Crinum Mine employees have been notified by BHP Billiton Mitsubishi Allianceís (BMA) that longwall development work will begin to wind down at the underground mine near Emerald, starting this month.
The decision follows a detailed review of the mine plan and was based on a range of factors, which included the analysis of the reserve depletion with the mine coming to the end of its reserve life.
BMA Asset President Lucas Dow told CQ News the ramp down of development work will occur in two phases over six months and will impact approximately 100 roles.
It is expected that this will be completed by around April 2015.
"Apart from the development work ramping down, BMA will continue to operate the Crinum Mine, which employs over 400 people," Mr Dow said.
"It is well known that Gregory Crinum Mine is nearing the end of its reserve life, although no decision has been made on the future of the mine."
Consultation with employees, contractors and their representatives would commence in the coming week.
"These decisions are never easy and we understand the impact the early ramp down of development at Crinum Mine will have on employees, their families and local communities," he said.
"We will work with employees and contractors throughout the process and ensure everyone is treated fairly and with respect. We will also keep our community stakeholders informed throughout the process.
"I want to take this opportunity to thank employees and contractors who have worked in the development area of the Crinum Mine."