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Chuqui underground hits 1Mt

The US$5.6 billion Chuquicamata underground copper mine, which Chile’s state copper company Codelco started-up less than a year ago, has achieved the extraction of one million tonnes of ore, ahead of plan.

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Schematic of Chuquicamata block cave

The underground mine, which aims to extend the life of the centennial Chuquicamata copper deposit by 40 years, is reaching production rates of about 20,000 tonnes per day and the company has sunk some