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A miner walks around Chuquicamata, the town located next to the largest open-pit copper mine in the world, 16 km from Calama, some 1600 km north of Santiago, in 2007. Chilean state-run mining group Codelco, the biggest copper producer in the world, was struggling Tuesday with a strike that has halved its output and is costing it 10 million dollars a day. |