35 3.00 285 3.00 139 3.00 72 3.00
MINELAB 20 -1.72 1 -0.97 238 0.07 96 -0.50 45 0.28 FA ES
MINELAB 20 -1.85 <20 bld 160 -3.00 70 -3.00 <20 -3.00 FA AAS
MINELAB 26 0.19 6 2.24 235 -0.21 97 -0.33 46 0.55 FA ICP
MINELAB 111 3.00 44 3.00 8 -3.00 122 2.28 72 3.00 FA AAS
MINELAB 22 -1.19 <1 bld 249 1.00 101 0.06 55 2.56 FA AAS
MINELAB 50 3.00 30 3.00 270 2.85 110 1.01 60 3.00 FA AAS
MINELAB <36 bld <36 bld 265 2.41 98 -0.25 39 -1.12 FA AAS
MINELAB <50 bld <50 bld 224 -1.20 108 0.80 61 3.00 AR AAS
MINELAB 32 1.93 8 3.00 241 0.33 127 2.81 52 1.96 FA AAS
MINELAB 19 -2.31 <3 bld 218 -1.69 84 -1.70 36 -1.73 FA AAS
MINELAB 30 1.31 4 0.88 232 -0.48 98 -0.27 44 0.21 AR AAS
MINELAB 33 2.42 5 1.43 242 0.38 100 -0.04 62 3.00 AR AAS
MINELAB 55 3.00 40 3.00 250 1.09 120 2.07 65 3.00 AAS
MINELAB <50 bld <50 bld 253 1.33 123 2.35 67 3.00 FA AAS
MINELAB 24 -0.53 <5 bld 250 1.09 105 0.48 41 -0.57 FA AAS
MINELAB 27 0.45 1 -0.86 269 2.76 101 0.06 49 1.22 FA AAS
MINELAB 28 0.78 3 0.29 263 2.23 112 1.22 44 0.10 FA MS
MINELAB 27 0.39 1 -0.86 203 -3.00 85 -1.66 41 -0.66 FA ES
MINELAB 25 -0.21 <10 bld 230 -0.66 98 -0.22 44 0.04 FA AAS
MINELAB 28 0.78 4 0.69 229 -0.73 100 -0.08 41 -0.50 FA AAS
Highlighted values are outliers which are assigned a z-score of -3.00 or 3.00 in the standardised values.
Method Reading
Alex Stewart International Argentina SA - Perito Moreno Report Page 5
Low Grade Gold Assay - Mean of Absolute Standardized Values - April 2019 Low Grade Gold Fire Assay - Mean of Standardized Values - April 2019
Standard Deviations Standard Deviations
0 1 2
MAXXAM ONTARIO
ASA MENDOZA
ASA PERITO MORENO
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MAXXAM ONTARIO
ASA MENDOZA
ASA PERITO MORENO
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
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Alex Stewart International Argentina SA - Perito Moreno ReportPage 6
Gold on Carbon Round Robin - Summary Statistics, Assays, Standardised Values and Graphs - April 2019
Standard Reference GBC319-1 GBC319-2 GBC319-3 GBC319-4 GLC319-1 GLC319-2
MEAN (ppm) 550 716 711 806 3527 2154
STDEV (ppm) 19 35 39 39 237 92
95% CI (ppm) 4 7 7 7 45 18
95% CI (%) 0.66% 0.94% 1.04% 0.92% 1.27% 0.82% Gold on Carbon Assay - Mean of Absolute Standardized Values - April 2019MIN (ppm) 501 623 627 717 3010 1906
MEDIAN (ppm) 552 715 708 801 3481 2161
MAX (ppm) 593 805 817 902 4082 2371
IQR (ppm) 23 49 45 54 260 111
COUNT 101 104 107 106 109 106
Standard Reference GBC319-1 GBC319-2 GBC319-3 GBC319-4 GLC319-1 GLC319-2
Lab Reference assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score
ASA MENDOZA 556 0.29 725 0.26 712 0.03 813 0.18 3535 0.03 2195 0.45 FA GRAV
COMLAB 273 -3.00 654 -1.78 648 -1.62 723 -2.14 3010 -2.18 806 -3.00 FA GRAV
COMLAB 537 -0.69 747 0.88 716 0.13 829 0.60 3393 -0.57 2213 0.64 FA
COMLAB 548 -0.12 663 -1.52 636 -1.94 745 -1.59 3368 -0.67 2009 -1.58 FA GRAV
COMLAB 310 -3.00 623 -2.67 678 -0.85 752 -1.39 3250 -1.17 1940 -2.33 FA GRAV
COMLAB 547 -0.18 718 0.06 718 0.18 805 -0.02 3438 -0.38 2060 -1.02 FA GRAV
COMLAB 566 0.84 735 0.55 714 0.08 808 0.05 3730 0.86 2350 2.13 AR AAS
COMLAB 520 -1.62 700 -0.46 720 0.23 780 -0.67 3640 0.48 2010 -1.56 PR,AR AAS
COMLAB 540 -0.55 690 -0.75 698 -0.33 776 -0.77 3810 1.19 2070 -0.91 PR,AR AAS
COMLAB 569 1.00 775 1.70 719 0.20 828 0.57 3650 0.52 2310 1.70 AR AAS
COMLAB 550 -0.02 709 -0.20 702 -0.23 796 -0.26 3510 -0.07 2180 0.28 AAS
COMLAB 537 -0.71 685 -0.89 683 -0.72 761 -1.16 3480 -0.20 2063 -0.99 AAS
COMLAB 545 -0.28 684 -0.92 677 -0.87 742 -1.65 3660 0.56 2110 -0.48 PR,AR AAS
COMLAB 547 -0.17 703 -0.37 694 -0.44 800 -0.16 3451 -0.32 2151 -0.03 FA GRAV
COMLAB 569 1.02 805 2.56 817 2.72 851 1.16 3969 1.86 2213 0.64 FA GRAV
COMLAB 520 -1.62 684 -0.92 691 -0.51 765 -1.06 3312 -0.91 1931 -2.42 AAS
COMLAB 580 1.59 719 0.09 703 -0.21 785 -0.54 3469 -0.24 2135 -0.21 FA,PR AAS
COMLAB 530 -1.09 698 -0.52 686 -0.64 801 -0.13 3423 -0.44 2133 -0.23 FA GRAV
COMLAB 566 0.87 753 1.06 772 1.58 850 1.13 3946 1.77 2224 0.76 FA GRAV
COMLAB 541 -0.51 700 -0.45 671 -1.04 786 -0.50 3221 -1.29 2086 -0.74 FA,AR MS
COMLAB 539 -0.62 734 0.52 748 0.96 nr nr 3798 1.14 2171 0.18 FA GRAV
COMLAB 552 0.09 683 -0.95 686 -0.64 796 -0.26 3464 -0.27 2155 0.01 FA GRAV
COMLAB 543 -0.39 533 -3.00 401 -3.00 651 -3.00 3151 -1.58 2134 -0.22 FA GRAV
COMLAB 555 0.25 742 0.75 717 0.15 828 0.57 3550 0.10 2240 0.93 PR,AR AAS
COMLAB 545 -0.28 700 -0.46 706 -0.13 802 -0.10 3510 -0.07 2160 0.07 FA GRAV
COMLAB 569 0.99 19 -3.00 797 2.20 864 1.50 3879 1.48 2215 0.67 FA GRAV
COMLAB 557 0.36 753 1.07 770 1.51 856 1.29 3942 1.75 2220 0.72 FA GRAV
COMLAB 510 -2.14 716 -0.01 512 -3.00 742 -1.65 3209 -1.34 2098 -0.61 FA AAS
COMLAB 507 -2.32 610 -3.00 627 -2.15 685 -3.00 3112 -1.75 2056 -1.07 FA ES
COMLAB 579 1.54 721 0.14 711 0.00 813 0.18 3551 0.10 2305 1.64 PR,AD AAS
COMLAB 567 0.90 749 0.95 732 0.54 826 0.52 3590 0.27 2110 -0.48 AR
COMLAB 545 -0.28 734 0.52 735 0.61 829 0.60 3648 0.51 2262 1.17 FA AAS
COMLAB 538 -0.65 721 0.14 704 -0.19 797 -0.24 3378 -0.63 2076 -0.85 AAS
COMLAB 544 -0.34 738 0.63 712 0.03 835 0.75 3525 -0.01 2194 0.43 PR,AR ES
COMLAB 542 -0.44 715 -0.03 758 1.20 837 0.80 3700 0.73 2100 -0.59 FA GRAV
COMLAB 465 -3.00 647 -1.98 684 -0.69 685 -3.00 3316 -0.89 1906 -2.70 FA GRAV
COMLAB 488 -3.00 660 -1.60 665 -1.17 746 -1.54 3213 -1.32 1793 -3.00 FA GRAV
COMLAB 433 -3.00 578 -3.00 646 -1.67 670 -3.00 2714 -3.00 1713 -3.00 FA GRAV
COMLAB 563 0.68 729 0.38 725 0.36 825 0.49 3655 0.54 2180 0.28 AAS
COMLAB 593 2.31 680 -1.03 662 -1.25 782 -0.63 3411 -0.49 2132 -0.24 AR AAS
COMLAB 510 -2.17 668 -1.38 687 -0.63 772 -0.87 3687 0.67 2140 -0.15 AD ES
COMLAB 552 0.09 701 -0.43 692 -0.49 798 -0.20 3481 -0.19 2217 0.68 PR,AR AAS
COMLAB 488 -3.00 593 -3.00 711 0.00 791 -0.39 3397 -0.55 2156 0.02 FA GRAV
COMLAB 566 0.84 756 1.15 749 0.97 798 -0.20 3545 0.08 2186 0.35 FA GRAV
COMLAB 555 0.25 718 0.06 730 0.49 828 0.57 3530 0.01 2292 1.50 FA AAS
COMLAB 554 0.20 749 0.95 772 1.56 847 1.06 3949 1.78 2218 0.70 FA,PR AAS
COMLAB 554 0.19 779 1.81 667 -1.13 864 1.49 nr nr 2285 1.43 FA AAS
COMLAB 545 -0.28 704 -0.34 695 -0.41 798 -0.20 3465 -0.26 2088 -0.72 FA AAS
COMLAB nr nr 653 -1.81 580 -3.00 698 -2.79 nr nr nr nr FA GRAV
COMLAB 580 1.57 787 2.05 730 0.48 835 0.76 3569 0.18 2205 0.55 AR AAS
COMLAB 521 -1.57 715 -0.03 749 0.97 854 1.24 3510 -0.07 2150 -0.04 PR,AR AAS
COMLAB 546 -0.23 744 0.81 746 0.90 812 0.16 3494 -0.14 2140 -0.15 FA GRAV
COMLAB 542 -0.44 700 -0.46 715 0.10 786 -0.51 3380 -0.62 2260 1.15 AR ES
COMLAB 560 0.52 752 1.04 742 0.79 853 1.22 3510 -0.07 2206 0.57 PR,AR AAS
COMLAB 524 -1.41 678 -1.09 670 -1.05 759 -1.21 3250 -1.17 2010 -1.56 AR AAS
COMLAB 524 -1.39 706 -0.30 688 -0.58 814 0.22 3564 0.16 2081 -0.79 PR,AR AAS
COMLAB 494 -3.00 540 -3.00 562 -3.00 719 -2.25 3432 -0.40 1836 -3.00 FA GRAV
COMLAB 560 0.52 735 0.55 710 -0.03 830 0.62 3470 -0.24 2190 0.39 PR,AR AAS
COMLAB 559 0.49 685 -0.90 699 -0.30 781 -0.63 3385 -0.60 2147 -0.08
COMLAB 580 1.59 787 2.04 814 2.64 899 2.40 4082 2.34 1975 -1.95 PR,AR AAS
COMLAB 566 0.84 765 1.41 753 1.08 841 0.91 3834 1.29 2120 -0.37 PR,AR AAS
MINELAB 537 -0.71 717 0.03 765 1.38 842 0.93 3760 0.98 2171 0.18 FA GRAV
MINELAB 560 0.52 750 0.98 770 1.51 860 1.40 4010 2.04 2220 0.72 FA GRAV
MINELAB 526 -1.30 691 -0.71 704 -0.19 780 -0.67 3528 0.00 2039 -1.25 FA GRAV
MINELAB 559 0.48 754 1.09 776 1.66 843 0.95 3976 1.89 2237 0.90 FA GRAV
MINELAB 533 -0.95 682 -0.98 684 -0.69 778 -0.72 3348 -0.76 2152 -0.02 FA GRAV
MINELAB 541 -0.51 698 -0.53 678 -0.85 789 -0.44 3368 -0.67 2144 -0.11 FA
MINELAB 535 -0.82 689 -0.78 683 -0.72 759 -1.21 3319 -0.88 2041 -1.23 PR,AR AAS
MINELAB 548 -0.12 705 -0.32 691 -0.51 791 -0.39 3423 -0.44 2143 -0.12 FA GRAV
MINELAB 552 0.09 689 -0.78 673 -0.97 778 -0.72 3379 -0.62 2141 -0.14 PR,AR AAS
MINELAB 574 1.27 715 -0.03 711 0.00 881 1.94 3595 0.29 2296 1.54 PR,AR AAS
MINELAB 516 -1.84 666 -1.44 716 0.13 765 -1.07 3475 -0.22 1980 -1.89 PR,AR AAS
MINELAB 555 0.23 734 0.51 768 1.45 841 0.91 3994 1.97 2197 0.47 FA GRAV
MINELAB 523 -1.46 665 -1.46 647 -1.64 741 -1.68 3199 -1.38 2032 -1.32 FA GRAV
MINELAB 501 -2.62 700 -0.46 751 1.04 752 -1.38 3102 -1.79 2371 2.36 FA GRAV
MINELAB 545 -0.27 718 0.06 682 -0.73 831 0.65 3539 0.05 2248 1.02 FA GRAV
MINELAB 364 -3.00 450 -3.00 458 -3.00 523 -3.00 2158 -3.00 1278 -3.00 FA GRAV
MINELAB 552 0.09 700 -0.46 708 -0.08 797 -0.23 3507 -0.08 2148 -0.07 FA GRAV
MINELAB 545 -0.28 729 0.38 737 0.67 826 0.52 3695 0.71 2227 0.79 PR,AR AAS
MINELAB 580 1.59 763 1.35 718 0.18 850 1.14 3468 -0.25 2163 0.10 PR,AR AAS
MINELAB 253 -3.00 363 -3.00 282 -3.00 405 -3.00 1910 -3.00 1147 -3.00 FA GRAV
MINELAB 507 -2.30 672 -1.28 702 -0.23 746 -1.54 3389 -0.58 2110 -0.48 FA GRAV
MINELAB 530 -1.08 695 -0.61 686 -0.63 787 -0.48 3391 -0.57 2078 -0.82 FA GRAV
MINELAB 568 0.95 763 1.35 782 1.83 865 1.54 4045 2.18 2241 0.95 AR AAS
MINELAB 562 0.61 738 0.63 718 0.19 817 0.29 3572 0.19 2176 0.24 AR AAS
MINELAB 561 0.58 760 1.26 783 1.85 863 1.48 4040 2.16 2220 0.72 AAS
MINELAB 556 0.32 739 0.66 741 0.77 859 1.37 3568 0.17 2189 0.38 AR AAS
MINELAB 521 -1.56 691 -0.71 667 -1.13 773 -0.85 3314 -0.90 2115 -0.42 AR AAS
MINELAB 551 0.04 706 -0.29 693 -0.46 800 -0.15 3514 -0.05 2162 0.09 FA GRAV
MINELAB 501 -2.64 686 -0.86 710 -0.03 772 -0.88 3908 1.61 2111 -0.47 FA GRAV
MINELAB 552 0.09 692 -0.69 689 -0.56 780 -0.67 3445 -0.35 2138 -0.17 PR,AR AAS
MINELAB 580 1.59 731 0.43 726 0.38 825 0.49 3363 -0.69 2095 -0.64 PR,AR AAS,DIBK
MINELAB 238 -3.00 358 -3.00 402 -3.00 491 -3.00 1976 -3.00 842 -3.00 FA GRAV
MINELAB 455 -3.00 566 -3.00 580 -3.00 717 -2.28 3273 -1.07 1963 -2.08 FA GRAV
MINELAB 565 0.80 772 1.62 791 2.04 880 1.91 3991 1.96 2189 0.38 PR,AR AAS
MINELAB 557 0.36 716 0.00 705 -0.16 807 0.03 3456 -0.30 2167 0.14 FA GRAV
MINELAB 462 -3.00 688 -0.80 695 -0.41 761 -1.16 3436 -0.38 2156 0.02 FA GRAV
MINELAB 580 1.59 791 2.16 830 3.00 902 2.48 4019 2.07 2366 2.30 AAS
MINELAB 533 -0.95 671 -1.30 667 -1.14 765 -1.07 3262 -1.12 2067 -0.95 PR,AR AAS
MINELAB 554 0.20 700 -0.46 685 -0.67 796 -0.26 3466 -0.26 2170 0.17 FA GRAV
MINELAB 546 -0.23 701 -0.43 691 -0.51 796 -0.26 3481 -0.19 2187 0.36 PR,AR AAS
MINELAB 540 -0.55 700 -0.46 680 -0.80 780 -0.67 3439 -0.37 2168 0.15 PR,AR AAS
MINELAB 577 1.43 751 1.01 712 0.03 827 0.54 3531 0.02 2228 0.80 AR AAS
MINELAB 570 1.06 740 0.69 719 0.20 810 0.11 3320 -0.87 2165 0.12 AR AAS
MINELAB 563 0.67 713 -0.08 709 -0.06 798 -0.19 3825 1.25 2240 0.93 AR AAS
MINELAB 565 0.79 730 0.40 724 0.33 838 0.83 3400 -0.54 2190 0.39 PR,AR AAS
MINELAB 560 0.52 714 -0.06 721 0.26 808 0.05 3530 0.01 2198 0.48 PR,AR AAS
MINELAB 538 -0.66 715 -0.03 702 -0.23 805 -0.02 3345 -0.77 2120 -0.37 PR,AR AAS
MINELAB 554 0.20 711 -0.14 691 -0.51 801 -0.13 3460 -0.28 2170 0.17 PR,AR ES
MINELAB 559 0.47 753 1.07 743 0.82 841 0.91 3560 0.14 2250 1.04 AR AAS
MINELAB 588 2.02 733 0.49 728 0.44 861 1.42 3390 -0.58 2000 -1.67 FA AAS
MINELAB 540 -0.55 740 0.69 700 -0.28 800 -0.15 3430 -0.41 2010 -1.56 FA,GF
MINELAB 538 -0.66 712 -0.11 696 -0.39 812 0.16 3402 -0.53 2106 -0.52 AR DIBK
MINELAB 567 0.90 680 -1.03 670 -1.05 787 -0.49 3190 -1.42 2090 -0.70 PR,AR AAS
MINELAB 569 1.00 695 -0.60 702 -0.23 774 -0.82 3605 0.33 2335 1.97 PR,AR AAS
MINELAB 470 -3.00 675 -1.17 646 -1.67 763 -1.12 3197 -1.39 1860 -3.00 GRAV
MINELAB 550 -0.02 655 -1.75 633 -2.00 753 -1.37 3374 -0.64 2068 -0.93 PP XRF
MINELAB 560 0.52 760 1.27 774 1.61 852 1.19 3934 1.72 2228 0.80 FA GRAV
MINELAB 571 1.11 737 0.61 744 0.85 825 0.49 3177 -1.48 2181 0.29 AAS
Highlighted values are outliers which are assigned a z-score of -3.00 or 3.00 in the standardised values.
Method Reading
Alex Stewart International Argentina SA - Perito Moreno Report Page 7
Gold on Carbon Assay - Mean of Absolute Standardized Values - April 2019 Gold on Carbon Assay - Mean of Standardized Values - April 2019
Standard Deviations Standard Deviations
0 1 2
ASA MENDOZA
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
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MINELAB
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MINELAB
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MINELAB
MINELAB
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MINELAB
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MINELAB
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MINELAB
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MINELAB
MINELAB
MINELAB
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MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
ASA MENDOZA
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
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COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
MINELAB
MINELAB
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Alex Stewart International Argentina SA - Perito Moreno ReportPage 8
Silver on Carbon Round Robin - Summary Statistics, Assays, Standardised Values and Graphs - April 2019
Standard Reference GBC319-1 GBC319-2 GBC319-3 GBC319-4 GLC319-1 GLC319-2
MEAN (ppm) 224 214 203 222 380 1050
STDEV (ppm) 84 25 38 32 38 60
95% CI (ppm) 21 7 10 8 10 17
95% CI (%) 9.51% 3.13% 4.74% 3.63% 2.66% 1.58% Silver on Carbon Assay - Mean of Absolute Standardized Values - April 2019MIN (ppm) 56 151 110 152 305 904
MEDIAN (ppm) 262 218 210 227 380 1049
MAX (ppm) 387 251 283 271 470 1200
IQR (ppm) 143 24 52 39 55 73
COUNT 61 55 60 60 54 52
Standard Reference GBC319-1 GBC319-2 GBC319-3 GBC319-4 GLC319-1 GLC319-2
Lab Reference assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score
ASA MENDOZA 296 0.85 227 0.55 210 0.19 234 0.39 318 -1.67 1004 -0.75 FA GRAV
COMLAB 93 -1.55 137 -3.00 136 -1.78 175 -1.49 305 -2.00 304 -3.00 FA GRAV
COMLAB 262 0.45 202 -0.47 203 0.01 224 0.05 334 -1.23 904 -2.42 4A AAS
COMLAB 202 -0.26 190 -0.94 181 -0.58 216 -0.20 313 -1.79 787 -3.00 FA GRAV
COMLAB 323 1.18 251 1.49 249 1.22 270 1.51 380 -0.01 1047 -0.05 FA GRAV
COMLAB 260 0.43 235 0.85 240 0.98 255 1.04 435 1.46 1200 2.49 PR,AR AAS
COMLAB 286 0.74 229 0.62 218 0.41 243 0.67 384 0.11 1057 0.12 FA GRAV
COMLAB 263 0.47 239 1.01 224 0.56 239 0.53 360 -0.54 1008 -0.69 FA GRAV
COMLAB 289 0.78 229 0.61 237 0.90 255 1.04 449 1.83 1065 0.25 2A,FA AAS,GRAV
COMLAB 280 0.67 228 0.58 233 0.79 244 0.69 432 1.38 1067 0.28 FA GRAV
COMLAB 284 0.72 234 0.81 218 0.40 241 0.59 363 -0.46 1037 -0.21 FA GRAV
COMLAB 291 0.80 209 -0.18 138 -1.72 226 0.12 351 -0.78 1044 -0.10 FA GRAV
COMLAB 254 0.36 222 0.34 214 0.29 227 0.15 378 -0.06 1060 0.17 PR,AR AAS
COMLAB 299 0.89 216 0.10 269 1.75 157 -2.06 641 3.00 1790 3.00 FA GRAV
COMLAB 387 1.94 26 -3.00 283 2.13 252 0.95 503 3.00 1073 0.39 FA GRAV
COMLAB 285 0.73 244 1.21 239 0.95 250 0.88 420 1.06 1076 0.43 AD AAS
COMLAB 108 -1.38 157 -2.25 151 -1.38 196 -0.83 383 0.07 1080 0.50 AR
COMLAB 272 0.57 212 -0.08 208 0.14 230 0.26 351 -0.78 1032 -0.30 AAS
COMLAB 318 1.12 249 1.41 246 1.14 210 -0.39 420 1.06 1080 0.50 FA GRAV
COMLAB 284 0.72 223 0.38 229 0.69 240 0.56 368 -0.32 1168 1.96 FA,AR GRAV,ES
COMLAB 278 0.65 212 -0.06 212 0.24 231 0.28 367 -0.35 1045 -0.08 AAS
COMLAB 273 0.59 216 0.10 215 0.32 235 0.40 347 -0.88 1082 0.53 AR AAS
COMLAB 292 0.81 247 1.32 251 1.26 256 1.06 417 0.98 1105 0.91 AD ES
COMLAB 231 0.09 215 0.06 206 0.08 222 -0.01 367 -0.35 1162 1.86 PR,AR AAS
COMLAB 288 0.76 239 1.01 246 1.14 257 1.10 421 1.09 1061 0.18 FA,PR AAS
COMLAB 224 0.00 214 0.02 207 0.10 224 0.06 401 0.55 965 -1.40 AR AAS
COMLAB 320 1.14 246 1.29 235 0.85 258 1.13 391 0.29 1063 0.22 FA AAS
COMLAB 181 -0.51 227 0.54 222 0.50 271 1.54 713 3.00 1250 3.00 PR,AR AAS
COMLAB 176 -0.56 193 -0.83 188 -0.41 216 -0.21 346 -0.92 866 -3.00 AR ES
COMLAB 174 -0.59 215 0.06 245 1.11 227 0.15 404 0.63 978 -1.19 AR AAS
COMLAB 270 0.56 212 -0.06 214 0.30 237 0.48 384 0.09 1044 -0.09 PR,AR AAS
COMLAB 195 -0.34 220 0.26 195 -0.21 225 0.09 425 1.19 1090 0.67 PR,AR AAS
COMLAB 138 -1.02 131 -3.00 124 -2.11 152 -2.21 315 -1.75 1097 0.78
COMLAB 136 -1.04 179 -1.38 172 -0.82 173 -1.56 448 1.80 1037 -0.21 PR,AR AAS
MINELAB 266 0.50 215 0.07 213 0.28 224 0.06 342 -1.02 985 -1.07 FA GRAV
MINELAB 279 0.65 225 0.46 229 0.69 261 1.22 376 -0.12 985 -1.07 FA GRAV
MINELAB 241 0.21 220 0.26 255 1.37 178 -1.40 263 -3.00 949 -1.67 FA GRAV
MINELAB 300 0.91 246 1.30 233 0.79 268 1.45 391 0.29 1046 -0.06 FA
MINELAB 63 -1.91 109 -3.00 110 -2.47 153 -2.19 260 -3.00 1000 -0.83 PR,AR AAS
MINELAB 282 0.69 225 0.46 213 0.26 237 0.47 370 -0.27 1025 -0.41 FA GRAV
MINELAB 167 -0.67 209 -0.18 207 0.10 213 -0.29 393 0.34 1050 0.00 PR,AR AAS
MINELAB 289 0.78 225 0.45 161 -1.12 187 -1.12 415 0.92 801 -3.00 FA GRAV
MINELAB 71 -1.81 158 -2.23 150 -1.41 163 -1.89 382 0.05 1059 0.16 AD AAS
MINELAB 134 -1.07 161 -2.09 159 -1.17 190 -1.02 350 -0.80 1059 0.15 PR,AR AAS
MINELAB 83 -1.67 196 -0.70 166 -0.98 270 1.51 336 -1.18 1243 3.00 PR,AR AAS
MINELAB 282 0.69 290 3.00 340 3.00 342 3.00 1130 3.00 1852 3.00 FA GRAV
MINELAB 300 0.91 236 0.89 237 0.91 246 0.74 375 -0.14 1012 -0.63 FA GRAV
MINELAB 101 -1.46 185 -1.16 168 -0.92 201 -0.66 408 0.73 1141 1.51 AR AAS
MINELAB 114 -1.31 188 -1.02 180 -0.61 200 -0.71 385 0.12 1018 -0.52 AR AAS
MINELAB 62 -1.92 151 -2.48 148 -1.46 184 -1.20 388 0.19 958 -1.52 AAS
MINELAB 119 -1.25 177 -1.47 181 -0.58 216 -0.20 374 -0.15 1137 1.43 AR AAS
MINELAB 56 -2.00 128 -3.00 136 -1.79 164 -1.84 470 2.38 1181 2.18 AR AAS
MINELAB 268 0.53 212 -0.06 214 0.29 231 0.28 322 -1.55 992 -0.96 FA GRAV
MINELAB 330 1.26 327 3.00 325 3.00 343 3.00 263 -3.00 1113 1.05 FA GRAV
MINELAB 143 -0.96 176 -1.50 167 -0.96 205 -0.54 377 -0.09 11233 3.00 AR AAS
MINELAB 80 -1.71 174 -1.58 166 -0.98 191 -0.99 333 -1.26 1000 -0.83 PR,AR AAS
MINELAB 192 -0.38 159 -2.17 154 -1.29 176 -1.46 107 -3.00 431 -3.00 FA GRAV
MINELAB 242 0.22 222 0.34 210 0.18 229 0.21 380 -0.01 1070 0.33 FA GRAV
MINELAB 291 0.80 239 1.01 204 0.03 261 1.23 427 1.24 1086 0.60 AAS
MINELAB 261 0.44 209 -0.20 205 0.04 226 0.11 353 -0.72 1000 -0.82 3A AAS
MINELAB 135 -1.05 220 0.26 200 -0.08 219 -0.10 404 0.63 1010 -0.66 AR AAS
MINELAB 133 -1.08 218 0.16 199 -0.11 220 -0.08 407 0.71 1064 0.23 AR AAS
MINELAB 268 0.53 232 0.73 218 0.40 242 0.63 349 -0.83 978 -1.19 PP XRF
Highlighted values are outliers which are assigned a z-score of -3.00 or 3.00 in the standardised values. Insufficient reliable results were received for the highlighted material. These results do not contribute to the error charts.
Method Reading
Alex Stewart International Argentina SA - Perito Moreno Report Page 9
Silver on Carbon Assay - Mean of Absolute Standardized Values - April 2019 Silver on Carbon Assay - Mean of Standardized Values - April 2019
Standard Deviations Standard Deviations
0 1 2
ASA MENDOZA
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-3 -2 -1 0 1 2 3
Alex Stewart International Argentina SA - Perito Moreno ReportPage 10
Silver (Total Digest) Round Robin - Summary Statistics, Assays, Standardised Values and Graphs - April 2019
Standard Reference GBM319-1 GBM319-2 GBM319-3 GBM319-4 GBM319-5 GBM319-6 GBM319-7 GBM319-8 GBM319-9 GBM319-10
MEAN (ppm) 7.2 0.3 7.4 3.3 7.4 3.5 51.8 8.8 0.7 1.1
STDEV (ppm) 0.5 0.1 0.4 0.4 0.8 0.6 2.8 0.7 0.1 0.2
95% CI (ppm) 0.1 0.0 0.1 0.1 0.2 0.1 0.7 0.2 0.0 0.1
95% CI (%) 1.70% 12.17% 1.49% 2.72% 2.60% 4.15% 1.33% 1.91% 7.13% 4.89% Silver Assay (Total Digest) - Mean of Absolute Standardized Values - April 2019MIN (ppm) 6.0 0.2 6.4 2.5 6.0 2.0 45.7 7.2 0.4 0.7
MEDIAN (ppm) 7.1 0.2 7.4 3.3 7.3 3.4 51.5 8.9 0.7 1.1
MAX (ppm) 8.5 0.4 8.3 4.2 9.4 4.8 58.1 10.3 1.0 1.6
IQR (ppm) 0.5 0.1 0.7 0.4 1.1 0.5 3.6 0.8 0.2 0.2
COUNT 61 20 61 61 63 60 65 60 35 47
Standard Reference GBM319-1 GBM319-2 GBM319-3 GBM319-4 GBM319-5 GBM319-6 GBM319-7 GBM319-8 GBM319-9 GBM319-10
Lab Reference assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score
MAXXAM ONTARIO 8.0 1.56 <5.0 bld 7.0 -0.86 <5.0 bld 7.0 -0.52 <5.0 bld 48.0 -1.35 9.0 0.28 <5.0 bld <5.0 bld NAA
ASA MENDOZA 6.8 -0.91 <0.5 bld 6.8 -1.32 2.5 -2.18 7.0 -0.52 2.3 -2.07 56.9 1.83 8.9 0.13 <0.5 bld <0.5 -3.00 4A ES
COMLAB 7.1 -0.29 <0.3 bld 7.9 1.21 3.3 0.11 6.7 -0.90 3.9 0.76 53.8 0.72 9.3 0.73 0.8 0.94 1.3 1.11 4A ICP
COMLAB 7.5 0.53 0.3 0.56 7.6 0.52 4.2 2.67 9.4 2.59 4.3 1.47 55.2 1.22 9.4 0.88 0.9 1.65 1.2 0.57 4A ICP
COMLAB 7.0 -0.50 0.4 1.97 7.7 0.75 3.6 0.96 7.2 -0.26 3.7 0.41 51.0 -0.28 9.6 1.19 0.9 1.65 1.4 1.65 4A ICP
COMLAB 7.2 -0.09 <0.4 bld 7.3 -0.17 3.4 0.39 7.5 0.13 3.7 0.41 52.0 0.08 9.3 0.73 0.7 0.23 0.9 -1.05 4A AAS
COMLAB 7.9 1.35 0.7 3.00 7.6 0.52 2.9 -1.04 6.3 -1.42 3.0 -0.83 41.4 -3.00 7.8 -1.54 0.8 0.94 0.8 -1.59 4A ICP
COMLAB 5.6 -3.00 <0.5 bld 6.9 -1.16 2.7 -1.66 7.2 -0.23 2.0 -2.67 54.3 0.90 12.2 3.00 <0.5 bld <0.5 -3.00 4A ES
COMLAB 7.2 -0.09 <0.5 bld 6.8 -1.32 2.9 -1.04 8.0 0.78 3.0 -0.83 53.3 0.54 8.2 -0.94 0.5 -1.18 0.9 -1.05 4A ES
COMLAB 7.0 -0.50 <0.5 bld 7.7 0.75 3.3 0.11 6.7 -0.90 2.9 -1.01 51.5 -0.10 9.0 0.28 <0.5 bld 1.0 -0.51 4A ES
COMLAB 7.2 -0.09 <0.5 bld 7.8 0.98 3.2 -0.18 8.2 1.03 3.4 -0.12 52.7 0.33 8.8 -0.03 <0.5 bld <0.5 -3.00 4A ES
COMLAB 8.0 1.56 <0.5 bld 7.9 1.21 3.7 1.25 7.4 0.00 3.5 0.05 53.8 0.72 9.0 0.28 0.7 0.23 1.4 1.65 4A ES
COMLAB 8.5 2.59 <0.5 bld 7.6 0.52 3.7 1.25 7.4 0.00 2.4 -1.89 53.2 0.51 9.9 1.64 0.7 0.23 0.9 -1.05 4A ICP
COMLAB 6.7 -1.12 <0.5 bld 7.2 -0.40 3.3 0.11 7.3 -0.13 3.6 0.23 50.5 -0.46 8.6 -0.33 <0.5 bld 1.0 -0.51 4A ES
COMLAB 8.0 1.56 <1.0 bld 7.0 -0.86 3.0 -0.75 9.0 2.07 4.0 0.94 51.0 -0.28 11.0 3.00 <1.0 bld 1.0 -0.51 4A ES
COMLAB 7.1 -0.29 <0.5 bld 7.1 -0.63 3.2 -0.18 6.3 -1.42 2.6 -1.54 53.5 0.61 8.9 0.13 <0.5 bld 1.0 -0.51 4A ES
COMLAB 7.0 -0.50 <0.5 bld 7.2 -0.40 3.1 -0.46 6.9 -0.65 3.3 -0.30 52.5 0.26 8.6 -0.33 0.7 0.23 1.1 0.03 4A ES
COMLAB 7.3 0.12 <0.5 bld 8.2 1.90 3.7 1.25 6.6 -1.03 4.0 0.94 50.7 -0.39 8.8 -0.03 <0.5 bld 1.0 -0.51 4A ES
COMLAB 7.4 0.33 <0.5 bld 8.0 1.44 3.2 -0.18 8.5 1.42 3.3 -0.30 49.1 -0.96 8.2 -0.94 0.5 -1.18 0.9 -1.05 4A ES
COMLAB 6.7 -1.12 <0.5 bld 7.4 0.06 2.9 -1.04 7.2 -0.26 4.3 1.47 53.6 0.65 7.4 -2.15 <0.5 bld 0.8 -1.59 4A ES
COMLAB 7.1 -0.29 0.2 -0.58 7.0 -0.93 3.0 -0.89 7.5 0.16 3.3 -0.28 50.1 -0.60 8.9 0.16 0.6 -0.40 1.1 -0.24 4A MS
COMLAB 7.3 0.14 0.3 0.42 7.4 0.04 3.1 -0.41 7.0 -0.49 3.8 0.62 51.3 -0.18 8.9 0.17 1.2 3.00 1.4 1.43 5A ES
COMLAB 6.6 -1.23 0.2 -0.68 7.4 -0.01 3.1 -0.45 8.4 1.34 3.9 0.71 53.6 0.65 8.8 0.05 0.6 -0.57 1.2 0.42 4A ICP
COMLAB 7.4 0.33 0.2 -0.86 7.4 0.06 3.4 0.39 7.2 -0.26 3.4 -0.12 48.8 -1.07 8.8 -0.03 0.8 0.94 1.0 -0.51 4A MS
COMLAB 7.1 -0.29 <2.0 bld 7.7 0.75 3.3 0.11 7.8 0.52 3.3 -0.30 49.6 -0.78 8.3 -0.78 <2.0 bld <2.0 bld 4A AAS
COMLAB nr nr nr nr nr nr nr nr nr nr nr nr 55.0 1.15 nr nr nr nr nr nr 4A
COMLAB 7.4 0.33 0.5 3.00 7.6 0.52 3.4 0.39 7.6 0.26 3.1 -0.65 50.0 -0.64 9.6 1.19 0.8 0.94 nr nr 4A AAS
COMLAB 7.0 -0.50 bld bld 7.2 -0.40 3.1 -0.46 8.0 0.78 bld bld 54.0 0.79 8.0 -1.24 bld bld bld bld 4A AAS
COMLAB 7.5 0.53 0.3 -0.15 7.5 0.29 3.3 -0.04 8.0 0.78 3.7 0.41 54.0 0.79 8.8 -0.03 0.6 -0.47 0.9 -1.05 4A MS
COMLAB 7.8 1.15 <0.2 bld 7.3 -0.17 3.5 0.68 8.4 1.29 3.5 0.05 52.9 0.40 9.3 0.73 0.5 -1.18 1.2 0.57 4A ES
COMLAB 7.1 -0.29 <2.0 bld 6.6 -1.78 2.7 -1.61 6.0 -1.81 3.3 -0.30 52.8 0.36 9.3 0.73 <2.0 bld <2.0 bld 4A ES
COMLAB 7.0 -0.50 <0.5 bld 7.3 -0.17 3.0 -0.75 6.8 -0.77 3.3 -0.30 49.7 -0.74 8.5 -0.48 0.7 0.23 1.1 0.03 4A AAS
COMLAB 7.0 -0.50 <1.0 bld 7.0 -0.86 3.0 -0.75 8.0 0.78 4.0 0.94 52.0 0.08 8.0 -1.24 <1.0 bld 1.0 -0.51 4A ICP
COMLAB 7.0 -0.50 <5.0 bld 7.0 -0.86 <5.0 bld 6.0 -1.81 <5.0 bld 47.0 -1.71 8.0 -1.24 <5.0 bld <5.0 bld 4A AAS
COMLAB 10.0 3.00 <2.0 bld 10.1 3.00 3.4 0.39 6.7 -0.90 4.7 2.18 56.3 1.61 13.2 3.00 <2.0 bld <2.0 bld 4A ES
COMLAB 6.4 -1.73 0.2 -0.86 6.8 -1.32 2.9 -1.04 7.5 0.13 3.4 -0.12 45.7 -2.17 8.2 -0.94 0.6 -0.47 1.0 -0.51 4A AAS
COMLAB 7.4 0.33 <0.5 bld 7.2 -0.40 3.3 0.11 7.0 -0.52 3.2 -0.48 52.6 0.29 9.3 0.73 0.5 -1.18 1.0 -0.51 4A MS
COMLAB 7.0 -0.50 0.0 -3.00 6.8 -1.32 2.8 -1.46 4.8 -3.00 2.6 -1.63 49.9 -0.67 8.1 -1.09 0.4 -2.24 1.1 -0.24 4A MS
COMLAB 7.5 0.53 <0.5 bld 7.3 -0.17 2.9 -1.04 6.5 -1.16 3.1 -0.65 53.1 0.47 9.0 0.28 0.6 -0.47 1.3 1.11 4A ES
COMLAB 7.0 -0.52 0.2 -0.72 7.0 -0.86 3.3 0.22 6.5 -1.14 3.4 -0.16 51.1 -0.26 8.8 0.00 0.6 -0.33 1.1 -0.03 4A MS
COMLAB 7.1 -0.29 0.2 -0.86 7.2 -0.40 3.2 -0.18 7.3 -0.13 3.4 -0.12 51.4 -0.14 9.3 0.73 0.6 -0.47 1.2 0.57 4A MS
COMLAB 7.3 0.12 0.2 -0.86 7.5 0.29 3.3 0.11 7.7 0.39 3.4 -0.12 52.9 0.40 9.3 0.73 0.6 -0.47 1.2 0.57 4A ICP
COMLAB 6.9 -0.77 0.2 -0.29 7.3 -0.15 3.4 0.50 7.1 -0.43 3.6 0.23 50.7 -0.39 8.9 0.05 0.5 -1.32 0.7 -2.19 4A AAS
COMLAB <0.1 -3.00 <0.1 bld <0.1 -3.00 <0.1 -3.00 <0.1 -3.00 <0.1 -3.00 <0.1 -3.00 <0.1 -3.00 <0.1 -3.00 <0.1 -3.00 4A
COMLAB 6.0 -2.56 <1.0 bld 7.0 -0.86 3.0 -0.75 7.0 -0.52 3.0 -0.83 51.0 -0.28 9.0 0.28 <1.0 bld <1.0 bld 4A ES
COMLAB 6.7 -1.12 0.2 -0.86 8.0 1.44 4.0 2.10 7.0 -0.52 3.0 -0.83 49.0 -0.99 7.3 -2.30 1.0 2.35 1.0 -0.51 4A ICP
COMLAB 7.0 -0.50 <1.0 bld 7.0 -0.86 3.0 -0.75 7.0 -0.52 3.0 -0.83 51.0 -0.28 9.0 0.28 <1.0 bld 1.0 -0.51 4A AAS
COMLAB 7.0 -0.58 0.3 0.27 6.9 -1.09 2.9 -0.92 7.5 0.17 2.7 -1.45 53.9 0.77 10.2 2.16 0.6 -0.54 1.1 -0.08 4A MS
COMLAB 7.2 -0.09 <0.5 bld 7.5 0.29 3.3 0.11 8.1 0.91 3.5 0.05 50.2 -0.57 8.3 -0.78 <0.5 bld 0.8 -1.59 4A ES
COMLAB 7.5 0.53 <1.0 bld 8.1 1.67 3.5 0.68 7.0 -0.52 3.8 0.58 51.0 -0.28 8.7 -0.18 <1.0 bld 1.2 0.57 4A ES
COMLAB 7.1 -0.29 0.8 3.00 7.5 0.27 3.3 0.08 6.9 -0.70 4.2 1.20 48.2 -1.29 8.6 -0.33 0.7 0.23 1.6 2.46 4A AAS
COMLAB 7.1 -0.27 <0.5 bld 7.3 -0.15 3.4 0.39 7.3 -0.12 3.4 -0.21 50.5 -0.46 8.5 -0.47 0.5 -0.97 1.0 -0.51 4A AAS
COMLAB 7.3 0.12 0.4 1.97 7.7 0.75 3.3 0.11 7.7 0.39 3.3 -0.30 52.5 0.26 9.3 0.73 0.7 0.23 1.2 0.57 4A AAS
COMLAB 7.4 0.41 0.3 0.13 6.8 -1.23 3.0 -0.69 6.5 -1.12 2.5 -1.70 50.1 -0.60 9.0 0.32 0.7 0.37 1.0 -0.30 4A AAS
COMLAB 6.6 -1.26 0.8 3.00 6.5 -1.97 4.1 2.44 6.5 -1.10 3.4 -0.07 45.8 -2.14 7.2 -2.41 1.2 3.00 1.3 1.26 4A MS
COMLAB 6.6 -1.32 <0.5 bld 7.7 0.75 3.3 0.11 7.6 0.26 3.3 -0.30 53.1 0.47 8.4 -0.63 0.9 1.65 1.1 0.03 4A ES
COMLAB 7.9 1.27 <2.0 bld 7.1 -0.68 3.1 -0.35 7.9 0.65 3.6 0.27 53.6 0.64 12.0 3.00 <2.0 bld <2.0 bld 4A ES
COMLAB 8.0 1.56 <2.0 bld 6.0 -3.00 3.0 -0.75 9.0 2.07 4.0 0.94 49.0 -0.99 9.0 0.28 <2.0 bld <2.0 bld 4A ES
COMLAB 7.4 0.41 0.3 0.70 7.4 0.13 3.7 1.33 6.6 -1.08 3.8 0.50 50.0 -0.64 7.7 -1.66 0.7 0.02 1.3 0.89 4A ES
COMLAB 8.1 1.77 0.2 -0.86 6.4 -2.24 2.7 -1.61 6.2 -1.55 3.7 0.41 47.3 -1.60 9.8 1.49 0.8 0.94 1.2 0.57 4A ES
COMLAB 6.4 -1.73 nr nr 8.0 1.44 3.6 0.96 8.2 1.03 4.4 1.65 54.4 0.93 8.6 -0.33 nr nr nr nr 4A AAS
COMLAB 7.8 1.05 0.2 -0.58 7.7 0.84 3.3 0.19 7.1 -0.45 3.2 -0.44 58.1 2.25 9.6 1.11 0.6 -0.40 1.1 0.14 4A MS
COMLAB 6.9 -0.70 0.4 1.97 7.9 1.21 3.2 -0.18 6.9 -0.65 3.5 0.05 50.4 -0.49 8.6 -0.33 0.7 0.23 1.3 1.11 4A ES
MINELAB 8.2 1.97 0.3 0.27 8.2 1.80 3.4 0.33 8.1 0.96 4.8 2.41 57.8 2.16 9.2 0.61 1.5 3.00 2.4 3.00 4A
MINELAB 10.2 3.00 0.8 3.00 9.4 3.00 4.0 2.04 9.0 2.03 4.7 2.18 57.9 2.19 10.3 2.23 1.8 3.00 3.2 3.00 4A ES
MINELAB <3.0 -3.00 <3.0 bld <3.0 -3.00 <3.0 bld <3.0 -3.00 <3.0 bld 46.1 -2.03 <3.0 -3.00 <3.0 bld <3.0 bld 3A,MICR MS
MINELAB 7.9 1.35 <1.0 bld 7.5 0.29 3.7 1.25 8.7 1.68 3.5 0.05 49.5 -0.82 9.0 0.28 <1.0 bld 1.4 1.65 4A AAS
MINELAB 7.6 0.74 <3.0 bld 8.3 2.12 <3.0 bld 8.0 0.78 <3.0 bld 54.7 1.04 9.8 1.49 <3.0 bld <3.0 bld 4A AAS
Highlighted values are outliers which are assigned a z-score of -3.00 or 3.00 in the standardised values. Insufficient reliable results were received for the highlighted material. These results do not contribute to the error charts.
