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Indonesia
Batu Hijau Mine

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 Location:
80 km SW from Sumbawa Besar, Indonesia
  Regional Office:
West Sumbawa Regency West Nusa Tenggara
Indonesia
Phone  ...  Subscription required
Fax+62-372-6353-19
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
Commodities
  • Gold
  • Copper
  • Silver
Mining Method
  • Truck & Shovel / Loader
Production Start...
Mine Life2032
Batu Hijau mine is the second largest copper and gold mine in Indonesia, and the combined mineral reserves at the Batu Hijau mine and the Elang project are one of the largest copper-gold complexes in the world.

Processing project
Batu Hijau processing plant is being expanded to up to 85Mt per annum from existing capacity of around 35 to 40Mt per annum to process additional ore supply from Phase 8 and the future Elang mine.

Smelting
Construction of a 100%-owned 900ktpa copper smelter is underway. Expected to be completed by 2024, to process copper concentrate from Batu Hijau and the future Elang mine. Smelter to produce cathode copper, gold and silver bullion and other by-products.

Power expansion project
Construction of a 450MW Combined Cycle Power Plant (“CCPP”) and LNG storage and regasification facilities to provide the increase power demand of process expansion, smelter and to replace existing coal fired power plant.

Owners

Source: p. 7
CompanyInterestOwnership
PT Medco Energi Internasional Tbk 23.13 % Indirect
The Batu Hijau open pit copper/ gold mine is now owned and operated by PT Amman Mineral Nusa Tenggara (AMNT).

PT Amman Mineral Nusa Tenggara (“AMNT”) is 99.99% owned by PT Amman Mineral Internasional (“AMI”) and 0.01% by PT AP Investment (API).

PT Amman Mineral Internasional (“AMI”) is a holding company for world-class copper-gold mining operations, including the established, high quality and low-cost Batu Hijau mine.

PT Medco Energi Internasional Tbk ownership of AMI is 23.13%.

Contractors

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Deposit Type

  • Porphyry

Summary:

The deposit is hosted by a central stock of multiple tonalite porphyries intruded into older diorite and andesite volcanic wallrocks and activities continue to develop the reserve.

Mining Methods

  • Truck & Shovel / Loader

Summary:

The Batu Hijau is a large open pit porphyry copper/gold deposit mined using traditional truck and shovel techniques.

Macmahon is performing its life of mine contract to provide all mining services at the Batu Hijau mine in Indonesia for PT Amman Mineral Nusa Tenggara (AMNT). Batu Hijau is a well-established, world class copper /gold deposit (forecast to April 2032).

Since mining operation started in 2000, the mine has gone through a total of seven mining phases. The Batu Hijau mine is currently in Phase 7 production. Currently, the mine has a length of roughly 3 km, a width around 2.5 km, with a current maximum depth at -315 meters below sea level. In Batu Hijau Pit, each bench is 15 meters high, with bench face angle varies between 60 and 70 degrees, and the overall slope angle of the pit varies between 36 and 38 degrees.

Batu Hijau mine is planned to produce until 2030 from open pit cutbacks known as Phase 7 and 8. Phase 7 ore is scheduled to be depleted by 2024. Phase 8 cutback commenced in mid-2021 and ore production is planned to commence from 2025 until 2030.

Mining operations are supported by a well-capitalized core production mining fleet consisting of 6 electric rope shovels, 12 mining excavators, 181 mining haul truck and in-pit primary crusher.

Higher grade ore is hauled directly to primary crushers as process plant feed, other ores are either directly crushed, placed on stockpiles for blending or processing a ........

Crushing and Grinding
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Processing

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Summary:

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Production:

CommodityUnits2022202120202019201820172016
Gold koz  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required71397841
Copper M lbs  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Silver koz  ......  Subscription required
All production numbers are expressed as metal in concentrate.
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Operational Metrics:

Metrics20222021202020192018
Daily processing capacity  ......  Subscription required
Annual processing capacity  ......  Subscription required
Ore tonnes mined  ......  Subscription required  ......  Subscription required252 Mt226 Mt146 Mt
Total tonnes mined  ......  Subscription required  ......  Subscription required275 Mt263 Mt178 Mt
Daily mining capacity  ......  Subscription required  ......  Subscription required
Subscription required - Subscription is required.

