Chile's Corporacion Nacional del Cobre is the world's biggest producer of this metal
The creation of the Corporacin Nacional del Cobre de 
Chile, as it is .... grading 0.78% copper containing 44.3 million tonnes of metal 
and additional... [DOC] [TLE] History of Corporacion Nacional del Cobre de Chile ... [PAR] Read about the history of Corporacion Nacional del Cobre de Chile.