Australia's largest copper-producing enterprise is BHP Group Limited (ASX: BHP). Through its massive domestic operations in South Australia—anchored by the world-class Olympic Dam mine, alongside the Prominent Hill and Carrapateena assets acquired via OZ Minerals—BHP extracts hundreds of thousands of tonnes of copper annually. When combined with its massive international holdings like the Escondida mine in Chile, BHP stands as one of the preeminent global titans in the copper mining sector.