Technology targets a revival in copper refining

Banksia Minerals, a Brisbane-based start-up, is commercialising technology to reduce copper processing costs and energy intensity through a hydrometallurgical route. Australia's copper output declined in 2025, widening the gap between demand and shrinking smelting capacity. The country's smelting capacity is tightening, while downstream refining capacity remains in place, making it reliant on export markets for refining. Australia houses around 100 million tonnes of copper reserves, but its ability to process copper domestically is decreasing.