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Peru
Morococha Mine

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 Location:
112 km NE from Lima, Peru
  Regional Office:
Avenida La Floresta # 497 Of. 301, Charcarilla del Estanque, San Borja
Lima
Peru
Phone  ...  Subscription required
Fax51-1-618-9729
WebsiteWeb
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Fleet
  • Personnel
  • Filings & News
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Overview

StatusCare and Maintenance
Mine TypeUnderground
Commodities
  • Silver
  • Zinc
  • Lead
  • Copper
  • Gold
Mining Method
  • Mechanized Cut & Fill
  • Overhand Cut & Fill
  • Longhole open stoping
  • Hydraulic backfill
Production Start...
Mine Life7.3 years (as of Jan 1, 2014)
Subsequent to December 31, 2021, the Company made the decision to decommission and dismantle the mine's processing plant and place the Morococha mine on care and maintenance later in fiscal 2022 while strategic alternatives for Morococha are evaluated.

Care and Maintenance expenses for 2022 will be between $12.0 to $13.0 million.

Owners

Source: p. 86
CompanyInterestOwnership
Pan American Silver Corp. 92.3 % Indirect
Compania Minera Argentum S.A. (operator) 100 % Direct
Ownership Tree
Morococha is owned and operated by Compañia Minera Argentum S.A., a Peruvian company in which Pan American, through its subsidiary Pan American Silver (Peru) S.A.C., has a 92.01% voting interest. In addition, Pan American holds the majority of the non-voting investment shares resulting in a total ownership interest of approximately 92.3%. The remaining interest is held by Alejandro Gubbins and Compañia Minera Casapalca S.A.

Contractors

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Deposit Type

  • Vein / narrow vein
  • Manto
  • Mesothermal
  • Skarn

Summary:

The geological setting of the Morococha District includes a wide range of deposit types. There are four principal types of mineralization in the district, including epi-mesothermal silver-zinc-lead- copper veins, stratiform silver and base metal replacements (mantos), intrusive-sediment contact skarns and mantos, and the quartz porphyry-hosted Toromocho disseminated copper system. The first two types account for the great majority of mineralization at the Morococha mine and are the primary types that have been and will be mined under the current operating plan.

Mineralization at the Morococha mine includes epi-mesothermal silver-zinc-lead-copper veins, bedded silver-base metal replacements or mantos (which together account for the majority of the previously mined and presently known mineralization at the Property), intrusive-sediment contact skarns, and the quartz porphyry-hosted Toromocho disseminated copper system. The size and geometry of individual ore shoots are lithology and structure dependent. Shoots range up to 400 metres in length with some traced for over 800 metres down plunge. Economic widths in the veins range from 0.5 metres to more than 6.0 metres. Vein width averages in the district are on the order of 1.2 metres.

Replacement manto mineralization is generally restricted to receptive stratigraphic horizons where favourable lithologies, especially carbonates, are intersected by mineralized veins or are proximal to pre-mineral intrusive roc ........

Mining Methods

  • Mechanized Cut & Fill
  • Overhand Cut & Fill
  • Longhole open stoping
  • Hydraulic backfill

Summary:

Underground mining operations at Morococha consist primarily of long hole open stoping, and some conventional and mechanized overhand cut and fill. Classified tailings pumped hydraulically to stopes and waste rock are used for backfill where needed. Drilling is undertaken with hand held drills or electric hydraulic jumbo drills and the broken ore is removed using scoop trams. Mining of the wider veins and ore bodies has been mechanized with the aim of improving efficiency and operating costs. This mechanization is continuing on the narrower veins.

In the Manuelita and Sulfurosa areas of the mine, locomotives transport the ore in rail cars from the chutes to the shafts for hoisting. Other locomotives then transport the ore in rail cars to an adit where trucks then haul the ore to the stockpiles at the mill. In the Codiciada and Alapampa areas of the mine, ore is transported to underground stockpiles using scoop trams and then loaded onto haul trucks for transportation to surface via a haulage ramp.

The Manuelita (also known as Yauli) shaft has been deepened, and a new loading system is now available for production hoisting from a new mine level 70 metres below the Kingsmill tunnel. The Manuelita shaft is equipped with two 2.6 tonne skips which feed into chutes at an underground adit level from where material is transported in rail cars by a small locomotive to an adjacent surface truck loading facility. Ore is then trucked to the processing plant. ........

