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Peru
Antamina Mine

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 Location:
280 km N from Lima, Peru

  Regional Office:
Av. Avenida El Derby 055, Edificio Cronos Torre 1 - Piso 8, Santiago de Surco
Lima
Peru
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Financials
  • Fleet
  • Personnel
  • Filings & News

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Overview

StageProduction
Mine TypeOpen Pit
Commodities
  • Copper
  • Zinc
  • Molybdenum
  • Silver
Mining Method
  • Truck & Shovel / Loader
Production Start...
Mine Life5.9 years (as of Jan 1, 2022)
Antamina is a large, low-cost copper and zinc mine in north central Peru with by-products including molybdenum and silver. Antamina owns integrated pipeline and port facilities.


Owners

Source: p. 7
CompanyInterestOwnershipInvestor's Info
Mitsubishi Corp. 10 % Indirect
Teck Resources Ltd. 22.5 % Indirect
Glencore plc. 33.75 % Indirect
BHP Group Ltd. 33.75 % Indirect
Companía Minera Antamina S.A. (operator) 100 % Direct
The Antamina mine is operated by Compañìa Minera Antamina (“CMA”), a top-tier operator jointly owned by Glencore (33.75%), BHP Billiton (33.75%), Teck (22.5%), and Mitsubishi Corporation (10%).

Contractors

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Deposit Type

  • Skarn
  • Porphyry


Summary:

The Antamina intrusion (9.8 Ma2) is a multiple phase, quartz monzonite porphyry and has the Antamina Cu-Zn skarn developed around it. There is a nearby intrusion of similar composition with narrow, weakly mineralized skarn 1.5 kilometers northwest at Condorcocha.

Antamina is a polymetallic (copper, zinc and molybdenum predominate) skarn deposit resulting from complex multiple intrusive events. Copper mineralization occurs mainly as chalcopyrite except for some areas of bornite, representing approximately 5% of the deposit. Zinc mineralization generally occurs as sphalerite. Other significant sulphide minerals include molybdenite and pyrite, while trace amounts of numerous silver and bismuth bearing minerals and local areas of galena (lead sulphide) are also found within the deposit.

Antamina deposit is unusual in its persistent mineralization and predictable zonation, and has a SW-NE strike length of more than 2,500 metres and a width of up to 1,000 metres.

The Antamina and Usu Pallares deposits comprise a very large copper skarn with zinc, silver, molybdenum, lead, bismuth and arsenic formed by the intrusion of quartz monzonite body into limestones. Characteristics of the skarn zone depend upon the nature of both the intruded rock and the emanations from the intrusive body. Two types of alteration are recognized; recrystallization, or rearrangement of the constituents already in the rocks, and addition of chemical elements. Most skarn deposi ........


Mining Methods

  • Truck & Shovel / Loader


Summary:

Antamina is a large open pit mining operation using standard mining equipment and methods. Drilling is done with large rotary drills and blasting uses bulk explosives. Electric cable shovels and haul trucks do the principal material movement mining in 15 meters benchs.


Crushing and Grinding
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Processing

Source: Subscription required

Summary:

- subscription is required.


Production:

CommodityUnits2021202020192018201720162015
Copper kt  ......  Subscription required  ......  Subscription required  ......  Subscription required446422431390
Zinc kt  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Molybdenum M lbs  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Silver koz  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
All production numbers are expressed as metal in concentrate.
Subscription required - Subscription is required.

Operational Metrics:

Metrics202220212020201920182017
Daily milling capacity  ......  Subscription required  ......  Subscription required  ......  Subscription required145 kt145 kt
Total tonnes mined  ......  Subscription required  ......  Subscription required  ......  Subscription required239,417 kt242,407 kt236,366 kt
Tonnes milled  ......  Subscription required  ......  Subscription required  ......  Subscription required51,089 kt51,247 kt51,104 kt
Annual milling capacity  ......  Subscription required  ......  Subscription required  ......  Subscription required53 Mt
Daily milling rate  ......  Subscription required  ......  Subscription required  ......  Subscription required
Subscription required - Subscription is required.

