Xstrata Copper, headquartered in Brisbane, Australia, operates mines and mineral processing plants in north Queensland, Australia, and has a 50% interest in the operating company of the Minera Alumbrera open pit copper-gold mine and processing business in Argentina, South America. In north Queensland, Australia, Xstrata Copper operates the Mount Isa Mines Limited underground copper mining and processing operations, the Ernest Henry open pit copper-gold mine, the Townsville copper refinery, Bowen coke works and Townsville port facilities. Xstrata Zinc operates the underground zinc-lead-silver mining and processing operations in Mount Isa.

In three provinces in Argentina, South America, Xstrata Copper has a 50% interest in the development and operating company of the Alumbrera open pit copper-gold mine, Minera Alumbrera Limited. Wheaton River Minerals Limited (37.5%) and Northern Orion Resources Inc (12.5%) own the remaining 50%. The Minera Alumbrera operation consists of an open pit copper-gold mine and processing facility, concentrate slurry pipeline, powerline, filter plant and rail loading facility, and port and handling facilities. In Australia, Xstrata Copper supplies copper concentrates and copper cathode to global and domestic customers. In Argentina, Xstrata supplies copper and gold concentrates and gold dore to international customers