M40040-ESTI-GE-001_R0.

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BARRICK amec!J

BARRICK PROYECTO

N° M40040

ZALDIVAR D.EEPSULPHIDES PROJECT

SCOPING STUDY

N° M40040-ESTI-GE-001

BASIS OF ESTIMATE

Prepared by

AMEC International (Chile) S.A.

Approved by

Discipline Leader

Engineering ManagerProject ManagerClient

Alonso Pera ita

(JM) (TM)(GT)

Rev. By Issued for RevisionDate Approved

A CYB CY

Internal Coordination 16.11.10For Client Review 07.12.10 23.12.10

o CY

Comments:

A roved 23.12.10

M40040-ESTI-GE-001_Rev 0.doc Page 2 de 21

T ABL E O F CO NT E NT S

P AG E

1.0 GENERAL.........................................................................................................................................31.1 Objective ..............................................................................................................................31.2 Project Location ...................................................................................................................31.3 Type and Precision of Estimate...........................................................................................31.4 Capex Scope .......................................................................................................................31.5 Scope of Work .....................................................................................................................3

2.0 SCHEDULE ......................................................................................................................................4

3.0 WORK BREAKDOWN STRUCTURE (WBS) ...................................................................................53.1 WBS.....................................................................................................................................5

4.0 SCOPING STUDY ENGINEERING REQUIREMENT ......................................................................64.1 Project scope and general requirement ..............................................................................64.2 Basis for engineering determination ....................................................................................74.3 Basis for Capital Cost Estimating ........................................................................................8

5.0 PROJECT DIRECT COST ...............................................................................................................95.1 Quantity Take-Off Development ..........................................................................................95.2 Pricing ..................................................................................................................................95.3 Unit Man Hours and Construction Labor ...........................................................................105.4 Construction Indirect Cost .................................................................................................125.5 Allowances.........................................................................................................................12

6.0 PROJECT INDIRECT COST ..........................................................................................................126.1 EPCM Services .................................................................................................................126.2 Temporary facilities ...........................................................................................................126.3 Construction Services........................................................................................................126.4 Freight................................................................................................................................136.5 Construction Testing & Commissioning ............................................................................136.6 Spare Parts ........................................................................................................................136.7 First Fill ..............................................................................................................................136.8 Taxes and Duties...............................................................................................................136.9 Owner's Cost .....................................................................................................................13

7.0 CONTINGENCY .............................................................................................................................13

8.0 CAPITAL COST ESTIMATE REPORT...........................................................................................138.1 Capex ................................................................................................................................13

9.0 EXCLUSIONS.................................................................................................................................149.1 Areas excluded from the Capex ........................................................................................149.2 Evaluation Cost excluded from the Capex ........................................................................14

A P P E N D I X

APPENDIX A Matrix for Quantities Determination APPENDIX B Matrix for Prices Determination APPENDIX C AMEC Cost Estimate Template


1.0 GENERAL

1.1 Objective

The purpose of this Basis of Estimate is to establish the methods and procedures for the development of the capital cost estimate (CAPEX) prepared by AMEC for Barrick Zaldivar’s Deep Sulphides Project. This estimate will form part of a scoping study which will used by Barrick to evaluate the economic viability of the project.

1.2 Project Location

The Zaldivar property is located in Region II of Antofagasta, of northern Chile near the city ofAntofagasta at an elevation of over 3,300 masl.

1.3 Type and Precision of Estimate

The cost estimate is a Scoping Study Estimate, Type 1 in accordance with AMEC Standard, with an accuracy of ±30% to ±50% and an 85% confidence level.

1.4 Capex Scope

The Estimate scope will include preparation of capital cost that will cover all the phases of the project, which include: engineering, procurement, construction and start up of all the facilities of this project.

1.5 Scope of Work

The scope of facilities covered by this estimate basis is:

• Process facilities: primary crushing, SAG/ball milling, copper and molybdenum flotation, concentrate and tailings dewatering, concentrate loading and dispatch and tailings deposition. Trade-off study estimates will be produced to evaluate SAG milling versus HPGR crushing and the treatment on- site of copper concentrate versus sale of concentrate to a smelter. The on-site treatment comprises pressure oxidation of the concentrate, dispatch of the copper bearing solution to the existing SX plant, washing and dewatering of the leach residue followed by leaching with sodium cyanide in a CIL circuit and desorption and gold recovery.

