PURSUANT TO RULE 13a-16 OR 15d-16 OF
THE SECURITIES EXCHANGE ACT OF 1934
SIGNATURES |
IVANHOE MINES LTD. | |||||
Date: October 12, 2005 | By: | /s/ Beverly A. Bartlett | |||
BEVERLY A. BARTLETT | |||||
Corporate Secretary |
Integrated Development Plan Technical Report Oyu Tolgoi, Mongolia |
SECTION 1• Summary | 1-1 | |||
1.1 Overview of IDP | 1-1 | |||
1.2 Economic Benefit to Mongolia | 1-3 | |||
1.3 Financial Summary | 1-4 | |||
1.4 Ore Release Schedules | 1-7 | |||
1.4.1 Phase 1 — Base Case | 1-7 | |||
1.4.2 Phase 2 — Expanded case | 1-8 | |||
1.5 Development, Capital and Production Schedules | 1-9 | |||
1.6 Mineral Resources | 1-11 | |||
SECTION 2• Introduction and Terms of Reference | 2-1 | |||
SECTION 3• Disclaimer | 3-1 | |||
SECTION 4• Property Description and Location | 4-1 | |||
4.1 Mineral Tenure | 4-1 | |||
4.2 Permits and Agreements | 4-3 | |||
SECTION 5• Accessibility, Climate, and Physiography | 5-1 | |||
5.1 Location | 5-1 | |||
5.1.1 Regional Centres and Infrastructure | 5-1 | |||
5.1.2 Transportation Infrastructure | 5-1 | |||
5.2 CLIMATE | 5-2 | |||
5.3 Physiography | 5-5 | |||
5.4 Seismicity | 5-5 | |||
5.4.1 General | 5-5 | |||
5.4.2 Mongolian Seismology Centre | 5-6 | |||
5.4.3 Analysis and Conclusions | 5-6 | |||
SECTION 6• History | 6-1 | |||
SECTION 7• Geological Setting | 7-1 | |||
7.1 Regional Geology | 7-1 | |||
7.2 Property Geological Units | 7-2 | |||
7.2.1 Stratified Rocks | 7-2 | |||
7.2.2 Intrusive Rocks | 7-6 | |||
7.3 Property Structural Geology | 7-7 | |||
7.3.1 Solongo Fault | 7-7 | |||
7.3.2 Northwest Shear Zone | 7-9 | |||
7.3.3 Central Fault | 7-9 | |||
7.3.4 Axial Fault, West Bat, East Bat Faults | 7-9 | |||
7.3.5 Boundary Fault System | 7-10 | |||
7.3.6 Northeast-Striking Secondary Faults | 7-10 | |||
7.3.7 Folds | 7-10 | |||
7.4 Southern Oyu Deposits | 7-11 | |||
7.4.1 Southwest Oyu Deposit | 7-11 | |||
7.4.2 South Oyu Deposit | 7-12 | |||
7.4.3 Wedge Deposit | 7-13 | |||
7.4.4 Central Oyu Deposit | 7-14 | |||
7.5 Hugo Dummett Deposit | 7-15 |
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7.5.1 Hugo South Deposit | 7-15 | |||
7.5.2 Hugo North Deposit | 7-21 | |||
SECTION 8• Deposit Types | 8-1 | |||
SECTION 9• Mineralization | 9-1 | |||
9.1 Southern Oyu Deposits | 9-1 | |||
9.1.1 Southwest Deposit | 9-1 | |||
9.1.2 South Deposit | 9-2 | |||
9.1.3 Wedge Deposit | 9-2 | |||
9.1.4 Central Deposit | 9-3 | |||
9.2 Hugo Dummett Deposits | 9-4 | |||
9.2.1 Hugo South Deposit | 9-4 | |||
9.2.2 Hugo North Deposit | 9-8 | |||
SECTION 10• Exploration | 10-1 | |||
SECTION 11• Drilling | 11-1 | |||
SECTION 12• Sampling Method and Approach | 12-1 | |||
SECTION 13• Sample Preparation, Analyses, and Security | 13-1 | |||
13.1 Sample Preparation and Shipment | 13-1 | |||
13.2 Assay Method | 13-2 | |||
13.3 QA/QC Program | 13-2 | |||
13.3.1 Standards Performance | 13-2 | |||
13.3.2 Blank Sample Performance | 13-3 | |||
13.3.3 Duplicates Performance | 13-3 | |||
13.3.4 Specific Gravity Program | 13-4 | |||
13.4 Concluding Statement | 13-4 | |||
SECTION 14• Data Verification | 14-1 | |||
SECTION 15• Adjacent Properties | 15-1 | |||
SECTION 16• Mineral Processing and Metallurgical Testing | 16-1 | |||
16.1 Background | 16-1 | |||
16.2 Flotation Testwork | 16-1 | |||
16.3 Comminution | 16-3 | |||
SECTION 17• Mineral resource and Mineral Reserve Estimates | 17-1 | |||
17.1 Geologic Models and Estimation Domains | 17-1 | |||
17.2 Grade Interpolation | 17-2 | |||
17.2.1 Validation | 17-3 | |||
17.3 Mineral Resource Classification | 17-3 | |||
17.4 Mineral Resource Summary | 17-4 | |||
SECTION 18• Other Relevant Data and Information | 18-1 | |||
SECTION 19• Requirements for Technical Reports on Production and Development Properties | 19-1 | |||
19.1 Framework for IDP | 19-1 | |||
19.2 Mine Plan | 19-3 | |||
19.3 Scheduling Scenarios | 19-3 | |||
19.3.1 Approach to Scheduling | 19-5 | |||
19.3.2 Base Case Production Schedule | 19-5 | |||
19.3.3 Expanded Case Production Schedule | 19-7 | |||
19.4 Open Pit Mining | 19-9 |
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19.4.1 Pit Optimization | 19-9 | |||
19.4.2 Open Pit Mine Design | 19-10 | |||
19.4.3 Open Pit Mining Operations | 19-11 | |||
19.5 Underground Mine Development | 19-12 | |||
19.5.1 Deposit Assessment | 19-13 | |||
19.5.2 Lift 1 Development Plan | 19-14 | |||
19.5.3 Underground Mining Method | 19-15 | |||
19.5.4 Design and Planning Considerations | 19-16 | |||
19.5.5 Cost and Schedule Issues | 19-16 | |||
19.5.6 Geotechnical | 19-16 | |||
19.5.7 Caving Predictability | 19-17 | |||
19.6 Process Facilities | 19-17 | |||
19.6.1 Process Description | 19-18 | |||
19.7 Concentrate Handling and Shipping | 19-22 | |||
19.7.1 Concentrate Transport to Railhead | 19-22 | |||
19.7.2 Concentrate Transport to Smelters | 19-23 | |||
19.8 Tailings Management | 19-23 | |||
19.8.1 TSF Site | 19-23 | |||
19.8.2 Facility Description | 19-24 | |||
19.8.3 Facility Operation | 19-24 | |||
19.8.4 Facility Closure | 19-25 | |||
19.9 Mine and Process Water Supply | 19-26 | |||
19.9.1 Water Supply and Management | 19-26 | |||
19.9.2 Borefield Water Supply System | 19-26 | |||
19.9.3 Camp and Construction Water Supply | 19-27 | |||
19.9.4 Mine Dewatering | 19-28 | |||
19.10 Electrical Power Requirement and Supply | 19-28 | |||
19.11 Other Infrastructure and Facilities | 19-30 | |||
19.11.1 Plant Site | 19-30 | |||
19.11.2 River Diversion | 19-31 | |||
19.11.3 Roads | 19-31 | |||
19.12 On-Site Support Buildings, Structures and Facilities | 19-32 | |||
19.12.1 Off-Site Facilities | 19-36 | |||
19.12.2 Project Implementation | 19-37 | |||
19.13 Operating Plan | 19-40 | |||
19.13.1 Personnel Organization | 19-40 | |||
19.13.2 Fuel Supply | 19-41 | |||
19.13.3 Power Supply | 19-41 | |||
19.13.4 Operating Consumables | 19-41 | |||
19.13.5 Maintenance Contracts | 19-41 | |||
19.13.6 Analytical Services | 19-41 | |||
19.14 Socio-Political Assessment | 19-42 | |||
19.14.1 Effects on Local Communities | 19-42 | |||
19.14.2 Effects on National Economy | 19-42 | |||
19.15 Safety, Health and Environment | 19-44 | |||
19.16 Environmental Assessment and Management | 19-45 | |||
19.16.1 Existing Environment | 19-46 | |||
19.16.2 Closure and Reclamation | 19-49 | |||
19.17 Marketing | 19-51 | |||
19.18 Project Economics | 19-53 |
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19.18.1 Summary of Results | 19-53 | |||
19.18.2 Basis of Analysis | 19-53 | |||
19.18.3 Special Stability Agreement (SSA) | 19-56 | |||
19.18.4 Capital Cost Estimate | 19-58 | |||
19.18.5 Operating Costs | 19-59 | |||
19.19 Opportunities | 19-61 | |||
19.20 Sensitivity Analysis | 19-62 | |||
SECTION 20• Conclusions and Recommendations | 20-1 | |||
20.1 Geology — QP: Steve Blower | 20-1 | |||
20.2 Open Pit Mining — QP: Bernie Peters, Allan Haines | 20-3 | |||
20.3 Underground Mine Development — QP: Scott McIntosh, Jarek Jakubec | 20-3 | |||
20.4 Metallurgy and Process Facilities — QP: Mike Grundy | 20-5 | |||
20.5 General Components — QP: Duane Gingrich | 20-7 | |||
20.6 Key Development Features | 20-10 | |||
SECTION 21• References | 21-1 | |||
Tables | ||||
Table 1-1: Financial Model — Discount Rates @ 8% and 10%* | 1-4 | |||
Table 1-2: Project Sensitivities — Phase 1 Base Case* | 1-6 | |||
Table 1-3: Project Sensitivities — Phase 2 Expanded Case* | 1-6 | |||
Table 1-4: Mineral Resource Estimate of 3 May 2005 | 1-11 | |||
Table 5-1: Monthly Temperatures (°C) based on Byan Ovoo Data | 5-2 | |||
Table 5-2: Monthly Relative Humidity | 5-2 | |||
Table 5-3: Design Soil Freezing Depths | 5-3 | |||
Table 5-4: Rainfall Summary (mm) | 5-3 | |||
Table 5-5: Rainfall Intensities (mm/h) | 5-4 | |||
Table 5-6: Design Evaporation Data | 5-4 | |||
Table 5-7: Maximum One-Hour Wind Speeds (m/s) at Byan Ovoo | 5-5 | |||
Table 5-8: Frequency of Dust Storms in the Gobi Desert | 5-5 | |||
Table 16-1: Sampling Density for Flotation Testwork | 16-3 | |||
Table 16-2: Anticipated Life-of-Mine Metallurgical Performance — Base Case 85,000 t/d | 16-3 | |||
Table 16-3 Summary of Grinding Simulation Results | 16-5 | |||
Table 17-1: Oyu Tolgoi Project Mineral Resources based on a 0.6% Cu Eq. Cutoff, 3 May 2005 | 17-4 | |||
Table 19-1: Open Pit Resource Inventory by Stage | 19-11 | |||
Table 19-2: Open Pit Mining Equipment Requirements | 19-12 | |||
Table 19-3: Summary of Hugo North Assessment Base Case 85,000 t/d (June 2005) | 19-13 | |||
Table 19-4: Initial Operations Work Force | 19-40 | |||
Table 19-5: Project Impacts (2002 - 2043) — Expanded Case | 19-43 | |||
Table 19-6: NPV ($million) After Tax @ 10% Discount Rate | 19-54 | |||
Table 19-7: NPV ($million) After Tax @ 8% Discount Rate | 19-54 | |||
Table 19-8: Basic Production Data — Life-of-Mine Average/Total | 19-55 | |||
Table 19-9: Smelter Terms | 19-56 | |||
Table 19-10: Summary of Capital Costs over Mine Life ($M) | 19-58 | |||
Table 19-11: Operating Costs | 19-60 | |||
Table 19-12: Sensitivity Analysis | 19-62 |
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Table 20-1: Anticipated Life-of-Mine Metallurgical Performance — Base Case 85,000 t/d | 20-6 | |||
Table 20-2: Summary of Capital Costs over Mine Life ($M) | 20-8 | |||
Table 20-3: Operating Costs | 20-9 | |||
Figures | ||||
Figure 1-1: Phase 1 Base Case — Cash Flow Schedule ($/lb Cu, $/oz Au) | 1-5 | |||
Figure 1-2: Phase 2 Expanded Case — Cash Flow Schedule ($/lb Cu, $/oz Au) | 1-5 | |||
Figure 1-3: Ore Sources and Feed Grades | 1-7 | |||
Figure 1-4: Contained Metal Production, Life-of-Mine | 1-7 | |||
Figure 1-5: Ore Sources and Feed Grades, Life-of-Mine | 1-8 | |||
Figure 1-6: Contained Metal Production, Life-of-Mine | 1-8 | |||
Figure 1-7: Base Case - 85,000 t/d, 1st 20 years | 1-9 | |||
Figure 1-8: Expanded Case - 140,000 t/d, 1st 20 years | 1-10 | |||
Figure 1-9: Profile of Orebodies | 1-11 | |||
Figure 4-1: Oyu Tolgoi Project Location Map | 4-1 | |||
Figure 4-2: Oyu Tolgoi Tenements | 4-2 | |||
Figure 7-1: Location of Oyu Tolgoi, Gurvansayhan Terrane, and Major Cenozoic Faults in Southern Mongolia | 7-1 | |||
Figure 7-2: Stratigraphic Column of Paleozoic Bedrock Units in the Oyu Tolgoi Project Area | 7-3 | |||
Figure 7-3: Simplified Geological Map of Oyu Tolgoi Concession | 7-8 | |||
Figure 7-4: Simplified Interpretation of Section 6200 N, Hugo South Deposit | 7-17 | |||
Figure 7-5: Simplified Interpretation of Section 7100N, Hugo North Deposit | 7-23 | |||
Figure 7-6: Simplified Interpretation of Section 7400N, Hugo North Deposit | 7-24 | |||
Figure 9-1: Sulphide Distribution in the Hugo South Deposit (Section 6200N) | 9-6 | |||
Figure 9-2: Cross-Section 6200N in the Hugo South Deposit | 9-7 | |||
Figure 9-3: Section 4767500N (7500N) in Hugo North Deposit | 9-9 | |||
Figure 13-1: SRM Failure Chart | 13-3 | |||
Figure 16-1: Metallurgical Testwork Programs Related to Resource Growth | 16-2 | |||
Figure 16-2: Throughput Assessment Method | 16-4 | |||
Figure 16-3: Grinding Circuit Configuration for IDP | 16-5 | |||
Figure 19-1: Open Pit and Underground Scheduling Blocks for Expanded Case | 19-4 | |||
Figure 19-2: Ore Processing by Metallurgical Ore Type — Base Case | 19-6 | |||
Figure 19-3: Copper Feed Grades — Base Case | 19-6 | |||
Figure 19-4: Gold Feed Grades — Base Case | 19-7 | |||
Figure 19-5: Ore Processing by Metallurgical Ore Type — Expanded Case | 19-8 | |||
Figure 19-6: Copper Feed Grades — Expanded Case | 19-8 | |||
Figure 19-7: Gold Feed Grades — Expanded Case | 19-9 | |||
Figure 19-8: Block Cave Mining Method | 19-15 | |||
Figure 19-9: Concentrator Facilities | 19-18 | |||
Figure 19-10: Oyu Tolgoi — Simplified Flowsheet | 19-19 | |||
Figure 19-11: Crushed Ore Conveyor and Stockpile | 19-20 | |||
Figure 19-12: Grinding Circuit | 19-20 | |||
Figure 19-13: General Arrangement of TSF | 19-25 | |||
Figure 19-14: Basement Topography Gunii Hooloi North East | 19-27 | |||
Figure 19-15: Electrical Power Load Profile | 19-30 | |||
Figure 19-16: General Site Plan | 19-33 | |||
Figure 19-17: Tianjin to Oyu Tolgoi Road Routes | 19-39 | |||
Figure 19-18: Impact on Government Revenues (Tg 2005 billions) — Expanded Case | 19-44 |
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Figure 19-19: China’s Sources vs. Consumption for Refined Copper until 2010 | 19-52 | |||
Figure 19-20: Phase 1 Base Case — Cumulative Cash Flow ($/lb Cu, $/oz Au) | 19-60 | |||
Figure 19-21: Phase 2 Expanded Case — Cumulative Cash Flow ($/lb Cu, $/oz Au) | 19-61 | |||
Appendices | ||||
Appendix A — List of Drill Holes used for Resource Estimates | ||||
Appendix B — List of Significant Composite Intervals used in Resource Estimates |
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1.1 | Overview of IDP |
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• | the Special Stability Agreement with the Government of Mongolia | ||
• | a reliable electrical power supply | ||
• | VAT and import duty payments on materials and equipment | ||
• | a location on the Chinese mainline rail system for concentrate transfer from trucks loaded at Oyu Tolgoi | ||
• | completion of environmental assessment and the development of an environmental monitoring program. |
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• | 34.3% (average) increase in real GDP | |
• | 10.3% (average) increase in employment | |
• | 11.5% (average) increase in real per capita disposable income | |
• | US$7.9 billion (cumulative) increase in government operating balance, excluding debt payments | |
• | US$54 billion (cumulative) increase in exports. |
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Expanded | ||||||||||||
Parameter | Unit | Base Case | Case | |||||||||
Key Input | ||||||||||||
Copper (Cu) average per year | M lb | 730 | 1,007 | |||||||||
Gold (Au) average per year | 000 oz | 258 | 333 | |||||||||
Mine Life | Years | 40 | 35 | |||||||||
Initial Capital (to achieve 70,000 t/a)a | $ | M | 1,275 | 1,275 | ||||||||
Future & Sustaining Capital | $ | M | 2,673 | 4,156 | ||||||||
Site Operating Costs (average)b | $ | /t | 5.94 | 5.62 | ||||||||
Realization costs (transport to smelter, treatment & refining, royalties) | $ | /t | 6.32 | 6.03 | ||||||||
Financial Projections | ||||||||||||
After—Tax Results: | ||||||||||||
