Chile's Corporacion Nacional del Cobre is the world's biggest producer of this metal
[DOC] [TLE] The Mineral Industry of Chile in 2013 [PAR] of a leading supplier of many raw materials, especially metals associated with the 
... Chile remained the world's leading producer of copper, accounting for 31.8% 
of ... Corporacin Nacional del Cobre de Chile, 2014b, p. 71).