BHP (NYSE:BHP) has announced an investment of more than 840 million Australian dollars ($556 million) into growth-enabling copper projects at Olympic Dam in northern South Australia. The funding will expand mining access, upgrade smelting capacity, and reinforce the foundations of the company’s Copper SA operations.“BHP is the largest producer of copper in the world, and we expect to grow our copper base from 1.7 million tons to around 2.5 million tons per annum,” Chief Operating Officer Edgar Basto said. “ ...