StockMarketWire.com - Copper producer Antofagasta downwardly narrowed the range of its annual output guidance following political unrest in Chile.

Copper production for the year through December was now expected at between 750k and 770k tones, compared to previous, wider range of between 750k and 790k tonnes.

Antofagasta said that all of its mines in Chile were now back in operation.

Disruptions of the mines' supplies mainly affected Los Pelambres, which had suffered a blocked access road.

The blockage, combined with damage to ancillary infrastructure outside Los Pelambres' perimeter, was estimated to hit output by 10k tonnes of copper, including the 5,000k previously disclosed.

At Antucoya, meanwhile, labour negotiations had been successfully concluded, with the union ending the strike which started on 16 October.

The impact on copper production was estimated at a further 4k tonnes.

At 2:07pm: [LON:ANTO] Antofagasta PLC share price was +6.6p at 896.8p



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