NPV 8% | $ | M | 2,221 | 2,706 | ||||||||
NPV 10% | $ | M | 1,513 | 1,852 | ||||||||
IRR | % | 19.25 | 19.75 | |||||||||
Payback | Years | 5.80 | 6.53 | |||||||||
Total Cash Costs /lb Cu (after Au credits) | $ | 0.39 | 0.40 | |||||||||
* | This assessment includes the use of Inferred resources that are considered too speculative geologically to have economic considerations applied to them that would enable them to be categorized as a Mineral Reserve. Inferred resources will require further exploration before they can be upgraded to the higher Measured and Indicated categories. | |
Although the assumptions underlying the preliminary assessment are considered reasonable, there is no certainty that the predicted results will be realized. | ||
a | excludes realization costs | |
b | excludes escalation and ramp-up capital |
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* | Value used in financial analysis |
* | Value used in financial analysis |
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IRR | NPV8 | NPV10 | ||||||||||||||||||
Change | Change | Change | ||||||||||||||||||
Parameter | Base Value | Change | (%) | ($M) | ($M) | |||||||||||||||
Gold Price | $400/oz | ± $25/oz | 0.4 | 68 | 57 | |||||||||||||||
Copper Price | $1.00/lb | ± $0.05/lb | 1.2 | 271 | 216 | |||||||||||||||
Initial Capital | 1.274 M | ± 10 | % | 1.3 | 116 | 113 | ||||||||||||||
Site Operating & Transport | $6.78/t | ± 10 | % | 0.9 | 183 | 149 | ||||||||||||||
Smelter Charges $ | 75/wmt, $0.075/lb | ± $10/wmt, $0.01/lb | 0.4 | 93 | 74 | |||||||||||||||
Copper Recovery | 90.8% (avg) | ± 1% point | 0.2 | 50 | 40 | |||||||||||||||
Power Cost | $0.0426/kWh | ± 10 | % | 0.2 | 46 | 36 | ||||||||||||||
* | This assessment includes the use of Inferred resources that are considered too speculative geologically to have economic considerations applied to them that would enable them to be categorized as a Mineral Reserve. Inferred resources will require further exploration before they can be upgraded to the higher Measured and Indicated categories. | |
Although the assumptions underlying the preliminary assessment are considered reasonable, there is no certainty that the predicted results will be realized. |
IRR | NPV8 | NPV10 | ||||||||||||||||||||
Change | Change | Change | ||||||||||||||||||||
Parameter | Base Value | Change | (%) | ($M) | ($M) | |||||||||||||||||
Gold Price | $400/oz | ± $25/oz | 0.4 | 81 | 68 | |||||||||||||||||
Copper Price | $1.00/lb | ± $0.05/lb | 1.2 | 346 | 274 | |||||||||||||||||
Initial Capital | 1.274 M | ± 10 | % | 2.1 | 116 | 113 | ||||||||||||||||
Site Operating & Transport | $6.50/t | ± 10 | % | 1.0 | 241 | 195 | ||||||||||||||||
Smelter Charges | $75 /wmt, $0.075/lb | ± $%, $0.01/lb | 0.4 | 120 | 94 | |||||||||||||||||
Copper Recovery | 89.7% (avg) | ± 1% point | 0.2 | 62 | 49 | |||||||||||||||||
Power Cost | $0.0426/kWh | ± 10 | % | 0.2 | 58 | 46 | ||||||||||||||||
* | This assessment includes the use of Inferred resources that are considered too speculative geologically to have economic considerations applied to them that would enable them to be categorized as a Mineral Reserve. Inferred resources will require further exploration before they can be upgraded to the higher Measured and Indicated categories. | |
Although the assumptions underlying the preliminary assessment are considered reasonable, there is no certainty that the predicted results will be realized. |
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0.6% Cu Eq. Cutoff | 0.3% Cu Eq. Cutoff | |||||||||||||||||||||||
Grade | Grade | |||||||||||||||||||||||
Mineral Resource Category | Tonnes | Cu % | Au g/t | Tonnes | Cu % | Au g/t | ||||||||||||||||||
Southern Oyu Deposits | ||||||||||||||||||||||||
Measured | 101,590,000 | 0.64 | 1.10 | 126,560,000 | 0.58 | 0.93 | ||||||||||||||||||
Indicated | 465,640,000 | 0.62 | 0.43 | 790,590,000 | 0.49 | 0.27 | ||||||||||||||||||
Measured + Indicated | 567,230,000 | 0.62 | 0.55 | 917,150,000 | 0.50 | 0.36 | ||||||||||||||||||
Inferred | 88,500,000 | 0.47 | 0.41 | 78,240,000 | 0.37 | 0.18 | ||||||||||||||||||
Hugo Dummett Deposit | ||||||||||||||||||||||||
Hugo North | — | — | — | |||||||||||||||||||||
Indicated | 581,930,000 | 1.89 | 0.41 | — | — | — | ||||||||||||||||||
Inferred | 581,290,000 | 1.08 | 0.32 | — | — | — | ||||||||||||||||||
Hugo South* | — | — | — | |||||||||||||||||||||
Indicated | — | — | — | — | — | — | ||||||||||||||||||
Inferred | 490,330,000 | 1.05 | 0.09 | — | — | — | ||||||||||||||||||
Total Project | ||||||||||||||||||||||||
Measured+Indicated | 1,149,160,000 | 1.30 | 0.47 | — | — | — | ||||||||||||||||||
Inferred | 1,160,120,000 | 1.02 | 0.23 | — | — | — | ||||||||||||||||||
* | Resource estimate of June 2004 |
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• | Steven Blower, P. Geo., an employee of AMEC, was responsible for preparation of all sections on geology. | ||
• | Mike Grundy, B. Eng. (Chemical Engineering), Aus.I.M.M., an employee of AMEC, was responsible for preparation of the sections on Metallurgy and Process Plant design. | ||
• | Bernard Peters, B. Eng. (Mining), Aus.I.M.M. 201743, an employee of GRD Minproc Limited, was responsible for preparation of the section on Open Pit Mining. | ||
• | Allan Haines, C. Eng, an employee of Steffen Robertson Kirsten (Australasia) Pty Ltd., was responsible for preparation of the subsection on Open Pit Mine Geotechnical. | ||
• | Scott McIntosh, PE, an employee of McIntosh Engineering Incorporated, was responsible for preparation of Section 19.5 (except those portions attributed to SRK Consulting (Canada), plus the specific reference to the underground operating costs contained in Tables 19-10 and 19-11. | ||
• | Jarek Jakubec, C. Eng., an employee of SRK Consulting Inc., was responsible for preparation of the subsection on Underground Mine Geotechnical. |
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• | Property ownership & tenure | ||
• | Exploration drilling | ||
• | Electrical power cost estimate | ||
• | Mineral resource model | ||
• | Government & public relations | ||
• | Financial modelling and analysis |
• | Mineral resource estimate |
• | Coordinate IDP preparation | ||
• | Metallurgy & plant design | ||
• | On-site, off-site infrastructure design | ||
• | Capital & operating costs for process plant, on-site & off-site infrastructure |
• | Open pit mine design | ||
• | Capital & operating costs for open pit mines |
• | Geotechnical engineering for open pits |
• | Geotechnical engineering associated with underground mines |
• | Design of block-cave underground mines | ||
• | Capital & operating costs for underground mines |
• | Flotation, gravity-recoverable gold, comminution & leaching testwork | ||
• | SAG mill pilot plant |
• | Comminution & flotation testwork | ||
• | Modelling / interpretation |
• | Flotation & comminution testwork |
• | Access road & tailings storage design | ||
• | Site-wide water balance |
• | Hydrogeology & raw water borefield design |
• | 2002 environmental baseline study | ||
• | Environmental Impact Assessment |
• | Coordinate environmental, archaeological, & socioeconomic assessments | ||
• | Training systems assessment |
• | Power supply study |
• | Coal-fired power plant evaluation |
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• | Years 1 — 3 | $5.00 /ha | ||
• | Years 4 — 5 | $7.50 /ha | ||
• | Year 6 on | $10.00 /ha |
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||||||||||||||||||||||||||||||||||||
Minimum | -34.2 | -33.3 | -24.9 | -21.7 | -12.7 | 0.4 | 4.1 | 2.6 | -4.6 | -20.0 | -26.5 | -33.4 | ||||||||||||||||||||||||||||||||||||
Average | -12.5 | -8.0 | -0.4 | 9.3 | 17.9 | 23.4 | 25.4 | 22.7 | 16.5 | 7.2 | -2.9 | -10.3 | ||||||||||||||||||||||||||||||||||||
Maximum | 9.0 | 16.2 | 24.0 | 31.0 | 38.4 | 49.9 | 40.2 | 39.0 | 39.0 | 29.8 | 25.3 | 14.0 | ||||||||||||||||||||||||||||||||||||
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||||||||||||||||||||||||||||||||||||
Minimum | 19.0 | 12.5 | 3.0 | 2.0 | 1.0 | 1.5 | 4.5 | 8.0 | 1.0 | 2.0 | 5.5 | 10.5 | ||||||||||||||||||||||||||||||||||||
Average | 53.3 | 38.3 | 23.5 | 24.3 | 18.7 | 31.3 | 37.4 | 36.4 | 34.4 | 30.4 | 40.7 | 43.5 | ||||||||||||||||||||||||||||||||||||
Maximum | 81.5 | 67.0 | 88.0 | 89.5 | 100.0 | 96.5 | 100.0 | 100.0 | 100.0 | 81.0 | 85.0 | 80.5 | ||||||||||||||||||||||||||||||||||||
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Soil Type | Freezing depth (m) | |||
Clayey soil | 1.5 | |||
Sandy soil | 1.9 | |||
Gravely soil | 2.2 | |||
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total | ||||||||||||||||||||||||||||||||||||||||
Maximum daily | 2.1 | 3.8 | 4.4 | 10.4 | 19.0 | 16.2 | 29.5 | 102.0 | 19.2 | 4.0 | 4.3 | 1.5 | — | |||||||||||||||||||||||||||||||||||||||
Average monthly | 0.4 | 0.4 | 0.8 | 1.4 | 3.1 | 8.1 | 18.1 | 17.8 | 5.0 | 0.9 | 0.6 | 0.2 | 56.8 | |||||||||||||||||||||||||||||||||||||||
Average rain-days per month | 0.6 | 0.6 | 1.0 | 0.8 | 1.5 | 3.0 | 4.5 | 3.9 | 1.4 | 0.6 | 0.7 | 0.4 | 19.0 | |||||||||||||||||||||||||||||||||||||||
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Return Interval | 1 in 2 | 1 in 10 | 1 in 20 | 1 in 50 | 1 in 100 | 1 in 500 | ||||||||||||||||||
Duration | Years | Years | Years | Years | Years | Years | ||||||||||||||||||
10 minutes | 15.4 | 44.2 | 63.5 | 99.8 | 138.3 | 284.2 | ||||||||||||||||||
30 minutes | 10.0 | 28.7 | 41.3 | 64.8 | 89.9 | 187.7 | ||||||||||||||||||
60 minutes | 6.8 | 19.5 | 28.0 | 44.0 | 60.9 | 125.2 | ||||||||||||||||||
2 hours | 4.3 | 12.3 | 17.7 | 27.8 | 38.6 | 79.3 | ||||||||||||||||||
3 hours | 3.2 | 9.2 | 13.3 | 20.9 | 28.9 | 59.4 | ||||||||||||||||||
6 hours | 1.9 | 5.5 | 7.9 | 12.4 | 17.2 | 35.4 | ||||||||||||||||||
12 hours | 1.1 | 3.2 | 4.6 | 7.3 | 10.1 | 20.7 | ||||||||||||||||||
24 hours | 0.7 | 1.9 | 2.7 | 4.2 | 5.9 | 12.0 | ||||||||||||||||||
48 hours | 0.4 | 1.1 | 1.5 | 2.3 | 3.2 | 6.3 | ||||||||||||||||||
72 hours | 0.3 | 0.8 | 1.0 | 1.6 | 2.2 | 4.2 | ||||||||||||||||||
Evaporation | ||||||||||||
Sublimation | Winter | Summer | ||||||||||
(waterbodies frozen in winter) | (open waterbodies) | |||||||||||
Month | (mm) | (mm) | ||||||||||
January | 22 | 82 | — | |||||||||
February | 41 | 101 | — | |||||||||
March | — | — | 142 | |||||||||
April | — | — | 256 | |||||||||
May | — | — | 439 | |||||||||
June | — | — | 378 | |||||||||
July | — | — | 382 | |||||||||
August | — | — | 285 | |||||||||
September | — | — | 192 | |||||||||
October | — | — | 132 | |||||||||
November | 53 | 11 | — | |||||||||
December | 27 | 88 | — | |||||||||
Total Water Loss: Sublimation + Evaporation = 2,349 mm | ||||||||||||
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||||||||||||||||||||||||||||||||||||
Maximum wind speed | 13.4 | 14.0 | 15.4 | 18.1 | 16.6 | 16.2 | 16.3 | 14.8 | 16.0 | 18.6 | 19.3 | 14.5 | ||||||||||||||||||||||||||||||||||||
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |||||||||||||||||||||||||||||||||||||
No. of days | 0.7 | 1.0 | 2.4 | 4.7 | 4.1 | 1.5 | 1.0 | 0.4 | 0.6 | 0.7 | 1.9 | 0.7 | ||||||||||||||||||||||||||||||||||||
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• | For plant site structures, the maximum acceleration associated with an earthquake with a return period of 475 years (10% chance of exceedance in 50 years) is 0.06g. This makes it a UBC Zone 1, which is recommended for design. For the Russian building code SNIP II-7-821, a seismic intensity rating of VI (6) would be used for the design of “common” facilities and of VII (7) for “critical” facilities at Oyu Tolgoi. | ||
• | The foundation factor is defined by the soil profile. The site will mainly have foundation on rock or on dense or very stiff soil less than 15 m in depth. There are no areas of deeper loose or soft soils or soils that may liquefy. | ||
• | For design of the tailings storage facility: |
– | The operating basis earthquake (OBE) was selected as the earthquake with a 475-year return period. Assuming a design life of 30 years for the tailings facility, the probability of exceedance is 6%. The maximum acceleration for the 475-year-return-period earthquake is 0.06g. A conservative design magnitude of M7.5 has been selected for the OBE. | ||
– | Considering the consequences of failure (safety of life, economics, social and environmental impacts), the hazard classification of the tailings facility is high. | ||
– | The maximum design earthquake (MDE) with a maximum bedrock acceleration of 0.08g (1,000-year-return-period event) and design magnitude of M7.8 has been adopted. |
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Note: | Shows distribution of stratigraphic and intrusive units and major structural features of the western two-thirds of the concession |
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• | Post-mineral carboniferous strata flanking the deposits are folded but show consistent easterly to northeasterly dip directions, subparallel to those in the underlying Devonian strata. This implies that despite the time gap between the sequences, there is little angular discordance at the unconformity, and therefore the porphyry deposits formed within gently-dipping Devonian strata. | ||
• | The distribution of alteration, copper and gold grades, and sulphides in the Hugo Dummett deposit are most consistent with a source below and to the west of the deposit axis. | ||
• | In the Central and Southwest deposits, mineralized veins and high-grade core zones are more vertical than their present orientations if the enclosing Devonian strata are considered to have been subhorizontal during deposit formation. |
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• | Chlorite-illitealteration occurs in the uppermost part of the dacite tuff. This alteration is not texturally destructive, and primary volcanic textures are clearly visible. No mineralization is associated with this weak outermost alteration zone. | ||
• | Advanced argillicalteration is dominant in the dacite tuff and is characterized by the minerals quartz, pyrophyllite, kaolinite, topaz, diaspore, zunyite, alunite, and dickite. Because the advanced argillic alteration is widespread and consists of a complex mineral assemblage, it is divided into subzones: |