• Site facilities: offices, shops, and power & water distribution and treatment, expanded operations camp

o Infrastructure: site roads, water supply from Negrillar and sea water supply

o Temporary construction facilities


2.0 SCHEDULE

Table 2-1: Table Estimate Milestone Date

Milestone Planned Finish DateEstimating plan Nov 19, 2010Coordination with POX Senior Estimator Nov 17, 2010Basis of estimate Dec 17, 2010Main Equipment List Dec 17, 2010Trade off (HPGR v/s SAG) Dec 17, 2010Plot Plan Dec 30, 2010

Main Quantities (from rough sketch) Jan 07, 2011Estimate Draft Jan 14, 2011Internal review Jan 21, 2011Final Report Jan 28, 2011


3.0 WORK BREAKDOWN STRUCTURE (WBS)

3.1 WBS

The Project WBS define by BARRICK for main areas of the Project is shown in table 3-1.

Table 3-1: WBS

WBS Level Full WBS Code Description by WBS Comments

1 2 3 4 5 6

31 31 ORE HANDLING Summary of Ore Handling Costs(No direct charges at this level)

41 41 PROCESSING PLANT Summary of Processing Plant Costs(No direct charges at this level)

51 51 TAILINGS / RECLAIM & WATER TREATMENT FACILITIES Summary of Tailings / Reclaim(No direct charges at this level)

61 61 ON-SITE INFRASTRUCTURE Summary of On-Site Infrastructure(No direct charges at this level)

71 71 OFF-SITE INFRASTRUCTURE Summary of Off-Site Infrastructure(No direct charges at this level)

81 81 OWNER'S COSTS Summary of Owners Cost(No direct charges at this level)

91 91 INDIRECT COSTS Summary of Indirect Cost(No direct charges at this level)

PP PP PROVISIONS Summary of Provisions(No direct charges at this level)

00 0000 Project Wide or Non-specific WBS elements


4.0 SCOPING STUDY ENGINEERING REQUIREMENT

The required level of engineering detail shall be in accordance with AMEC standards for a ScopingStudy Estimate as shown in the following tables.

4.1 Project scope and general requirement

Item Type 1

Product(s) and Process(es) defined with associated capacities Required

Location of Proposed Project Required

Define Scope of work c/w Battery limits. Required

Work Breakdown Structure Required

Basis of Estimate Required

Location specific unit cost criteria. for bulks

Location specific craft labor rate

Location specific craft labor productivity factors

Location specific taxes, tariffs, duties, & freight type costs

Temporary site facilities & services

Construction Mobile equipment plan

EPCM services estimate c/w manpower plan

Capital Cost Estimate Execution Plan

Logistics Plan

Procurement Plan

Project EPC Schedule

Owners costs

4.2 Basis for engineering determination

Item Type 1

Mining EngineeringNo. of drill holes 0 - 10

Bulk Sampling None

Resource/Reserve Analysis Cross Sections

Geology Preliminary

Geotechnical Preliminary

Mining Method - Plan Assumed

Mine Layout None

Equipment Selection Hypothetical

Rock Mechanics None

Visit by Mining Engineer Possibly

Process EngineeringProcess Flow Sheets Assumed

Bench Scale Tests If Available

Pilot Plant Tests Not Needed

Energy & Material Balance Not Essential

Preliminary P&ID’s Not Needed

P&ID’s and Specifications

Design Criteria

Utilities EngineeringRough Utility requirements (steam, water, electricity, etc.)

Utilities Heat Balance

Utilities Process Flow Diagrams

Plant & Infrastructure SitesPlant Capacity Assumed

Plant and Other Sites Assumed

Maps and Surveys None

Soil & Foundation Tests None

Site Visit by Project Team Possibly

Facilities DesignNature of Facilities Conceptual

Equipment Selection Hypothetical

GA’s Mechanical None

GA’s Structural None

GA’s Other None

Piping Drawings None

Electrical Drawings None

Specifications None


4.3 Basis for Capital Cost Estimating

Item Type 1Level of Definition (expressed as a percentage of total engineering) 0% to 2% of full project definition

Expected Accuracy Range ±30% to ±50%

Methodology – Typical Estimating Method Capacity factored, parametric models, judgement or analogy

Estimates Prepared by Project Engineer/SR. Estimator

Major Vendor Quotations / Tenders – Supporting the Estimates In House Historical Data – Benchmarking

