留言内容:I work with computers http://silverdaddies.fun silver daddies Copper production rose 14% on year to 182,900 tons in the second quarter, in line with expectations, due to a 13% on-year rise in output from its Chilean Los Bronces mine and a 25% on-year rise in output from the Chilean Collahuasi mine, in which it owns a 44% stake. Copper was the company's second-largest contributor to earnings after iron ore, accounting for 25% of underlying Ebitda in 2012.