– | Pyrophyllite-kaolinite: This is the most widespread subgroup of the advanced argillic alteration. It occurs dominantly in the dacite tuff, but also in the upper parts of the basalt and quartz monzodiorite. Late white to pink dickite on fractures is ubiquitous. | ||
– | Quartz-alunite: The quartz-alunite zone typically occurs in the dacite tuff in bedding-parallel lenses. The lenses are parallel to, and occur just above and east of, the high-grade, vein-rich deposit core. It is whitish-pink to brown in colour. | ||
– | Topaz alteration occurs as an intense, completely texturally destructive zone and is typically of limited extent. Topaz-altered zones are vuggy and whitish-brown in colour. They are most common in the dacite tuff, but occur locally in the basalt. |
• | Pyrophyllite-kaolinite-dickite-muscovite/illite(intermediate argillic) alteration occurs in the upper parts of the basalt at the contact with the dacite tuff and is the dominant alteration type in the high-grade deposit core. It is brownish-yellow in colour but turns pinkish where pyrophyllite is the dominant mineral. It is not texturally destructive. Hematite is common as fine specularite. | ||
• | Chlorite-muscovite/illite-hematitealteration is the dominant alteration in the basalt. It is characterized by its green colour, and the original texture of the basalt is still visible (e.g., relict pseudo-hexagonal augite crystals). Locally, particularly at depth, biotite occurs in the zone. Relict magnetite occurs either disseminated or in veins. |
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Note: | Shows bornite+chalcocite core zone, grading outward through bornite, chalcopyrite+bornite, chalcopyrite, and pyrite zones |
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• | Muscovite/illitealteration occurs mainly in quartz monzodiorite intrusions. It is pale green to gray in colour and in most cases texturally destructive, although in places original feldspar crystals can still be observed. Locally, topaz occurs with muscovite, and a subgroup of muscovite-topaz alteration was recognized. |
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• | Chlorite-illitemarks the outer boundary of the advanced argillic zone. It occurs mainly in the coarse, upper part of the dacite tuff. |
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• | Quartz-pyrophyllite-kaolinite-dickite(advanced argillic) is hosted mainly in the lower part of the dacite tuff, although on some sections at Hugo North it extends into strongly veined quartz monzodiorite. The advanced argillic zone is typically buff or grey, and late dickite on fractures is ubiquitous. Within the advanced argillic zone, a massive quartz-alunite zone forms a pink-brown bedding-parallel lens. | ||
• | Topazis widespread as late alteration controlled by structures cutting both the advanced and intermediate argillic zone. As illustrated by the type section, topaz appears to replace parts of the quartz-alunite zone. In addition topaz may also occur disseminated with quartz-pyrophyllite-kaolinite. Strong topaz zones are mottled buff or light brown and sometimes vuggy. | ||
• | Hematite-siderite-illite-pyrophyllite-kaolinite-dickite(intermediate argillic) is an inward zonation from the advanced argillic zone, and is commonly hosted by augite basalt but may also occur in dacite ash flow tuff. Hematite usually comprises fine specularite and may be derived from early magnetite or Fe-rich minerals such as biotite or chlorite. | ||
• | Hematite-chlorite-illite-(biotite-magnetite)(chlorite) is transitional to the intermediate argillic zone and is commonly hosted by augite basalt. It is characterized by a green colour, and relict hydrothermal magnetite, either disseminated or in veins. | ||
• | Muscovite-illite (sericite) generally occurs in the quartz monzodiorite intrusions and is a feature of the strongly mineralized zone. Alteration decreases with depth in the quartz monzodiorite. |
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Total Diamond Core Drilling | 546,000 | |||
Hugo Dummett Deposit | 249,000 | |||
Central & Bridge | 95,000 | |||
Southwest | 139,000 | |||
South & Wedge | 62,000 | |||
Other | 22,000 | |||
Entrée — Ivanhoe JV | 9,000 |
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• | The entire sample is crushed to 90% minus 3 mm. | ||
• | A 1 kg subsample is riffle split from the crushed minus 3 mm sample and pulverized to 90% minus 75 µm (200 mesh). | ||
• | A 150 g subsample is split off by taking multiple scoops from the pulverized 75 µm sample. | ||
• | The 150 g subsample is placed in a kraft envelope, sealed with a folded wire or glued top, and prepared for shipping. |
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• | automatic batch failure if the SRM result is greater than the round-robin limit of three standard deviations | ||
• | automatic batch failure if two consecutive SRM results are greater than two standard deviations on the same side of the mean. | ||
• | automatic batch failure if the field blank result is over 0.06 g/t Au or 0.06% Cu. |
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• | primary grind of approximately 80% passing 150 µm | ||
• | rougher flotation using Cytec 3418A, a selective diakyl dithiophosphinate collector | ||
• | regrinding to 80% passing 25 µm | ||
• | two or three stages of cleaner flotation. |
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Zone | Ore Represented (Mt) | No. of Variability Samples | ||||||
Southwest | 231 | 152 | ||||||
Central | 30 | 30 | ||||||
Hugo North | 140 | 35 | ||||||
Hugo South | 4 | 20 | ||||||
Zone/ | Grade | Distribution | ||||||||||||||||||
Material Type | Mt | Cu % | Au g/t | Cu % | Au % | |||||||||||||||
Southwest | ||||||||||||||||||||
Ore to plant | 123.192 | 0.53 | 0.69 | 100.0 | 100.0 | |||||||||||||||
Concentrate | 2.319 | 24.70 | 25.40 | 88.0 | 68.9 | |||||||||||||||
Tailings | 120.873 | 0.06 | 0.22 | 12.0 | 31.1 | |||||||||||||||
Hugo North Lift 1 | ||||||||||||||||||||
Ore to plant | 576.494 | 1.46 | 0.29 | 100.0 | 100.0 | |||||||||||||||
Concentrate | 25.550 | 30.00 | 5.10 | 91.9 | 79.1 | |||||||||||||||
Tailings | 550.944 | 0.14 | 0.07 | 8.1 | 20.9 | |||||||||||||||
Hugo North Lift 2 | ||||||||||||||||||||
Ore to Plant | 578.574 | 1.03 | 0.31 | 100.0 | 100.0 | |||||||||||||||
Concentrate | 19.270 | 28.10 | 7.40 | 90.0 | 79.0 | |||||||||||||||
Tailings | 559.304 | 0.10 | 0.07 | 10.0 | 21.0 | |||||||||||||||
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Parameter | Southwest | Hugo North | ||||||
SAG Mill Feed F80 (mm) | 52 | 40 | ||||||
Transfer Size T80 (mm) | 4.4 | 4.4 | ||||||
Circuit Product Size P80 (µm) | 164 | 195 | ||||||
SAG Mill Capacity (t/h) | 3,519 | 4,128 | ||||||
Ball Mill Capacity (t/h) | 4,186 | 4,259 | ||||||
Total Circuit Capacity (t/h) * | 3,490 | 4,044 | ||||||
Pebble Circulating Load (%) | 27 | 18 | ||||||
* | Throughput rates are raw numbers discounted 10% for operational contingency and potential sample set bias |
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Grades | Contained Metal | |||||||||||||||||||||||
Cu | Au | Cu Eq. | Cu | Au | ||||||||||||||||||||
Mineral Resource Category | Tonnes | % | g/t | % | 000 lb | oz | ||||||||||||||||||
Southern Oyu Deposits | ||||||||||||||||||||||||
Measured | 101,590,000 | 0.64 | 1.10 | 1.34 | 1,440,000 | 3,580,000 | ||||||||||||||||||
Indicated | 465,640,000 | 0.62 | 0.43 | 0.89 | 6,360,000 | 6,400,000 | ||||||||||||||||||
Measured+Indicated | 567,230,000 | 0.62 | 0.55 | 0.97 | 7,810,000 | 9,980,000 | ||||||||||||||||||
Inferred | 88,500,000 | 0.47 | 0.41 | 0.73 | 920,000 | 1,170,000 | ||||||||||||||||||
Hugo Dummett Deposits* | ||||||||||||||||||||||||
Indicated | 581,930,000 | 1.89 | 0.41 | 2.15 | 24,250,000 | 7,600,000 | ||||||||||||||||||
Inferred | 1,071,620,000 | 1.07 | 0.21 | 1.20 | 25,220,000 | 7,310,000 | ||||||||||||||||||
Total Oyu Tolgoi Project | ||||||||||||||||||||||||
Measured | 101,590,000 | 0.64 | 1.10 | 1.34 | 1,440,000 | 3,580,000 | ||||||||||||||||||
Indicated | 1,047,570,000 | 1.33 | 0.42 | 1.59 | 30,610,000 | 14,070,000 | ||||||||||||||||||
Measured+Indicated | 1,149,160,000 | 1.30 | 0.47 | 1.54 | 32,850,000 | 17,340,000 | ||||||||||||||||||
Inferred | 1,160,120,000 | 1.02 | 0.23 | 1.16 | 26,200,000 | 8,400,000 | ||||||||||||||||||
* | Hugo South values based on June 2004 Juras report |
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• | the Special Stability Agreement with the Government of Mongolia | ||
• | a reliable electrical power supply | ||
• | VAT and import duty payments on materials and equipment | ||
• | a location on the Chinese mainline rail system for concentrate transfer from trucks loaded at Oyu Tolgoi | ||
• | Mongolian and Chinese government agreement to continuously open the border crossing at Gushaan Sukhait / Ganqimaodao. |
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• | Open Pit | Southwest (stages 1 & 2) | ||||
• | Underground | Hugo North Lift 1 | ||||
• | Open Pit | Southwest (stages 3 & 4) | ||||
• | Underground | Hugo North Lift 2 | ||||
• | Underground | Hugo South | ||||
• | Open Pit | Southwest & Central (stages 5 to 9) |
• | Phase 1 base case, 70,000 to 85,000 t/d. Plant feed is from two Southwest open pit stages and two Hugo North block caves. | ||
• | Phase 2 expanded case, nominal 140,000 t/d. Plant is essentially doubled in size and feed is from the first four open pit stages, two Hugo North block caves, and one Hugo South block cave. |
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Ore Type | Deposit | |
1 | Southwest | |
2 | Central — chalcocite | |
3 | Central — covellite | |
4 | Central — chalcopyrite | |
5 | Hugo South | |
6 | Hugo North |
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• | Timing of the mining stages and block caves is determined by the plant throughput rate for each blended ore type. Plant capacity ramps up over the first 18 months after commissioning. | ||
• | Underground production is considered the priority mill feed because of its higher NSR values. Open pit production is scheduled around the underground mining requirements. | ||
• | The underground production schedule incorporates development requirements and initiation of the block caves. | ||
• | Open pit mining rates are based on the number of shovels available and required throughput of mid-value NSR cutoff ore. Mining inventories are reported by bench within the selected pit shells. | ||
• | In Phase 2, production from different pit stages is balanced to obtain an operationally practical mining schedule with smooth waste and ore production rates throughout the mine life. The mining rate is balanced by using low-grade stockpiles where necessary. | ||
• | Material from the low-grade stockpiles supplements underground ore after exhaustion of the open pits. |
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• | recovery to concentrate | ||
• | smelter deductions | ||
• | concentrate transport | ||
• | smelter treatment and refining charges | ||
• | impurities | ||
• | royalties. |
• | Average cutback width | 150 m | ||||
• | Minimum mining width | 40 to 50 m | ||||
• | Bench height | 15 m | ||||
• | Bench stack height limit | |||||
— Weathered rock | 60 m | |||||
— Unweathered rock | 90 m | |||||
• | Berm width | 7.0 to 11.5 m | ||||
• | Bench face angle (assuming drained slopes): | |||||
— Weathered rock | 65° | |||||
— Unweathered rock | 75° | |||||
• | Wall slopes (LOSA) | 40° to 50° | ||||
• | Horizontal drainage (behind pit wall) | 100 to 200 m |
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Stage | Total Movement kt | Waste kt | Ore kt | NSR $/t | Cu % | Au g/t | As g/t | Ag g/t | F ppm | |||||||||||||||||||||||||||
1 | 125,635 | 74,742 | 50,892 | 15.39 | 0.58 | 0.89 | 9.97 | 1.42 | 2,124.28 | |||||||||||||||||||||||||||
2 | 197,635 | 125,312 | 72,323 | 11.11 | 0.49 | 0.56 | 12.41 | 1.31 | 1,981.79 | |||||||||||||||||||||||||||
3 | 259,784 | 176,222 | 83,562 | 9.91 | 0.45 | 0.49 | 19.00 | 1.35 | 1,615.07 | |||||||||||||||||||||||||||
4 | 83,196 | 44,009 | 39,187 | 9.21 | 0.61 | 0.19 | 76.49 | 1.88 | 1,898.57 | |||||||||||||||||||||||||||
5 | 35,163 | 20,505 | 14,658 | 7.43 | 0.40 | 0.32 | 20.25 | 1.05 | 1,374.76 | |||||||||||||||||||||||||||
6 | 33,042 | 19,526 | 13,516 | 10.56 | 1.01 | 0.12 | 252.42 | 1.46 | 2,189.26 | |||||||||||||||||||||||||||
7 | 312,355 | 171,644 | 140,711 | 8.42 | 0.65 | 0.16 | 168.42 | 1.38 | 1,914.54 | |||||||||||||||||||||||||||
8 | 315,765 | 169,459 | 146,306 | 8.18 | 0.40 | 0.40 | 21.46 | 1.19 | 1,596.48 | |||||||||||||||||||||||||||
9 | 1,302,292 | 984,298 | 317,995 | 8.12 | 0.48 | 0.29 | 86.61 | 1.13 | 1,743.69 | |||||||||||||||||||||||||||
Total | 2,664,866 | 1,785,717 | 879,150 | 9.09 | 0.51 | 0.36 | 72.89 | 1.27 | 1,783.53 | |||||||||||||||||||||||||||
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Equipment | Start-up | Peak | ||||||
Hydraulic Shovels | 2 | 3 | ||||||
Mining Trucks | 13 | 23 | ||||||
Rotary Drill | 2 | 3 | ||||||
Hydraulic Excavator (Phase 2 only) | — | 1 | ||||||
Wheel Dozers | 1 | 1 | ||||||
Track Dozers | 3 | 4 | ||||||
Graders | 2 | 2 | ||||||
Loaders | 1 | 1 | ||||||
Water Carts | 2 | 2 | ||||||
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Mined Resource | ||||||||
— Hugo North Lift 1 | ||||||||
Tonnes (including development) | 576.5 M | |||||||
NSR ($/t) | 24.89 | |||||||
Cu Grade (%) | 1.463 | |||||||
Au Grade (g/t) | 0.286 | |||||||
— Hugo North Lift 2 | ||||||||
Tonnes (including development) | 578.6 M | |||||||
NSR ($/t) | 17.81 | |||||||
Cu Grade (%) | 1.035 | |||||||
Au Grade (g/t) | 0.312 | |||||||
Production Schedule | ||||||||
Hugo North Lift 1 Start | 2010 | |||||||
Lift 1 Life (years) | 25 years | |||||||
Hugo North Lift 2 Start | 2028 | |||||||
Lift 2 Life (years) | 24 years | |||||||
Peak Ore Production Start | 2015 | |||||||
Peak Ore Production End | 2050 | |||||||
Mine Ore Production End | 2051 | |||||||
Total Mine Life (years) | 43 years | |||||||
