RE: China and copperPerhaps a strategy that could be useful is to have a core position which you don't touch (unless something severe is on the horizon) and then have another position that you can trade in and out. jmho.
As for projects sold here are just a few that I found with a quick search. A couple are not specific sales but large investments done on copper projects. I'm sure there are many more...
P-Air
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Sale of the E1 and Monakoff copper tenements in north west Queensland, Australia to
Xstrata Copper for a cash purchase price of AUD175 million was approved.
April 2011
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TORONTO/TOKYO, May 16 (Reuters) - Canadian copper miner Quadra FNX said it has agreed to form a joint venture with Japan's Sumitomo Metal Mining and Sumitomo Corp to develop its Sierra Gorda copper-molybdenum project in Chile. $2.9 billion project,
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Glencore Agrees to Buy Peru Copper Project - $475M - June 2011
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Kazakhmys Secures $1.5bn Loan for Copper Project - june 2011
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Grupo Mexico to Invest $1.9bn for Copper Expansion - Feb 2011
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Inment to Acquire Interests Worth $552m in Spanish Copper Mine December 2010