Method Reading
Alex Stewart International Argentina SA - Perito Moreno Report Page 11
Silver Assay (Total Digest) - Mean of Absolute Standardized Values - April 2019 Silver Assay (Total Digest) - Mean of Standardized Values - April 2019
Standard Deviations Standard Deviations
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Alex Stewart International Argentina SA - Perito Moreno ReportPage 12
Silver (Partial Digest) Round Robin - Summary Statistics, Assays, Standardised Values and Graphs - April 2019
Standard Reference GBM319-1 GBM319-2 GBM319-3 GBM319-4 GBM319-5 GBM319-6 GBM319-7 GBM319-8 GBM319-9 GBM319-10
MEAN (ppm) 7.3 0.4 7.5 3.2 7.4 3.4 49.2 8.6 0.5 0.8
STDEV (ppm) 0.4 0.2 0.5 0.2 0.6 0.4 2.0 0.6 0.1 0.1
95% CI (ppm) 0.1 0.1 0.1 0.1 0.1 0.1 0.5 0.1 0.0 0.0
95% CI (%) 1.30% 21.17% 1.70% 1.87% 1.98% 2.84% 0.94% 1.60% 7.24% 5.02% Silver Assay (Partial Digest) - Mean of Absolute Standardized Values - April 2019MIN (ppm) 6.5 0.1 6.0 2.7 6.1 2.4 45.0 7.0 0.3 0.5
MEDIAN (ppm) 7.2 0.3 7.5 3.3 7.3 3.4 49.4 8.6 0.5 0.8
MAX (ppm) 8.2 1.0 8.9 3.9 8.9 4.5 53.0 10.1 0.8 1.2
IQR (ppm) 0.5 0.3 0.9 0.3 0.9 0.5 2.5 0.8 0.1 0.2
COUNT 68 33 72 61 69 70 70 70 41 46
Standard Reference GBM319-1 GBM319-2 GBM319-3 GBM319-4 GBM319-5 GBM319-6 GBM319-7 GBM319-8 GBM319-9 GBM319-10
Lab Reference assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score
COMLAB 7.1 -0.53 0.2 -0.79 7.9 0.80 3.9 2.72 8.6 1.91 3.2 -0.51 46.3 -1.50 8.3 -0.53 0.5 -0.26 0.9 0.39 AR ICP
COMLAB 7.2 -0.28 0.2 -0.79 8.4 1.72 3.3 0.22 7.3 -0.20 3.3 -0.27 47.2 -1.04 8.5 -0.19 0.5 -0.26 0.9 0.39 AR ICP
COMLAB 7.5 0.48 <0.4 bld 8.1 1.17 3.3 0.22 10.1 3.00 3.8 0.95 51.5 1.16 9.2 1.01 0.6 0.55 0.9 0.39 AR AAS
COMLAB 7.9 1.49 0.2 -0.79 7.5 0.07 3.1 -0.62 7.0 -0.68 3.6 0.46 47.4 -0.94 9.8 2.04 0.6 0.55 0.7 -0.99 AR ES
COMLAB 6.8 -1.29 0.4 0.06 7.9 0.80 3.5 1.05 7.1 -0.52 3.3 -0.27 46.5 -1.40 8.3 -0.53 0.5 -0.26 0.7 -0.99 AR ES
COMLAB 7.8 1.23 0.4 0.06 8.3 1.54 3.4 0.63 8.3 1.42 3.1 -0.75 50.2 0.49 8.7 0.16 0.5 -0.26 0.8 -0.30 AR ES
COMLAB 7.2 -0.28 <0.2 bld 8.0 0.99 3.6 1.47 8.2 1.26 3.7 0.71 50.6 0.70 8.7 0.16 0.6 0.55 0.8 -0.30 AR ICP
COMLAB 7.5 0.48 <0.2 bld 7.7 0.43 3.5 1.05 6.8 -1.01 3.6 0.46 49.4 0.08 8.0 -1.05 0.5 -0.26 0.9 0.39 AR ES
COMLAB 6.9 -1.04 0.2 -0.79 7.2 -0.48 3.4 0.63 6.9 -0.84 3.2 -0.51 46.9 -1.20 8.6 -0.02 0.5 -0.26 0.9 0.39 AR ES
COMLAB 7.5 0.48 <0.2 bld 7.4 -0.12 3.3 0.22 8.9 2.40 3.1 -0.75 48.2 -0.53 8.6 -0.02 <0.2 bld <0.2 -3.00 AR ES
COMLAB 7.0 -0.79 <0.2 bld 7.1 -0.67 3.1 -0.62 8.3 1.42 2.9 -1.24 48.2 -0.53 7.8 -1.39 0.5 -0.26 0.9 0.39 AR ES
COMLAB 7.5 0.48 nr nr 7.1 -0.67 3.2 -0.20 nr nr 3.5 0.22 48.3 -0.48 8.0 -1.05 nr nr nr nr AR AAS
COMLAB 7.0 -0.79 0.2 -0.79 7.6 0.25 3.6 1.47 6.9 -0.84 3.2 -0.51 48.2 -0.53 8.5 -0.19 0.4 -1.06 0.8 -0.30 AR AAS
COMLAB 7.0 -0.79 <0.2 bld 7.3 -0.30 2.9 -1.45 7.5 0.13 2.9 -1.24 48.2 -0.53 8.1 -0.87 0.4 -1.06 0.8 -0.30 AR ES
COMLAB 6.7 -1.49 0.2 -0.75 6.6 -1.58 2.8 -1.74 7.5 0.10 3.1 -0.68 48.0 -0.63 8.0 -1.03 0.5 -0.50 0.7 -0.85 AR MS
COMLAB 6.9 -1.14 0.2 -0.75 7.2 -0.52 3.3 0.05 8.2 1.21 3.4 -0.05 46.0 -1.64 8.0 -1.01 0.8 2.48 0.9 0.12 AR ES
COMLAB 7.2 -0.29 0.2 -0.83 7.4 -0.12 3.3 0.11 6.6 -1.32 3.1 -0.72 49.7 0.25 8.8 0.28 0.6 0.54 0.7 -0.72 AR ICP
COMLAB 6.5 -2.05 <0.3 bld 6.6 -1.58 3.3 0.22 6.6 -1.33 2.8 -1.48 49.3 0.03 7.0 -2.76 <0.3 bld <0.3 -3.00 AR ES
COMLAB 7.0 -0.79 <0.2 bld 7.5 0.07 3.2 -0.20 7.2 -0.36 3.0 -1.00 49.9 0.34 8.5 -0.19 0.3 -1.87 0.8 -0.30 AR ES
COMLAB 8.5 3.00 <0.5 bld 8.0 0.99 3.5 1.05 8.0 0.94 3.5 0.22 59.0 3.00 9.0 0.67 0.5 -0.26 1.5 3.00 AR ICP
COMLAB 7.1 -0.48 <1.0 bld 7.2 -0.58 2.8 -1.78 6.9 -0.89 3.2 -0.41 50.3 0.54 8.4 -0.39 <1.0 bld <1.0 bld AR ES
COMLAB 7.5 0.48 <0.5 bld 7.7 0.43 3.7 1.89 7.6 0.29 3.5 0.22 50.7 0.75 8.6 -0.02 <0.5 bld 0.7 -0.99 AR AAS
COMLAB <10.0 bld <10.0 bld <10.0 bld <10.0 bld <10.0 bld <10.0 bld 55.3 3.00 13.0 3.00 <10.0 bld <10.0 bld AR AAS
COMLAB 7.4 0.22 <0.5 bld 7.5 0.07 3.3 0.22 7.3 -0.20 3.3 -0.27 52.2 1.52 8.9 0.50 <0.5 bld 0.9 0.39 AR MS
COMLAB 7.0 -0.81 0.2 -0.70 7.3 -0.28 3.1 -0.49 6.7 -1.12 3.6 0.37 48.9 -0.17 8.3 -0.53 0.4 -0.82 0.7 -0.92 AR AAS
COMLAB 9.6 3.00 0.6 0.90 8.4 1.72 4.2 3.00 6.1 -2.14 2.4 -2.46 56.7 3.00 13.8 3.00 1.0 3.00 0.6 -1.68 AR ICP
COMLAB 7.0 -0.79 <1.0 bld 7.0 -0.85 2.0 -3.00 14.0 3.00 3.0 -1.00 49.0 -0.12 8.0 -1.05 1.0 3.00 1.0 1.09 AR ES
COMLAB 8.1 2.09 0.2 -0.87 6.8 -1.25 2.9 -1.49 7.2 -0.41 3.3 -0.32 47.7 -0.81 8.4 -0.38 0.4 -0.98 0.7 -0.92 AR MS
COMLAB 7.3 -0.03 <0.2 bld 7.6 0.25 3.2 -0.20 8.1 1.10 3.2 -0.51 50.2 0.49 8.5 -0.19 0.3 -1.87 0.7 -0.99 AR ES
COMLAB 7.2 -0.28 <0.5 bld 0.8 -3.00 3.4 0.63 7.7 0.45 3.9 1.19 46.9 -1.20 8.8 0.33 0.6 0.55 0.9 0.39 AR AAS
COMLAB 7.3 -0.03 <1.0 bld 7.5 0.07 3.3 0.22 7.1 -0.52 3.6 0.46 51.3 1.06 8.4 -0.36 <1.0 bld <1.0 bld AR ES
COMLAB 7.9 1.49 0.4 0.06 8.0 0.99 3.4 0.63 7.6 0.29 3.7 0.71 50.7 0.75 8.1 -0.87 0.5 -0.26 0.3 -3.00 1A ICP
COMLAB 7.3 -0.03 <0.3 bld 7.7 0.43 3.4 0.63 7.3 -0.20 4.4 2.41 47.3 -0.99 8.4 -0.36 0.6 0.55 0.9 0.39 AR AAS
COMLAB 7.0 -0.79 <0.3 bld 7.6 0.25 3.3 0.22 7.5 0.13 3.8 0.95 50.2 0.49 8.5 -0.19 0.7 1.35 1.1 1.78 AR AAS
COMLAB 7.5 0.38 0.5 0.40 8.1 1.08 3.5 1.09 7.8 0.58 3.6 0.41 47.9 -0.68 9.1 0.76 0.7 1.27 1.0 1.02 3A AAS
COMLAB 6.8 -1.29 0.3 -0.37 6.8 -1.22 3.0 -1.03 6.6 -1.33 2.9 -1.24 49.1 -0.07 7.8 -1.39 0.4 -1.06 0.7 -0.99 AR AAS
COMLAB 7.7 1.08 <5.0 bld 8.0 0.99 <5.0 bld 7.5 0.11 <5.0 bld 52.0 1.41 9.7 1.87 <5.0 bld <5.0 bld 3A AAS
COMLAB 7.4 0.27 0.5 0.48 7.2 -0.43 4.2 3.00 7.2 -0.33 2.6 -2.02 >20.0 ald 9.0 0.64 0.6 0.55 0.9 0.67 AR AAS
COMLAB 7.3 -0.03 0.2 -0.79 6.8 -1.22 3.2 -0.20 8.1 1.10 3.5 0.22 49.8 0.29 8.7 0.16 0.5 -0.26 0.9 0.39 AR MS
COMLAB 7.8 1.23 0.7 1.33 8.1 1.17 2.9 -1.45 8.2 1.26 3.1 -0.75 52.0 1.42 9.6 1.70 0.8 2.16 1.4 3.00 AR ES
COMLAB 7.6 0.83 <2.0 bld 7.6 0.23 3.5 1.14 8.2 1.20 3.7 0.66 51.6 1.21 10.1 2.56 <2.0 bld <2.0 bld AR ES
COMLAB 7.0 -0.79 <1.0 bld 7.0 -0.85 3.0 -1.03 7.0 -0.68 3.0 -1.00 45.0 -2.17 8.0 -1.05 <1.0 bld 1.0 1.09 2A,3A AAS
COMLAB 8.2 2.25 0.2 -0.79 6.9 -1.03 2.9 -1.45 6.7 -1.17 3.3 -0.27 50.8 0.80 9.5 1.53 0.6 0.55 0.5 -2.37 AR ES
COMLAB 7.0 -0.79 0.4 0.06 6.5 -1.77 4.7 3.00 3.0 -3.00 3.5 0.26 52.8 1.82 8.9 0.50 1.1 3.00 9.0 3.00 3A AAS
COMLAB 8.0 1.74 1.0 2.60 8.0 0.99 4.0 3.00 10.0 3.00 3.0 -1.00 58.0 3.00 10.0 2.39 1.0 3.00 1.0 1.09 3A ICP
COMLAB 7.0 -0.79 0.7 1.33 6.9 -1.03 3.4 0.63 6.6 -1.33 3.9 1.19 47.2 -1.04 8.9 0.50 0.6 0.55 1.2 2.47 3A AAS
COMLAB 6.9 -1.04 <0.2 bld 7.5 0.07 3.1 -0.62 7.9 0.78 3.2 -0.51 52.3 1.57 8.9 0.50 0.6 0.55 0.8 -0.30 AR AAS
COMLAB 7.7 1.03 0.2 -0.92 7.5 0.03 3.3 0.34 7.0 -0.71 3.1 -0.68 57.7 3.00 9.5 1.49 0.5 -0.02 0.8 -0.57 AR MS
COMLAB 7.9 1.49 <1.0 bld 8.0 0.99 3.4 0.63 8.0 0.94 3.5 0.22 50.0 0.39 9.2 1.01 <1.0 bld <1.0 bld AR AAS
COMLAB 6.5 -2.05 0.2 -0.79 6.7 -1.40 3.1 -0.62 7.2 -0.36 3.6 0.46 49.7 0.24 8.2 -0.70 0.4 -1.06 0.8 -0.30 AD AAS
MINELAB 7.3 -0.13 0.2 -0.75 7.1 -0.61 3.5 0.89 7.2 -0.33 3.4 -0.07 >40.0 ald 8.5 -0.26 0.5 -0.34 0.7 -1.26 AR AAS
MINELAB 8.0 1.74 <4.0 bld 8.0 0.99 3.0 -1.03 8.0 0.94 4.0 1.44 48.0 -0.63 9.0 0.67 <4.0 bld <4.0 bld 3A AAS
MINELAB 7.4 0.22 0.1 -1.21 8.0 0.99 3.4 0.63 7.4 -0.03 3.5 0.22 49.5 0.13 8.6 -0.02 0.3 -1.87 0.7 -0.99 AR AAS
MINELAB 7.6 0.73 <1.0 bld 7.6 0.25 3.3 0.22 6.8 -1.01 3.7 0.71 49.8 0.29 8.1 -0.87 <1.0 bld 1.3 3.00 AR AAS
MINELAB <10.0 bld <10.0 bld <10.0 bld <10.0 bld <10.0 bld <10.0 bld 49.0 -0.12 <10.0 bld <10.0 bld <10.0 bld 3A AAS
MINELAB 2.7 -3.00 <0.01 bld 2.6 -3.00 2.9 -1.58 6.9 -0.88 0.1 -3.00 48.5 -0.37 7.7 -1.51 0.1 -3.00 <1.0 bld AR AAS
MINELAB 7.0 -0.86 <5.0 bld 7.2 -0.50 <5.0 bld 6.2 -1.96 <5.0 bld 50.0 0.39 7.8 -1.46 <5.0 bld <5.0 bld AR ES
MINELAB 7.0 -0.79 <3.0 bld 7.0 -0.85 3.0 -1.03 7.0 -0.68 4.0 1.44 50.0 0.39 8.0 -1.05 <3.0 bld <3.0 bld AR AAS
MINELAB 7.2 -0.38 <0.1 bld 6.7 -1.46 2.7 -2.19 8.4 1.60 3.1 -0.76 45.8 -1.75 12.7 3.00 <0.1 -3.00 <0.1 -3.00 AR ICP
MINELAB 7.2 -0.33 <0.45 bld 7.3 -0.23 3.3 0.38 7.7 0.39 3.9 1.22 49.3 0.03 8.5 -0.21 0.5 0.14 0.8 -0.26 AR ES
MINELAB 7.1 -0.53 <1.0 bld 8.2 1.35 4.1 3.00 6.9 -0.84 4.4 2.41 46.0 -1.66 8.9 0.50 <1.0 bld <1.0 bld ICP
MINELAB 9.0 3.00 2.0 3.00 10.0 3.00 5.0 3.00 8.0 0.94 5.0 3.00 46.0 -1.66 9.0 0.67 2.0 3.00 3.0 3.00
MINELAB 7.9 1.49 0.8 1.75 6.8 -1.22 3.2 -0.20 7.4 -0.03 3.6 0.46 48.2 -0.53 9.0 0.67 1.6 3.00 2.0 3.00 AR AAS
MINELAB 8.0 1.66 0.8 1.62 8.5 1.83 3.7 1.84 8.9 2.44 4.1 1.68 52.3 1.55 9.4 1.30 1.3 3.00 2.5 3.00 AR AAS
MINELAB 7.1 -0.43 <1.0 bld 7.5 0.07 3.2 -0.16 7.2 -0.33 3.3 -0.19 49.6 0.21 8.5 -0.17 <1.0 bld nr nr AR MS
MINELAB 7.7 0.98 <1.0 bld 7.5 0.12 3.4 0.43 7.5 0.10 3.4 -0.12 52.0 1.41 8.7 0.19 <1.0 bld 1.0 1.22 AR ES
MINELAB 7.8 1.29 <3.0 bld 7.6 0.18 3.3 0.38 7.3 -0.21 3.2 -0.46 55.3 3.00 11.4 3.00 <3.0 bld <3.0 bld AR ES
MINELAB 6.1 -3.00 0.5 0.48 6.0 -2.69 1.6 -3.00 5.1 -3.00 2.7 -1.73 46.9 -1.20 13.1 3.00 0.7 1.35 1.2 2.47 AR ES
MINELAB 1.0 -3.00 <0.2 bld 4.2 -3.00 1.1 -3.00 4.2 -3.00 <0.2 -3.00 52.8 1.82 10.5 3.00 <0.2 bld <0.2 -3.00 AR ICP
MINELAB 8.6 3.00 0.7 1.29 8.9 2.66 4.5 3.00 8.2 1.31 4.5 2.56 51.4 1.12 9.3 1.12 1.7 3.00 2.7 3.00 AR AAS
MINELAB 7.3 -0.13 <0.5 bld 7.5 0.03 3.3 0.09 7.4 0.00 3.7 0.66 50.3 0.54 8.6 -0.05 <0.5 bld 0.8 -0.57 AR AAS
MINELAB 7.0 -0.79 bld bld 7.0 -0.85 3.0 -1.03 7.0 -0.68 3.0 -1.00 51.0 0.90 8.0 -1.05 bld bld 1.0 1.09 AR AAS
MINELAB 6.8 -1.29 <2.0 bld 7.0 -0.85 3.1 -0.62 7.1 -0.52 3.5 0.22 48.0 -0.63 8.1 -0.87 <2.0 bld 2.0 3.00 3A AAS
MINELAB 7.3 -0.03 <0.5 bld 8.1 1.17 3.1 -0.62 7.2 -0.36 3.9 1.19 48.3 -0.48 8.7 0.16 0.6 0.55 0.9 0.39 AR AAS
MINELAB 9.6 3.00 0.7 1.33 7.6 0.25 4.1 3.00 7.9 0.78 3.0 -1.00 53.0 1.93 10.7 3.00 0.7 1.35 0.8 -0.30 AR AAS
MINELAB 7.2 -0.28 <1.0 bld 7.3 -0.30 3.1 -0.62 7.5 0.13 3.5 0.22 48.0 -0.63 9.0 0.67 <1.0 bld <1.0 bld AR AAS
MINELAB 7.2 -0.33 <5.0 bld 7.5 0.10 <5.0 bld 6.5 -1.43 <5.0 bld 47.0 -1.17 7.8 -1.35 <5.0 bld <5.0 bld AR ICP
MINELAB 7.5 0.50 0.3 -0.28 6.9 -1.03 2.4 -3.00 7.5 0.16 3.7 0.58 50.3 0.53 8.9 0.46 0.4 -1.06 1.7 3.00 AR AAS
Highlighted values are outliers which are assigned a z-score of -3.00 or 3.00 in the standardised values.
Method Reading
Alex Stewart International Argentina SA - Perito Moreno Report Page 13
Silver Assay (Partial Digest) - Mean of Absolute Standardized Values - April 2019 Silver Assay (Partial Digest) - Mean of Standardized Values - April 2019
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Alex Stewart International Argentina SA - Perito Moreno ReportPage 14
Copper (Total Digest) Round Robin - Summary Statistics, Assays, Standardised Values and Graphs - April 2019
Standard Reference GBM319-1 GBM319-2 GBM319-3 GBM319-4 GBM319-5 GBM319-6 GBM319-7 GBM319-8 GBM319-9 GBM319-10
MEAN (ppm) 15759 155 4055 1756 4574 2186 43368 69613 109 122
STDEV (ppm) 646 10 130 76 107 82 1424 2597 8 10
95% CI (ppm) 156 3 30 18 26 19 352 646 2 2
95% CI (%) 0.99% 1.63% 0.75% 1.01% 0.58% 0.88% 0.81% 0.93% 1.89% 2.04% Copper Assay (Total Digest) - Mean of Absolute Standardized Values - April 2019MIN (ppm) 14000 133 3700 1558 4280 2000 40130 62484 87 99
MEDIAN (ppm) 15797 154 4058 1755 4570 2180 43275 69942 106 122
MAX (ppm) 17371 178 4360 1960 4848 2410 47120 75424 130 142
IQR (ppm) 744 11 133 95 127 77 1924 3360 11 13
COUNT 67 62 71 71 64 70 64 63 62 63
Standard Reference GBM319-1 GBM319-2 GBM319-3 GBM319-4 GBM319-5 GBM319-6 GBM319-7 GBM319-8 GBM319-9 GBM319-10
Lab Reference assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score
ASA MENDOZA 15979 0.34 154 -0.13 4054 -0.01 1733 -0.31 4512 -0.58 2082 -1.27 45392 1.42 70476 0.33 118 1.13 129 0.75 4A ES
COMLAB 16300 0.84 145 -1.02 3930 -0.96 1680 -1.00 4360 -2.00 2050 -1.66 44400 0.73 70100 0.19 118 1.13 112 -0.96 4A ICP
COMLAB 15530 -0.35 154 -0.13 3890 -1.27 1776 0.26 4560 -0.13 2160 -0.32 47120 2.64 73440 1.47 191 3.00 123 0.14 4A ICP
COMLAB 15300 -0.71 164 0.85 4050 -0.04 1710 -0.61 4480 -0.88 2220 0.41 44700 0.94 71500 0.73 105 -0.46 127 0.54 4A ICP
COMLAB 15465 -0.45 152 -0.33 3885 -1.31 1761 0.06 4562 -0.12 2155 -0.38 42327 -0.73 69646 0.01 106 -0.34 128 0.65 4A AAS
COMLAB 14250 -2.34 124 -3.00 3303 -3.00 1445 -3.00 3570 -3.00 1662 -3.00 42000 -0.96 66000 -1.39 91 -2.17 79 -3.00 4A ICP
COMLAB 15420 -0.52 169 1.35 4117 0.48 1733 -0.31 4555 -0.18 2172 -0.17 42059 -0.92 68928 -0.26 115 0.76 128 0.65 4A ES
COMLAB 17371 2.50 nr nr nr nr nr nr nr nr nr nr 52130 3.00 88411 3.00 nr nr nr nr 4A ES
COMLAB 16200 0.68 158 0.26 4120 0.50 1875 1.56 4640 0.61 2190 0.05 42200 -0.82 69900 0.11 105 -0.46 124 0.24 4A ES
COMLAB 15850 0.14 160 0.46 4220 1.27 1890 1.76 4570 -0.04 2070 -1.42 42400 -0.68 67400 -0.85 104 -0.58 115 -0.66 4A ES
COMLAB 15650 -0.17 143 -1.22 4250 1.50 1790 0.44 4660 0.80 2310 1.51 42200 -0.82 69000 -0.24 116 0.88 116 -0.56 4A ES
COMLAB 16200 0.68 154 -0.13 4190 1.04 1960 2.68 4500 -0.69 2200 0.17 43300 -0.05 65200 -1.70 103 -0.70 130 0.85 4A ES
COMLAB 15200 -0.87 172 1.64 4220 1.27 1815 0.77 5070 3.00 2260 0.90 42800 -0.40 71500 0.73 115 0.76 132 1.05 4A ICP
COMLAB 16750 1.54 167 1.15 3990 -0.50 1770 0.18 4740 1.54 2180 -0.08 45500 1.50 70800 0.46 103 -0.70 123 0.14 4A ES
COMLAB 16600 1.30 152 -0.33 4200 1.12 1880 1.63 4760 1.73 2360 2.12 44200 0.58 71500 0.73 100 -1.07 99 -2.26 4A ES
COMLAB >10000 ald 158 0.26 3970 -0.66 1680 -1.00 4440 -1.25 2140 -0.56 >10000 ald >10000 ald 106 -0.34 124 0.24 4A ES
COMLAB >10000 ald 154 -0.13 4182 0.98 1732 -0.32 4570 -0.04 2200 0.17 >10000 ald >10000 ald 107 -0.22 117 -0.46 4A ES
COMLAB 16050 0.45 165 0.95 4130 0.58 1780 0.31 4590 0.15 2340 1.88 42900 -0.33 67000 -1.01 99 -1.19 105 -1.66 4A ES
COMLAB >10000 ald 160 0.46 4190 1.04 1640 -1.53 4530 -0.41 2300 1.39 >10000 ald >10000 ald 112 0.39 121 -0.06 4A ES
COMLAB 16050 0.45 192 3.00 4360 2.35 1800 0.58 4910 3.00 2280 1.14 42800 -0.40 67800 -0.70 111 0.27 126 0.44 4A ES
COMLAB 15700 -0.09 159 0.36 4050 -0.04 1755 -0.02 4650 0.70 2180 -0.08 43300 -0.05 70600 0.38 105 -0.52 122 0.04 4A ES,MS
COMLAB 15879 0.19 218 3.00 4094 0.30 1834 1.03 4406 -1.57 2220 0.41 41950 -1.00 63790 -2.24 159 3.00 158 3.00 5A ES
COMLAB 16310 0.85 159 0.34 4046 -0.07 1644 -1.47 4612 0.35 2177 -0.11 42740 -0.44 66180 -1.32 108 -0.13 132 1.08 4A ICP
COMLAB 15200 -0.87 157 0.16 3830 -1.73 1640 -1.53 4480 -0.88 2180 -0.08 41800 -1.10 68600 -0.39 105 -0.46 131 0.95 4A ES
COMLAB 16443 1.06 173 1.74 4141 0.66 1813 0.75 4594 0.18 2251 0.79 44220 0.60 71320 0.66 123 1.74 152 3.00 4A AAS
COMLAB nr nr 169 1.35 4094 0.30 1773 0.22 4635 0.56 2189 0.03 43200 -0.12 71463 0.71 121 1.49 140 1.85 4A AAS
COMLAB 16170 0.64 168 1.25 4102 0.36 1837 1.06 4639 0.60 2410 2.73 44202 0.59 71833 0.86 141 3.00 138 1.65 4A AAS
COMLAB 16107 0.54 178 2.24 4230 1.35 1768 0.16 4600 0.24 2189 0.03 44340 0.68 75408 2.23 126 2.10 142 2.05 4A AAS
COMLAB 15400 -0.56 144 -1.12 4120 0.50 1740 -0.21 4550 -0.23 2180 -0.08 43100 -0.19 67100 -0.97 112 0.39 126 0.44 4A ES
COMLAB 15970 0.33 172 1.64 3954 -0.78 1692 -0.85 4334 -2.24 2085 -1.23 43630 0.18 68370 -0.48 115 0.76 127 0.54 4A ES
COMLAB 16180 0.65 144 -1.12 4004 -0.39 1756 0.00 4486 -0.82 2212 0.31 43880 0.36 70840 0.47 108 -0.09 112 -0.96 4A ES
COMLAB 15668 -0.14 151 -0.43 4126 0.55 1814 0.76 4622 0.44 2226 0.48 43645 0.19 70433 0.32 110 0.15 118 -0.36 4A AAS
COMLAB 15500 -0.40 160 0.46 4030 -0.19 1800 0.58 4640 0.61 2160 -0.32 41800 -1.10 67400 -0.85 423 3.00 130 0.85 4A ICP
COMLAB 16000 0.37 137 -1.81 4160 0.81 1910 2.02 4740 1.54 2170 -0.20 41900 -1.03 73000 1.30 87 -2.66 160 3.00 4A ES
COMLAB 16499 1.15 154 -0.13 4032 -0.18 1789 0.43 4664 0.83 2224 0.46 43984 0.43 70631 0.39 105 -0.41 118 -0.34 4A ES
COMLAB 15862 0.16 172 1.64 4095 0.31 1806 0.66 4619 0.42 2211 0.30 42843 -0.37 69876 0.10 111 0.27 122 0.04 4A MS,AAS,TITR
COMLAB 15150 -0.94 151 -0.43 4022 -0.26 1729 -0.36 4473 -0.95 2151 -0.43 >20000 ald >20000 ald 106 -0.34 114 -0.76 4A ES
COMLAB 14600 -1.79 151 -0.43 4070 0.11 1680 -1.00 4540 -0.32 2110 -0.93 42800 -0.40 68800 -0.31 136 3.00 126 0.44 4A MS
COMLAB 15604 -0.24 147 -0.83 3979 -0.59 1755 -0.02 4565 -0.09 2244 0.70 43850 0.34 69330 -0.11 104 -0.58 116 -0.56 4A ES
COMLAB 15400 -0.56 137 -1.81 4037 -0.14 1693 -0.83 4535 -0.37 2228 0.51 44200 0.58 71400 0.69 111 0.27 108 -1.36 4A ES
COMLAB 15800 0.06 147 -0.83 4090 0.27 1780 0.31 4540 -0.32 2200 0.17 45300 1.36 70900 0.50 108 -0.09 140 1.85 4A ES
COMLAB 16156 0.62 154 -0.13 4052 -0.02 1749 -0.09 4575 0.01 2280 1.14 44440 0.75 72485 1.11 106 -0.34 119 -0.26 4A ICP
COMLAB 15797 0.06 141 -1.45 4092 0.28 1827 0.93 4549 -0.24 2299 1.38 44048 0.48 68664 -0.37 101 -0.94 108 -1.36 4A ES
COMLAB 14603 -1.79 133 -2.17 3768 -2.21 1687 -0.92 4148 -3.00 1927 -3.00 40130 -2.27 62484 -2.75 106 -0.35 107 -1.46 4A
COMLAB 15724 -0.05 140 -1.52 3980 -0.58 1781 0.33 4591 0.15 2181 -0.06 42870 -0.35 69942 0.13 102 -0.83 106 -1.56 4A ES
COMLAB 15718 -0.06 140 -1.52 3930 -0.96 1703 -0.70 4568 -0.06 2092 -1.15 42768 -0.42 67410 -0.85 104 -0.58 99 -2.26 4A ICP
COMLAB 16000 0.37 150 -0.53 4242 1.44 1746 -0.13 4552 -0.21 2148 -0.47 44500 0.80 70300 0.26 100 -1.07 111 -1.06 4A ICP
COMLAB 15200 -0.87 146 -0.92 3880 -1.35 1630 -1.66 4280 -2.75 2020 -2.03 42700 -0.47 69000 -0.24 120 1.37 120 -0.16 4A AAS
COMLAB >10000 ald 149 -0.63 3960 -0.73 1753 -0.04 4605 0.29 2162 -0.30 >10000 ald >10000 ald 100 -1.07 121 -0.06 4A ES
COMLAB 14000 -2.72 500 3.00 3700 -2.74 1900 1.89 4200 -3.00 2000 -2.27 36900 -3.00 59000 -3.00 700 3.00 <500 bld FUS
COMLAB 15419 -0.53 151 -0.43 4097 0.32 1744 -0.16 4595 0.19 2184 -0.03 42100 -0.89 68610 -0.39 104 -0.58 115 -0.66 4A ES
COMLAB 15305 -0.70 146 -0.92 4012 -0.33 1781 0.33 4465 -1.02 2132 -0.66 45499 1.50 73265 1.41 113 0.52 121 -0.06 4A ES
COMLAB 15493 -0.41 156 0.04 4058 0.03 1662 -1.24 4616 0.39 2187 0.00 42327 -0.73 69972 0.14 105 -0.41 118 -0.39 FUS,4A ICP
COMLAB 15427 -0.51 154 -0.14 3762 -2.26 1748 -0.11 4578 0.03 2156 -0.37 43739 0.26 >50000 ald 109 -0.03 121 -0.05 4A ICP
COMLAB 14817 -1.46 163 0.74 3890 -1.27 1707 -0.65 4545 -0.27 2162 -0.29 40600 -1.94 67750 -0.72 106 -0.35 115 -0.67 4A AAS
COMLAB 15700 -0.09 161 0.56 4009 -0.36 1680 -1.00 4452 -1.14 2096 -1.10 42200 -0.82 66700 -1.12 117 1.00 122 0.04 FUS ICP
COMLAB 15528 -0.36 148 -0.73 4012 -0.33 1784 0.37 4576 0.01 2122 -0.78 42302 -0.75 67829 -0.69 111 0.27 132 1.05 4A AAS
COMLAB nr nr 164 0.85 4120 0.50 1710 -0.61 4450 -1.16 2170 -0.20 nr nr nr nr 106 -0.34 119 -0.26 4A AAS
COMLAB 15478 -0.43 154 -0.16 3724 -2.55 1654 -1.35 4251 -3.00 2080 -1.30 40997 -1.67 66471 -1.21 103 -0.71 112 -0.94 4A MS
COMLAB 15500 -0.40 165 0.95 4070 0.11 1850 1.23 4450 -1.16 2350 2.00 41800 -1.10 67700 -0.74 118 1.13 122 0.04 4A ES
COMLAB 15988 0.36 159 0.32 4001 -0.42 1716 -0.53 4585 0.10 2148 -0.46 41996 -0.96 66938 -1.03 106 -0.28 128 0.68 4A ES
COMLAB 16670 1.41 192 3.00 3958 -0.75 1681 -0.99 4250 -3.00 2207 0.26 46400 2.13 71800 0.84 120 1.37 130 0.85 4A AAS,ES
COMLAB >10000 ald 151 -0.43 4044 -0.09 1558 -2.61 4549 -0.24 2149 -0.45 >10000 ald >10000 ald 100 -1.09 120 -0.16 4A ES
COMLAB 16035 0.43 160 0.46 4007 -0.37 1672 -1.11 4829 2.37 2313 1.55 43760 0.28 70950 0.52 110 0.15 126 0.44 4A ES
COMLAB 15263 -0.77 186 3.00 4265 1.62 1713 -0.57 4484 -0.84 2155 -0.38 41640 -1.21 68206 -0.54 nr nr nr nr 4A AAS
COMLAB 17370 2.50 177 2.14 4103 0.37 1813 0.75 4848 2.55 2279 1.13 46701 2.34 75424 2.24 120 1.37 131 0.95 4A MS
COMLAB 15807 0.07 160 0.46 4206 1.16 1790 0.44 4689 1.07 2205 0.23 45300 1.36 70600 0.38 103 -0.70 119 -0.26 4A ES
MINELAB 16200 0.68 300 3.00 4200 1.12 1900 1.89 4700 1.17 2300 1.39 44100 0.51 72900 1.27 100 -1.07 100 -2.16 FUS XRF
MINELAB 14430 -2.06 222 3.00 4063 0.06 1650 -1.39 4242 -3.00 2048 -1.69 35765 -3.00 74936 2.05 160 3.00 240 3.00 4A ES
MINELAB 17070 2.03 100 -3.00 4000 -0.42 1800 0.58 4500 -0.69 2100 -1.05 45420 1.44 79170 3.00 200 3.00 200 3.00 4A AAS
MINELAB 16269 0.79 157 0.16 4206 1.16 1776 0.26 4716 1.32 2228 0.51 43323 -0.03 70510 0.35 105 -0.46 127 0.54 3A,MICR ES
MINELAB 15845 0.13 152 -0.33 4090 0.27 1801 0.58 4759 1.72 2144 -0.51 43250 -0.08 70700 0.42 130 2.59 125 0.36 4A AAS
MINELAB 15141 -0.96 <200 bld 4105 0.38 1710 -0.60 4487 -0.82 2175 -0.14 43800 0.30 65823 -1.46 <200 bld <200 bld FUS ICP
MINELAB 16266 0.79 155 0.00 4171 0.89 1712 -0.59 4668 0.87 2070 -1.42 43829 0.32 70761 0.44 126 2.14 142 2.02 4A AAS
Highlighted values are outliers which are assigned a z-score of -3.00 or 3.00 in the standardised values.
Method Reading
Alex Stewart International Argentina SA - Perito Moreno Report Page 15
Copper Assay (Total Digest) - Mean of Absolute Standardized Values - April 2019 Copper Assay (Total Digest) - Mean of Standardized Values - April 2019
Standard Deviations Standard Deviations
ASA MENDOZA
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
-3 -2 -1 0 1 2 30 1 2
ASA MENDOZA
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
Alex Stewart International Argentina SA - Perito Moreno ReportPage 16
Copper (Partial Digest) Round Robin - Summary Statistics, Assays, Standardised Values and Graphs - April 2019
Standard Reference GBM319-1 GBM319-2 GBM319-3 GBM319-4 GBM319-5 GBM319-6 GBM319-7 GBM319-8 GBM319-9 GBM319-10
MEAN (ppm) 15899 153 4079 1765 4602 2199 43103 69738 107 116
STDEV (ppm) 561 13 145 75 165 81 1656 2545 7 9
95% CI (ppm) 134 3 32 17 37 18 403 639 2 2
95% CI (%) 0.85% 1.93% 0.79% 0.94% 0.79% 0.82% 0.93% 0.92% 1.51% 1.89% Copper Assay (Partial Digest) - Mean of Absolute Standardized Values - April 2019MIN (ppm) 14603 119 3769 1559 4306 2030 40160 62819 90 91
MEDIAN (ppm) 15812 152 4073 1770 4569 2206 42791 69440 107 116
MAX (ppm) 17151 188 4406 1934 5060 2381 47620 76452 124 140
IQR (ppm) 675 17 163 100 212 111 1689 3145 6 12
COUNT 68 72 79 79 79 77 66 62 69 71
Standard Reference GBM319-1 GBM319-2 GBM319-3 GBM319-4 GBM319-5 GBM319-6 GBM319-7 GBM319-8 GBM319-9 GBM319-10
Lab Reference assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score
COMLAB >10000 ald 160 0.55 4270 1.32 1930 2.20 4830 1.39 2250 0.63 >10000 ald >10000 ald 108 0.13 110 -0.67 AR ICP
COMLAB >10000 ald 152 -0.08 4190 0.77 1750 -0.20 4590 -0.07 2220 0.26 >10000 ald >10000 ald 106 -0.16 114 -0.25 AR ICP
COMLAB 15979 0.14 148 -0.40 4039 -0.28 1797 0.43 4676 0.45 2204 0.06 42270 -0.50 69251 -0.19 108 0.13 117 0.07 AR AAS
COMLAB nr nr 161 0.63 4177 0.68 1816 0.68 4761 0.97 2269 0.87 nr nr nr nr 132 3.00 114 -0.25 AR ES
COMLAB 15700 -0.35 144 -0.71 4110 0.21 1770 0.07 4390 -1.29 2250 0.63 43200 0.06 70300 0.22 105 -0.31 115 -0.14 AR ES
COMLAB 15950 0.09 165 0.94 4050 -0.20 1765 0.00 4540 -0.37 2030 -2.10 42700 -0.24 67600 -0.84 104 -0.45 118 0.18 AR ES
COMLAB 15750 -0.26 162 0.71 4190 0.77 1890 1.67 4880 1.69 2240 0.51 42100 -0.61 70100 0.14 112 0.72 130 1.45 AR ICP
COMLAB 16200 0.54 143 -0.79 4000 -0.55 1820 0.73 4470 -0.80 2150 -0.61 44400 0.78 69000 -0.29 106 -0.16 114 -0.25 AR ES
COMLAB >10000 ald 138 -1.18 3909 -1.17 1701 -0.85 4445 -0.95 2113 -1.07 >10000 ald >10000 ald 103 -0.60 113 -0.35 AR ES
COMLAB 15900 0.00 158 0.39 4030 -0.34 1800 0.47 4810 1.27 2220 0.26 43200 0.06 68400 -0.53 107 -0.01 119 0.28 AR ES
COMLAB 15650 -0.44 152 -0.08 3980 -0.68 1710 -0.73 4500 -0.62 2150 -0.61 42600 -0.30 69600 -0.05 105 -0.31 120 0.39 AR ES
COMLAB 15500 -0.71 157 0.31 4130 0.35 1780 0.20 4530 -0.44 2280 1.01 42700 -0.24 68200 -0.60 107 -0.01 118 0.18 AR AAS
COMLAB 15870 -0.05 163 0.79 4160 0.56 1860 1.27 4630 0.17 2300 1.26 42350 -0.45 69410 -0.13 109 0.28 116 -0.03 AR AAS
COMLAB 15950 0.09 162 0.71 4110 0.21 1680 -1.13 4490 -0.68 2230 0.39 40870 -1.35 67200 -1.00 112 0.72 119 0.28 AR ES,AAS
COMLAB 15800 -0.18 154 0.04 3880 -1.37 1690 -1.00 4410 -1.16 2070 -1.60 42600 -0.30 69100 -0.25 106 -0.23 114 -0.25 AR ES,MS
COMLAB 15214 -1.22 197 3.00 4204 0.86 1849 1.12 4654 0.32 2245 0.57 >20000 ald >20000 ald 138 3.00 118 0.15 AR ES
COMLAB 15190 -1.26 150 -0.21 4068 -0.07 1791 0.35 4445 -0.95 2158 -0.50 42180 -0.56 67070 -1.05 112 0.71 121 0.46 AR ICP
COMLAB 217 -3.00 211 3.00 4110 0.21 1831 0.88 4696 0.57 2253 0.67 43498 0.24 nr nr 268 3.00 156 3.00 3A AAS
COMLAB >10000 ald 153 0.00 4021 -0.40 1732 -0.44 4561 -0.25 2145 -0.67 >10000 ald >10000 ald 103 -0.60 129 1.35 AR ES
COMLAB 15880 -0.03 145 -0.63 3998 -0.56 1737 -0.37 4404 -1.20 2098 -1.25 42140 -0.58 68160 -0.62 110 0.43 100 -1.74 AR ES
COMLAB 16350 0.80 170 1.34 4403 2.24 1814 0.65 4575 -0.16 2355 1.94 43840 0.44 69470 -0.11 120 1.90 128 1.24 AR ICP
COMLAB 16089 0.34 163 0.79 4264 1.28 1846 1.08 4654 0.32 2215 0.20 41607 -0.90 69731 0.00 109 0.28 117 0.07 AR AAS
COMLAB 16379 0.86 144 -0.71 4172 0.64 1721 -0.59 4477 -0.76 2169 -0.37 42276 -0.50 62819 -2.72 106 -0.16 111 -0.57 AR ES
COMLAB 15712 -0.33 <100 -3.00 4213 0.92 1768 0.04 4652 0.31 2289 1.12 43990 0.54 >50000 ald <100 bld <100 bld AR ES
COMLAB 15327 -1.02 150 -0.23 4138 0.41 1741 -0.32 4532 -0.43 2152 -0.58 >20000 ald >20000 ald 106 -0.16 115 -0.15 AR ES
COMLAB 15789 -0.20 137 -1.25 4055 -0.17 1702 -0.84 4581 -0.13 2185 -0.17 42557 -0.33 68257 -0.58 95 -1.72 101 -1.62 AR ES
COMLAB 15401 -0.89 157 0.31 4116 0.25 1673 -1.23 4779 1.08 2263 0.80 40596 -1.51 69010 -0.29 105 -0.31 104 -1.31 AR ES
COMLAB >10000 ald 136 -1.37 3959 -0.83 1721 -0.58 4367 -1.43 2124 -0.93 >10000 ald >10000 ald 101 -0.90 110 -0.73 AR MS
COMLAB nr nr 119 -2.68 nr nr nr nr nr nr nr nr nr nr nr nr 93 -2.14 121 0.50 3A ICP
COMLAB 15372 -0.94 149 -0.32 4060 -0.13 1725 -0.53 4551 -0.31 2181 -0.22 42055 -0.63 68237 -0.59 103 -0.60 113 -0.35 AR ES
COMLAB 16993 1.95 138 -1.18 4259 1.24 1778 0.17 4717 0.70 2197 -0.02 44072 0.58 72349 1.03 108 0.13 118 0.18 AR AAS
COMLAB 16683 1.40 148 -0.40 3889 -1.31 1698 -0.89 4481 -0.73 2247 0.60 40160 -1.78 71880 0.84 90 -2.51 91 -2.69 AR AAS
COMLAB 15711 -0.33 162 0.71 4092 0.09 1782 0.23 4617 0.09 2223 0.30 43610 0.31 70154 0.16 110 0.43 119 0.28 AR ES
COMLAB 16014 0.21 159 0.47 4144 0.45 1791 0.35 4689 0.53 2205 0.08 40918 -1.32 67703 -0.80 91 -2.36 101 -1.63 3A ICP
COMLAB 15225 -1.20 143 -0.81 3783 -2.05 1618 -1.96 4603 0.01 2139 -0.74 42252 -0.51 >50000 ald 108 0.07 124 0.86 AR ICP
COMLAB >10000 ald 148 -0.40 4038 -0.28 1731 -0.45 4423 -1.09 2128 -0.88 >10000 ald >10000 ald 109 0.28 106 -1.10 AR ES
COMLAB 15609 -0.52 132 -1.69 3897 -1.26 1712 -0.71 4461 -0.86 2263 0.79 41145 -1.18 61496 -3.00 108 0.13 120 0.43 AR AAS
COMLAB 15734 -0.29 146 -0.57 3928 -1.05 1688 -1.02 4359 -1.47 2116 -1.03 41939 -0.70 69311 -0.17 101 -0.84 111 -0.57 3A AAS
COMLAB >8000 ald 145 -0.63 4035 -0.30 1720 -0.60 4551 -0.31 2051 -1.84 >8000 ald >8000 ald 105 -0.31 106 -1.10 AR AAS
COMLAB 15600 -0.53 155 0.16 4200 0.83 1550 -2.86 4560 -0.25 2160 -0.48 41300 -1.09 66000 -1.47 119 1.75 118 0.18 AR ES
COMLAB 15400 -0.89 150 -0.24 3910 -1.17 1770 0.07 4520 -0.50 2280 1.01 41400 -1.03 67900 -0.72 108 0.13 120 0.39 AR MS
COMLAB 15700 -0.35 141 -0.95 4120 0.28 1790 0.33 4580 -0.13 2140 -0.73 40800 -1.39 67600 -0.84 96 -1.63 105 -1.20 AR ES
COMLAB 16074 0.31 144 -0.69 4042 -0.25 1733 -0.43 4501 -0.61 2278 0.98 42194 -0.55 68231 -0.59 108 0.12 112 -0.42 AR ES
COMLAB 16770 1.55 176 1.81 3922 -1.08 1704 -0.81 4667 0.40 2104 -1.18 45910 1.69 70519 0.31 113 0.87 126 1.03 3A AAS
COMLAB 15604 -0.52 166 1.02 4237 1.09 1864 1.32 4926 1.97 2354 1.93 43193 0.05 67403 -0.92 117 1.46 132 1.67 AR ES
COMLAB 15489 -0.73 162 0.68 4406 2.26 1870 1.40 4902 1.82 2346 1.83 43000 -0.06 28 -3.00 124 2.47 69589 3.00 3A AAS
COMLAB 16208 0.55 177 1.89 4302 1.54 1934 2.25 4877 1.67 2267 0.85 43200 0.06 70300 0.22 110 0.43 129 1.35 3A ICP
COMLAB 14603 -2.31 143 -0.79 3843 -1.63 1659 -1.41 4553 -0.30 2096 -1.28 41703 -0.85 67544 -0.86 97 -1.48 104 -1.31 3A AAS
COMLAB nr nr 171 1.42 4199 0.83 1717 -0.64 4464 -0.84 2115 -1.04 nr nr nr nr 108 0.13 119 0.28 AR AAS
COMLAB 17103 2.15 160 0.55 4391 2.15 1797 0.43 4814 1.29 2236 0.46 46679 2.16 75090 2.10 109 0.28 130 1.45 AR MS
COMLAB 16738 1.50 162 0.71 4164 0.59 1869 1.39 4657 0.34 2307 1.34 43448 0.21 67051 -1.06 115 1.16 129 1.35 AR AAS
COMLAB 15690 -0.37 150 -0.24 4123 0.30 1673 -1.23 4709 0.65 2128 -0.88 45030 1.16 71840 0.83 107 -0.01 115 -0.14 AD AAS
MINELAB 15650 -0.44 160 0.55 4040 -0.27 1790 0.33 4560 -0.25 2210 0.14 42400 -0.42 68300 -0.57 120 1.90 140 2.52 3A AAS
MINELAB 16168 0.48 bld bld 4224 1.00 1696 -0.92 4696 0.57 2171 -0.35 43641 0.32 72093 0.93 bld bld bld bld AR AAS
MINELAB 15823 -0.13 205 3.00 4073 -0.04 1753 -0.16 4521 -0.49 2250 0.63 43424 0.19 71273 0.60 112 0.72 114 -0.25 3A AAS
MINELAB 16649 1.34 152 -0.08 4009 -0.48 1740 -0.33 4446 -0.95 2083 -1.44 45543 1.47 73837 1.61 107 -0.01 113 -0.35 AR AAS
MINELAB 16650 1.34 160 0.55 4004 -0.52 1685 -1.07 4508 -0.57 2119 -0.99 41560 -0.93 65580 -1.63 111 0.57 128 1.24 AR ES
MINELAB 15500 -0.71 <500 bld 4100 0.14 1800 0.47 4500 -0.62 2200 0.01 41350 -1.06 68200 -0.60 <500 bld <500 bld 3A AAS
MINELAB 15409 -0.87 213 3.00 3879 -1.38 1648 -1.56 4512 -0.54 2210 0.14 65205 3.00 68480 -0.49 151 3.00 124 0.82 3A AAS
MINELAB 15901 0.00 202 3.00 4319 1.66 1841 1.01 4813 1.29 2316 1.45 43614 0.31 70727 0.39 116 1.31 78 -3.00 3A ES
MINELAB 16887 1.76 154 0.08 4303 1.55 1880 1.53 4924 1.96 2251 0.65 45573 1.49 71329 0.63 105 -0.31 125 0.92 AR ES
MINELAB 17151 2.23 140 -1.06 3783 -2.04 1642 -1.63 4321 -1.71 2047 -1.89 44188 0.66 72923 1.25 109 0.33 123 0.73 3A ES
MINELAB 15463 -0.78 155 0.18 3992 -0.60 1747 -0.24 4587 -0.09 2183 -0.20 37650 -3.00 54598 -3.00 111 0.52 126 1.06 AR AAS
MINELAB 16155 0.46 160 0.55 4010 -0.48 1900 1.80 4665 0.39 2105 -1.17 43995 0.54 74670 1.94 130 3.00 145 3.00 AR ES
MINELAB 16206 0.55 142 -0.85 4051 -0.19 1721 -0.59 4830 1.39 1907 -3.00 43755 0.39 70843 0.43 73 -3.00 82 -3.00 ICP
MINELAB 14640 -2.24 188 2.76 4110 0.21 1829 0.85 4410 -1.16 2225 0.32 42800 -0.18 67900 -0.72 132 3.00 154 3.00
MINELAB 16836 1.67 155 0.19 4094 0.10 1815 0.67 4710 0.66 2346 1.83 45540 1.47 76452 2.64 103 -0.60 106 -1.12 AR AAS
MINELAB 15055 -1.50 <500 bld 3949 -0.90 1820 0.73 6426 3.00 2210 0.14 43812 0.43 65830 -1.54 <500 bld <500 bld AR AAS
MINELAB 18980 3.00 150 -0.23 4924 3.00 2182 3.00 5548 3.00 2596 3.00 49954 3.00 82137 3.00 120 1.83 146 3.00 AR ES
MINELAB 19328 3.00 132 -1.67 4376 2.05 1772 0.10 4959 2.17 2331 1.64 47090 2.41 81790 3.00 101 -0.95 106 -1.10 AR MS
MINELAB 16112 0.38 133 -1.60 4159 0.55 1807 0.56 4569 -0.20 2189 -0.12 48732 3.00 79938 3.00 94 -1.91 102 -1.56 AR ES
MINELAB 15722 -0.31 137 -1.23 4125 0.32 1800 0.47 4629 0.17 2271 0.90 42523 -0.35 69061 -0.27 106 -0.14 106 -1.09 AR ES
MINELAB 15542 -0.64 196 3.00 4006 -0.50 1772 0.09 4569 -0.20 2183 -0.20 41529 -0.95 67332 -0.95 157 3.00 133 1.77 AR ES
MINELAB 14905 -1.77 196 3.00 3977 -0.71 1731 -0.46 4490 -0.68 2206 0.08 41417 -1.02 73716 1.56 135 3.00 127 1.17 AR ICP
MINELAB 15988 0.16 180 2.13 3769 -2.14 1909 1.92 4316 -1.74 2381 2.26 43039 -0.04 70218 0.19 104 -0.45 104 -1.31 AR AAS
MINELAB 16269 0.66 139 -1.11 4095 0.11 1787 0.29 4649 0.29 2215 0.20 43700 0.36 70600 0.34 97 -1.48 109 -0.78 AR AAS
MINELAB 15570 -0.59 176 1.81 4010 -0.48 1747 -0.24 4503 -0.60 2131 -0.84 44746 0.99 72824 1.21 114 1.02 115 -0.14 AR AAS
MINELAB 17777 3.00 159 0.49 4524 3.00 2042 3.00 5060 2.78 2546 3.00 46852 2.26 75337 2.20 107 0.02 108 -0.94 3A AAS
MINELAB 16343 0.79 146 -0.55 3955 -0.86 1676 -1.19 4306 -1.80 2101 -1.22 40287 -1.70 71429 0.66 104 -0.45 146 3.00 AR AAS
MINELAB 16751 1.52 144 -0.71 4258 1.24 1844 1.05 4788 1.13 2148 -0.63 43760 0.40 71600 0.73 228 3.00 116 -0.03 3A AAS
MINELAB 16349 0.80 165 0.94 3812 -1.84 1638 -1.69 4505 -0.59 2048 -1.87 45126 1.22 69500 -0.09 115 1.16 117 0.07 AR AAS
MINELAB 15764 -0.24 150 -0.24 4092 0.09 1773 0.11 4730 0.78 2214 0.19 42770 -0.20 70150 0.16 102 -0.73 112 -0.46 AR AAS
MINELAB 15720 -0.32 154 0.08 4040 -0.27 1559 -2.74 4720 0.72 1884 -3.00 47620 2.73 66145 -1.41 110 0.43 119 0.28 AR AAS
MINELAB 15333 -1.01 172 1.51 4116 0.25 1770 0.06 4431 -1.04 2232 0.41 42783 -0.19 71636 0.75 119 1.81 130 1.49 AR AAS
Highlighted values are outliers which are assigned a z-score of -3.00 or 3.00 in the standardised values.
