BHP to boost copper output, lower costs at vast Olympic Dam

[caption id="attachment_853005" align="alignright" width="600"] The Olympic Dam is the fifth largest copper mine in the world, and the No.1 uranium deposit. (Image courtesy of BHP Billiton)[/caption] World’s largest miner BHP Billiton (ASX, NYSE:BHP) (LON:BLT) has made a bold bet on...