Specifications - Grasberg Open Pit, Indonesia

Key Data
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)
Key Equipment
	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