About 85% of members of USW Local 6500 voted in favour of Vale’s latest five-year contract offer.

The administration has said it will work with all players in the mining sector to create a new deal that will address "social profitability."

Annual top-ten list of the largest US-based mining companies ranked by market capitalization

Kamoa-Kakula is expected to produce between 80,000 and 95,000 tonnes of copper in 2021.

Escondida, the world's largest copper mine, saw production fall 21.6% year-on-year to 82,900 tonnes.

The five-year agreement includes "significant monetary improvements for existing members."

China’s imports of unwrought copper have also been trending lower since the sharp recovery from the pandemic amid stimulus spending in the middle of last year.

For consumers and economists hoping commodities inflation will soon subside, the aluminum market delivered some discouraging news on Monday.