[Chilean drought forces Antofagasta to lower its copper production target] Chilean miner Antofagasta (London Stock Exchange symbol: ANTO)) said on Thursday that Chile's water shortage forced it to cut its copper production target this year as climate change exacerbated a decade-long drought. The miner now expects to produce 710000-740000 tonnes of copper this year, down from a previous forecast of 730000-760000 tonnes.