BHP Billiton is a global mining and resource company headquartered in Melbourne, Australia. It is one of the largest mining companies in the world, primarily involved in the extraction of minerals such as iron ore, copper, and coal. The company operates in various countries, focusing on sustainable practices and responsible resource management. Founded in 1885, BHP Billiton has grown through mergers and acquisitions, including the notable merger with Billiton in 2001. The company is listed on multiple stock exchanges, including the Australian Securities Exchange and the London Stock Exchange, and is a key player in the global commodities market.