UP TO 1400 workers will face uncertainty after resources giant BMA announced it would shut its Norwich Park mine.
Of those, 490 are permanent workers the company will try to redeploy to its other operations, its Saraji mine in particular.
The coking coal operation is partly owned by BHP Billiton.
A BHP spokesman said some staff would be given voluntary redundancies at the discretion of the company, but many may be able to find work elsewhere.
"The first obligation is to our direct employees," he said.
"Every effort will be made to redeploy them."
The Morning Bulletin is looking to talk to mine workers affected by this decision. If you know one or are one, please contact Kerri-Anne Mesner on 4930 4251 as late as 7.30pm tonight.