• | The mineralized rock mass of the Hugo North orebody is cavable at a hydraulic radius of 20 to 27 m. This is the equivalent of a footprint of approximately 80 m x 80 m to 110 m x 110 m. The current footprint of the caving envelope for both lifts greatly exceeds this hydraulic radius. |
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• | The rock mass is characterized as an “average” cavable rock mass (not Palabora and not Cassiar) ...the Hugo North rock mass is less competent than Northparkes or Ridgeway, which caved at a smaller hydraulic radius. | ||
• | It is estimated that shear zones and faults will further improve the cavability by at least 5% to 10%. |
• | constructing and commissioning: |
— | Shaft 2 (one friction-type service hoist and one friction-type production hoist) | ||
— | Shaft 3 (two production hoists) | ||
— | Shaft 4 (one production hoist) |
• | annually constructing 60, then 96, and eventually 120 drawpoints on Lift 1. |
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• | hoisting plants | ||
• | underground primary mine development and equipment, including ventilation and haulage drifting, crushing, conveying, bins, skip loading, shops, warehouses, explosives magazines, shaft bottom access, and mid-shaft roping arrangements | ||
• | undercutting, panel drifting, drawpoint construction, and ore production loading operations | ||
• | mine operations. |
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• | potential inrush and/or mudrush | ||
• | dust control | ||
• | mine pumping | ||
• | water treatment | ||
• | process water quality and quantity | ||
• | corrosion | ||
• | shaft maintenance | ||
• | hoist rope life. |
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• | The supernatant pond can be as small as practicable to reduce water losses due to evaporation and seepage. | ||
• | It allows operating flexibility to mitigate dust generation on the tailings surface. | ||
• | It allows full drying of the tailings adjacent to the embankments to prevent liquefaction and facilitate lift construction. | ||
• | It reduces the extent of saturated beach area and consequently will reduce the potential for seepage. |
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• | Gunii Hooloi | ||
• | Galbyn Gobi | ||
• | Nariin Zag. |
1 October 2005 |
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• | obtaining power from the Mongolian Central Electricity System (CES) located approximately 560 km to the north of Oyu Tolgoi | ||
• | obtaining power from the Inner Mongolian (China) grid approximately 100 km to the south at its closest point | ||
• | generating power at or near Oyu Tolgoi fuelled by local coal resources. |
• | Considering the current load resource balance, the condition of existing generation equipment, and the significant load of the region, CES will require additional generation capacity in the future. | ||
• | The cost of construction for a dual-circuit 220 kV transmission line from the CES to the project site is in the range of $150 million to $200 million. There is no apparent, readily available funding available to the CES for this construction. There is a substantial risk that the line will not be operational in time to meet the needs of the Oyu Tolgoi project. | ||
• | Substantial and reliable power appears to be readily available from Inner Mongolia (China) and can be obtained in a timely manner. | ||
• | The construction of coal-fired power plants in the vicinity of Oyu Tolgoi is both technically and economically feasible. |
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• | dormitories | ||
• | kitchen and associated food storage and preparation facilities | ||
• | local style and Western style mess | ||
• | wet mess | ||
• | laundry and associated room-cleaning facilities | ||
• | village administration and recreation facilities | ||
• | shop, including post office and public phones | ||
• | first aid facility | ||
• | occupational health testing facility. |
1 October 2005 |
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Integrated Development Plan Technical Report Oyu Tolgoi, Mongolia |
• | 35 kV for the plant site power distribution system and the primary feeders to the converter transformers for the gearless mill drives | ||
• | 3.3 kV for large motors above 200 kW rating | ||
• | 10.5 kV and 3.3 kV for the underground mining power distribution systems | ||
• | 690 V for process equipment rated less than 200 kW | ||
• | 380/220 V, three phase and single phase, for lighting and small power loads. |
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• | process plant (four 1.5 MW diesel generators for a total of 6 MW capacity) | ||
• | tailings pumphouse (one 1.5 MW diesel generator) | ||
• | truckshop facilities and boiler house (one 750 kW diesel generator) | ||
• | accommodation village (four 750 kW diesel generators for a total of 3 MW capacity) | ||
• | airstrip (one 150 kW diesel generator). |
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• | concentrate marketing and sales | ||
• | concentrate transport logistics | ||
• | procurement and logistics. |
• | government relations | ||
• | legal support | ||
• | travel coordination | ||
• | human resources | ||
• | translation. |
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• | provincial government relations | ||
• | recruiting | ||
• | workforce training and education. |
• | No new technology is proposed for the process plant. | ||
• | Project management and engineering firms exist that are experienced with the proposed technology, but no local contractor has experience with a development of this size or complexity in Mongolia. | ||
• | Certain governmental and commercial negotiations are outstanding. | ||
• | Regulations, permitting, and taxation issues in Mongolia may be subject to ongoing negotiation and adjustment. | ||
• | Benefits arising from the project are to be maximized in favour of Mongolia and the Mongolian people. | ||
• | The Mongolian construction labour force is of modest size and has not participated in a mining development of this size or complexity. | ||
• | The site is located near China, which has a large, skilled workforce and an industrial manufacturing sector experienced in major modern mining developments. | ||
• | Mongolia is landlocked without direct access to tide water. China has well-developed infrastructure from the coast to within 80 km of the site. | ||
• | Advancement of the underground development will enhance project economics. | ||
• | Long-lead procurement items associated with the process plant will need to be ordered early to satisfy the construction schedule. | ||
• | EPCM contractors and suppliers for the metals mining industry are currently in high demand. |
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• | PMO Services (international firm) | ||
• | Basic Engineering — process and on-site infrastructure, including procurement of off-shore open pit equipment (international firm) | ||
• | Detailed Engineering — process and on-site infrastructure (CDI in China) | ||
• | Basic Engineering — utilities and off-site infrastructure (international / China) | ||
• | Detailed Engineering — utilities and off-site infrastructure done as E, EP, or EPC (CDI or Mongolian firm) |
• | Procurement of key process equipment will be carried out by the PMO. With the buoyant mining industry, some delivery times of 75 or 80 weeks have been quoted. Purchase orders for this equipment will therefore require early attention. | ||
• | Construction contracts will be a combination of unit price/lump sum and direct hire. The heavy industrial work will be tendered to major Chinese firms and components of infrastructure to Mongolian contractors; the site services activities will be performed by direct-hire Mongolian labour. | ||
• | Chinese and Mongolian contractors with larger workforces will be required to provide their own camps, while all other site workers will be housed in an Owner-provided camp. | ||
• | Logistics and transportation studies have concluded that equipment and supplies procured from off shore will be received at the Chinese port of Tianjin. These goods and Chinese-manufactured materials will be sent to a consolidation yard, then be transshipped to site by road or rail. | ||
• | Off-shore shipments will be transported under bond, and all receiving, consolidation, and custom-clearance activities will be conducted by a freight-forwarding contractor. | ||
• | The preferred road route from Tianjin to site is by way of the Inner Mongolian town of Ganqimaodao at the China-Mongolia border. | ||
• | Currently, this border crossing is open only intermittently. The IDP assumes that the border will be opened full time in the near future. |
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• | Importation of equipment and materialsis currently subject to Mongolian duties and taxes. It is anticipated that the Special Stability Agreement being negotiated with the Mongolian government will reduce many of these obligations. Certain activities in China may also result in tax or duty exposure. Certain duties and taxes can be avoided or mitigated by structuring appropriate corporate and contracting relationships. The cost of duties and tax is excluded in the capital cost estimate. |
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Number of | Total | |||||||
Year | Expatriates | Employees | ||||||
1 | 78 | 880 | ||||||
4 | 43 | 1,095 | ||||||
8 | 12 | 1,185 | ||||||
12 | 7 | 1,187 | ||||||
• | Most employees will work 12-hour shifts | ||
• | Senior managers will work 5 days, then be returned to Ulaanbaatar | ||
• | Expatriates will work 6 weeks, then be returned to their country of hire for 2 weeks | ||
• | Mongolian nationals will work 14 days followed by 7 days at home. |
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• | provision of direct employment at the mine | ||
• | improved opportunities for employment in secondary sectors | ||
• | higher fiscal revenue | ||
• | infrastructure development | ||
• | work-related training | ||
• | a better quality of life overall. |
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Average | Cumulative | |||||||
Economic Factor | % Increase | Increase | ||||||
Real GDP | 34.3 | — | ||||||
Consumer expenditures | 9.3 | — | ||||||
Exports | 71.6 | — | ||||||
Imports | 44.2 | — | ||||||
Net exports (US$1995 billions) | — | 11.2 | ||||||
Employment | 10.3 | — | ||||||
Labour force participation rate (avg) | 5.8 | — | ||||||
Real per capita disposable income | 11.5 | — | ||||||
Government operating balance excluding debt payments (US$2005 billions) | — | 7.85 | ||||||
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• | provides a framework for continually improving overall health and safety performance | ||
• | is appropriate for IMMI operations | ||
• | integrates with other systems and core functions | ||
• | assists IMMI in managing its legal obligations | ||
• | meets the requirements of the Ivanhoe Mines Health and Safety Policy | ||
• | outlines the requirements of the site-specific Health & Safety Management Program. |
• | commitment and policy | ||
• | planning | ||
• | implementation | ||
• | measurement and evaluation | ||
• | review and improvement. |
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• | access road and powerline corridor from site to the Mongolia-China border at Gashaan Sukhait (access road corridor) | ||
• | groundwater resource use from the Gunii Hooloi and Galbyn Gobi regional aquifers (aquifer locations and water supply corridor) | ||
• | Oyu Tolgoi project mine licence area. |
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• | protect public health and safety during all stages of project development | ||
• | prevent or mitigate environmental degradation caused by mining-related activities | ||
• | return the maximum amount of disturbed land to pre-mining conditions suitable for nomadic herdsmen and their grazing animals | ||
• | secure the open pit areas, subsidence zones, waste dumps, and tailings storage facilities to ensure public and environmental safety | ||
• | plan and implement reclamation techniques that eliminate the need for long-term maintenance presence on site and permit IMMI to “walk away” from the reclaimed mine with no environmental or social encumbrances. |
• | surface water and groundwater quality | ||
• | physical stability of tailings deposits | ||
• | physical stability of the river water diversion dike, waste rock dumps, drainage ditches, and concrete shaft/raise caps | ||
• | isolation of open pit voids and unfilled subsidence zones, including status of open water and erosion controls | ||
• | success of indigenous revegetation, including remediation as required until proven to be self-sustaining |
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• | condition of groundwater monitoring wells, piezometers, survey monuments, and other instrumentation | ||
• | effectiveness of dust-control measures on waste rock, TSF, and other waste areas with specific attention to potential wind-blown contaminant sources. |
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Cu Price | Gold Price ($/oz) | |||||||||||||||||||
($/lb) | 350 | 375 | 400 | 425 | 450 | |||||||||||||||
Phase 1 Base Case | ||||||||||||||||||||
0.80 | 536 | 592 | 649 | 706 | 763 | |||||||||||||||
0.90 | 966 | 1,024 | 1,081 | 1,138 | 1,196 | |||||||||||||||
1.00 | 1,399 | 1,456 | 1,513 | 1,571 | 1,628 | |||||||||||||||
1.10 | 1,831 | 1,888 | 1,945 | 2,003 | 2,060 | |||||||||||||||
1.20 | 2,263 | 2,320 | 2,378 | 2,435 | 2,492 | |||||||||||||||
Phase 2 Expanded Case | ||||||||||||||||||||
0.80 | 622 | 689 | 756 | 823 | 892 | |||||||||||||||
0.90 | 1,166 | 1,234 | 1,303 | 1,371 | 1,440 | |||||||||||||||
1.00 | 1,715 | 1,784 | 1,852 | 1,920 | 1,988 | |||||||||||||||
1.10 | 2,260 | 2,328 | 2,396 | 2,464 | 2,532 | |||||||||||||||
1.20 | 2,803 | 2,871 | 2,939 | 3,008 | 3,076 | |||||||||||||||
Cu Price | Gold Price ($/oz) | |||||||||||||||||||
($/lb) | 350 | 375 | 400 | 425 | 450 | |||||||||||||||
Phase 1 Base Case | ||||||||||||||||||||
0.80 | 1,003 | 1,069 | 1,136 | 1,204 | 1,272 | |||||||||||||||
0.90 | 1,543 | 1,611 | 1,678 | 1,746 | 1,814 | |||||||||||||||