Method Reading
Alex Stewart International Argentina SA - Perito Moreno Report Page 17
Copper Assay (Partial Digest) - Mean of Absolute Standardized Values - April 2019 Copper Assay (Partial Digest) - Mean of Standardized Values - April 2019
Standard Deviations Standard Deviations
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
-3 -2 -1 0 1 2 30 1 2
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
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MINELAB
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Alex Stewart International Argentina SA - Perito Moreno ReportPage 18
Lead (Total Digest) Round Robin - Summary Statistics, Assays, Standardised Values and Graphs - April 2019
Standard Reference GBM319-1 GBM319-2 GBM319-3 GBM319-4 GBM319-5 GBM319-6 GBM319-7 GBM319-8 GBM319-9 GBM319-10
MEAN (ppm) 61 101 1116 505 4022 1887 61 5 21 75
STDEV (ppm) 8 10 64 35 161 93 4 2 4 7
95% CI (ppm) 2 3 16 9 41 23 1 1 1 2
95% CI (%) 3.28% 2.52% 1.41% 1.69% 1.02% 1.21% 2.07% 14.21% 4.79% 2.33% Lead Assay (Total Digest) - Mean of Absolute Standardized Values - April 2019MIN (ppm) 41 79 972 413 3602 1717 49 2 11 60
MEDIAN (ppm) 61 98 1120 502 4027 1880 61 5 21 75
MAX (ppm) 82 126 1245 584 4340 2110 70 11 30 93
IQR (ppm) 8 12 85 38 241 130 6 2 5 8
COUNT 58 59 65 65 60 65 50 35 53 58
Standard Reference GBM319-1 GBM319-2 GBM319-3 GBM319-4 GBM319-5 GBM319-6 GBM319-7 GBM319-8 GBM319-9 GBM319-10
Lab Reference assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score
ASA MENDOZA 57 -0.49 92 -0.88 1070 -0.72 494 -0.30 4088 0.41 1862 -0.27 56 -1.08 3 -1.00 15 -1.64 67 -1.19 4A ES
COMLAB 56 -0.62 97 -0.38 1140 0.38 490 -0.42 3880 -0.88 2050 1.74 62 0.25 3 -1.00 18 -0.83 74 -0.15 4A ICP
COMLAB 47 -1.79 90 -1.09 972 -2.24 509 0.13 3860 -1.01 1810 -0.83 57 -0.86 10 2.18 18 -0.83 63 -1.79 4A ICP
COMLAB 47 -1.79 98 -0.28 1140 0.38 550 1.30 4080 0.36 1870 -0.19 55 -1.31 <3 bld 16 -1.37 67 -1.19 4A ICP
COMLAB 64 0.43 99 -0.17 1064 -0.81 485 -0.56 4025 0.02 1824 -0.68 61 0.03 <5 bld 19 -0.56 74 -0.15 4A AAS
COMLAB 41 -2.57 64 -3.00 764 -3.00 350 -3.00 2439 -3.00 1228 -3.00 24 -3.00 <5 bld 9 -3.00 25 -3.00 4A ICP
COMLAB 60 -0.09 115 1.45 1150 0.53 512 0.21 4018 -0.02 1880 -0.08 18 -3.00 <10 bld 26 1.32 84 1.34 4A ES
COMLAB 62 0.17 110 0.94 1140 0.38 501 -0.10 4190 1.05 1985 1.04 63 0.47 2 -1.46 21 -0.02 78 0.45 4A ES
COMLAB 61 0.04 98 -0.28 1210 1.47 532 0.79 4060 0.24 1770 -1.26 62 0.25 3 -1.00 25 1.06 79 0.59 4A ES
COMLAB 65 0.56 94 -0.68 1190 1.16 470 -0.99 4290 1.67 2020 1.42 60 -0.20 5 -0.09 19 -0.56 80 0.74 4A ES
COMLAB 71 1.34 103 0.23 1120 0.06 539 0.99 4050 0.18 1870 -0.19 59 -0.42 5 -0.09 22 0.25 77 0.30 4A ES
COMLAB 70 1.21 107 0.64 1200 1.31 547 1.22 3930 -0.57 1850 -0.40 64 0.69 6 0.36 21 -0.02 79 0.59 4A ICP
COMLAB 62 0.17 110 0.94 1090 -0.40 508 0.10 4200 1.11 1950 0.67 59 -0.42 2 -1.46 19 -0.56 66 -1.34 4A ES
COMLAB 65 0.56 100 -0.07 1245 2.02 550 1.30 4183 1.00 2003 1.24 80 3.00 <5 bld 25 1.06 85 1.49 4A ES
COMLAB 54 -0.88 99 -0.17 1160 0.69 567 1.79 3870 -0.94 1750 -1.47 58 -0.64 5 -0.09 18 -0.83 71 -0.60 4A ES
COMLAB 59 -0.22 93 -0.78 1109 -0.11 483 -0.62 3905 -0.73 1770 -1.26 58 -0.64 3 -1.00 17 -1.10 69 -0.89 4A ES
COMLAB 58 -0.36 107 0.64 1060 -0.87 487 -0.50 3840 -1.13 2050 1.74 61 0.03 <2 bld 11 -2.71 65 -1.49 4A ES
COMLAB 68 0.95 104 0.33 1245 2.02 475 -0.85 4090 0.43 1960 0.78 63 0.47 9 1.73 26 1.32 75 0.00 4A ES
COMLAB 71 1.34 126 2.56 1190 1.16 526 0.62 4340 1.98 2110 2.38 63 0.47 12 3.00 26 1.32 72 -0.45 4A ES
COMLAB 65 0.53 105 0.38 1160 0.69 532 0.79 4060 0.24 1905 0.19 62 0.16 nr nr 20 -0.18 72 -0.49 4A MS
COMLAB 60 -0.08 96 -0.50 995 -1.88 498 -0.20 4158 0.85 1891 0.03 64 0.80 5 -0.31 21 0.05 79 0.59 4A ICP
COMLAB 59 -0.22 110 0.94 1100 -0.25 515 0.30 4090 0.43 1920 0.35 54 -1.53 4 -0.55 20 -0.29 75 0.00 4A MS
COMLAB nr nr nr nr 1141 0.39 nr nr 4334 1.94 1898 0.11 nr nr nr nr nr nr nr nr 4A
COMLAB nr nr 97 -0.41 1127 0.17 529 0.70 4121 0.62 1852 -0.38 38 -3.00 nr nr nr nr nr nr 4A AAS
COMLAB 48 -1.66 112 1.14 1152 0.56 496 -0.25 3941 -0.50 1873 -0.16 46 -3.00 bld bld bld bld 82 1.05 4A AAS
COMLAB 65 0.56 96 -0.48 1220 1.63 517 0.36 4290 1.67 1950 0.67 64 0.58 3 -1.00 21 -0.02 77 0.30 4A MS
COMLAB 67 0.82 122 2.16 1139 0.36 510 0.16 4535 3.00 1982 1.01 75 3.00 <5 bld 21 -0.02 86 1.63 4A ES
COMLAB 48 -1.66 80 -2.10 1109 -0.11 502 -0.07 3948 -0.46 2002 1.23 51 -2.20 <20 bld <20 bld 70 -0.74 4A ES
COMLAB 57 -0.49 96 -0.48 1192 1.19 489 -0.45 4230 1.30 1977 0.96 59 -0.42 <5 bld 18 -0.83 73 -0.30 4A AAS
COMLAB 53 -1.01 92 -0.88 993 -1.92 488 -0.47 3880 -0.88 1740 -1.58 60 -0.20 <25 bld <25 bld 75 0.00 4A ICP
COMLAB 94 3.00 120 1.96 1220 1.63 503 -0.04 3930 -0.57 1960 0.78 83 3.00 21 3.00 39 3.00 93 2.68 4A AAS
COMLAB 82 2.72 nr nr 1040 -1.18 477 -0.80 3912 -0.69 1789 -1.05 118 3.00 94 3.00 22 0.33 77 0.36 4A ES
COMLAB 62 0.17 99 -0.17 1113 -0.04 482 -0.65 4058 0.23 1880 -0.08 57 -0.86 4 -0.55 25 1.06 71 -0.60 4A MS,AAS
COMLAB 58 -0.36 97 -0.38 1107 -0.14 517 0.36 3951 -0.44 1878 -0.10 63 0.47 <5 bld 22 0.25 77 0.30 4A ES
COMLAB 68 0.92 104 0.33 1130 0.22 542 1.08 4180 0.99 1960 0.78 66 1.18 6 0.46 23 0.52 81 0.86 4A MS
COMLAB 58 -0.36 90 -1.09 1058 -0.90 510 0.16 3971 -0.32 1722 -1.77 57 -0.86 <5 bld 19 -0.56 68 -1.04 4A ES
COMLAB 61 0.05 93 -0.77 1128 0.18 520 0.45 3942 -0.50 1893 0.06 61 -0.08 4 -0.45 208 3.00 73 -0.25 4A MS
COMLAB 58 -0.36 100 -0.07 1060 -0.87 529 0.70 4160 0.86 1920 0.35 64 0.69 6 0.36 20 -0.29 74 -0.15 4A MS
COMLAB 57 -0.49 90 -1.09 1061 -0.86 486 -0.53 4081 0.37 1745 -1.52 58 -0.64 4 -0.55 20 -0.29 69 -0.89 4A ICP
COMLAB 47 -1.80 85 -1.56 1048 -1.06 454 -1.45 4029 0.05 1896 0.09 53 -1.66 <3 bld 15 -1.66 60 -2.17 4A ES
COMLAB 44 -2.23 79 -2.19 1101 -0.23 444 -1.74 3209 -3.00 1485 -3.00 49 -2.71 3 -0.82 15 -1.74 60 -2.19 4A
COMLAB 56 -0.62 92 -0.88 1136 0.31 485 -0.56 4198 1.10 1870 -0.19 58 -0.64 4 -0.55 17 -1.10 72 -0.45 4A ES
COMLAB 66 0.69 98 -0.28 1155 0.61 581 2.19 4068 0.29 1913 0.27 82 3.00 14 3.00 21 -0.02 80 0.74 4A ICP
COMLAB 62 0.17 111 1.04 1138 0.35 506 0.04 4035 0.08 1881 -0.07 65 0.92 4 -0.55 22 0.25 81 0.89 4A ICP
COMLAB 61 0.04 93 -0.75 995 -1.89 449 -1.59 3736 -1.78 1802 -0.91 58 -0.57 6 0.32 21 0.01 72 -0.48 4A MS
COMLAB <500 bld <500 bld 1100 -0.25 500 -0.13 4300 1.73 1900 0.13 <500 bld <500 bld <500 bld <500 bld FUS
COMLAB 65 0.56 101 0.03 1104 -0.18 501 -0.10 3959 -0.39 1868 -0.21 65 0.92 8 1.27 24 0.79 79 0.59 4A ES
COMLAB 66 0.69 106 0.54 1113 -0.04 523 0.53 3920 -0.63 1974 0.93 56 -1.08 <3.5 bld 17 -1.10 69 -0.89 4A ES
COMLAB 58 -0.36 89 -1.16 1128 0.19 505 0.02 3845 -1.10 1809 -0.84 67 1.40 <2 bld 20 -0.18 65 -1.44 FUS,4A ICP
COMLAB 58 -0.42 97 -0.39 1058 -0.91 477 -0.78 nr nr 1758 -1.38 66 1.09 <5 bld 21 0.09 81 0.82 4A ICP
COMLAB 65 0.53 98 -0.31 1088 -0.44 463 -1.19 3602 -2.61 1832 -0.60 65 0.90 9 1.72 26 1.32 78 0.42 4A AAS
COMLAB 65 0.56 96 -0.48 1175 0.92 493 -0.33 3948 -0.46 1853 -0.37 64 0.69 16 3.00 22 0.25 76 0.15 FUS ICP
COMLAB 68 0.95 112 1.14 1109 -0.11 509 0.13 4013 -0.05 1918 0.33 69 1.80 5 -0.09 28 1.86 84 1.34 4A AAS
COMLAB 66 0.69 98 -0.28 1100 -0.25 540 1.02 3990 -0.20 1820 -0.72 77 3.00 6 0.36 22 0.25 77 0.30 4A AAS
COMLAB 62 0.19 96 -0.53 1048 -1.06 472 -0.93 3481 -3.00 1896 0.09 56 -1.07 8 1.27 26 1.19 73 -0.24 4A MS
COMLAB 60 -0.09 115 1.45 1190 1.16 515 0.30 4180 0.99 1830 -0.62 62 0.25 5 -0.09 30 2.40 83 1.19 4A ES
COMLAB 71 1.31 95 -0.53 1017 -1.54 496 -0.24 3795 -1.41 1746 -1.52 93 3.00 63 3.00 22 0.25 75 -0.05 4A ES
COMLAB 67 0.82 110 0.94 1123 0.11 550 1.30 3687 -2.08 2001 1.22 65 0.92 5 -0.09 20 -0.29 66 -1.34 4A AAS,ES,MS
COMLAB 65 0.50 121 2.06 1162 0.72 462 -1.22 3998 -0.15 1866 -0.23 66 1.03 8 1.32 24 0.84 78 0.42 4A ES
COMLAB 57 -0.49 94 -0.68 1077 -0.61 500 -0.13 3937 -0.53 1859 -0.30 65 0.92 5 -0.09 19 -0.56 77 0.30 4A ES
COMLAB nr nr nr nr 1026 -1.40 436 -1.97 4067 0.28 1916 0.31 nr nr nr nr nr nr nr nr 4A AAS
COMLAB 76 1.92 107 0.64 1634 3.00 584 2.28 4760 3.00 2042 1.65 65 0.80 4 -0.35 21 0.01 77 0.34 4A MS
COMLAB 58 -0.42 100 -0.07 1095 -0.33 476 -0.82 3796 -1.40 1799 -0.95 60 -0.20 5 -0.18 24 0.87 80 0.74 4A ES
MINELAB <100 bld <100 bld 200 -3.00 <100 -3.00 3200 -3.00 1000 -3.00 <100 bld <100 bld <100 bld <100 bld FUS XRF
MINELAB 134 3.00 194 3.00 1197 1.27 583 2.24 3873 -0.92 1836 -0.55 172 3.00 40 3.00 124 3.00 247 3.00 4A ES
MINELAB 28 -3.00 54 -3.00 991 -1.95 413 -2.63 3534 -3.00 1717 -1.82 25 -3.00 <10 bld <10 bld 46 -3.00 3A,MICR ES
MINELAB 64 0.47 96 -0.48 1185 1.08 518 0.39 4166 0.90 1962 0.80 70 2.12 11 2.41 27 1.49 87 1.77 4A AAS
MINELAB <200 bld <200 bld 1089 -0.42 467 -1.09 3850 -1.07 1729 -1.70 <200 bld <200 bld <200 bld <200 bld FUS ICP
MINELAB <100 bld 111 0.99 1143 0.42 567 1.79 4162 0.87 2094 2.21 <100 bld <100 bld <100 bld 109 3.00 4A AAS
Highlighted values are outliers which are assigned a z-score of -3.00 or 3.00 in the standardised values.
Method Reading
Alex Stewart International Argentina SA - Perito Moreno Report Page 19
Lead Assay (Total Digest) - Mean of Absolute Standardized Values - April 2019 Lead Assay (Total Digest) - Mean of Standardized Values - April 2019
Standard Deviations Standard Deviations
ASA MENDOZA
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
-3 -2 -1 0 1 2 30 1 2
ASA MENDOZA
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
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COMLAB
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MINELAB
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Alex Stewart International Argentina SA - Perito Moreno ReportPage 20
Lead (Partial Digest) Round Robin - Summary Statistics, Assays, Standardised Values and Graphs - April 2019
Standard Reference GBM319-1 GBM319-2 GBM319-3 GBM319-4 GBM319-5 GBM319-6 GBM319-7 GBM319-8 GBM319-9 GBM319-10
MEAN (ppm) 62 95 1133 502 4074 1895 56 5 17 59
STDEV (ppm) 7 8 62 31 204 119 9 3 5 12
95% CI (ppm) 2 2 15 8 50 29 2 1 1 3
95% CI (%) 2.81% 2.19% 1.34% 1.50% 1.24% 1.52% 4.09% 20.95% 8.14% 5.22% Lead Assay (Partial Digest) - Mean of Absolute Standardized Values - April 2019MIN (ppm) 49 81 1002 433 3562 1637 36 1 6 27
MEDIAN (ppm) 62 95 1121 501 4048 1900 57 4 17 58
MAX (ppm) 80 118 1289 587 4565 2205 75 11 32 87
IQR (ppm) 7 12 78 42 250 138 7 4 6 13
COUNT 57 64 64 65 64 66 56 32 59 62
Standard Reference GBM319-1 GBM319-2 GBM319-3 GBM319-4 GBM319-5 GBM319-6 GBM319-7 GBM319-8 GBM319-9 GBM319-10
Lab Reference assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score
COMLAB 55 -1.06 94 -0.12 1100 -0.54 513 0.36 4010 -0.32 1790 -0.88 51 -0.53 2 -0.96 19 0.30 58 -0.09 AR ICP
COMLAB 60 -0.31 101 0.71 1210 1.25 587 2.77 4310 1.16 2070 1.48 57 0.17 <2 bld 21 0.66 59 -0.01 AR ICP
COMLAB 62 -0.01 89 -0.71 1125 -0.13 501 -0.03 4330 1.25 1915 0.17 61 0.64 <5 bld 18 0.11 66 0.56 AR AAS
COMLAB 58 -0.61 85 -1.19 1116 -0.28 566 2.09 4175 0.49 2104 1.76 50 -0.64 8 1.20 20 0.48 53 -0.50 AR ES
COMLAB 59 -0.46 97 0.24 1135 0.03 503 0.03 4040 -0.17 1990 0.80 54 -0.18 3 -0.60 11 -1.16 54 -0.42 AR ES
COMLAB 61 -0.16 104 1.06 1210 1.25 479 -0.75 4200 0.62 1820 -0.63 54 -0.18 9 1.57 14 -0.61 52 -0.58 AR ES
COMLAB 64 0.29 95 0.00 1080 -0.86 534 1.04 4000 -0.36 1920 0.21 59 0.41 6 0.48 12 -0.98 52 -0.58 AR ICP
COMLAB 64 0.29 95 0.00 1180 0.76 524 0.72 4030 -0.22 1910 0.13 56 0.06 <2 bld 18 0.11 59 -0.01 AR ES
COMLAB 58 -0.61 89 -0.71 1083 -0.81 480 -0.71 3822 -1.24 1772 -1.04 52 -0.41 2 -0.96 15 -0.43 53 -0.50 AR ES
COMLAB 65 0.44 95 0.00 1110 -0.37 502 0.00 4280 1.01 1900 0.04 52 -0.41 2 -0.96 13 -0.80 50 -0.74 AR ES
COMLAB 64 0.29 97 0.24 1090 -0.70 485 -0.55 3920 -0.76 1830 -0.55 57 0.17 <2 bld 14 -0.61 52 -0.58 AR ES
COMLAB 65 0.44 99 0.47 1140 0.11 521 0.62 4030 -0.22 1910 0.13 55 -0.06 nr nr nr nr 58 -0.09 AR AAS
COMLAB 66 0.59 101 0.71 1160 0.44 523 0.69 4170 0.47 1920 0.21 58 0.29 5 0.12 19 0.30 58 -0.09 AR AAS
COMLAB 59 -0.46 93 -0.24 1190 0.92 478 -0.78 4010 -0.32 1980 0.72 59 0.41 4 -0.24 19 0.30 53 -0.50 AR ES
COMLAB 64 0.28 97 0.20 1115 -0.29 480 -0.71 4040 -0.17 1750 -1.22 55 -0.11 nr nr 15 -0.41 53 -0.51 AR MS
COMLAB 68 0.89 98 0.35 1161 0.45 534 1.04 4404 1.62 2037 1.20 40 -1.81 4 -0.24 11 -1.16 41 -1.47 AR ES
COMLAB 69 1.07 99 0.47 1080 -0.86 504 0.06 3852 -1.09 1796 -0.84 58 0.32 2 -0.83 15 -0.34 53 -0.48 AR ICP
COMLAB 60 -0.31 93 -0.24 1076 -0.92 466 -1.17 3867 -1.02 1780 -0.97 59 0.41 4 -0.24 13 -0.80 51 -0.66 AR ES
COMLAB 68 0.89 95 0.00 1141 0.13 492 -0.32 3729 -1.69 1758 -1.15 58 0.29 <5 bld 18 0.11 58 -0.09 AR ES
COMLAB 70 1.19 110 1.78 1210 1.25 537 1.14 4220 0.71 1950 0.46 58 0.29 5 0.12 22 0.84 74 1.21 AR ICP
COMLAB 93 3.00 98 0.35 1258 2.03 553 1.66 4343 1.32 2000 0.89 118 3.00 99 3.00 14 -0.61 68 0.72 AR ES
COMLAB <100 bld 101 0.75 1206 1.18 580 2.55 3819 -1.25 2028 1.12 116 3.00 114 3.00 <100 bld <100 bld AR ES
COMLAB 59 -0.46 98 0.35 1119 -0.23 522 0.65 3969 -0.52 1860 -0.29 61 0.64 3 -0.60 21 0.66 76 1.37 AR ES
COMLAB 52 -1.53 81 -1.66 1107 -0.42 483 -0.60 3952 -0.60 1855 -0.34 44 -1.40 <3 bld 14 -0.63 48 -0.95 AR ES
COMLAB 65 0.44 103 0.95 1104 -0.47 465 -1.20 4084 0.05 1901 0.05 64 0.99 16 3.00 28 1.94 71 0.97 AR ES
COMLAB 61 -0.11 89 -0.68 1081 -0.85 489 -0.43 3884 -0.94 1768 -1.07 57 0.13 1 -1.28 17 -0.07 58 -0.11 AR MS
COMLAB 49 -1.98 89 -0.70 nr nr 487 -0.49 nr nr nr nr 58 0.30 nr nr 17 -0.01 79 1.59 3A ICP
COMLAB 63 0.14 89 -0.71 1100 -0.54 494 -0.26 3971 -0.51 1842 -0.45 55 -0.06 <2 bld 16 -0.25 56 -0.25 AR ES
COMLAB 84 3.00 81 -1.66 1103 -0.49 504 0.07 4086 0.06 1717 -1.50 73 2.04 5 0.12 27 1.75 78 1.54 AR AAS
COMLAB 62 -0.01 106 1.30 1091 -0.68 499 -0.10 3895 -0.88 1937 0.36 52 -0.41 10 1.93 14 -0.61 53 -0.50 AR ES
COMLAB 67 0.74 97 0.24 1115 -0.29 531 0.95 4011 -0.31 1865 -0.25 53 -0.29 6 0.48 19 0.30 68 0.72 3A ICP
COMLAB 64 0.25 86 -1.12 1132 -0.02 470 -1.04 4076 0.01 1808 -0.74 57 0.21 <5 bld 15 -0.40 56 -0.24 AR ICP
COMLAB 59 -0.44 84 -1.27 1002 -2.12 433 -2.24 3935 -0.68 1663 -1.96 50 -0.69 2 -1.03 14 -0.63 49 -0.81 AR MS
COMLAB 56 -0.91 81 -1.72 1084 -0.79 478 -0.80 3942 -0.65 1876 -0.16 55 -0.07 2 -0.85 14 -0.56 62 0.20 AR AAS
COMLAB 62 -0.01 86 -1.07 1120 -0.21 500 -0.06 4093 0.09 1900 0.04 45 -1.22 <5 bld 11 -1.16 40 -1.56 AR AAS
COMLAB 72 1.49 95 0.00 1210 1.25 537 1.14 4500 2.09 1890 -0.04 78 2.62 40 3.00 15 -0.43 49 -0.82 AR ES
COMLAB 62 -0.01 81 -1.66 1130 -0.05 516 0.46 4210 0.67 2150 2.15 63 0.87 3 -0.60 22 0.84 66 0.56 AR MS
COMLAB 49 -1.96 96 0.12 1170 0.60 478 -0.78 3990 -0.41 1880 -0.13 53 -0.29 4 -0.24 14 -0.61 54 -0.42 AR ES
COMLAB 69 1.03 82 -1.49 1084 -0.79 441 -1.97 3562 -2.51 1740 -1.30 86 3.00 60 3.00 13 -0.86 45 -1.19 AR ES
COMLAB 58 -0.61 105 1.18 1203 1.13 499 -0.10 3915 -0.78 1982 0.73 60 0.52 2 -1.10 16 -0.25 63 0.32 2A,3A AAS,MS
COMLAB 60 -0.31 87 -0.95 1097 -0.58 479 -0.75 4015 -0.29 1901 0.05 58 0.29 5 0.12 14 -0.61 62 0.23 AR ES
COMLAB 84 3.00 105 1.18 1289 2.53 628 3.00 4528 2.22 2068 1.46 74 2.15 <5 bld 26 1.57 113 3.00 3A ICP
COMLAB 59 -0.46 87 -0.95 1052 -1.31 465 -1.20 3847 -1.11 1767 -1.08 60 0.52 <5 bld 18 0.11 70 0.89 3A AAS
COMLAB 13 -3.00 51 -3.00 1163 0.49 507 0.16 4358 1.39 1940 0.38 nr nr nr nr nr nr nr nr AR AAS
COMLAB 75 1.99 115 2.37 1369 3.00 575 2.38 4766 3.00 2086 1.61 57 0.20 2 -0.92 13 -0.87 61 0.16 AR MS
COMLAB 61 -0.16 97 0.24 1118 -0.24 526 0.78 4055 -0.10 1917 0.19 36 -2.27 <10 bld <10 bld 37 -1.80 AR AAS
COMLAB 71 1.34 107 1.42 1123 -0.16 525 0.75 4118 0.21 1826 -0.58 60 0.52 8 1.20 30 2.30 66 0.56 AD AAS
MINELAB 67 0.74 93 -0.24 1250 1.90 519 0.56 4200 0.62 1890 -0.04 58 0.29 <5 bld 24 1.21 63 0.32 3A AAS
MINELAB 55 -1.06 85 -1.19 1066 -1.09 448 -1.76 4276 0.99 1874 -0.18 58 0.29 <2 bld 13 -0.80 61 0.15 AR ES
MINELAB <500 bld <500 bld 1200 1.09 600 3.00 43500 3.00 2050 1.31 <500 bld <500 bld <500 bld <500 bld 3A AAS
MINELAB 52 -1.51 83 -1.42 1213 1.30 491 -0.36 4225 0.74 2030 1.14 36 -2.27 bld bld 18 0.11 74 1.21 3A ES
MINELAB 57 -0.76 92 -0.36 1187 0.87 469 -1.07 4112 0.18 1817 -0.66 57 0.17 <10 bld 20 0.48 70 0.89 AR ES
MINELAB 93 3.00 90 -0.59 1038 -1.54 447 -1.79 3709 -1.79 1767 -1.07 129 3.00 141 3.00 19 0.36 52 -0.54 AR AAS
MINELAB <100 bld 105 1.18 1050 -1.35 520 0.59 4145 0.35 1845 -0.42 <100 bld <100 bld <100 bld <100 bld AR ES
MINELAB 59 -0.47 89 -0.71 1082 -0.83 474 -0.91 3901 -0.85 1637 -2.18 23 -3.00 2 -1.14 7 -1.92 27 -2.62 ICP
MINELAB 51 -1.66 96 0.12 1350 3.00 492 -0.32 4540 2.28 2080 1.56 45 -1.22 <1 bld 23 1.02 58 -0.09
MINELAB 49 -1.99 84 -1.31 1287 2.50 555 1.73 4565 2.41 2205 2.62 41 -1.68 <2 bld 10 -1.36 37 -1.76 AR ES
MINELAB 61 -0.09 95 0.03 1122 -0.18 489 -0.43 4241 0.82 1914 0.16 59 0.44 5 0.11 nr nr 60 0.10 AR MS
MINELAB 63 0.08 102 0.80 1202 1.12 501 -0.02 4178 0.51 1967 0.61 56 0.00 5 0.21 17 0.00 58 -0.10 AR ES
MINELAB 77 2.17 94 -0.12 1080 -0.86 516 0.45 4004 -0.35 1794 -0.85 94 3.00 <17 bld 18 0.04 57 -0.15 AR ES
MINELAB 68 0.89 108 1.54 1165 0.52 510 0.26 4154 0.39 1930 0.30 98 3.00 37 3.00 53 3.00 85 2.11 AR ES
MINELAB 80 2.71 102 0.83 1235 1.65 541 1.26 4350 1.35 2111 1.82 105 3.00 70 3.00 21 0.67 78 1.55 AR ICP
MINELAB 55 -1.04 102 0.83 1131 -0.04 526 0.79 3932 -0.70 1885 -0.09 40 -1.83 bld bld 6 -2.00 40 -1.59 AR AAS
MINELAB bld bld bld bld 1158 0.40 510 0.26 4162 0.43 1914 0.16 bld bld bld bld bld bld bld bld AR AAS
MINELAB 68 0.95 98 0.33 1149 0.26 502 -0.01 4064 -0.05 1933 0.32 71 1.77 11 2.32 26 1.52 79 1.61 3A AAS
MINELAB 101 3.00 101 0.71 1081 -0.84 486 -0.52 3611 -2.27 1745 -1.26 75 2.27 7 0.84 29 2.12 82 1.86 AR AAS
MINELAB 72 1.49 94 -0.12 1010 -1.99 490 -0.39 3964 -0.54 1726 -1.42 45 -1.22 10 1.93 17 -0.07 54 -0.42 AR AAS
MINELAB 61 -0.16 94 -0.16 1151 0.29 486 -0.53 4142 0.33 1930 0.30 48 -0.83 <5 bld 11 -1.23 51 -0.70 AR AAS
MINELAB 87 3.00 118 2.77 1102 -0.51 528 0.83 4008 -0.33 1867 -0.23 73 2.02 17 3.00 32 2.61 87 2.29 AR AAS
Highlighted values are outliers which are assigned a z-score of -3.00 or 3.00 in the standardised values.
Method Reading
Alex Stewart International Argentina SA - Perito Moreno Report Page 21
Lead Assay (Partial Digest) - Mean of Absolute Standardized Values - April 2019 Lead Assay (Partial Digest) - Mean of Standardized Values - April 2019
Standard Deviations Standard Deviations
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
-3 -2 -1 0 1 2 30 1 2
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
Alex Stewart International Argentina SA - Perito Moreno ReportPage 22
Zinc (Total Digest) Round Robin - Summary Statistics, Assays, Standardised Values and Graphs - April 2019
Standard Reference GBM319-1 GBM319-2 GBM319-3 GBM319-4 GBM319-5 GBM319-6 GBM319-7 GBM319-8 GBM319-9 GBM319-10
MEAN (ppm) 450 101 4067 1791 3833 1842 659 23 714 831
STDEV (ppm) 21 7 179 65 142 78 33 4 25 37
95% CI (ppm) 5 2 43 16 35 19 8 1 6 9
95% CI (%) 1.16% 1.72% 1.05% 0.89% 0.91% 1.03% 1.22% 5.32% 0.85% 1.09% Zinc Assay (Total Digest) - Mean of Absolute Standardized Values - April 2019MIN (ppm) 400 87 3670 1655 3454 1660 583 12 668 729
MEDIAN (ppm) 450 101 4100 1790 3820 1841 667 22 715 830
MAX (ppm) 497 113 4493 1944 4150 2020 725 34 770 915
IQR (ppm) 28 10 251 88 149 77 37 4 33 51
COUNT 63 58 68 65 65 66 65 54 64 66
Standard Reference GBM319-1 GBM319-2 GBM319-3 GBM319-4 GBM319-5 GBM319-6 GBM319-7 GBM319-8 GBM319-9 GBM319-10
Lab Reference assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score
MAXXAM ONTARIO 420 -1.44 <200 bld 4100 0.18 1800 0.13 3860 0.19 1800 -0.54 620 -1.19 <200 bld 670 -1.79 800 -0.84 NAA
ASA MENDOZA 468 0.84 95 -0.83 4119 0.29 1798 0.10 3899 0.47 1812 -0.38 678 0.58 22 -0.11 733 0.77 844 0.34 4A ES
COMLAB 410 -1.92 91 -1.44 3810 -1.44 1700 -1.40 3400 -3.00 1660 -2.32 647 -0.36 21 -0.34 709 -0.21 791 -1.08 4A ICP
COMLAB 405 -2.16 93 -1.13 4040 -0.15 1770 -0.33 3800 -0.23 1670 -2.19 695 1.10 22 -0.11 770 2.28 790 -1.11 4A ICP
COMLAB 445 -0.26 104 0.52 4110 0.24 1850 0.90 3880 0.33 1870 0.36 713 1.65 22 -0.11 800 3.00 899 1.82 4A ICP
COMLAB 515 3.00 113 1.87 4195 0.72 1781 -0.16 3927 0.66 1865 0.29 665 0.19 25 0.56 712 -0.08 830 -0.03 4A AAS
COMLAB 240 -3.00 35 -3.00 3004 -3.00 1322 -3.00 2644 -3.00 1240 -3.00 178 -3.00 16 -1.46 288 -3.00 241 -3.00 4A ICP
COMLAB 471 0.98 105 0.67 4104 0.21 1795 0.06 3928 0.67 1888 0.59 694 1.07 25 0.58 729 0.61 855 0.64 4A ES
COMLAB 451 0.03 100 -0.08 4190 0.69 1915 1.90 3890 0.40 1890 0.61 677 0.55 21 -0.34 730 0.65 830 -0.03 4A ES
COMLAB 437 -0.64 103 0.37 4350 1.58 1850 0.90 3930 0.69 1770 -0.92 654 -0.15 30 1.68 708 -0.25 845 0.37 4A ES
COMLAB 463 0.60 106 0.82 4110 0.24 1790 -0.02 4100 1.89 2000 2.02 667 0.25 22 -0.11 727 0.53 841 0.26 4A ES
COMLAB 492 1.97 108 1.12 4180 0.63 2130 3.00 3830 -0.02 1870 0.36 666 0.22 23 0.11 697 -0.69 896 1.74 4A ES
COMLAB 497 2.21 107 0.97 4290 1.25 1810 0.29 4060 1.60 1800 -0.54 687 0.86 25 0.56 719 0.20 852 0.56 4A ICP
COMLAB 438 -0.59 101 0.07 4140 0.41 1900 1.67 3860 0.19 1810 -0.41 667 0.25 21 -0.34 707 -0.29 789 -1.14 4A ES
COMLAB 433 -0.83 62 -3.00 4085 0.10 1782 -0.14 3798 -0.25 1872 0.38 652 -0.21 30 1.68 696 -0.73 802 -0.79 4A ES
COMLAB 450 -0.02 97 -0.53 3780 -1.61 1750 -0.63 3700 -0.94 1780 -0.79 678 0.58 21 -0.34 697 -0.69 846 0.39 4A ES
COMLAB 417 -1.59 91 -1.44 3994 -0.41 1730 -0.94 3764 -0.49 1796 -0.59 639 -0.61 19 -0.79 692 -0.90 813 -0.49 4A ES
COMLAB 449 -0.07 101 0.07 4210 0.80 1850 0.90 3820 -0.09 2020 2.27 686 0.83 21 -0.34 689 -1.02 818 -0.36 4A ES
COMLAB 450 -0.02 106 0.82 4240 0.97 1760 -0.48 3830 -0.02 1945 1.31 636 -0.70 21 -0.34 701 -0.53 827 -0.12 4A ES
COMLAB 452 0.08 111 1.57 4260 1.08 1880 1.36 4150 2.24 2000 2.02 649 -0.30 20 -0.56 746 1.30 859 0.74 4A ES
COMLAB 459 0.41 111 1.57 4130 0.35 1800 0.13 4020 1.32 1870 0.36 650 -0.27 nr nr 732 0.73 813 -0.49 4A MS
COMLAB 440 -0.49 90 -1.59 3967 -0.56 1750 -0.63 3750 -0.59 1712 -1.66 707 1.47 37 3.00 732 0.73 842 0.29 5A ES
COMLAB 446 -0.19 101 0.07 4199 0.74 1799 0.12 3981 1.05 1837 -0.07 673 0.43 21 -0.43 697 -0.71 855 0.63 4A ICP
COMLAB 450 -0.02 102 0.22 3920 -0.82 1780 -0.17 3860 0.19 1890 0.61 666 0.22 22 -0.11 754 1.63 884 1.41 4A ES
COMLAB 450 -0.02 76 -3.00 4127 0.33 1884 1.42 3837 0.03 1858 0.20 598 -1.86 <50 bld 722 0.32 779 -1.40 4A AAS
COMLAB 473 1.07 108 1.12 4048 -0.11 1741 -0.77 3771 -0.44 1811 -0.40 671 0.37 25 0.56 728 0.57 844 0.34 4A AAS
COMLAB 470 0.93 111 1.57 4262 1.09 1784 -0.11 3872 0.28 1961 1.52 587 -2.19 bld bld 732 0.73 827 -0.12 4A AAS
COMLAB 454 0.17 102 0.22 4060 -0.04 1740 -0.79 3820 -0.09 1880 0.48 680 0.64 20 -0.56 702 -0.49 824 -0.20 4A ES
COMLAB 482 1.50 121 3.00 4182 0.64 1848 0.87 3784 -0.35 1849 0.09 725 2.02 58 3.00 716 0.08 891 1.60 4A ES
COMLAB 469 0.88 103 0.37 4046 -0.12 1786 -0.08 3768 -0.46 1867 0.32 673 0.43 24 0.33 728 0.57 845 0.37 4A ES
COMLAB 452 0.08 103 0.37 4152 0.47 1831 0.61 3857 0.17 1948 1.35 654 -0.15 24 0.33 702 -0.49 811 -0.55 4A AAS
COMLAB 425 -1.21 94 -0.98 3790 -1.55 1700 -1.40 3810 -0.16 1740 -1.30 652 -0.21 18 -1.01 698 -0.65 804 -0.73 4A ICP
COMLAB 486 1.69 105 0.67 3850 -1.22 1770 -0.33 3680 -1.08 1810 -0.41 676 0.52 48 3.00 693 -0.86 826 -0.14 4A AAS
COMLAB 488 1.79 110 1.44 4226 0.89 1839 0.73 3888 0.39 1937 1.21 668 0.28 31 1.84 679 -1.44 823 -0.22 4A ES
COMLAB 449 -0.07 104 0.52 4177 0.61 1838 0.72 3891 0.41 1910 0.87 681 0.67 31 1.91 734 0.81 859 0.74 4A MS,AAS
COMLAB 445 -0.26 97 -0.53 4100 0.18 1786 -0.08 3792 -0.29 1820 -0.28 670 0.34 18 -1.01 721 0.28 827 -0.12 4A ES
COMLAB 441 -0.45 99 -0.23 3940 -0.71 1720 -1.09 3820 -0.09 1830 -0.15 652 -0.21 22 -0.23 676 -1.55 803 -0.76 4A MS
COMLAB 450 -0.02 87 -2.04 4123 0.31 1824 0.50 3777 -0.40 1807 -0.45 683 0.73 12 -2.36 704 -0.41 845 0.37 4A ES
COMLAB 419 -1.49 94 -0.98 3860 -1.16 1690 -1.55 3642 -1.35 1730 -1.43 627 -0.97 21 -0.34 686 -1.14 799 -0.87 4A ES
COMLAB 469 0.88 107 0.97 3930 -0.77 1770 -0.33 3790 -0.30 1750 -1.17 621 -1.16 27 1.01 671 -1.75 798 -0.89 4A ES
COMLAB 474 1.12 101 0.07 4095 0.16 1866 1.15 3881 0.34 1869 0.34 688 0.89 16 -1.46 735 0.85 862 0.82 4A ICP
COMLAB 450 -0.02 88 -1.90 4193 0.70 1731 -0.93 3775 -0.41 1816 -0.33 669 0.30 22 -0.23 722 0.31 819 -0.33 4A ES
COMLAB 442 -0.38 104 0.52 3409 -3.00 1569 -3.00 3088 -3.00 1599 -3.00 583 -2.32 49 3.00 624 -3.00 673 -3.00 4A
COMLAB 471 0.98 97 -0.53 4220 0.86 1830 0.59 3985 1.07 1858 0.20 684 0.76 21 -0.34 729 0.61 829 -0.06 4A ES
COMLAB 36 -3.00 101 0.08 4493 2.38 1812 0.32 4148 2.23 1852 0.13 603 -1.71 33 2.40 677 -1.51 729 -2.75 4A ICP
COMLAB 435 -0.72 91 -1.44 4277 1.17 1810 0.29 3930 0.69 1945 1.31 688 0.89 13 -2.14 668 -1.87 856 0.66 4A ICP
COMLAB 464 0.65 99 -0.23 3943 -0.69 1759 -0.50 3749 -0.59 1798 -0.56 677 0.55 18 -1.01 704 -0.41 810 -0.57 4A ES
COMLAB 700 3.00 <500 bld 4400 1.86 2000 3.00 4400 3.00 2100 3.00 800 3.00 <500 bld 800 3.00 900 1.84 FUS
COMLAB 435 -0.73 97 -0.53 4083 0.09 1839 0.73 3930 0.69 1836 -0.08 667 0.25 22 -0.11 728 0.57 834 0.07 4A ES
COMLAB 418 -1.54 101 0.07 3696 -2.08 1655 -2.09 3358 -3.00 1732 -1.40 615 -1.34 28 1.23 690 -0.98 766 -1.75 4A ES
COMLAB 453 0.13 98 -0.45 3997 -0.39 1889 1.50 3655 -1.26 1961 1.52 661 0.07 20 -0.53 709 -0.19 826 -0.14 FUS,4A ICP
COMLAB nr nr 102 0.22 3717 -1.96 1701 -1.39 3733 -0.71 1773 -0.88 nr nr nr nr 725 0.45 nr nr 4A ICP
COMLAB 447 -0.18 96 -0.73 3708 -2.01 1813 0.34 3669 -1.16 1856 0.18 664 0.17 24 0.32 730 0.66 847 0.42 4A AAS
COMLAB 428 -1.06 91 -1.44 4118 0.28 1701 -1.39 3708 -0.88 1737 -1.34 622 -1.13 20 -0.56 698 -0.65 793 -1.03 FUS ICP
COMLAB 471 0.98 113 1.87 4008 -0.33 1782 -0.14 3871 0.27 1809 -0.42 676 0.52 27 1.01 720 0.24 836 0.13 4A AAS
COMLAB 494 2.07 119 2.78 4140 0.41 1870 1.21 3670 -1.15 1640 -2.58 693 1.04 32 2.13 684 -1.22 766 -1.75 4A AAS
COMLAB 461 0.51 95 -0.90 3938 -0.72 1695 -1.47 3681 -1.07 1845 0.04 692 1.02 21 -0.29 753 1.59 915 2.24 4A MS
COMLAB 445 -0.26 104 0.52 4110 0.24 1860 1.05 3770 -0.44 1950 1.38 643 -0.49 25 0.56 770 2.28 884 1.41 4A ES
COMLAB 480 1.39 101 0.13 4221 0.86 1891 1.52 4026 1.36 1876 0.44 715 1.70 24 0.33 743 1.18 875 1.17 4A ES
COMLAB 466 0.74 107 0.97 3670 -2.22 1710 -1.25 3454 -2.68 1776 -0.84 619 -1.22 20 -0.56 725 0.45 790 -1.11 4A AAS,ES
COMLAB 452 0.08 105 0.67 3829 -1.33 1823 0.49 3693 -0.99 1819 -0.29 702 1.31 24 0.33 733 0.77 837 0.15 4A ES
COMLAB 448 -0.11 77 -3.00 4032 -0.20 1812 0.32 3932 0.70 1829 -0.17 683 0.73 18 -1.01 742 1.14 863 0.85 4A ES
COMLAB 428 -1.06 80 -3.00 3926 -0.79 1766 -0.39 3704 -0.91 1826 -0.20 652 -0.21 5 -3.00 712 -0.08 842 0.29 4A AAS
COMLAB 456 0.27 104 0.52 4206 0.78 1944 2.34 4150 2.24 1956 1.45 672 0.40 23 0.06 760 1.87 890 1.58 4A MS
COMLAB 427 -1.11 94 -0.98 4029 -0.21 1906 1.76 3795 -0.27 1847 0.06 591 -2.07 21 -0.34 700 -0.57 799 -0.87 4A ES
MINELAB 200 -3.00 <100 bld 3700 -2.05 1400 -3.00 3500 -2.35 1600 -3.00 400 -3.00 <100 bld 600 -3.00 1000 3.00 FUS XRF
MINELAB 588 3.00 224 3.00 4278 1.18 1795 0.06 3741 -0.65 1869 0.35 810 3.00 249 3.00 816 3.00 894 1.69 4A ES
MINELAB 435 -0.73 88 -1.89 3930 -0.77 1660 -2.01 3584 -1.76 1669 -2.21 594 -1.98 <2 -3.00 676 -1.55 770 -1.65 3A,MICR ES
MINELAB 462 0.56 95 -0.83 4051 -0.09 1780 -0.17 3860 0.19 1830 -0.15 650 -0.26 34 2.58 727 0.51 815 -0.44 4A AAS
MINELAB 400 -2.39 <200 bld 4000 -0.37 1701 -1.39 3715 -0.83 1896 0.68 600 -1.79 <200 bld 715 0.02 772 -1.59 FUS ICP
MINELAB 462 0.53 177 3.00 4304 1.33 1716 -1.16 4066 1.65 1808 -0.44 635 -0.74 112 3.00 670 -1.79 787 -1.19 4A AAS
Highlighted values are outliers which are assigned a z-score of -3.00 or 3.00 in the standardised values.
