CHILE The US$654-million Collahuasi Rosario project was commissioned in late April, five weeks ahead of schedule and under budget. The project included prestripping the Rosario orebody; construction of a 9-km-long high-speed ore belt to the plant; boosting concentrator capacity to 110,000 tonnes/day from 60,0000 t/d; and revamping portions of the infrastructure.
The Rosario development allows Collahuasi to maintain production of copper in concentrate at a long-term average rate of 400,0000 tonnes/year. The mine is a joint venture of FALCONBRIDGE (44%), ANGLO AMERICAN (44%), and a Japanese consortium led by MITSUI & CO. The best place to learn more about Collahuasi and the "metal of civilization" is at www.collahuasi.ci.