The besieged Mt Lyell mine has planned to restart operations next month.
According to its owner, Copper Mines of Tasmania (CMT), it is planning a restart at the operations from the end of the June.
Work at the site was suspended earlier this year, and miners stood down on half pay, after a series of fatal accidents at the mine.
In December last year two workers were killed after falling down a shaft.
Just over a month later another miner was killed when a mudslide ripped through the underground operation.
Now, after an uncertain future, it has received approval from WorkSafe Tasmania to recommence development at the end of June, and re-establish mining in late July after submitting changes to its mining methods at Mt Lyell.
"A new mining method is a significant change to mine design and operation, including the introduction of remote mining equipment and new technology to remove people from the risk of mud-rush," CMT's general manager Scot Clyde said.
"While this is good news for the bulk of our employees, the local community, and suppliers, it will significantly reduce ore production over the next two years, unfortunately this requires fewer employees," he added.
Around 64 positions at the mine will be affected, with a further 24 to go next year, dropping numbers down to approximately 240 at the site.
More than 300 CMT and contractor Barminco employees have been stood down on half pay since the third fatal incident at the site.
CMT is carrying out exploration drilling and feasibility studies to provide up ore at the mine and increase its lifespan.
"This is a major financial commitment by the company and buys time develop the new resource to extend the life of the mine," Clyde added.