COPPER

Antofagasta's copper, silver output fall in March quarter

Lower grades impact, although full-year guidance kept unchanged

Lower grades at Antofagasta's Los Pelambres mine partly hindered production

Lower grades at Antofagasta's Los Pelambres mine partly hindered production

Copper output fell 10.5% year-on-year to 153,800 tonnes, although Antofagasta CEO Iván Arriagada said copper production was expected to increase as grades improved during the year and into 2019. Lower...

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