Antamina boosts copper and zinc

Tag : ore copper
August 06, 2008
Antamina boosts copper and zinc reserves
Platts reported that Cia Minera Antamina has increased its estimateof copper and zinc resources by about 329 million tonnes followingsuccessful exploration work.

Official of Antamina said that "Measured and indicated resourceshave increased by 38% and inferred resources have been increased by24%."

It added that its total resources stand now at 1.521 billion tonneswith 0.93% copper, 0.51% zinc as well as 7.7 grams per tonne ofsilver. Total resources are currently broken down into 130 milliontonnes of measured copper ore, 56 million tonnes of measured zincore, 581 million tonnes of indicated copper ore, 170 tonnes ofindicated copper zinc ore, 489 million tonnes of inferred copperore and 96 million tonnes of inferred zinc ore.

Antamina continues with pit optimization activities that willresult in the publication of revised reserves later this year andcontinues to drill the ore body in an effort to expand the resourceand increase the quality of available information within therecently developed resource shell.

Antamina is 33.75% owned by BHP Billiton, 33.75% by Xstrata Copper,22.5% by Teck Cominco Limited and 10% by Mitsubishi.