Source: South China Morning PostCopper prices have breached the US$10,000 per tonne mark for the first time since 2011 due to strong demand in China and the weak dollar – providing hopes for producers such as Zambia, which last year defaulted on its foreign debt, and the Democratic Republic of Congo.A tonne of copper on the London Metal Exchange was selling for US$9,963 after briefly exceeding US$10,000 on Thursday. The last time it fetched such a high price was in February 2011, when it sold for a high of US$10,190 per tonne…Read More