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Peru
Arcata Mine

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 Location:
176 km NW from Arequipa, Peru

  Regional Office:
Calle La Colonia No. 180 Urb. El Vivero
Santiago de Surco
Lima
Peru
Phone  ...  Subscription required
Fax+511-437-5009
WebsiteWeb
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Personnel
  • Filings & News

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Overview

StatusCare and Maintenance
Mine TypeUnderground
Commodities
  • Silver
  • Gold
Mining Method
  • Overhand stoping
  • Mechanized Cut & Fill
  • Paste backfill
Production Start...
Mine Life11.6 years (as of Jan 1, 2013)
The mine was placed on temporary care and maintenance in February 2019.


Owners

Source: p. 70
CompanyInterestOwnership
Hochschild Mining Plc. 100 % Indirect
Compañía Minera Ares S.A.C. (operator) 100 % Indirect
Hochschild Mining Plc. indirectly owns 100% interest in the Arcata mine through its wholly owned subsidiaries Compañía Minera Ares S.A.C. and Compañía Minera Arcata S.A.

Contractors

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Deposit Type

  • Epithermal
  • Vein / narrow vein


Summary:

The Arcata mine is conformed by vein systems where the epithermal vein deposits are of an intermediate sulphidation type with predominant silver values and variable quantities of gold and base metals. The main structures at Arcata are Mariana NE, Blanca, Amparo, Ramal Leslie, Alexia and Marion. The known structures at Arcata extend over 29 kilometres.


Mining Methods

  • Overhand stoping
  • Mechanized Cut & Fill
  • Paste backfill


Summary:

The veins are mined by conventional and mechanised (trackless) cut-and-fill breast or overhand stoping methods utilising timber support.


Crushing and Grinding
Source: Subscription required


Processing

Flow Sheet: Subscription required

Summary:

- subscription is required.


Production:

CommodityUnits20192018201720162015
Silver koz  ......  Subscription required3,4164,3916,3435,613
Gold koz  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Silver Equivalent koz  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Gold Equivalent koz  ......  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:

Metrics201920182017201620152014
Ore tonnes mined 37,049 t373,106 t499,385 t677,309 t648,051 t701,947 t
Daily processing capacity 2,500 t2,000 t2,500 t
Daily processing rate 1,500 t1,750 t

Reserves at December 31, 2019:
The Mineral Resources as of December 31, 2021 at Arcata mine are unchanged from December 31, 2019.

CategoryTonnage CommodityGradeContained Metal
Measured & Indicated 2,138,000 t Silver 421 g/t 29 M oz
Measured & Indicated 2,138,000 t Gold 1.35 g/t 93 koz
Measured & Indicated 2,138,000 t Silver Equivalent 538 g/t 37 M oz
Inferred 3,533,000 t Silver 371 g/t 42.1 M oz
Inferred 3,533,000 t Gold 1.26 g/t 142.6 koz
Inferred 3,533,000 t Silver Equivalent 479 g/t 54.4 M oz

Commodity Production Costs:

CommodityUnits2019201820172016
Total cash costs (sold) Silver USD  ......  Subscription required 16.9 / oz   14.5 / oz   11 / oz  
All-in sustaining costs (AISC) Silver Equivalent USD  ......  Subscription required 19.6 / oz   18.4 / oz   13.7 / oz  
All-in sustaining costs (AISC) Gold Equivalent USD  ......  Subscription required 1,448 / oz   1,362 / oz   1,014 / oz  

Operating Costs:

Units20192018201720162015
Total operating costs ($/t milled) USD 182.2167.7124.8101.1109.1

Financials:

Units20202019201820172016
Capital expenditures M USD  ......  Subscription required  ......  Subscription required 0.5   17.6   20.8  
Revenue M USD  ......  Subscription required 56.6   77.9   117.4  
Gross profit M USD  ......  Subscription required -6.3   -2.3   24.9  
Pre-tax Income M USD  ......  Subscription required -7.3   -4.2   22.9  
After-tax Income M USD  ......  Subscription required -7.3   -4.2   22.9  



Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required May 12, 2022
....................... Subscription required ....................... Subscription required Subscription required May 12, 2022
Subscription required - Subscription is required.

Staff:

EmployeesYear
Subscription required 2019

Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
Annual Report 2018
Corporate Presentation 2018
Annual Report 2017
Corporate Presentation 2017
Annual Report 2016
Corporate Presentation 2016
Annual Report 2015
Corporate Presentation 2013
Subscription required - Subscription is required.

Subscription required - Subscription is required.

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