China Faces Dual Challenges in 2010: UN Expert

ESTSANTIAGO, March 3 (Reuters) - Chile's Codelco, the world's top copper producer, is exporting normally after the devastating earthquake that hit the country over the weekend, a company official told Reuters on Wednesday. 
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The official, asking not to be named, said there were no power supply disruptions at any of its mines in the days after the quake, despite aftershocks and two state-run oil refineries that are shut down.&nbsp; 
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