BHP Billiton's first-half profit has more than doubled, beating market expectations, but the mining giant remained cautious on the short-term outlook.
Chief executive Marius Kloppers said demand continued to strengthen, especially from China, but he said the miner remains cautious on the strength and speed of recovery across the developed world.
"Longer-term outlook is robust, with the continued industrialisation and urbanisation of china and other developing economies," he said.
