Rio Tinto and ENAMI Join Forces for Lithium Expansion in Chile’s Atacama Region

Rio Tinto has taken a major step toward expanding its lithium footprint by partnering with Chile’s state-owned Empresa Nacional de Minería (ENAMI). The two companies will jointly develop the Salares Altoandinos lithium project, located in the resource-rich Atacama region.

Rio Tinto Secures 51% Stake in High-Potential Lithium Asset

Under the new partnership, Rio Tinto will acquire a controlling 51% stake in the Salares Altoandinos lithium project. ENAMI will retain a 49% interest. This agreement remains subject to binding contracts, regulatory approvals, and standard closing conditions.

This deal strengthens Rio Tinto’s strategic position in the Lithium Triangle, a globally significant region for lithium production. The company now holds lithium assets across South America, Canada, and Serbia, following its recent acquisition of Arcadium Lithium.

According to Jakob Stausholm, CEO of Rio Tinto, the project could become a world-class lithium development. He emphasized the importance of supporting Chile’s leadership in minerals critical to the global energy transition.

Partnership Supports Sustainable Lithium Development

This is not Rio Tinto’s first move in Chile. The company recently partnered with Codelco, Chile’s largest copper producer, to develop another lithium project at Salar de Maricunga. In that joint venture, Rio Tinto will fund development costs for a 49.99% stake, while Codelco retains management control.

Rio Tinto’s lithium strategy reflects its commitment to sustainable mining. The company aims to reduce freshwater use and minimize environmental impact through advanced processing methods and brine reinjection technologies.

In Argentina, Rio Tinto is also scaling up lithium operations through large integrated hubs. Projects such as Rincon, Olaroz, Fenix, Sal de Vida, and Cauchari aim to share infrastructure and improve cost efficiency.

With this partnership, Rio Tinto reinforces its ambition to be a leading supplier of battery-grade lithium — essential for electric vehicles and renewable energy systems.

At SuperMetalPrice, we continue to track Rio Tinto’s global strategy as it reshapes the future of lithium supply through strategic alliances and sustainable innovation.