Minor Vendor Quotations / Tenders – Supporting the Estimates In House Historical Data – Benchmarking

Labor Rates/Crew Mix Assumed

Labor Productivity Factored

Labor Productivity Loss Assumed

Construction Equipment Historical – Based on $ / man-hour

Civil Work Rough Sketch

Infrastructure Rough Sketch

Concrete Rough Sketch

Structural Work Rough Sketch

Architectural Rough Sketch & Allowances

Sprinkler Systems Factored / cost Capacity

Mechanical HVAC Factored / cost Capacity / m3

Mechanical Tanks, Chutes and Plate work % of Machinery

Piping % of Machinery

Electrical Work $ / mechanical cost equipment

Instrumentation $ / mechanical cost equipment

EPCM % of Total

Indirect Costs % of Total

Contingency 20% to 50%



5.0 PROJECT DIRECT COST

5.1 Quantity Take-Off Development

Engineering will produce the quantity take offs according with the engineering scope requirements shown in the previous section and the definitions indicated on Appendix A “Matrix for quantities determination”

The main aspects to consider are:

• Main Process Equipment List: required, development of a preliminary equipment list by the mechanical engineer and process engineer. This list is based on the assumed process flow sheets and complemented by engineering experience for non-process

• Facilities: required

• Main quantities estimate of civil works, concrete, structural steel: factored (cost or capacity); especially, the cost of the roads will be a factor per kilometer

• Main quantities estimate of architectural: square meters (floor area) of building and square meters of siding

• Main quantities estimate of plant piping: factored

• Main quantities estimate of yard pipe: Based on plot plan, specifications and sizes defined by the engineer. On this basis a take off will be performed using the preliminary plant layout to estimate pipe length. Fittings and valves are covered by allowances

• Electrical Equipment and Services: Factored for major electrical project equipment and power distribution and services. These costs must be estimated as a percentage of process equipment cost. Especially, the cost of the transmission and distribution lines will be a factor per kilometer.

• Instrumentation: Factored.

5.2 Pricing

5.2.1 General

Main equipment of the project will be priced according to definition indicated in Appendix B “Matrix for prices determination”. The estimate details will be marked with a code to identify the source of pricing as follows:

E: Estimate

B: Benchmark

F: Budgetary (budgetary quotation)


This classification will be the base to develop the contingency assessment to obtain the factor of estimate contingency.

5.2.2 Price Reference Level and Exchange Rate

The cost estimate will be based on fourth quarter 2010US Dollars. Price level escalation will not be included.

The currency exchange rate will be defined in accordance with Client policy. There could be one or more exchange rate depending on the countries of origin.

Table 5.2.2 Exchange rates according to US Dollar at October 2010

Currency Eq. per USD

Canadian Dollar 1.0190EURO 0.7204Australian Dollar 1.0200Chilean Pesos 484.04

5.2.3 Equipment and Bulk Materials

Equipment:

In this scoping study, the equipment cost for main and secondary (mechanical and electrical equipment) shall be estimated using current similar data, budgetary prices or benchmarking. Equipment cost must be considered Ex-Works. Freight and insurances must be evaluated separately.

Bulk Materials:

The bulk material prices shall be estimated using current similar data or will be covered by factors.

5.3 Unit Man Hours and Construction Labor

This estimate will use the concept of all in labor rates and unit man-hours per defined activity (line item), or by benchmarking by process area from similar projects.

Unit Man Hours:

Unit man hours obtained from experience in similar local

projects. Labor Productivity:

Based on the current experience in construction projects in Chile, average labor productivity is compared to US Gulf Cost rates. This productivity factor will also include calculations to address the follow influential factors:


• Weather Conditions.

• Schedule Overlap shifts.

• Availability and turnover of skilled workforce.

• Altitude.

• Access to work Area.

All in rate:

This rate covers all the labor direct and indirect cost. The rates are determined by crew. These crews conform to the normal crew make up for this type of project. The all in rates include the following items:

• Base labor rate, payroll burdens and benefits, completion bonus, incentives, overtime premiums and transportation.