1.00 | 2,085 | 2,153 | 2,221 | 2,288 | 2,356 | |||||||||||||||
1.10 | 2,627 | 2,695 | 2,763 | 2,830 | 2,898 | |||||||||||||||
1.20 | 3,169 | 3,237 | 3,305 | 3,372 | 3,440 | |||||||||||||||
Phase 2 Expanded Case | ||||||||||||||||||||
0.80 | 1,162 | 1,242 | 1,322 | 1,403 | 1,484 | |||||||||||||||
0.90 | 1,849 | 1,931 | 2,013 | 2,094 | 2,176 | |||||||||||||||
1.00 | 2,543 | 2,625 | 2,706 | 2,787 | 2,869 | |||||||||||||||
1.10 | 3,230 | 3,312 | 3,393 | 3,474 | 3,556 | |||||||||||||||
1.20 | 3,917 | 3,998 | 4,080 | 4,161 | 4,242 |
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Base | Expanded | |||||||||||
Unit | Case | Case | ||||||||||
Ore Milled | ||||||||||||
— Rate | Mt/a | 30 | 44.1 | |||||||||
— Total | Mt | 1.207 | 1.553 | |||||||||
Grade | ||||||||||||
— Copper | % | 1.20 | 1.14 | |||||||||
— Gold | g/t | 0.34 | 0.30 | |||||||||
Project Life | years | 40 | 35 | |||||||||
Strip Ratio | — | 1.62 | 1.71 | |||||||||
Concentrate | ||||||||||||
Production | Mt/a (dry) | 1.0 | 1.4 | |||||||||
Grade | ||||||||||||
— Copper | % | 31.9 | 31.7 | |||||||||
— Gold | g/t | 7.74 | 7.21 | |||||||||
Metal Produced | ||||||||||||
Cu in Concentrate | Mt | 13.2 | 16.0 | |||||||||
Au in Concentrate | M oz | 10.3 | 11.7 | |||||||||
Ag in Concentrate | M oz | 68.8 | 82.0 | |||||||||
Total Cash Costs for Cu* | ||||||||||||
— after gold credits | $/lb Cu | 0.39 | 0.40 | |||||||||
— before gold credits | $/lb Cu | 0.53 | 0.53 | |||||||||
Treatment & Refining | ||||||||||||
Charges for Payable Cu | $/lb Cu | 0.21 | 0.21 | |||||||||
* | includes treatment & refining, realization & transport costs |
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Description | Unit | Value | ||||||
Payable | ||||||||
Copper payment | % | 96.5 | ||||||
Minimum deduction | % Cu | 1 | ||||||
Gold payment: | ||||||||
1 to 3 g/t | % | 90 | ||||||
3 to 5 g/t | % | 92 | ||||||
5 to 10 g/t | % | 95 | ||||||
10 to 15 g/t | % | 96 | ||||||
15 to 20 g/t | % | 97 | ||||||
20 g/t + | % | 98 | ||||||
Minimum payment level for Au | g/t | 1.00 | ||||||
Silver payment: | ||||||||
Full silver content | % | 90 | ||||||
Minimum payment level for Ag | g/t | 30.00 | ||||||
Treatment Charge | ||||||||
Rate of charge | $/wmt | 75.00 | ||||||
Smelter price participation | % | 10 | ||||||
Base price for participation | $/lb Cu | 0.90 | ||||||
Refining Charges | ||||||||
Base copper refinery charge | $/lb | 0.075 | ||||||
Rate for recovered gold | $/oz Au | 6.00 | ||||||
Rate for recovered silver | $/oz Ag | 0.45 | ||||||
Penalties | ||||||||
Arsenic: | ||||||||
Penalty threshold | % | 0.3 | ||||||
Penalty per 0.1% | $/dmt | 2.00 | ||||||
Rejection level | % | 0.5 | ||||||
Fluorine: | ||||||||
Penalty threshold | ppm | 300 | ||||||
Penalty per 100 ppm | $/dmt | 2.00 | ||||||
Rejection level | ppm | 1,000 | ||||||
Concentrate Transport | ||||||||
Rail/Truck Transport Years 1 to 3 | $/wmt | 38.17 | ||||||
Rail Transport after Year 3: | ||||||||
First 500 kt | $/wmt | 20.15 | ||||||
500 kt to 1.5 Mt | $/wmt | 21.48 | ||||||
Above 1.5 Mt | $/wmt | 37.93 | ||||||
• | General Law of Taxation of Mongolia | ||
• | Foreign Investment Law of Mongolia |
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• | Minerals Law of Mongolia | ||
• | Business Entity and Organization Income Tax Law of Mongolia |
• | From the commencement of production, the investor shall be exempted from the corporate income tax for five years and will have a 50% exemption for the following 5 years. |
• | If the investor reinvests to its entity from its applicable income, its taxable income shall be subject to a deduction equivalent to the amount of such reinvestment. |
• | Tax losses can be carried forward for a three-year period. |
• | Customs duty and VAT are exempt for a specific list of construction items. |
• | Sales Royalty is calculated at 2.5% of net sales. | ||
• | Immovable Property Tax is calculated at 0.6% of the written-down value of immovable property each year. Immovable property was assumed to comprise the capital expenditure category that depreciates over 40 years. |
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• | Calculation of Corporate Tax was based on current legislation applicable to the metallurgy industry, which provides for a tax holiday for the first five years of operations, following by a further five years at half the corporate tax rate. The first year was taken to be 2009, the first full year of production. Beyond Year 10, corporate tax will be paid at the full rate of 30% of taxable income. |
Phase 1 | Phase 2 | |||||||
Item | Base Case | Expanded case | ||||||
Initial Capital (prior to first mill feed) | ||||||||
Open pit | 75.1 | — | ||||||
Process plant | 230.1 | — | ||||||
Tailings storage facility | 31.4 | — | ||||||
On-site infrastructure | 114.8 | — | ||||||
Off-site infrastructure | 98.8 | — | ||||||
Indirects | 195.8 | — | ||||||
Owner’s cost (incl. pre-strip) | 175.2 | — | ||||||
Contingency | 120.2 | — | ||||||
Escalation | 55.2 | — | ||||||
Underground mine | 232.2 | — | ||||||
Subtotal | 1,328.8 | 1,328.8 | ||||||
Ramp-up | 51.1 | 51.1 | ||||||
Future Capital | ||||||||
Open pit | — | — | ||||||
Process plant | 38.4 | 228.9 | ||||||
Tailings storage facility | — | 21.0 | ||||||
On-site infrastructure | 38.3 | 71.0 | ||||||
Off-site infrastructure | — | 59.9 | ||||||
Indirects | 28.3 | 171.0 | ||||||
Underground mine | 728.7 | 1,211.9 | ||||||
Subtotal | 833.7 | 1,763.7 | ||||||
Sustaining Capital | ||||||||
Open pit | 35.8 | 74.5 | ||||||
Process plant | 79.8 | 132.8 | ||||||
Tailings storage facility | 158.4 | 269.9 | ||||||
On-site infrastructure | 38.3 | 40.1 | ||||||
Off-site infrastructure | — | — | ||||||
Indirects | — | — | ||||||
Underground mine | 1,519.5 | 1,865.8 | ||||||
Closure | — | 50.0 | ||||||
Subtotal | 1,831.8 | 2,432.9 | ||||||
Total incl. Initial Capital | 4,059.5 | 5,576.5 | ||||||
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Area | Phase 1 | Phase 2 | |||||||
Unit Costs ($/t) | |||||||||
Mining — $/t ore mined | |||||||||
Open Pit Mining | 2.11 | 2.39 | |||||||
Strip Ratio | 1.62 | 1.71 | |||||||
UG Mining — Hugo North | 2.17 | 2.16 | |||||||
On-Site Costs | |||||||||
Mining — average all sources | 2.16 | 2.28 | |||||||
Process | 2.61 | 2.53 | |||||||
G&A | 1.09 | 0.78 | |||||||
Customs Duties | 0.05 | 0.01 | |||||||
Immovable Property Tax | 0.03 | 0.02 | |||||||
Total Unit On-Site Costs | 5.94 | 5.62 | |||||||
Total Operating Costs ($M) | |||||||||
Total Site Operating Costs | 7,182 | 8,725 | |||||||
Mongolian Government Royalty | 662 | 791 | |||||||
Concentrate Transport Costs | 1,006 | 1,375 | |||||||
Treat./Ref. Charges/Penalties | 5,963 | 7,200 | |||||||
Total Operating Costs | 14,813 | 18,091 | |||||||
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IRR | NPV8 | NPV10 | ||||||||||||||
Change | Change | Change | ||||||||||||||
Parameter | Base Value | Change | (%) | ($M) | ($M) | |||||||||||
Base Case | ||||||||||||||||
Gold Price | $400/oz | ± $25/oz | 0.4 | 68 | 57 | |||||||||||
Copper Price | $1.00/lb | ± $0.05/lb | 1.2 | 271 | 216 | |||||||||||
Initial Capital | 1.274 M | ± 10% | 1.3 | 116 | 113 | |||||||||||
Site Operating & Transport | $6.78/t | ± 10% | 0.9 | 183 | 149 | |||||||||||
Smelter Charges | $75/wmt, $0.075/lb | ± $10/wmt, $0.01/lb | 0.4 | 93 | 74 | |||||||||||
Copper Recovery | 90.8% (avg) | ± 1% point | 0.2 | 50 | 40 | |||||||||||
Power Cost | $0.0426/kWh | ± 10% | 0.2 | 46 | 36 | |||||||||||
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IRR | NPV8 | NPV10 | ||||||||||||||
Change | Change | Change | ||||||||||||||
Parameter | Base Value | Change | (%) | ($M) | ($M) | |||||||||||
Expanded Case | ||||||||||||||||
Gold Price | $400/oz | ± $25/oz | 0.4 | 81 | 68 | |||||||||||
Copper Price | $1.00/lb | ± $0.05/lb | 1.2 | 346 | 274 | |||||||||||
Initial Capital | 1.274 M | ± 10% | 2.1 | 116 | 113 | |||||||||||
Site Operating & Transport | $6.50/t | ± 10% | 1.0 | 241 | 195 | |||||||||||
Smelter Charges | $75 /wmt, $0.075/lb | ± $%, $0.01/lb | 0.4 | 120 | 94 | |||||||||||
Copper Recovery | 89.7% (avg) | ± 1% point | 0.2 | 62 | 49 | |||||||||||
Power Cost | $0.0426/kWh | ± 10% | 0.2 | 58 | 46 | |||||||||||
* | This assessment includes the use of Inferred resources that are considered too speculative geologically to have economic considerations applied to them that would enable them to be categorized as a Mineral Reserve. Inferred resources will require further exploration before they can be upgraded to the higher Measured and Indicated categories. | |
Although the assumptions underlying the preliminary assessment are considered reasonable, there is no certainty that the predicted results will be realized. |
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• | The Southwest deposit consists primarily of pyrite-chalcopyrite mineralization related to biotite-magnetite alteration, overprinted by chlorite-sericite alteration. Mineralization is characterized by high gold contents with Au:Cu ratios (ppm:%) of about 1:1 in the main part of the deposit, rising to 3:1 in the core of the system and at depth. Gold in the Southwest Oyu deposit is closely associated with chalcopyrite and occurs intergrown with chalcopyrite, as inclusions and fracture infills within pyrite, or on grain boundaries of pyrite. The deposit is essentially hosted in augite basalts. | ||
• | South deposit mineralization is hosted in quartz monzodiorite in the southwest and basalt throughout the central portion of the deposits. Chalcopyrite is the principal copper sulphide, but in higher-grade areas bornite locally exceeds chalcopyrite. Alteration in basaltic rocks consists of chlorite, biotite, hematite / magnetite, and weak sericite. Quartz monzodiorite contains advance argillic alteration. Small zones with elevated gold values occur locally. | ||
• | Mineralization in the Central deposit is characterized by an upward-flaring high-sulphidation zone that overprints and overlies porphyry-style chalcopyrite-gold mineralization. A secondary enriched supergene chalcocite blanket tens of metres in thickness overlies the high-sulphidation covellite-pyrite zone. The high-sulphidation portion of the Central Oyu deposit contains a mineral assemblage of pyrite, covellite, chalcocite/digenite, enargite, tennantite, cubanite, chalcopyrite, and molybdenite. Dominant host rocks are dacite tuff and quartz monzodiorite. Higher-grade mineralization is associated with disseminated and coarse-grained fracture-filling sulphides in zones of intensely contorted quartz stockwork veins and anastamosing zones of hydrothermal breccias. Chalcopyrite-gold mineralization is dominant on the south and western margins of Central within either basalt or quartz monzodiorite adjacent to intrusive contacts with basalt. The high-sulphidation part of the Central deposit lacks significant gold. Alteration in the Central deposit shows a close spatial relationship to mineralization and original host lithology. Biotite-chlorite and intermediate argillic alteration coincide with chalcopyrite-gold mineralization within basalt. Advanced argillic and sericite alteration coincide with the high-sulphidation mineralization within quartz monzodiorite and ignimbrite. | ||
• | The Wedge deposit contains a zone of high sulphidation mineralization hosted principally in dacite tuff, grading downward and southward into chalcopyrite mineralization in basalt and quartz monzodiorite host rocks. High-sulphidation mineralization consists of pyrite, chalcopyrite, bornite, enargite, covellite, and primary chalcocite in advanced argillically altered host rocks. The high-sulphidation mineralization grades downward into chalcopyrite, with lesser bornite within basalt host rocks, and pyrite + chalcopyrite mineralization in quartz monzodiorite. Gold is absent, except locally in drill holes adjacent to the South Fault. |
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Integrated Development Plan Technical Report Oyu Tolgoi, Mongolia |
• | The highest-grade copper mineralization in the Hugo Dummett deposit is related to a zone of intense stockwork to sheeted quartz veins. The high-grade zone is centred on thin, east-dipping quartz monzodiorite intrusions or within the upper part of the large quartz monzodiorite body and extends into the adjacent basalt. In addition, moderate- to high-grade copper and gold values occur within quartz monzodiorite below and to the west of the intense vein zone, in the Hugo North gold zone. This zone is distinct in its high gold (ppm) to Cu (%) ratios (0.5:1). Bornite is dominant in the highest-grade parts of the deposit (3% to 5% Cu) and is zoned outward to chalcopyrite (2%). At grades of <1% Cu, pyrite-chalcopyrite ± enargite, tennantite, bornite, chalcocite, and rarely covellite occur, hosted mainly by advanced argillically altered dacite tuff. | ||
• | Elevated gold grades in the Hugo North deposit occur within the up-dip (western) portion of the intensely veined high-grade core, and within a steeply dipping lower zone cutting through the western part of the quartz monzodiorite. Quartz monzodiorite in the lower zone exhibits a characteristic pink to buff colour, with a moderate intensity of quartz veining (25% by volume). This zone is characterized by finely disseminated bornite and chalcopyrite, although in hand specimen the chalcopyrite is usually not visible. The sulphides are disseminated throughout the rock in the matrix as well as in quartz veins. The fine-grained sulphide gives the rocks a black “sooty” appearance. The red colouration is attributed to fine hematite dusting, mainly associated with albite. | ||
• | The Hugo Dummet deposit is characterized by copper-gold porphyry and related styles of alteration. This includes biotite-K-feldspar (K-silicate), magnetite, chlorite-muscovite-illite, albite, chlorite-illite-hematite-kaolinite (intermediate argillic), quartz-alunite-pyrophyllite-kaolinite-diaspore-zunyite-topaz-dickite (advanced argillic), and sericite/muscovite zones. |
