BHP Billiton is engaging in further development of the heap leach process in order to improve the odds of success for its Olympic Dam expansion.

BHP Billiton CEO Andrew Mackenzie has announced that work on the heap leach process for uranium and copper extraction has achieved significant progress after the federal government gave the mining giant permission to conduct trials on site. The miner hopes the low-cost extraction process will help it to exploit uranium deposits at the Olympic Dam site in…