Victoria moves to build homegrown antimony processing - Australian Mining

Victoria is planning to build domestic antimony processing capacity. The state has identified antimony as a critical mineral for the energy transition and is moving to process it locally rather than rely entirely on imports.

Where this fits

Antimony is essential for battery chemistry, particularly in lead-acid batteries used for grid storage and vehicle starting systems. Australia holds significant antimony reserves but has historically exported raw ore while importing processed material, ceding control of a supply chain to foreign processors. This move directly addresses the sovereignty and materials pressure on Australia's energy transition: a renewables-heavy grid requires vastly more battery storage than a firm, dispatchable grid does, multiplying demand for materials like antimony across the supply chain.

What it means

Domestic processing reduces immediate dependence on foreign refineries and keeps some margin of processing sovereignty within Australia. However, the scale of demand from a large-scale battery build-out for renewable firming will still require either massive new processing infrastructure or continued reliance on imports of processed material from countries with cheaper labour and lower environmental standards. Australia is attempting to solve a materials bottleneck created by the design choice to firm a renewables grid with batteries rather than with firm generation sources like nuclear, which require no antimony for operation. Building processing capacity is necessary; it does not resolve the underlying fact that a battery-firmed grid demands exponentially more of these minerals than a grid with firm, energy-dense generation does.