BHP - Wikipedia
In 2001, BHP merged with the Billiton mining company to form BHP Billiton. In 2002, flat steel products were demerged to form the publicly traded company BHP Steel which, in 2003, became BlueScope Steel.In March 2005, BHP Billiton announced a US$7.3 billion agreed bid for WMC Resources, owners of the Olympic Dam copper, gold and uranium mine in South Australia, nickel .