The union at Alcoa's aluminium operations said it was meeting with the company again on Wednesday to try to resolve a strike that has lasted more than six weeks.
BHP Billiton said on Monday its Kalgoorlie nickel smelter has been closed after a fire that broke out over the weekend and the plant will remain shut while it assesses the damage.
Malaysian media reported the newly-elected coalition government will shortly begin a three month evaluation of the company's rare earths processing operations in the province of Kuantan.
But the court upheld part of the previous ruling requiring the miner to re-apply for its environmental licensing and start a community consultation process.
Blockchain technology and the smart contracts it enables are the next innovations the mining industry needs to adopt in order to improve efficiencies and increase market transparency, a paper published by global law firm White & Case says.