Dominican Republic

Cerro De Maimon Mine

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Categories

Overview

Mine TypeUnderground
Commodities
  • Copper
  • Gold
  • Silver
  • Zinc
Production Start... Lock
Mine Life2037
ShapshotIn the spring of 2023, the Cerro de Maimón mine was under care and maintenance due to a workers' strike and blockade.

The Cerro de Maimón North (“CDMN”) deposit on the Cerro de Maimón Exploitation Concession has been in production as an open pit since September 2008. Mining of the CDMN open pit was completed in 2020, with the open pit void to be utilised as a tailings facility. Mining of the CDMN underground mine commenced in 2020 and will provide continuous production as the Cerro de Maimón South (“CDMS”) comes on track. The Dominican Republic Operations underground will be extended from North to South.

Owners

SourceSource
CompanyInterestOwnership
Shenzhen Zhongjin Lingnan Nonfemet Co.,Ltd. 100 % Indirect
Perilya is owned by Zhongjin Lingnan Mining (HK) Company Limited of Hong Kong. It bought the remaining 48% of the shares that it did not already own in December 2013, and de-listed Perilya from the Australian Stock Exchange. Zhongjin Lingnan is a wholly owned subsidiary of Shenzhen Zhongjin Lingnan Nonfemet Co., Limited, China, which is 39.23% owned by the Government of the People’s Republic of China, and is listed on the Shenzhen stock exchange.

Contractors

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Deposit type

  • VMS

Summary:

Mineralization in the massive sulphide deposit consists of closely packed, rounded to angular grains of pyrite (generally around 200 microns in diameter) with lesser, interstitial chalcopyrite and sphalerite (generally 5 to 50 microns in diameter). The ore mineral assemblage (in order of decreasing abundance) is pyrite, chalcopyrite, chalcocite, bornite, sphalerite, galena, and tetrahedrite. Base metal sulphides are very fine grained. Bornite, tennantite-tetrahedrite, and galena occur in trace amounts as inclusions within pyrite and filling interstices between grains. Gangue minerals include quartz, sericite, chlorite, rare calcite, and barite.

The massive sulphide deposit has been affected by supergene oxidation and copper enrichment. Chalcocite and covellite partially replace chalcopyrite, sphalerite and bornite. Copper grades of the protore, generally between 2% and 3%, are locally enriched to as much as 10%. These zones of enrichment are irregularly distributed within massive sulphide lenses and are observed above, below and within mainly primary massive sulphide lenses.

Reserves

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Mining Methods

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Comminution

Crushers and Mills

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Processing

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Production

2018 production data is represented for the period from January to October.
CommodityProductUnits202120202018201720162015
Copper Metal in concentrate t 000000006,5308,5498,3146,884
Gold Metal in conc./ doré oz 000000004,7166,8687,3978,757
Silver Metal in conc./ doré oz 00000000000178,877270,852298,697336,971
Zinc Metal in concentrate t 000000003,0863,9203,6364,655

Operational metrics

Metrics2018
Ore tonnes mined
Tonnes processed
Annual processing capacity 1,300 t

Production Costs

Commodity production costs have not been reported.

Heavy Mobile Equipment

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Personnel

Mine Management

Source Source
Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Oct 11, 2023
....................... Subscription required ....................... Subscription required Subscription required Oct 11, 2023
....................... Subscription required ....................... Subscription required Subscription required Oct 11, 2023

EmployeesContractorsTotal WorkforceYear
Subscription required Subscription required Subscription required 2021
Subscription required Subscription required Subscription required 2020

Aerial view:

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