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Peru
Oxidos de Pasco

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 Location:
172 km NE from Lima, Peru

  Regional Office:
Av. Manuel Olguín 375, Santiago de Surco
Lima
Peru
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  • Overview
  • Owners
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  • Processing
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  • Reserves
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Overview

StageProduction
Mine TypeStockpile
Commodities
  • Gold
  • Silver
  • Copper
Mining Method
  • Truck & Shovel / Loader
Processing
  • Leaching plant / circuit
  • Solvent Extraction & Electrowinning
  • Cyanide (reagent)
Mine Life12 years (as of Jan 1, 2021)
The plant processes Cerro stockpiles with silver and gold content as well as in-situ oxides located at the edge of the south of the Raúl Rojas pit.


Owners

Source: p. 7,8,42
CompanyInterestOwnership
Glencore plc. 23.29 % Indirect
Volcan Compania Minera S.A.A. 100 % Indirect
Volcan Compañía Minera S.A.A. is a subsidiary of Glencore AG, which is a subsidiary of Glencore Plc., a company domiciled in Switzerland, hereinafter the Parent, owner of 63% of common class A voting shares and an economic interest of 23.29%, excluding treasury shares.

Deposit Type


Summary:


Mining Methods

  • Truck & Shovel / Loader


Summary:

Oxidos de Pasco unit has reserves of oxidized ore with silver and gold contents, accumulated in stockpiles and in-situ mineral located at the edge of the south of the Raúl Rojas pit.

The extraction of in situ mineral, located in the southern section of Raúl Rojas open pit, has a low stripping ratio and its extraction does not present any operational problems.


Crushing and Grinding


Processing

  • Leaching plant / circuit
  • Solvent Extraction & Electrowinning
  • Cyanide (reagent)

Source: Subscription required

Summary:

The plant processes Cerro stockpiles with silver and gold content as well as in-situ oxides located at the edge of the south of the Raúl Rojas pit.

Construction of the oxide plant began in July 2012. The first lixiviation plant in Peru, it has a capacity of 2,500 tpd. The plant is designed for a future expansion to 4,000 tpd and is certified by the International Cyanide Management Institute.

In 2015, the oxides plant started operating at 1,150 tpd and gradually reached levels of 2,500 tpd by the month of June. During 2015, 743,000 tons of stockpiled oxides were processed, having ore grades of 0.30 g Au/MT and 11.02 oz Ag/MT.

An update of the reserves and resources of oxides was carried out in situ, for the design of its exploitation, south of the Raúl Rojas pit.

In 2018, operations began with the recovery in the southern part of in situ oxides that will feed mineral to the oxide plant in the following years.

In 2019, silver produc ........

Recoveries & Grades:

CommodityParameter2020201920182017201620152014
Gold Head Grade, g/t  ......  Subscription required  ......  Subscription required0.190.150.20.30.1
Silver Head Grade, oz/t  ......  Subscription required  ......  Subscription required8.099.6310.71111.3

Production:

CommodityUnits2020201920182017201620152014
Gold oz  ......  Subscription required  ......  Subscription required4,1102,8503,2725,312651
Silver M oz  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
All production numbers are expressed as metal in doré.
Subscription required - Subscription is required.

Operational Metrics:

Metrics202020192018201720162015
Ore tonnes mined  ......  Subscription required911 kt914 kt872 kt900 kt743 kt
Tonnes processed  ......  Subscription required911 kt914 kt872 kt900 kt743 kt
Daily processing rate  ......  Subscription required2,558 t2,500 t2,500 t2,500 t
Daily processing capacity  ......  Subscription required2,500 t
Subscription required - Subscription is required.

Reserves at December 31, 2020:

CategoryOreTypeTonnage CommodityGrade
Measured & Indicated In-Situ (OP) 3.6 Mt Silver 3.8 oz/t
Measured & Indicated In-Situ (OP) 3.6 Mt Zinc 0.1 %
Measured & Indicated In-Situ (OP) 3.6 Mt Lead 0.1 %
Inferred In-Situ (OP) 0.4 Mt Silver 3.7 oz/t
Inferred In-Situ (OP) 0.4 Mt Zinc 0.1 %
Inferred In-Situ (OP) 0.4 Mt Lead 0.2 %

Operating Costs:

Units202020192018201720162015
Combined mining costs ($/t milled) USD 7.17.85.65.35.15.7
Processing costs ($/t milled) USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Total operating costs ($/t milled) USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Subscription required - Subscription is required.

Financials:

Units202020192018201720162015
Capital expenditures M USD  ......  Subscription required  ......  Subscription required7.1   3.3   0.3   6  
Revenue M USD  ......  Subscription required56  
Subscription required - Subscription is required


Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Sep 24, 2021
Subscription required - Subscription is required.


Corporate Filings & Presentations:

DocumentYear
................................... 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 Report 2018
Annual Report 2018
Management Discussion & Analysis 2018
Annual Report 2017
Annual Report 2017
Management Discussion & Analysis 2017
Annual Report 2016
Management Discussion & Analysis 2016
Annual Report 2015
Management Discussion & Analysis 2015
Annual Report 2014
Management Discussion & Analysis 2014
Annual Report 2013
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Aerial view:

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