IGO's board is siding with its CEO-elect Ivan Vella after concluding no information was compromised as a result of his actions.

The Canadian miner has also halted its massive copper mine in Panama as the country's Supreme Court debates whether to cancel the mining contract.

Canada's First Quantum Minerals sent two notifications of intent to start an arbitration process against Panama.

Protesters attacked workers leaving the Cobre Panama mine early Sunday.

When the International Copper Study Group met last October, it was expecting a market surplus of 155,000 tonnes in 2023. In May, the group changed that to a 114,000-tonne deficit.

In 25 of the 114 rivers surveyed by the study, more than half of the future salmon habitat would lie within 5 kilometres of a mining claim.

Nickel prices in London are heading for a 46% fall this year, the largest slump since the financial crisis in 2008.