DeGrussa is located 900km north-east of Perth in Western Australia and, prior to its decommissioning, included the high-grade DeGrussa and Monty Copper-Gold Mines. Mining ceased in October 2022 and processing ceased in late May 2023 after a period of stockpile processing, with the final concentrate shipment completed in the first half of FY24.

DeGrussa is now in care and maintenance with its progressive rehabilitation to be undertaken over the coming decades. A multi-faceted process to divest discrete assets is also underway.