Crushing and Grinding
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Processing

Source: Subscription required

Summary:

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Production:

CommodityUnits2021202020192018201720162015
Silver koz  ......  Subscription required  ......  Subscription required  ......  Subscription required3,1212,8542,7532,346
Zinc kt  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Lead kt  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Copper kt  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Gold koz  ......  Subscription required  ......  Subscription required  ......  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:

Metrics202120202019201820172016
Tonnes milled  ......  Subscription required  ......  Subscription required743.4 kt728 kt733.4 kt728.9 kt
Daily milling capacity  ......  Subscription required  ......  Subscription required2,000 t
Annual milling capacity  ......  Subscription required  ......  Subscription required803,000 t803,000 t
Daily milling rate  ......  Subscription required  ......  Subscription required2,000 t
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Reserves at June 30, 2021:

CategoryTonnage CommodityGradeContained Metal
Proven 3.25 Mt Silver 151 g/t 15.9 M oz
Proven 3.25 Mt Zinc 3.78 %
Proven 3.25 Mt Lead 1.3 %
Proven 3.25 Mt Copper 0.38 %
Probable 3.76 Mt Silver 155 g/t 18.85 M oz
Probable 3.76 Mt Zinc 3.72 %
Probable 3.76 Mt Lead 1.36 %
Probable 3.76 Mt Copper 0.31 %
Measured 0.65 Mt Silver 134 g/t 2.6 M oz
Measured 0.65 Mt Zinc 2.64 %
Measured 0.65 Mt Lead 0.82 %
Measured 0.65 Mt Copper 0.61 %
Indicated 0.87 Mt Silver 121 g/t 3.25 M oz
Indicated 0.87 Mt Zinc 2.04 %
Indicated 0.87 Mt Lead 0.55 %
Indicated 0.87 Mt Copper 0.91 %
Inferred 5.2 Mt Silver 143 g/t 23.7 M oz
Inferred 5.2 Mt Zinc 3.29 %
Inferred 5.2 Mt Lead 1.09 %
Inferred 5.2 Mt Copper 0.39 %

Commodity Production Costs:

CommodityUnits202120202019201820172016
Cash costs (sold) Silver USD  ......  Subscription required†  ......  Subscription required†  ......  Subscription required† -4.34 / oz†   -5.34 / oz†   4.21 / oz†  
All-in sustaining costs (sold) Silver USD  ......  Subscription required†  ......  Subscription required†  ......  Subscription required† 1.52 / oz†   1.22 / oz†   9.32 / oz†  
† Net of By-Product.
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Financials:

Units202120202019201820172016
Sustaining costs M USD  ......  Subscription required  ......  Subscription required
Capital expenditures M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 10.4   9.3   8  
Revenue M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 117.5   120.2   92.9  
Operating Income M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 34  
Pre-tax Income M USD 33.2   86.5   21.5  
After-tax Income M USD 21.1   69.8   17.1  
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Heavy Mobile Equipment as of June 30, 2014:
HME TypeSizeQuantity
Bolter ....................... Subscription required
Drill (long hole) ....................... Subscription required
Drill jumbo (single boom) ....................... Subscription required
Scissor Lift ....................... Subscription required
Scoop Tram 0.7 cu. yd ....................... Subscription required
Scoop Tram 2.2 cu. yd ....................... Subscription required
Scoop Tram 4 cu. yd ....................... Subscription required
Scoop Tram 6 cu. yd ....................... Subscription required
Truck (dump) 16 t ....................... Subscription required
Truck (haul) 25 t ....................... Subscription required
Truck (haul) 40 t ....................... Subscription required
Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Jul 11, 2022
....................... Subscription required ....................... Subscription required Subscription required Jul 11, 2022
Subscription required - Subscription is required.

Corporate Filings & Presentations:

DocumentYear
Corporate Presentation 2022
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
Annual Information Form 2018
Annual Report 2018
Press Release 2018
Year-end Mineral Reserves 2018
Annual Information Form 2017
Annual Report 2017
Annual Information Form 2016
Financial Review 2016
Management Discussion & Analysis 2016
Year-end Mineral Reserves 2016
Management Discussion & Analysis 2015
Form 40-F 2014
Technical Report 2014
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