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Brazil
Onca Puma Mine

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 Location:
21 km N from Tucuma, Brazil

  Address:
Praia de Botafogo 186 – offices 701-1901
Rio de Janeiro
Brazil
22250-14
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WebsiteWeb
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Personnel
  • Filings & News

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Overview

StageProduction
Mine TypeOpen Pit
Commodities
  • Nickel
Mining Method
  • Truck & Shovel / Loader
Production Start...
Mine Life2074


Owners

Source: p. 76
CompanyInterestOwnership
Vale S.A. (operator) 100 % Direct
Vale S.A., operates a nickel production system, Onca Puma, in the South Atlantic region.

Contractors

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Deposit Type

  • Laterite
  • Saprolite


Summary:

The Onca Puma mine is built on lateritic nickel deposits of saprolitic laterite ore.

Lateritic weathering profiles at Onca and Puma can be classified according to protolith mineralogy and the accumulation of quartz. Protolith mineralogy, the presence of significant chlorite and/or vermiculite in the serpentine #3 host at Puma distinguishes that deposit from Onca where the dominant Serpentinite #2 host is largely serpentine and chromite.

Each of the deposits has a saprolitic zone overlaid by a limonitic zone (if it has survived erosion). Nonsiliceous or normal profiles consist of serpentinite saprolite overlain by thin layers of limonite and in rare cases by some form o f ferricrete. Siliceous profiles are defined as having greater than 15% quartz in both siliceous saprolite and siliceous limonite. The limonite zones overlying tire On9a and Puma saprolites are generally thin, discontinuous, and from their chemistry consist of goethite, chromite, several manganese oxide phases, and sporadic amounts of quartz.

The principal minerals in the Onca saprolite in decreasing order of importance are serpentine, limonite, quartz, chromite and vermiculite. Ni occurs in solid solution largely in serpentine with subordinate amounts in goethite (=limonite) and vermiculite. Minor amounts of various green silicates, “gamierites” intergrown with chalcedonic quartz, are seen locally in Onca saprolite; grains of possible nepouite contained 13-19 wt% Ni have also b ........


Mining Methods

  • Truck & Shovel / Loader


Summary:

Onca Puma is an open pit nickel mine which is located at Para in Brazil. Ore is extracted from nickel laterite deposit via conventional truck and sovel method.

From September 2017 through June 2019, mining activities and nickel processing plant in Onça Puma were suspended as a result of injunctions issued by the Federal Court of Appeals (Tribunal Regional Federal –“TRF”) in favor of the MPF in this proceeding.


Crushing and Grinding


Processing

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Summary:

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Production:

CommodityUnits202120202019201820172016
Nickel kt  ......  Subscription required  ......  Subscription required  ......  Subscription required232524
All production numbers are expressed as alloy.
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Operational Metrics:

Metrics20212020201920172016
Ore tonnes mined  ......  Subscription required  ......  Subscription required321 kt964 kt1,710 kt
Annual production capacity  ......  Subscription required  ......  Subscription required27,000 t of nickel metal in alloy
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Reserves at December 31, 2021:

CategoryTonnage CommodityGrade
Proven 53.9 M dmt Nickel 1.6 %
Probable 57.1 M dmt Nickel 1.28 %
Proven & Probable 111 M dmt Nickel 1.44 %
Measured 15.4 M dmt Nickel 1.37 %
Indicated 23.2 M dmt Nickel 1.28 %
Measured & Indicated 38.6 M dmt Nickel 1.32 %
Inferred 5.1 M dmt Nickel 1.2 %

Commodity Production Costs:

CommodityUnits202120202019
Cash costs (sold) Nickel USD  ......  Subscription required†  ......  Subscription required†  ......  Subscription required†
† Net of By-Product.
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Financials:

Units202120202019
EBITDA M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required
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Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Jun 10, 2022
....................... Subscription required ....................... Subscription required Subscription required Jun 10, 2022
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Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2019
Form 20-F 2018
Form 20-F 2017
Form 20-F 2016
Form 20-F 2015
Form 20-F 2014
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