Violent protests in the country have killed at least 66, posing risks to the activity of other large mines like MMG’s Las Bambas and Freeport-McMoRan’s Cerro Verde.

Namesake project in the Antofagasta region now has measured and indicated oxide resources totalling 200 million tonnes grading 0.45% copper for 900,000 tonnes of metal.

The exceptional blue diamond found a buyer after a four-minute bidding battle between three telephone bidders and one bidder in the room.

On-warrant copper stocks in LME registered warehouses climbed to a six-month peak.

The miner, whose shares collapsed this week on the closure of its Minto copper-gold mine in Canada, has engaged insolvency advisers.

Scale-up and roll-out of technology first piloted at the University of Birmingham forms the basis for the UK’s first full scale remanufacturing facility for rare earth magnets.