• Contractor mobilization and demobilization

• Small tools and consumables including welding rods, sealants, adhesives and lubricants

• Safety clothing and safety supplies

• Contractor supervision from general foreman and above

• Travel to and from project site

• Travel within the site

• Contractor’s receiving and warehousing

• Contractor’s temporary facilities

• Contractor’s head office overhead and insurance

• Contractor’s mark-up and profit

• Contractor’s bonding and financial guarantees

• Construction equipment, including operators, fuel, insurances, transportation to the site, lube oil and maintenance

• Camp and catering


5.4 Construction Indirect Cost

It will be included in all in rate labor cost.

5.5 Allowances

A design allowance is subjective based on the degree of engineering completed at the time of engineering design cuts-off and a comparison of quantities to historical experience.

The matrix for quantities determination covers all the factors used per each discipline, any other allowances needed will be applied.

6.0 PROJECT INDIRECT COST

The indirect costs will be estimated as a percentage of the total direct cost of the project. This factor considers the following:

• Project size

• Execution approach

• Level of the engineering

• Scope

This factor is determined based on mining projects executed in the area and is in the range of what is normally accepted in the industry. The scope of indirect cost is as follows:

6.1 EPCM Services

EPCM services include labor, burden, expenses and EPCM contractor fee, home office EPCM, field office EPCM, module yards EPCM, third party consultants, standards compliance, other project offices, systems software integration, power engineers, studies and will be a % of direct cost.

6.2 Temporary facilities

Considers construction of camps; site offices; security; sanitation; warehouse; QA/QC laboratory; communication, services and IT; temporary & minor construction facilities; lay down and work areas; roads; fencing & parking areas; power, water, air and sewage utilities; weather protection.

6.3 Construction Services

This includes camp management & catering, security, water, fuel, power, waste & environmental management, aircraft catering & operations, medical & safety supplies, training, general & final cleanup, general material handling & warehouse, construction site, operation contractor, mobilization & demobilization, support equipment, stevedoring, site transportation & light vehicles, professional services, site office costs including communications, material management and fire protection.


6.4 Freight

Freight considers inland freight to port, ocean freight, port fees, and local inland freight to the plant. Insurances are also included. The factor considers the ratio between local and imported material and equipment will be allowed in accordance with the particular site location and remotes access (Roads & port).

6.5 Construction Testing & Commissioning

Vendor representatives, pre-operational testing and commissioning support.

6.6 Spare Parts

Initial capital spares, commissioning spares, operating & first purchases.

6.7 First Fill

It includes all reagents, oil, etc. necessary to operate the plant during pre-commissioning, commissioning and ramp-up process.

6.8 Taxes and Duties

Will be considered as a percentage of foreign equipment

6.9 Owner's Cost

Will be addressed in conjunction with Barrick’s Project team.

7.0 CONTINGENCY

A contingency will be applied to the estimate. The Contingency will be reviewed with Barrick to ensure that it is appropriate for the level of engineering detail.

8.0 CAPITAL COST ESTIMATE REPORT

8.1 Capex

The capital cost estimate will be developed in a specialized software or spreadsheet, but capable to be exported to Excel.

The base report will be detailed by area, then by discipline. The summary reports will be by discipline and by area.

As an example Appendix C shows the detail capex template.


9.0 EXCLUSIONS

9.1 Areas excluded from the Capex

Mine (Owner)

Main Access

Port Facilities

Note: Areas indicated (Owner) will be included under cost provided by owner.

9.2 Evaluation Cost excluded from the Capex

Escalation

Taxes

Royalties & Licenses

Financial cost

Investigation of land properties, water resources and surfaces right

Exchange currency Fluctuation

Force Majeur

Environmental Studies & remediation cost

Sunk Cost.

APPENDIX A Matrix for Quantities Determination

APPENDIX B Matrix for Prices Determination

APPENDIX C AMEC Cost Estimate Template

APPENDIX A MATRIX FOR QUANTITIES DETERMINATION

Area Subarea Resp. Disc Qty F (%) / S (Q) Base Comments100 General

311 Area 311 Coarse Ore Crushing

3111 Prim ary Crus herEarthwork Eng. CSA Factor Project AConcrete Eng. CSA Factor Project AStructural Steel Eng. CSA Factor Project AArchitectural n/aMechanical Equipm ent Eng. MEC Defined Equipm ent lis tPiping EST 3% Over MecanicaElectrical EST 5% Over Mecanica Exclude equipm entIns trum entation EST 2% Over Mecanica