Reserves at December 31, 2021:

CategoryTonnage CommodityGradeRecoverable Metal
Proven 186,000 kt Copper 0.92 %
Proven 53,100 kt Zinc 2 %
Proven 132,900 kt Molybdenum 0.035 %
Proven 186,000 kt Silver 8.8 g/t
Probable 149,800 kt Copper 0.97 %
Probable 68,000 kt Zinc 2 %
Probable 81,800 kt Molybdenum 0.035 %
Probable 149,800 kt Silver 11.2 g/t
Proven & Probable 335,800 kt Copper 0.94 % 2,800 kt
Proven & Probable 121,100 kt Zinc 2 % 2,000 kt
Proven & Probable 214,700 kt Molybdenum 0.035 % 44 kt
Proven & Probable 335,800 kt Silver 9.9 g/t 89,689 koz
Measured 120,500 kt Copper 0.7 %
Measured 36,100 kt Zinc 1.4 %
Measured 84,400 kt Molybdenum 0.018 %
Measured 120,500 kt Silver 11.2 g/t
Indicated 469,000 kt Copper 0.85 %
Indicated 149,700 kt Zinc 1.7 %
Indicated 319,300 kt Molybdenum 0.023 %
Indicated 469,000 kt Silver 11.6 g/t
Inferred 1,260,600 kt Copper 0.99 %
Inferred 397,400 kt Zinc 1.5 %
Inferred 863,200 kt Molybdenum 0.022 %
Inferred 1,260,600 kt Silver 11 g/t

Financials:

Units202120202019201820172016
Growth Capital M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required
Sustaining costs M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required
Capital expenditures M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required
Revenue M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 3,489   3,550   2,429  
After-tax Income M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 1,224   1,300   584  
EBIT M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required
EBITDA M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required
Subscription required - Subscription is required


Pipelines
Source: Subscription required


Heavy Mobile Equipment as of February 1, 2017:
HME TypeModelQuantity
Drill ....................... Subscription required ....................... Subscription required
Drill ....................... Subscription required ....................... Subscription required
Drill ....................... Subscription required ....................... Subscription required
Shovel ....................... Subscription required ....................... Subscription required
Shovel (hydraulic) ....................... Subscription required ....................... Subscription required
Truck (haul) ....................... Subscription required ....................... Subscription required
Truck (haul) ....................... Subscription required ....................... Subscription required
Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Dec 13, 2022
....................... Subscription required ....................... Subscription required Subscription required Dec 13, 2022
....................... Subscription required ....................... Subscription required Subscription required Dec 13, 2022
....................... Subscription required ....................... Subscription required Subscription required Dec 13, 2022
....................... Subscription required ....................... Subscription required Subscription required Dec 13, 2022
....................... Subscription required ....................... Subscription required Subscription required Dec 13, 2022
....................... Subscription required ....................... Subscription required Subscription required Dec 13, 2022
....................... Subscription required ....................... Subscription required Subscription required Dec 13, 2022
....................... Subscription required ....................... Subscription required Subscription required Dec 13, 2022
Subscription required - Subscription is required.


Corporate Filings & Presentations:

DocumentYear
Annual Report 2022
Form 20-F 2022
Press Release 2022
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
Annual Information Form 2018
Annual Report 2018
Annual Report 2018
Annual Report 2018
Annual Report 2018
Quarterly Report 2018
Year-end Mineral Reserves 2018
Year-end Mineral Reserves 2018
Annual Report 2017
Corporate Presentation 2017
Press Release 2017
Quarterly Report 2017
Annual Report 2016
Annual Report 2016
Annual Report 2016
Press Release 2016
Year-end Mineral Reserves 2016
Annual Report 2015
Annual Report 2015
Annual Report 2014
Corporate Presentation 2012
Technical Report 2010
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