Chile's Corporacion Nacional del Cobre is the world's biggest producer of this metal
[DOC] [TLE] S&P Assigns Ratings to Corporacion Nacional del Cobre Chile [PAR] S&P Assigns Ratings to Corporacion Nacional del Cobre Chile ... Codelco is the 
world's largest integrated copper producer, with a 14% share of western ... 
production of molybdenum (being the world's second-largest producer of this 
metal).