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NPV Scheduler is the most complete andversatile tool for strategic open pit mine

planning on the market. Functionalityspans everything from preliminarymodeling through to building detailedlife-of-mine plans with practicalpush-backs and scheduling.

NPV SchedulerThe complete strategic mine planning system

cae.com/mining

Geological ModelImport a geological block model with grade, lithology,

topography, surfaces and mining boundaries. Digitize

plan data. Model may also contain recovery, cost and

slope information.

Economic ModelInput commodity prices, mining costs, processing

costs and recoveries to create a three-dimensional

economic model with intrinsic block values.

Nested PitsGenerate a set of nested Lerchs-Grossmann (LG) pit

shells that represent varying economic parameters

and generate an Ultimate Pit Optimal Extraction

Sequence (OES).

Practical PushbacksUse the LG shells, Optimal Extraction Sequence and

pushback targets to generate practical pushback

shapes that respect good mine design practice.

Optimized ScheduleSchedule pushbacks according to production targets

and mining constraints for maximum optimization.

Refine the schedule with blending and cut-off grade

optimization. Include haulage truck hours as an

optimization target.

Methodology

Optimized strategic mine plan with design and

schedule contained in one system

Ultimate pits are optimized for maximum cash flow

(base and precious metals) or maximum reserve

life (industrial minerals). Pits are optimally sequenced

to maximize NPV or achieve material blend

Fast, practical, mineable pushback generation

Sophisticated scheduling, blending, stockpiling, grade

optimization, process optimization, production

targeting and haulage optimization

Easy-to-use methodology with multiple layers of

sophistication, from quick studies to detailed mine

plans

From Geological

Model to Mine Plan

Benefits

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nside NPV Scheduler

First Pushback ? Last Pushback ?

Determining Pushback

ShapesPushbacks are based on LG shells, but

ractical mining requires careful formation of thenal pushback shapes. NPV Scheduler creates

he pushbacks using LG shells and the Ultimate

Pit OES, but it also optimizes the push back

hapes for practical mining, while retaining the

maximum possible NPV.

Visualization, Animation

and ReportingNPV Scheduler has a wide variety of reporting

and visualization options, from full reports with

customizable content to 3D rendered life of mine

animations.

Material Allocation

OptimizerMAO examines the processing of each blockeach pad, mill, stockpile, waste etc.) and

eallocates it to a new method based on overall

economic value. MAO optimizes stockpiling

and multiple blended products (e.g. iron ore &

ndustrial minerals) where production targets and

varying product specifications can be blended

rom different inputs.

Mine Flow OptimizerMFO increases NPV by optimizing cut-off grades.

It adjusts the schedule to create more value by

mining a higher grade of ore earlier when that

outweighs the cost of wasting or stockpiling

lower grade ore.

Geo-Risk AssessmentGRA provides a mechanism for understanding

the risk associated with the uncertainty of grade

distribution in the resource model. It does this

by considering conditionally-simulated models in

the strategic planning process. GRA generates

a set of risk-rated pits which can be used to

limit the impact of grade uncertainty on planning

outcomes.

Capital CostsNPV Scheduler can model multiple types of

capital costs such as pushback start-up costs,

costs that occur at fixed times or are associated

with the removal of material within specified

boundaries.

Haulage OptimizationIn order to produce a schedule with practical

haulage fleet requirements NPV Scheduler

allows the inclusion of haulage truck hours as

an integral optimization target. The scheduler

will allocate blocks taking into account their

transport requirements as well as their material

types and values. This is in contrast to other

systems that typically provide tools to analyze the

haulage requirements after a schedule has been

developed.

AUSTRALIA

PerthLevel 3, 41-43 Ord StreetWest Perth WA 6005

Tel +61 8 6462 0900

BrisbaneLevel 15, 120 Edward StreetBrisbane, Queensland, 4000

Tel +61 7 3248 0000

BRAZIL

Belo HorizonteAlameda da Serra, 360 7oandarVila de Serra Nova Lima MG

34000-000Tel +55 31 3264 9377

CANADA

Montreal3200 GuenetteSaint-Laurent, QuebecH4S 2G5 Canada

Tel +1 514 341 2000 ext. 2404

Sudbury866 Newgate Avenue, Unit 2Sudbury, Ontario P3A 5J9

Toll-free: 1 800 240 6941Tel +1 705 688 0101

Vancouver2000-1066 W Hastings St

Vancouver, BC V6E 3X2Canada

Tel + 1 604 601 8233

CHILE

SantiagoSanta Magdalena, 75Oficina 903, ProvidenciaSantiago 751-0038

Tel +56 2 2334 5952

CHINA

505A, 19A West Chegongzhuang RoadBeijing, China 100048

Tel: +86-137-0122-9235

COLOMBIA

Calle 29 N 41 - 105 Of. 1206Edificio SohoMedelln, Antioquia

Tel +57 - 4 - 403 17 75

INDIA

New Delhi601, Elegance Tower

Jasola District CentreNew Delhi - 110 025India

Tel +91 11 41290000

KAZAKHSTAN

Karaganda201, 2 Lenin Street100012, KaragandaRepublic of Kazakhstan

Tel +7 7212 425138

MEXICO

Callejn del Capuln #101, esquina conAvenida Torren, centro HistricoZacatecas, Zac.C.P. 98000

Tel +52 492 22 122

PERU

Lima

Av. Manuel Olgun, 335 Oficina 503Torre Link TowerSurco, Lima - Peru

Tel +51 1 434 2727

SOUTH AFRICA

Johannesburg9 Fricker RoadIllovo Boulevard, IllovoJohannesburg, 2196Republic of South Africa

Tel +27 11 772 7960

UNITED KINGDOM

WellsUnit A, Underwood Business ParkWookey Hole Road,Wells, Somerset BA5 1AFUnited Kingdom

Tel +44 1749 683 350

UNITED STATES OF AMERICADenver10901 W. Toller Drive #205Littleton, CO 80127United States

Tel +1 303 985 7713

caemining@cae.com

Global offices

2014 CAE Mining