The union representing miners fears further large-scale job losses in the Queensland coal industry after the closure of another mine in the Bowen Basin.
Rio Tinto says the coal seam at Blair Athol has been mined out and it will close sooner than expected - at the end of the year.
The company says 140 jobs will go at the mine which had scheduled to close in 2016.
Steve Smyth from the CFMEU says it will hurt Clermont.
"It's going to have an impact on them directly and on the services," he said.
"Time will tell I suppose but it's not a good time." Price pressure Michael Roche from the Queensland Resources Council (QRC) says hopes of keeping the mine open were dashed by low thermal coal prices.
"We need to face up to the reality that we're not immune from the difficulties being experienced globally," he said.
"Our customers are in recession and prices are depressed so it is not an easy time for the coal sector at the moment.
"The days of being able to keep mines going forever and ever are behind us." Mr Smyth says jobs are also going at other sites.
"We're seeing across the board that contractors and labour hire people are unfortunately being laid off," Mr Smyth said.
It is believed hundreds of jobs could be lost as X-Strata restructures its Oaky One and Oaky North mines, and at least 35 contractors lost their jobs this week.
'Still strong' However, State Treasurer Tim Nicholls insists the resources sector is strong.
"I don't think that it's any indication of any other weaknesses in the market or any other significant structural problems," Mr Nicholls said.
"We have very big prospective mines occurring in the Galilee Basin in places like Alpha and we have international investors like GVK and Adani out of India.
"We have significant interest from China - so we're confident that the Queensland resources sector will continue to be a mainstay of the Queensland economy." Uncertainty Deputy Mayor Dale Appleton says the company has been upfront about the mine's future, but it is difficult to guage how the closure will affect Clermont.
"A few of those jobs will stay with the new Rio Tinto mine they've got going there - I think there's 100 to 120 people working at that mine,' Councillor Appleton said.
"A lot of those people will be given packages and I think a lot of them will stay in that area - they are local people.
"There will be a few jobs that will get lost and it will have an impact on Clermont - just how big I'm not sure." Councillor Appleton says the earlier closure has created uncertainty in the town.
"It is a worrying point but it gets down to business - the coal mines have to make money too."