Peru

Cerro De Pasco - Oxidos

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Categories

Overview

Mine TypeStockpile
StatusActive
Commodities
  • Zinc
  • Lead
  • Copper
  • Silver
  • Gold
Mining Method
  • Truck & Shovel / Loader
Production Start... Lock
Mine Life... Lock
SnapshotOn October 1, 2023, Óxidos de Pasco merged with Cerro de Pasco.

The Cerro De Pasco - Oxidos unit treatments the oxide stockpiles, the in situ oxides, the pyrite stockpiles at the Oxides leaching plant.

Owners

SourceSource
CompanyInterestOwnership
Glencore plc. 23.29 % Indirect
Empresa Administradora Cerro S.A.C. (operator) 100 % Direct
Volcan Compañía Minera S.A.A. is a subsidiary of Glencore AG, which is a subsidiary of Glencore Plc., owner of 63% of common class A voting shares and an economic interest of 23%, excluding treasury shares.

Empresa Administradora Cerro S.A.C. is a wholly-owned subsidiary Volcan Compañía Minera S.A.A., absorbed Óxidos de Pasco S.A.C., which came into effect in October 2023.

In Q4 2022, Glencore commenced a process to dispose of its 23.3% economic interest in Volcan, which is ongoing. As a result, the carrying amounts of Volcan assets and liabilities as at 31 December 2023 and 31 December 2022 are classified as held for sale.

Deposit type

  • Breccia pipe / Stockwork
  • Vein / narrow vein

Summary:

Historically, the Cerro de Pasco deposit had a supergene oxide cap. The only remaining area of the deposit with oxide mineralization is in the Santa Rosa open pit area. In the Santa Rosa area in the southern part of the open pit, there is a remnant of the Mitu Group (oxidized siltstones and conglomerate) cut by phreatic and hydrothermal breccias. More recent mapping and sampling during mining identified the host rock as Mitu Group interbedded sandstone and conglomerate, cut by C2 veins resulting in massive and disseminated mineralization. Supergene oxidation generated the mined zone of silver-gold oxide mineralization which is 800 m long (and open to southeast), 400 m wide, and 125 m deep. In 2022, the integral geological model of In Situ Oxides was updated, characterizing three domains of gold and silver mineralization, called: (i) volcanic protolith hydrothermal breccia (BxH-v), sedimentary protolith hydrothermal breccia (BxH-s) and pyrite IV (at the base of the In Situ Oxide deposit with high silver values).

Reserves

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Mining Methods

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Comminution

Crushers and Mills

Milling equipment has not been reported.

Processing

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Production

Starting in 2018, the ore that is being processed is a blend of materials from Open Pit In Situ, Stock Pile Hanancocha, and Stock Pile Pyrite.

The proportion of oxides from Open Pit In Situ in the blend is 27.6% for 2023, 43.74% for 2022, 65% for 2021, 22% for 2020 and 2019,
CommodityUnits202320222021202020192018201720162015
Silver M oz  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe3.33.43.74.13.6
Gold oz  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe15,3804,1102,8503,2725,312
All production numbers are expressed as metal in doré.

Operational metrics

Metrics202320222021202020192018201720162015
Daily processing rate  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe2,558 t2,500 t2,500 t2,500 t
Ore tonnes mined  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe911 kt914 kt872 kt900 kt743 kt
Tonnes processed  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe911 kt914 kt872 kt900 kt743 kt
Daily processing capacity  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe2,500 t

Production Costs

Commodity production costs have not been reported.

Operating Costs

Currency20232022202120202019201820172016
OP mining costs ($/t milled) USD 7.7  11  9.3  7.1  7.8  5.6  
Processing costs ($/t milled) USD  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe
Total operating costs ($/t milled) USD  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe

Financials

Units2023202220212020201920182017
Capital expenditures M USD  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe 6   7.1   3.3  
Revenue M USD  ....  Subscribe  ....  Subscribe  ....  Subscribe 78   56  
Gross profit M USD  ....  Subscribe  ....  Subscribe  ....  Subscribe 11.9   7.8  
Operating Income M USD  ....  Subscribe  ....  Subscribe  ....  Subscribe 10.8   24  
Pre-tax Income M USD  ....  Subscribe  ....  Subscribe
After-tax Income M USD  ....  Subscribe  ....  Subscribe  ....  Subscribe -10.3   10.3  

Heavy Mobile Equipment

Fleet data has not been reported.

Personnel

Mine Management

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required May 11, 2024
....................... Subscription required ....................... Subscription required Subscription required May 11, 2024
....................... Subscription required ....................... Subscription required Subscription required May 11, 2024
....................... Subscription required ....................... Subscription required Subscription required May 11, 2024
....................... Subscription required ....................... Subscription required Subscription required May 11, 2024

EmployeesYear
...... Subscription required 2022
...... Subscription required 2021
...... Subscription required 2020
...... Subscription required 2019
...... Subscription required 2018
...... Subscription required 2017

Aerial view:

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