3121 Overland ConveyorEarthwork Eng. CSA S MTOConcrete Eng. CSA S MTOStructural Steel n/a Include on conveyorArchitectural n/aMechanical Equipm ent Eng. MEC Defined Equipm ent lis tPiping EST 1% Over MecanicaElectrical EST 5% Over MecanicaIns trum entation EST 2% Over Mecanica

3131 Coars e Ore StockpileEarthwork Eng. CSA Factor Project A / Project B SketchConcrete Eng. CSA Factor Project A / Project B SketchStructural Steel Eng. CSA Factor Project A / Project B SketchArchitectural Eng. CSA Factor Project A / Project B SketchMechanical Equipm ent Eng. MEC Defined Equipm ent lis tPiping EST 3% Over MecanicaElectrical EST 5% Over MecanicaIns trum entation EST 2% Over Mecanica

411 SAG Grinding

4111 SAG MillsEarthwork Eng. CSA Factor Project CConcrete Eng. CSA Factor Project CStructural Steel Eng. CSA Factor Project CArchitectural Eng. CSA Factor Project CMechanical Equipm ent Eng. MEC Defined Equipm ent lis tPiping EST 7% Over MecanicaElectrical EST 5% Over MecanicaIns trum entation EST 3% Over Mecanica

4112 Pebbles Crus hingEarthwork Eng. CSA Factor Project CConcrete Eng. CSA Factor Project CStructural Steel Eng. CSA Factor Project CArchitectural Eng. CSA Factor Project CMechanical Equipm ent Eng. MEC Defined Equipm ent lis tPiping EST 3% Over MecanicaElectrical EST 5% Over MecanicaIns trum entation EST 3% Over Mecanica


Area Subarea Resp. Disc Qty F (%) / S (Q) Base Comments315 Secondary Crus hing & HPGR

TRADE OFF3151 Secondary Crus hing3151 Dry Screening3151 High Pres s ure Grinding Rolls3151 Wet Screening

4113 Ball Grinding

4113 Ball MillsEarthwork Eng. CSA Factor Project CConcrete Eng. CSA Factor Project CStructural Steel Eng. CSA Factor Project CArchitectural Eng. CSA Factor Project CMechanical Equipm ent Eng. MEC Defined Equipm ent lis tPiping EST 7% Over MecanicaElectrical EST 5% Over MecanicaIns trum entation EST 3% Over Mecanica

4113 Ball Feeding Sys tem

4123 Collective Flotation

4123 Rougher y Scavenger FlotationEarthwork Eng. CSA Factor Project C / Project DConcrete Eng. CSA Factor Project C / Project DStructural Steel Eng. CSA Factor Project C / Project DArchitectural n/aMechanical Equipm ent Eng. MEC Defined Equipm ent lis tPiping EST 15% Over MecanicaElectrical EST 10% Over MecanicaIns trum entation EST 5% Over Mecanica

4124 RegrindingEarthwork Eng. CSA Factor Project C / Project DConcrete Eng. CSA Factor Project C / Project DStructural Steel Eng. CSA Factor Project C / Project DArchitectural n/aMechanical Equipm ent Eng. MEC Defined Equipm ent lis tPiping EST 5% Over MecanicaElectrical EST 5% Over MecanicaIns trum entation EST 3% Over Mecanica

4125 Cleaning Flotation (1° y 2°)Earthwork Eng. CSA Factor Project C / Project DConcrete Eng. CSA Factor Project C / Project DStructural Steel Eng. CSA Factor Project C / Project DArchitectural n/aMechanical Equipm ent Eng. MEC Defined Equipm ent lis tPiping EST 15% Over MecanicaElectrical EST 10% Over MecanicaIns trum entation EST 3% Over Mecanica

4129 Selective Flotation (Moly Plant)4129 Cu-Mo Concentrate Thickening4129 Mo Flotation

4171 Lime & Reagents PlantsEarthwork Eng. CSA Factor Project C / Project DConcrete Eng. CSA Factor Project C / Project DStructural Steel Eng. CSA Factor Project C / Project DArchitectural n/aMechanical Equipm ent Eng. MEC Factor Project C / Project DPiping EST 15% Over MecanicaElectrical EST 10% Over MecanicaIns trum entation EST 5% Over Mecanica


