Xstrata is a mining production specialist. Net sales break down by family of products as follows:
- copper (42.3%): 747,000 tons produced in 2012;
- coal (31.9%): 88.1 million tons produced;
- zinc (11.6%): 981,900 tons produced;
- nickel (8.5%): 106.9 million tons produced;
- alloy (4.7%):...