Method Reading
Alex Stewart International Argentina SA - Perito Moreno Report Page 23
Zinc Assay (Total Digest) - Mean of Absolute Standardized Values - April 2019 Zinc Assay (Total Digest) - Mean of Standardized Values - April 2019
Standard Deviations Standard Deviations
MAXXAM ONTARIO
ASA MENDOZA
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
-3 -2 -1 0 1 2 30 1 2
MAXXAM ONTARIO
ASA MENDOZA
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
Alex Stewart International Argentina SA - Perito Moreno ReportPage 24
Zinc (Partial Digest) Round Robin - Summary Statistics, Assays, Standardised Values and Graphs - April 2019
Standard Reference GBM319-1 GBM319-2 GBM319-3 GBM319-4 GBM319-5 GBM319-6 GBM319-7 GBM319-8 GBM319-9 GBM319-10
MEAN (ppm) 418 61 4115 1808 3874 1839 644 18 720 804
STDEV (ppm) 23 6 180 91 174 90 38 3 34 47
95% CI (ppm) 5 1 43 22 42 22 9 1 8 12
95% CI (%) 1.30% 2.42% 1.06% 1.22% 1.08% 1.18% 1.47% 4.12% 1.15% 1.45% Zinc Assay (Partial Digest) - Mean of Absolute Standardized Values - April 2019MIN (ppm) 363 49 3745 1600 3495 1658 552 14 640 680
MEDIAN (ppm) 414 62 4127 1808 3880 1822 648 17 723 805
MAX (ppm) 477 77 4550 2030 4280 2050 720 24 805 910
IQR (ppm) 33 6 240 104 223 140 50 4 37 60
COUNT 68 59 67 67 67 67 63 46 66 64
Standard Reference GBM319-1 GBM319-2 GBM319-3 GBM319-4 GBM319-5 GBM319-6 GBM319-7 GBM319-8 GBM319-9 GBM319-10
Lab Reference assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score
COMLAB 403 -0.65 63 0.30 4240 0.70 1990 1.99 4030 0.90 1870 0.35 598 -1.21 17 -0.31 740 0.58 770 -0.72 AR ICP
COMLAB 422 0.19 64 0.47 4550 2.42 1960 1.66 4280 2.34 2010 1.91 671 0.70 18 0.09 763 1.26 808 0.08 AR ICP
COMLAB 422 0.19 64 0.47 4091 -0.13 1858 0.55 3893 0.11 1966 1.42 679 0.91 22 1.69 727 0.20 835 0.65 AR AAS
COMLAB 477 2.61 80 3.00 4481 2.03 2030 2.43 4269 2.27 2050 2.35 685 1.07 30 3.00 805 2.49 839 0.74 AR ES
COMLAB 405 -0.56 63 0.30 4260 0.81 2000 2.10 3800 -0.42 1940 1.13 637 -0.19 16 -0.71 724 0.11 795 -0.19 AR ES
COMLAB 400 -0.78 69 1.34 4180 0.36 1735 -0.80 3880 0.04 1770 -0.77 623 -0.56 22 1.69 727 0.20 814 0.21 AR ES
COMLAB 418 0.01 68 1.17 4260 0.81 2030 2.43 3960 0.50 1860 0.24 647 0.07 19 0.49 776 1.64 861 1.20 AR ICP
COMLAB 411 -0.30 60 -0.22 4300 1.03 1850 0.46 3770 -0.60 1785 -0.60 638 -0.16 15 -1.11 724 0.11 772 -0.68 AR ES
COMLAB 388 -1.31 81 3.00 3855 -1.44 1720 -0.96 3649 -1.29 1764 -0.83 595 -1.29 15 -1.11 662 -1.71 745 -1.25 AR ES
COMLAB 432 0.63 63 0.30 3990 -0.69 1850 0.46 3990 0.67 1910 0.79 624 -0.53 17 -0.31 723 0.08 804 0.00 AR ES
COMLAB 402 -0.69 64 0.47 3940 -0.97 1800 -0.09 3740 -0.77 1770 -0.77 608 -0.95 16 -0.71 708 -0.36 803 -0.02 AR ES
COMLAB 409 -0.39 64 0.47 4120 0.03 1800 -0.09 3700 -1.00 1860 0.24 637 -0.19 nr nr 704 -0.48 795 -0.19 AR AAS
COMLAB 414 -0.17 60 -0.22 4250 0.75 1885 0.84 3970 0.55 1910 0.79 642 -0.06 16 -0.71 744 0.70 825 0.44 AR AAS
COMLAB 409 -0.39 61 -0.05 4080 -0.19 1790 -0.20 3700 -1.00 1820 -0.21 630 -0.37 16 -0.71 715 -0.15 777 -0.57 AR ES
COMLAB 386 -1.40 60 -0.22 3860 -1.41 1750 -0.64 3600 -1.57 1720 -1.32 619 -0.66 nr nr 675 -1.33 762 -0.89 AR MS
COMLAB 389 -1.27 49 -2.14 4066 -0.27 1749 -0.65 3802 -0.41 1720 -1.32 475 -3.00 22 1.69 389 -3.00 435 -3.00 AR ES
COMLAB 414 -0.17 56 -0.94 4162 0.27 1808 0.00 3900 0.15 1785 -0.61 586 -1.54 16 -0.59 725 0.13 760 -0.93 AR ICP
COMLAB 395 -1.00 63 0.30 4024 -0.50 1771 -0.41 3832 -0.24 1760 -0.88 664 0.52 nr nr 705 -0.45 831 0.57 3A AAS
COMLAB 401 -0.74 58 -0.57 3925 -1.05 1770 -0.42 3892 0.11 1828 -0.12 552 -2.42 17 -0.31 715 -0.15 733 -1.50 AR ES
COMLAB 438 0.89 66 0.82 4009 -0.59 1744 -0.70 3814 -0.34 1773 -0.73 681 0.96 41 3.00 714 -0.18 750 -1.14 AR ES
COMLAB 476 2.57 112 3.00 4290 0.97 1920 1.22 4250 2.16 2040 2.24 672 0.73 20 0.89 786 1.93 876 1.52 AR ICP
COMLAB 413 -0.21 55 -1.09 3895 -1.22 1701 -1.17 3564 -1.78 1658 -2.01 665 0.54 65 3.00 678 -1.24 770 -0.72 AR ES
COMLAB 433 0.66 <100 bld 4240 0.70 1776 -0.35 3575 -1.72 1802 -0.41 587 -1.51 <100 bld 726 0.17 529 -3.00 AR ES
COMLAB 421 0.14 62 0.12 4264 0.83 1842 0.37 3820 -0.31 1848 0.10 663 0.49 16 -0.71 744 0.70 793 -0.23 AR ES
COMLAB 396 -0.97 53 -1.53 3983 -0.73 1694 -1.25 3690 -1.06 1746 -1.03 638 -0.16 14 -1.67 697 -0.67 793 -0.23 AR ES
COMLAB 419 0.05 68 1.17 3924 -1.06 1682 -1.38 3957 0.48 1830 -0.10 685 1.07 175 3.00 727 0.20 838 0.72 AR ES
COMLAB 405 -0.56 57 -0.75 3775 -1.89 1619 -2.07 3654 -1.26 1721 -1.31 572 -1.89 15 -1.11 653 -1.97 805 0.02 AR ES
COMLAB 546 3.00 125 3.00 nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr nr 3A ICP
COMLAB 412 -0.25 59 -0.40 4078 -0.20 1829 0.23 3903 0.17 1817 -0.24 651 0.18 16 -0.71 716 -0.12 816 0.25 AR ES
COMLAB 437 0.85 77 2.73 4690 3.00 1772 -0.40 3787 -0.50 1831 -0.09 683 1.02 34 3.00 730 0.29 847 0.91 AR AAS
COMLAB 450 1.42 60 -0.22 4195 0.45 1816 0.09 4013 0.80 1805 -0.38 660 0.41 18 0.09 777 1.67 893 1.88 AR AAS
COMLAB 378 -1.75 64 0.47 3745 -2.05 1636 -1.88 3327 -3.00 1672 -1.86 574 -1.84 14 -1.51 640 -2.35 740 -1.35 AR ES
COMLAB 446 1.24 64 0.47 4368 1.41 1873 0.71 4102 1.31 1859 0.22 688 1.15 17 -0.31 717 -0.09 834 0.63 3A ICP
COMLAB 407 -0.47 54 -1.27 3749 -2.03 1600 -2.28 3733 -0.81 1794 -0.50 659 0.39 15 -1.11 708 -0.36 818 0.29 AR ICP
COMLAB 376 -1.84 54 -1.27 3918 -1.09 1697 -1.22 3706 -0.96 1760 -0.88 648 0.10 14 -1.51 680 -1.18 711 -1.97 AR ES
COMLAB 416 -0.08 59 -0.40 4077 -0.21 1765 -0.47 3783 -0.52 1967 1.43 638 -0.16 19 0.49 729 0.26 828 0.51 AR AAS
COMLAB 410 -0.36 62 0.18 4138 0.13 1788 -0.21 3842 -0.18 1922 0.92 691 1.23 <20 bld 741 0.61 774 -0.64 3A AAS
COMLAB 400 -0.78 80 3.00 4290 0.97 1840 0.35 3890 0.09 1820 -0.21 580 -1.68 20 0.89 660 -1.77 680 -2.62 AR AAS
COMLAB 427 0.41 63 0.30 4130 0.09 1870 0.68 3900 0.15 1830 -0.10 634 -0.27 21 1.29 737 0.49 713 -1.92 AR ES
COMLAB 418 0.01 58 -0.57 4120 0.03 1730 -0.85 3820 -0.31 1880 0.46 637 -0.19 18 0.09 709 -0.33 801 -0.07 AR MS
COMLAB 418 0.01 62 0.12 4150 0.20 1830 0.24 3940 0.38 1820 -0.21 592 -1.37 29 3.00 736 0.46 751 -1.12 AR ES
COMLAB 419 0.07 60 -0.21 4134 0.11 1880 0.79 4032 0.91 1844 0.05 648 0.10 17 -0.19 736 0.46 715 -1.88 AR ES
COMLAB 419 0.05 90 3.00 4242 0.71 1732 -0.83 4172 1.72 1755 -0.93 641 -0.09 16 -0.71 704 -0.48 784 -0.42 3A AAS,ES
COMLAB 439 0.94 61 -0.05 4209 0.52 1888 0.87 4088 1.23 1954 1.28 690 1.20 19 0.49 752 0.93 849 0.95 AR ES
COMLAB 437 0.85 69 1.34 4525 2.28 1890 0.90 4131 1.48 1991 1.69 699 1.44 26 3.00 723 0.08 910 2.24 3A ICP
COMLAB 412 -0.25 62 0.12 4042 -0.40 1660 -1.62 3732 -0.81 1767 -0.80 650 0.15 40 3.00 707 -0.39 785 -0.40 3A AAS
COMLAB 394 -1.05 nr nr nr nr 1769 -0.43 nr nr 1801 -0.42 nr nr nr nr 705 -0.45 nr nr AR AAS
COMLAB 439 0.94 64 0.51 4190 0.42 1910 1.11 4114 1.38 1930 1.02 670 0.67 17 -0.23 739 0.55 881 1.63 AR MS
COMLAB 433 0.67 63 0.30 4136 0.12 1857 0.54 3846 -0.16 1913 0.83 612 -0.85 17 -0.31 728 0.23 840 0.76 AR AAS
COMLAB 448 1.33 72 1.86 4213 0.55 1714 -1.03 3959 0.49 1738 -1.12 671 0.70 20 0.89 710 -0.30 832 0.59 AD AAS
MINELAB 421 0.14 67 0.99 4325 1.17 1833 0.27 3983 0.63 1749 -1.00 639 -0.14 30 3.00 712 -0.24 791 -0.28 AR ES
MINELAB <500 bld <500 bld 4300 1.03 1900 1.01 4000 0.73 1900 0.68 900 3.00 <500 bld 700 -0.59 800 -0.09 3A AAS
MINELAB 412 -0.25 85 3.00 3831 -1.57 1457 -3.00 3582 -1.68 1908 0.77 483 -3.00 64 3.00 568 -3.00 609 -3.00 AR AAS
MINELAB 411 -0.30 54 -1.27 4003 -0.62 1779 -0.32 3768 -0.61 1846 0.08 662 0.47 5 -3.00 742 0.64 812 0.17 3A ES
MINELAB 439 0.94 54 -1.27 3971 -0.80 1790 -0.20 3851 -0.13 1731 -1.20 940 3.00 461 3.00 702 -0.53 823 0.40 AR ES
MINELAB 454 1.58 68 1.22 4021 -0.52 1781 -0.30 3726 -0.85 1783 -0.63 659 0.37 136 3.00 762 1.22 741 -1.34 3A ES
MINELAB 334 -3.00 50 -2.01 3300 -3.00 1459 -3.00 3067 -3.00 1483 -3.00 467 -3.00 30 3.00 579 -3.00 636 -3.00 AR AAS
MINELAB 420 0.10 <100 bld 4070 -0.25 1835 0.29 3890 0.09 1730 -1.21 680 0.94 <100 bld 735 0.43 835 0.65 AR ES
MINELAB 413 -0.23 49 -2.12 4000 -0.64 1760 -0.52 3917 0.25 1550 -3.00 294 -3.00 20 0.85 262 -3.00 251 -3.00 ICP
MINELAB 407 -0.47 64 0.47 4080 -0.19 1840 0.35 3850 -0.14 1920 0.90 615 -0.77 22 1.69 706 -0.42 795 -0.19
MINELAB 383 -1.51 55 -1.06 4456 1.90 1893 0.92 4147 1.57 1975 1.51 720 1.98 24 2.35 790 2.04 897 1.96 AR ES
MINELAB 397 -0.93 58 -0.55 4165 0.28 1844 0.39 3959 0.49 1896 0.63 595 -1.29 19 0.48 668 -1.53 724 -1.69 AR MS
MINELAB 436 0.80 64 0.39 4135 0.11 1834 0.28 3929 0.32 1923 0.94 651 0.18 19 0.49 732 0.34 810 0.12 AR ES
MINELAB 444 1.16 66 0.86 4312 1.10 1938 1.42 3928 0.31 1929 1.01 626 -0.48 21 1.34 750 0.88 800 -0.09 AR ES
MINELAB 427 0.41 65 0.64 4283 0.93 1843 0.38 3997 0.71 1900 0.68 683 1.02 22 1.69 747 0.79 838 0.72 AR ES
MINELAB 437 0.86 73 1.96 4222 0.59 1828 0.22 4050 1.01 1929 1.01 709 1.69 86 3.00 746 0.74 861 1.20 AR ICP
MINELAB 363 -2.42 58 -0.52 4042 -0.40 1515 -3.00 3591 -1.62 1536 -3.00 598 -1.20 17 -0.44 667 -1.56 782 -0.46 AR AAS
MINELAB 446 1.24 bld bld 4151 0.20 1758 -0.55 3884 0.06 1796 -0.48 691 1.23 bld bld 746 0.76 815 0.23 AR AAS
MINELAB 415 -0.13 63 0.23 3893 -1.23 1726 -0.90 3618 -1.47 1822 -0.18 670 0.67 20 0.77 696 -0.71 817 0.27 3A AAS
MINELAB 446 1.24 60 -0.22 3832 -1.57 1827 0.21 3722 -0.87 1819 -0.22 668 0.62 17 -0.31 779 1.72 895 1.92 AR AAS
MINELAB 401 -0.76 52 -1.61 4127 0.07 1815 0.08 3495 -2.18 1695 -1.60 594 -1.32 15 -1.11 664 -1.65 645 -3.00 AR AAS
MINELAB 400 -0.78 62 0.19 4015 -0.55 1769 -0.43 3780 -0.54 1821 -0.20 569 -1.99 16 -0.67 683 -1.10 773 -0.65 AR AAS
MINELAB 465 2.06 127 3.00 4153 0.21 1727 -0.89 3867 -0.04 1778 -0.68 667 0.60 34 3.00 700 -0.59 810 0.12 AR AAS
Highlighted values are outliers which are assigned a z-score of -3.00 or 3.00 in the standardised values.
Method Reading
Alex Stewart International Argentina SA - Perito Moreno Report Page 25
Zinc Assay (Partial Digest) - Mean of Absolute Standardized Values - April 2019 Zinc Assay (Partial Digest) - Mean of Standardized Values - April 2019
Standard Deviations Standard Deviations
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
-3 -2 -1 0 1 2 30 1 2
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
Alex Stewart International Argentina SA - Perito Moreno ReportPage 26
Nickel (Total Digest) Round Robin - Summary Statistics, Assays, Standardised Values and Graphs - April 2019
Standard Reference GBM319-1 GBM319-2 GBM319-3 GBM319-4 GBM319-5 GBM319-6 GBM319-7 GBM319-8 GBM319-9 GBM319-10
MEAN (ppm) 80 109 25 17 443 225 8 57 45 6
STDEV (ppm) 5 9 2 2 22 12 1 4 4 2
95% CI (ppm) 1 2 1 1 6 3 0 1 1 0
95% CI (%) 1.78% 2.06% 2.51% 3.05% 1.26% 1.35% 4.76% 1.82% 2.12% 8.32% Nickel Assay (Total Digest) - Mean of Absolute Standardized Values - April 2019MIN (ppm) 67 90 20 12 388 201 5 46 36 2
MEDIAN (ppm) 81 109 25 18 443 225 8 57 44 6
MAX (ppm) 92 127 30 22 487 254 11 66 54 10
IQR (ppm) 6 12 3 2 32 17 1 6 4 2
COUNT 57 59 53 57 61 61 53 60 58 51
Standard Reference GBM319-1 GBM319-2 GBM319-3 GBM319-4 GBM319-5 GBM319-6 GBM319-7 GBM319-8 GBM319-9 GBM319-10
Lab Reference assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score
MAXXAM ONTARIO 90 1.84 120 1.28 30 1.94 <20 bld 460 0.79 240 1.28 <20 bld 60 0.76 50 1.38 <20 bld NAA
ASA MENDOZA 83 0.55 96 -1.47 27 0.66 17 -0.16 421 -0.99 207 -1.48 9 0.36 52 -1.21 44 -0.26 6 0.16 4A ES
COMLAB 78 -0.38 120 1.28 28 1.09 18 0.33 443 0.01 233 0.70 9 0.36 59 0.51 54 2.47 6 0.16 4A ICP
COMLAB 77 -0.56 114 0.60 34 3.00 21 1.82 460 0.79 227 0.20 7 -0.99 53 -0.96 50 1.38 6 0.16 4A ICP
COMLAB 79 -0.19 120 1.28 29 1.51 22 2.32 472 1.33 219 -0.47 8 -0.31 63 1.49 52 1.92 7 0.74 4A ICP
COMLAB 79 -0.19 115 0.71 21 -1.90 14 -1.65 445 0.10 232 0.61 2 -3.00 55 -0.47 39 -1.62 <2 bld 4A AAS
COMLAB 35 -3.00 58 -3.00 6 -3.00 6 -3.00 295 -3.00 133 -3.00 <5 bld 28 -3.00 21 -3.00 <5 bld 4A ICP
COMLAB 81 0.09 111 0.25 29 1.30 18 0.28 451 0.38 224 -0.06 9 0.64 58 0.27 46 0.29 7 0.95 4A ES
COMLAB 84 0.73 126 1.97 29 1.51 18 0.33 483 1.83 234 0.78 7 -0.99 52 -1.21 43 -0.53 3 -1.59 4A ES
COMLAB 79 -0.19 111 0.25 26 0.23 16 -0.66 438 -0.21 208 -1.39 8 -0.31 60 0.76 44 -0.26 4 -1.01 4A ES
COMLAB 87 1.28 107 -0.21 24 -0.62 17 -0.16 446 0.15 243 1.53 8 -0.31 56 -0.23 44 -0.26 7 0.74 4A ES
COMLAB 90 1.84 112 0.37 25 -0.19 17 -0.16 463 0.92 235 0.86 7 -0.99 52 -1.21 42 -0.81 2 -2.17 4A ES
COMLAB 87 1.28 110 0.14 29 1.51 18 0.33 472 1.33 243 1.53 11 1.71 60 0.76 48 0.83 8 1.32 4A ICP
COMLAB 80 -0.01 120 1.28 24 -0.62 16 -0.66 451 0.38 222 -0.22 5 -2.34 56 -0.23 42 -0.81 <1 bld 4A ES
COMLAB 60 -3.00 93 -1.81 12 -3.00 12 -2.64 435 -0.35 213 -0.98 9 0.36 51 -1.45 46 0.29 9 1.90 4A ES
COMLAB 83 0.55 115 0.71 26 0.23 19 0.83 443 0.01 233 0.70 8 -0.31 59 0.51 47 0.56 5 -0.43 4A ES
COMLAB 74 -1.11 109 0.02 23 -1.04 15 -1.15 433 -0.44 225 0.03 8 -0.31 54 -0.72 43 -0.53 7 0.74 4A ES
COMLAB 83 0.55 122 1.51 28 1.09 18 0.33 509 3.00 254 2.45 10 1.03 56 -0.23 42 -0.81 <1 bld 4A ES
COMLAB 78 -0.38 104 -0.55 22 -1.47 16 -0.66 436 -0.31 212 -1.06 1 -3.00 54 -0.72 42 -0.81 <1 bld 4A ES
COMLAB 86 1.10 127 2.09 30 1.94 18 0.33 459 0.74 235 0.86 8 -0.31 57 0.02 43 -0.53 10 2.48 4A ES
COMLAB 84 0.68 117 0.94 25 -0.32 17 -0.06 481 1.74 227 0.20 10 0.76 56 -0.35 46 0.18 5 -0.31 4A MS
COMLAB 81 0.25 99 -1.10 24 -0.58 16 -0.71 413 -1.37 238 1.12 7 -0.72 55 -0.55 41 -1.21 4 -0.77 5A ES
COMLAB 78 -0.39 108 -0.13 26 0.40 18 0.28 432 -0.47 227 0.21 9 0.29 55 -0.52 45 0.04 6 0.04 4A ICP
COMLAB 82 0.36 118 1.05 25 -0.19 18 0.33 487 2.02 252 2.29 8 -0.31 60 0.76 50 1.38 6 0.16 4A ES
COMLAB 80 -0.01 120 1.28 24 -0.62 14 -1.65 425 -0.81 225 0.03 bld bld 62 1.25 44 -0.26 bld bld 4A AAS
COMLAB 86 1.10 114 0.60 30 1.94 20 1.32 464 0.97 236 0.95 16 3.00 60 0.76 56 3.00 8 1.32 4A ES
COMLAB 77 -0.56 121 1.40 25 -0.19 17 -0.16 421 -0.99 229 0.36 8 -0.31 56 -0.23 43 -0.53 4 -1.01 4A ES
COMLAB 82 0.44 108 -0.09 24 -0.45 19 0.58 439 -0.17 230 0.45 9 0.23 59 0.46 45 -0.04 6 -0.02 4A ES
COMLAB 79 -0.19 108 -0.09 23 -1.04 17 -0.16 436 -0.31 222 -0.22 8 -0.31 54 -0.72 43 -0.53 5 -0.43 4A AAS
COMLAB 79 -0.19 115 0.71 23 -1.04 18 0.33 450 0.33 212 -1.06 8 -0.31 54 -0.72 42 -0.81 <5 bld 4A ICP
COMLAB 97 3.00 120 1.28 84 3.00 50 3.00 440 -0.12 234 0.78 27 3.00 64 1.74 56 3.00 13 3.00 4A ES
COMLAB 82 0.40 110 0.18 24 -0.75 17 -0.41 423 -0.90 225 0.04 8 -0.52 56 -0.30 41 -1.19 5 -0.72 4A ES
COMLAB 80 -0.01 108 -0.09 26 0.23 18 0.33 457 0.65 229 0.36 10 1.03 59 0.51 48 0.83 7 0.74 4A ES
COMLAB 82 0.40 107 -0.21 27 0.66 18 0.53 469 1.20 221 -0.31 10 1.17 60 0.81 45 -0.04 6 0.16 4A MS
COMLAB 72 -1.48 104 -0.55 20 -2.32 14 -1.65 451 0.38 228 0.28 5 -2.34 54 -0.72 43 -0.53 3 -1.59 4A ES
COMLAB 83 0.45 109 0.07 26 0.06 18 0.23 429 -0.64 246 1.74 9 0.23 57 0.07 46 0.29 6 -0.13 4A ES
COMLAB 83 0.55 115 0.71 25 -0.19 19 0.83 456 0.60 221 -0.31 10 1.03 62 1.25 45 0.01 6 0.16 4A ES
COMLAB 83 0.55 103 -0.67 26 0.23 18 0.33 446 0.15 225 0.03 10 1.03 58 0.27 45 0.01 5 -0.43 4A ICP
COMLAB 67 -2.33 94 -1.73 22 -1.64 15 -1.10 468 1.15 219 -0.45 6 -1.37 52 -1.14 40 -1.49 5 -0.47 4A ES
COMLAB 77 -0.50 96 -1.51 25 -0.41 18 0.38 428 -0.66 219 -0.52 8 -0.04 51 -1.38 43 -0.64 5 -0.48 4A
COMLAB 87 1.28 116 0.82 28 1.09 20 1.32 436 -0.31 229 0.36 11 1.71 60 0.76 46 0.29 5 -0.43 4A ES
COMLAB 69 -2.05 110 0.11 14 -3.00 14 -1.85 446 0.14 226 0.12 11 1.98 56 -0.18 47 0.42 5 -0.60 4A ICP
COMLAB 77 -0.56 105 -0.44 25 -0.19 18 0.33 464 0.97 229 0.36 7 -0.99 56 -0.23 44 -0.26 7 0.74 4A ICP
COMLAB 81 0.10 113 0.52 25 -0.32 21 1.97 421 -0.98 216 -0.71 10 0.97 66 2.31 52 1.81 5 -0.19 4A MS
COMLAB <500 bld <500 bld <500 bld <500 bld <500 bld <500 bld <500 bld <500 bld <500 bld <500 bld FUS
COMLAB 77 -0.56 106 -0.32 24 -0.62 17 -0.16 442 -0.03 215 -0.81 9 0.36 57 0.02 46 0.29 7 0.74 4A ES
COMLAB 78 -0.38 103 -0.67 25 -0.19 17 -0.16 413 -1.35 218 -0.56 6 -1.66 53 -0.96 44 -0.26 2 -2.17 4A ES
COMLAB 92 2.13 109 -0.03 25 -0.07 17 -0.14 403 -1.82 210 -1.26 10 1.25 60 0.64 47 0.69 6 0.43 FUS,4A ICP
COMLAB 81 0.18 94 -1.67 24 -0.49 16 -0.66 411 -1.42 209 -1.29 9 0.16 54 -0.84 41 -1.05 5 -0.31 4A ICP,AAS
COMLAB 72 -1.52 103 -0.71 23 -1.06 16 -0.67 420 -1.05 206 -1.58 7 -1.00 52 -1.25 43 -0.50 3 -1.59 4A AAS
COMLAB 90 1.84 97 -1.35 34 3.00 20 1.32 462 0.88 237 1.03 11 1.71 65 1.99 51 1.65 10 2.48 FUS ICP
COMLAB 73 -1.30 105 -0.44 27 0.66 16 -0.66 433 -0.44 201 -1.98 6 -1.66 57 0.02 43 -0.53 5 -0.43 4A AAS
COMLAB 98 3.00 110 0.14 29 1.51 20 1.32 427 -0.71 197 -2.31 10 1.03 58 0.27 44 -0.26 6 0.16 4A AAS
COMLAB 741 3.00 90 -2.11 28 0.90 21 1.97 419 -1.08 213 -0.98 9 0.29 54 -0.64 44 -0.37 6 0.33 4A MS
COMLAB 83 0.55 103 -0.67 28 1.09 16 -0.66 407 -1.62 238 1.12 8 -0.31 64 1.74 54 2.47 6 0.16 4A ES
COMLAB 70 -1.82 100 -1.05 24 -0.65 17 -0.06 388 -2.47 218 -0.54 11 1.61 53 -1.06 41 -0.97 9 1.75 4A ES
COMLAB 81 0.18 103 -0.67 24 -0.62 18 0.33 452 0.42 210 -1.23 8 -0.31 59 0.51 47 0.56 5 -0.43 4A ES
COMLAB 81 0.18 146 3.00 28 1.09 18 0.33 444 0.06 235 0.86 7 -0.99 66 2.23 51 1.65 5 -0.43 4A ES
COMLAB 77 -0.56 101 -0.89 15 -3.00 13 -2.15 453 0.47 221 -0.31 8 -0.31 58 0.27 45 0.01 5 -0.43 4A ES
COMLAB nr nr 100 -1.01 nr nr nr nr 441 -0.08 219 -0.47 nr nr nr nr nr nr nr nr 4A AAS
COMLAB 82 0.42 109 0.02 26 0.06 17 -0.11 474 1.42 212 -1.06 9 0.16 58 0.36 47 0.50 5 -0.35 4A MS
COMLAB 74 -1.11 111 0.25 24 -0.70 19 0.98 464 0.97 228 0.28 8 -0.31 57 0.02 43 -0.53 6 0.33 4A ES
MINELAB 156 3.00 193 3.00 141 3.00 122 3.00 471 1.30 281 3.00 113 3.00 154 3.00 143 3.00 111 3.00 4A ES
MINELAB 69 -2.09 82 -3.00 <20 bld <20 bld 410 -1.49 201 -1.98 <20 bld 46 -2.76 36 -2.52 <20 bld 3A,MICR ES
MINELAB 74 -1.20 96 -1.47 23 -0.92 18 0.13 406 -1.69 210 -1.23 9 0.56 54 -0.64 42 -0.70 6 0.04 4A MS
Highlighted values are outliers which are assigned a z-score of -3.00 or 3.00 in the standardised values.
Method Reading
Alex Stewart International Argentina SA - Perito Moreno Report Page 27
Nickel Assay (Total Digest) - Mean of Absolute Standardized Values - April 2019 Nickel Assay (Total Digest) - Mean of Standardized Values - April 2019
Standard Deviations Standard Deviations
MAXXAM ONTARIO
ASA MENDOZA
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
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COMLAB
COMLAB
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COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
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MINELAB
MINELAB
MINELAB
-3 -2 -1 0 1 2 30 1 2
MAXXAM ONTARIO
ASA MENDOZA
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
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COMLAB
COMLAB
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COMLAB
COMLAB
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COMLAB
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COMLAB
COMLAB
COMLAB
COMLAB
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COMLAB
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COMLAB
COMLAB
COMLAB
COMLAB
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COMLAB
COMLAB
COMLAB
COMLAB
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Alex Stewart International Argentina SA - Perito Moreno ReportPage 28
Nickel (Partial Digest) Round Robin - Summary Statistics, Assays, Standardised Values and Graphs - April 2019
Standard Reference GBM319-1 GBM319-2 GBM319-3 GBM319-4 GBM319-5 GBM319-6 GBM319-7 GBM319-8 GBM319-9 GBM319-10
MEAN (ppm) 58 98 10 10 437 214 8 49 43 5
STDEV (ppm) 4 9 1 1 24 15 2 4 3 2
95% CI (ppm) 1 2 0 0 6 4 0 1 1 1
95% CI (%) 1.93% 2.32% 3.45% 3.19% 1.42% 1.82% 6.31% 2.20% 1.73% 11.81% Nickel Assay (Partial Digest) - Mean of Absolute Standardized Values - April 2019MIN (ppm) 51 76 7 7 391 188 4 42 36 1
MEDIAN (ppm) 57 97 10 10 432 213 8 47 44 5
MAX (ppm) 69 120 13 12 496 254 12 58 50 10
IQR (ppm) 7 11 2 1 33 19 2 6 3 2
COUNT 58 61 54 51 58 61 51 56 53 50
Standard Reference GBM319-1 GBM319-2 GBM319-3 GBM319-4 GBM319-5 GBM319-6 GBM319-7 GBM319-8 GBM319-9 GBM319-10
Lab Reference assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score
COMLAB 53 -1.19 99 0.15 9 -0.88 10 0.43 419 -0.74 198 -1.04 7 -0.39 46 -0.62 42 -0.48 9 2.13 AR ICP
COMLAB 55 -0.73 92 -0.63 12 1.43 9 -0.49 434 -0.12 227 0.84 8 0.18 50 0.37 43 -0.11 5 0.13 AR ICP
COMLAB 55 -0.73 93 -0.51 9 -0.88 8 -1.40 452 0.63 234 1.30 <2 -3.00 49 0.12 40 -1.20 <2 bld AR AAS
COMLAB 66 1.82 119 2.39 13 2.19 18 3.00 557 3.00 254 2.59 10 1.33 55 1.61 50 2.43 10 2.63 AR ES
COMLAB 55 -0.73 101 0.38 9 -0.88 9 -0.49 431 -0.24 216 0.13 8 0.18 46 -0.62 42 -0.48 6 0.63 AR ES
COMLAB 55 -0.73 98 0.04 9 -0.88 8 -1.40 420 -0.70 210 -0.26 7 -0.39 46 -0.62 44 0.25 4 -0.37 AR ES
COMLAB 56 -0.49 109 1.27 11 0.66 11 1.34 446 0.38 219 0.32 11 1.90 48 -0.12 46 0.98 8 1.63 AR ICP
COMLAB 58 -0.03 96 -0.18 10 -0.11 9 -0.49 425 -0.49 199 -0.98 4 -2.11 46 -0.62 42 -0.48 <1 bld AR ES
COMLAB 59 0.20 92 -0.63 10 -0.11 10 0.43 422 -0.62 203 -0.72 7 -0.39 44 -1.12 42 -0.48 5 0.13 AR ES
COMLAB 61 0.66 93 -0.51 9 -0.88 8 -1.40 455 0.76 209 -0.33 7 -0.39 47 -0.37 44 0.25 4 -0.37 AR ES
COMLAB 56 -0.49 96 -0.18 11 0.66 10 0.43 429 -0.33 198 -1.04 9 0.75 47 -0.37 43 -0.11 5 0.13 AR ES
COMLAB 59 0.20 104 0.71 8 -1.65 10 0.43 453 0.68 213 -0.07 6 -0.96 49 0.12 43 -0.11 3 -0.87 AR AAS
COMLAB 55 -0.73 96 -0.18 7 -2.42 7 -2.31 439 0.09 202 -0.78 2 -3.00 43 -1.36 40 -1.20 <1 bld AR ES
COMLAB 56 -0.61 88 -1.12 9 -0.88 9 -0.85 416 -0.87 192 -1.46 8 -0.05 46 -0.74 41 -0.69 5 -0.12 AR MS
COMLAB 54 -0.89 86 -1.29 10 -0.04 10 0.24 398 -1.61 203 -0.69 8 0.18 44 -1.04 30 -3.00 5 0.33 AR ES
COMLAB 60 0.48 97 -0.10 11 0.27 10 0.24 454 0.70 221 0.42 9 0.81 53 1.04 48 1.56 5 0.13 AR ICP
COMLAB 57 -0.26 95 -0.29 10 -0.11 9 -0.49 452 0.63 207 -0.46 7 -0.39 47 -0.37 45 0.62 3 -0.87 AR ES
COMLAB 55 -0.73 100 0.27 9 -0.88 9 -0.49 408 -1.20 189 -1.63 7 -0.39 46 -0.62 41 -0.84 1 -1.87 AR ES
COMLAB 78 3.00 120 2.50 24 3.00 20 3.00 434 -0.12 248 2.21 16 3.00 58 2.35 44 0.25 4 -0.37 AR ICP
COMLAB 60 0.43 97 -0.07 10 -0.11 10 0.43 450 0.55 220 0.39 8 0.18 52 0.87 45 0.62 3 -0.87 AR ES
COMLAB <100 bld 111 1.48 <100 bld <100 bld 396 -1.69 193 -1.34 <100 bld <100 bld <100 bld <100 bld AR ES
COMLAB 57 -0.26 99 0.10 11 0.73 10 0.15 425 -0.48 210 -0.29 9 0.87 48 -0.12 46 0.94 6 0.73 AR ES
COMLAB 51 -1.76 83 -1.66 9 -0.79 8 -1.25 410 -1.13 220 0.39 5 -1.82 44 -1.09 38 -2.04 5 0.08 AR ES
COMLAB 59 0.20 100 0.27 10 -0.11 11 1.34 454 0.72 226 0.78 7 -0.39 52 0.87 45 0.62 5 0.13 AR ES
COMLAB 59 0.15 76 -2.42 8 -1.34 8 -1.49 393 -1.83 197 -1.11 8 -0.05 47 -0.37 36 -2.51 4 -0.32 AR MS
COMLAB 69 2.53 100 0.21 23 3.00 19 3.00 415 -0.91 209 -0.33 <10 bld nr nr 41 -0.91 <10 bld 3A ICP
COMLAB 57 -0.26 93 -0.51 10 -0.11 9 -0.49 433 -0.16 211 -0.20 9 0.75 47 -0.37 44 0.25 7 1.13 AR ES
COMLAB 83 3.00 117 2.16 31 3.00 27 3.00 467 1.26 233 1.23 32 3.00 67 3.00 71 3.00 25 3.00 AR AAS
COMLAB 62 0.89 103 0.60 13 2.19 12 2.25 562 3.00 211 -0.20 13 3.00 52 0.87 46 0.98 14 3.00 AR AAS
COMLAB 58 -0.03 97 -0.07 10 -0.11 10 0.43 427 -0.41 222 0.52 7 -0.39 45 -0.87 44 0.25 2 -1.37 AR ES
COMLAB 65 1.59 105 0.82 12 1.43 10 0.43 495 2.43 222 0.52 8 0.18 53 1.11 43 -0.11 5 0.13 3A ICP
COMLAB 57 -0.29 86 -1.26 10 -0.04 9 -0.40 425 -0.49 205 -0.56 9 0.81 47 -0.32 45 0.65 5 0.23 AR ICP,AAS
COMLAB 62 0.87 99 0.19 10 -0.11 10 0.06 468 1.30 215 0.06 7 -0.22 55 1.54 46 0.94 3 -0.92 AR ES
COMLAB 55 -0.84 83 -1.60 11 0.27 11 0.88 423 -0.59 211 -0.19 4 -2.34 48 -0.10 40 -1.17 <0.1 bld AR AAS
COMLAB 63 1.12 85 -1.41 10 -0.11 9 -0.49 420 -0.70 200 -0.91 7 -0.39 46 -0.62 44 0.25 5 0.13 AR AAS
COMLAB 61 0.66 98 0.04 11 0.66 10 0.43 443 0.26 210 -0.26 7 -0.39 47 -0.37 45 0.62 2 -1.37 AR ES
COMLAB 57 -0.26 83 -1.63 11 0.66 10 0.43 430 -0.28 209 -0.33 9 0.75 47 -0.37 42 -0.48 5 0.13 AR MS
COMLAB 58 -0.03 103 0.60 10 -0.11 9 -0.49 426 -0.45 226 0.78 6 -0.96 46 -0.62 44 0.25 3 -0.87 AR ES
COMLAB 55 -0.75 89 -0.94 9 -0.70 9 -0.60 433 -0.17 223 0.57 10 1.58 47 -0.40 45 0.79 7 1.15 AR ES
COMLAB 59 0.08 90 -0.85 11 0.89 12 1.88 473 1.51 231 1.13 8 0.07 51 0.72 41 -0.84 4 -0.32 2A ES
COMLAB 62 0.89 92 -0.63 8 -1.65 8 -1.40 470 1.38 217 0.19 5 -1.53 45 -0.87 42 -0.48 5 0.13 AR ES
COMLAB 64 1.35 104 0.71 13 2.19 12 2.25 511 3.00 222 0.52 10 1.33 62 3.00 48 1.71 7 1.13 3A ICP
COMLAB 54 -0.96 92 -0.63 10 -0.11 10 0.43 409 -1.16 191 -1.50 12 2.47 52 0.87 44 0.25 8 1.63 3A AAS
COMLAB 51 -1.65 97 -0.07 2 -3.00 nr nr 465 1.18 217 0.19 nr nr 46 -0.62 40 -1.20 nr nr AR AAS
COMLAB 58 -0.12 109 1.27 10 -0.25 9 -0.31 448 0.47 194 -1.30 8 0.46 48 -0.12 43 -0.18 5 0.16 AR MS
COMLAB 52 -1.42 94 -0.40 <10 bld <10 bld 391 -1.91 188 -1.69 <10 bld 42 -1.61 35 -3.00 <10 bld AR AAS
COMLAB 56 -0.49 93 -0.51 10 -0.11 10 0.43 453 0.68 230 1.04 5 -1.53 48 -0.12 44 0.25 3 -0.87 AD AAS
MINELAB 55 -0.73 98 0.04 8 -1.65 7 -2.31 426 -0.45 198 -1.04 6 -0.96 45 -0.87 42 -0.48 2 -1.37 AR ES
MINELAB 52 -1.51 115 1.90 18 3.00 33 3.00 416 -0.86 192 -1.41 48 3.00 76 3.00 59 3.00 45 3.00 AR AAS
MINELAB 62 0.89 92 -0.63 12 1.43 10 0.43 437 0.01 217 0.19 9 0.75 51 0.62 45 0.62 1 -1.87 3A ES
MINELAB 56 -0.49 94 -0.40 9 -0.56 15 3.00 427 -0.41 198 -1.04 8 0.08 46 -0.62 42 -0.48 7 0.93 AR ES
MINELAB 12 -3.00 63 -3.00 <0.001 -3.00 <0.001 -3.00 425 -0.48 283 3.00 <0.001 -3.00 33 -3.00 <0.001 -3.00 <0.001 bld 3A ES
MINELAB 4 -3.00 7 -3.00 1 -3.00 1 -3.00 315 -3.00 65 -3.00 1 -3.00 4 -3.00 3 -3.00 1 -2.09 AR ICP
MINELAB <100 bld 106 0.94 <100 bld <100 bld 432 -0.20 205 -0.59 <100 bld <100 bld <100 bld <100 bld AR ES
MINELAB 64 1.42 89 -0.97 12 1.35 9 -0.12 458 0.86 201 -0.84 7 -0.28 42 -1.71 28 -3.00 4 -0.57 ICP
MINELAB 53 -1.19 105 0.82 10 -0.11 10 0.43 410 -1.12 208 -0.39 4 -2.11 54 1.36 41 -0.84 1 -1.87
MINELAB 66 1.70 107 1.00 11 0.87 10 0.81 561 3.00 251 2.41 8 0.04 57 2.07 54 3.00 5 0.16 AR ES
MINELAB 59 0.09 101 0.38 11 0.46 10 0.11 475 1.58 218 0.28 8 0.24 49 0.04 45 0.65 nr nr AR MS
MINELAB 53 -1.25 103 0.62 11 0.37 10 0.06 474 1.54 215 0.05 8 0.41 44 -1.06 38 -1.82 5 -0.06 AR ES
MINELAB 63 1.23 99 0.13 9 -0.53 10 0.74 436 -0.02 222 0.53 7 -0.35 54 1.37 49 1.90 5 0.01 3A ES
MINELAB 62 0.89 107 1.05 10 -0.11 10 0.43 473 1.51 216 0.13 9 0.75 52 0.87 46 0.98 7 1.13 AR ES
MINELAB 67 2.07 113 1.67 12 1.53 11 1.63 496 2.49 250 2.34 9 0.92 58 2.27 52 3.00 5 0.20 AR ICP
MINELAB 58 -0.03 94 -0.40 11 0.66 13 3.00 416 -0.87 224 0.65 8 0.18 52 0.87 44 0.25 6 0.63 AR AAS
MINELAB 55 -0.73 95 -0.29 9 -0.88 9 -0.21 404 -1.36 204 -0.66 7 -0.39 42 -1.61 40 -1.31 5 -0.07 AR MS
MINELAB 65 1.61 96 -0.22 10 -0.04 9 -0.17 440 0.14 235 1.33 9 0.99 53 1.17 48 1.53 6 0.58 AR ICP
Highlighted values are outliers which are assigned a z-score of -3.00 or 3.00 in the standardised values.
Method Reading
Alex Stewart International Argentina SA - Perito Moreno Report Page 29
Nickel Assay (Partial Digest) - Mean of Absolute Standardized Values - April 2019 Nickel Assay (Partial Digest) - Mean of Standardized Values - April 2019
Standard Deviations Standard Deviations
COMLAB
COMLAB
COMLAB
COMLAB
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COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
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COMLAB
COMLAB
COMLAB
COMLAB
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COMLAB
COMLAB
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COMLAB
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COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
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COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
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MINELAB
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MINELAB
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MINELAB
-3 -2 -1 0 1 2 30 1 2
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
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COMLAB
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COMLAB
COMLAB
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COMLAB
COMLAB
COMLAB
COMLAB
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Alex Stewart International Argentina SA - Perito Moreno ReportPage 30
Arsenic (Total Digest) Round Robin - Summary Statistics, Assays, Standardised Values and Graphs - April 2019
Standard Reference GBM319-1 GBM319-2 GBM319-3 GBM319-4 GBM319-5 GBM319-6 GBM319-7 GBM319-8 GBM319-9 GBM319-10
MEAN (ppm) 52 65 887 390 805 375 1241 115 273 2196
STDEV (ppm) 3 5 55 26 38 17 56 10 15 124
95% CI (ppm) 1 1 15 7 10 5 15 3 4 32
95% CI (%) 1.88% 2.30% 1.67% 1.79% 1.24% 1.29% 1.21% 2.41% 1.44% 1.47% Arsenic Assay (Total Digest) - Mean of Absolute Standardized Values - April 2019MIN (ppm) 45 53 767 323 701 330 1100 91 234 1876
MEDIAN (ppm) 52 65 882 388 813 375 1250 116 271 2195
MAX (ppm) 59 79 997 455 882 421 1350 140 309 2430
IQR (ppm) 5 7 62 33 47 21 72 12 16 153
COUNT 45 48 54 56 58 51 54 53 59 58
Standard Reference GBM319-1 GBM319-2 GBM319-3 GBM319-4 GBM319-5 GBM319-6 GBM319-7 GBM319-8 GBM319-9 GBM319-10
Lab Reference assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score
MAXXAM ONTARIO 56 0.95 65 -0.08 882 -0.09 383 -0.25 812 0.18 375 0.02 1250 0.16 114 -0.09 271 -0.11 2145 -0.41 NAA
ASA MENDOZA 50 -0.70 59 -1.13 784 -1.88 375 -0.56 783 -0.57 347 -1.58 1264 0.41 112 -0.29 269 -0.24 2200 0.03 4A ES
COMLAB 55 0.65 62 -0.48 802 -1.55 360 -1.13 757 -1.25 355 -1.13 1120 -2.18 118 0.30 271 -0.11 1930 -2.14 NAA
COMLAB 11 -3.00 43 -3.00 1110 3.00 405 0.58 766 -1.02 262 -3.00 1350 1.95 92 -2.25 304 2.06 2400 1.64 4A ICP
COMLAB 48 -1.30 48 -3.00 898 0.20 426 1.38 774 -0.81 319 -3.00 1100 -2.54 54 -3.00 282 0.61 2430 1.88 4A ICP
COMLAB 51 -0.40 61 -0.75 810 -1.40 375 -0.56 775 -0.78 385 0.60 1225 -0.29 110 -0.48 270 -0.17 2282 0.69 4A AAS
COMLAB 32 -3.00 40 -3.00 608 -3.00 274 -3.00 539 -3.00 244 -3.00 419 -3.00 61 -3.00 121 -3.00 915 -3.00 4A ICP
COMLAB 47 -1.63 64 -0.19 868 -0.35 390 0.01 793 -0.31 360 -0.84 1221 -0.37 103 -1.17 264 -0.57 2097 -0.80 4A ES
COMLAB 51 -0.40 63 -0.36 881 -0.11 385 -0.18 825 0.52 383 0.48 1270 0.51 113 -0.19 265 -0.50 2230 0.27 4A ES
COMLAB 53 0.20 65 0.02 955 1.23 419 1.11 839 0.89 368 -0.38 1300 1.05 132 1.68 282 0.61 2260 0.51 4A ES
COMLAB 56 1.10 57 -1.51 858 -0.53 354 -1.35 794 -0.29 369 -0.32 1240 -0.02 121 0.60 271 -0.11 2220 0.19 4A ES
COMLAB 51 -0.40 67 0.40 886 -0.02 417 1.04 824 0.50 376 0.08 1280 0.69 118 0.30 278 0.35 2330 1.08 4A ES
COMLAB 59 2.01 75 1.94 936 0.89 414 0.92 860 1.43 368 -0.38 1295 0.96 127 1.19 295 1.47 2430 1.88 4A ICP
COMLAB 52 -0.10 69 0.79 912 0.45 415 0.96 823 0.47 396 1.23 1290 0.87 125 0.99 285 0.81 2300 0.84 4A ES
COMLAB 55 0.80 70 0.98 935 0.87 375 -0.56 855 1.30 390 0.89 1310 1.23 105 -0.97 270 -0.17 2405 1.68 4A ES
COMLAB 49 -1.00 63 -0.36 867 -0.37 425 1.34 811 0.16 347 -1.58 1260 0.34 120 0.50 271 -0.11 2220 0.19 4A ES
COMLAB 51 -0.40 65 0.02 926 0.71 373 -0.63 784 -0.55 363 -0.67 1271 0.53 116 0.11 271 -0.11 2170 -0.21 4A ES
COMLAB 48 -1.30 72 1.36 847 -0.73 386 -0.14 791 -0.37 390 0.89 1280 0.69 123 0.79 280 0.48 2260 0.51 4A ES
COMLAB 50 -0.70 69 0.79 954 1.21 378 -0.44 793 -0.31 367 -0.44 1210 -0.56 122 0.69 275 0.15 2180 -0.13 4A ES
COMLAB 56 1.10 79 2.71 975 1.60 379 -0.40 837 0.83 385 0.60 1250 0.16 121 0.60 276 0.22 2200 0.03 4A ES
COMLAB 57 1.37 68 0.54 925 0.69 409 0.73 814 0.23 359 -0.90 1295 0.96 125 0.94 281 0.55 2200 0.03 4A MS
COMLAB 32 -3.00 67 0.37 634 -3.00 348 -1.57 838 0.87 387 0.70 1303 1.11 116 0.08 274 0.11 2269 0.59 4A ICP
COMLAB 57 1.40 62 -0.55 774 -2.06 348 -1.58 813 0.21 389 0.83 1280 0.69 122 0.69 284 0.75 2360 1.32 4A MS
COMLAB 77 3.00 84 3.00 965 1.42 425 1.34 882 2.01 421 2.67 >1000 ald 123 0.79 309 2.39 >1000 ald 4A AAS
COMLAB 67 3.00 99 3.00 985 1.78 399 0.35 859 1.41 398 1.35 1174 -1.21 153 3.00 322 3.00 2301 0.84 4A AAS
COMLAB 53 0.20 66 0.21 870 -0.31 375 -0.56 825 0.52 385 0.60 1250 0.16 115 0.01 277 0.29 2220 0.19 4A MS
COMLAB 55 0.80 75 1.94 861 -0.48 366 -0.90 822 0.44 378 0.20 1258 0.30 116 0.11 257 -1.03 2258 0.50 4A ES
COMLAB 64 3.00 82 3.00 876 -0.20 406 0.62 778 -0.70 391 0.94 1181 -1.08 140 2.46 280 0.48 2086 -0.89 4A ES
COMLAB 55 0.80 70 0.98 909 0.40 393 0.13 788 -0.44 373 -0.09 1238 -0.06 119 0.40 271 -0.11 2205 0.07 4A AAS
COMLAB 48 -1.30 67 0.40 823 -1.17 377 -0.48 822 0.44 374 -0.03 1210 -0.56 107 -0.78 241 -2.08 2070 -1.01 4A ICP
COMLAB <50 bld <50 bld <50 -3.00 <50 -3.00 <50 -3.00 <50 -3.00 50 -3.00 <50 -3.00 275 0.15 2180 -0.13 4A ES
COMLAB 51 -0.31 63 -0.34 867 -0.36 408 0.71 782 -0.61 368 -0.39 1206 -0.64 112 -0.26 276 0.21 2247 0.41 4A ES
COMLAB 52 -0.10 63 -0.36 934 0.85 396 0.24 816 0.29 382 0.43 1261 0.35 117 0.20 270 -0.17 2135 -0.49 4A MS
COMLAB 55 0.80 63 -0.36 871 -0.29 389 -0.02 805 0.00 370 -0.26 1300 1.05 119 0.40 267 -0.37 2220 0.19 4A MS
COMLAB 56 1.10 60 -0.94 872 -0.28 396 0.24 811 0.16 367 -0.44 1209 -0.58 103 -1.17 252 -1.36 2101 -0.76 4A ES
COMLAB 53 0.32 61 -0.77 891 0.06 390 0.03 816 0.27 451 3.00 1213 -0.51 117 0.19 268 -0.29 2102 -0.76 4A MS
COMLAB 56 1.10 62 -0.55 869 -0.33 369 -0.78 767 -0.99 366 -0.49 1240 -0.02 114 -0.09 254 -1.22 2140 -0.45 4A MS
COMLAB 53 0.20 65 0.02 960 1.32 411 0.81 837 0.83 405 1.75 1411 3.00 126 1.09 290 1.14 2326 1.05 4A ICP
COMLAB 45 -2.23 53 -2.20 842 -0.83 348 -1.58 739 -1.73 361 -0.80 1163 -1.41 100 -1.49 243 -1.98 2058 -1.11 4A ES
COMLAB 63 3.00 68 0.67 1215 3.00 435 1.72 826 0.54 381 0.39 1282 0.73 118 0.32 272 -0.03 2123 -0.59 4A
COMLAB 25 -3.00 57 -1.51 879 -0.15 287 -3.00 790 -0.39 330 -2.56 1231 -0.19 117 0.20 269 -0.24 2190 -0.05 4A ES
COMLAB 50 -0.70 65 0.02 873 -0.26 406 0.62 813 0.21 405 1.75 1291 0.89 71 -3.00 282 0.61 2114 -0.66 4A ICP
COMLAB 51 -0.49 67 0.35 922 0.63 403 0.51 833 0.73 375 0.02 1220 -0.38 99 -1.56 260 -0.83 2168 -0.23 4A ICP
COMLAB 55 0.74 60 -0.98 835 -0.96 377 -0.49 769 -0.94 370 -0.25 1326 1.52 134 1.88 261 -0.75 2136 -0.48 4A MS
COMLAB 51 -0.40 62 -0.55 899 0.21 397 0.28 829 0.63 378 0.20 1233 -0.15 115 0.01 268 -0.31 2163 -0.27 4A ES
COMLAB 51 -0.40 70 0.98 832 -1.00 374 -0.59 740 -1.70 342 -1.87 1229 -0.22 117 0.20 272 -0.04 2093 -0.83 4A ES
COMLAB 47 -1.64 60 -0.99 916 0.52 407 0.64 839 0.89 364 -0.62 1255 0.24 111 -0.34 262 -0.71 2131 -0.52 4A ICP
COMLAB 68 3.00 71 1.17 903 0.29 387 -0.10 768 -0.96 375 0.02 1178 -1.14 110 -0.48 250 -1.49 2032 -1.32 4A ICP
COMLAB 51 -0.40 57 -1.51 854 -0.60 360 -1.13 816 0.29 379 0.25 1274 0.59 122 0.69 287 0.94 2309 0.91 FUS MS
COMLAB 54 0.50 67 0.40 958 1.29 455 2.48 878 1.90 427 3.00 1304 1.13 127 1.19 305 2.12 2397 1.62 4A AAS
COMLAB 58 1.70 72 1.36 910 0.41 375 -0.56 767 -0.99 357 -1.01 1230 -0.20 109 -0.58 292 1.27 2140 -0.45 4A AAS
COMLAB 53 0.18 60 -0.86 874 -0.25 406 0.63 777 -0.73 375 0.04 1147 -1.70 108 -0.65 271 -0.13 2114 -0.66 4A MS
COMLAB 55 0.80 70 0.98 997 2.00 414 0.92 874 1.80 395 1.17 1330 1.59 65 -3.00 289 1.07 2380 1.48 4A ES
COMLAB 48 -1.30 58 -1.30 768 -2.17 360 -1.14 800 -0.12 352 -1.29 1183 -1.05 97 -1.74 258 -0.97 2107 -0.72 4A ES
COMLAB 58 1.70 63 -0.36 919 0.58 386 -0.14 756 -1.28 386 0.66 1153 -1.59 122 0.69 287 0.94 2051 -1.17 4A ES
COMLAB 48 -1.30 82 3.00 913 0.47 358 -1.20 823 0.47 361 -0.78 1137 -1.87 103 -1.17 275 0.15 2064 -1.06 4A ES
MINELAB 86 3.00 122 3.00 901 0.26 447 2.16 863 1.52 431 3.00 1290 0.87 112 -0.30 305 2.10 2183 -0.10 4A
MINELAB 36 -3.00 45 -3.00 960 1.33 269 -3.00 723 -2.14 314 -3.00 746 -3.00 91 -2.38 283 0.66 1782 -3.00 4A ES
MINELAB 41 -3.00 45 -3.00 767 -2.19 323 -2.53 701 -2.71 316 -3.00 1050 -3.00 98 -1.69 234 -2.54 1876 -2.58 3A,MICR ES
MINELAB 68 3.00 70 0.98 1068 3.00 371 -0.73 813 0.22 390 0.89 1219 -0.41 107 -0.78 264 -0.57 2246 0.40 4A AAS
MINELAB <100 bld <100 bld 869 -0.32 368 -0.80 750 -1.45 347 -1.57 1186 -1.00 <100 bld 245 -1.80 1930 -2.14 FUS ICP
MINELAB <100 bld <100 bld 332 -3.00 205 -3.00 617 -3.00 271 -3.00 1452 3.00 171 3.00 269 -0.23 2395 1.60 4A AAS
Highlighted values are outliers which are assigned a z-score of -3.00 or 3.00 in the standardised values.
