For the ones that are not convinced From Goldman Sachs http://www.investorideas.com/news/2012/mining/10193.asp
IP: We certainly sit in the camp that believes the commodity boom is not over in the sense that volume growth will continue. Still, we've probably seen the best of most metal prices already and each of the metals will react differently over the next few years. For example, in iron ore, we expect the seaborne-trade market to be in oversupply probably in two or three years' time. Copper, in contrast, could well have upside remaining because China's demand will grow. Even though its growth rate has declined, it's off that much larger base, so, volume growth for copper is still very much intact--and the same goes for seaborne-traded iron ore.
MGO Price at posting:
16.0¢ Sentiment: LT Buy Disclosure: Held