Reserves at December 31, 2022:

CategoryTonnage CommodityGradeContained Metal
Proven & Probable 803 Mt Gold 0.31 g/t 8.07 M oz
Proven & Probable 803 Mt Copper 0.37 % 6.61 B lbs
Total Resource 1,642 Mt Gold 0.11 g/t 5.87 M oz
Total Resource 1,642 Mt Copper 0.25 % 8.97 B lbs

Commodity Production Costs:

CommodityUnits2022202120202019
Total cash costs (sold) Copper USD
Total cash costs (sold) Gold USD
All-in sustaining costs (sold) Copper USD
All-in sustaining costs (sold) Gold USD
C1 cash costs (sold) Copper USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
† Net of By-Product.
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Operating Costs:

Units202220212020201920182017
OP mining costs ($/t mined) USD 2.28  2.15  1.89  2.05  2.07  2.89  

Financials:

Units20222021202020192018
Capital expenditures M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Revenue M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Gross profit M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Pre-tax Income M USD
After-tax Income M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required -167.7  
EBITDA M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
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Pipelines and Water Supply
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Heavy Mobile Equipment:
HME TypeModelSizeQuantityRef. Date
Dozer ....................... Subscription required ....................... Subscription required Dec 31, 2022
Dozer ....................... Subscription required ....................... Subscription required Dec 31, 2022
Dozer ....................... Subscription required ....................... Subscription required Dec 31, 2022
Dozer ....................... Subscription required ....................... Subscription required Dec 31, 2022
Dozer ....................... Subscription required ....................... Subscription required Dec 31, 2022
Drill ....................... Subscription required ....................... Subscription required Dec 31, 2022
Drill (blasthole) ....................... Subscription required ....................... Subscription required Dec 31, 2022
Drill (blasthole) ....................... Subscription required ....................... Subscription required Dec 31, 2022
Drill (blasthole) ....................... Subscription required ....................... Subscription required Dec 31, 2022
Drill (blasthole) ....................... Subscription required ....................... Subscription required Dec 31, 2022
Excavator ....................... Subscription required 800 t ....................... Subscription required Feb 16, 2023
Excavator ....................... Subscription required ....................... Subscription required Dec 31, 2022
Excavator ....................... Subscription required ....................... Subscription required Dec 31, 2022
Excavator ....................... Subscription required ....................... Subscription required Dec 31, 2022
Excavator ....................... Subscription required ....................... Subscription required Dec 31, 2022
Excavator ....................... Subscription required ....................... Subscription required Dec 31, 2022
Excavator ....................... Subscription required ....................... Subscription required Dec 31, 2022
Excavator ....................... Subscription required ....................... Subscription required Dec 31, 2022
Excavator ....................... Subscription required ....................... Subscription required Dec 31, 2022
Excavator ....................... Subscription required ....................... Subscription required Dec 31, 2022
Excavator ....................... Subscription required ....................... Subscription required Dec 31, 2022
Loader ....................... Subscription required ....................... Subscription required Dec 31, 2022
Loader ....................... Subscription required ....................... Subscription required Dec 31, 2022
Loader ....................... Subscription required ....................... Subscription required Dec 31, 2022
Loader ....................... Subscription required ....................... Subscription required Dec 31, 2022
Loader ....................... Subscription required ....................... Subscription required Dec 31, 2022
Shovel (rope) ....................... Subscription required ....................... Subscription required Dec 31, 2022
Shovel (rope) ....................... Subscription required ....................... Subscription required Dec 31, 2022
Truck ....................... Subscription required ....................... Subscription required Dec 31, 2022
Truck ....................... Subscription required ....................... Subscription required Dec 31, 2022
Truck (haul) ....................... Subscription required ....................... Subscription required Dec 31, 2022
Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Sep 16, 2023
....................... Subscription required ....................... Subscription required Subscription required Sep 16, 2023
....................... Subscription required ....................... Subscription required Subscription required Sep 16, 2023
....................... Subscription required ....................... Subscription required Subscription required Sep 16, 2023
....................... Subscription required ....................... Subscription required Subscription required Sep 16, 2023
....................... Subscription required ....................... Subscription required Subscription required Sep 16, 2023
....................... Subscription required ....................... Subscription required Subscription required Sep 16, 2023
....................... Subscription required ....................... Subscription required Subscription required Sep 16, 2023
....................... Subscription required ....................... Subscription required Subscription required Sep 16, 2023
....................... Subscription required ....................... Subscription required Subscription required Sep 16, 2023
....................... Subscription required ....................... Subscription required Subscription required Sep 16, 2023
....................... Subscription required ....................... Subscription required Subscription required Sep 16, 2023
....................... Subscription required ....................... Subscription required Subscription required Sep 16, 2023
Subscription required - Subscription is required.

Staff:

EmployeesContractorsTotal WorkforceYear
Subscription required Subscription required Subscription required 2022
Subscription required Subscription required Subscription required 2021
Subscription required Subscription required Subscription required 2020
Subscription required 2015

Corporate Filings & Presentations:

DocumentYear
Corporate Presentation 2023
Corporate Presentation 2023
Annual Report 2022
Corporate Presentation 2022
Corporate Presentation 2022
Other 2022
Sustainability Report 2022
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
Annual Report 2018
Annual Report 2017
Form 10-K 2016
Press Release 2016
Year-end Mineral Reserves 2016
Form 10-K 2015
Subscription required - Subscription is required.

Subscription required - Subscription is required.

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