Area Subarea Resp. Disc Qty F (%) / S (Q) Base Comments

4171 Lim e Plant

4171 Reagent Plant

4173 Cu Concentrate Handling

4173 Cu Concentrate thickeningEarthwork Eng. CSA Factor Project C / Project FConcrete Eng. CSA Factor Project C / Project FStructural Steel n/a Project DArchitectural n/a Project DMechanical Equipm ent Eng. MEC Defined Equipm ent lis tPiping EST 10% Over MecanicaElectrical EST 10% Over MecanicaIns trum entation EST 5% Over Mecanica

4173 Cu Concentrate FiltrationEarthwork Eng. CSA Factor Project EConcrete Eng. CSA Factor Project EStructural Steel Eng. CSA Factor Project EArchitectural Eng. CSA Factor Project EMechanical Equipm ent Eng. MEC Defined Equipm ent lis tPiping EST 5% Over MecanicaElectrical EST 10% Over MecanicaIns trum entation EST 5% Over Mecanica

4173 Cu Packing & Dis patchEarthwork Eng. CSA Factor Project GConcrete Eng. CSA Factor Project GStructural Steel Eng. CSA Factor Project GArchitectural Eng. CSA Factor Project GMechanical Equipm ent Eng. MEC Defined Equipm ent lis tPiping EST Over MecanicaElectrical EST Over MecanicaIns trum entation EST Over Mecanica

Copper Filter Plant POX

TRADE OFF

Earthwork Eng. CSA Factor TBDConcrete Eng. CSA Factor TBDStructural Steel Eng. CSA Factor TBDArchitectural Eng. CSA Factor TBDMechanical Equipm ent Eng. MEC Defined Equipm ent lis tPiping EST 5% Over MecanicaElectrical EST 10% Over MecanicaIns trum entation EST 5% Over Mecanica

4173 Mo Concentrate HandlingEarthwork Eng. CSA Factor Project C / Project DConcrete Eng. CSA Factor Project C / Project DStructural Steel Eng. CSA Factor Project C / Project DArchitectural Eng. CSA Factor Project C / Project DMechanical Equipm ent Eng. MEC Defined Equipm ent lis tPiping EST Over MecanicaElectrical EST Over MecanicaIns trum entation EST Over Mecanica

4173 Mo Concentrate Thickening

4173 Mo Concentrate Filtration

4173 Mo Packing & Dis patch


Area Subarea Resp. Disc Qty F (%) / S (Q) Base Comments51 Tailings

4128 Conventional Tailing Thickeners

4128 Pas te Tailing ThickenersEarthwork Eng. tbd Project FConcrete Eng. tbd Project FStructural Steel Eng. tbd Project FArchitectural n/aMechanical Equipm ent Eng. MEC Defined Equipm ent lis tPiping Eng. PIP Defined Main linesElectrical EST 15% Over MecanicaIns trum entation EST 5% Over Mecanica

4127 Tailing PipelineEarthwork Eng. CSA S MTOConcrete n/aStructural Steel n/aArchitectural n/aMechanical Equipm ent Eng. MEC Defined Equipm ent lis tPiping Eng. PIP Defined Main linesElectrical EST 10% Over MecanicaIns trum entation EST 5% Over Mecanica

5111 Tailing DamEarthwork Eng. E&E S MTOConcrete n/aStructural Steel n/aArchitectural n/aMechanical Equipm ent Eng. E&E Defined Equipm ent lis tPiping Eng. E&E Defined Main linesElectrical EST 5% Over MecanicaIns trum entation EST 5% Over Mecanica

414 POX Plant

4143 POX PlantEarthwork Eng. CSA S MTOConcrete Eng. AMEC/MINPROC tbd Input from POX Es pecialis tStructural Steel Eng. AMEC/MINPROC tbd Input from POX Es pecialis tArchitectural Eng. AMEC/MINPROC tbd Input from POX Es pecialis tMechanical Equipm ent Eng. AMEC/MINPROC tbd Input from POX Es pecialis tPiping Eng. AMEC/MINPROC tbd Input from POX Es pecialis tElectrical Eng. AMEC/MINPROC tbd Input from POX Es pecialis tIns trum entation Eng. AMEC/MINPROC tbd Input from POX Es pecialis t

4143 POX Res idue Filtration Idem Area 540Earthwork Eng. CSA Factor TBDConcrete Eng. CSA Factor TBDStructural Steel Eng. CSA Factor TBDArchitectural Eng. CSA Factor TBDMechanical Equipm ent Eng. MEC Defined Equipm ent lis tPiping EST 5% Over MecanicaElectrical EST 10% Over MecanicaIns trum entation EST 5% Over MecanicaOxigen Plant By others Pack age Opex