• | The database used to estimate the mineral resources for the Oyu Tolgoi project consists of samples and geological information from core drill holes, some of which are “daughter” holes drilled from a “parent.” The holes were drilled by Ivanhoe between 2002 and April 2005. Data transfer to the resource database was validated from original assay certificates through a 5% check of the database. | ||
• | Ivanhoe employs a comprehensive QA/QC program. Each sample batch of 20 samples contains four or five quality control samples. The quality control samples consist of one duplicate split core sample and one uncrushed field blank, which are inserted prior to sample preparation; a reject or pulp preparation duplicate, which is inserted during sample preparation; and one or two reference material samples (one <2% Cu and one >2% Cu if higher-grade mineralization is present based on visually estimates), which are inserted after sample preparation. AMEC reviewed Ivanhoe’s QA/QC procedures at site and found them to be strictly adhered to. Duplicate performance of core, coarse reject, and pulp duplicates was evaluated by AMEC and found to be well within the respective accepted ranges. The current Ivanhoe QA/QC program exceeds industry standards and demonstrates that the assay process for the Southern deposits samples is in control. | ||
• | The Oyu Tolgoi resource models were developed using industry-accepted methods. AMEC validated the model estimates and found them to reasonably estimate grade and tonnage for the Southern deposits. |
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• | The mineral resources of the Oyu Tolgoi project were classified using logic consistent with the CIM definitions referred to in National Instrument 43-101. The mineralization of the project satisfies sufficient criteria to be classified into Measured, Indicated, and Inferred mineral resource categories. |
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Integrated Development Plan Technical Report Oyu Tolgoi, Mongolia |
• | The mineralized rock mass of the Hugo North ore body is cavable at a hydraulic radius of 20 to 27 m. This is the equivalent of a footprint of approximately 80 m x 80 m to 110 m x 110 m. The current footprint of the caving envelope for both lifts greatly exceeds this hydraulic radius. | ||
• | The rock mass is characterized as an “average” cavable rock mass (not Palabora and not Cassiar) ...the Hugo North rock mass is less competent than Northparkes or Ridgeway, which caved at a smaller hydraulic radius. | ||
• | It is estimated that shear zones and faults will further improve the cavability by at least 5% to 10%. |
• | potential inrush and/or mudrush | ||
• | dust control |
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Integrated Development Plan Technical Report Oyu Tolgoi, Mongolia |
• | mine pumping | ||
• | water treatment | ||
• | process water quality and quantity | ||
• | corrosion | ||
• | shaft maintenance | ||
• | hoist rope life. |
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Integrated Development Plan Technical Report Oyu Tolgoi, Mongolia |
Zone/ | Grade | Distribution | ||||||||||||||||||
Material Type | Mt | Cu % | Au g/t | Cu % | Au % | |||||||||||||||
Southwest | ||||||||||||||||||||
Ore to plant | 123.192 | 0.53 | 0.69 | 100.0 | 100.0 | |||||||||||||||
Concentrate | 2.319 | 24.70 | 25.40 | 88.0 | 68.9 | |||||||||||||||
Tailings | 120.873 | 0.06 | 0.22 | 12.0 | 31.1 | |||||||||||||||
Hugo North Lift 1 | ||||||||||||||||||||
Ore to plant | 576.494 | 1.46 | 0.29 | 100.0 | 100.0 | |||||||||||||||
Concentrate | 25.550 | 30.00 | 5.10 | 91.9 | 79.1 | |||||||||||||||
Tailings | 550.944 | 0.14 | 0.07 | 8.1 | 20.9 | |||||||||||||||
Hugo North Lift 2 | ||||||||||||||||||||
Ore to Plant | 578.574 | 1.03 | 0.31 | 100.0 | 100.0 | |||||||||||||||
Concentrate | 19.270 | 28.10 | 7.40 | 90.0 | 79.0 | |||||||||||||||
Tailings | 559.304 | 0.10 | 0.07 | 10.0 | 21.0 | |||||||||||||||
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Phase 1 | Phase 2 | |||||||
Item | Base Case | Expanded case | ||||||
Initial Capital (prior to first mill feed) | ||||||||
Open pit | 75.1 | — | ||||||
Process plant | 230.1 | — | ||||||
Tailings storage facility | 31.4 | — | ||||||
On-site infrastructure | 114.8 | — | ||||||
Off-site infrastructure | 98.8 | — | ||||||
Indirects | 195.8 | — | ||||||
Owner’s cost (incl. pre-strip) | 175.2 | — | ||||||
Contingency | 120.2 | — | ||||||
Escalation | 55.2 | — | ||||||
Underground mine | 232.2 | — | ||||||
Subtotal | 1,328.8 | 1,328.8 | ||||||
Ramp-up | 51.1 | 51.1 | ||||||
Future Capital | ||||||||
Open pit | — | — | ||||||
Process plant | 38.4 | 228.9 | ||||||
Tailings storage facility | — | 21.0 | ||||||
On-site infrastructure | 38.3 | 71.0 | ||||||
Off-site infrastructure | — | 59.9 | ||||||
Indirects | 28.3 | 171.0 | ||||||
Underground mine | 728.7 | 1,211.9 | ||||||
Subtotal | 833.7 | 1,763.7 | ||||||
Sustaining Capital | ||||||||
Open pit | 35.8 | 74.5 | ||||||
Process plant | 79.8 | 132.8 | ||||||
Tailings storage facility | 158.4 | 269.9 | ||||||
On-site infrastructure | 38.3 | 40.1 | ||||||
Off-site infrastructure | — | — | ||||||
Indirects | — | — | ||||||
Underground mine | 1,519.5 | 1,865.8 | ||||||
Closure | — | 50.0 | ||||||
Subtotal | 1,831.8 | 2,432.9 | ||||||
Total incl. Initial Capital | 4,059.5 | 5,576.5 | ||||||
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Integrated Development Plan Technical Report Oyu Tolgoi, Mongolia |
Area | Phase 1 | Phase 2 | ||||||
Unit Costs ($/t) | ||||||||
Mining — $/t ore mined | ||||||||
Open Pit Mining | 2.11 | 2.39 | ||||||
Strip Ratio | 1.62 | 1.71 | ||||||
UG Mining — Hugo North | 2.17 | 2.16 | ||||||
On-Site Costs | ||||||||
Mining — average all sources | 2.16 | 2.28 | ||||||
Process | 2.61 | 2.53 | ||||||
G&A | 1.09 | 0.78 | ||||||
Customs Duty | 0.05 | 0.01 | ||||||
Immovable Property Tax | 0.03 | 0.02 | ||||||
Total Unit On-Site Costs | 5.94 | 5.62 | ||||||
Total Operating Costs ($M) | ||||||||
Total Site Operating Costs | 7,182 | 8,725 | ||||||
Mongolian Government Royalty | 662 | 791 | ||||||
Concentrate Transport Costs | 1,006 | 1,375 | ||||||
Treat./Ref. Charges/Penalties | 5,963 | 7,200 | ||||||
Total Operating Costs | 14,813 | 18,091 | ||||||
• | 34.3% (average) increase in real GDP | ||
• | 10.3% (average) increase in employment | ||
• | 11.5% (average) increase in real per capita disposable income | ||
• | US$7.9 billion (cumulative) increase in government operating balance, excluding debt payments | ||
• | US$54 billion (cumulative) increase in exports. |
To increase value and/or reduce risk, evaluation of the possible benefits of a dedicated smelter at or near the site is warranted. If a dedicated smelter is demonstrated to be advantageous, then optimization of metal recoveries and concentrate grades to suit the revised treatment and transportation conditions should be considered.
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Integrated Development Plan Technical Report Oyu Tolgoi, Mongolia |
• | the Special Stability Agreement with the Government of Mongolia | ||
• | a reliable electrical power supply | ||
• | VAT and import duty payments on materials and equipment | ||
• | a location on the Chinese mainline rail system for concentrate transfer from trucks loaded at Oyu Tolgoi | ||
• | Mongolian and Chinese government agreement to continuously open the border crossing at Gushaan Sukhait / Ganqimaodao. |
1 October 2005 |
Page 20-13
Integrated Development Plan Technical Report Oyu Tolgoi, Mongolia |
1. | Badarch, G. et al., 2002. A new terrane subdivision for Mongolia: implications for the Phanerozoic crustal growth of Central Asia. Journal of Asian Earth Sciences, v.21, p.87-110. | |
2. | Cargill, G., 2002. Report on the Oyu Tolgoi Exploration Project South Gobi Region, Mongolia. National Instrument 43-101 Technical Report, 11 January 2002. | |
3. | Hodgson, S., 2004. Technical Report, Preliminary Assessment, Oyu Tolgoi Project, Mongolia. National Instrument 43-101 Technical Report, January 2004. | |
4. | Journel, A.G. and Huijbregts, Ch. J. 1978. Mining Geostatistics, Academic Press, London. | |
5. | Juras, S., 2003. Technical Report, Oyu Tolgoi Project, Mongolia. National Instrument 43-101 Technical Report, February 2003. | |
6. | Juras, S., 2004a. Technical Report, Hugo Dummett — Oyu Tolgoi, Mongolia. National Instrument 43-101 Technical Report, June 2004. | |
7. | Juras, S., 2004b. Technical Report, Southern Oyu Tolgoi Deposits — Oyu Tolgoi, Mongolia. National Instrument 43-101 Technical Report, September 2004. | |
8. | Juras, S., 2005. Technical Report, Hugo Dummett and Southern Oyu Tolgoi Deposits — Oyu Tolgoi, Mongolia. National Instrument 43-101 Technical Report, May 2005. | |
9. | Perello, J. et al., 2001. Oyu Tolgoi, Mongolia: Siluro-Devonian porphyry copper-gold-Moand high-sulphidation copper mineralization with a Cretaceous chalcocite blanket. Econ.Geol. v.96, p.1407-1428. | |
10. | Tseveendorj, D. and Garamjav, D., 1999. About ancient copper mining and processing in Mongolia; Ulaanbaatar, Mongolia, Academy of Science Institute Proceedings Series 19, p.17-21 (in Mongolian). | |
11. | Knight Piésold Report PE601-00001/19, March 2005. Climatic Design Values for Feasibility Study | |
12. | Knight Piésold Report VA601-1/11-1, April 18, 2005. Report on Seismic Hazard Assessment | |
13. | RCAG-DASE-MUST Seismic Hazard Assessment of OT Site, Final Report, March 2005 | |
14. | Mongolian Wind Code Report, 23 March 2005 | |
15. | Drill Hole List and Locations | |
16. | QAQC Data | |
17. | Data Analyses Plots | |
18. | Variograms and Variogram Models | |
19. | Model Validation | |
20. | Southern Oyu Resource Model, Sections and Plans | |
21. | Hugo Dummett Resource Model, Sections and Plans | |
22. | AAJV MTR001 — Regrind Circuit Financial Assessment | |
23. | AAJV MTR002 — Fluorine Contamination of Oyu Tolgoi Concentrates Southwest Oyu Tolgoi | |
24. | AAJV MTR003 — Comparison of SIBX and 3418A | |
25. | AAJV MTR005 — Primary Grind / Rougher Recovery Relationship Southwest Deposit 7-12 Month Production Composite | |
26. | AAJV MTR006 — Primary Grind / Rougher Recovery Relationship Southwest Deposit 0-6 Month Production Composite | |
27. | AAJV MTR008 — Primary Regrind Assessment Southwest Sample 2 |
1 October 2005 |
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Integrated Development Plan Technical Report Oyu Tolgoi, Mongolia |
28. | AAJV MTR009 — Rougher Kinetic and Batch Flotation Tests Southwest 7-12 Month Production Composite | |
29. | AAJV MTR010 — Rougher Kinetic & Batch Flotation Tests Southwest 0-6 Month Production Composite | |
30. | AAJV MTR011 — Rougher Kinetic & Batch Flotation Tests Southwest Deposit Year 2 Production Composite | |
31. | AAJV MTR 012 — Rougher Kinetic and Batch Flotation Tests Southwest Deposit Year 3 Production Composite | |
32. | AAJV MTR013 — Southwest Year 4 Production Composite Rougher Kinetic and Batch Flotation Tests | |
33. | AAJV MTR014 — Rougher Kinetic and Batch Flotation Tests Southwest Year 5 Production Composite | |
34. | AAJV MTR015 — Rougher Kinetic and Batch Flotation Tests Southwest Years 6-10 Production Composite | |
35. | AAJV MTR016 — Southwest Year 2 Grind / Recovery Relationship | |
36. | AAJV MTR017 — Primary Grind / Rougher Recovery Relationship Southwest Year 3 Production Period Composite | |
37. | AAJV MTR018 — Grind / Rougher Recovery Tests Southwest Year 4 Production Composite | |
38. | AAJV MTR019 — Grind / Rougher Recovery Tests Southwest Year 5 Production Composite | |
39. | AAJV MTR020 — Grind / Rougher Recovery Tests Southwest Year 6 -10 Production Composite | |
40. | AAJV MTR021 — Locked Cycle Test Southwest 0-6 Month Production Composite | |
41. | AAJV MTR022 — Locked Cycle Test Southwest 7-12 Month Production Composite | |
42. | AAJV MTR023 — Locked Cycle Test Southwest Year 2 Production Composite | |
43. | AAJV MTR024 — Locked Cycle Test Southwest Year 3 Production Composite | |
44. | AAJV MTR025 — Locked Cycle Test Southwest Year 4 Production Composite | |
45. | AAJV MTR026 — Locked Cycle Test Southwest Year 5 Production Composite | |
46. | AAJV MTR027 — Locked Cycle Test Southwest Year 6-10 Production Composite | |
47. | AAJV MTR029 — Summary of Metallurgical Testwork Conducted by Lakefield Research (Report 1 of 5) | |
48. | AAJV MTR030 — Summary of Metallurgical Testwork Conducted at Lakefield Research (Report 2A of 5) | |
49. | AAJV MTR031 — Summary of Metallurgical Testwork Conducted at Lakefield Research (Report 2B of 5) | |
50. | AAJV MTR032 — Summary of Metallurgical Testwork Conducted at Lakefield Research Report 3 of 5 — South Deposit | |
51. | AAJV MTR033 — Summary of Metallurgical Testwork Conducted by Lakefield (Report 4 of 5) | |
52. | AAJV MTR035 — Summary of Metallurgical Testwork Conducted at Lakefield Research Report 5 of 5 — Hugo Deposit | |
53. | AAJV MTR036 — Primary Grind / Rougher Recovery Test Hugo North Year 0-5 Production Composite | |
54. | AAJV MTR037 — Primary Grind / Rougher Recovery Tests Hugo North Year 6-9 Production Composite | |
55. | AAJV MTR038 — Primary Grind / Rougher Recovery Relationship Central Deposit (C1 Pit) | |
56. | AAJV MTR039 — Hugo South Grind/ Recovery Relationship | |
57. | AAJV MTR040 — Southwest Variability Batch Tests Year 0—4 | |
58. | AAJV MTR041 — Southwest Variability Batch Tests Year 5 and Years 6—10 | |
59. | AAJV MTR042 — Rougher Kinetics and Batch Flotation Tests Hugo North | |
60. | AAJV MTR043 — Hugo South Rougher Kinetics and Batch Flotation Tests | |
61. | AAJV MTR044 — Hugo North Variability Batch Flotation Tests | |
62. | AAJV MTR045 — Locked-Cycle Test Hugo North Years 0—5 Production Composite | |
63. | AAJV MTR046 — Locked-Cycle Test Hugo North Years 6—9 Production Composite | |
64. | AAJV MTR047 — Locked Cycle Test Hugo South Year 0-5 Production Composite | |
65. | AAJV MTR048 — Locked Cycle Test Using Site Water Southwest Year3 Production Composite | |
66. | AAJV MTR049 — Central Covellite Rougher Kinetics and Batch Flotation Tests | |
67. | AAJV MTR050 — Central Covellite Ore Type Locked Cycle Flotation Test | |
68. | AAJV MTR051 — Repeat Locked-Cycle Tests Southwest Production Composites | |
69. | AAJV MTR052 — Collector Screening Tests Southwest Year 3 Production Composite |
