THE coal miner's union has told owners of an underground mine south of Blackwater in Central Queensland to be open with workers about an apparent restructure.
The Construction Forestry Mining and Energy Union wants the China-owned Caledon Resources to discuss potential changes with its workers.
District vice president Glenn Power said workers had concerns.
"Our members have reported that management have flagged a number of possibilities at the mine, some of which are concerning giving the lack of consultation with workers and the union," Mr Power said.
Caledon is also developing its Minyango project nearby, another underground coal mine that would export via Wiggins Island terminal in Gladstone.
The company was bought by Guandong Rising Assets Management - a Chinese state-owned investment firm - in August 2011.
Management did not respond to requests for comment before deadline on Monday.
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