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Mongolia
Oyu Tolgoi Mine (Hugo North Lift 1 Expansion)

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 Location:
540 km S from Ulaanbaatar, Mongolia
  Regional Office:
Monnis Tower, Chinggis Avenue 15
Sukhbaatar District - 14240
Ulaanbaatar
Mongolia
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Fax+976-11-331890
WebsiteWeb
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Fleet
  • Personnel
  • Filings & News
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Overview

StageProduction
Mine TypeOpen Pit & Underground
Commodities
  • Copper
  • Gold
  • Silver
  • Molybdenum
Mining Method
  • Truck & Shovel / Loader
  • Block caving
Production Start...
Mine Life31 years (as of Jan 1, 2020)
Located in Mongolia’s South Gobi Desert, Oyu Tolgoi is one of the world’s largest copper-gold mines.
Latest NewsOyu Tolgoi prepares concentrator for higher grades & hardness as underground ramps up     August 9, 2023

Owners

Source: p. 1
CompanyInterestOwnership
Erdenes Oyu Tolgoi LLC 34 % Indirect
Rio Tinto plc (operator) 66 % Indirect
On December 16, 2022, Rio Tinto completed its acquisition of Turquoise Hill Resources Ltd.

Rio Tinto now holds a 66% direct interest in the Oyu Tolgoi project with the remaining 34% owned by the Government of Mongolia through Erdenes Oyu Tolgoi.

Contractors

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Deposit Type

  • Porphyry
  • Vein / narrow vein

Summary:

The mineral deposits at Oyu Tolgoi lie in a structural corridor where mineralization has been discovered over a 26 km strike length. Four deposits hosting Mineral Resources have been identified: Oyut, Hugo North, Hugo South, and Heruga. Tolgoi copper-gold deposits currently comprise, from north to south: • Hugo North – The Hugo Dummett Deposit north of approximately 4766300 N (or the 110 Fault). • Hugo South - The Hugo Dummett Deposit south the 110 Fault. • Oyut - The Oyut Deposit includes the Southwest Oyu, South Oyu, Wedge, Central Oyu, Bridge, Western, and Far South zones within mining licence MV-006709. • Heruga – is within the area governed by the arrangements between Oyu Tolgoi LLC and Entrée LLC except for a small northern portion that lies within the Oyu Tolgoi mining licence MV-006709. The Oyut deposit is currently being mined as an open pit using conventional drill, blast, load, and haul methods. The Hugo North deposit is currently being developed as an underground mine using the block caving mining method. A staged approach is envisaged for developing the Hugo North deposit, involving mining two block cave lifts (Lift 1 and potentially Lift 2). Mineral Reserves have been estimated for Lift 1, which comprises three panels (Panel 0, Panel 1, and Panel 2). Hugo South and Hugo North The Hugo Dummett deposits, Hugo North and Hugo South, contain porphyry-style mineralization associated with quartz-monzodiorite intrusions, concealed beneath a sequence of Upper Devonian ........

Mining Methods

  • Truck & Shovel / Loader
  • Block caving

Summary:

The mineral deposits at Oyu Tolgoi lie in a structural corridor where mineralization has been discovered over a 26 km strike length. Four deposits hosting Mineral Resources have been identified: Oyut, Hugo North, Hugo South, and Heruga.

The Oyut deposit is currently being mined as an open pit using conventional drill, blast, load, and haul methods. The Hugo North deposit is currently being developed as an underground mine using the block caving mining method.

A staged approach is envisaged for developing the Hugo North deposit, involving mining two block cave lifts (Lift 1 and potentially Lift 2). The Lift 1 comprises three panels (Panel 0, Panel 1, and Panel 2).

The initial investment decision to construct Phase 1 of Oyu Tolgoi was made in 2010. Mining of the Oyut deposit started in 2012 using open pit mining methods. The Oyut open pit mine currently has an ore production rate of about 40 Mtpa. Part of the initial investment decision to develop Phase 1, included continued investment into the development of the Hugo North underground mine as a block caving operation (Phase 2 of the Project). Development of Phase 2 commenced in July 2016.

The current production rate from the Oyut open pit continues until 2023, after which it will be progressively reduced as production builds up from underground. Open pit mining will continue in parallel with Hugo North Lift 1 to keep the Oyu Tolgoi concentrator operating at its design capacity. Fol ........

Crushing and Grinding
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Processing

Flow Sheet: Subscription required

Summary:

- subscription is required.

