Company has three business divisions: Mining, Transport and Water, being the first of them the most important. Antofagasta plc is one of the largest international copper producing companies in the industry. Its activities are mainly concentrated in Chile where it owns and operates three copper mines, Los Pelambres, El Tesoro and Michilla, with a total production of 498 thousand tonnes in 2004, at an average cash cost of 24.4 c/lb. The Groups mining division, Antofagasta Minerals, is also actively involved in exploration particularly in Chile and Peru. The transport division operates an extensive rail network servicing the important mining region of northern Chile, which is centred on the port of Antofagasta. The water division operates a concession for the distribution of water in this region.

SALES PER ACTIVITY (Data as of 31/12/2005)
Copper mining: 94%
Rail transport: 4%
Water: 2%