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Grasberg Open Pit Copper Mine, Tembagapura, Irian Jaya, Indonesia

Produce

Copper (primary); gold

Location

Tembagapura, Irian Jaya, Indonesia

Ownership

Freeport McMoran Copper & Gold Inc. (67.3%), Rio Tinto (13%), Government of Indonesia (9.3%), PT Indocopper Investama Corporation (9%)

Geology Type

Nested coaxial porphyry ore-bodies and sulphide rich skarn at the margins; Eocene clastic carbonates with siltstones/sandstones.

Mineral Type

Chalcopyrite dominant porphyry skarn

Reserve Base

2.8 Billion tonnes; grade,1.09 % Cu

Annual Production (2006)

Copper

610,800,000kg

Gold

58,474,392g

Silver

174,458,971g

Processing

Crushing, screening, milling, flotation

Process Infrastructure/Equipment

Concentrators, thickeners, pumping station, 3x110km pipelines, port loading facilities, coal-fired power station

Employment

18,000

Operator

PT Freeport Indonesia (subsidiary of Freeport McMoran Copper and Gold)

Bucyrus 49R Blasthole Drill

2 P&H 2800 XPB shovels

4 P&H 4100 shovels

3 Hitachi 3500 shovels

2 Bucyrus 495 shovels

Cat 797B Haul trucks

12 CAT R1700 LHDs

6 CAT AD55s

Caterpillar R2900G LHD
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