Friedland calls it "the treasure chest, " and claims it contains perhaps as much copper as Falconbridge's rich Collahuasi mine in Chile.

FORBES: Magazine Article

The rig that drilled the successful shaft was supplied by a contractor at Collahuasi, a mine controlled by two multinationals, Anglo American and Xstrata.

ECONOMIST: Chile's mine rescue

Copper production, the second largest contributor to profits, rose by just 2% to 172, 900 tonnes, as troubles continued at its Collahuasi mine in Chile - including with low ore grades.

BBC: Anglo American in platinum production slump