The Western Mineworkers' Alliance (WMWA) has been advised that BHP is proceeding with the wind-down of operations at its Yandi mine site in the Pilbara, as the ore body nears depletion.
The company has begun informing its workforce, approximately 650 direct employees and 200 contractors, that operations will be scaled back over the next year before ceasing altogether.
WMWA, representing more than 100 members at Yandi, said the announcement would come as a major blow to workers, their families, and the surrounding communities that have long supported the site.
"This is a deeply unsettling time for hundreds of hardworking people who've given years of service to BHP," said WMWA spokesperson Brad Gandy.
"We understand that mine closures are sometimes unavoidable, but how BHP manages this process will be the true test of their commitment to their workforce."
The union said it would hold BHP to account for ensuring that the wind-down process is fair, transparent, and consultative.
"We'll be demanding that every affected member is given a genuine choice—whether that's redeployment within BHP or a fair and decent redundancy package," Mr Gandy said.
"Workers deserve clarity, respect, and the ability to plan their futures."
WMWA has confirmed it will meet with BHP in the coming weeks to ensure that workers' concerns are central to all discussions about the site's wind down.
"Our priority is making sure no one is left behind," Mr Gandy said.
"We'll be standing shoulder-to-shoulder with our members at Yandi every step of the way."
The union has also called on BHP to engage early with local communities and governments to mitigate the social and economic impacts of the closure.
"This mine has supported hundreds of families and regional businesses for decades," Mr Gandy said.
"It's critical that BHP works with all stakeholders to ensure the transition is handled responsibly and humanely."
