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Collahuasi Copper Mine

Producer of



Northern Chile


Falconbridge (44%), Anglo American (44%), Japanese interests (12%).

Geology type

Copper-bearing porphyry

Mineral type

Copper oxides and sulphides

Reserve base

1,800Mt grading 0.9% copper

Annual production

488,600t of copper in concentrate, plus 68,600t of cathode copper (2005).

Mining method

Conventional open pit

Processing method

Oxide ores: crushing, agglomeration, acid leaching, solvent extraction and electro-winning to produce cathode copper for export

Processing method

Sulphide ores: crushing, grinding and flotation to produce copper concentrate for export


980 plus contractors

Open pit

Bucyrus International and Driltech electric drills, Komatsu 830E haul trucks, Caterpillar 797 haul trucks, Bucyrus International mining shovels, Krupp Fördertechnik semi-mobile crushers, Modular Mining Systems truck

Contract blasting


Ore processing

General Electric mill drives, Svedala filter presses, Geho concentrate pipeline pumps

Project contractors

Bechtel and Kvaerner Metals

Tailings impoundment

Golder Associates

Camp construction

Atco Structures

Concentrate terminal

Sandwell Engineering

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