4143 CIL PlantEarthwork Eng. CSA S MTOConcrete Eng. CSA S MTOStructural Steel Eng. CSA S MTOArchitectural Eng. CSA S MTOMechanical Equipm ent Eng. MEC Defined Equipm ent lis tPiping EST Over MecanicaElectrical EST Over MecanicaIns trum entation EST Over MecanicaLim e Plant Package


Area Subarea Resp. Disc Qty F (%) / S (Q) Base Comments

4143 ADR PlantEarthwork Eng. CSA Factor Project HConcrete Eng. CSA Factor Project HStructural Steel Eng. CSA Factor Project HArchitectural Eng. CSA Factor Project HMechanical Equipm ent Eng. MEC Defined Equipm ent lis tPiping EST Over MecanicaElectrical EST Over MecanicaIns trum entation EST Over Mecanica

4144 Oxygen Plant

4149 Steam Hous e

61 Infrastructure

616 Water s upply

6161 From NegrillarEarthwork Eng. CSA S MTO Pond or tankConcrete n/aStructural Steel n/aArchitectural n/aMechanical Equipm ent Eng. MEC Defined Equipm ent lis tPiping Eng. EST Defined Main lineElectrical EST Over MecanicaIns trum entation EST Over Mecanica

6161 From SeaEarthwork Eng. CSA S MTO Pond or tankConcrete n/aStructural Steel n/aArchitectural Eng. CSA S MTOMechanical Equipm ent Eng. MEC Defined Equipm ent lis tPiping Eng. EST Defined Main lineElectrical EST Over MecanicaIns trum entation EST Over Mecanica

6161 Water Ponds

616 Power s upply6193 Main s ubs tation Eng. ELE S MTO6192 Power lines Eng. ELE S MTO6114 External Plan Lighting

613 Ancillary FacilitiesPerm anent Cam p Eng. CSA S MTO m 2Kitchen & Lunch RoomChange hous e Eng. CSA S MTO m 2Offices Eng. CSA S MTO m 2Mechanical Shop Eng. CSA S MTO m 2Electrical ShopWarehous e Eng. CSA S MTO m 2Lab. Expans ion Eng. CSA S MTO m 2Plant Lighting EST Factor

940 Proces s Control & Com m unications

612 Roads6121 Internal Plant Roads Eng. CSA Include on platform des .6122 Rain Drainage Sys tem Eng. CSA Include on platform des .

91 INDIRECT COSTEST Factor


APPENDIX B MATRIX FOR PRICES DETERMINATION

AREA NOTAS FUENTE DE INFORMACIÓN Quotation Resp

1 a) Chancador Primario Diseño 150 Ktpd Cerro Casale yes Mec

b) Correa Overland Diseño 150 Ktpd Base de Datos no Est

2 a) Molienda SAG Fase 1: 2x40x22 Cotización presupuestaria paramolinos y motores

yes MecFase 2: 2x40x22 yes Ele

b) Chancadores de Pebbles Fase 1: 3xMP1000 Base de Datos no EstFase 1: 3xMP1000

c) Correas Similar a Andacollo Escalar no Est

3 a) HPGR Confirmar con Polysius Cerro Casale yes Mec

4 a) Molienda Bolas Fase 1: 2x24x37.5 - Cotización Presupuestaria- Quechua

yes MecFase 1: 2x24x37.5 yes Ele

5 a) Flotación/Molienda Similar a Andacollo Casale no Est

6 a) Planta Moli Similar a Andacollo o Quechua Escalar no Est

7 a) Filtración Similar a Andacollo o Quechua Escalar no Est

b) Filtración con Lavado Similar a 7a) pero con Lavado Escalar no Est

8 a) Acopio Concentrado/Carguío Ferrocarril no Est

9 a) POX Por AMEC Minproc DB

10 a) Filtración Residuos POX Similar a 7b) pero con otros materiales yes Pro

11 a) Planta CIL no Est

12 a) Planta ADR Maricunga / Lobo Marte no Est

13 a) Producción Relaves de Pasta Esperanza / FLSmitdth yes Pro

14 a) Depósito de Relaves Diseño Preliminar por E&E no Est

Oxigen plant yes ProLime plant yes ProDetox plant yes ProRO Plant yes Pro


APPENDIX C AMEC ESTIMATE COST TEMPLATE


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