Mitsubishi Materials to Halt Copper Concentrate Processing at Onahama Smelter by March 2027
Mitsubishi Materials will cease copper concentrate processing and associated smelting operations at its Onahama Smelter and Refinery by end-March 2027, booking a 21 billion yen impairment loss.
Mitsubishi Materials announced it will halt copper concentrate processing and related smelting operations at its Onahama Smelter and Refinery by the end of March 2027.
The company expects a 21 billion yen impairment loss-roughly $132 million-in the current fiscal year’s fourth quarter, tied to fixed assets at the facility.
