BHP Billiton to slash copper production costs, increase output

[caption id="attachment_839828" align="aligncenter" width="600"] BHP and Rio Tinto’s Escondida copper mine in Chile's Atacama Desert is the world's largest copper-producing mine.[/caption] BHP Billiton (ASX:BHP), the world’s largest mining company, is making a bold bet on copper by deciding to ramp...