Copper and silver are often skipped over in discussions of metals needed for the green economy, with battery metals like lithium, graphite, cobalt and nickel hogging the limelight.

Both the Tia Maria project and the Las Bambas copper mine have been heavily opposed by local communities.

The union says BHP is looking to reduce benefits and production bonuses while extending working hours.

The collaboration will aim to increase Fortune's cobalt and bismuth refining operations to process co-product streams of the minerals recovered from the Kennecott smelter.

The Chinese official manufacturing gauge is expected to signal expansion for the first time since March.

ACG had planned to buy a nickel mine and a copper mine from Appian Capital.

Earlier this month, some members of Panama's congress visited First Quantum's copper mine to resolve doubts over the contract.