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Integrated Development Plan Technical Report Oyu Tolgoi, Mongolia |
70. | AAJV MTR054 — Flotation Bulk Flotation Test Southwest and Hugo North Deposits | |
71. | AAJV MTR055 — Operator Variability Flotation Tests Southwest Deposits | |
72. | AAJV MTR056 — Batch Flotation Tests Blended Southwest and Hugo North Composite | |
73. | AAJV MTR057 — Concentrate Regrind and Pyrite Depression Test Work on Southwest Production Period Composites | |
74. | AAJV MTR058 — Concentrate Upgrade Tests on Southwest Production Period Composites | |
75. | AAJV MTR059 — Central Batch Tests — Individual Ore Types and Blended with Southwest Ore | |
76. | AAJV MTR060 — Grind/Rougher Recovery Tests Summary Southwest Deposit | |
77. | AAJV MTR061 — Locked-Cycle Test Hugo North 918 Fan Composite | |
78. | AAJV MTR062 — Hugo North 963 Fan Locked-Cycle Test | |
79. | AAJV MTR063 — Primary Grind / Rougher Recovery Test Hugo North 918 Fan Composite | |
80. | AAJV MTR064 — Primary Grind / Rougher Recovery Test Hugo North 963 Fan Composite | |
81. | AAJV MTR065 — Variability Tests Hugo North Extension | |
82. | AAJV MTR053 — Variability Batch Tests Hugo South Years 0-5 | |
83. | AAJV MTR070 — Metallurgical Algorithms for IDP | |
84. | Amelunxen Mineral Processing Ltd., April 2005. Interpretation of Oyu Tolgoi Flotation Kinetics and Circuit Design | |
85. | AMMTEC Ltd., April 2005. Metallurgical Testwork for the Oyu Tolgoi Copper Gold Project Conducted for Ivanhoe Mines Mongolia. Report No. A9141 | |
86. | A.R. MacPherson Consultants Ltd., August 13, 2004. Circuit Design Calculations for Oyu Tolgoi. ARM Memo to Mike Grundy, Jim Cardno | |
87. | Ciba Specialty Chemicals, March 2005. Oyu Tolgoi Project, Flocculant Screening and Coagulant Testwork, March 2006 | |
88. | Contract Support Services, Inc., July 2003. Drop Weight Test Report on Seven Composite Samples from Ivanhoe Oyu Tolgoi tested at A.R. MacPherson Consultants Ltd./Lakefield Research. CSS Job No. 200301 | |
89. | Contract Support Services, Inc., February 14, 2005. Report to Ivanhoe Mines — Results of JKSimMet Simulations Generated for Oyu Tolgoi Grinding Circuit Meeting | |
90. | Dorr-Oliver Eimco USA Inc., April 2005. Report on Testing of Oyu Tolgoi Concentrate Applying Thickening for Ivanhoe Mines | |
91. | G&T Metallurgical Services Ltd., July 5, 2005. Modal Analysis: Pilot Plant and Flotation Test Products, A Program of Modal Studies. KM1646 | |
92. | G&T Metallurgical Services Ltd., April 21, 2005. Hugo North Flotation Pilot Plant Rougher Concentrate. KM 1642 | |
93. | G&T Metallurgical Services Ltd., March 7, 2005. Analysis of Pilot Plant Concentrates. KM 1623 | |
94. | G&T Metallurgical Services Ltd., Modal Assessment of Laboratory Test Products. KM 1586 | |
95. | G&T Metallurgical Services Ltd., Modal Analysis of Ore Composites by Production Period. KM 1551 | |
96. | GL&V Australia, April 2005. Report of Investigation into the Bench Scale Thickening Evaluation of Oyu Tolgoi Tailings | |
97. | Golder Associates Pty Ltd., June 3, 2005. Geotechnical Testing — Oyu Tolgoi Tailings, Oyu Tolgoi Project — Mongolia. Job No. 05-1362-126 | |
98. | Golder Paste Technology Ltd., June 29, 2005, Report on Oyu Tolgoi Tailings Facility Laboratory Evaluation of Mine Tailings for Thickened Tailings Disposal Options. Report No. 05-1900-012 | |
99. | JKTech, October to December 2004. Drop-Weight Test Report on Twenty Six Samples from Oyu Tolgoi Deposit, Tested at AMMTEC Pty Limited, Perth, Western Australia for Ivanhoe Mines Ltd. JKTech Job No. 04001 | |
100. | Larox Inc., May 5, 2005. Test Filtration Report 10887T2 | |
101. | Metso Minerals Industries, Inc., April 8, 2005. Copper Concentrate (South West Rougher Concentrate) — Jar Mill Test. Test Plant Report No. 65045 | |
102. | MinnovEX Technologies Inc., October 2002. Preliminary Grinding Circuit Design for the Oyu Tolgoi Project, Mongolia |
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103. | MinnovEX Technologies Inc., September 26, 2003. Review of Grinding Design for Oyu Tolgoi and Indicative CEET Assessment | |
104. | MinnovEX Technologies Inc., March 2004. — Assessment of grinding circuit throughput for suggested mill sizings supplied by Ivanhoe Mines for Oyu Tolgoi project (South-West ore zone) as part of the conceptual design. Rev.2 | |
105. | MinnovEX Technologies Inc., July 2004. Ivanhoe Mines Ltd., Oyu Tolgoi Project, Grinding Circuit Evaluation Interim Report | |
106. | MinnovEX Technologies Inc., September 10, 2004. Grinding Laboratory Test Results | |
107. | MinnovEX Technologies Inc., February 14, 2005. Summary of Oyu Tolgoi CEET runs conducted in Vancouver, Jan. 31 — Feb. 4, 2005 — Final Report | |
108. | MinnovEX Technologies Inc., February, 2005. Ivanhoe Mines, Oyu Tolgoi Project, MFT Testwork and Fleet Study, Revision 0 | |
109. | MinnovEX Technologies Inc., April 20, 2005. Oyu Tolgoi Drill Core Samples, Grade Correlations with SPI | |
110. | MinnovEX Technologies Inc., April 2005. Column Flotation Pilot Plant on Oyu Tolgoi South West Ore Conducted at SGS Lakefield | |
111. | MinnovEX Technologies Inc., May 25, 2005. MFT testwork and fleet study Report No.2, Revision 1 | |
112. | MinnovEX Technologies Inc., June 10, 2005. MFT testwork and fleet study Report No.3, Revision 0 | |
113. | MinnovEX Technologies Inc., June 2, 2005, Comminution Evaluation Programme, Rev.2 | |
114. | Pollard and Taylor Geological Services, March 2005. Distribution, mineralogical associations, sites and characteristics of gold within selected samples from the Hugo Dummett North Cu-Au deposit, Oyu Tolgoi, Mongolia | |
115. | Scott Mine Consulting Services Pty Ltd., November 15, 2004. Blasting requirements for the Oyu Tolgoi Open Pits | |
116. | South Oyu Oxide Samples. LR10336-006 — Progress Report No.10 | |
117. | SGS Lakefield Research Limited, December 19, 2003. An investigation into The Recovery of Copper and Gold from the Oyu Tolgoi Project, Hugo Deposit. LR10336-004 — Progress Report No.9 | |
118. | SGS Lakefield Research Limited, December 19, 2003. An Investigation into The Recovery of Copper and Gold from Oyu Tolgoi Project, Central Oyu — Pre-Feasibility Program. LR10336-005 — PR#8 | |
119. | SGS Lakefield Research Limited, October 2, 2003. An Investigation into The Recovery of Copper and Gold from Oyu Tolgoi Project, Southwest Oyu — Pre-Feasibility Program. LR10336-005 — Progress Report No.7 | |
120. | SGS Lakefield Research Limited, July 15, 2003. An Investigation into The Recovery of Copper and Gold from Oyu Tolgoi Project, Far North Oyu (south part). LR10336-004 — Progress Report No 6 | |
121. | SGS Lakefield Research Limited, May 6, 2003. Investigation into The Amenability to Bacterial Leaching for the Recovery of Copper from Oyu Tolgoi Project, Covellite Samples. LR10336-007 — Progress Report No. 5 | |
122. | SGS Lakefield Research Limited, February 28, 2003. An investigation into The Recovery of Copper and Gold from the Oyu Tolgoi Project, Southwest Oyu and Central Oyu. LR10336-003 — Progress Report No.4 | |
123. | SGS Lakefield Research Limited, February 17, 2003. Investigation into The Recovery of Copper and Gold from Oyu Tolgoi Project Samples, LR10336-001 — Progress Report No. 3 | |
124. | SGS Lakefield Research Limited, October 16, 2002. An investigation into The Recovery of Copper by Column Leaching from Oyu Tolgoi Project Samples. LR10336-002 — Progress Report No.2 | |
125. | SGS Lakefield Research Limited, July 14, 2003. Proposed Grinding System based on Small-Scale Data, Progress Report 1 — ARM-0556/LR10044-070 | |
126. | SGS Lakefield Research Limited, December 12, 2001. An Investigation into The Recovery of Copper and Gold from Oyu Tolgoi Project Samples by Flotation. LR10336-001 — Progress Report No 1 | |
127. | SGS Lakefield Research & AR MacPherson Consultants Ltd, June 1, 2005. A Pilot Plant Investigation into the Grindability Characteristics of a Sample from the Oyu Tolgoi Deposit. LR10044-127—Report No. 1 | |
128. | SGS Lakefield Research Limited, June 1, 2005. An Investigation into the Reprocessing of Oyu Tolgoi Southwest Deposit Concentrate. LR10995-001 — Report 1 (note: Printed copy only — no electronic version) | |
129. | Terra Mineralogical Services, June 2005. Oyu Tolgoi, Mineralogy Work Synopsis 2002 — 2005. TMS Mineralogical Report | |
130. | Terra Mineralogical Services, March 26, 2005. Mineralogical Examination of Copper Concentrate Samples Generated from Oyu Tolgoi Southwest Deposit Ore. TMS Mineralogical Report, Project OT Southwest Copper Concentrates — 04DEC-001 |
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131. | Terra Mineralogical Services, March 13, 2005. Mineralogical Examination of One Concentrate and Tails Samples Generated From Oyu Tolgoi Central Deposit Ore, TMS Mineralogical Report, Project OT Central Metallurgical Products — 04DEC-002 | |
132. | Terra Mineralogical Services, November 30, 2003. Oyu Tolgoi, Mineralogy Work Synopsis 2002 — 2003. TMS Mineralogical Report | |
133. | Terra Mineralogical Services, October 30, 2003. Mineralogical Evaluation of Fluorine Carriers in One Copper Concentrate Sample from S1 Ore Type, Southwest Oyu Tolgoi, Mongolia. TMS Mineralogical Report, Project Oyu Tolgoi — OT Southwest Fluorine — 03SEP-005 | |
134. | Terra Mineralogical Services, June 17, 2003. Fluorine-bearing Minerals in Far North Copper Concentrates from “Chalcopyrite/Bornite” Ore, TMS Memo to Malcolm Lake et al, OT-Met. Program — Fluorine Determination — 03APR-002 | |
135. | Terra Mineralogical Services, June 6, 2003. Fluorine-bearing Minerals in Far North Copper Concentrate, TMS Memo to Malcolm Lake et al, OT-Met. Program — Fluorine Determination — 03APR-002 | |
136. | Terra Mineralogical Services, June 4, 2003. Determination of Arsenic Carriers and Arsenic Distribution in Copper Concentrates from Far North Ore, Oyu Tolgoi Project, Mongolia, TMS Mineralogical Report, OT-Metallurgy Program — Arsenic Carriers and Distribution — 03APR-004 | |
137. | Terra Mineralogical Services, May 12, 2003. Determination of Arsenic Carriers and Arsenic Distribution in One Copper Concentrate from Chalcocite/Bornite Ore from the Far North Zone, Oyu Tolgoi Project, Mongolia, TMS Mineralogical Report, OT—Metallurgy Program — Arsenic Carriers and Distribution — 03APR-004 | |
138. | Terra Mineralogical Services, May 8, 2003. Mineralogical Examination of Incremental Copper Rougher Concentrate Test Samples from the Oyu Tolgoi Samples 2, 4, 5 and 6, TMS Mineralogical Report, OT—Metallurgy Program — Incremental Copper Rougher Concentrates — 03APR-001 | |
139. | Terra Mineralogical Services, April 9, 2003. Mineralogical Examination of Drill Core from the Far North Zone of the Oyu Tolgoi Project, Mongolia — Part II, TMS Mineralogical Report, Oyu Tolgoi — Ore Characterization Far North — II — 03JAN-001 | |
140. | Terra Mineralogical Services, March 4, 2003. Mineralogical Examination of F30 and F32 Locked Cycle Tests Samples from Far North Ore, Oyu Tolgoi Project, TMS Mineralogical Report, OT — Metallurgy Program — Far North — LCT-F30-32 — 03FEB-003, (included in the Lakefield LR10336-004 Progress Report No 5, July 4, 2003 (Draft)) | |
141. | Terra Mineralogical Services, December 19, 2002. Mineralogical Examination of Drill Core Samples from the Central Zone of the Oyu Tolgoi Project, Mongolia, TMS Mineralogical Report, Oyu Tolgoi — Ore Characterization Central — 02AUG-003/2 | |
142. | Terra Mineralogical Services, December 10, 2002. Mineralogical Examination of Drill Core from the Southwest Zone of the Oyu Tolgoi Project, Mongolia, TMS Mineralogical Report, Oyu Tolgoi — Ore Characterization Southwest — 02AUG-003/1 | |
143. | Terra Mineralogical Services, December 2, 2002. Gold-bearing Minerals in Drill Core Samples from the South West Zone — Oyu Tolgoi, TMS Memo to Malcolm Lake et al | |
144. | Terra Mineralogical Services, December 1, 2002. Mineralogical Examination of Drill Core Samples from the Far North Zone of the Oyu Tolgoi Project, Mongolia, TMS Mineralogical Report, Oyu Tolgoi — Ore Characterization Far North — 02AUG-003/3 | |
145. | Terra Mineralogical Services, November 16, 2002. Backscatter Scans (BSE) — OT-LCT49, TMS Memo to Maurice Tagami, (included in the Lakefield Progress Report No 4, February 28, 2003) | |
146. | Terra Mineralogical Services, October 4, 2002. Examination (of) Locked Cycle Test Products, TMS Memo to Maurice Tagami, (included in the Lakefield Progress Report No 4, February 28, 2003) | |
147. | Terra Mineralogical Services, August 22, 2002. Memo to M Lake, Ore Bodies Sampling for Predictive Metallurgy | |
148. | Terra Mineralogical Services, April 10, 2003. Memo to M Lake, M Tagami, C Forster, Metallurgical Indices, Oyu Tolgoi — Far North. Project: OT — Far North-Met-Index; 03JAN-001 | |
149. | Terra Mineralogical Services, April 25, 2003. Memo to M Tagami, Note Concerning Sample S5. Project: Head Sample 5 — 03APR-003 | |
150. | Terra Mineralogical Services, May 5, 2003. Memo to M Tagami, M Lake, C Forster, Fluorine-bearing Minerals in Far North Drill Core Samples. Project: Fluorine — Drill Core Samples — 03APR-002 | |
151. | Terra Mineralogical Services Report, May 28, 2003. Mineralogical Examination of Column Leach Feed Material, Oyu Tolgoi Project, Mongolia. Project: OT-Metallurgy Program-Column Leach Feed Material 4 — 8 — 03FEB-001 |
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152. | Terra Mineralogical Services, July 20, 2003. Memo to M Lake, P Clare, Oyu Tolgoi Camp Visit July 03 Trip — Summary. Project: Oyu Tolgoi — IVANHOE Mines | |
153. | Terra Mineralogical Services, July 23, 2003. Memo to M Lake, Mineralogical Examination of Metallurgical Test Products from FNE Test F64. Project: OT-Metallurgy — FAR NORTH EXTENSION (OT-MET#16) | |
154. | Terra Mineralogical Services, July 25, 2003. Memo to M Lake, Mineralogical Examination of Metallurgical Test Products from FNE Test F61. Project: OT-Metallurgy — FAR NORTH EXTENSION (OT-MET#16) | |
155. | Terra Mineralogical Services Report, July 28, 2003 (edited September 30, 203). Mineralogical Examination of Oyu Tolgoi Ore Sample 8 (S8) — Oxide Ore. Project: OT-Metallurgy Program —Ore Characterization S8-Oxides — 03MAR-004 | |