Method Reading
Alex Stewart International Argentina SA - Perito Moreno Report Page 31
Arsenic Assay (Total Digest) - Mean of Absolute Standardized Values - April 2019 Arsenic Assay (Total Digest) - Mean of Standardized Values - April 2019
Standard Deviations Standard Deviations
MAXXAM ONTARIO
ASA MENDOZA
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
-3 -2 -1 0 1 2 30 1 2
MAXXAM ONTARIO
ASA MENDOZA
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
Alex Stewart International Argentina SA - Perito Moreno ReportPage 32
Arsenic (Partial Digest) Round Robin - Summary Statistics, Assays, Standardised Values and Graphs - April 2019
Standard Reference GBM319-1 GBM319-2 GBM319-3 GBM319-4 GBM319-5 GBM319-6 GBM319-7 GBM319-8 GBM319-9 GBM319-10
MEAN (ppm) 53 64 902 389 802 375 1211 103 262 2135
STDEV (ppm) 5 5 47 27 46 18 67 6 14 119
95% CI (ppm) 1 1 12 7 11 5 17 2 4 31
95% CI (%) 2.45% 2.20% 1.35% 1.71% 1.43% 1.28% 1.44% 1.50% 1.47% 1.44% Arsenic Assay (Partial Digest) - Mean of Absolute Standardized Values - April 2019MIN (ppm) 44 50 791 330 693 334 1070 91 227 1821
MEDIAN (ppm) 52 63 899 392 804 373 1217 102 266 2149
MAX (ppm) 65 77 1014 460 920 425 1395 115 293 2388
IQR (ppm) 6 7 50 35 51 25 83 7 15 139
COUNT 54 59 58 62 62 58 58 55 54 59
Standard Reference GBM319-1 GBM319-2 GBM319-3 GBM319-4 GBM319-5 GBM319-6 GBM319-7 GBM319-8 GBM319-9 GBM319-10
Lab Reference assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score
COMLAB 52 -0.22 68 0.76 959 1.20 431 1.60 863 1.33 387 0.67 1170 -0.62 98 -0.78 270 0.57 2120 -0.13 AR ICP
COMLAB 52 -0.22 59 -0.89 919 0.35 412 0.88 831 0.63 367 -0.41 1230 0.28 94 -1.47 266 0.29 2060 -0.63 AR ICP
COMLAB 54 0.19 63 -0.16 894 -0.18 375 -0.51 810 0.17 385 0.56 1309 1.45 101 -0.26 269 0.50 2285 1.25 AR AAS
COMLAB 58 1.02 75 2.04 930 0.59 404 0.58 825 0.50 377 0.13 1201 -0.16 110 1.29 270 0.57 2246 0.93 AR ES
COMLAB 48 -1.05 63 -0.16 885 -0.37 380 -0.32 809 0.15 389 0.78 1150 -0.92 100 -0.44 258 -0.27 2190 0.46 AR ES
COMLAB 53 -0.01 68 0.76 981 1.67 381 -0.29 818 0.34 367 -0.41 1230 0.28 105 0.43 268 0.43 2170 0.29 AR ES
COMLAB 57 0.81 75 2.04 899 -0.07 428 1.49 829 0.58 386 0.62 1250 0.57 108 0.95 272 0.71 2320 1.55 AR ICP
COMLAB 58 1.02 64 0.03 945 0.91 411 0.84 803 0.01 383 0.45 1260 0.72 107 0.78 277 1.06 2160 0.21 AR ES
COMLAB 51 -0.43 62 -0.34 885 -0.37 396 0.28 787 -0.34 366 -0.47 1186 -0.38 104 0.26 256 -0.41 2098 -0.31 AR ES
COMLAB 56 0.61 63 -0.16 877 -0.54 403 0.54 840 0.82 375 0.02 1180 -0.47 105 0.43 260 -0.13 2150 0.12 AR ES
COMLAB 51 -0.43 63 -0.16 896 -0.13 392 0.13 789 -0.29 358 -0.90 1180 -0.47 101 -0.26 259 -0.20 2110 -0.21 AR ES
COMLAB 54 0.19 67 0.58 932 0.63 389 0.02 802 -0.01 381 0.35 1220 0.13 115 2.16 269 0.50 2170 0.29 AR ES
COMLAB 53 -0.04 69 0.93 884 -0.39 370 -0.70 801 -0.03 362 -0.68 1225 0.20 111 1.47 258 -0.27 2180 0.37 AR MS
COMLAB 58 0.96 65 0.23 842 -1.29 392 0.11 768 -0.75 373 -0.09 1163 -0.72 107 0.81 154 -3.00 1477 -3.00 AR ES
COMLAB 52 -0.18 60 -0.74 899 -0.07 355 -1.26 779 -0.51 368 -0.37 1225 0.20 100 -0.52 272 0.68 2271 1.14 AR ICP
COMLAB 45 -1.67 60 -0.71 898 -0.09 375 -0.51 771 -0.69 373 -0.09 1179 -0.48 102 -0.09 248 -0.97 2059 -0.64 AR ES
COMLAB 52 -0.22 66 0.39 920 0.38 382 -0.25 778 -0.53 363 -0.63 1190 -0.32 102 -0.09 251 -0.76 2042 -0.78 AR ES
COMLAB 65 2.47 72 1.49 980 1.65 432 1.64 891 1.94 425 2.73 1270 0.87 135 3.00 292 2.10 2370 1.97 AR ICP
COMLAB 92 3.00 77 2.41 941 0.82 394 0.20 870 1.48 403 1.54 1275 0.95 98 -0.78 270 0.57 2325 1.59 AR AAS
COMLAB 56 0.61 66 0.39 1014 2.37 460 2.69 856 1.18 396 1.16 1277 0.98 107 0.78 282 1.40 2240 0.88 AR ES
COMLAB 55 0.40 65 0.21 914 0.25 403 0.54 807 0.10 386 0.62 1285 1.10 106 0.60 267 0.36 2202 0.56 AR AAS
COMLAB <100 bld <100 bld 886 -0.36 431 1.61 792 -0.22 370 -0.26 1119 -1.38 <100 bld 248 -0.98 1726 -3.00 AR ES
COMLAB 52 -0.22 64 0.03 901 -0.03 401 0.47 799 -0.07 372 -0.14 1215 0.05 99 -0.61 268 0.43 2098 -0.31 AR MS
COMLAB 47 -1.28 54 -1.81 898 -0.09 360 -1.09 747 -1.21 365 -0.53 1164 -0.71 95 -1.30 248 -0.97 2047 -0.74 AR ES
COMLAB 62 1.85 70 1.13 874 -0.60 348 -1.53 827 0.54 387 0.67 1202 -0.14 108 0.95 268 0.43 2201 0.55 AR ES
COMLAB 64 2.18 58 -1.07 923 0.44 406 0.65 835 0.70 401 1.44 1275 0.95 110 1.24 263 0.05 2248 0.95 AR MS
COMLAB 52 -0.22 63 -0.16 891 -0.24 397 0.32 819 0.36 372 -0.14 1230 0.28 102 -0.09 262 0.01 2161 0.21 AR ES
COMLAB 45 -1.67 72 1.49 839 -1.35 376 -0.47 782 -0.45 353 -1.17 1126 -1.27 101 -0.26 261 -0.06 2063 -0.61 AR ES
COMLAB 52 -0.22 63 -0.16 923 0.44 416 1.03 829 0.58 375 0.02 766 -3.00 103 0.08 182 -3.00 1322 -3.00 1A ICP
COMLAB 60 1.43 63 -0.16 825 -1.64 330 -2.21 797 -0.12 367 -0.41 1187 -0.36 98 -0.78 259 -0.20 2107 -0.24 AR ICP
COMLAB 48 -1.05 60 -0.71 822 -1.71 371 -0.66 742 -1.32 344 -1.66 1070 -2.11 84 -3.00 248 -0.97 1960 -1.47 AR MS
COMLAB 59 1.23 65 0.21 812 -1.92 362 -1.00 734 -1.50 345 -1.60 1076 -2.02 100 -0.44 232 -2.09 1943 -1.61 AR AAS
COMLAB <50 bld 64 0.03 880 -0.47 374 -0.55 783 -0.42 367 -0.41 1136 -1.12 103 0.08 271 0.64 1932 -1.71 AR AAS
COMLAB 52 -0.22 67 0.58 895 -0.16 394 0.20 805 0.06 361 -0.74 1130 -1.21 107 0.78 255 -0.48 1970 -1.39 AR MS
COMLAB 54 0.19 56 -1.44 893 -0.20 378 -0.40 775 -0.60 399 1.32 1180 -0.47 106 0.60 255 -0.48 2200 0.54 AR MS
COMLAB 57 0.81 88 3.00 898 -0.09 393 0.17 864 1.35 370 -0.25 1240 0.43 93 -1.65 272 0.71 2290 1.30 AR ES
COMLAB 51 -0.47 66 0.48 899 -0.08 374 -0.57 779 -0.50 374 -0.04 1219 0.11 98 -0.75 258 -0.27 2020 -0.97 AR ES
COMLAB 56 0.59 59 -0.89 982 1.69 395 0.25 763 -0.86 400 1.38 1244 0.49 105 0.43 266 0.27 1924 -1.77 2A,3A AAS,MS
COMLAB 49 -0.84 65 0.21 907 0.10 394 0.20 837 0.76 410 1.92 1307 1.42 101 -0.26 274 0.85 2162 0.22 AR ES
COMLAB 4 -3.00 50 -2.54 844 -1.24 344 -1.68 750 -1.15 362 -0.68 1007 -3.00 100 -0.44 203 -3.00 1952 -1.54 AR ICP
COMLAB 57 0.81 67 0.58 823 -1.68 418 1.11 741 -1.35 360 -0.79 1134 -1.15 97 -0.95 244 -1.25 1999 -1.14 3A AAS
COMLAB 44 -1.88 58 -1.07 1077 3.00 427 1.45 949 3.00 405 1.65 1426 3.00 115 2.16 285 1.61 2162 0.22 AR AAS
COMLAB 46 -1.40 61 -0.50 845 -1.22 358 -1.15 693 -2.40 356 -1.01 1177 -0.51 91 -2.06 227 -2.44 1959 -1.48 AR MS
COMLAB 47 -1.17 64 0.06 975 1.54 418 1.11 907 2.29 315 -3.00 1285 1.10 109 1.12 256 -0.41 2388 2.12 AR AAS
COMLAB 53 -0.01 65 0.21 950 1.01 408 0.73 852 1.09 395 1.10 1258 0.69 103 0.08 271 0.64 2150 0.12 AD ES
COMLAB 53 -0.06 63 -0.23 891 -0.24 390 0.05 825 0.50 377 0.13 1148 -0.95 102 -0.09 268 0.43 2123 -0.10 AR ES
MINELAB 63 2.05 62 -0.34 931 0.61 407 0.69 805 0.06 312 -3.00 1160 -0.77 108 0.95 231 -2.16 2110 -0.21 3A AAS
MINELAB 55 0.40 68 0.76 933 0.65 389 0.02 785 -0.38 390 0.83 1224 0.19 109 1.12 270 0.57 2070 -0.55 AR ES
MINELAB 88 3.00 74 1.86 920 0.38 354 -1.30 709 -2.05 354 -1.12 1082 -1.93 104 0.26 164 -3.00 1821 -2.64 3A ES
MINELAB 47 -1.26 61 -0.52 910 0.16 395 0.24 817 0.32 368 -0.36 1229 0.26 100 -0.44 267 0.36 2245 0.92 AR ES
MINELAB 137 3.00 107 3.00 3867 3.00 399 0.39 833 0.67 452 3.00 1375 2.43 283 3.00 494 3.00 2345 1.76 3A ES
MINELAB 46 -1.47 59 -0.87 791 -2.36 333 -2.08 721 -1.79 338 -1.96 955 -3.00 95 -1.37 218 -3.00 1760 -3.00 AR ICP
MINELAB <100 bld <100 bld 860 -0.90 426 1.41 816 0.30 380 0.29 1213 0.02 115 2.16 267 0.36 2155 0.16 AR ES
MINELAB 58 1.06 63 -0.12 928 0.54 412 0.89 852 1.09 334 -2.23 492 -3.00 84 -3.00 101 -3.00 664 -3.00 ICP
MINELAB 50 -0.68 59 -0.93 987 1.80 374 -0.54 793 -0.21 354 -1.09 1336 1.85 100 -0.36 246 -1.09 2312 1.48 AR ES
MINELAB 53 -0.01 67 0.54 917 0.32 416 1.03 814 0.26 389 0.76 1242 0.46 103 0.00 267 0.37 2158 0.19 AR MS
MINELAB 53 -0.09 68 0.79 903 0.01 417 1.08 806 0.09 392 0.95 1186 -0.37 103 0.06 267 0.33 2117 -0.16 AR ES
MINELAB 535 3.00 590 3.00 1370 3.00 540 3.00 920 2.58 450 3.00 <10 -3.00 <10 -3.00 <10 -3.00 1690 -3.00 AR AAS
MINELAB 52 -0.29 59 -0.84 854 -1.04 362 -0.98 786 -0.35 358 -0.88 1240 0.43 101 -0.19 181 -3.00 2111 -0.21 AR ES
MINELAB 51 -0.43 72 1.49 948 0.97 378 -0.40 797 -0.12 369 -0.30 1227 0.23 91 -1.99 212 -3.00 2067 -0.57 AR ES
MINELAB 23 -3.00 58 -1.11 933 0.66 392 0.14 832 0.65 391 0.88 1270 0.88 121 3.00 278 1.15 2204 0.58 AR ICP
MINELAB 50 -0.64 56 -1.44 845 -1.22 350 -1.45 755 -1.04 353 -1.17 1140 -1.06 91 -1.99 250 -0.83 2062 -0.62 AR AAS
MINELAB bld bld bld bld 716 -3.00 286 -3.00 641 -3.00 295 -3.00 1131 -1.20 bld bld 243 -1.32 2149 0.11 AR AAS
MINELAB 36 -3.00 54 -1.86 696 -3.00 372 -0.63 714 -1.93 171 -3.00 1395 2.74 124 3.00 293 2.18 2036 -0.83 3A AAS
MINELAB 51 -0.43 65 0.21 750 -3.00 348 -1.53 777 -0.56 356 -1.01 1159 -0.78 85 -3.00 240 -1.53 2091 -0.37 AR AAS
MINELAB 50 -0.61 62 -0.34 886 -0.35 365 -0.90 808 0.11 375 0.03 1126 -1.28 100 -0.52 235 -1.92 2080 -0.47 AR AAS
Highlighted values are outliers which are assigned a z-score of -3.00 or 3.00 in the standardised values.
Method Reading
Alex Stewart International Argentina SA - Perito Moreno Report Page 33
Arsenic Assay (Partial Digest) - Mean of Absolute Standardized Values - April 2019 Arsenic Assay (Partial Digest) - Mean of Standardized Values - April 2019
Standard Deviations Standard Deviations
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
-3 -2 -1 0 1 2 30 1 2
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
MINELAB
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Alex Stewart International Argentina SA - Perito Moreno ReportPage 34
Cobalt (Total Digest) Round Robin - Summary Statistics, Assays, Standardised Values and Graphs - April 2019
Standard Reference GBM319-1 GBM319-2 GBM319-3 GBM319-4 GBM319-5 GBM319-6 GBM319-7 GBM319-8 GBM319-9 GBM319-10
MEAN (ppm) 73 88 211 95 539 271 45 53 18 3
STDEV (ppm) 4 6 10 7 29 13 3 4 1 1
95% CI (ppm) 1 1 2 2 7 3 1 1 0 0
95% CI (%) 1.50% 1.71% 1.15% 1.96% 1.32% 1.18% 1.74% 1.74% 1.86% 9.07% Cobalt Assay (Total Digest) - Mean of Absolute Standardized Values - April 2019MIN (ppm) 64 73 184 75 461 236 37 45 15 1
MEDIAN (ppm) 73 88 212 95 540 271 46 53 18 3
MAX (ppm) 83 101 228 111 602 290 52 62 21 5
IQR (ppm) 5 8 13 9 35 21 4 4 2 1
COUNT 59 62 64 63 64 64 63 62 59 50
Standard Reference GBM319-1 GBM319-2 GBM319-3 GBM319-4 GBM319-5 GBM319-6 GBM319-7 GBM319-8 GBM319-9 GBM319-10
Lab Reference assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score
MAXXAM ONTARIO 81 1.83 93 0.89 220 0.91 98 0.43 565 0.91 286 1.19 47 0.75 55 0.48 18 -0.01 3 -0.19 NAA
ASA MENDOZA 74 0.19 88 0.05 215 0.41 90 -0.64 519 -0.69 256 -1.12 44 -0.21 50 -0.87 17 -0.78 3 -0.19 4A ES
COMLAB 73 -0.05 92 0.72 223 1.22 107 1.64 566 0.94 284 1.04 46 0.43 62 2.37 17 -0.78 <1 bld 4A ICP
COMLAB 77 0.89 90 0.39 211 0.00 108 1.77 590 1.78 284 1.04 52 2.36 57 1.02 19 0.76 1 -2.12 4A ICP
COMLAB 69 -0.99 94 1.06 225 1.42 91 -0.50 578 1.36 285 1.12 43 -0.53 62 2.37 17 -0.78 <1 bld 4A ICP
COMLAB 75 0.42 86 -0.28 210 -0.10 105 1.37 502 -1.28 252 -1.43 47 0.75 57 1.02 19 0.76 4 0.77 4A AAS
COMLAB 33 -3.00 47 -3.00 131 -3.00 59 -3.00 351 -3.00 170 -3.00 20 -3.00 29 -3.00 10 -3.00 <5 bld 4A ICP
COMLAB 67 -1.36 89 0.15 210 -0.10 93 -0.18 543 0.14 263 -0.58 46 0.34 49 -1.06 18 -0.32 5 1.28 4A ES
COMLAB 72 -0.28 89 0.22 213 0.20 95 0.03 573 1.19 283 0.96 46 0.43 50 -0.87 16 -1.55 2 -1.16 4A ES
COMLAB 77 0.89 94 1.06 215 0.41 90 -0.64 550 0.39 271 0.04 47 0.75 57 1.02 18 -0.01 2 -1.16 4A ES
COMLAB 77 0.89 90 0.39 213 0.20 92 -0.37 541 0.07 284 1.04 44 -0.21 53 -0.06 18 -0.01 3 -0.19 4A ES
COMLAB 78 1.13 95 1.23 214 0.30 111 2.17 560 0.73 284 1.04 46 0.43 54 0.21 18 -0.01 <1 bld 4A ES
COMLAB 83 2.30 91 0.56 224 1.32 100 0.70 602 2.19 284 1.04 49 1.39 57 1.02 20 1.53 4 0.77 4A ICP
COMLAB 69 -0.99 85 -0.45 208 -0.31 92 -0.37 565 0.91 288 1.35 42 -0.85 53 -0.06 13 -3.00 <1 bld 4A ES
COMLAB 57 -3.00 75 -2.13 198 -1.32 93 -0.24 528 -0.38 252 -1.43 39 -1.81 45 -2.22 18 -0.01 3 -0.19 4A ES
COMLAB 76 0.66 93 0.89 203 -0.81 109 1.91 529 -0.34 262 -0.66 47 0.75 52 -0.33 19 0.76 3 -0.19 4A ES
COMLAB 67 -1.45 89 0.22 218 0.71 99 0.57 550 0.39 268 -0.19 46 0.43 50 -0.87 18 -0.01 3 -0.19 4A ES
COMLAB 73 -0.05 90 0.39 212 0.10 91 -0.50 528 -0.38 278 0.58 46 0.43 52 -0.33 16 -1.55 <1 bld 4A ES
COMLAB 68 -1.22 91 0.56 227 1.62 91 -0.50 540 0.04 279 0.65 38 -2.13 53 -0.06 8 -3.00 <1 bld 4A ES
COMLAB 72 -0.28 87 -0.11 217 0.61 99 0.57 562 0.80 290 1.50 45 0.11 51 -0.60 17 -0.78 5 1.73 4A ES
COMLAB 77 0.87 95 1.23 219 0.81 98 0.37 541 0.07 267 -0.27 47 0.66 53 -0.01 17 -0.47 3 -0.10 4A MS
COMLAB 74 0.28 82 -0.89 201 -1.06 87 -1.01 533 -0.21 290 1.49 43 -0.40 50 -0.98 16 -1.78 4 0.38 5A ES
COMLAB 71 -0.45 87 -0.08 214 0.30 96 0.14 498 -1.41 286 1.19 47 0.85 54 0.15 19 0.45 3 0.10 4A ICP
COMLAB 71 -0.52 94 1.06 210 -0.10 84 -1.44 552 0.46 271 0.04 47 0.75 58 1.29 21 2.30 5 1.73 4A ES
COMLAB 59 -3.00 95 1.19 225 1.42 95 0.03 508 -1.07 271 0.04 41 -1.33 57 1.02 20 1.30 4 1.06 4A AAS
COMLAB 79 1.36 92 0.72 216 0.51 110 2.04 580 1.43 284 1.04 47 0.75 56 0.75 21 2.30 3 -0.19 4A ES
COMLAB 71 -0.52 84 -0.62 194 -1.73 98 0.43 516 -0.79 262 -0.66 42 -0.85 52 -0.33 14 -3.00 <1 bld 4A ES
COMLAB 90 3.00 98 1.68 214 0.30 105 1.37 540 0.04 275 0.35 47 0.69 69 3.00 20 1.84 5 1.35 4A ES
COMLAB 76 0.66 93 0.89 212 0.10 94 -0.10 531 -0.27 266 -0.35 45 0.11 51 -0.60 19 0.76 <5 bld 4A AAS
COMLAB 69 -0.99 82 -0.95 216 0.51 92 -0.37 504 -1.21 253 -1.35 43 -0.53 51 -0.60 18 -0.01 5 1.73 4A ICP
COMLAB 77 0.89 79 -1.46 191 -2.03 78 -2.24 447 -3.00 237 -2.59 40 -1.49 57 1.02 16 -1.55 <5 bld 4A ES
COMLAB 81 1.88 88 0.02 225 1.37 103 1.13 552 0.47 284 1.03 51 2.00 55 0.40 18 0.30 8 3.00 4A ES
COMLAB 72 -0.28 86 -0.28 216 0.51 94 -0.10 532 -0.24 273 0.19 43 -0.53 51 -0.60 18 -0.01 3 -0.19 4A MS,AAS
COMLAB 73 -0.05 90 0.39 220 0.91 104 1.24 545 0.21 272 0.11 46 0.43 54 0.21 18 -0.01 2 -1.16 4A ES
COMLAB 75 0.35 87 -0.10 216 0.51 94 -0.08 557 0.63 276 0.42 47 0.88 56 0.75 18 -0.24 3 0.19 4A MS
COMLAB 73 -0.05 93 0.89 209 -0.20 97 0.30 583 1.53 279 0.65 47 0.75 52 -0.33 18 -0.01 2 -1.16 4A ES
COMLAB 76 0.71 87 -0.11 213 0.16 96 0.22 527 -0.41 271 0.01 47 0.63 54 0.13 19 0.53 3 0.00 4A MS
COMLAB 83 2.30 89 0.22 213 0.20 100 0.70 558 0.67 267 -0.27 49 1.39 54 0.21 18 -0.01 3 -0.19 4A MS
COMLAB 76 0.66 90 0.39 207 -0.41 101 0.84 548 0.32 287 1.27 44 -0.21 59 1.56 19 0.76 3 -0.19 4A ICP
COMLAB 71 -0.56 78 -1.59 221 1.03 90 -0.68 537 -0.05 262 -0.63 42 -0.78 56 0.75 19 0.61 5 1.88 4A ES
COMLAB 75 0.38 85 -0.42 217 0.59 99 0.59 530 -0.31 261 -0.74 45 0.08 51 -0.58 17 -0.93 3 -0.48 4A
COMLAB 71 -0.52 84 -0.62 207 -0.41 102 0.97 557 0.63 266 -0.35 45 0.11 52 -0.33 18 -0.01 3 -0.19 4A ES
COMLAB 71 -0.52 84 -0.55 207 -0.40 89 -0.74 527 -0.40 264 -0.47 44 -0.11 55 0.56 18 -0.24 1 -2.31 4A ICP
COMLAB 70 -0.75 87 -0.11 206 -0.51 85 -1.31 500 -1.35 257 -1.04 47 0.75 58 1.29 19 0.76 3 -0.19 4A ICP
COMLAB 70 -0.75 90 0.39 223 1.22 98 0.43 571 1.12 274 0.27 42 -0.85 55 0.48 18 -0.01 1 -2.12 4A ES
COMLAB <500 bld <500 bld <500 bld <500 bld 600 2.13 <500 bld <500 bld <500 bld <500 bld <500 bld FUS
COMLAB 72 -0.28 87 -0.11 217 0.61 96 0.17 546 0.25 267 -0.27 46 0.43 54 0.21 19 0.76 3 -0.19 4A ES
COMLAB 72 -0.28 87 -0.11 201 -1.02 88 -0.91 497 -1.46 263 -0.58 46 0.43 62 2.37 19 0.76 4 0.77 4A ES
COMLAB 71 -0.55 89 0.28 227 1.58 97 0.28 547 0.28 282 0.87 45 0.21 54 0.30 17 -0.94 1 -1.86 FUS,4A ICP
COMLAB 74 0.14 80 -1.35 184 -2.70 86 -1.20 508 -1.07 267 -0.28 47 0.66 50 -0.87 17 -1.01 3 -0.19 4A ICP
COMLAB 67 -1.50 83 -0.83 197 -1.45 92 -0.39 530 -0.29 249 -1.68 43 -0.54 48 -1.45 16 -1.51 5 1.72 4A AAS
COMLAB 76 0.61 101 2.23 217 0.61 97 0.30 540 0.04 280 0.73 46 0.53 54 0.07 19 0.38 4 0.58 FUS ICP
COMLAB 71 -0.52 85 -0.45 207 -0.41 91 -0.50 528 -0.38 259 -0.89 43 -0.53 53 -0.06 19 0.76 <5 bld 4A AAS
COMLAB 68 -1.31 96 1.46 236 2.54 99 0.55 554 0.53 255 -1.20 41 -1.10 54 0.24 17 -0.86 3 -0.48 4A AAS
COMLAB 82 1.96 97 1.59 207 -0.39 100 0.69 576 1.27 283 0.95 46 0.31 51 -0.47 19 0.91 4 0.45 4A MS
COMLAB 73 -0.05 94 1.06 203 -0.81 101 0.84 500 -1.35 274 0.27 42 -0.85 53 -0.06 21 2.30 8 3.00 4A ES
COMLAB 67 -1.55 84 -0.60 202 -0.94 85 -1.28 546 0.24 271 0.04 47 0.81 47 -1.75 18 -0.21 4 0.66 4A ES
COMLAB 77 0.89 83 -0.78 202 -0.92 88 -0.91 514 -0.86 275 0.35 40 -1.49 50 -0.87 17 -0.78 3 -0.19 4A AAS,ES,MS
COMLAB 69 -0.89 95 1.21 200 -1.12 98 0.38 540 0.04 266 -0.35 39 -1.87 45 -2.17 18 -0.01 3 -0.29 4A ES
COMLAB 70 -0.75 81 -1.12 204 -0.71 90 -0.64 506 -1.14 259 -0.89 44 -0.21 53 -0.06 17 -0.78 2 -1.16 4A ES
COMLAB nr nr nr nr 228 1.73 nr nr 565 0.91 289 1.43 nr nr nr nr nr nr nr nr 4A AAS
COMLAB 74 0.09 86 -0.25 224 1.32 95 -0.02 556 0.60 272 0.11 47 0.79 54 0.21 18 -0.01 3 -0.26 4A MS
COMLAB 64 -2.21 73 -2.55 193 -1.83 90 -0.68 510 -1.00 254 -1.28 37 -2.61 45 -2.17 16 -1.86 3 0.00 4A ES
MINELAB 71 -0.52 80 -1.24 212 0.11 83 -1.60 461 -2.72 236 -2.67 41 -1.15 53 -0.03 15 -2.06 4 0.56 4A ES
MINELAB 74 0.12 73 -2.46 197 -1.42 75 -2.69 495 -1.52 257 -1.04 37 -2.54 53 0.02 11 -3.00 <2 bld 3A,MICR ES
MINELAB 66 -1.69 78 -1.62 200 -1.12 84 -1.51 524 -0.53 246 -1.88 46 0.27 51 -0.71 18 -0.01 3 0.19 4A MS
MINELAB 54 -3.00 68 -3.00 196 -1.50 93 -0.29 480 -2.04 277 0.53 44 -0.12 50 -0.83 17 -0.59 4 0.35 FUS ICP
Highlighted values are outliers which are assigned a z-score of -3.00 or 3.00 in the standardised values.
Method Reading
Alex Stewart International Argentina SA - Perito Moreno Report Page 35
Cobalt Assay (Total Digest) - Mean of Absolute Standardized Values - April 2019 Cobalt Assay (Total Digest) - Mean of Standardized Values - April 2019
Standard Deviations Standard Deviations
MAXXAM ONTARIO
ASA MENDOZA
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
MINELAB
MINELAB
MINELAB
MINELAB
-3 -2 -1 0 1 2 30 1 2
MAXXAM ONTARIO
ASA MENDOZA
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
COMLAB
MINELAB
MINELAB
MINELAB
MINELAB
Alex Stewart International Argentina SA - Perito Moreno ReportPage 36
Cobalt (Partial Digest) Round Robin - Summary Statistics, Assays, Standardised Values and Graphs - April 2019
Standard Reference GBM319-1 GBM319-2 GBM319-3 GBM319-4 GBM319-5 GBM319-6 GBM319-7 GBM319-8 GBM319-9 GBM319-10
MEAN (ppm) 54 77 204 91 540 257 44 50 18 3
STDEV (ppm) 5 5 16 9 37 18 4 3 2 1
95% CI (ppm) 1 1 4 2 9 5 1 1 1 0
95% CI (%) 2.56% 1.80% 2.07% 2.44% 1.75% 1.80% 2.40% 1.70% 3.03% 11.13% Cobalt Assay (Partial Digest) - Mean of Absolute Standardized Values - April 2019MIN (ppm) 44 63 162 75 479 217 35 43 13 1
MEDIAN (ppm) 53 76 205 92 539 256 44 50 18 3
MAX (ppm) 67 91 235 110 622 299 54 58 23 6
IQR (ppm) 7 7 22 12 41 20 4 4 2 1
COUNT 60 59 59 62 59 60 60 58 58 40
Standard Reference GBM319-1 GBM319-2 GBM319-3 GBM319-4 GBM319-5 GBM319-6 GBM319-7 GBM319-8 GBM319-9 GBM319-10
Lab Reference assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score
COMLAB 57 0.53 96 3.00 272 3.00 121 3.00 693 3.00 312 3.00 42 -0.46 63 3.00 19 0.50 <1 bld AR ICP
COMLAB 52 -0.39 86 1.76 225 1.25 110 2.11 596 1.51 291 1.87 39 -1.19 57 2.11 16 -0.93 <1 bld AR ICP
COMLAB 53 -0.20 76 -0.10 210 0.34 87 -0.49 525 -0.42 255 -0.12 44 0.03 52 0.59 18 0.02 <2 bld AR AAS
COMLAB 58 0.72 74 -0.48 162 -2.58 75 -1.84 425 -3.00 236 -1.17 43 -0.22 52 0.59 23 2.41 10 3.00 AR ES
COMLAB 49 -0.94 72 -0.85 191 -0.82 92 0.08 525 -0.42 259 0.10 44 0.03 50 -0.02 17 -0.45 2 -0.99 AR ES
COMLAB 51 -0.57 79 0.46 205 0.04 97 0.64 558 0.48 256 -0.07 43 -0.22 52 0.59 18 0.02 <1 bld AR ES
COMLAB 54 -0.02 84 1.39 198 -0.39 106 1.66 566 0.70 275 0.98 46 0.51 53 0.89 18 0.02 <1 bld AR ICP
COMLAB 53 -0.20 76 -0.10 216 0.71 89 -0.26 541 0.02 257 -0.01 38 -1.43 50 -0.02 15 -1.41 <1 bld AR ES
COMLAB 50 -0.76 72 -0.85 202 -0.15 92 0.08 533 -0.20 255 -0.12 43 -0.22 49 -0.32 18 0.02 4 0.84 AR ES
COMLAB 53 -0.20 78 0.27 198 -0.39 98 0.76 564 0.64 261 0.21 44 0.03 52 0.59 18 0.02 4 0.84 AR ES
COMLAB 50 -0.76 72 -0.85 207 0.16 86 -0.60 512 -0.77 243 -0.78 42 -0.46 47 -0.93 17 -0.45 3 -0.08 AR ES
COMLAB 59 0.90 84 1.39 213 0.52 95 0.42 540 -0.01 267 0.54 39 -1.19 51 0.29 10 -3.00 <1 bld AR ES
COMLAB 51 -0.65 75 -0.31 200 -0.30 80 -1.27 530 -0.28 244 -0.73 45 0.17 50 -0.08 19 0.26 3 -0.26 AR MS
COMLAB 44 -1.81 69 -1.33 182 -1.39 85 -0.72 496 -1.19 231 -1.45 30 -3.00 43 -2.31 14 -1.94 3 0.11 AR ES
COMLAB 54 -0.11 74 -0.55 211 0.39 92 0.09 517 -0.63 252 -0.27 47 0.73 53 1.02 19 0.60 3 -0.08 AR ICP
COMLAB 49 -0.94 71 -1.04 205 0.04 85 -0.71 537 -0.09 248 -0.51 46 0.51 49 -0.32 19 0.50 5 1.75 AR ES
COMLAB 49 -0.94 75 -0.29 189 -0.94 84 -0.82 499 -1.12 246 -0.62 43 -0.22 47 -0.93 17 -0.45 3 -0.08 AR ES
COMLAB 84 3.00 99 3.00 234 1.80 110 2.11 555 0.40 281 1.32 50 1.48 60 3.00 19 0.50 3 -0.08 AR ICP
COMLAB 57 0.53 77 0.08 189 -0.94 79 -1.39 486 -1.47 232 -1.39 42 -0.46 46 -1.24 18 0.02 5 1.75 AR ES
COMLAB <100 bld <100 bld 205 0.04 <100 bld 504 -0.98 256 -0.09 <100 bld <100 bld <100 bld <100 bld AR ES
COMLAB 53 -0.20 80 0.64 216 0.71 96 0.53 543 0.07 265 0.43 46 0.51 53 0.89 19 0.50 2 -0.99 AR MS
COMLAB 50 -0.79 69 -1.33 182 -1.37 82 -1.04 525 -0.40 248 -0.51 35 -2.06 46 -1.33 15 -1.22 2 -0.59 AR ES
COMLAB 49 -0.94 77 0.08 170 -2.09 77 -1.61 560 0.54 251 -0.34 44 0.03 50 -0.02 19 0.50 3 -0.08 AR ES
COMLAB 53 -0.20 75 -0.29 194 -0.63 86 -0.60 519 -0.58 254 -0.18 41 -0.70 47 -0.93 16 -0.93 1 -1.91 AR MS
COMLAB 85 3.00 98 3.00 222 1.07 108 1.88 613 1.97 313 3.00 54 2.43 nr nr 20 0.88 <10 bld 3A ICP
COMLAB 53 -0.20 79 0.46 206 0.10 95 0.42 543 0.07 261 0.21 45 0.27 52 0.59 19 0.50 3 -0.08 AR ES
COMLAB 54 -0.02 70 -1.22 218 0.83 92 0.08 618 2.11 294 2.03 50 1.48 37 -3.00 20 0.98 6 2.67 AR AAS
COMLAB 50 -0.76 73 -0.66 200 -0.27 91 -0.03 616 2.06 226 -1.72 51 1.72 52 0.59 22 1.94 10 3.00 AR AAS
COMLAB 56 0.35 76 -0.10 192 -0.75 82 -1.05 494 -1.26 243 -0.78 43 -0.22 47 -0.93 16 -0.93 3 -0.08 AR ES
COMLAB 63 1.64 81 0.83 205 0.04 92 0.08 417 -3.00 217 -2.22 39 -1.19 50 -0.02 13 -2.37 3 -0.08 3A ICP
COMLAB nr nr 76 -0.03 208 0.20 82 -1.03 558 0.49 264 0.38 49 1.31 50 -0.17 19 0.26 3 0.11 AR ICP
COMLAB 47 -1.27 68 -1.54 196 -0.51 94 0.33 496 -1.20 240 -0.95 40 -1.04 46 -1.24 17 -0.50 3 -0.44 AR MS
COMLAB 66 2.23 101 3.00 197 -0.45 107 1.74 523 -0.48 252 -0.31 51 1.70 53 0.96 23 2.32 4 0.66 AR AAS
COMLAB 50 -0.81 63 -2.54 193 -0.69 80 -1.28 479 -1.67 230 -1.53 63 3.00 48 -0.74 32 3.00 21 3.00 3A AAS
COMLAB 48 -1.12 74 -0.48 >100 ald 81 -1.16 >100 ald >100 ald 36 -1.92 50 -0.02 17 -0.45 <5 bld AR AAS
COMLAB 50 -0.79 76 -0.12 213 0.52 100 0.95 568 0.75 233 -1.34 45 0.20 52 0.56 15 -1.36 3 -0.44 AR MS
COMLAB 49 -0.94 70 -1.22 194 -0.63 86 -0.60 520 -0.55 262 0.27 44 0.03 49 -0.32 18 0.02 3 -0.08 AR MS
COMLAB 52 -0.39 82 1.02 207 0.16 101 1.09 555 0.40 265 0.43 43 -0.22 45 -1.54 21 1.46 4 0.84 AR ES
COMLAB 45 -1.72 75 -0.28 194 -0.61 89 -0.24 543 0.06 264 0.37 43 -0.12 48 -0.55 18 0.13 4 0.40 AR ES
COMLAB 52 -0.31 78 0.25 194 -0.61 82 -1.05 493 -1.28 256 -0.06 42 -0.46 47 -0.93 17 -0.45 3 -0.08 2A,3A AAS,MS
COMLAB 49 -0.94 78 0.27 202 -0.15 88 -0.37 559 0.51 262 0.27 45 0.27 49 -0.32 17 -0.45 2 -0.99 AR ES
COMLAB 64 1.82 88 2.14 233 1.74 100 0.98 622 2.22 281 1.32 51 1.72 58 2.42 18 0.02 10 3.00 3A ICP
COMLAB 57 0.53 74 -0.48 190 -0.88 93 0.19 527 -0.36 239 -1.01 42 -0.46 50 -0.02 17 -0.45 <5 bld 3A AAS
COMLAB 62 1.45 81 0.83 223 1.13 96 0.53 574 0.92 265 0.43 46 0.51 57 2.11 20 0.98 5 1.75 AR AAS
COMLAB 51 -0.55 79 0.36 196 -0.51 94 0.26 539 -0.04 251 -0.34 45 0.29 50 -0.02 18 -0.12 3 0.25 AR MS
COMLAB 55 0.16 81 0.83 219 0.89 97 0.64 538 -0.06 271 0.76 46 0.51 53 0.89 21 1.46 <10 bld AR AAS
COMLAB 55 0.16 73 -0.66 215 0.64 85 -0.71 541 0.02 268 0.60 40 -0.95 46 -1.24 16 -0.93 3 -0.08 AD AAS
MINELAB 67 2.37 76 -0.10 227 1.37 99 0.87 614 2.00 288 1.70 44 0.03 52 0.59 17 -0.45 2 -0.99 AR ES
MINELAB 60 1.08 80 0.64 217 0.77 109 2.00 550 0.26 282 1.37 58 3.00 62 3.00 30 3.00 19 3.00 3A AAS
MINELAB 51 -0.66 71 -1.00 178 -1.61 84 -0.78 485 -1.51 236 -1.17 52 1.85 55 1.35 27 3.00 15 3.00 3A AAS
MINELAB 62 1.45 80 0.64 206 0.10 91 -0.03 548 0.21 263 0.32 48 1.00 51 0.29 20 0.98 4 0.84 3A ES
MINELAB 59 0.90 78 0.27 234 1.80 77 -1.66 506 -0.93 249 -0.45 43 -0.22 48 -0.63 17 -0.45 <5 bld AR ES
MINELAB 6 -3.00 7 -3.00 16 -3.00 8 -3.00 391 -3.00 128 -3.00 3 -3.00 4 -3.00 2 -3.00 1 -2.33 AR ICP
MINELAB 49 -0.94 70 -1.22 200 -0.27 90 -0.15 507 -0.90 242 -0.84 43 -0.22 48 -0.63 <20 bld <20 bld AR ES
MINELAB 56 0.27 76 -0.20 458 3.00 90 -0.19 479 -1.67 220 -2.03 35 -2.09 45 -1.54 16 -0.93 2 -0.99 ICP
MINELAB 51 -0.57 73 -0.66 206 0.10 86 -0.60 520 -0.55 254 -0.18 38 -1.43 47 -0.93 15 -1.41 1 -1.91
MINELAB 59 0.99 77 0.03 235 1.88 94 0.34 543 0.08 299 2.31 41 -0.80 49 -0.39 17 -0.24 3 0.18 AR ES
MINELAB 60 1.10 82 1.09 228 1.42 97 0.60 597 1.54 283 1.44 43 -0.29 52 0.50 14 -1.67 nr nr AR MS
MINELAB 57 0.51 82 1.02 215 0.67 101 1.06 584 1.18 263 0.34 45 0.19 54 1.25 19 0.53 3 -0.19 AR ES
MINELAB 57 0.50 81 0.76 223 1.14 94 0.34 563 0.62 277 1.09 44 -0.05 53 0.81 17 -0.54 <5 bld AR ES
MINELAB 61 1.27 82 1.02 290 3.00 102 1.21 563 0.62 266 0.49 46 0.51 53 0.89 19 0.50 <5 bld AR ES
MINELAB 66 2.20 88 2.05 227 1.36 98 0.73 585 1.22 288 1.69 48 0.97 55 1.37 20 0.96 <5 bld AR ICP
MINELAB 53 -0.20 73 -0.66 200 -0.27 91 -0.03 520 -0.55 259 0.10 51 1.72 52 0.59 22 1.94 10 3.00 AR AAS
MINELAB 51 -0.66 91 2.70 202 -0.15 102 1.21 538 -0.06 250 -0.39 43 -0.22 51 0.38 15 -1.22 4 0.84 3A AAS
MINELAB 58 0.72 72 -0.85 186 -1.12 80 -1.27 507 -0.90 251 -0.34 42 -0.46 48 -0.63 19 0.50 3 -0.08 AR AAS
MINELAB 45 -1.68 71 -1.00 174 -1.87 78 -1.46 490 -1.37 244 -0.75 38 -1.38 44 -1.85 16 -0.88 3 -0.35 AR MS
Highlighted values are outliers which are assigned a z-score of -3.00 or 3.00 in the standardised values.
