Australia is the world's largest lithium producer from hard-rock (spodumene) mining but has struggled to master downstream refining into battery-grade lithium hydroxide. The Tianqi-IGO joint venture's Kwinana refinery — designed for 24,000 tonnes per annum — faced persistent commissioning challenges and underperformance, with Tianqi terminating Phase 2 construction in January 2025 and IGO reporting low confidence in the asset by August 2025. Albemarle also exited its Australian lithium hydroxide plans, creating both a setback and an opportunity for local players.
Converting spodumene concentrate to battery-grade lithium hydroxide (LiOH·H₂O, ≥56.5% purity) involves complex multi-stage chemical processing: calcination at 1,050°C, acid roasting, leaching, impurity removal, and crystallization — each requiring precise control. The technology has been dominated by Chinese processors who refined it over decades with government support. Australia's attempts to replicate this domestically encountered a steeper learning curve than anticipated, with the Kwinana experience demonstrating that first-of-kind processing facilities need extended ramp-up periods.
Despite setbacks, the strategic imperative remains. Australia exports ~300,000 tonnes of spodumene concentrate annually, capturing perhaps $2,000/tonne, while battery-grade lithium hydroxide sells for $15,000-25,000/tonne. Mastering downstream processing would multiply the value captured domestically by 5-10x. The lessons from Kwinana's challenges are informing next-generation refinery designs with improved process control and lower capital costs, while the Critical Minerals Strategy provides policy support for continued investment in domestic refining capability.