Chilean copper producer Antofagasta Minerals Plc ended 2018 on a high note exceeding its previously reported guidance. The company cited greater volumes mined at its operations as well as better ore grades at Centinela. In the fourth quarter, Antofagasta reported production of 220,000 metric tons (mt) of copper compared to 177,800 mt during the same period last year. That brought total production for 2018 to 725,300 mt, an increase of 3% over 2017.
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