Method Reading
Alex Stewart International Argentina SA - Perito Moreno Report Page 37
Cobalt Assay (Partial Digest) - Mean of Absolute Standardized Values - April 2019 Cobalt Assay (Partial Digest) - Mean of Standardized Values - April 2019
Standard Deviations Standard Deviations
COMLAB
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-3 -2 -1 0 1 2 30 1 2
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Alex Stewart International Argentina SA - Perito Moreno ReportPage 38
Ore Grade Copper Round Robin - Summary Statistics, Assays, Standardised Values and Graphs - April 2019
Standard Reference GBM319-11 GBM319-12 GBM319-13 GBM319-14 GBM319-15 GBM319-16
MEAN (ppm) 180603 195549 15964 29416 43324 69993
STDEV (ppm) 4778 5019 568 915 1340 2279
95% CI (ppm) 893 917 100 163 238 403
95% CI (%) 0.49% 0.47% 0.63% 0.55% 0.55% 0.58% Ore Grade Copper Assay - Mean of Absolute Standardized Values - April 2019MIN (ppm) 168000 181996 14641 27420 40076 64011
MEDIAN (ppm) 180450 195000 15945 29390 43380 69876
MAX (ppm) 193572 208384 17484 31596 46731 75961
IQR (ppm) 5203 5531 734 1123 1905 2913
COUNT 111 116 124 122 123 124
Standard Reference GBM319-11 GBM319-12 GBM319-13 GBM319-14 GBM319-15 GBM319-16
Lab Reference assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score
ASA MENDOZA 181823 0.26 196764 0.24 15767 -0.35 29611 0.21 43773 0.34 70285 0.13 3A ES
COMLAB 184000 0.71 197000 0.29 16600 1.12 28700 -0.78 43800 0.36 68600 -0.61 FUS ICP
COMLAB 181570 0.20 195640 0.02 15730 -0.41 28570 -0.93 45450 1.59 69490 -0.22 4A ES
COMLAB 182000 0.29 195000 -0.11 15400 -0.99 28600 -0.89 44100 0.58 72700 1.19 4A ES
COMLAB 186039 1.14 198124 0.51 15784 -0.32 29303 -0.12 42011 -0.98 69674 -0.14 4A AAS
COMLAB 168200 -2.60 178770 -3.00 15040 -1.63 27465 -2.13 41330 -1.49 65730 -1.87 FUS ES
COMLAB 239460 3.00 259642 3.00 15630 -0.59 37234 3.00 55138 3.00 93847 3.00 4A ES
COMLAB 177000 -0.75 193500 -0.41 16200 0.42 29400 -0.02 43300 -0.02 69100 -0.39 4A ES
COMLAB 184500 0.82 202000 1.29 15500 -0.82 28500 -1.00 42500 -0.61 72500 1.10 FUS XRF
COMLAB 181000 0.08 194000 -0.31 15900 -0.11 29300 -0.13 43900 0.43 70000 0.00 4A ES
COMLAB 181500 0.19 192500 -0.61 15900 -0.11 29000 -0.46 42900 -0.32 69100 -0.39 FUS ES
COMLAB 186500 1.23 189000 -1.30 16200 0.42 29000 -0.46 46100 2.07 70400 0.18 4A ES
COMLAB 183000 0.50 196500 0.19 16300 0.59 29400 -0.02 43500 0.13 67000 -1.31 4A ICP
COMLAB 179500 -0.23 195000 -0.11 15900 -0.11 29500 0.09 42000 -0.99 68300 -0.74 4A ES
COMLAB 179000 -0.34 202000 1.29 16600 1.12 30600 1.29 44100 0.58 73000 1.32 4A ES
COMLAB 178500 -0.44 193500 -0.41 15800 -0.29 29900 0.53 42400 -0.69 69200 -0.35 4A ES
COMLAB 178450 -0.45 188180 -1.47 15990 0.05 29650 0.26 42550 -0.58 72120 0.93 AR ES
COMLAB 175000 -1.17 193500 -0.41 16150 0.33 29600 0.20 43500 0.13 69600 -0.17 AR ES
COMLAB 175500 -1.07 190000 -1.11 16150 0.33 29000 -0.46 42300 -0.76 69000 -0.44 AR ES
COMLAB 179500 -0.23 198500 0.59 16050 0.15 29500 0.09 42700 -0.47 70800 0.35 4A ES
COMLAB 178050 -0.53 193450 -0.42 15760 -0.36 28990 -0.47 43060 -0.20 67880 -0.93 4A AAS
COMLAB 183050 0.51 196400 0.17 16060 0.17 28970 -0.49 42640 -0.51 71800 0.79 AR AAS
COMLAB 181150 0.11 192300 -0.65 15540 -0.75 29700 0.31 44580 0.94 68260 -0.76 4A AAS
COMLAB 177500 -0.65 196500 0.19 15950 -0.02 28500 -1.00 42700 -0.47 66500 -1.53 4A ES
COMLAB 175500 -1.07 191000 -0.91 15800 -0.29 28100 -1.44 42000 -0.99 67700 -1.01 4A ES
COMLAB 185100 0.94 194500 -0.21 15700 -0.46 28500 -1.00 43500 0.13 69600 -0.17 4A,VOL AAS
COMLAB 177827 -0.58 196859 0.26 15147 -1.44 28411 -1.10 42469 -0.64 70794 0.35 5A ES
COMLAB 162125 -3.00 177483 -3.00 15297 -1.17 28743 -0.74 41444 -1.40 54333 -3.00 AR AAS
COMLAB 176700 -0.82 192000 -0.71 15890 -0.13 30530 1.22 43710 0.29 66940 -1.34 4A,TITR AAS
COMLAB 179000 -0.34 195000 -0.11 16000 0.06 29100 -0.35 43600 0.21 69500 -0.22 3A ES
COMLAB 178990 -0.34 190730 -0.96 16076 0.20 29872 0.50 44370 0.78 71070 0.47 4A AAS
COMLAB 176295 -0.90 192506 -0.61 16298 0.59 29792 0.41 44966 1.23 69697 -0.13 4A,VOL AAS
COMLAB 176856 -0.78 195021 -0.11 16020 0.10 29114 -0.33 nr nr 69765 -0.10 4A AAS
COMLAB 180454 -0.03 196937 0.28 16280 0.56 30290 0.96 44098 0.58 71899 0.84 4A,VOL AAS
COMLAB >100000 ald >100000 ald 17484 2.68 31507 2.29 41604 -1.28 66797 -1.40 AR AAS
COMLAB 183440 0.59 199641 0.82 16047 0.15 29301 -0.13 44950 1.21 71573 0.69 3A AAS
COMLAB 182000 0.29 200000 0.89 16200 0.42 29200 -0.24 44000 0.50 71000 0.44 4A ES
COMLAB >100000 ald >100000 ald 16000 0.06 29958 0.59 42041 -0.96 64011 -2.63 AR ES
COMLAB 174130 -1.35 193190 -0.47 15530 -0.76 29500 0.09 43300 -0.02 70180 0.08 4A AAS
COMLAB 176000 -0.96 196000 0.09 15700 -0.46 28500 -1.00 44300 0.73 71400 0.62 4A ES
COMLAB 178100 -0.52 195400 -0.03 16100 0.24 29600 0.20 43100 -0.17 70300 0.13 TITR ES
COMLAB 176000 -0.96 192500 -0.61 15400 -0.99 29600 0.20 42100 -0.91 70000 0.00 AR ES
COMLAB 182600 0.42 195100 -0.09 16120 0.28 29680 0.29 43640 0.24 70870 0.39 4A AAS
COMLAB 184000 0.71 198000 0.49 16200 0.42 30200 0.86 44100 0.58 69200 -0.35 4A ICP
COMLAB 183000 0.50 196000 0.09 16400 0.77 30600 1.29 42100 -0.91 73100 1.36 4A ES
COMLAB 186278 1.19 207944 2.47 16416 0.80 28465 -1.04 41819 -1.12 66657 -1.46 4A ES
COMLAB 180646 0.01 195802 0.05 15787 -0.31 29344 -0.08 43051 -0.20 69776 -0.10 4A TITR,AAS
COMLAB >50000 ald >50000 ald 15994 0.05 29232 -0.20 44378 0.79 >50000 ald AR ES
COMLAB 189760 1.92 197259 0.34 16665 1.24 28488 -1.01 44187 0.64 69665 -0.14 4A ES
COMLAB 183550 0.62 194912 -0.13 15872 -0.16 28898 -0.57 44842 1.13 66851 -1.38 4A ES
COMLAB 186600 1.26 192900 -0.53 16100 0.24 29200 -0.24 43100 -0.17 70700 0.31 4A ES
COMLAB 185000 0.92 193000 -0.51 17000 1.83 30500 1.18 45000 1.25 71500 0.66 4A AAS
COMLAB 211752 3.00 212790 3.00 16027 0.11 29499 0.09 42786 -0.40 69463 -0.23 3A AAS
COMLAB 186913 1.32 197925 0.47 16223 0.46 30223 0.88 44240 0.68 70716 0.32 4A ICP
COMLAB 175463 -1.08 197200 0.33 15888 -0.13 29880 0.51 44121 0.60 68689 -0.57 4A ES
COMLAB 168000 -2.64 183000 -2.50 15600 -0.64 28800 -0.67 42800 -0.39 69400 -0.26 4A ES
COMLAB 149598 -3.00 173710 -3.00 15710 -0.45 28430 -1.08 42050 -0.95 73864 1.70 FUS XRF
COMLAB 175250 -1.12 198382 0.56 15428 -0.94 28104 -1.43 42165 -0.86 70622 0.28 AR ES
COMLAB 182167 0.33 201500 1.19 nr nr 29650 0.26 45600 1.70 69580 -0.18 4A ICP
COMLAB 182000 0.29 193000 -0.51 15300 -1.17 28100 -1.44 42000 -0.99 67500 -1.09 4A AAS
COMLAB 178692 -0.40 203533 1.59 15346 -1.09 28810 -0.66 44065 0.55 71960 0.86 4A ES
COMLAB 161000 -3.00 164000 -3.00 13800 -3.00 24500 -3.00 36000 -3.00 57700 -3.00 AR MS
COMLAB 180150 -0.09 193000 -0.51 15795 -0.30 29930 0.56 42220 -0.82 69417 -0.25 FUS ES
COMLAB 196710 3.00 201423 1.17 19449 3.00 31375 2.14 44104 0.58 71890 0.83 AR AAS
COMLAB 182915 0.48 195795 0.05 17270 2.30 29685 0.29 44905 1.18 71650 0.73 ES
COMLAB 175780 -1.01 189880 -1.13 16789 1.45 27900 -1.66 41952 -1.02 72000 0.88 3A AAS
COMLAB 195053 3.00 207918 2.46 15243 -1.27 30302 0.97 45495 1.62 72551 1.12 4A ES
COMLAB 198301 3.00 211782 3.00 17004 1.83 32257 3.00 45069 1.30 71765 0.78 3A ICP
COMLAB 181900 0.27 192017 -0.70 16025 0.11 30283 0.95 43387 0.05 71935 0.85 FUS,TITR ICP
COMLAB 173155 -1.56 195427 -0.02 16068 0.18 29419 0.00 43247 -0.06 68879 -0.49 AAS
COMLAB >50000 ald >50000 ald 17117 2.03 31062 1.80 44543 0.91 >50000 ald 4A AAS
COMLAB 179455 -0.24 195457 -0.02 15484 -0.85 28398 -1.11 40909 -1.80 69975 -0.01 4A AAS
COMLAB 179200 -0.29 194600 -0.19 16000 0.06 29400 -0.02 43200 -0.09 70500 0.22 4A,TITR AAS
COMLAB 171347 -1.94 176343 -3.00 14919 -1.84 28187 -1.34 40076 -2.42 69022 -0.43 4A AAS
COMLAB 180800 0.04 192500 -0.61 15676 -0.51 29112 -0.33 41897 -1.06 67378 -1.15 4A AAS
COMLAB 181364 0.16 192202 -0.67 15481 -0.85 29995 0.63 44020 0.52 68666 -0.58 3A AAS
COMLAB nr nr nr nr 15400 -0.99 28400 -1.11 47500 3.00 70200 0.09 4A AAS
COMLAB 178900 -0.36 192000 -0.71 16200 0.42 28800 -0.67 43500 0.13 69400 -0.26 AR MS
COMLAB 186690 1.27 200470 0.98 17049 1.91 29665 0.27 43627 0.23 70377 0.17 FUS ICP
COMLAB 180000 -0.13 193000 -0.51 15400 -0.99 27600 -1.99 41900 -1.06 67000 -1.31 4A ES
COMLAB 183045 0.51 192038 -0.70 15401 -0.99 28354 -1.16 42433 -0.66 68964 -0.45 4A ICP,AAS
COMLAB 185300 0.98 200200 0.93 16620 1.16 31300 2.06 44820 1.12 70900 0.40 FUS,4A ES,AAS
COMLAB 178301 -0.48 196966 0.28 16058 0.17 29294 -0.13 43142 -0.14 71560 0.69 FUS ICP
COMLAB 173517 -1.48 189604 -1.18 15939 -0.04 29848 0.47 43149 -0.13 68545 -0.64 4A ES
COMLAB 178700 -0.40 192800 -0.55 16252 0.51 25200 -3.00 43500 0.13 70400 0.18 3A ICP
COMLAB 177168 -0.72 190779 -0.95 15521 -0.78 29027 -0.43 41892 -1.07 69010 -0.43 3A AAS
COMLAB 186187 1.17 193449 -0.42 15554 -0.72 28564 -0.93 42107 -0.91 67925 -0.91 4A AAS
COMLAB 177100 -0.73 186590 -1.79 15570 -0.69 29310 -0.12 41450 -1.40 67890 -0.92 3A ES
COMLAB 181504 0.19 196602 0.21 16448 0.85 30393 1.07 42984 -0.25 68025 -0.86 AR AAS
COMLAB 187500 1.44 201300 1.15 15910 -0.09 29340 -0.08 43380 0.04 71570 0.69 1A AAS
COMLAB 184300 0.77 202700 1.42 16607 1.13 30183 0.84 45100 1.33 70450 0.20 AR ES
MINELAB 178500 -0.44 190500 -1.01 15900 -0.11 28800 -0.67 43000 -0.24 69700 -0.13 3A AAS
MINELAB 179519 -0.23 194121 -0.28 16508 0.96 30488 1.17 44474 0.86 71167 0.52 AR AAS
MINELAB 180308 -0.06 195963 0.08 15729 -0.41 30240 0.90 43705 0.28 71196 0.53 3A AAS
MINELAB 189755 1.92 202347 1.35 16608 1.14 30460 1.14 44442 0.83 70803 0.36 AR AAS
MINELAB 206748 3.00 225837 3.00 15317 -1.14 28442 -1.07 42113 -0.90 67042 -1.29 FUS ES
MINELAB 201360 3.00 199840 0.85 15000 -1.70 28960 -0.50 44400 0.80 64160 -2.56 AD ES
MINELAB 190900 2.16 195500 -0.01 16910 1.67 27420 -2.18 41560 -1.32 66540 -1.52 AAS
MINELAB 177300 -0.69 192400 -0.63 15700 -0.46 29600 0.20 43000 -0.24 69300 -0.30 4A AAS
MINELAB 178400 -0.46 187300 -1.64 15500 -0.82 29100 -0.35 42050 -0.95 68150 -0.81 3A AAS
MINELAB 185400 1.00 192260 -0.66 16585 1.09 29380 -0.04 42080 -0.93 68325 -0.73 3A AAS
MINELAB 182095 0.31 192928 -0.52 15789 -0.31 30054 0.70 43508 0.14 68864 -0.50 3A ES
MINELAB 176351 -0.89 201992 1.28 16478 0.91 30457 1.14 45394 1.55 72052 0.90 AR ES
MINELAB 170000 -2.22 191500 -0.81 16300 0.59 30000 0.64 44400 0.80 73200 1.41 FUS XRF
MINELAB 203900 3.00 236400 3.00 21690 3.00 36710 3.00 51680 3.00 83030 3.00
MINELAB 201157 3.00 205261 1.94 17413 2.55 29675 0.28 42278 -0.78 71836 0.81 3A ES
MINELAB 101334 -3.00 106461 -3.00 14641 -2.33 26246 -3.00 37786 -3.00 54547 -3.00 AR ICP
MINELAB 180450 -0.03 203400 1.56 16390 0.75 29770 0.39 43150 -0.13 73070 1.35 AR ES
MINELAB 163234 -3.00 181996 -2.70 15137 -1.46 27519 -2.07 42499 -0.62 67373 -1.15 AR AAS
MINELAB 208263 3.00 224531 3.00 19201 3.00 35655 3.00 51065 3.00 81867 3.00 AR ES
MINELAB 195209 3.00 207667 2.41 17230 2.23 31399 2.17 46731 2.54 75373 2.36 AR MS
MINELAB 190985 2.17 202096 1.30 16405 0.78 31259 2.01 48589 3.00 75494 2.41 AR ES
MINELAB 192356 2.46 205453 1.97 14223 -3.00 25112 -3.00 37119 -3.00 74754 2.09 4A ES
MINELAB 179900 -0.15 191750 -0.76 16440 0.84 31020 1.75 45855 1.89 64960 -2.21 4A AAS
MINELAB 179275 -0.28 189716 -1.16 15961 0.00 28592 -0.90 43813 0.37 68917 -0.47 AR ICP
MINELAB 180717 0.02 198370 0.56 16043 0.14 29295 -0.13 42667 -0.49 70199 0.09 AR ES
MINELAB 180800 0.04 194600 -0.19 15280 -1.20 21549 -3.00 40690 -1.97 65320 -2.05 3A ES
MINELAB 182010 0.29 201081 1.10 14745 -2.15 28859 -0.61 41098 -1.66 72895 1.27 AR ES
MINELAB 193572 2.71 205083 1.90 16701 1.30 31040 1.78 45608 1.71 74629 2.03 3A,MICR ES
MINELAB 182600 0.42 195450 -0.02 16250 0.50 30200 0.86 43950 0.47 70800 0.35 AR AAS
MINELAB 177800 -0.59 193400 -0.43 15700 -0.46 28700 -0.78 42800 -0.39 69100 -0.39 FUS XRF
MINELAB 177812 -0.58 192601 -0.59 15518 -0.79 31487 2.26 44489 0.87 72208 0.97 AR AAS
MINELAB 225500 3.00 236275 3.00 19225 3.00 32300 3.00 50900 3.00 82700 3.00 AR AAS
MINELAB 190788 2.13 203983 1.68 15662 -0.53 28601 -0.89 44404 0.81 75961 2.62 AAS
MINELAB 199022 3.00 208384 2.56 18324 3.00 31596 2.38 46730 2.54 75105 2.24 3A AAS
MINELAB 179679 -0.19 189281 -1.25 16798 1.47 27630 -1.95 41247 -1.55 70432 0.19 3A AAS
MINELAB 182300 0.36 196400 0.17 16730 1.35 29870 0.50 43500 0.13 71040 0.46 3A AAS
MINELAB 180000 -0.13 191450 -0.82 15165 -1.41 29100 -0.35 43800 0.36 69200 -0.35 3A AAS
MINELAB 172150 -1.77 191184 -0.87 14833 -1.99 29380 -0.04 40501 -2.11 68010 -0.87 1A,AR AAS
MINELAB 181000 0.08 195211 -0.07 15435 -0.93 29453 0.04 45000 1.25 72001 0.88 AR AAS
MINELAB 179700 -0.19 194700 -0.17 15391 -1.01 28673 -0.81 45192 1.39 70500 0.22 4A AAS
MINELAB 173822 -1.42 186369 -1.83 15240 -1.28 29401 -0.02 40501 -2.11 67931 -0.90 FUS ICP
MINELAB 185433 1.01 193150 -0.48 15739 -0.40 29586 0.19 44065 0.55 68542 -0.64 AR,VOL AAS
MINELAB 182291 0.35 194169 -0.27 15989 0.04 29302 -0.13 43686 0.27 71910 0.84 4A AAS
Highlighted values are outliers which are assigned a z-score of -3.00 or 3.00 in the standardised values.
Method Reading
Alex Stewart International Argentina SA - Perito Moreno Report Page 39
Ore Grade Copper Assay - Mean of Absolute Standardized Values - April 2019 Ore Grade Copper Assay - Mean of Standardized Values - April 2019
Standard Deviations Standard Deviations
ASA MENDOZA
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Ore Grade Lead Round Robin - Summary Statistics, Assays, Standardised Values and Graphs - April 2019
Standard Reference GBM319-11 GBM319-12 GBM319-13 GBM319-14 GBM319-15 GBM319-16
MEAN (ppm) 11393 2128 66 7275 69 12
STDEV (ppm) 439 114 11 178 20 7
95% CI (ppm) 85 22 3 36 4 2
95% CI (%) 0.74% 1.02% 3.98% 0.49% 6.26% 21.16% Ore Grade Lead Assay - Mean of Absolute Standardized Values - April 2019MIN (ppm) 10195 1877 40 6900 19 3
MEDIAN (ppm) 11349 2121 66 7250 64 10
MAX (ppm) 12585 2456 93 7690 121 25
IQR (ppm) 492 113 11 253 19 14
COUNT 104 107 72 95 80 36
Standard Reference GBM319-11 GBM319-12 GBM319-13 GBM319-14 GBM319-15 GBM319-16
Lab Reference assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score
ASA MENDOZA 11535 0.32 2171 0.37 <100 bld 7394 0.67 <100 bld <100 bld 3A ES
COMLAB 12000 1.38 2240 0.98 60 -0.51 7420 0.81 80 0.53 <100 bld FUS ICP
COMLAB 11050 -0.78 1918 -1.84 55 -0.95 7002 -1.53 50 -0.99 19 0.97 4A ES
COMLAB 11200 -0.44 2050 -0.68 130 3.00 7260 -0.09 60 -0.48 <30 bld 4A ES
COMLAB 11289 -0.24 2104 -0.21 <100 bld 7327 0.29 <100 bld <100 bld 4A AAS
COMLAB 10690 -1.60 1877 -2.19 <100 bld 7120 -0.87 <100 bld <100 bld FUS ES
COMLAB 11199 -0.44 2115 -0.11 47 -1.66 7021 -1.43 57 -0.63 11 -0.10 4A ES
COMLAB 11350 -0.10 2090 -0.33 70 0.38 7490 1.21 60 -0.48 <10 bld 4A ES
COMLAB 11400 0.02 2300 1.50 200 3.00 7100 -0.98 300 3.00 <100 bld FUS XRF
COMLAB 11350 -0.10 2180 0.45 40 -2.29 7150 -0.70 50 -0.99 <10 bld 4A ES
COMLAB 11600 0.47 2160 0.28 60 -0.51 7230 -0.25 60 -0.48 <50 bld FUS ES
COMLAB 11650 0.59 2090 -0.33 70 0.38 7250 -0.14 90 1.04 20 1.11 4A ES
COMLAB 11400 0.02 2180 0.45 80 1.27 7130 -0.82 70 0.03 <10 bld 4A ICP
COMLAB 11050 -0.78 2090 -0.33 60 -0.51 7280 0.03 70 0.03 10 -0.23 4A ES
COMLAB 11500 0.24 2200 0.63 nr nr 7500 1.26 nr nr nr nr 4A ES
COMLAB 11200 -0.44 2100 -0.25 60 -0.51 7150 -0.70 50 -0.99 <10 bld 4A ES
COMLAB 11300 -0.21 2000 -1.12 <100 bld 7200 -0.42 <100 bld <100 bld AR ES
COMLAB 11200 -0.44 2080 -0.42 60 -0.51 7260 -0.09 60 -0.48 <10 bld AR ES
COMLAB 10950 -1.01 2100 -0.25 60 -0.51 7230 -0.25 70 0.03 <10 bld AR ES
COMLAB 11050 -0.78 2190 0.54 60 -0.51 7240 -0.20 60 -0.48 <10 bld 4A ES
COMLAB 11150 -0.55 2130 0.02 70 0.38 7330 0.31 70 0.03 10 -0.23 AR AAS
COMLAB 11750 0.81 2130 0.02 60 -0.51 7160 -0.65 60 -0.48 <10 bld 4A AAS
COMLAB 11150 -0.55 2150 0.19 60 -0.51 7000 -1.55 70 0.03 <10 bld 4A ES
COMLAB 11500 0.24 2120 -0.07 50 -1.40 7200 -0.42 60 -0.48 <10 bld 4A ES
COMLAB 11400 0.02 2200 0.63 nr nr 7500 1.26 nr nr nr nr 4A AAS
COMLAB 11028 -0.83 2699 3.00 75 0.82 6924 -1.97 83 0.69 4 -1.03 5A ES
COMLAB 11700 0.70 2100 -0.25 <200 bld 7200 -0.42 <200 bld <200 bld 4A AAS
COMLAB 11600 0.47 2140 0.10 84 1.62 7250 -0.14 56 -0.68 <50 bld 3A ES
COMLAB 11999 1.38 1976 -1.33 nr nr 7577 1.70 nr nr nr nr
COMLAB 11174 -0.50 2041 -0.76 46 -1.79 7212 -0.35 32 -1.88 nr nr 4A AAS
COMLAB 11279 -0.26 1907 -1.93 <100 bld 7617 1.92 <100 bld <100 bld AR AAS
COMLAB 12017 1.42 2130 0.02 62 -0.33 7290 0.08 71 0.08 bld bld 3A AAS
COMLAB 11600 0.47 2230 0.89 64 -0.16 7250 -0.14 60 -0.48 4 -1.03 4A MS
COMLAB 11834 1.01 2294 1.45 <100 bld 7035 -1.35 <100 bld <100 bld AR ES
COMLAB 11090 -0.69 2050 -0.68 70 0.38 7420 0.81 60 -0.48 <10 bld 4A AAS
COMLAB 11700 0.70 2160 0.28 70 0.38 7300 0.14 71 0.08 14 0.31 4A ES
COMLAB 11190 -0.46 2210 0.72 66 0.02 7215 -0.34 75 0.28 <10 bld 4A ES
COMLAB 11700 0.70 2500 3.00 100 3.00 7500 1.26 100 1.55 100 3.00 AR ES
COMLAB 11326 -0.15 2159 0.27 61 -0.42 7409 0.75 64 -0.28 5 -0.90 4A AAS
COMLAB 11800 0.93 2130 0.02 <125 bld 7320 0.25 <125 bld <125 bld 4A ICP
COMLAB 11300 -0.21 2140 0.10 90 2.15 6990 -1.60 90 1.04 25 1.78 4A AAS
COMLAB 10870 -1.19 2212 0.73 68 0.16 6727 -3.00 107 1.90 76 3.00 4A ES
COMLAB 11141 -0.57 2109 -0.17 69 0.29 7327 0.29 56 -0.68 4 -1.03 4A AAS,MS
COMLAB 11960 1.29 2533 3.00 <100 bld 7327 0.29 131 3.00 115 3.00 AR ES
COMLAB 12215 1.87 2170 0.37 59 -0.60 7233 -0.24 56 -0.68 <50 bld 4A ES
COMLAB 11260 -0.30 2131 0.03 57 -0.78 7029 -1.38 58 -0.58 <50 bld 4A ES
COMLAB 11600 0.47 2048 -0.70 72 0.55 7215 -0.34 68 -0.07 <20 bld 4A ES
COMLAB 11800 0.93 2300 1.50 100 3.00 7500 1.26 100 1.55 100 3.00 4A AAS
COMLAB 11265 -0.29 1983 -1.27 59 -0.60 7156 -0.67 58 -0.58 4 -1.03 4A ICP
COMLAB 11794 0.91 2151 0.20 47 -1.71 7246 -0.16 52 -0.90 <3 bld 4A ES
COMLAB 11256 -0.31 2150 0.19 56 -0.87 7400 0.70 58 -0.58 <10 bld 4A ES
COMLAB 10590 -1.83 2201 0.64 166 3.00 8281 3.00 142 3.00 24 1.63 FUS XRF
COMLAB 11290 -0.23 2081 -0.41 65 -0.07 6994 -1.58 62 -0.38 67 3.00 AR ES
COMLAB 11600 0.47 2148 0.17 nr nr 7535 1.46 63 -0.33 4 -1.03 4A ICP
COMLAB 10744 -1.48 2132 0.03 62 -0.33 6999 -1.55 58 -0.58 <20 bld 4A ES
COMLAB 11500 0.24 2400 2.37 <500 bld 7200 -0.42 <500 bld <500 bld AR MS
COMLAB 11372 -0.05 2104 -0.21 <100 bld 7426 0.85 <100 bld <100 bld 4A ES
COMLAB 11079 -0.71 1953 -1.53 55 -0.95 6662 -3.00 47 -1.14 <20 bld ES
COMLAB 9971 -3.00 2041 -0.76 <100 bld 6633 -3.00 <100 bld <100 bld 3A AAS
COMLAB 11087 -0.70 1973 -1.36 66 0.02 7331 0.31 58 -0.58 <3.5 bld 4A ES
COMLAB 9982 -3.00 2032 -0.84 68 0.20 7370 0.53 61 -0.43 9 -0.36 3A ICP
COMLAB 11776 0.87 2107 -0.18 59 -0.60 7174 -0.57 60 -0.48 24 1.64 FUS,4A ICP
COMLAB 11310 -0.19 2168 0.35 64 -0.15 7008 -1.50 58 -0.59 3 -1.19 AR ICP,AAS
COMLAB 11569 0.40 2047 -0.71 71 0.45 7404 0.72 66 -0.19 14 0.30 4A AAS
COMLAB 11900 1.16 2240 0.98 110 3.00 7570 1.66 110 2.05 <100 bld 4A AAS
COMLAB 11606 0.49 2137 0.08 93 2.42 7175 -0.56 86 0.84 <10 bld 4A AAS
COMLAB 11317 -0.17 2087 -0.36 71 0.47 7198 -0.43 68 -0.07 7 -0.63 4A AAS
COMLAB 12100 1.61 2350 1.94 70 0.38 7350 0.42 95 1.29 40 3.00 4A AAS
COMLAB 10900 -1.12 2270 1.24 61 -0.42 7915 3.00 64 -0.28 4 -1.03 AR MS
COMLAB 11893 1.14 2456 2.87 105 3.00 7337 0.35 113 2.21 95 3.00 FUS ICP
COMLAB 11200 -0.44 1950 -1.56 60 -0.51 7190 -0.48 65 -0.23 <25 bld 4A ES
COMLAB 11794 0.91 2424 2.58 88 1.99 7429 0.86 109 1.99 72 3.00 4A ICP,AAS
COMLAB 12212 1.87 2100 -0.25 76 0.91 7084 -1.07 92 1.14 <20 bld FUS,4A ES,MS,AAS
COMLAB 12034 1.46 2081 -0.41 <100 bld 7431 0.88 <100 bld <100 bld FUS ICP
COMLAB 11628 0.54 2086 -0.37 71 0.47 7100 -0.98 77 0.38 21 1.24 4A ES
COMLAB 11236 -0.36 2259 1.14 75 0.82 7894 3.00 75 0.28 <5 bld 3A ICP
COMLAB 10415 -2.23 2064 -0.56 69 0.29 7356 0.45 70 0.03 5 -0.90 3A AAS
COMLAB 11480 0.20 2157 0.25 nr nr 7114 -0.91 nr nr nr nr 4A AAS
COMLAB 11300 -0.21 2110 -0.16 175 3.00 7690 2.33 121 2.61 158 3.00 3A ES
COMLAB 11097 -0.67 2143 0.13 49 -1.49 7414 0.78 19 -2.56 <10 bld AR AAS
COMLAB 11190 -0.46 2029 -0.87 <100 bld 7496 1.24 <100 bld <100 bld 1A AAS
COMLAB 11271 -0.28 2083 -0.39 70 0.38 7249 -0.15 58 -0.58 5 -0.90 AR ES
MINELAB 11200 -0.44 2200 0.63 68 0.20 7130 -0.82 63 -0.33 <5 bld 3A AAS
MINELAB 11610 0.49 2207 0.69 87 1.89 7860 3.00 75 0.28 64 3.00 AD ES
MINELAB 11160 -0.53 1924 -1.78 61 -0.42 7676 2.25 62 -0.38 3 -1.16 AAS
MINELAB 11400 0.02 2300 1.50 nr nr 7400 0.70 nr nr nr nr 4A AAS
MINELAB 11300 -0.21 2200 0.63 <500 bld 7300 0.14 <500 bld <500 bld 3A AAS
MINELAB 12270 2.00 2199 0.62 54 -1.04 7937 3.00 41 -1.44 bld bld 3A ES
MINELAB 11488 0.22 2171 0.37 63 -0.22 7602 1.84 61 -0.44 <10 bld AR ES
MINELAB 11900 1.16 2100 -0.25 <100 bld 6900 -2.11 <100 bld <100 bld FUS XRF
MINELAB 13640 3.00 3091 3.00 8833 3.00 9338 3.00 120 2.56 19 0.97
MINELAB 8770 -3.00 2001 -1.11 89 2.09 6480 -3.00 129 3.00 129 3.00 AR ICP
MINELAB 10195 -2.73 1915 -1.86 <100 bld 7095 -1.01 <100 bld <100 bld AR ES
MINELAB 12585 2.71 2398 2.36 56 -0.91 8331 3.00 52 -0.89 11 -0.16 AR ES
MINELAB 11534 0.32 2099 -0.25 71 0.50 7462 1.05 65 -0.23 5 -0.90 AR MS
MINELAB 10848 -1.24 2063 -0.57 61 -0.44 7343 0.38 55 -0.74 7 -0.66 AR ES
MINELAB 10345 -2.39 1946 -1.59 127 3.00 7149 -0.71 182 3.00 38 3.00 4A ES
MINELAB 10237 -2.63 1907 -1.93 86 1.80 7468 1.08 82 0.64 20 1.11 AR ICP
MINELAB 10873 -1.18 2121 -0.07 75 0.81 7437 0.91 104 1.76 25 1.82 AR ES
MINELAB 10505 -2.02 2046 -0.72 68 0.20 5516 -3.00 101 1.60 35 3.00 3A ES
MINELAB 12175 1.78 2423 2.58 83 1.52 7832 3.00 104 1.76 66 3.00 AR ES
MINELAB 11910 1.18 1964 -1.43 42 -2.14 6910 -2.05 39 -1.56 25 1.71 3A,MICR ES
MINELAB 11953 1.28 2377 2.17 169 3.00 7246 -0.16 166 3.00 103 3.00 FUS XRF
MINELAB 11109 -0.65 2117 -0.10 bld bld 7194 -0.46 bld bld bld bld AR AAS
MINELAB 12993 3.00 2189 0.53 118 3.00 8081 3.00 61 -0.43 15 0.42 AAS
MINELAB 11357 -0.08 2100 -0.25 69 0.24 7187 -0.50 70 0.05 14 0.25 3A AAS
MINELAB 9927 -3.00 2091 -0.32 <100 bld 6555 -3.00 <100 bld <100 bld 3A AAS
MINELAB 11828 0.99 2221 0.81 68 0.20 7502 1.27 61 -0.43 8 -0.50 AR AAS
MINELAB 11480 0.20 2150 0.19 76 0.91 7360 0.48 83 0.69 9 -0.43 4A AAS
MINELAB 12095 1.60 2111 -0.15 <200 bld 7413 0.77 <200 bld <200 bld FUS ICP
MINELAB 11348 -0.10 2056 -0.63 69 0.31 7160 -0.65 77 0.40 13 0.15 AR AAS
MINELAB 11297 -0.22 2167 0.34 145 3.00 7371 0.54 <100 bld <100 bld 4A AAS
Highlighted values are outliers which are assigned a z-score of -3.00 or 3.00 in the standardised values. Insufficient reliable results were received for the highlighted materials. These results do not contribute to the error charts.
Method Reading
Alex Stewart International Argentina SA - Perito Moreno Report Page 41
Ore Grade Lead Assay - Mean of Absolute Standardized Values - April 2019 Ore Grade Lead Assay - Mean of Standardized Values - April 2019
Standard Deviations Standard Deviations
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Ore Grade Zinc Round Robin - Summary Statistics, Assays, Standardised Values and Graphs - April 2019
Standard Reference GBM319-11 GBM319-12 GBM319-13 GBM319-14 GBM319-15 GBM319-16
MEAN (ppm) 15795 8434 454 22511 681 23
STDEV (ppm) 557 307 39 856 45 7
95% CI (ppm) 105 58 7 161 8 2
95% CI (%) 0.67% 0.69% 1.62% 0.71% 1.24% 8.19% Ore Grade Zinc Assay - Mean of Absolute Standardized Values - April 2019MIN (ppm) 14243 7598 356 20400 571 6
MEDIAN (ppm) 15811 8418 459 22400 683 21
MAX (ppm) 17259 9260 542 24908 800 40
IQR (ppm) 698 363 53 1026 45 9
COUNT 109 108 107 110 109 63
Standard Reference GBM319-11 GBM319-12 GBM319-13 GBM319-14 GBM319-15 GBM319-16
Lab Reference assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score
MAXXAM ONTARIO 15400 -0.71 8500 0.22 440 -0.36 22500 -0.01 610 -1.59 <200 bld NAA
ASA MENDOZA 15980 0.33 8751 1.03 401 -1.36 22489 -0.03 661 -0.45 <100 bld 3A ES
COMLAB 16400 1.09 8760 1.06 480 0.68 21900 -0.71 680 -0.03 20 -0.36 FUS ICP
COMLAB 16210 0.74 8620 0.61 420 -0.87 20830 -1.96 610 -1.59 20 -0.36 4A ES
COMLAB 15800 0.01 8410 -0.08 470 0.42 22100 -0.48 690 0.19 20 -0.36 4A ES
COMLAB 15556 -0.43 8344 -0.29 527 1.89 23043 0.62 715 0.75 <100 bld 4A AAS
COMLAB 16280 0.87 8523 0.29 470 0.42 23000 0.57 692 0.24 <100 bld FUS ES
COMLAB 15750 -0.08 8451 0.06 405 -1.26 22062 -0.52 614 -1.50 95 3.00 4A ES
COMLAB 16050 0.46 8300 -0.43 510 1.45 22000 -0.60 700 0.42 10 -1.70 4A ES
COMLAB 15600 -0.35 8200 -0.76 200 -3.00 22200 -0.36 500 -3.00 <100 bld FUS XRF
COMLAB 15900 0.19 8830 1.29 470 0.42 22200 -0.36 670 -0.25 <10 bld 4A ES
COMLAB 16350 1.00 8630 0.64 430 -0.61 22600 0.10 680 -0.03 30 0.98 FUS ES
COMLAB 16700 1.62 8550 0.38 510 1.45 23000 0.57 750 1.53 20 -0.36 4A ES
COMLAB 16100 0.55 8820 1.26 510 1.45 22700 0.22 710 0.64 10 -1.70 4A ICP
COMLAB 15500 -0.53 8420 -0.04 510 1.45 22400 -0.13 680 -0.03 30 0.98 4A ES
COMLAB 16100 0.55 8720 0.93 nr nr 22900 0.45 nr nr nr nr 4A ES
COMLAB 15900 0.19 8380 -0.17 480 0.68 22100 -0.48 710 0.64 30 0.98 4A ES
COMLAB 15300 -0.89 8100 -1.08 400 -1.39 22000 -0.60 700 0.42 <100 bld AR ES
COMLAB 15600 -0.35 8280 -0.50 420 -0.87 22700 0.22 670 -0.25 10 -1.70 AR ES
COMLAB 15450 -0.62 8420 -0.04 430 -0.61 22900 0.45 680 -0.03 20 -0.36 AR ES
COMLAB 16050 0.46 8700 0.87 460 0.16 22400 -0.13 670 -0.25 <10 bld 4A ES
COMLAB 16050 0.46 8110 -1.05 520 1.71 22400 -0.13 710 0.64 nr nr 4A AAS
COMLAB 16050 0.46 8360 -0.24 430 -0.61 21100 -1.65 670 -0.25 10 -1.70 AR AAS
COMLAB 15650 -0.26 8320 -0.37 480 0.68 21900 -0.71 680 -0.03 20 -0.36 4A AAS
COMLAB 15700 -0.17 8670 0.77 500 1.19 22200 -0.36 720 0.86 30 0.98 4A ES
COMLAB 15900 0.19 8490 0.18 510 1.45 22200 -0.36 700 0.42 30 0.98 4A ES
COMLAB 15800 0.01 8300 -0.43 nr nr 21700 -0.95 nr nr nr nr 4A AAS
COMLAB 15930 0.24 8910 1.55 464 0.26 22797 0.33 699 0.39 36 1.78 5A ES
COMLAB 12555 -3.00 6921 -3.00 700 3.00 16670 -3.00 1041 3.00 77 3.00 AR AAS
COMLAB 16500 1.26 8700 0.87 500 1.19 22800 0.34 700 0.42 <100 bld 4A AAS
COMLAB 16100 0.55 8250 -0.60 483 0.75 21700 -0.95 716 0.77 <50 bld 3A ES
COMLAB nr nr 8606 0.56 413 -1.05 22662 0.18 666 -0.34 <50 bld 4A AAS
COMLAB 15330 -0.83 8109 -1.06 394 -1.54 22071 -0.51 652 -0.65 nr nr 4A AAS
COMLAB 15414 -0.68 8082 -1.14 nr nr 21783 -0.85 681 -0.01 25 0.31 4A AAS
COMLAB 15755 -0.07 9152 2.34 446 -0.20 23856 1.57 696 0.33 <100 bld AR AAS
COMLAB 15670 -0.22 8119 -1.02 418 -0.92 22570 0.07 662 -0.43 bld bld 3A AAS
COMLAB 15700 -0.17 8560 0.41 470 0.42 22000 -0.60 690 0.19 20 -0.36 4A ES
COMLAB 16727 1.67 9706 3.00 441 -0.33 23739 1.43 689 0.17 <100 bld AR ES
COMLAB 15240 -1.00 8400 -0.11 460 0.16 22210 -0.35 640 -0.92 20 -0.36 4A AAS
COMLAB 16100 0.55 8840 1.32 480 0.68 20800 -2.00 770 1.98 35 1.65 4A ES
COMLAB 16130 0.60 8778 1.12 488 0.88 22510 0.00 722 0.91 19 -0.49 4A ES
COMLAB 15100 -1.25 8200 -0.76 400 -1.39 21700 -0.95 700 0.42 50 3.00 AR ES
COMLAB 15541 -0.46 8423 -0.03 460 0.16 22044 -0.55 653 -0.63 26 0.44 4A AAS
COMLAB 16500 1.26 8550 0.38 474 0.52 22500 -0.01 689 0.17 <25 bld 4A ICP
COMLAB 15500 -0.53 8280 -0.50 469 0.39 21200 -1.53 669 -0.28 37 1.92 4A AAS
COMLAB 15273 -0.94 8166 -0.87 458 0.11 21825 -0.80 649 -0.71 28 0.72 4A ES
COMLAB 16347 0.99 8627 0.63 472 0.47 23103 0.69 696 0.33 29 0.85 4A AAS,MS
COMLAB 15943 0.27 8008 -1.38 415 -1.00 22011 -0.58 593 -1.96 <100 bld AR ES
COMLAB 16188 0.70 8634 0.65 505 1.32 23092 0.68 695 0.30 30 0.98 4A ES
COMLAB 15888 0.17 8496 0.20 420 -0.87 22532 0.02 706 0.55 <50 bld 4A ES
COMLAB 16200 0.73 8403 -0.10 484 0.78 22300 -0.25 686 0.10 28 0.71 4A ES
COMLAB 15000 -1.43 8100 -1.08 500 1.19 21800 -0.83 800 2.65 100 3.00 4A AAS
COMLAB 15687 -0.19 8525 0.30 484 0.78 22093 -0.49 684 0.06 23 0.04 4A ICP
COMLAB 15930 0.24 8420 -0.04 459 0.13 22752 0.28 687 0.13 20 -0.41 4A ES
COMLAB 15400 -0.71 8580 0.48 476 0.57 22380 -0.15 677 -0.10 21 -0.23 4A ES
COMLAB 15658 -0.25 8982 1.78 387 -1.74 24908 2.80 631 -1.11 21 -0.20 FUS XRF
COMLAB 32600 3.00 24400 3.00 16600 3.00 22800 0.34 14500 3.00 12000 3.00 IH
COMLAB 15900 0.19 8671 0.77 422 -0.82 21510 -1.17 708 0.59 372 3.00 AR ES
COMLAB 15450 -0.62 8178 -0.83 nr nr 23200 0.80 609 -1.61 28 0.71 4A ICP
COMLAB 15339 -0.82 8536 0.33 460 0.16 21776 -0.86 706 0.55 <20 bld 4A ES
COMLAB 16400 1.09 8800 1.19 700 3.00 23300 0.92 800 2.65 <500 bld AR MS
COMLAB 16731 1.68 8564 0.42 443 -0.28 22499 -0.01 669 -0.28 <100 bld FUS,4A ES
COMLAB 15930 0.24 9531 3.00 449 -0.12 23525 1.18 708 0.59 40 2.32 AR AAS
COMLAB 15811 0.03 8240 -0.63 428 -0.67 22384 -0.15 668 -0.30 17 -0.76 ES
COMLAB 14960 -1.50 8465 0.10 453 -0.02 20400 -2.47 646 -0.79 <100 bld 3A AAS
COMLAB 14434 -2.44 6942 -3.00 437 -0.43 21244 -1.48 608 -1.63 26 0.44 4A ES
COMLAB 16148 0.63 8705 0.88 433 -0.54 24489 2.31 642 -0.88 19 -0.49 3A ICP
COMLAB 16408 1.10 8205 -0.74 473 0.50 22250 -0.31 674 -0.16 23 0.04 FUS,4A ICP
COMLAB 13463 -3.00 7364 -3.00 425 -0.74 21646 -1.01 673 -0.19 17 -0.76 AR ICP,AAS
COMLAB 16927 2.03 8290 -0.47 459 0.15 22306 -0.24 638 -0.96 20 -0.34 4A AAS
COMLAB 15400 -0.71 8270 -0.53 510 1.45 22300 -0.25 700 0.42 <100 bld 4A AAS
COMLAB 14943 -1.53 8175 -0.84 418 -0.92 21694 -0.95 580 -2.26 24 0.18 4A AAS
COMLAB 16026 0.41 8271 -0.53 490 0.94 22318 -0.23 665 -0.36 24 0.18 4A AAS
COMLAB 15538 -0.46 7598 -2.72 413 -1.06 22242 -0.31 710 0.65 <20 bld 3A AAS
COMLAB 16200 0.73 8900 1.52 485 0.81 22400 -0.13 700 0.42 <25 bld 4A AAS
COMLAB 15600 -0.35 8460 0.09 377 -1.98 21900 -0.71 654 -0.61 17 -0.76 AR MS
COMLAB 16350 1.00 8410 -0.08 450 -0.10 23010 0.58 640 -0.92 <40 bld FUS XRF
COMLAB 15800 0.01 8470 0.12 455 0.03 22900 0.45 655 -0.59 50 3.00 4A ES
COMLAB 16667 1.56 8556 0.40 470 0.41 23129 0.72 670 -0.25 39 2.20 4A ICP,AAS
COMLAB 16192 0.71 8574 0.46 509 1.43 23169 0.77 695 0.30 21 -0.23 FUS ES
COMLAB 16723 1.66 8416 -0.06 500 1.19 23209 0.82 693 0.26 <100 bld FUS ICP
COMLAB 18401 3.00 9157 2.35 509 1.43 24058 1.81 760 1.75 25 0.31 4A ES
COMLAB 16094 0.54 9260 2.69 463 0.24 23710 1.40 728 1.04 26 0.44 3A ICP
COMLAB 14470 -2.38 8367 -0.22 448 -0.15 22098 -0.48 672 -0.21 47 3.00 3A AAS
COMLAB 16037 0.43 8677 0.79 434 -0.51 21928 -0.68 668 -0.30 nr nr 4A AAS
COMLAB 16630 1.50 8830 1.29 494 1.04 23040 0.62 683 0.04 19 -0.47 3A ES
COMLAB 16310 0.92 8395 -0.13 439 -0.38 23301 0.92 710 0.64 11 -1.57 AR AAS
COMLAB 15920 0.22 8607 0.56 439 -0.38 22120 -0.46 692 0.24 <100 bld 1A AAS
COMLAB 15594 -0.36 8211 -0.72 431 -0.59 24332 2.13 610 -1.59 19 -0.49 AR ES
MINELAB 15580 -0.39 8020 -1.35 490 0.94 20940 -1.84 750 1.53 120 3.00 AD ES
MINELAB 15206 -1.06 8154 -0.91 421 -0.85 24000 1.74 632 -1.10 29 0.85 AAS
MINELAB 16200 0.73 7700 -2.39 500 1.19 21800 -0.83 800 2.65 nr nr 4A AAS
MINELAB 15000 -1.43 8400 -0.11 400 -1.39 24850 2.73 700 0.42 <500 bld 3A AAS
MINELAB 15546 -0.45 2881 -3.00 356 -2.53 21655 -1.00 455 -3.00 23 0.04 AR AAS
MINELAB 16417 1.12 8589 0.51 430 -0.61 23635 1.31 693 0.26 6 -2.24 3A ES
MINELAB 17586 3.00 10176 3.00 542 2.28 23025 0.60 995 3.00 549 3.00 AR ES
MINELAB 15900 0.19 8400 -0.11 200 -3.00 22100 -0.48 400 -3.00 <100 bld FUS XRF
MINELAB 15180 -1.10 9535 3.00 480 0.68 26570 3.00 719 0.84 69 3.00
MINELAB 17627 3.00 9470 3.00 460 0.16 15678 -3.00 642 -0.89 107 3.00 3A ES
MINELAB 10695 -3.00 6309 -3.00 330 -3.00 17052 -3.00 473 -3.00 10 -1.69 AR ICP
MINELAB 14730 -1.91 7810 -2.03 430 -0.61 22830 0.37 680 -0.03 <100 bld AR ES
MINELAB 16677 1.58 8826 1.28 387 -1.72 23475 1.13 611 -1.56 14 -1.14 AR ES
MINELAB 15999 0.37 8851 1.36 411 -1.10 23337 0.97 700 0.41 20 -0.32 AR MS
MINELAB 15546 -0.45 8034 -1.30 425 -0.73 19012 -3.00 694 0.27 20 -0.42 AR ES
MINELAB 12898 -3.00 7781 -2.12 592 3.00 18592 -3.00 782 2.25 266 3.00 4A ES
MINELAB 15034 -1.37 8170 -0.86 419 -0.90 24033 1.78 685 0.08 78 3.00 AR ICP
MINELAB 15009 -1.41 8359 -0.24 451 -0.07 22350 -0.19 624 -1.29 17 -0.73 AR ES
MINELAB 14619 -2.11 7995 -1.43 428 -0.67 16544 -3.00 669 -0.28 22 -0.09 3A ES
MINELAB 16349 0.99 8432 -0.01 433 -0.55 23026 0.60 704 0.50 73 3.00 AR ES
MINELAB 17259 2.63 7801 -2.06 384 -1.80 22612 0.12 571 -2.46 <2 bld 3A,MICR ES
MINELAB 14243 -2.78 7933 -1.63 409 -1.16 19131 -3.00 579 -2.28 <8 bld FUS XRF
MINELAB 15773 -0.04 8438 0.01 464 0.26 22148 -0.42 699 0.39 bld bld AR AAS
MINELAB 15600 -0.35 8300 -0.43 475 0.55 23300 0.92 632 -1.10 33 1.38 AR AAS
MINELAB 17811 3.00 9239 2.62 477 0.60 24276 2.06 786 2.33 96 3.00 AAS
MINELAB 15311 -0.87 8192 -0.79 386 -1.76 20899 -1.88 674 -0.17 19 -0.53 3A AAS
MINELAB 15086 -1.27 8355 -0.26 460 0.16 19772 -3.00 718 0.82 <100 bld 3A AAS
MINELAB 16008 0.38 8370 -0.21 371 -2.15 21450 -1.24 602 -1.78 18 -0.63 AR AAS
MINELAB 15425 -0.66 8125 -1.00 500 1.19 21645 -1.01 650 -0.70 22 -0.08 4A AAS
MINELAB 16050 0.46 8600 0.54 330 -3.00 22601 0.10 485 -3.00 <200 bld FUS ICP
MINELAB 15086 -1.27 8335 -0.32 480 0.68 22090 -0.49 727 1.01 33 1.38 AR AAS
MINELAB 16172 0.68 8406 -0.09 469 0.40 23109 0.70 632 -1.09 107 3.00 4A AAS
Highlighted values are outliers which are assigned a z-score of -3.00 or 3.00 in the standardised values. Insufficient reliable results were received for the highlighted materials. These results do not contribute to the error charts.