Production:

CommodityProductUnits2022202120202019201820172016
Copper Metal in concentrate kt  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required159157201
Gold Metal in concentrate koz  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Silver Metal in concentrate koz  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Copper Concentrate kt  ......  Subscription required  ......  Subscription required  ......  Subscription required725722
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Operational Metrics:

Metrics2021202020192018
Total tonnes mined  ......  Subscription required97,694 kt101,316 kt91,310 kt
Tonnes processed  ......  Subscription required40,200 kt40,777 kt38,738 kt
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Reserves at December 31, 2022:

CategoryTonnage CommodityGradeContained Metal
Proven & Probable 1,149 Mt Copper 0.87 % 5.755 Mt
Proven & Probable 1,149 Mt Gold 0.3 g/t 5.204 M oz
Proven & Probable 1,149 Mt Silver 1.98 g/t 33.815 M oz
Measured & Indicated 691 Mt Copper 1.21 %
Measured & Indicated 691 Mt Gold 0.41 g/t
Measured & Indicated 691 Mt Silver 2.94 g/t
Total Resource 4,380 Mt Copper 0.69 %
Total Resource 4,380 Mt Gold 0.31 g/t
Total Resource 4,380 Mt Silver 1.93 g/t
Total Resource 4,380 Mt Molybdenum 0.004 %

Commodity Production Costs:

CommodityUnits2021202020192018
All-in sustaining costs (AISC) Copper USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 2.2 / lb†  
C1 cash costs Copper USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 1.59 / lb†  
† Net of By-Product.
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Operating Costs:

Units2021202020192018
OP mining costs ($/t mined) USD 2.24  1.8  1.88  2.13  
Processing costs ($/t milled) USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
G&A ($/t milled) USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Subscription required - Subscription is required.

Financials:

Units2022202120202019201820172016
Capital expenditures M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 1,284   901   322  
Revenue M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 1,180   940   1,203  
After-tax Income M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 139   22   140  
EBITDA M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 375   256   436  
Operating Cash Flow M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required
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Pipelines and Water Supply
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Heavy Mobile Equipment as of June 30, 2020:
HME TypeModelSizeQuantityStatus
Bulldozer ....................... Subscription required ....................... Subscription required Existing
....................... Subscription required ....................... Subscription required ....................... Subscription required Proposed
Bulldozer ....................... Subscription required ....................... Subscription required Existing
Dozer (rubber tire) ....................... Subscription required ....................... Subscription required Existing
....................... Subscription required ....................... Subscription required ....................... Subscription required Proposed
....................... Subscription required ....................... Subscription required ....................... Subscription required Proposed
Drill 172 mm ....................... Subscription required Existing
....................... Subscription required ....................... Subscription required ....................... Subscription required Proposed
Drill (blasthole) ....................... Subscription required ....................... Subscription required Existing
Drill (blasthole) ....................... Subscription required ....................... Subscription required Existing
....................... Subscription required ....................... Subscription required ....................... Subscription required Proposed
Excavator ....................... Subscription required ....................... Subscription required Existing
Excavator ....................... Subscription required ....................... Subscription required Existing
....................... Subscription required ....................... Subscription required ....................... Subscription required Proposed
Grader ....................... Subscription required ....................... Subscription required Existing
Loader ....................... Subscription required ....................... Subscription required Existing
....................... Subscription required ....................... Subscription required ....................... Subscription required Proposed
Loader ....................... Subscription required ....................... Subscription required Existing
Loader ....................... Subscription required ....................... Subscription required Existing
Loader (FEL) ....................... Subscription required 18 cu. m ....................... Subscription required Existing
Shovel (hydraulic) ....................... Subscription required 34 cu. m ....................... Subscription required Existing
Shovel (hydraulic) ....................... Subscription required 34 cu. m ....................... Subscription required Existing
Shovel (rope) ....................... Subscription required 56 cu. m ....................... Subscription required Existing
Truck (dump) ....................... Subscription required 290 t ....................... Subscription required Existing
....................... Subscription required ....................... Subscription required ....................... Subscription required ....................... Subscription required Proposed
....................... Subscription required ....................... Subscription required ....................... Subscription required Proposed
....................... Subscription required ....................... Subscription required ....................... Subscription required Proposed
Truck (service) ....................... Subscription required ....................... Subscription required Existing
Truck (service) ....................... Subscription required ....................... Subscription required Existing
....................... Subscription required ....................... Subscription required ....................... Subscription required Proposed
Truck (water) ....................... Subscription required ....................... Subscription required Existing
Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Jul 20, 2023
....................... Subscription required ....................... Subscription required Subscription required Jul 20, 2023
....................... Subscription required ....................... Subscription required Subscription required Jul 20, 2023
....................... Subscription required ....................... Subscription required Subscription required Jul 20, 2023
....................... Subscription required ....................... Subscription required Subscription required Jul 20, 2023
....................... Subscription required ....................... Subscription required Subscription required Jul 20, 2023
....................... Subscription required ....................... Subscription required Subscription required Jul 20, 2023
....................... Subscription required ....................... Subscription required Subscription required Jul 20, 2023
....................... Subscription required ....................... Subscription required Subscription required Jul 20, 2023
Subscription required - Subscription is required.

Staff:

EmployeesYear
Subscription required 2022
Subscription required 2021
Subscription required 2020
Subscription required 2019
Subscription required 2018
Subscription required 2017
Subscription required 2016
Subscription required 2015
Subscription required 2014
Subscription required 2013

Corporate Filings & Presentations:

DocumentYear
Annual Report 2022
Corporate Presentation 2022
Press Release 2022
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
Annual Report 2018
Feasibility Study Report 2018
Press Release 2018
Annual Report 2016
Fact Sheet 2016
Financial Review 2016
Annual Report 2015
Financial Review 2015
Technical Report 2014
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News:

NewsDate
Oyu Tolgoi prepares concentrator for higher grades & hardness as underground ramps up August 9, 2023

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