Specifications - Antamina Copper-Zinc Mine, Peru

Key Data
Producer of	Copper, zinc, silver, molybdenum
Location	Ancash, Peru
Ownership	Xstrata plc (33.75%), BHP Billiton (33.75%), TeckCominco Ltd. (22.5%) and Mitsubishi Corp. (10.0%)
Geology type	Polymetallic skarn
Mineral type	Copper and zinc sulphides with accessory bismuth, lead, molybdenum and silver minerals
Reserve base	330Mt copper sulphide ore (1.22% copper); 136Mt copper-zinc ore (1.1% copper; 2.78 zinc) (2006)
Annual production	384,200t of copper, 156,100t of zinc and 7,730t of molybdenum from 30.25Mt of ore (2006)
Life of mine	In excess of 22 years
Mining method	Open pit
Processing method	Crushing, grinding and flotation
Employment	900
Key equipment	Bucyrus blasthole drills, 5x electric and 4x diesel drills with 11in and 12.25in diameter, 4x electric Bucyrus shovels, 3x front-end loaders, 43x Caterpillar 793C, 240t trucks, 6x motorised Caterpillar graders, 2x Caterpillar 834B bulldozers,
	1x 854G bulldozer, 8x Caterpillar D10R bulldozers, 2x D8R bulldozers and 1x D6R bulldozer
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