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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
  • Mechanized Cut & Fill
Processing
  • Flotation
Mine Life12 years (as of Jan 1, 2013)
On 13 February 2019, Hochschild announced the decision to place the mine on care and maintenance due to the volatile silver price and current geological conditions.

Owners & OPERATOR

Source: p. 27, 100
CompanyInterestOwnership
Hochschild Mining Plc. 100 % Indirect
Compañía Minera Arcata S.A. (operator) 100 % Direct
Compañía Minera Ares S.A.C. 100 % Indirect
Hochschild Mining Plc. indirectly owns 100% interest in the Arcata mine through it's wholly owned subsidiary Compañía Minera Arcata S.A.
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

  • Mechanized Cut & Fill

Summary:

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

Processing Technologies

  • Flotation

Summary:

The plant at Arcata currently produces silver/gold bulk concentrate by flotation. Concentrate from the plant at Arcata is transported to the Ares plant, approximately 50 kilometres away, where it is processed into dore.

Recoveries & Grades:

CommodityParameter20182017201620152014
Silver Head Grade, g/t 321308337323286
Gold Head Grade, g/t  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Subscription required - Subscription is required.

Production:

CommodityUnits20182017201620152014
Silver koz  ......  Subscription required  ......  Subscription required  ......  Subscription required5,6135,827
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
All production numbers are expressed as metal in concentrate.
Subscription required - Subscription is required.

Operational Metrics:

Metrics20182017201620152014
Ore tonnes mined  ......  Subscription required  ......  Subscription required677,309 t648,051 t701,947 t
Daily processing capacity  ......  Subscription required  ......  Subscription required2,500 t
Daily processing rate  ......  Subscription required  ......  Subscription required1,750 t
Subscription required - Subscription is required.

Reserves at December 31, 2018:

CategoryTonnage CommodityGradeContained Metal
Measured 834,000 t Silver 438 g/t 11.7 M oz
Measured 834,000 t Gold 1.35 g/t 36.1 koz
Measured 834,000 t Silver Equivalent 547 g/t 14.7 M oz
Indicated 1,304,000 t Silver 411 g/t 17.2 M oz
Indicated 1,304,000 t Gold 1.36 g/t 56.9 koz
Indicated 1,304,000 t Silver Equivalent 521 g/t 21.8 M oz
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 531 g/t 36.5 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 472 g/t 53.6 M oz

Commodity Production Costs:

CommodityUnits20182017201620152014
Total cash costs Silver USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 11.7 / oz 12.6 / oz
All-in sustaining costs (AISC) Silver Equivalent USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 14.3 / oz 17.7 / oz
All-in sustaining costs (AISC) Gold Equivalent USD  ......  Subscription required  ......  Subscription required  ......  Subscription required
Subscription required - 'Investor' subscription is required.

Operating Costs:

Units20182017201620152014
Total operating costs ($/t milled) USD 167.7124.8101.1109.189.1

Financials:

Units20182017201620152014
Capital expenditures M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 14.6   28.9  
Revenue M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 107.42   106.06  
Gross profit M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required -0.38  
Pre-tax Income M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required -1.34  
After-tax Income M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required -1.34   -1.34  
Subscription required - Subscription is required.

Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Jul 2, 2019
....................... Subscription required ....................... Subscription required Subscription required Jul 2, 2019
Subscription required - Subscription is required.

Corporate Filings & Presentations:

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

Aerial view:

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