Chile's Antofagasta looks to expand mining operations in January

SANTIAGO (Reuters) - Antofagasta Plc expects its board to approve a $1.3 billion (1.01 billion pounds) expansion of its Los Pelambres copper mine before the end of the year with construction starting in January, the Chilean miner's chief executive officer said on Wednesday.The London-listed company said in February it had received environmental approval for the three-stage infrastructure upgrade, unveiled in 2016, that seeks to maintain the mine's copper output at approximately 400,000 tonnes..