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Chile
Pampa Norte Operation (Cerro Colorado Mine, Spence Mine)

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 Location:
90 km E from Iquique, Chile

  Regional Office:
Esmeralda 340 Floor 6
Iquique
Chile
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  • Overview
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  • Geology
  • Mining
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  • Financials
  • Personnel
  • Filings & News

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Overview

StageProduction
Mine TypeOpen Pit
Commodities
  • Copper
  • Molybdenum
  • Gold
  • Silver
Mining Method
  • Truck & Shovel / Loader
Production Start...
Mine Life40 years (as of Jan 1, 2022)
Pampa Norte consists of two assets in the Atacama Desert in northern Chile – Spence and Cerro Colorado. Spence produces copper cathodes and copper concentrate, with by-products including gold, silver and molybdenum. Cerro Colorado produces copper cathodes.


Owners

Source: p. 28,205,206
CompanyInterestOwnershipInvestor's Info
BHP Group Ltd. 100 % Indirect
Pampa Norte (consists of Spence and Cerro Colorado) is owned by BHP: 100 percent.

Contractors

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Deposit Type

  • Porphyry


Summary:

Spence
The Spence porphyry copper deposit is related to three stocks of dacitic porphyries and tourmaline-bearing hydrothermal breccias, which were emplaced in andesitic volcanic rocks of the Upper Cretaceous–Lower Tertiary. Laser 40Ar/39Ar plateau ages in magmatic biotites of pre- and post-mineralization dacitic stocks show evidence that hypogene mineralization (chalcopyrite, pyrite, molybdenite, and lesser amounts of bornite and tennantite) occurred between 56 and 57 Ma.

Unconsolidated gravel deposits and a leach cap cover an oxidation blanket characterized by atacamite, chrysocolla, and minor brochantite, in which the Cu-hydroxychloride is by far the dominating mineral. Underlying the oxide zone is a well-developed chalcocite- and lesser covellite-bearing supergene enrichment blanket.

Representative samples from pit walls and drill cores were selected in order to cover most of the hypogene and supergene zones, including chalcopyrite from the hypogene-enriched sulfides and hypogene zones, chalcocite from the supergene-enriched sulfides and hypogene-enriched blankets, chrysocolla from the oxide blankets, and atacamite from the oxide zone within the host rocks and gravels and leach cap.

Cerro Colorado
The Cerro Colorado porphyry copper deposit is the northernmost currently active copper mine in Chile. It belongs to one of the Paleocene to early Eocene porphyry copper deposits that are distributed along the western slope of the main A ........


Mining Methods

  • Truck & Shovel / Loader


Summary:

Pampa Norte consists of two assets in the Atacama Desert in northern Chile – Spence and Cerro Colorado. Both are Open-cut mine.


Crushing and Grinding


Processing

Flow Sheet: Subscription required

Summary:

- subscription is required.


Production:

CommodityProductUnits2023202220212020201920182017
Copper Metal kt  ......  Subscription required ^
Copper Metal in concentrate kt  ......  Subscription required  ......  Subscription required
Copper Cathode kt  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required264254
Molybdenum Metal in concentrate t  ......  Subscription required
Gold Metal in concentrate oz  ......  Subscription required  ......  Subscription required
Silver Metal in concentrate koz  ......  Subscription required  ......  Subscription required
^ Guidance / Forecast.
Subscription required - Subscription is required.

Operational Metrics:

Metrics202220212020201920182017
Total tonnes mined  ......  Subscription required  ......  Subscription required  ......  Subscription required149,971 kt167,232 kt151,677 kt
Tonnes milled  ......  Subscription required  ......  Subscription required  ......  Subscription required39,558 kt37,747 kt35,266 kt
Subscription required - Subscription is required.

Reserves at June 30, 2022:

CategoryTonnage CommodityGrade
Proven 725 Mt Copper 0.51 %
Probable 419 Mt Copper 0.5 %
Proven & Probable 1,150 Mt Copper 0.5 %
Measured 282 Mt Copper 0.45 %
Indicated 570 Mt Copper 0.47 %
Measured & Indicated 852 Mt Copper 0.46 %
Inferred 636 Mt Copper 0.44 %

Financials:

Units2022202120202019201820172016
Capital expenditures M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 757   213   321  
Revenue M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 1,831   1,401   1,098  
EBIT M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 626   306  
EBITDA M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 924   620   401  
Subscription required - Subscription is required



Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Sep 29, 2022
....................... Subscription required ....................... Subscription required Subscription required Sep 29, 2022
....................... Subscription required ....................... Subscription required Subscription required Jan 17, 2023
....................... Subscription required ....................... Subscription required Subscription required Sep 29, 2022
....................... Subscription required ....................... Subscription required Subscription required Sep 29, 2022
....................... Subscription required ....................... Subscription required Subscription required Sep 29, 2022
....................... Subscription required ....................... Subscription required Subscription required Sep 29, 2022
....................... Subscription required ....................... Subscription required Subscription required Sep 29, 2022
Subscription required - Subscription is required.


Corporate Filings & Presentations:

DocumentYear
Annual Report 2022
Form 20-F 2022
Press Release 2022
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
Annual Report 2018
Annual Report 2017
Press Release 2017
Annual Report 2016
Press Release 2016
Corporate Presentation 2015
Other 2014
Corporate Presentation 2012
Other 2011
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