Workers said will push forward with the nearly month-long strike that has shut down the mine in Chile.

Copper volumes on world exchanges are climbing again as a buoyant economic recovery from covid-19 in top metals consumer China spurred speculators to pile back into the market.

Escondida saw production drop off by 6% year-on-year, to 94,100 tonnes.

Underground development at the copper project in the DRC totalled 2,172 metres in October.