Heavy metal: BHP says higher operating costs, such as fuel, staff and equipment replacement are worth $1.18bn for the year.
Heavy metal: BHP says higher operating costs, such as fuel, staff and equipment replacement are worth $1.18bn for the year.
BHP posts $15.4bn profits
Record profits announced by the Anglo-Australian diversified mining concern BHP Billiton, boosted by cost controls and greater demand from China.