The company said the union had received the offer and must vote on it by November 4.

The country's Auditor General said conventions establishing mining companies include clauses that do not always guarantee the protection of the interests of the state

Adding in production from its stakes in El Abra and Anglo American Sur, Codelco's total production rose to 1.243 million tonnes to September.

China’s giant smelter sector churned out an average 105,000 tonnes per day in September, with year-to-date production up 3.3% on 2019.

Company said recovered inventories in China will give the producer more flexibility on sales going forward.

A group of investors has written to the boards of 78 mining companies to seek assurances about how they gain their social licence to operate.

Group EBITDA soared 182% to $922 million in the quarter ended September, compared with a year earlier.

Zambia was struggling with its ballooning debt before the pandemic and looks headed for a messy and protracted default.

Net profit for the three months through September climbed to $2.9 billion from $1.6 billion a year earlier.

Three species of black coral have been discovered on the seabed of the northern Pacific Ocean, an area where several countries have contracts to explore for metals including cobalt and nickel.

Newcrest's gold production fell to 503,089 ounces in the three months ended Sept. 30.

China Moly's annual production target for cobalt was set at 14,000-17,000 tonnes.