CHART: Covid-19 disrupts $6.9 billion of global mining output

The performance was due in part to a 219.4% production boost from Glencore' Antapaccay.

Mining companies and industry groups have complained about the extensive permitting process in Chile.

According to company estimates, South Crofty has the fourth-highest-grade tin mineral resource globally.

For the wider mining industry, the story of First Quantum in Panama has become a cautionary tale.

Brazil's Para state has won its appeal to overturn a previous court ruling that had reinstated the mine's operating licence.

Nornickel intends to remain a "reliable supplier of products" and will continue to fulfil all its contractual obligations, said the company.

The miner reported total preliminary output of 940,000 ounces of gold and 40,000 tonnes of copper in the three months ended March 31.

The company expects “some conclusions” this year from negotiating an operational tie-up between its Andina mine and Anglo American's adjoining Los Bronces.

If developed, the mine would supply more than a quarter of US copper demand for the renewable energy transition.