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Peru

La Zanja Mine

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La Zanja Mine

Location: 107 km E from Chiclauo, Peru

Address:

Las Begonias 415, Floor 19
San Isidro
Lima
Peru
15046

Contacts:

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Categories

Summary

Mine TypeOpen Pit
StageResidual leach
Commodities
  • Gold
  • Silver
Mining Method
  • Truck & Shovel / Loader
Production Start... Lock
SnapshotLa Zanja consists of two ore deposits: San Pedro Sur and Pampa Verde, and one beneficiation concession (concentrator).

As of 2024, none of the unit pits were mined. The operating activity of the plant focused on the rehandling and releaching of the San Pedro Sur PAD, with the aim of recovering the remaining ounces of gold in the component.

The La Zanja mining unit comprises 17 mining concessions representing the area of mines and exploration projects. Mining and exploration activities are carried out within the mining concessions.

La Zanja is a depleted mine but it is currently in the exploration stage related to the underground copper and gold sulfides project.

Step-out drilling program in 2025: Buenaventura plans to move from Oxides to Sulfides.

Owners

SourceSource
CompanyInterestOwnership
Compania de Minas Buenaventura S.A.A. 100 % Indirect
Minera La Zanja S.R.L (operator) 100 % Direct
La Zanja is 100% held and operated by Minera La Zanja S.R.L., which is wholly owned by Compania de Minas Buenaventura S.A.A.
SourceSource

Deposit type

  • Vein / narrow vein
  • Epithermal
  • Porphyry

Summary:

La Zanja is located within a large area of hydrothermal alteration, mainly related to epithermal gold deposits in high sulphidation environments, in addition to some bonanza Au vein epithermal systems, Cu-Au transitional epithermal-porphyry, and breccias pipe Cu-Au-Mo. We have two-ore deposits in production in oxide material: San Pedro Sur and Pampa Verde.

Epithermal gold mineralization in oxides associated with dome edges in San Pedro and Pampa Verde deposits. Additionally, several low and intermediate-sulfidation vein systems have been recognized on the periphery, as well as copper/molybdenum/gold mineralization related to porphyry-type systems.

Reserves

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Mining Methods

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Heavy Mobile Equipment

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Comminution

Crushers and Mills

Milling equipment has not been reported.

Processing

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Commodity Production

CommodityUnits20252024202320222021202020192018201720162015
Gold koz  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe32 72 127 140 141 
Silver oz  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe97,204217,174280,908217,292331,080
All production numbers are expressed as metal in doré. ^ Guidance / Forecast.

Operational metrics

Metrics20222021202020192018201720162015
Daily mining rate  ....  Subscribe  ....  Subscribe  ....  Subscribe
Daily processing capacity  ....  Subscribe  ....  Subscribe  ....  Subscribe
Tonnes processed  ....  Subscribe  ....  Subscribe  ....  Subscribe1,577,645 t5,702,881 t10,694,942 t9,317,652 t8,576,614 t

Production Costs

CommodityUnits20242023202220212020201920182017
Cash costs (sold) Silver USD  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe 14.2 / oz   11.2 / oz   10.7 / oz  
Credits (by-product) Gold USD  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe -42 / oz  
Cash costs (sold) Gold USD  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe 1,233 / oz   891 / oz   789 / oz  
All-in sustaining costs (sold) Gold USD  ....  Subscribe  ....  Subscribe  ....  Subscribe
All-in sustaining costs (AISC) Gold USD  ....  Subscribe  ....  Subscribe 1,439 / oz **  
** Net of By-Product.

Mine Financials

Units20242023202220212020201920182017
Capital expenditures M USD  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe 1.6   13.2   17.3  
Revenue M USD  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe 43.5   96.6   165.3  
Operating Income M USD  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe -12.3   -11.8   -18.4  
Gross profit M USD  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe -5.7   -7.5   12.1  
Pre-tax Income M USD  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe -13.9   -12.3   -19.6  
After-tax Income M USD  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe -19.4   -13.5   -12.8  
Book Value M USD  ....  Subscribe  ....  Subscribe  ....  Subscribe

Personnel

Mine Management

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required May 9, 2025
....................... Subscription required ....................... Subscription required Subscription required May 11, 2025
....................... Subscription required ....................... Subscription required Subscription required May 9, 2025
....................... Subscription required ....................... Subscription required Subscription required May 9, 2025

Workforce

EmployeesContractorsTotal WorkforceYear
...... Subscription required ...... Subscription required ...... Subscription required 2024
...... Subscription required ...... Subscription required ...... Subscription required 2023
...... Subscription required ...... Subscription required ...... Subscription required 2022
...... Subscription required ...... Subscription required ...... Subscription required 2021
...... Subscription required ...... Subscription required ...... Subscription required 2020
...... Subscription required ...... Subscription required ...... Subscription required 2019
...... Subscription required ...... Subscription required ...... Subscription required 2018
...... Subscription required 2017
...... Subscription required 2016

Aerial view:

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