Interesting.... Copper miner Freeport-McMoRan said it would look at cutting output, becoming the first major producer to publicly consider action as prices collapse to a six-year low in the face of increasing supply.

They go on to state: ....potential adjustments to mine plans and future copper production to “preserve valuable resources for anticipated improved market conditions in the future”.

http://www.ft.com/intl/cms/s/0/82e78ee2-3549-11e5-bdbb-35e55cbae175.html#axzz3hE0dAAoi

I find it weird how many analyst have this view: "It could be viewed as the first step to tighten an oversupplied market and move copper prices up, Jessica Fung, an analyst at BMO Capital Markets, said. "

It is weird to me because the copper market is NOT over supplied like iron ore or oil - it only has the potential of being over supplied if the economy crashes. That is quite different.