156. | Terra Mineralogical Services, July 30, 2003. Memo to M Lake, Mineralogical Examination of Metallurgical Test Products from FNE Test F63 and F72. Project: OT-Metallurgy — FAR NORTH EXTENSION (OT-MET#16) | |
157. | Terra Mineralogical Services, September 2, 2003. Memo to M Lake, Mineralogical Examination of Rougher Tails from Far North Transition, and Far North Extension. Project: OT-Metallurgy — Rougher Tails FAR NORTH — 03AUG-002 | |
158. | Terra Mineralogical Services Report, October 30, 2003. Mineralogical Examination of Drill Core Samples from the Far North Extension Zone (HUGO NORTH) of the Oyu Tolgoi Project, Mongolia — Part III. Project: Oyu Tolgoi — Ore Characterization Far North Extension (FNE)-III-03AUG-004 | |
159. | Terra Mineralogical Services Report, October 30, 2003. Mineralogical Examination of Drill Core Samples from the Hugo North of the Oyu Tolgoi Project, Mongolia. Project: Oyu Tolgoi — Ore Characterization Hugo North -03AUG-004 | |
160. | Terra Mineralogical Services, November 4, 2003. Memo to M Lake, C Forster, B Hogg, Metallurgical Indices, Oyu Tolgoi — Far North Extension — “Hugo North”. Project: OT-Far North Extension “Hugo North” — Met-Index; 03AUG-004 | |
161. | Terra Mineralogical Services, November 11, 2003. Memo to M Lake, T Newton, Comparison of Copper carriers-Head Sample — Leach Residue. Project: OT-Sample S5- Leach Residue — 03SEP-004 | |
162. | Terra Mineralogical Services Report, December 21, 2003. Oyu Tolgoi, Mineralogy Field Laboratory Implementation and Support | |
163. | Terra Mineralogical Services Report, February 24, 2004. Evaluation of Gold in Copper Cleaner Scavenger Tails from Ore Type S2, Southwest Deposit, Oyu Tolgoi, Mongolia. Project: Ivanhoe Mines — Cu Cleaner Scavenger Tails — Gold — 03NOV-001 | |
164. | Terra Mineralogical Services Report, March 31, 2004. Mineralogical Examination of Column Leach Residues, Oyu Tolgoi Project, Mongolia. Project: OT-Metallurgy Program-Column Leach Residues Ore types 4 — 8 — 04JAN-003 | |
165. | Terra Mineralogical Services Report, April 21, 2004. Synopsis Oyu Tolgoi Copper Concentrates from Scoping and Pre-feasibility Metallurgical Tests. Project: OT Scoping and Pre-feasibility Metallurgy Program, Synopsis Copper concentrates | |
166. | Terra Mineralogical Services, May 7, 2004. Memo to M Lake, M Tagami, C Forster, Metallurgical Indices, Oyu Tolgoi — Southwest Zone. Project: OT-Oyu Tolgoi — Ore characterization Central — 02AUG-003/2 | |
167. | Terra Mineralogical Services, May 9, 2004. Memo to B Hogg, P Chare, S Hodgson, Updates and planning Oyu Tolgoi Mineralogy Work, Trip to OT Site and Perth Ivanhoe Office. Project: OT Mineralogy Work — 04APR-002 | |
168. | Terra Mineralogical Services Report, June 14, 2004. Ore Characterization of Head Composite Samples from Southwest Deposit Ore Types S1, S2 and S3, Oyu Tolgoi Project, Mongolia. Project: OT-Metallurgy Program-Head Samples Southwest S1, S2 and S3 | |
169. | Terra Mineralogical Services Report, September 12, 2004. Microprobe Analyses of Muscovite and Sericite in Drill Core Samples From the Oyu Tolgoi Central, and Hugo North Deposits, Mongolia. Project: OT-Microprobe analyses of Fluorine in White Micas — 04JUL-002 | |
170. | Terra Mineralogical Services Report, September 28, 2004. Synopsis of Oyu Tolgoi Oxide Ore from OT South and Southwest Deposits | |
171. | Terra Mineralogical Services, October 12, 2004. Memo to P Chare, B Hogg, S Brindley, Oyu Tolgoi Central Deposit Met Index Block Model — Final. Project: OT-Central-Predictive Metallurgy Mapping | |
172. | Terra Mineralogical Services, October 16, 2004. Memo to P Chare, B Hogg, C Forster, Oyu Tolgoi Mineralogy Laboratory — Review October 2004. Project: OT Mineralogy Field Laboratory - -04SEP-002 | |
173. | Terra Mineralogical Services Report, November 4, 2004. Mineralogical Examination of Drill Core Samples from the Transition Zone Between Hugo South and Hugo North (Previously Far North Transition Zone) of the Oyu |
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Tolgoi Project, Mongolia. Project: Oyu Tolgoi — Ore Characterization transition Hugo South — Hugo North (previously Far North Transition —FNT)-03SEP-006 | ||
174. | Terra Mineralogical Services Report, November 14, 2004. Mineralogical Determination of Selenium Carriers in Ore Material from the Southwest Deposit, Oyu Tolgoi, Mongolia. Project: OT-Selenium Carriers — Southwest Deposit — 04JUL-001 | |
175. | Terra Mineralogical Services Report, November 30, 2004. Mineralogical Examination of Drill Core Samples from the North Boundary of Hugo South (Previously Far North — North) of the Oyu Tolgoi Project, Mongolia. Project: Oyu Tolgoi — Ore Characterization North boundary Hugo South (previously Far North — North-FNN) — 03OCT-002 | |
176. | Terra Mineralogical Services Report, December 8, 2004. Mineralogical Examination of Drill Core Samples from OTD455B & OTD514, Hugo North Deposit (Far North Extension Zone), Oyu Tolgoi Project, Mongolia. Project: Oyu Tolgoi — Ore Characterization and Gold Examination — Hugo North DDH (Far North Extension) — 04JAN-002 | |
177. | Terra Mineralogical Services Report, June 9, 2005. Mineralogical Examination of Residue Samples for Column Leach Tests, Oyu Tolgoi Project, Mongolia. Project: OT-Residue Column Leach Tests — 05FEB-002 | |
178. | Terra Mineralogical Services, June 16, 2005. Memo to P Chare, B Hogg, C Leggett, S Brindley, Oyu Tolgoi Southwest Deposit Met Index Block Model — FINAL June 2004. Project: OT-Southwest — Predictive Metallurgy Mapping | |
179. | GRD Minproc Limited. Open Pit Cost and Production Data — Phase 1b and Phase 2 | |
180. | SRK Consulting, April 2005. Feasibility Study, Geotechnical Evaluation, South West and Central Open Pits | |
181. | Engineering Design Criteria | |
182. | Engineering Technical Decision Memoranda | |
183. | Knight Piésold Report PE601-0001/14, December 2004. Feasibility Study Tailings Storage Facility | |
184. | Golder Associates, June 2005. Final Report on Review of Feasibility Study Design Tailings Storage Facility, Oyu Tolgoi Project, Mongolia | |
185. | Golder Associates, June 3, 2005. Technical Memo, Alternative Tailings Facility Design Options, Oyu Tolgoi Tailings Storage Facility, Job #05-1362-126/3000 | |
186. | Knight Piésold Report PE601-0001/16, December 2004. Site Water Management | |
187. | EGI Report 8550/589, May 2003. Acid Rock Damage (ARD) Assessment of the Turquoise Hill (Oyu Tolgoi) Gold and Copper Project | |
188. | EGI Report 8550/633, June 2004. Manual for Turquoise Hill Waste Rock Leach Columns Operated by Ivanhoe mines Mongolia | |
189. | EGI Report 8550/638, June 2004. Preliminary Cover Design Investigations for Control of ARD at Turquoise Hill | |
190. | EGI Report 8550/641, October 2004. Assessment of Geochemical Data for the Turquoise Hill Project | |
191. | EGI Report 8550/677, June 2005. Geochemical Assessment of Pilot Plant and Bench Test Tailings for the Oyu Tolgoi (Turquoise Hill) Project | |
192. | EGI E-mail, 16 June 2005. Oyu Tolgoi Waste Rock Column Update | |
193. | EGI Appendix A — Assessment of Acid Forming Characteristics | |
194. | Mongolian Ministry of Infrastructure Development — Coal Quality Report 97-1571 | |
195. | Knight Piésold PE601-00001/18, May 18, 2005. Feasibility Study, Umdai River Diversion, Revision 1 | |
196. | Knight Piésold Report PE601-00001/17, May 2005. Airstrip Design | |
197. | Aquaterra Review of Knight Piésold Report, April 20, 2005. Feasibility Study for Umdai River Diversion | |
198. | Teshmont Consultants LP, November 2004. Power Supply and Transmission System Study for the Oyu Tolgoi Project — Phase II | |
199. | Teshmont Consultants LP, April 16, 2004. Power Supply and Transmission System Study for the Oyu Tolgoi Project, Phase II, Rev 3 | |
200. | IMMI — Financial Model for IPP/Utility Electricity Cost | |
201. | AMEC — Power System Performance Criteria | |
202. | Fluor, June 22, 2005. Feasibility Study Report, 3 x 65 MW Coal Fired Power Plant Tavan Tolgoi, Mongolia | |
203. | Aquaterra Report, 15 June 2005. Oyu Tolgoi Integrated Development Plan, Water Supply and Dewatering Sections |
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204. | Aquaterra Report, September 2004. Oyu Tolgoi Camp and Construction Water Supply | |
205. | Aquaterra Report, October 2004. Feasibility Study, Oyu Tolgoi Dewatering Investigation — Open Pit and Block Cave Mining | |
206. | Aquaterra Report, November 2004. Groundwater Conditions at the Hugo Shaft | |
207. | Aquaterra Memo, July 12, 2004. Open Pit and Underground Mine Dewatering Predictions: Options 1 and 2 | |
208. | Aquaterra Memo, April 21, 2005. Dewatering of South West Pit Using Vertical Bores | |
209. | Golder Associates, May 2005. Review of Water Supply Feasibility Study, Oyu Tolgoi Project, Mongolia | |
210. | Pipeline Systems Incorporated, October 15, 2004. Oyu Tolgoi Copper Concentrate Pipeline Routes Study, Conceptual Design & Order of Magnitude Cost Estimates, PSI Document No. 1130-G-G-001 | |
211. | Knight Piésold Report PE601-00001/12, November 2004. Feasibility Study, Regional Roads, Pipeline and Powerlines, Geotechnical Investigation and Preliminary Design | |
212. | Knight Piésold Report PE601-00001/09, September 2004. Feasibility Study Geotechnical Investigation of Mining Licence Area | |
213. | (a) AAJV Bare Cost Summary Report, Oyu Tolgoi Project, IDP Phase 1a. (b) AAJV Cost Report, Oyu Tolgoi Project, IDP Phase 1a | |
214. | Initial and Future Capital Expenditure Report | |
215. | Sustaining Capital Expenditure Report | |
216. | AMEC, May 11, 2005. Foreign Exchange Rates for the Oyu Tolgoi Project | |
217. | 2004 Rates Analysis | |
218. | Expatriate and Mongolian Labour Rates | |
219. | Base Case (Phase 1a) Process and G&A Operating Costs Summary (details in xls file) | |
220. | Expanded Case (Phase 2) Process and G&A Operating Costs Summary (details in xls file) | |
221. | Oyu Tolgoi Personnel Organization and Staffing Summary | |
222. | Discussion of Chinese Design Institutes (CDIs) | |
223. | Chinese Design Institutes (CDIs) Summary Oyu Tolgoi, May 2005 | |
224. | Chinese and Mongolian Design Institutes Hourly Labour Rates (US$) | |
225. | List of Equipment Sourced from International Suppliers | |
226. | Sustainability Report, January 10, 2005. Training System Development Report | |
227. | Oyu Tolgoi — Manning Schedules | |
228. | Chinese Contractor Rates and Cost Data | |
229. | McIntosh Engineering, June 25, 2005. Updated Preliminary Assessment for Underground Mining of Hugo Dummett North Zone (Volumes I, II and III) | |
230. | SRK Consulting, June 2005. Summary of Hugo North — Cave Mining Geotechnical Prefeasibility Study | |
231. | SRK Consulting, June 2005. Hugo North — Cave Mining Geotechnical Prefeasibility Study | |
232. | (a) AAJV Bare Cost Summary Report, Oyu Tolgoi Project, IDP Phase 1b. (b) AAJV Cost Report, OyTolgoi Project, IDP Phase 1b | |
233. | McIntosh Capital and Operating Costs Case A (Phase 1b) | |
234. | (a) AAJV Bare Cost Summary Report, Oyu Tolgoi Project, IDP Phase 1c. (b) AAJV Cos Report, Oyu Tolgoi Project, IDP Phase 1c | |
235. | AAJV Cost Report Integrated Development Plan Phase 2 | |
236. | Initial and Future Capital Expenditure Report — Expanded Case (Phase 2) | |
237. | Sustaining Capital Expenditure Report — Expanded Case (Phase 2) | |
238. | Knight Piésold Phase 2 Water Balance | |
239. | McIntosh Capital and Operating Costs Case B (Phase 2) | |
240. | Eco-Trade Ltd., October 2002. Environmental Baseline Study |
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241. | (a) NUM School of Economics Report (b) SES, NUM Economics Department Research Team, April 5, 2004. Socio Economic Impacts of “Oyu Tolgoi” Mine on Mongolia | |
242. | Ivanhoe Mines Mongolia Inc., Draft, May 2004. Socio Economic Impact Assessment Report of Oyu Tolgoi Project | |
243. | The Centre for Spartial Economics, March 2004. The Economic and Fiscal Impacts of the Oyu Tolgoi Project on Mongolia | |
244. | Eco-Trade Co., April 2003. Preliminary Community Consultation Report for the Oyu Tolgoi Project | |
245. | Ivanhoe Mines Mongolia Inc., August 2004. Herder Relocation Report, Oyu Tolgoi Project | |
246. | IMMI Community Department Report for the Board of Directors | |
247. | The Mongolian Academy of Sciences Institute of Archaeology, 2002. The Report for the Archaeological Excavation Conducted on the Licensed Field of the “Ivanhoe Mines Mongolia INCII | |
248. | The Mongolian Academy of Sciences Institute of Archaeology, 2003. A Summary Report of the Archaeological Excavation Works Conducted through Roads from Oyu Tolgoi, an Exploitation Site of “Ivanhoe Mines Mongolia Inc”. Company, To Gashuun Sukhait Frontier Crossing Point in the Territory of Khanborg Soum, South Gobi Aimak | |
249. | Mongolian National Standards Required for Oyu Tolgoi Project | |
250. | Met Data 2002 to 2004 | |
251. | AMEC Americas Ltd., April 2005. QA/QC of Air Quality Baseline Data and Information for the Oyu Tolgoi Project Mongolia | |
252. | Eco-Trade Ltd. Environmental Consultants, Mongolia, 2004. Oyu Tolgoi Project Environmental Impact Assessment, Volume 1, Report of Oyu Tolgoi to Gashuun Sukhait Road and Infrastructure Corridor, Environmental Protection Plan and Environmental Monitoring Plan | |
253. | Ephemeral wetlands and salt-marshes within Galbyn Gobi | |
254. | (a) EIA Framework (b) OT General EIA Guidelines | |
255. | Risk Analysis and Definitions for the Oyu Tolgoi Development | |
256. | (a) CCME Overview — Soil Quality Guidelines (b) CCME Environmental Quality Guidelines Development Process | |
257. | AMEC, July 2005. Preliminary Mine Closure and Reclamation Plan — Draft Report | |
258. | Detailed Cost Estimates per Socioeconomic and Environmental Component | |
259. | The Centre for Spatial Economics, Toronto, Canada, August 2005. The Economic and Fiscal Impacts of the Oyu Tolgoi Project on Mongolia — Phase 2 | |
260. | Financial Model — Base Case | |
261. | Financial Model — Expanded Case |
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