Copper is just going. People used to work related to copper at less than 1 $/lb, actually much less. I trust that Chile will control expansion since they must make so much money and to maintain their long term capacity. In spite of the costs related to rebuilding activities from last year's earth cake, they must just doing great.
I suspect some of the nickel mining in places like Sudbury will start to focus more on the copper and just not nickel. In spite, the growth would be small and should not affect the marked.
Tau