Method Reading
Alex Stewart International Argentina SA - Perito Moreno Report Page 43
Ore Grade Zinc Assay - Mean of Absolute Standardized Values - April 2019 Ore Grade Zinc Assay - Mean of Standardized Values - April 2019
Standard Deviations Standard Deviations
MAXXAM ONTARIO
ASA MENDOZA
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ASA MENDOZA
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Alex Stewart International Argentina SA - Perito Moreno ReportPage 44
Ore Grade Nickel Round Robin - Summary Statistics, Assays, Standardised Values and Graphs - April 2019
Standard Reference GBM319-11 GBM319-12 GBM319-13 GBM319-14 GBM319-15 GBM319-16
MEAN (ppm) 914 2069 75 297 9 55
STDEV (ppm) 68 125 15 16 2 7
95% CI (ppm) 13 25 3 3 1 2
95% CI (%) 1.46% 1.22% 4.19% 1.13% 6.96% 2.99% Ore Grade Nickel Assay - Mean of Absolute Standardized Values - April 2019MIN (ppm) 728 1737 40 256 5 34
MEDIAN (ppm) 920 2090 78 299 9 56
MAX (ppm) 1103 2375 115 339 15 75
IQR (ppm) 66 141 21 16 2 10
COUNT 100 96 83 90 54 81
Standard Reference GBM319-11 GBM319-12 GBM319-13 GBM319-14 GBM319-15 GBM319-16
Lab Reference assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score
MAXXAM ONTARIO 880 -0.51 2100 0.25 100 1.70 310 0.77 <20 bld 60 0.68 NAA
ASA MENDOZA 914 0.00 2171 0.82 68 -0.50 298 0.03 22 3.00 63 1.08 3A ES
COMLAB 960 0.68 2140 0.57 80 0.33 310 0.77 <50 bld 60 0.68 FUS ICP
COMLAB 916 0.03 2134 0.52 81 0.40 298 0.03 6 -1.42 53 -0.26 4A ES
COMLAB 960 0.68 2190 0.97 110 2.39 330 2.01 <30 bld 60 0.68 4A ES
COMLAB 882 -0.48 2120 0.41 <100 bld 309 0.71 <100 bld <100 bld 4A AAS
COMLAB 913 -0.02 2142 0.58 <100 bld 303 0.34 <100 bld <100 bld FUS ES
COMLAB 820 -1.39 2034 -0.28 79 0.26 245 -3.00 10 0.22 49 -0.79 4A ES
COMLAB 940 0.38 2110 0.33 90 1.01 300 0.16 10 0.22 60 0.68 4A ES
COMLAB 1000 1.27 2800 3.00 400 3.00 500 3.00 <100 bld <100 bld FUS XRF
COMLAB 920 0.09 2200 1.05 70 -0.36 290 -0.46 <10 bld 50 -0.66 4A ES
COMLAB 910 -0.06 2100 0.25 70 -0.36 270 -1.69 10 0.22 60 0.68 FUS ES
COMLAB 960 0.68 2030 -0.31 90 1.01 300 0.16 10 0.22 60 0.68 4A ES
COMLAB 920 0.09 2120 0.41 70 -0.36 300 0.16 <10 bld 50 -0.66 4A ICP
COMLAB 900 -0.21 2030 -0.31 80 0.33 290 -0.46 10 0.22 50 -0.66 4A ES
COMLAB 950 0.53 2070 0.01 70 -0.36 300 0.16 <10 bld 50 -0.66 4A ES
COMLAB 880 -0.51 2050 -0.15 60 -1.04 300 0.16 <10 bld 60 0.68 AR ES
COMLAB 900 -0.21 2070 0.01 40 -2.42 280 -1.08 <10 bld 30 -3.00 AR ES
COMLAB 890 -0.36 2090 0.17 60 -1.04 280 -1.08 10 0.22 40 -1.99 AR ES
COMLAB 910 -0.06 2110 0.33 90 1.01 300 0.16 10 0.22 60 0.68 4A ES
COMLAB 930 0.23 2080 0.09 70 -0.36 300 0.16 <10 bld 60 0.68 AR AAS
COMLAB 930 0.23 2110 0.33 80 0.33 300 0.16 10 0.22 50 -0.66 4A ES
COMLAB 930 0.23 2110 0.33 80 0.33 300 0.16 10 0.22 60 0.68 4A ES
COMLAB 1000 1.27 2100 0.25 nr nr nr nr nr nr nr nr 4A AAS
COMLAB 822 -1.36 1923 -1.17 83 0.53 293 -0.27 9 -0.19 59 0.54 5A ES
COMLAB 822 -1.36 1979 -0.72 119 3.00 339 2.56 79 3.00 45 -1.32 AR AAS
COMLAB 940 0.38 2200 1.05 80 0.33 320 1.39 <10 bld 60 0.68 4A AAS
COMLAB 967 0.78 2070 0.01 110 2.39 313 0.96 24 3.00 78 3.00 3A ES
COMLAB 936 0.32 2160 0.73 57 -1.25 289 -0.52 bld bld 53 -0.26 3A AAS
COMLAB 920 0.09 2140 0.57 85 0.67 300 0.16 15 2.26 65 1.35 4A ES
COMLAB 980 0.97 2227 1.26 55 -1.39 291 -0.40 <10 bld 47 -1.06 AR ES
COMLAB 800 -1.69 1900 -1.35 <100 bld 300 0.16 <100 bld <100 bld 4A AAS
COMLAB 955 0.60 2200 1.05 90 1.01 305 0.47 15 2.26 60 0.68 4A ES
COMLAB 968 0.80 2154 0.68 83 0.53 315 1.08 5 -1.82 58 0.41 4A ES
COMLAB 1089 2.58 2533 3.00 58 -1.18 306 0.53 18 3.00 58 0.41
COMLAB 887 -0.40 2206 1.10 80 0.33 292 -0.34 9 -0.19 55 0.01 4A AAS
COMLAB 946 0.47 2100 0.25 86 0.74 296 -0.09 <25 bld 55 0.01 4A ICP
COMLAB 967 0.78 1930 -1.11 140 3.00 324 1.64 26 3.00 75 2.68 4A ES
COMLAB 951 0.55 2184 0.92 85 0.67 306 0.52 7 -0.88 55 -0.06 4A ES
COMLAB 895 -0.28 1992 -0.61 81 0.40 285 -0.77 8 -0.60 56 0.14 4A AAS,MS
COMLAB 889 -0.37 1950 -0.95 <100 bld 283 -0.88 <100 bld <100 bld AR ES
COMLAB 948 0.50 2133 0.51 84 0.60 303 0.34 10 0.22 58 0.41 4A ES
COMLAB 963 0.72 2270 1.61 57 -1.25 308 0.65 <20 bld 61 0.81 4A ES
COMLAB 935 0.31 2085 0.13 86 0.74 297 -0.03 11 0.63 61 0.81 4A ES
COMLAB 900 -0.21 2200 1.05 100 1.70 300 0.16 100 3.00 <100 bld 4A AAS
COMLAB 905 -0.14 2018 -0.41 82 0.47 293 -0.27 8 -0.60 57 0.28 4A ICP
COMLAB 887 -0.41 2054 -0.12 67 -0.60 283 -0.88 5 -1.89 53 -0.23 4A ES
COMLAB 893 -0.31 2085 0.13 87 0.81 305 0.47 11 0.63 60 0.68 4A ES
COMLAB 885 -0.44 2139 0.56 76 0.02 317 1.21 10 0.14 60 0.72 FUS XRF
COMLAB 920 0.09 2078 0.07 58 -1.18 285 -0.77 9 -0.19 57 0.28 AR ES
COMLAB 803 -1.64 1867 -1.61 nr nr 290 -0.46 14 1.85 54 -0.12 4A ICP
COMLAB 899 -0.23 2143 0.59 81 0.40 301 0.22 <10 bld 51 -0.52 4A ES
COMLAB 900 -0.21 2100 0.25 <500 bld <500 bld <500 bld <500 bld AR MS
COMLAB 924 0.14 2089 0.16 79 0.26 297 -0.03 <10 bld 59 0.54 FUS ES
COMLAB 984 1.03 2162 0.74 79 0.26 319 1.33 28 3.00 64 1.21 AR AAS
COMLAB 932 0.26 2091 0.18 60 -1.04 302 0.28 <10 bld 52 -0.39 ES
COMLAB 894 -0.30 1929 -1.12 89 0.95 289 -0.52 12 1.04 74 2.55 3A AAS
COMLAB 771 -2.12 1790 -2.23 78 0.19 288 -0.58 6 -1.42 54 -0.12 4A ES
COMLAB 1056 2.10 2375 2.45 71 -0.29 339 2.56 11 0.63 60 0.68 3A ICP
COMLAB 963 0.72 2224 1.24 96 1.43 321 1.45 9 -0.19 61 0.81 FUS,4A ICP
COMLAB 786 -1.89 1768 -2.41 60 -1.02 287 -0.64 9 -0.23 48 -0.90 AR ICP
COMLAB 863 -0.76 2106 0.29 80 0.36 292 -0.35 10 0.19 62 0.93 4A AAS
COMLAB 950 0.53 2130 0.49 120 3.00 360 3.00 <100 bld <100 bld 4A AAS
COMLAB 974 0.88 2094 0.20 115 2.73 349 3.00 50 3.00 109 3.00 4A AAS
COMLAB 917 0.04 2060 -0.07 74 -0.08 293 -0.27 8 -0.60 58 0.41 4A AAS
COMLAB 980 0.97 2380 2.49 85 0.67 310 0.77 <10 bld 60 0.68 4A AAS
COMLAB 925 0.16 >1000 ald 59 -1.11 293 -0.27 8 -0.60 50 -0.66 AR MS
COMLAB 837 -1.15 1973 -0.77 69 -0.43 266 -1.93 5 -1.85 41 -1.79 FUS ICP
COMLAB 890 -0.36 2060 -0.07 90 1.01 315 1.08 <25 bld 65 1.35 4A ES
COMLAB 946 0.47 2025 -0.35 81 0.43 279 -1.15 13 1.34 59 0.57 4A ICP
COMLAB 849 -0.96 1831 -1.90 83 0.53 264 -2.06 9 -0.19 52 -0.39 4A ES,AAS
COMLAB 899 -0.23 1997 -0.57 <100 bld 275 -1.38 <100 bld <100 bld FUS ICP
COMLAB 963 0.72 2076 0.06 76 0.05 296 -0.09 8 -0.60 52 -0.39 4A ES
COMLAB 919 0.07 2200 1.05 63 -0.84 315 1.08 12 1.04 62 0.95 3A ICP
COMLAB 947 0.48 2090 0.17 69 -0.43 302 0.28 15 2.26 56 0.14 3A AAS
COMLAB 949 0.51 2203 1.07 nr nr 282 -0.95 nr nr nr nr 4A AAS
COMLAB 950 0.53 2090 0.17 78 0.21 304 0.40 1 -3.00 55 -0.04 3A ES
COMLAB 838 -1.13 1822 -1.97 81 0.40 282 -0.95 23 3.00 40 -1.99 AR AAS
COMLAB 932 0.26 2030 -0.31 <100 bld 317 1.21 <100 bld <100 bld 1A AAS
COMLAB 833 -1.20 1964 -0.84 63 -0.84 298 0.03 11 0.63 57 0.28 AR ES
MINELAB 1067 2.26 1921 -1.18 <70 bld <70 -3.00 <70 bld <70 bld FUS ES
MINELAB 929 0.22 1998 -0.57 57 -1.25 274 -1.45 9 -0.19 46 -1.19 AD ES
MINELAB 807 -1.59 1804 -2.12 59 -1.11 273 -1.51 6 -1.42 46 -1.19 AAS
MINELAB 841 -1.08 1860 -1.67 85 0.67 314 1.02 63 3.00 104 3.00 AR AAS
MINELAB 957 0.63 2170 0.81 57 -1.25 299 0.10 5 -1.82 47 -1.06 3A ES
MINELAB 962 0.71 2073 0.03 66 -0.63 293 -0.27 <10 bld 50 -0.66 AR ES
MINELAB 728 -2.76 2090 0.17 11 -3.00 256 -2.55 <0.001 -3.00 34 -2.79 3A ES
MINELAB 687 -3.00 1660 -3.00 5 -3.00 24 -3.00 <0.01 -3.00 3 -3.00 AR ICP
MINELAB 815 -1.47 1870 -1.59 <100 bld 273 -1.51 <100 bld <100 bld AR ES
MINELAB 1103 2.78 2458 3.00 70 -0.38 353 3.00 11 0.47 57 0.29 AR ES
MINELAB 932 0.26 2051 -0.14 61 -1.00 297 -0.06 10 0.19 53 -0.30 AR MS
MINELAB 940 0.39 2106 0.30 56 -1.29 285 -0.79 10 0.32 47 -1.08 AR ES
MINELAB 759 -2.30 1737 -2.65 165 3.00 325 1.72 112 3.00 150 3.00 4A ES
MINELAB 802 -1.66 1838 -1.85 55 -1.39 267 -1.88 8 -0.60 46 -1.19 AR ICP
MINELAB 870 -0.65 2219 1.20 61 -0.97 295 -0.16 9 -0.23 49 -0.74 AR ES
MINELAB 862 -0.77 1977 -0.73 59 -1.11 223 -3.00 9 -0.19 49 -0.79 3A ES
MINELAB 1008 1.39 2352 2.26 66 -0.63 330 2.00 9 -0.17 57 0.26 AR ES
MINELAB 840 -1.10 1961 -0.86 63 -0.86 245 -3.00 <20 bld 37 -2.39 3A,MICR ES
MINELAB 1080 2.45 2315 1.97 105 2.04 295 -0.15 417 3.00 155 3.00 FUS XRF
MINELAB 934 0.30 2100 0.25 62 -0.94 282 -0.98 7 -1.05 53 -0.28 AAS
MINELAB 857 -0.85 2174 0.84 54 -1.46 271 -1.63 14 1.85 43 -1.59 AR AAS
MINELAB 941 0.40 1876 -1.54 82 0.49 302 0.29 9 -0.31 55 -0.02 4A MS
MINELAB 900 -0.21 2000 -0.55 83 0.55 301 0.19 8 -0.46 70 2.05 AR ICP
Highlighted values are outliers which are assigned a z-score of -3.00 or 3.00 in the standardised values. Insufficient reliable results were received for the highlighted materials. These results do not contribute to the error charts.
Method Reading
Alex Stewart International Argentina SA - Perito Moreno Report Page 45
Ore Grade Nickel Assay - Mean of Absolute Standardized Values - April 2019 Ore Grade Nickel Assay - Mean of Standardized Values - April 2019
Standard Deviations Standard Deviations
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Ore Grade Silver Round Robin - Summary Statistics, Assays, Standardised Values and Graphs - April 2019
Standard Reference GBM319-11 GBM319-12 GBM319-13 GBM319-14 GBM319-15 GBM319-16
MEAN (ppm) 108.0 112.9 7.4 36.5 51.3 8.8
STDEV (ppm) 5.1 5.0 0.7 1.8 3.0 0.7
95% CI (ppm) 0.9 0.9 0.1 0.3 0.5 0.1
95% CI (%) 0.88% 0.83% 1.86% 0.88% 1.04% 1.54% Ore Grade Silver Assay - Mean of Absolute Standardized Values - April 2019MIN (ppm) 96.8 100.0 6.0 32.0 43.5 7.0
MEDIAN (ppm) 108.0 113.9 7.2 36.6 51.1 9.0
MAX (ppm) 120.4 125.4 9.3 41.0 59.0 10.6
IQR (ppm) 6.0 6.1 0.9 2.1 3.2 0.8
COUNT 114 112 107 115 119 101
Standard Reference GBM319-11 GBM319-12 GBM319-13 GBM319-14 GBM319-15 GBM319-16
Lab Reference assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score
MAXXAM ONTARIO 100.0 -1.55 110.0 -0.57 8.0 0.86 36.0 -0.27 50.0 -0.44 9.0 0.22 NAA
ASA MENDOZA 106.3 -0.33 112.5 -0.07 6.1 -1.78 36.7 0.13 48.9 -0.82 8.1 -1.08 3A ES
COMLAB 111.0 0.59 116.0 0.62 7.0 -0.53 37.0 0.30 53.0 0.57 9.0 0.22 4A ES
COMLAB 112.3 0.84 116.3 0.68 9.1 2.43 36.2 -0.16 50.2 -0.38 9.9 1.50 4A ES
COMLAB 115.0 1.37 120.0 1.42 7.0 -0.53 38.0 0.87 53.0 0.57 9.0 0.22 4A ES
COMLAB 111.0 0.59 119.0 1.22 <20.0 bld 35.0 -0.84 52.0 0.23 <20.0 bld 4A AAS
COMLAB 112.0 0.78 118.0 1.02 8.9 2.08 39.3 1.61 52.1 0.26 14.4 3.00 4A ES
COMLAB 98.4 -1.86 103.9 -1.78 7.7 0.44 38.1 0.93 48.5 -0.95 9.0 0.22 4A ES
COMLAB 109.0 0.20 116.0 0.62 7.0 -0.53 37.0 0.30 53.0 0.57 9.0 0.22 4A ES
COMLAB 114.0 1.17 120.0 1.42 10.0 3.00 39.0 1.44 53.0 0.57 11.0 3.00 3A AAS
COMLAB 111.0 0.59 116.0 0.62 8.0 0.86 36.0 -0.27 51.0 -0.11 10.0 1.66 4A ES
COMLAB 107.0 -0.19 113.0 0.03 8.0 0.86 37.0 0.30 50.0 -0.44 9.0 0.22 FUS ES
COMLAB 113.0 0.98 118.0 1.02 8.0 0.86 39.0 1.44 57.0 1.92 10.0 1.66 4A ES
COMLAB 110.0 0.39 115.0 0.42 7.0 -0.53 35.0 -0.84 52.0 0.23 8.0 -1.22 4A ICP
COMLAB 110.0 0.39 115.0 0.42 8.0 0.86 36.0 -0.27 53.0 0.57 10.0 1.66 4A ES
COMLAB 111.0 0.59 117.0 0.82 7.0 -0.53 37.0 0.30 51.0 -0.11 12.0 3.00 4A ES
COMLAB 109.0 0.20 113.0 0.03 7.0 -0.53 36.0 -0.27 54.0 0.91 9.0 0.22 4A ES
COMLAB 106.0 -0.38 108.0 -0.96 7.0 -0.53 38.0 0.87 51.0 -0.11 8.0 -1.22 AR ES
COMLAB 112.0 0.78 114.0 0.23 7.0 -0.53 37.0 0.30 51.0 -0.11 8.0 -1.22 AR ES
COMLAB 109.0 0.20 115.0 0.42 7.0 -0.53 36.0 -0.27 51.0 -0.11 8.0 -1.22 AR ES
COMLAB 109.0 0.20 117.0 0.82 7.0 -0.53 36.0 -0.27 53.0 0.57 8.0 -1.22 4A ES
COMLAB 114.0 1.17 110.0 -0.57 9.0 2.25 37.0 0.30 53.0 0.57 11.0 3.00 4A AAS
COMLAB 111.0 0.59 114.0 0.23 7.0 -0.53 37.0 0.30 50.0 -0.44 9.0 0.22 AR AAS
COMLAB 111.0 0.59 115.0 0.42 5.0 -3.00 39.0 1.44 54.0 0.91 9.0 0.22 4A AAS
COMLAB 110.0 0.39 115.0 0.42 7.0 -0.53 37.0 0.30 55.0 1.24 9.0 0.22 4A ES
COMLAB 110.0 0.39 116.0 0.62 6.0 -1.92 35.0 -0.84 52.0 0.23 8.0 -1.22 4A ES
COMLAB 109.7 0.34 111.4 -0.29 8.1 1.00 35.7 -0.44 49.2 -0.71 9.5 0.94 FA GRAV
COMLAB 101.4 -1.28 109.4 -0.69 6.6 -1.09 34.5 -1.13 52.0 0.23 8.8 -0.07 5A ES
COMLAB 114.0 1.17 114.0 0.23 10.0 3.00 38.0 0.87 57.0 1.92 9.0 0.22 4A AAS
COMLAB 104.0 -0.77 115.0 0.42 7.6 0.30 37.2 0.41 54.2 0.97 8.6 -0.36 3A MS
COMLAB 104.7 -0.64 111.2 -0.33 7.2 -0.25 33.8 -1.53 44.8 -2.20 8.6 -0.36 4A AAS
COMLAB 108.0 0.01 115.0 0.42 nr nr 37.0 0.30 55.0 1.24 nr nr
COMLAB 104.3 -0.71 104.7 -1.62 7.0 -0.53 36.2 -0.16 50.5 -0.28 9.3 0.65 4A AAS
COMLAB 106.0 -0.38 122.0 1.81 8.0 0.86 38.0 0.87 54.0 0.91 9.0 0.22 AR AAS
COMLAB 106.2 -0.34 116.3 0.68 8.0 0.86 34.7 -1.01 48.0 -1.12 8.3 -0.79 3A AAS
COMLAB 110.0 0.39 120.0 1.42 7.5 0.16 36.5 0.01 53.5 0.74 9.0 0.22 4A MS
COMLAB 109.0 0.20 112.0 -0.17 8.0 0.86 34.0 -1.41 46.0 -1.79 8.0 -1.22 AR ES
COMLAB 105.0 -0.58 112.0 -0.17 7.0 -0.53 37.0 0.30 51.0 -0.11 9.0 0.22 4A AAS
COMLAB 100.0 -1.55 110.0 -0.57 7.5 0.16 35.0 -0.84 50.0 -0.44 8.0 -1.22 4A MS
COMLAB 110.5 0.49 113.8 0.19 7.5 0.16 35.7 -0.44 51.4 0.03 9.1 0.36 4A ES
COMLAB 109.0 0.20 114.0 0.23 5.0 -3.00 36.0 -0.27 52.0 0.23 6.0 -3.00 AR ES
COMLAB 105.6 -0.46 112.2 -0.13 7.0 -0.53 34.6 -1.07 50.7 -0.21 8.9 0.07 4A AAS
COMLAB 107.0 -0.19 112.0 -0.17 7.0 -0.53 36.0 -0.27 52.0 0.23 8.0 -1.22 4A ICP
COMLAB 92.0 -3.00 97.0 -3.00 6.0 -1.92 31.0 -3.00 46.0 -1.79 8.0 -1.22 4A AAS
COMLAB 112.9 0.96 119.6 1.34 9.2 2.53 35.7 -0.44 52.3 0.33 10.2 1.94 4A ES
COMLAB 97.0 -2.13 103.0 -1.95 7.0 -0.53 32.0 -2.55 46.0 -1.79 9.0 0.22 4A AAS
COMLAB 131.2 3.00 143.4 3.00 <10.0 bld 41.1 2.64 54.0 0.89 14.4 3.00 AR AAS
COMLAB 118.0 1.95 115.0 0.42 6.0 -1.92 34.0 -1.41 52.0 0.23 9.0 0.22 4A ES
COMLAB 115.0 1.37 115.0 0.42 7.0 -0.53 34.0 -1.41 54.0 0.91 9.0 0.22 4A ES
COMLAB 108.0 0.01 116.0 0.62 7.0 -0.53 37.0 0.30 53.0 0.57 9.0 0.22 4A ES
COMLAB 105.0 -0.58 114.0 0.23 7.0 -0.53 37.0 0.30 53.0 0.57 10.0 1.66 4A AAS
COMLAB 151.0 3.00 138.0 3.00 18.0 3.00 67.0 3.00 76.0 3.00 29.0 3.00 3A AAS
COMLAB 113.6 1.09 117.7 0.96 7.1 -0.39 36.9 0.24 52.9 0.53 8.9 0.07 4A ICP
COMLAB 108.0 0.01 110.9 -0.39 6.5 -1.24 35.2 -0.73 50.7 -0.21 8.6 -0.36 4A AAS
COMLAB 105.0 -0.58 114.0 0.23 6.0 -1.92 35.0 -0.84 51.0 -0.11 9.0 0.22 4A ES
COMLAB 56.5 -3.00 125.4 2.49 7.7 0.44 33.9 -1.47 58.8 2.52 12.8 3.00 AR ICP
COMLAB 108.0 0.01 119.0 1.22 7.0 -0.53 35.0 -0.84 48.0 -1.12 9.0 0.22 AR ES
COMLAB 108.0 0.01 111.0 -0.37 nr nr 37.5 0.58 53.1 0.60 9.1 0.36 4A ICP
COMLAB 110.0 0.39 112.0 -0.17 7.0 -0.53 36.0 -0.27 51.0 -0.11 8.0 -1.22 4A AAS
COMLAB 111.0 0.59 121.0 1.61 7.0 -0.53 37.0 0.30 55.0 1.24 12.0 3.00 4A ES
COMLAB 136.0 3.00 142.0 3.00 9.2 2.53 40.1 2.07 64.2 3.00 11.3 3.00 AR MS
COMLAB 113.0 0.98 115.0 0.42 7.0 -0.53 39.0 1.44 50.0 -0.44 8.0 -1.22 AR ES
COMLAB 105.3 -0.52 108.9 -0.78 7.3 -0.11 35.8 -0.39 50.1 -0.41 8.4 -0.65 AAS
COMLAB 111.6 0.71 113.5 0.13 7.5 0.16 35.9 -0.33 48.1 -1.09 8.5 -0.50 3A AAS
COMLAB 100.4 -1.47 107.4 -1.08 8.0 0.86 35.5 -0.56 51.4 0.03 9.1 0.42 4A ES
COMLAB 97.9 -1.96 105.7 -1.42 7.6 0.30 38.3 1.04 51.3 -0.01 8.2 -0.94 1A ICP
COMLAB 104.4 -0.69 103.7 -1.82 7.2 -0.25 34.7 -1.01 48.1 -1.09 8.6 -0.36 AR AAS
COMLAB 100.7 -1.41 106.4 -1.28 7.6 0.30 36.7 0.13 50.3 -0.34 8.9 0.07 AR AAS
COMLAB 104.7 -0.63 100.3 -2.48 7.2 -0.25 38.8 1.33 47.7 -1.21 9.2 0.50 4A AAS
COMLAB 107.4 -0.11 114.3 0.29 6.8 -0.81 36.0 -0.27 49.9 -0.48 7.9 -1.37 4A AAS
COMLAB 97.0 -2.13 96.0 -3.00 8.0 0.86 37.0 0.30 52.0 0.23 10.0 1.66 4A AAS
COMLAB 113.3 1.04 115.3 0.48 7.1 -0.39 35.8 -0.39 55.0 1.24 9.3 0.65 4A AAS
COMLAB 108.4 0.09 107.7 -1.02 7.7 0.50 35.7 -0.44 49.9 -0.46 9.5 0.94 3A AAS
COMLAB 120.0 2.34 120.0 1.42 7.0 -0.53 36.0 -0.27 56.0 1.58 12.0 3.00 4A AAS
COMLAB 111.0 0.59 115.0 0.42 7.3 -0.11 37.0 0.30 48.9 -0.82 8.9 0.07 AR MS
COMLAB 110.3 0.45 113.3 0.10 6.1 -1.84 36.5 0.04 52.6 0.44 8.1 -1.08 3A AAS
COMLAB 104.0 -0.77 108.0 -0.96 7.0 -0.53 37.0 0.30 59.0 2.59 9.0 0.22 4A ES
COMLAB 110.2 0.43 111.2 -0.33 8.2 1.08 40.6 2.35 57.5 2.09 9.7 1.18 4A ICP,AAS
COMLAB 100.0 -1.55 100.0 -2.55 6.0 -1.92 37.0 0.30 50.0 -0.44 8.0 -1.22 4A AAS
COMLAB 104.0 -0.77 111.0 -0.37 8.0 0.86 34.0 -1.41 48.0 -1.12 8.0 -1.22 3A AAS
COMLAB 108.0 0.01 109.0 -0.76 7.0 -0.53 33.0 -1.98 52.0 0.23 14.0 3.00 4A ES
COMLAB 124.0 3.00 132.0 3.00 8.0 0.86 43.0 3.00 57.0 1.92 10.0 1.66 3A ICP
COMLAB 105.6 -0.46 108.6 -0.84 7.2 -0.25 35.5 -0.56 49.8 -0.51 7.8 -1.51 3A AAS
COMLAB 107.9 -0.01 111.0 -0.37 6.2 -1.64 39.2 1.55 50.3 -0.34 7.0 -2.66 4A AAS
COMLAB 117.0 1.76 116.0 0.62 11.3 3.00 41.0 2.58 57.4 2.05 12.2 3.00 3A ES
COMLAB 106.0 -0.38 111.0 -0.37 7.9 0.72 38.7 1.27 51.4 0.03 9.2 0.50 AR AAS
COMLAB 104.2 -0.73 109.7 -0.63 7.8 0.58 39.0 1.44 53.1 0.60 8.7 -0.22 AR AAS
COMLAB 105.4 -0.50 107.2 -1.12 7.5 0.16 34.6 -1.07 50.4 -0.31 8.8 -0.07 AR ES
MINELAB 110.0 0.39 116.0 0.62 7.0 -0.53 36.0 -0.27 52.0 0.23 10.0 1.66 3A AAS
MINELAB 104.0 -0.77 104.0 -1.76 7.0 -0.53 35.0 -0.84 48.0 -1.12 9.0 0.22 3A AAS
MINELAB 111.5 0.69 118.2 1.06 7.3 -0.11 36.5 0.01 48.9 -0.82 8.6 -0.36 AR AAS
MINELAB 131.0 3.00 148.0 3.00 49.0 3.00 74.0 3.00 91.0 3.00 39.0 3.00 4A AAS
MINELAB 113.0 0.98 112.0 -0.17 8.0 0.86 37.0 0.30 55.0 1.24 10.0 1.66 AD AAS
MINELAB 104.1 -0.75 106.7 -1.22 7.9 0.72 35.7 -0.44 48.1 -1.09 8.0 -1.22 AAS
MINELAB 129.0 3.00 119.0 1.22 8.0 0.86 37.0 0.30 51.0 -0.11 9.0 0.22 4A AAS
MINELAB 111.0 0.59 114.0 0.23 <10.0 bld 37.0 0.30 51.0 -0.11 10.0 1.66 3A AAS
MINELAB 100.8 -1.39 54.1 -3.00 3.7 -3.00 32.2 -2.44 43.5 -2.64 3.9 -3.00 AR AAS
MINELAB 119.3 2.19 117.9 1.00 7.3 -0.14 39.1 1.49 52.0 0.23 8.7 -0.27 AR ES
MINELAB 110.0 0.39 116.0 0.62 8.0 0.86 38.0 0.87 52.0 0.23 9.0 0.22 AR AAS
MINELAB 157.0 3.00 154.0 3.00 12.0 3.00 45.0 3.00 57.0 1.92 13.0 3.00
MINELAB 102.2 -1.11 111.6 -0.24 6.9 -0.66 34.7 -1.00 46.5 -1.61 12.7 3.00 AR ICP
MINELAB 101.6 -1.24 108.2 -0.92 7.6 0.25 35.8 -0.39 48.8 -0.85 8.5 -0.52 AR ES
MINELAB 110.0 0.40 119.3 1.28 8.3 1.32 38.3 1.03 53.7 0.80 9.7 1.17 AR AAS
MINELAB 109.4 0.27 117.5 0.91 7.3 -0.06 37.3 0.49 51.1 -0.08 9.0 0.25 AR MS
MINELAB 112.0 0.78 116.0 0.63 7.7 0.39 37.5 0.57 52.5 0.38 8.8 -0.14 AR ES
MINELAB 119.5 2.23 129.6 3.00 9.3 2.72 42.5 3.00 56.5 1.74 11.7 3.00 4A ES
MINELAB 106.0 -0.38 107.0 -1.16 7.0 -0.53 35.0 -0.84 49.0 -0.78 8.0 -1.22 AR ICP
MINELAB 119.8 2.30 121.2 1.66 7.8 0.59 39.0 1.43 55.6 1.43 11.6 3.00 AR ES
MINELAB 98.0 -1.94 97.0 -3.00 6.0 -1.92 21.0 -3.00 47.0 -1.46 13.0 3.00 3A ES
MINELAB 120.4 2.41 121.1 1.63 1.5 -3.00 34.3 -1.22 53.2 0.63 10.6 2.45 AR ES
MINELAB 108.0 0.01 115.0 0.42 <3.0 -3.00 20.8 -3.00 44.7 -2.23 <3.0 -3.00 3A,MICR MS
MINELAB 106.0 -0.38 111.0 -0.37 7.4 -0.04 36.6 0.07 50.4 -0.31 8.8 -0.14 AR AAS
MINELAB 110.0 0.39 106.0 -1.36 7.0 -0.53 32.0 -2.55 40.0 -3.00 8.0 -1.22 3A AAS
MINELAB 104.0 -0.77 110.0 -0.57 7.0 -0.53 38.0 0.87 50.0 -0.44 8.0 -1.22 AR AAS
MINELAB 132.0 3.00 135.0 3.00 11.2 3.00 38.2 0.98 48.2 -1.05 12.0 3.00 AR AAS
MINELAB 114.3 1.23 121.4 1.69 7.4 -0.02 35.4 -0.61 47.3 -1.36 8.7 -0.16 AAS
MINELAB 105.3 -0.52 105.8 -1.40 7.1 -0.39 34.0 -1.41 48.4 -0.98 8.3 -0.79 3A AAS
MINELAB 107.1 -0.17 114.5 0.33 7.4 0.02 37.2 0.41 47.8 -1.19 8.6 -0.36 3A AAS
MINELAB 100.0 -1.55 111.0 -0.37 7.0 -0.53 37.0 0.30 52.0 0.23 10.0 1.66 3A AAS
MINELAB 96.8 -2.18 105.0 -1.56 7.0 -0.54 34.1 -1.33 49.6 -0.60 9.3 0.58 1A,AR AAS
MINELAB 106.0 -0.38 104.0 -1.76 9.0 2.25 40.0 2.01 52.0 0.23 9.0 0.22 AR AAS
MINELAB 105.0 -0.58 110.0 -0.57 8.4 1.41 37.7 0.70 52.0 0.23 9.8 1.37 4A AAS
MINELAB 99.1 -1.72 105.7 -1.43 7.1 -0.38 35.2 -0.76 47.1 -1.43 7.4 -2.07 AR ICP
MINELAB 105.0 -0.57 105.5 -1.45 7.4 -0.02 36.9 0.26 49.9 -0.47 8.7 -0.17 AR AAS
MINELAB 116.2 1.60 118.9 1.20 7.7 0.44 38.1 0.93 54.0 0.91 9.8 1.37 4A AAS
Highlighted values are outliers which are assigned a z-score of -3.00 or 3.00 in the standardised values.
Method Reading
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Ore Grade Silver Assay - Mean of Absolute Standardized Values - April 2019 Ore Grade Silver Assay - Mean of Standardized Values - April 2019
Standard Deviations Standard Deviations
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Ore Grade Sulphur Round Robin - Summary Statistics, Assays, Standardised Values and Graphs - April 2019
Standard Reference GBM319-11 GBM319-12 GBM319-13 GBM319-14 GBM319-15 GBM319-16
MEAN (%) 22.96 13.42 2.18 4.93 0.07 0.04
STDEV (%) 0.76 0.45 0.09 0.16 0.01 0.01
95% CI (%) 0.16 0.10 0.02 0.03 0.00 0.00
95% CI (rel %) 0.71% 0.71% 0.85% 0.67% 4.42% 8.77% Ore Grade Sulphur Assay - Mean of Absolute Standardized Values - April 2019MIN (%) 21.10 12.19 1.94 4.53 0.04 0.00
MEDIAN (%) 23.00 13.40 2.17 4.92 0.07 0.04
MAX (%) 24.65 14.38 2.42 5.31 0.11 0.07
IQR (%) 0.87 0.55 0.10 0.22 0.02 0.02
COUNT 84 87 89 87 76 71
Standard Reference GBM319-11 GBM319-12 GBM319-13 GBM319-14 GBM319-15 GBM319-16
Lab Reference assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score
ASA MENDOZA 23.08 0.16 13.83 0.92 2.17 -0.15 4.91 -0.13 0.07 -0.21 0.07 2.31 3A ES
COMLAB 23.00 0.05 12.80 -1.37 2.09 -1.05 4.78 -0.96 0.07 -0.21 0.04 0.17 CSA IR
COMLAB 23.20 0.31 13.60 0.41 2.24 0.64 5.02 0.58 0.08 0.49 0.04 0.17 CSA IR
COMLAB 23.10 0.18 14.01 1.32 2.14 -0.48 5.07 0.90 <0.01 -3.00 <0.01 bld 4A ES
COMLAB 22.50 -0.61 13.00 -0.92 2.20 0.19 4.82 -0.70 0.08 0.49 0.04 0.17 CSA IR
COMLAB 22.70 -0.34 13.35 -0.14 2.15 -0.37 4.67 -1.67 0.06 -0.91 <0.01 bld FUS XRF
COMLAB 21.80 -1.52 13.20 -0.48 2.18 -0.04 4.87 -0.38 0.09 1.19 0.03 -0.54 4A ES
COMLAB 22.60 -0.47 13.35 -0.14 2.16 -0.26 4.77 -1.03 0.06 -0.91 <0.05 bld FUS ES
COMLAB 22.80 -0.21 13.00 -0.92 2.19 0.08 4.95 0.13 0.14 3.00 0.03 -0.54 4A ES
COMLAB 22.50 -0.61 14.20 1.75 2.40 2.43 5.31 2.45 0.10 1.90 0.02 -1.25 CSA IR
COMLAB 22.30 -0.87 13.40 -0.03 2.29 1.20 5.13 1.29 0.08 0.49 0.04 0.17 CSA IR
COMLAB 22.80 -0.21 13.70 0.63 2.12 -0.71 4.72 -1.35 0.08 0.49 0.04 0.17 CSA IR
COMLAB 21.10 -2.44 12.70 -1.59 2.14 -0.48 4.97 0.26 0.08 0.49 0.04 0.17 4A ES
COMLAB 22.09 -1.14 12.19 -2.73 2.14 -0.48 4.80 -0.83 0.07 -0.21 <0.05 bld AR ES
COMLAB >10.00 ald >10.00 ald 2.22 0.41 4.91 -0.13 0.08 0.49 0.05 0.89 AR ES
COMLAB >10.00 ald >10.00 ald 2.20 0.19 4.79 -0.90 0.09 1.19 0.02 -1.25 AR ES
COMLAB 22.90 -0.08 13.60 0.41 2.13 -0.60 4.81 -0.77 0.07 -0.21 0.05 0.89 CSA IR
COMLAB 24.10 1.49 14.15 1.63 2.36 1.98 5.16 1.48 0.06 -0.91 0.06 1.60 CSA IR
COMLAB 21.30 -2.18 12.85 -1.26 2.16 -0.26 4.85 -0.51 0.08 0.49 0.03 -0.54 4A ES
COMLAB 22.90 -0.08 13.45 0.08 2.21 0.30 4.95 0.13 nr nr nr nr CSA IR
COMLAB 23.11 0.20 13.38 -0.07 2.37 2.09 5.09 1.02 0.09 1.19 0.06 1.53 CSA IR
COMLAB 22.52 -0.58 13.27 -0.32 2.14 -0.48 4.72 -1.35 0.05 -1.61 <0.05 bld AR ES
COMLAB 23.00 0.05 13.40 -0.03 2.24 0.64 4.97 0.26 0.07 -0.21 0.03 -0.54 CSA IR
COMLAB 23.20 0.31 13.40 -0.03 2.12 -0.71 4.84 -0.58 0.14 3.00 0.11 3.00 CSA IR
COMLAB 22.60 -0.47 13.00 -0.92 2.11 -0.82 4.90 -0.19 0.10 1.90 0.06 1.60 CSA IR
COMLAB 22.60 -0.47 13.50 0.19 2.23 0.52 4.96 0.20 0.09 1.19 0.06 1.60 4A ES
COMLAB 22.30 -0.87 13.68 0.59 2.18 -0.04 4.92 -0.06 0.07 -0.21 <0.05 bld AR ES
COMLAB 23.26 0.39 13.83 0.92 2.26 0.86 5.07 0.90 0.16 3.00 0.19 3.00 CSA IR
COMLAB 21.68 -1.68 13.35 -0.14 2.17 -0.15 4.80 -0.83 0.08 0.49 0.05 0.89 4A ES
COMLAB 23.51 0.72 14.03 1.37 2.29 1.20 5.06 0.84 0.08 0.41 0.04 0.33 4A ES
COMLAB 22.76 -0.26 13.54 0.28 2.22 0.41 4.99 0.39 0.09 1.19 0.06 1.60 CSA IR
COMLAB 23.90 1.23 13.75 0.75 2.11 -0.82 4.83 -0.64 0.08 0.49 0.04 0.17 CSA IR
COMLAB 22.60 -0.47 13.30 -0.26 2.17 -0.15 4.53 -2.57 0.08 0.49 0.04 0.17 CSA IR
COMLAB 21.83 -1.48 12.43 -2.19 2.13 -0.60 4.93 0.00 0.04 -2.32 0.02 -1.25 CSA IR
COMLAB 22.68 -0.37 13.34 -0.17 2.15 -0.37 4.86 -0.45 0.06 -0.91 0.03 -0.54 FUS,CSA GRAV,IR
COMLAB 24.16 1.57 15.26 3.00 2.23 0.52 5.15 1.42 <0.10 bld <0.10 bld CSA IR
COMLAB 23.94 1.28 13.59 0.39 2.26 0.86 5.15 1.42 0.07 -0.21 0.04 0.17 4A ES
COMLAB 23.89 1.22 14.10 1.52 2.29 1.20 5.31 2.45 0.06 -0.91 0.05 0.89 4A ES
COMLAB 22.22 -0.97 12.97 -0.99 2.21 0.30 4.91 -0.13 0.08 0.49 0.04 0.17 4A ES
COMLAB 22.40 -0.74 13.50 0.19 2.29 1.20 4.99 0.39 0.07 -0.21 0.02 -1.25 CSA IR
COMLAB 23.41 0.59 13.98 1.26 2.05 -1.49 4.64 -1.86 0.08 0.49 0.05 0.89 CSA IR
COMLAB 22.48 -0.63 13.26 -0.34 2.08 -1.16 4.79 -0.90 <0.05 bld <0.05 bld AR ES
COMLAB 21.86 -1.44 13.03 -0.86 2.19 0.08 4.85 -0.51 0.08 0.49 0.04 0.17 4A ES
COMLAB 24.65 2.21 14.84 3.00 2.31 1.46 5.10 1.08 0.06 -1.02 0.03 -0.59 FUS XRF
COMLAB 23.15 0.25 13.27 -0.32 2.15 -0.37 4.82 -0.70 0.12 3.00 0.08 3.00 CSA IR
COMLAB 23.63 0.88 13.90 1.08 nr nr 5.15 1.40 0.07 -0.19 0.03 -0.53 4A ICP
COMLAB 21.30 -2.18 13.90 1.08 2.25 0.75 4.94 0.07 0.08 0.49 0.04 0.17 CSA IR
COMLAB 20.48 -3.00 12.73 -1.52 2.09 -1.05 4.68 -1.61 0.08 0.49 0.04 0.17 4A ES
COMLAB 21.30 -2.18 15.00 3.00 2.42 2.66 5.10 1.10 0.06 -0.91 0.03 -0.54 CSA IR
COMLAB 23.16 0.26 13.34 -0.17 2.17 -0.15 4.92 -0.06 0.06 -0.91 0.03 -0.54 CSA IR
COMLAB 22.86 -0.13 12.98 -0.97 2.12 -0.71 4.78 -0.96 0.07 -0.28 0.03 -0.25 CSA IR
COMLAB 23.04 0.10 14.13 1.59 2.18 -0.04 4.99 0.39 0.06 -0.91 0.02 -1.25 CSA IR
COMLAB 27.87 3.00 15.80 3.00 2.11 -0.82 5.10 1.10 0.06 -0.91 0.04 0.17 1A ICP
COMLAB 23.10 0.18 13.35 -0.14 2.19 0.08 4.81 -0.77 0.06 -0.63 0.01 -1.68 CSA IR
COMLAB 23.40 0.57 12.90 -1.15 2.11 -0.82 5.00 0.45 0.09 1.19 0.05 0.89 CSA IR
COMLAB 22.00 -1.26 13.20 -0.48 2.19 0.08 4.79 -0.90 0.08 0.49 0.04 0.17 CSA IR
COMLAB 23.32 0.47 13.52 0.23 2.16 -0.26 4.98 0.33 0.08 0.49 0.04 0.17 CSA IR
COMLAB nr nr 13.30 -0.26 2.37 2.09 nr nr 0.07 -0.21 0.03 -0.54 CSA IR
COMLAB 21.90 -1.39 13.30 -0.26 2.29 1.20 4.97 0.26 0.11 2.60 0.04 0.10 4A ES
COMLAB 18.88 -3.00 12.03 -3.00 2.27 0.97 4.60 -2.12 0.09 1.19 0.03 -0.54 4A ICP
COMLAB 23.13 0.22 13.10 -0.70 2.14 -0.48 4.91 -0.13 0.07 0.00 0.04 -0.18 CSA IR
COMLAB 22.40 -0.74 12.90 -1.15 2.20 0.19 4.80 -0.83 0.07 -0.21 0.03 -0.54 CSA IR
COMLAB 22.30 -0.87 12.77 -1.43 2.14 -0.48 26.31 3.00 0.03 -3.00 0.06 1.60 AR,IH GRAV
COMLAB 17.54 -3.00 12.30 -2.48 2.29 1.20 5.43 3.00 0.09 1.19 <0.01 bld CSA IR
COMLAB 25.80 3.00 14.90 3.00 2.29 1.20 4.76 -1.09 0.07 -0.56 0.03 -0.54 CSA IR
COMLAB 23.26 0.39 13.72 0.68 2.09 -1.05 5.03 0.65 0.06 -0.91 0.03 -0.54 CSA IR
COMLAB 22.91 -0.07 13.76 0.77 2.12 -0.71 5.00 0.45 0.06 -0.91 0.04 0.17 CSA IR
COMLAB 23.43 0.61 13.63 0.48 2.20 0.17 5.07 0.92 0.06 -0.63 0.03 -0.30 AR ES
MINELAB 20.29 -3.00 12.86 -1.23 2.11 -0.82 5.10 1.10 0.07 -0.21 0.04 0.17 CSA IR
MINELAB 24.45 1.95 13.38 -0.08 2.15 -0.37 4.83 -0.64 0.14 3.00 0.07 2.31 CSA IR
MINELAB 23.00 0.05 13.12 -0.65 2.05 -1.48 4.92 -0.07 0.07 -0.50 0.03 -0.88 CSA IR
MINELAB 22.60 -0.47 13.00 -0.92 2.20 0.19 4.80 -0.83 <0.50 bld <0.50 bld FUS ES
MINELAB 23.20 0.31 13.67 0.57 2.17 -0.15 4.99 0.39 0.08 0.49 0.05 0.89 CSA IR
MINELAB 23.10 0.18 13.42 0.01 2.21 0.30 5.04 0.71 0.14 3.00 0.09 3.00 CSA IR
MINELAB 24.60 2.15 14.20 1.75 2.50 3.00 5.30 2.39 0.10 1.90 0.10 3.00 CSA IR
MINELAB 23.72 0.99 13.82 0.90 2.19 0.08 4.97 0.26 0.10 1.90 0.05 0.89 3A ES
MINELAB 23.39 0.56 14.17 1.68 1.94 -2.73 5.48 3.00 0.06 -0.91 0.04 0.17 AR ES
MINELAB 22.97 0.01 13.64 0.50 2.09 -1.05 4.91 -0.13 <0.10 bld <0.10 bld FUS XRF
MINELAB 22.06 -1.18 12.55 -1.94 2.21 0.33 4.79 -0.90 0.04 -2.53 0.00 -2.60 CSA IR
MINELAB 14.39 -3.00 9.64 -3.00 1.74 -3.00 3.90 -3.00 0.02 -3.00 0.02 -1.39 AR ICP
MINELAB 22.94 -0.03 13.43 0.03 2.11 -0.82 4.86 -0.45 <0.10 bld <0.10 bld CSA IR
MINELAB 25.30 3.00 14.93 3.00 2.48 3.00 5.62 3.00 0.06 -1.00 0.03 -0.18 AR ES
MINELAB 23.42 0.60 13.83 0.92 2.14 -0.48 5.20 1.74 0.12 3.00 0.14 3.00 CSA IR
MINELAB 23.20 0.31 13.55 0.30 2.16 -0.26 4.94 0.07 0.07 -0.21 0.02 -1.25 CSA IR
MINELAB 23.28 0.42 13.88 1.03 2.19 0.08 5.15 1.42 0.09 1.19 0.06 1.60 CSA IR
MINELAB 23.96 1.31 13.56 0.32 1.95 -2.62 4.81 -0.77 <0.09 bld <0.09 bld CSA IR
MINELAB 23.38 0.55 13.31 -0.23 1.85 -3.00 3.37 -3.00 0.07 -0.21 0.03 -0.54 3A ES
MINELAB 18.20 -3.00 12.80 -1.37 2.02 -1.83 5.07 0.90 0.06 -0.91 0.03 -0.54 CSA IR
MINELAB 23.85 1.17 13.65 0.52 2.31 1.42 5.40 3.00 0.08 0.49 0.05 0.89 CSA IR
MINELAB 23.06 0.13 13.53 0.26 1.90 -3.00 4.91 -0.13 <0.10 bld <0.10 bld CSA IR
MINELAB 24.60 2.15 14.38 2.15 2.30 1.31 5.20 1.74 0.05 -1.61 0.01 -1.96 FUS XRF
MINELAB 23.86 1.18 13.61 0.43 2.13 -0.60 4.87 -0.38 0.05 -1.61 bld bld CSA IR
MINELAB 22.93 -0.04 13.31 -0.23 2.06 -1.38 4.89 -0.25 0.05 -1.33 0.01 -1.89 CSA IR
MINELAB 24.12 1.52 13.75 0.75 2.22 0.41 4.90 -0.19 <0.05 bld <0.05 bld AR AAS
MINELAB 23.20 0.31 13.25 -0.37 2.11 -0.82 4.80 -0.83 0.07 -0.21 <0.05 bld CSA IR
MINELAB 24.13 1.53 13.82 0.90 2.28 1.09 4.95 0.13 0.14 3.00 0.18 3.00 CSA IR
MINELAB 23.00 0.05 13.61 0.43 <5.00 bld <5.00 bld <5.00 bld <5.00 bld FUS GRAV
Highlighted values are outliers which are assigned a z-score of -3.00 or 3.00 in the standardised values.
