Rio Tinto Lithium Capacity Expansion Targets 200,000 t/yr by 2028

Rio Tinto, Lithium mining

Rio Tinto lithium capacity expansion is moving into a much larger phase. The miner expects lithium carbonate equivalent capacity to reach 200,000 t/yr by 2028. That would be more than triple the 57,000t produced in 2025. As a result, Rio Tinto lithium capacity expansion is becoming a major growth story in the global lithium market.

This matters because Rio Tinto now sounds more committed than before. The company had previously linked the target to market conditions and returns. It now says all in-house projects remain on track. Therefore, Rio Tinto lithium capacity expansion is shifting from conditional ambition to active execution.

The company also sees stronger demand support from battery storage. Management said battery energy storage systems are becoming a fast-growing demand pillar. That trend is now outpacing electric vehicle growth. Consequently, battery storage lithium demand is strengthening the case for faster capacity buildout.

Rio Tinto Lithium Projects in Argentina and Canada Drive the Growth Plan

Rio Tinto lithium projects in Argentina are central to the near-term ramp-up. A 10,000 t/yr expansion at Fenix and the new 15,000 t/yr Sal de Vida project should lift 2026 output to 61,000-64,000t LCE. Both projects are already mechanically complete and moving through commissioning. As a result, Rio Tinto lithium projects are starting to convert capital spending into real production growth.

Rincon is another major part of the plan. Its 3,000 t/yr starter plant is progressing well and should reach full capacity by year-end. Once fully developed, Rincon is designed for 60,000 t/yr. Therefore, Rio Tinto lithium capacity expansion has meaningful scale beyond the first Argentina assets.

Canada also matters more now. Rio Tinto increased its stake in Nemaska to 53.9pc and took direct management control. The company wants to build an integrated lithium chain in Quebec from mining to refining. Meanwhile, Nemaska’s mine is 60pc complete and still targets first production in 2028.

Battery Storage Lithium Demand and Chile Exposure Broaden the Strategy

Battery storage lithium demand gives Rio Tinto a broader demand base than EVs alone. That is important because it reduces reliance on one single end market. The company now sees storage as a consistent source of future lithium consumption. As a result, Rio Tinto lithium capacity expansion looks better aligned with changing battery market dynamics.

The strategy also reaches beyond Argentina and Canada. Rio Tinto expects its agreements with Codelco and Enami in Chile to close in the first half of 2026. Those deals would give the company access to two major untapped lithium resources. Therefore, Rio Tinto lithium projects are expanding across several of the world’s most important lithium regions.

Capital spending confirms the seriousness of the push. Rio Tinto spent more than $1bn on lithium expansion projects in 2025. That level of investment shows lithium is becoming a more meaningful business line inside the group. Consequently, lithium carbonate equivalent capacity is no longer a side opportunity for Rio Tinto.

The Metalnomist Commentary

Rio Tinto is no longer testing lithium. It is building a serious multi-region platform around it. The most important signal is not only the 200,000 t/yr target. It is that battery storage demand now gives the company a stronger reason to keep scaling aggressively.