Rio Tinto will suspend development of its long-delayed Jadar lithium project in Serbia, effectively mothballing what was once slated to become Europe’s largest lithium mine. The decision, first reported by Bloomberg and later confirmed by a company spokesperson, places the nearly $3-billion project into “care and maintenance” as the miner seeks to reduce spending and refocus its lithium strategy.
The move ends Rio’s two-decade effort to unlock the massive Jadar deposit, discovered in 2004 and estimated to produce 58,000 tonnes of battery-grade lithium carbonate annually. Despite the project’s strategic importance for Europe’s battery supply chain, Jadar has repeatedly stalled amid regulatory hurdles, political uncertainty and strong community opposition. Serbia revoked Rio’s licence in 2022 over environmental concerns and only reinstated it last year, but permitting made little progress.
In the internal memo cited by Bloomberg, Rio said it could no longer justify the level of investment given the limited advancement of the project. Earlier this year, the company raised Jadar’s cost estimate to nearly $3 billion, citing the need to meet stringent EU environmental and human rights standards.
The suspension is part of broader cost-cutting measures under new CEO Simon Trott, who has introduced restructuring efforts and workforce reductions across the company. With Jadar shelved, Rio is expected to concentrate its lithium ambitions on South America, including Argentina’s Rincon project and joint ventures in Chile.
Analysts say the decision underscores Rio’s pivot away from hard-rock assets inherited through its merger with Arcadium, and some expect those projects could be sold. The halt also deals a blow to EU plans to secure domestic lithium supply, as Jadar was projected to cover nearly 90% of Europe’s current demand.