Method Reading
Alex Stewart International Argentina SA - Perito Moreno Report Page 49
Ore Grade Sulphur Assay - Mean of Absolute Standardized Values - April 2019 Ore Grade Sulphur Assay - Mean of Standardized Values - April 2019
Standard Deviations Standard Deviations
ASA MENDOZA
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Alex Stewart International Argentina SA - Perito Moreno ReportPage 50
Sulphur Round Robin - Summary Statistics, Assays, Standardised Values and Graphs - April 2019
Standard Reference GS319-1 GS319-2 GS319-3 GS319-4 GS319-5 GS319-6 GS319-7 GS319-8 GS319-9 GS319-10
MEAN (%) 0.64 0.32 22.88 13.35 2.14 4.88 0.08 0.05 0.04 0.45
STDEV (%) 0.03 0.02 0.82 0.50 0.10 0.16 0.02 0.01 0.01 0.02
95% CI (%) 0.01 0.00 0.16 0.10 0.02 0.03 0.00 0.00 0.00 0.00
95% CI (rel %) 0.93% 1.40% 0.71% 0.74% 0.96% 0.64% 6.32% 5.73% 8.31% 1.04% Sulphur Assay - Mean of Absolute Standardized Values - April 2019MIN (%) 0.56 0.26 20.60 12.10 1.87 4.46 0.02 0.02 0.01 0.41
MEDIAN (%) 0.64 0.32 22.95 13.32 2.14 4.88 0.08 0.05 0.04 0.46
MAX (%) 0.70 0.37 24.79 14.64 2.43 5.25 0.14 0.09 0.07 0.52
IQR (%) 0.04 0.02 0.82 0.57 0.12 0.19 0.03 0.02 0.01 0.03
COUNT 95 95 98 102 101 99 91 82 72 95
Standard Reference GS319-1 GS319-2 GS319-3 GS319-4 GS319-5 GS319-6 GS319-7 GS319-8 GS319-9 GS319-10
Lab Reference assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score
COMLAB 0.63 -0.28 0.31 -0.49 22.60 -0.34 13.30 -0.10 2.11 -0.27 4.74 -0.88 0.08 0.12 0.06 0.39 0.04 0.36 0.47 0.70 CSA IR
COMLAB 0.59 -1.64 0.28 -1.84 21.30 -1.93 12.20 -2.28 1.88 -2.47 4.32 -3.00 0.07 -0.30 0.05 -0.31 0.03 -0.43 0.41 -1.86
COMLAB 0.64 0.16 0.33 0.32 23.10 0.27 13.30 -0.10 2.28 1.36 5.09 1.35 0.08 0.16 0.07 0.88 0.05 0.84 0.47 0.62 CSA IR
COMLAB 0.63 -0.28 0.30 -0.94 23.00 0.15 13.30 -0.10 2.08 -0.56 4.75 -0.82 0.06 -0.73 0.05 -0.31 0.03 -0.43 0.43 -1.01 CSA IR
COMLAB 0.63 -0.28 0.32 -0.04 23.10 0.27 12.85 -0.99 2.13 -0.08 4.93 0.33 0.06 -0.73 0.06 0.39 0.03 -0.43 0.44 -0.58 CSA IR
COMLAB 0.66 0.74 0.32 -0.04 21.50 -1.69 14.14 1.57 2.18 0.40 5.50 3.00 0.07 -0.30 0.04 -1.01 0.03 -0.43 0.48 1.13 CSA IR
COMLAB 0.64 0.06 0.31 -0.49 23.70 1.01 13.40 0.10 1.96 -1.71 5.02 0.91 0.08 0.12 0.06 0.39 0.05 1.15 0.51 2.41 CSA IR
COMLAB 0.64 0.06 0.33 0.41 23.70 1.01 13.65 0.60 2.19 0.49 5.04 1.03 0.07 -0.30 0.04 -1.01 0.03 -0.43 0.45 -0.15 CSA IR
COMLAB 0.68 1.42 0.33 0.41 22.80 -0.09 13.20 -0.30 2.18 0.40 5.09 1.35 0.07 -0.30 0.05 -0.31 0.03 -0.43 0.46 0.27 CSA IR
COMLAB 0.66 0.74 0.36 1.76 23.10 0.27 14.50 2.28 2.12 -0.18 4.94 0.39 0.08 0.12 0.04 -1.01 0.04 0.36 0.44 -0.58 CSA IR
COMLAB 0.65 0.40 0.31 -0.49 22.80 -0.09 13.30 -0.10 2.09 -0.46 4.76 -0.75 0.08 0.12 0.04 -1.01 0.03 -0.43 0.47 0.70 CSA IR
COMLAB 0.61 -0.96 0.30 -0.94 23.30 0.52 13.05 -0.59 2.10 -0.37 4.86 -0.12 0.07 -0.30 0.05 -0.31 0.04 0.36 0.45 -0.15 CSA IR
COMLAB 0.65 0.40 0.32 -0.04 23.00 0.15 13.20 -0.30 2.14 0.02 4.95 0.46 nr nr nr nr nr nr 0.46 0.27 CSA IR
COMLAB 0.70 2.10 0.32 -0.04 24.70 2.24 13.40 0.10 2.30 1.55 5.18 1.93 0.06 -0.73 0.04 -1.01 0.06 1.94 0.48 1.13 CSA IR
COMLAB 0.65 0.40 0.32 -0.04 23.10 0.27 13.35 0.00 2.14 0.02 4.89 0.08 nr nr nr nr nr nr 0.45 -0.15 CSA IR
COMLAB 0.64 -0.08 0.34 0.90 21.92 -1.17 13.53 0.36 2.21 0.64 4.77 -0.70 0.08 0.16 0.08 1.86 0.03 -0.19 0.46 0.27 CSA IR
COMLAB 0.61 -0.96 0.30 -0.94 22.10 -0.95 12.60 -1.49 2.13 -0.08 4.80 -0.50 0.08 0.12 0.06 0.39 0.10 3.00 0.41 -1.86 CSA IR
COMLAB 0.58 -1.98 0.30 -0.94 23.00 0.15 12.75 -1.19 2.12 -0.18 4.62 -1.65 0.09 0.54 0.06 0.39 0.05 1.15 0.45 -0.15 CSA IR
COMLAB 0.62 -0.62 0.31 -0.49 23.30 0.52 13.70 0.70 2.15 0.11 5.00 0.78 0.06 -0.73 0.05 -0.31 0.03 -0.43 0.43 -1.01 CSA IR
COMLAB 0.68 1.42 0.37 2.21 23.20 0.40 13.40 0.10 2.11 -0.27 4.83 -0.31 0.15 3.00 0.12 3.00 0.10 3.00 0.46 0.27 CSA IR
COMLAB 0.65 0.40 0.34 0.86 22.80 -0.09 13.40 0.10 2.19 0.49 4.87 -0.05 0.10 0.97 0.07 1.09 0.07 2.73 0.47 0.70 CSA IR
COMLAB 0.78 3.00 0.32 -0.04 23.70 1.01 14.00 1.29 2.13 -0.08 4.79 -0.56 0.06 -0.73 0.05 -0.31 0.03 -0.43 0.46 0.27 CSA IR
COMLAB 0.68 1.42 0.30 -0.94 22.69 -0.23 13.42 0.14 2.19 0.49 4.96 0.52 0.15 3.00 0.07 1.09 0.14 3.00 0.46 0.27 CSA IR
COMLAB 0.65 0.40 0.31 -0.49 23.90 1.26 13.80 0.89 2.13 -0.08 5.13 1.61 0.07 -0.30 0.05 -0.31 0.04 0.36 0.45 -0.15 CSA IR
COMLAB 0.64 0.06 0.34 0.86 22.95 0.09 13.55 0.40 2.21 0.69 5.02 0.91 0.10 0.97 0.07 1.09 0.08 3.00 0.47 0.70 CSA IR
COMLAB 0.64 0.06 0.31 -0.49 18.64 -3.00 13.06 -0.57 2.08 -0.56 4.89 0.08 0.08 0.12 0.06 0.39 0.04 0.36 0.48 1.13
COMLAB 0.64 0.06 0.33 0.41 23.80 1.13 13.60 0.50 2.13 -0.08 4.77 -0.69 0.08 0.12 0.06 0.39 0.04 0.36 0.45 -0.15 CSA IR
COMLAB 0.60 -1.30 0.30 -0.94 22.27 -0.74 13.27 -0.16 2.03 -1.04 4.67 -1.33 0.08 0.12 0.05 -0.31 0.01 -2.01 0.46 0.27 CSA IR
COMLAB 0.54 -3.00 0.27 -2.29 22.45 -0.52 12.91 -0.87 2.01 -1.23 4.80 -0.50 0.04 -1.57 0.04 -1.01 0.02 -1.22 0.41 -1.86 CSA IR
COMLAB 0.64 0.06 0.31 -0.49 22.35 -0.64 13.45 0.20 2.11 -0.27 4.86 -0.12 0.06 -0.73 0.04 -1.01 0.03 -0.43 0.45 -0.15 CSA,FUS IR,GRAV
COMLAB 0.66 0.74 0.27 -2.29 25.33 3.00 15.16 3.00 2.27 1.26 5.07 1.22 <0.10 bld <0.10 bld <0.10 bld 0.45 -0.15 CSA IR
COMLAB 0.68 1.42 0.35 1.31 22.60 -0.34 13.30 -0.10 2.16 0.21 4.95 0.46 0.06 -0.73 0.06 0.39 0.06 1.94 0.48 1.13
COMLAB 0.64 0.06 0.31 -0.49 22.55 -0.40 13.46 0.22 2.02 -1.13 4.46 -2.67 0.08 0.12 0.05 -0.31 0.02 -1.22 0.44 -0.58 CSA IR
COMLAB 0.67 1.08 0.33 0.41 23.12 0.30 12.94 -0.81 2.07 -0.65 4.75 -0.82 0.08 0.12 0.06 0.39 0.03 -0.43 0.47 0.70 CSA IR
COMLAB 0.63 -0.28 0.30 -0.94 22.50 -0.46 13.50 0.30 2.14 0.02 4.88 0.01 0.05 -1.15 0.05 -0.31 0.02 -1.22 0.41 -1.86 CSA IR
COMLAB 0.64 0.06 0.36 1.76 23.31 0.53 13.65 0.60 2.05 -0.85 4.64 -1.52 0.07 -0.30 0.06 0.39 0.06 1.94 0.46 0.27 CSA IR
COMLAB 0.64 0.06 0.32 -0.13 22.75 -0.15 13.45 0.20 2.18 0.40 4.80 -0.50 <0.05 bld <0.05 bld <0.05 bld 0.45 -0.02 AR GRAV
COMLAB 0.62 -0.62 0.32 -0.04 21.86 -1.24 13.10 -0.49 2.19 0.49 4.85 -0.18 0.08 0.12 0.06 0.39 0.04 0.36 0.46 0.27 4A ES
COMLAB 0.62 -0.62 0.33 0.41 22.85 -0.03 13.14 -0.42 2.06 -0.75 4.74 -0.88 0.12 1.81 0.09 2.49 0.08 3.00 0.48 1.13 CSA IR
COMLAB 0.65 0.40 0.32 -0.04 20.90 -2.42 13.50 0.30 2.22 0.78 4.88 0.01 0.10 0.97 0.06 0.39 0.04 0.36 0.46 0.27 CSA IR
COMLAB 0.64 0.06 0.31 -0.49 22.48 -0.49 12.71 -1.27 2.06 -0.75 4.79 -0.56 0.11 1.39 0.10 3.00 0.13 3.00 0.46 0.27 CSA IR
COMLAB 0.62 -0.62 0.32 -0.04 22.20 -0.83 14.10 1.49 2.26 1.16 4.96 0.52 0.05 -1.15 0.05 -0.31 0.01 -2.01 0.42 -1.44 CSA IR
COMLAB 0.62 -0.62 0.29 -1.39 22.71 -0.20 13.24 -0.22 2.16 0.21 4.95 0.46 0.06 -0.73 0.04 -1.01 0.02 -1.22 0.44 -0.58 CSA IR
COMLAB 0.61 -0.96 0.32 -0.04 22.76 -0.14 13.16 -0.38 2.13 -0.08 4.77 -0.69 0.08 -0.09 0.05 -0.17 0.04 0.05 0.44 -0.58 CSA IR
COMLAB 0.62 -0.62 0.29 -1.39 20.60 -2.79 12.15 -2.38 1.99 -1.42 4.39 -3.00 0.05 -1.15 <0.01 -3.00 <0.01 bld 0.46 0.27 CSA IR
COMLAB 0.69 1.76 0.33 0.41 22.87 -0.01 13.89 1.07 2.20 0.59 4.94 0.39 0.08 0.12 0.05 -0.31 0.03 -0.43 0.47 0.70 CSA IR
COMLAB 0.66 0.74 0.32 -0.04 23.40 0.64 13.50 0.30 2.16 0.21 4.82 -0.37 0.07 -0.30 0.05 -0.31 0.03 -0.43 0.42 -1.44 CSA IR
COMLAB 0.61 -0.96 0.30 -0.94 23.10 0.27 13.30 -0.10 2.12 -0.18 4.95 0.46 0.07 -0.30 0.06 0.39 0.04 0.36 0.44 -0.58 CSA IR
COMLAB 0.65 0.40 0.30 -0.94 22.20 -0.83 12.80 -1.09 2.21 0.69 4.77 -0.69 0.09 0.54 0.06 0.39 0.04 0.36 0.45 -0.15 CSA IR
COMLAB 0.63 -0.28 0.33 0.41 23.86 1.21 13.19 -0.32 2.17 0.30 4.94 0.39 0.07 -0.30 0.04 -1.01 0.04 0.36 0.43 -1.01 CSA IR
COMLAB 0.67 1.11 0.35 1.13 24.50 1.99 13.90 1.09 2.24 0.97 4.92 0.27 0.03 -1.83 <0.005 -3.00 0.01 -2.25 0.47 0.62 CSA IR
COMLAB 0.63 -0.21 0.35 1.40 23.24 0.45 13.99 1.27 2.22 0.78 4.86 -0.12 0.10 1.11 0.09 2.35 0.05 1.23 0.47 0.83 CSA IR
COMLAB 0.66 0.74 0.32 -0.04 nr nr 15.40 3.00 2.09 -0.46 4.83 -0.31 0.06 -0.73 0.05 -0.31 0.02 -1.22 0.45 -0.15 CSA IR
COMLAB 0.66 0.74 0.30 -0.94 22.20 -0.83 13.20 -0.30 2.22 0.78 4.95 0.46 0.05 -1.15 0.04 -1.01 <0.01 bld 0.45 -0.15 CSA IR
COMLAB 0.65 0.47 0.31 -0.40 22.50 -0.46 13.00 -0.69 2.15 0.11 4.89 0.08 0.06 -0.90 0.04 -0.94 0.02 -1.22 0.47 0.49 CSA IR
COMLAB 0.66 0.88 0.33 0.27 23.20 0.40 13.60 0.50 2.31 1.64 4.74 -0.88 0.06 -0.73 0.04 -1.08 0.02 -1.54 0.43 -1.09 CSA IR
COMLAB 0.60 -1.30 0.31 -0.49 23.23 0.43 13.00 -0.69 2.14 0.02 4.97 0.59 0.08 0.20 0.06 0.25 0.04 0.05 0.46 0.27 CSA IR
COMLAB 0.64 0.06 0.32 -0.04 22.69 -0.23 12.98 -0.73 2.23 0.88 4.93 0.33 0.08 0.12 0.06 0.39 0.04 0.36 0.45 -0.15 CSA IR
COMLAB 0.62 -0.76 0.32 0.05 22.70 -0.22 13.30 -0.10 2.01 -1.23 4.46 -2.67 0.13 2.15 0.11 3.00 0.18 3.00 0.46 0.06 CSA IR
COMLAB 0.56 -2.66 0.53 3.00 21.91 -1.18 13.68 0.66 1.92 -2.09 5.03 0.97 0.15 3.00 0.12 3.00 0.04 0.36 0.37 -3.00 4A ES
COMLAB 0.64 0.06 0.34 0.86 22.37 -0.62 13.34 -0.02 2.32 1.74 4.80 -0.50 0.09 0.54 0.07 1.09 0.12 3.00 0.49 1.56 AR,IH GRAV
COMLAB 0.70 2.10 0.21 -3.00 16.83 -3.00 12.52 -1.65 2.28 1.36 5.87 3.00 0.13 2.24 0.01 -3.00 <0.01 bld 0.32 -3.00 CSA IR
COMLAB 0.68 1.42 0.34 0.86 23.80 1.13 13.90 1.09 1.98 -1.51 4.79 -0.56 0.08 0.12 0.05 -0.31 0.04 0.05 0.47 0.70 CSA IR
COMLAB 0.67 1.08 0.35 1.31 23.30 0.52 13.81 0.91 2.18 0.40 4.96 0.52 0.07 -0.30 0.06 0.39 0.05 1.15 0.48 1.13 CSA IR
COMLAB 0.68 1.42 0.36 1.76 23.10 0.27 13.51 0.32 2.18 0.40 4.94 0.39 0.07 -0.30 0.04 -1.01 0.03 -0.43 0.47 0.70 CSA IR
MINELAB 0.63 -0.28 0.32 -0.04 25.41 3.00 14.64 2.56 2.25 1.07 5.25 2.37 bld bld bld bld bld bld 0.45 -0.15
MINELAB 0.48 -3.00 0.24 -3.00 22.10 -0.95 12.80 -1.09 1.81 -3.00 4.32 -3.00 0.03 -2.00 0.02 -2.41 0.02 -1.22 0.32 -3.00 CSA IR
MINELAB 0.60 -1.30 0.31 -0.49 21.58 -1.59 12.67 -1.35 2.05 -0.85 4.71 -1.07 0.07 -0.30 0.05 -0.31 0.03 -0.43 0.42 -1.44 CSA IR
MINELAB 0.68 1.42 0.34 0.86 20.66 -2.72 13.15 -0.40 2.12 -0.18 4.99 0.71 0.09 0.54 0.07 1.09 0.05 1.15 0.47 0.70 CSA IR
MINELAB 0.64 0.06 0.35 1.31 24.05 1.44 13.39 0.08 2.08 -0.56 4.95 0.46 0.09 0.54 0.07 1.09 0.08 3.00 0.44 -0.58 CSA IR
MINELAB 0.68 1.42 0.41 3.00 22.86 -0.02 13.87 1.03 2.29 1.45 4.78 -0.63 <0.30 bld <0.30 bld <0.30 bld 0.52 2.84 CSA IR
MINELAB 0.66 0.74 0.33 0.41 23.64 0.94 12.10 -2.48 2.08 -0.56 4.60 -1.78 0.07 -0.30 0.05 -0.31 0.04 0.36 0.46 0.27 CSA IR
MINELAB 0.61 -0.96 0.35 1.31 14.30 1.89 2.34 1.93 4.94 0.39 0.14 2.66 0.12 3.00 0.15 3.00 0.45 -0.15 CSA IR
MINELAB 0.61 -0.96 0.32 -0.04 23.13 0.31 13.31 -0.08 2.02 -1.13 4.91 0.20 0.06 -0.73 0.05 -0.31 0.04 0.36 0.45 -0.15 CSA IR
MINELAB 0.59 -1.64 0.30 -0.94 21.71 -1.43 12.77 -1.15 1.99 -1.42 4.67 -1.33 0.07 -0.30 0.06 0.39 0.02 -1.22 0.42 -1.44 CSA IR
MINELAB 0.57 -2.32 0.18 -3.00 22.67 -0.25 13.61 0.52 1.97 -1.61 4.79 -0.56 0.02 -2.42 0.03 -1.71 0.02 -1.22 0.41 -1.86 CSA IR
MINELAB 0.68 1.42 0.36 1.76 23.32 0.54 13.45 0.20 2.22 0.78 4.88 0.01 0.12 1.81 0.12 3.00 0.20 3.00 0.44 -0.58 CSA IR
MINELAB 0.66 0.74 0.23 -3.00 24.38 1.84 14.07 1.43 2.32 1.74 5.23 2.25 0.10 0.97 0.08 1.79 0.08 3.00 0.46 0.27 CSA IR
MINELAB 0.62 -0.62 0.35 1.31 21.10 -2.18 13.02 -0.65 2.12 -0.18 4.74 -0.88 0.07 -0.30 0.04 -1.01 0.05 1.15 0.48 1.13 3A ES
MINELAB 0.50 -3.00 0.17 -3.00 22.85 -0.03 13.68 0.66 2.11 -0.27 5.02 0.91 <0.10 bld <0.10 bld <0.10 bld 0.30 -3.00 FUS XRF
MINELAB 0.65 0.40 0.29 -1.39 21.63 -1.53 13.05 -0.59 2.19 0.49 4.61 -1.71 0.03 -2.00 0.01 -3.00 <0.001 bld 0.45 -0.15 CSA IR
MINELAB 0.73 3.00 0.37 2.21 23.29 0.51 13.76 0.81 2.21 0.69 5.06 1.16 0.12 1.81 0.12 3.00 0.09 3.00 0.51 2.41 CSA IR
MINELAB 0.63 -0.28 0.31 -0.49 22.42 -0.56 12.91 -0.87 2.03 -1.04 4.70 -1.14 0.07 -0.30 0.04 -1.01 0.04 0.36 0.43 -1.01 CSA IR
MINELAB 0.62 -0.62 0.33 0.41 22.82 -0.07 13.31 -0.08 2.11 -0.27 4.92 0.27 <0.10 bld <0.10 bld <0.10 bld 0.46 0.27 CSA IR
MINELAB 0.57 -2.32 0.31 -0.49 23.18 0.37 13.53 0.36 2.27 1.26 5.21 2.12 0.04 -1.57 0.05 -0.31 0.02 -1.22 0.42 -1.44
MINELAB 0.37 -3.00 0.08 -3.00 22.89 0.02 13.29 -0.12 1.87 -2.57 4.56 -2.03 0.13 2.24 0.18 3.00 0.17 3.00 0.22 -3.00 CSA IR
MINELAB 0.53 -3.00 0.26 -2.74 23.55 0.83 12.36 -1.96 1.77 -3.00 5.09 1.35 0.06 -0.73 0.04 -1.01 0.04 0.36 0.38 -3.00 CSA IR
MINELAB 0.64 0.06 0.30 -0.94 22.95 0.09 8.57 -3.00 2.43 2.79 4.76 -0.75 0.10 0.97 0.05 -0.31 0.04 0.36 0.47 0.70 CSA IR
MINELAB 0.67 1.08 0.34 0.86 21.70 -1.44 13.28 -0.14 2.08 -0.56 4.82 -0.37 0.08 0.12 0.06 0.39 0.04 0.36 0.47 0.70 CSA IR
MINELAB 0.62 -0.62 0.32 -0.04 21.98 -1.10 14.60 2.48 2.22 0.78 5.09 1.35 0.11 1.39 0.09 2.49 0.14 3.00 0.53 3.00 CSA IR
MINELAB 0.64 0.06 0.33 0.41 23.19 0.38 13.29 -0.12 2.18 0.40 4.86 -0.12 0.06 -0.73 0.04 -1.01 0.03 -0.43 0.44 -0.58 CSA IR
MINELAB 0.62 -0.62 0.31 -0.49 23.90 1.26 13.84 0.97 2.14 0.02 4.72 -1.01 <0.09 bld <0.09 bld <0.09 bld 0.43 -1.01 CSA IR
MINELAB 0.68 1.42 0.33 0.41 23.35 0.58 13.67 0.64 2.16 0.21 4.94 0.39 0.08 0.12 0.06 0.39 0.02 -1.22 0.46 0.27 CSA IR
MINELAB 0.54 -3.00 0.28 -1.84 16.12 -3.00 12.23 -2.23 1.72 -3.00 4.58 -1.90 0.06 -0.77 0.04 -0.87 0.02 -0.90 0.32 -3.00 CSA IR
MINELAB 0.62 -0.62 0.34 0.86 23.58 0.86 13.30 -0.10 1.95 -1.80 4.99 0.71 0.05 -1.15 0.05 -0.31 0.05 1.15 0.46 0.27 CSA IR
MINELAB 0.67 1.08 0.34 0.86 23.68 0.99 13.64 0.58 2.33 1.83 4.85 -0.18 0.08 0.12 0.07 1.09 0.05 1.15 0.47 0.70 CSA IR
MINELAB 0.48 -3.00 0.24 -3.00 23.05 0.21 13.76 0.81 1.91 -2.18 4.89 0.08 <0.10 bld <0.10 bld <0.10 bld 0.36 -3.00 CSA,FUS IR
MINELAB 0.64 0.09 0.37 2.16 24.79 2.35 14.54 2.36 2.31 1.61 5.15 1.73 0.12 1.98 0.11 3.00 0.09 3.00 0.50 1.90 CSA IR
MINELAB 0.58 -1.98 0.30 -0.94 24.79 2.35 13.15 -0.40 2.14 0.02 4.91 0.20 0.07 -0.30 0.04 -1.01 0.03 -0.43 0.41 -1.86 CSA IR
MINELAB 0.63 -0.28 0.32 -0.04 23.76 1.08 13.63 0.56 2.20 0.59 4.95 0.46 0.04 -1.57 0.02 -2.41 bld bld 0.43 -1.01 CSA IR
MINELAB 0.62 -0.62 0.30 -0.94 22.78 -0.12 13.27 -0.16 2.10 -0.37 4.95 0.46 0.05 -0.98 0.03 -1.43 0.01 -1.85 0.43 -1.01 CSA IR
MINELAB 0.62 -0.62 0.33 0.41 23.36 0.59 13.73 0.76 2.02 -1.13 4.90 0.14 0.08 0.12 0.07 1.09 0.05 1.15 0.43 -1.01 CSA IR
MINELAB 0.65 0.40 0.28 -1.84 23.65 0.95 13.33 -0.04 2.24 0.97 4.88 0.01 0.13 2.24 0.08 1.79 0.05 1.15 0.42 -1.44 CSA IR
MINELAB 0.67 1.08 0.36 1.76 23.10 0.27 12.55 -1.59 2.11 -0.27 5.05 1.10 0.07 -0.30 0.08 1.79 0.08 3.00 0.50 1.99 CSA IR
MINELAB 0.60 -1.30 0.31 -0.49 22.70 -0.22 13.22 -0.26 2.10 -0.37 4.86 -0.12 0.08 0.12 0.06 0.39 <0.05 bld 0.44 -0.58 CSA IR
MINELAB 0.64 0.06 0.31 -0.49 22.09 -0.96 12.71 -1.27 2.14 0.02 5.03 0.97 0.09 0.54 0.06 0.39 0.05 1.15 0.45 -0.15 CSA IR
MINELAB 0.66 0.74 0.31 -0.49 23.71 1.02 13.57 0.44 2.21 0.69 5.09 1.35 0.15 3.00 0.13 3.00 0.13 3.00 0.47 0.70 CSA IR
Highlighted values are outliers which are assigned a z-score of -3.00 or 3.00 in the standardised values.
Method Reading
Alex Stewart International Argentina SA - Perito Moreno Report Page 51
Sulphur Assay - Mean of Absolute Standardized Values - April 2019 Sulphur Assay - Mean of Standardized Values - April 2019
Standard Deviations Standard Deviations
COMLAB
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-3 -2 -1 0 1 2 30 1 2
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Alex Stewart International Argentina SA - Perito Moreno ReportPage 52
Carbon Round Robin - Summary Statistics, Assays, Standardised Values and Graphs - April 2019
Standard Reference GS319-1 GS319-2 GS319-3 GS319-4 GS319-5 GS319-6 GS319-7 GS319-8 GS319-9 GS319-10
MEAN (%) 0.03 0.04 0.47 0.41 0.08 0.16 0.20 0.09 0.43 0.03
STDEV (%) 0.01 0.01 0.06 0.03 0.01 0.02 0.02 0.02 0.02 0.01
95% CI (%) 0.00 0.00 0.01 0.01 0.00 0.00 0.00 0.01 0.01 0.00
95% CI (rel %) 10.12% 7.36% 2.80% 1.60% 3.55% 2.59% 2.15% 6.52% 1.21% 10.48% Carbon Assay - Mean of Absolute Standardized Values - April 2019MIN (%) 0.01 0.02 0.33 0.35 0.06 0.13 0.15 0.03 0.39 0.01
MEDIAN (%) 0.03 0.04 0.46 0.41 0.08 0.16 0.20 0.08 0.43 0.03
MAX (%) 0.06 0.07 0.62 0.48 0.11 0.21 0.24 0.15 0.49 0.06
IQR (%) 0.02 0.02 0.05 0.04 0.01 0.02 0.02 0.02 0.03 0.01
COUNT 53 54 73 67 55 68 67 67 69 54
Standard Reference GS319-1 GS319-2 GS319-3 GS319-4 GS319-5 GS319-6 GS319-7 GS319-8 GS319-9 GS319-10
Lab Reference assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score assay z-score
COMLAB 0.05 1.80 0.03 -0.95 0.44 -0.48 0.39 -0.77 0.08 -0.12 0.19 1.59 0.22 1.37 0.07 -0.71 0.40 -1.48 <0.01 bld CSA IR
COMLAB 0.02 -0.89 0.05 0.85 0.46 -0.13 0.40 -0.41 0.08 -0.12 0.16 -0.12 0.20 0.22 0.08 -0.28 0.43 -0.12 0.03 -0.15 CSA IR
COMLAB 0.04 0.90 0.05 0.85 0.44 -0.48 0.41 -0.04 0.09 0.80 0.17 0.45 0.19 -0.35 0.09 0.15 0.47 1.70 0.04 0.65 CSA IR
COMLAB 0.03 0.01 0.03 -0.95 0.56 1.64 0.46 1.79 0.13 3.00 0.16 -0.12 0.20 0.22 0.09 0.15 0.45 0.79 0.02 -0.96 CSA IR
COMLAB 0.07 3.00 0.05 0.85 0.54 1.28 0.43 0.69 0.10 1.73 0.19 1.59 0.21 0.80 0.12 1.43 0.45 0.79 0.06 2.27 CSA IR
COMLAB 0.02 -0.89 0.02 -1.85 0.42 -0.84 0.39 -0.77 0.06 -1.97 0.15 -0.69 0.18 -0.92 0.06 -1.14 0.41 -1.03 0.02 -0.96 CSA IR
COMLAB 0.03 0.01 0.06 1.75 0.46 -0.13 0.43 0.69 0.08 -0.12 0.15 -0.69 0.20 0.22 0.08 -0.28 0.44 0.34 0.04 0.65 CSA IR
COMLAB 0.03 0.01 0.09 3.00 0.60 2.34 0.45 1.43 0.15 3.00 0.21 2.74 0.24 2.51 0.12 1.43 0.42 -0.57 0.06 2.27 CSA IR
COMLAB 0.01 -1.79 0.03 -0.95 0.52 0.93 0.44 1.06 0.07 -1.04 0.17 0.45 0.21 0.80 0.06 -1.14 0.45 0.79 0.03 -0.15 CSA IR
COMLAB 0.03 0.01 0.04 -0.05 0.50 0.58 0.42 0.33 0.08 -0.12 0.17 0.45 0.22 1.37 0.09 0.15 0.45 0.79 0.04 0.65 CSA IR
COMLAB nr nr nr nr 0.44 -0.48 0.41 -0.04 nr nr 0.16 -0.12 0.20 0.22 nr nr 0.42 -0.57 0.03 -0.15 CSA IR
COMLAB nr nr nr nr 0.43 -0.66 0.41 -0.04 nr nr 0.16 -0.12 0.19 -0.35 nr nr 0.42 -0.57 nr nr CSA IR
COMLAB 0.02 -1.16 0.03 -1.40 0.52 0.84 0.43 0.77 0.06 -1.69 0.15 -0.46 0.19 -0.35 0.06 -1.01 0.44 0.52 0.01 -1.52 CSA IR
COMLAB <0.10 bld <0.10 bld 0.52 0.93 0.46 1.79 0.12 3.00 0.18 1.02 0.21 0.80 <0.10 bld 0.45 0.79 <0.10 bld CSA IR
COMLAB 0.02 -0.89 0.04 -0.05 0.48 0.22 0.43 0.69 0.08 -0.12 0.17 0.45 0.20 0.22 0.08 -0.28 0.44 0.34 0.03 -0.15 CSA IR
COMLAB 0.04 0.90 0.08 3.00 0.48 0.22 0.44 1.06 0.16 3.00 0.20 2.16 0.22 1.37 0.12 1.43 0.44 0.34 0.06 2.27 CSA IR
COMLAB 0.04 0.90 0.04 -0.05 0.46 -0.13 0.40 -0.41 0.08 -0.12 0.17 0.45 0.19 -0.35 0.08 -0.28 0.43 -0.12 0.04 0.65 CSA IR
COMLAB 0.09 3.00 0.09 3.00 0.49 0.40 0.43 0.69 0.22 3.00 0.19 1.59 0.22 1.37 0.12 1.43 0.46 1.24 0.11 3.00 CSA IR
COMLAB 0.02 -0.89 0.03 -0.95 0.43 -0.66 0.45 1.43 0.09 0.80 0.17 0.45 0.29 3.00 0.08 -0.28 0.42 -0.57 0.07 3.00 CSA IR
COMLAB 0.07 3.00 0.08 3.00 0.48 0.22 0.44 1.06 0.13 3.00 0.19 1.59 0.22 1.37 0.12 1.43 0.45 0.79 0.08 3.00 CSA IR
COMLAB 0.03 0.01 0.06 1.75 0.33 -2.43 0.35 -2.24 0.08 -0.12 0.17 0.45 0.20 0.22 0.09 0.15 0.44 0.34 0.05 1.46 CSA IR
COMLAB 0.04 0.90 0.05 0.85 0.45 -0.31 0.38 -1.14 0.08 -0.12 0.16 -0.12 0.19 -0.35 0.09 0.15 0.41 -1.03 0.03 -0.15 CSA IR
COMLAB 0.03 0.01 0.03 -0.95 0.47 0.05 0.40 -0.41 0.07 -1.04 0.13 -1.83 0.18 -0.92 0.06 -1.14 0.42 -0.57 0.02 -0.96 CSA IR
COMLAB <0.10 bld <0.10 bld 0.41 -1.01 0.40 -0.41 <0.10 bld 0.15 -0.69 0.14 -3.00 <0.10 bld 0.37 -2.84 <0.10 bld CSA IR
COMLAB 0.04 0.90 0.04 -0.05 0.48 0.22 0.41 -0.04 0.09 0.80 0.17 0.45 0.20 0.22 0.09 0.15 0.42 -0.57 0.05 1.46
COMLAB 0.03 0.01 0.05 0.85 0.46 -0.13 0.40 -0.41 0.08 -0.12 0.16 -0.12 0.19 -0.35 0.08 -0.28 0.44 0.34 0.03 -0.15 CSA IR
COMLAB 0.03 0.01 0.04 -0.05 0.47 0.05 0.41 -0.04 0.08 -0.12 0.17 0.45 0.20 0.22 0.08 -0.28 0.44 0.34 0.03 -0.15 CSA IR
COMLAB 0.05 1.80 0.05 0.85 0.45 -0.31 0.40 -0.41 0.09 0.80 0.15 -0.69 0.18 -0.92 0.08 -0.28 0.40 -1.48 0.03 -0.15 CSA IR
COMLAB 0.10 3.00 0.08 3.00 0.51 0.75 0.40 -0.41 0.12 3.00 0.19 1.59 0.18 -0.92 0.09 0.15 0.42 -0.57 0.07 3.00 CSA IR
COMLAB 0.06 2.70 0.07 2.65 0.48 0.22 0.42 0.33 0.11 2.65 0.18 1.02 0.22 1.37 0.11 1.00 0.44 0.34 0.07 3.00 CSA IR
COMLAB <0.05 bld 0.05 0.85 0.40 -1.19 0.37 -1.51 0.08 -0.12 0.14 -1.26 0.18 -0.92 0.08 -0.28 0.41 -1.03 <0.05 bld CSA IR
COMLAB 0.03 0.01 0.05 0.85 0.55 1.46 0.46 1.79 0.09 0.80 0.19 1.59 0.22 1.37 0.09 0.15 0.46 1.24 0.04 0.65 CSA IR
COMLAB <0.01 bld <0.01 bld 0.62 2.70 0.51 3.00 0.03 -3.00 0.15 -0.69 0.14 -3.00 0.03 -2.42 0.57 3.00 <0.01 bld CSA IR
COMLAB <0.01 bld <0.01 bld 0.39 -1.37 0.31 -3.00 <0.01 -3.00 0.05 -3.00 0.08 -3.00 <0.01 -3.00 0.34 -3.00 <0.01 bld CSA IR
COMLAB 0.02 -0.89 0.03 -0.95 0.47 0.05 0.41 -0.04 0.07 -1.04 0.15 -0.69 0.19 -0.35 0.07 -0.71 0.42 -0.57 0.02 -0.96 CSA IR
COMLAB 0.02 -0.53 0.04 0.13 0.48 0.22 0.42 0.33 0.08 -0.49 0.15 -0.69 0.20 0.22 0.07 -0.54 0.43 -0.12 0.03 -0.31 CSA IR
COMLAB 0.03 0.01 0.04 -0.05 0.36 -1.90 0.35 -2.24 0.14 3.00 0.17 0.45 0.18 -0.92 0.07 -0.71 0.42 -0.57 0.03 -0.15 CSA IR
COMLAB 0.04 0.90 0.05 0.85 0.39 -1.37 0.40 -0.41 0.10 1.73 0.18 1.02 0.23 1.94 0.07 -0.71 0.44 0.34 0.05 1.46 CSA IR
COMLAB 0.03 0.01 0.05 0.85 0.45 -0.31 0.39 -0.77 0.09 0.80 0.16 -0.12 0.21 0.80 0.10 0.57 0.42 -0.57 0.03 -0.15 CSA IR
COMLAB 0.04 0.90 0.04 -0.05 0.46 -0.13 0.41 -0.04 0.09 0.80 0.16 -0.12 0.20 0.22 0.11 1.00 0.46 1.24 0.04 0.65 CSA IR
COMLAB 0.01 -1.79 0.03 -0.95 0.42 -0.84 0.38 -1.14 0.06 -1.97 0.14 -1.26 0.16 -2.07 0.07 -0.71 0.39 -1.93 0.01 -1.76 CSA IR
COMLAB 0.03 0.01 0.05 0.85 0.46 -0.13 0.40 -0.41 0.08 -0.12 0.17 0.45 0.20 0.22 0.09 0.15 0.42 -0.57 0.03 -0.15 CSA IR
COMLAB 0.02 -0.71 0.04 -0.14 0.50 0.49 0.43 0.58 0.08 -0.49 0.16 -0.23 0.20 0.34 0.08 -0.50 0.44 0.52 0.03 -0.39 CSA IR
COMLAB bld bld bld bld 0.49 0.31 0.41 0.07 0.10 2.00 0.15 -0.43 0.20 -0.01 bld bld 0.45 0.95 bld bld CSA IR
COMLAB 0.03 0.01 0.04 -0.05 0.45 -0.31 0.40 -0.41 0.09 0.80 0.16 -0.12 0.20 0.22 0.08 -0.28 0.44 0.34 0.03 -0.15 CSA IR
COMLAB 0.02 -0.80 0.02 -1.49 0.44 -0.48 0.42 0.47 0.08 0.07 0.16 -0.18 0.20 0.22 0.09 -0.07 0.46 1.24 0.01 -1.52 CSA IR
COMLAB 0.03 0.37 0.46 3.00 0.52 0.84 0.42 0.22 0.08 0.07 0.16 -0.18 0.21 0.80 0.08 -0.25 0.43 -0.25 0.05 1.25 CSA IR
COMLAB 0.02 -0.89 0.04 -0.50 0.46 -0.20 0.39 -0.77 0.08 -0.58 0.17 0.45 0.22 1.08 0.07 -0.71 0.42 -0.57 0.03 -0.15 CSA IR
COMLAB 0.03 0.01 0.04 -0.05 0.45 -0.31 0.38 -1.14 0.08 -0.12 0.15 -0.69 0.20 0.22 0.07 -0.71 0.42 -0.57 0.03 -0.15 CSA IR
COMLAB 0.15 3.00 0.14 3.00 1.33 3.00 1.10 3.00 0.24 3.00 0.46 3.00 0.57 3.00 0.24 3.00 1.19 3.00 0.13 3.00 CSA IR
COMLAB 0.02 -0.89 0.03 -1.13 0.47 0.05 0.42 0.33 0.06 -1.97 0.15 -0.69 0.19 -0.35 0.05 -1.56 0.44 0.34 0.03 -0.15 CSA IR
COMLAB <0.10 bld <0.10 bld 0.46 -0.13 0.38 -1.14 <0.10 bld 0.15 -0.69 0.18 -0.92 <0.10 bld 0.41 -1.03 <0.10 bld CSA IR
COMLAB 0.08 3.00 0.04 -0.05 0.44 -0.48 0.38 -1.14 0.08 -0.12 0.17 0.45 0.19 -0.35 0.13 1.86 0.46 1.24 0.02 -0.96 CSA IR
MINELAB 0.12 3.00 0.17 3.00 0.57 1.81 0.42 0.33 0.16 3.00 0.23 3.00 0.26 3.00 0.15 2.71 0.49 2.60 0.10 3.00 CSA IR
MINELAB 0.03 0.01 0.04 -0.05 0.46 -0.13 0.40 -0.41 0.08 -0.12 0.15 -0.69 0.18 -0.92 0.08 -0.28 0.40 -1.48 0.03 -0.15 CSA IR
MINELAB 0.04 0.90 0.05 0.85 0.50 0.58 0.43 0.69 0.09 0.80 0.18 1.02 0.22 1.37 0.10 0.57 0.46 1.24 0.04 0.65 CSA IR
MINELAB 0.04 0.90 0.05 0.85 0.35 -2.07 0.30 -3.00 0.08 -0.12 0.13 -1.83 0.16 -2.07 0.08 -0.28 0.44 0.34 0.04 0.65 CSA IR
MINELAB 0.15 3.00 0.15 3.00 0.45 1.43 0.17 3.00 0.24 3.00 0.26 3.00 0.15 2.71 0.46 1.24 0.15 3.00 CSA IR
MINELAB 0.03 0.01 0.04 -0.05 0.50 0.58 0.40 -0.41 0.10 1.73 0.16 -0.12 0.19 -0.35 0.09 0.15 0.45 0.79 0.03 -0.15 CSA IR
MINELAB 0.05 1.80 0.05 0.85 0.34 -2.25 0.29 -3.00 0.08 -0.12 0.13 -1.83 0.15 -2.64 0.08 -0.28 0.31 -3.00 0.04 0.65 CSA IR
MINELAB <0.05 bld <0.05 bld 0.47 0.05 0.41 -0.04 0.08 -0.12 0.15 -0.69 0.20 0.22 0.09 0.15 0.45 0.79 <0.05 bld CSA IR
MINELAB 0.02 -0.89 0.04 -0.05 0.46 -0.13 0.39 -0.77 0.08 -0.12 0.16 -0.12 0.20 0.22 0.08 -0.28 0.43 -0.12 0.03 -0.15 CSA IR
MINELAB 0.04 0.90 0.05 0.85 0.51 0.75 0.45 1.43 0.09 0.80 0.18 1.02 0.21 0.80 0.09 0.15 0.46 1.24 0.04 0.65 CSA IR
MINELAB 0.03 0.01 0.04 -0.05 0.51 0.75 0.43 0.69 0.08 -0.12 0.17 0.45 0.20 0.22 0.08 -0.28 0.45 0.79 0.04 0.65
MINELAB 0.33 3.00 0.32 3.00 2.22 3.00 1.42 3.00 0.62 3.00 0.53 3.00 0.30 3.00 0.11 1.00 0.30 -3.00 0.36 3.00 CSA IR
MINELAB 0.01 -1.79 0.02 -1.85 0.41 -1.01 0.29 -3.00 0.07 -1.04 0.13 -1.83 0.17 -1.50 0.06 -1.14 0.40 -1.48 0.01 -1.76 CSA IR
MINELAB <0.09 bld 0.09 3.00 0.60 2.34 0.50 3.00 0.15 3.00 0.23 3.00 0.25 3.00 0.13 1.86 0.49 2.60 <0.09 bld CSA IR
MINELAB 0.09 3.00 0.10 3.00 0.59 2.17 0.48 2.53 0.16 3.00 0.22 3.00 0.27 3.00 0.14 2.28 0.50 3.00 0.11 3.00 CSA IR
MINELAB 0.03 0.01 0.04 -0.05 0.45 -0.29 0.39 -0.96 0.09 0.62 0.15 -0.69 0.19 -0.64 0.07 -0.79 0.41 -1.25 0.04 0.33 CSA IR
MINELAB 0.01 -1.79 0.03 -0.95 0.44 -0.48 0.38 -1.14 0.06 -1.97 0.15 -0.69 0.16 -2.07 0.05 -1.56 0.41 -1.03 0.01 -1.76 CSA IR
MINELAB 0.03 0.01 0.04 -0.05 0.47 0.05 0.40 -0.41 0.08 -0.12 0.16 -0.12 0.20 0.22 0.08 -0.28 0.41 -1.03 0.02 -0.96 CSA IR
MINELAB <0.10 bld <0.10 bld 0.43 -0.66 0.42 0.33 <0.10 bld 0.18 1.02 0.20 0.22 <0.10 bld 0.43 -0.12 <0.10 bld CSA,FUS IR
MINELAB 0.03 -0.26 0.05 0.40 0.42 -0.77 0.37 -1.36 0.09 0.34 0.14 -1.49 0.18 -0.69 0.07 -0.62 0.39 -1.93 0.03 -0.23 CSA IR
MINELAB 79.37 3.00 0.02 -1.85 0.46 -0.13 0.40 -0.41 0.07 -1.04 0.14 -1.26 0.18 -0.92 0.06 -1.14 0.41 -1.03 0.02 -0.96 CSA IR
MINELAB 0.04 0.90 0.05 0.85 0.45 -0.31 0.40 -0.41 0.08 -0.12 0.16 -0.12 0.20 0.22 0.08 -0.28 0.43 -0.12 0.04 0.65 CSA IR
MINELAB 0.02 -0.62 0.03 -0.77 0.40 -1.19 0.36 -1.87 0.07 -1.32 0.14 -1.26 0.18 -0.92 0.07 -0.79 0.41 -1.03 0.03 -0.55 CSA IR
MINELAB <0.01 bld <0.01 bld 0.42 -0.84 0.32 -3.00 <0.01 -3.00 0.08 -3.00 0.17 -1.50 <0.01 -3.00 0.31 -3.00 <0.01 bld CSA IR
MINELAB 0.01 -1.79 0.02 -1.85 0.49 0.40 0.45 1.43 0.09 0.80 0.14 -1.26 0.20 0.22 0.09 0.15 0.42 -0.57 0.01 -1.76 CSA IR
MINELAB 0.04 0.90 0.05 0.85 0.48 0.22 0.43 0.69 0.09 0.80 0.16 -0.12 0.20 0.22 0.09 0.15 0.42 -0.57 0.03 -0.15 CSA IR
Highlighted values are outliers which are assigned a z-score of -3.00 or 3.00 in the standardised values.
Method Reading
Alex Stewart International Argentina SA - Perito Moreno Report Page 53
Carbon Assay - Mean of Absolute Standardized Values - April 2019 Carbon Assay - Mean of Standardized Values - April 2019
Standard Deviations Standard Deviations
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Alex Stewart International Argentina SA - Perito Moreno ReportPage 54
MAXXAM ONTARIO - NEUTRON ACTIVATION ANALYSIS REPORT
NAA Results - Gold and Base Metals
G319-1 G319-2 G319-3 G319-4 G319-5 G319-6 G319-7 G319-8 G319-9 G319-10 GLG319-1 GLG319-2 GLG319-3 GLG319-4 GLG319-5 GBM319-1 GBM319-2 GBM319-3 GBM319-4 GBM319-5 GBM319-6 GBM319-7 GBM319-8 GBM319-9 GBM319-10 GBM319-11 GBM319-12 GBM319-13 GBM319-14 GBM319-15 GBM319-16
Sb ppm <0.2 <0.2 <0.2 <0.2 <0.2 <0.2 1.2 <0.2 0.6 <0.2 <0.2 0.2 <0.2 1.4 0.5 5.1 <0.2 1.2 0.5 369 171 489 3.6 12.2 17.1 451 176 4.9 537 485 3.5
As ppm <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 893 0.8 3.1 <0.5 68 0.5 <0.5 18.3 25.1 55.5 64.5 882 383 812 375 1250 114 271 2145 2050 479 54.6 839 1270 117
Ba ppm 286 217 250 326 329 256 296 269 268 335 302 <100 353 177 487 176 366 315 446 220 236 <100 <100 394 <100 <2690 240 120 217 <100 <100
Br ppm <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 4 <2 <2 <31 <2 <2 <2 <2 4
Cd ppm <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 23 <10 <10 <10 <10 <10 <419 25 <10 47 <10 <10
Ce ppm 32 27 29 35 35 27 30 30 31 31 35 <10 33 21 43 29 34 34 40 32 29 29 33 37 22 60 81 28 35 33 36
Cs ppm 2 <2 <2 2 2 <2 1 <2 8 <2 2 <2 2 3 2 <2 2 <2 2 <2 <2 5 2 9 2 <21 2 <2 <2 4 4
Cr ppm 104 144 146 109 105 145 108 146 94 93 102 <20 103 181 <20 182 103 104 57 108 154 <20 224 112 <20 <152 102 177 104 <20 229
Co ppm 21 30 32 23 24 32 223 30 19 22 93 <2 22 55 45 81 93 220 98 565 286 47 55 18 3 399 286 80 96 48 56
Eu ppm 0.8 1.4 1.3 1.3 1.4 1.5 1 1.1 1.2 0.6 1.4 <0.5 1.1 1.6 <0.5 1.9 1.1 1.2 0.6 1.4 1.4 1 2.3 0.8 0.6 <5.4 1.4 1.8 1.3 1.3 2.1
Au ppb 1400 4000 5400 500 3940 4100 2350 1750 102000 53000 25 <10 260 107 42 6830 25 2230 966 2760 853 457 159 <10 94 61200 35200 7790 27000 457 110
Hf ppm <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <14 6 <5 <5 <5 <5
Ir ppb <50 <50 <50 <50 <50 <50 <50 <50 <50 <50 <50 <50 <50 <50 <50 <50 <50 <50 <50 <50 <50 <50 <50 <50 <50 <475 <50 <50 <50 <50 <50
Fe % 4.8 6.6 6.7 5.1 5.1 6.7 5.2 6.6 4.6 4.8 5.1 <0.5 4.9 8.2 1.4 9.7 5 5.2 3.1 5.3 6.9 12.7 1.6 7.7 18.8 20.8 13.4 9.6 8.3 12.8 1.7
La ppm 17 14 14 19 19 14 17 14 16 17 18 <2 17 9 25 12 18 17 23 18 13 14 15 19 12 35 45 12 17 14 15
Lu ppm 0.45 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 <0.2 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.5 0.5 0.3 0.2 0.9 0.3 0.4 0.4 0.5 0.5
Mo ppm <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 16.3 <10 201 <10 <10 <10 168 63 <10 <10 <10 <10 1900 795 203 98 <10 <10
Ni ppm 32 33 51 36 24 40 36 39 <20 38 150 <20 25 95 130 90 120 30 <20 460 240 <20 60 50 <20 880 2100 100 310 <20 60
Rb ppm 84 48 59 72 78 48 91 47 140 112 75 <20 105 <20 196 <20 59 73 133 82 35 39 22 93 29 <297 31 25 58 50 31
Sm ppm 4.2 4.5 4.6 4.3 4.2 4.5 4.1 4.4 4.2 4.1 4.2 <0.2 4.2 4.7 3.5 4.9 4.2 4.1 3.8 4.4 4.7 4.5 6.4 3.2 1.9 4.7 5.9 4.9 4.1 4.5 6.5
Sc ppm 17.9 25.6 26.1 19.4 19.2 25.5 19.4 25 17.3 17.5 19.1 <0.2 18 31.1 3.5 30.1 18.7 19.3 11.2 18.7 26.2 10.8 45.2 14.1 8.6 6.4 4.8 29.7 18.7 10.7 46.3
Se ppm <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 10 <10 <10 15 <10 12 231 53 <10 23 <10 21
Ag ppm <5 17 14 <5 9 30 <5 <5 46 19 <5 <5 <5 <5 <5 8 <5 7 <5 7 <5 48 9 <5 <5 100 110 8 36 50 9
Na % 1.95 2.24 2.27 2.43 2.39 2.28 2.32 2.28 1.86 1.94 2.34 <0.1 1.95 2.13 1.71 2.09 2.32 2.3 2.45 2.32 2.23 0.1 0.2 0.4 0.14 0.43 0.91 2.07 1.79 0.1 0.2
Ta ppm <2 3 2 <2 <2 <2 <2 <2 3 3 <2 <2 <2 <2 2 <2 2 <2 <2 <2 <2 <2 <2 <2 <2 <16 2 <2 <2 <2 <2
Te ppm <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <145 <20 <20 <20 <20 <20
Tb ppm 1 1 <1 1 1 1 1 2 <1 1 1 <1 1 1 1 1 1 1 1 <1 <1 <1 1 1 <1 <10 <1 1 <1 <1 1
Th ppm 11.7 7.2 6.7 12.1 13.1 6.5 11.4 6.6 11.5 11.6 12 0.7 12.3 1.3 22.9 2.3 11.6 10.8 18.1 11.1 5.8 2 1.2 4.8 3.3 <11.7 14 2 7.7 1.9 1.5
Sn ppm <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <16800 <200 <200 <200 <200 <200
W ppm <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 <5 20 6 <5 6 1800 25 <5 6 20 7
U ppm 6 3 4 7 8 4 6 4 5 7 7 <1 7 <1 13 <1 7 6 10 7 3 <1 5 1 <1 <36 6 <1 5 <1 5
Yb ppm 2.8 3 3 2.8 2.9 2.9 2.8 2.9 2.8 2.5 2.7 <0.5 2.8 3 2.4 3 2.7 2.5 2.4 2.6 2.9 2.9 3.4 2 1.2 <7.01 1.5 3 2.4 3 3.7
Zn ppm <200 <200 <200 <200 <200 <200 4190 <200 <200 <200 <200 <200 <200 <200 351 420 <200 4100 1800 3860 1800 620 <200 670 800 15400 8500 440 22500 610 <200
Zr ppm <500 <500 <500 <500 <500 <500 <500 <500 <500 <500 <500 <500 <500 <500 <500 <500 <500 <500 <500 <500 <500 <500 <500 <500 <500 <5020 <500 <500 <500 <500 <500
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International Laboratory Round RobinApril 2019
SUMMARY REPORT OF INDIVIDUAL LABORATORY PERFORMANCE
Alex Stewart International Argentina SA - Perito Moreno
GOLD SAMPLESAnalysis Samples Sent Reported Number of Outliers
Fire Assay Yes (10) Yes 0
Aqua Regia No - -
Low Level Yes (5) Yes 0
Au & Ag IN CARBON SAMPLES
The laboratory were not sent any samples for Au & Ag in carbon analysis.
Analysis Reported Number of Outliers
Gold - -
Silver - -
BASE METAL SAMPLES
The laboratory were not sent any samples for Base Metal analysis.
Total Digest Partial Digest
Analysis Reported Number of Outliers Reported Number of Outliers
Silver - - - -
Copper - - - -
Lead - - - -
Zinc - - - -
Nickel - - - -
Arsenic - - - -
Cobalt - - - -
ORE GRADE BASE METAL SAMPLES
The laboratory were not sent any Ore Grade Base Metal samples for analysis. Charts
Analysis Reported Number of Outliers
Copper - -
Lead - -
Zinc - -
Nickel - -
Silver - -
Sulphur - -
SULPHUR SAMPLESThe laboratory were not sent any Sulphur samples for analysis.
Analysis Reported Number of Outliers
Sulphur - -
Carbon - -
ERROR GRAPHS
FURTHER INFORMATION
Lab Abbreviation - ASA PERITO MORENO Page 56
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The samples analysed in this survey are available for purchase. Please contact us or visit www.geostats.com.au for a
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Geostats Pty LtdSummary Report
0 1 2
Fire Assay
Low Level Gold
Standard Deviations
Mean of Absolute Standardized Values April 2019 October 2018
.
-3 -2 -1 0 1 2 3
Fire Assay
Low Level Gold
Standard Deviations
Mean of Standardized Values April 2019 October 2018