he restructure follows a review by the HVO management team now operating the mine on behalf of Yancoal and Glencore, according to a spokesman for Glencore.
"The review has identified opportunities to reconfigure the operations, reducing the amount of equipment required," he said.
"Discussions on the restructure will be open and transparent, involving all HVO areas of operation."
The Construction, Forestry, Mining and Energy Union said it had been called to meetings on Tuesday with managers at HVO.
CFMEU northern district president Peter Jordan reportedly told the ABC that the union was advised that 116 positions could be made redundant at the mine.
"The concern for us is that they advised us when they took over the job, Glencore, in May that they were doing a 90-day review and that they would sit down and have discussions with us about that," he reportedly said.