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

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 Location:
90 km E from Iquique, Chile

  Address:
San Martin 255, piso 4, oficina 46 Edificio Empresarial
Iquique
Chile
1100548
Phone  ...  Subscription required
Fax56 5 741 7553
WebsiteWeb
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Financials
  • Personnel
  • Filings & News

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Overview

StageProduction
Mine TypeOpen Pit
Commodities
  • Copper
Mining Method
  • Truck & Shovel / Loader
Processing
  • Heap leach
  • Solvent Extraction & Electrowinning
Mine Life50 years (as of Jan 1, 2016)


Owners

Source:
CompanyInterestOwnershipInvestor's Info
BHP Group Ltd. 100 % Indirect
Compania Minera Cerro Colorado Ltd. 100 % Direct
Minera Spence S.A. 100 % Direct
Pampa Norte consists of two wholly owned operations in the Atacama Desert in northern Chile – Spence and Cerro Colorado.

The properties are operated by two companies: Compania Minera Cerro Colorado Ltd. and Minera Spence S.A.

Deposit Type

  • Porphyry


Summary:

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 Andean Cordillera in Northern Chile.

The geological evolution of Cerro Colorado area can be generalized as follows. The Cretaceous Cerro Empexa Formation, consisting of a sequence of volcanic rocks, mainly andesitic lava and breccia, lahars, some ignimbrite intercalations and dacitic tuff, was intruded by tonalitic to dioritic magma in Middle-Eocene.

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 preand 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.


Mining Methods

  • Truck & Shovel / Loader


Summary:

Spence and Cerro Colorado are comprised of open pit mines. At these mines, overburden is removed after blasting, using a truck and shovel.

Open-cut Enriched and oxidised porphyry copper deposit containing in situ copper oxide mineralisation that overlies a near-horizontal sequence of supergene sulphides.


Crushing and Grinding


Processing

  • Heap leach
  • Solvent Extraction & Electrowinning

Source: Subscription required

Summary:

Spence and Cerro Colorado are comprised of open pit mines, sulphide and oxide leaching processes and SX-EW1 plants.

Processing and crushing facilities, separate dynamic (on-off) leach pads, solvent extraction plant, electrowinning plant:

– 82 trucks operating at a benchmark performance of ~6,000 hours annually
– dynamic leach pads at both operations
– water and power supply secured until end of life for current leaching operations


Production:

CommodityUnits202020192018201720162015
Copper kt  ......  Subscription required  ......  Subscription required  ......  Subscription required254251250
All production numbers are expressed as cathode.
Subscription required - Subscription is required.

Operational Metrics:

Metrics202020192018201720162015
Annual production capacity  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required302 kt of copper cathode280 kt of copper cathode
Subscription required - Subscription is required.

Reserves at :


Financials:

Units202020192018201720162015
Capital expenditures M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 242  
Revenue M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 1,437  
EBITDA M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 762  
Subscription required - Subscription is required


Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Mar 12, 2020
Subscription required - Subscription is required.


Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2018
Annual Report 2017
Press Release 2017
Annual Report 2016
Press Release 2016
Corporate Presentation 2015
Other 2014
Corporate Presentation 2012
Subscription required - Subscription is required.

Subscription required - Subscription is required.

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