Rio Tinto and Codelco have joined forces to develop the high-grade lithium deposits at Chile’s Salar de Maricunga, marking a significant step in the global push for sustainable energy resources. The partnership aims to leverage cutting-edge Direct Lithium Extraction (DLE) technology to efficiently and responsibly extract lithium, a critical component for electric vehicle batteries and renewable energy storage.
The Salar de Maricunga is renowned for its rich lithium brine deposits, second only to Chile’s Salar de Atacama in concentration. This salt flat’s unique geology offers high lithium grades and favorable extraction conditions, making it an attractive site for lithium production. With an estimated 2.9 million tonnes of lithium carbonate equivalent, the project promises to boost Chile’s position as a global lithium supplier while supporting environmental stewardship through advanced extraction methods.
Rio Tinto’s $900 million investment is structured to support the project’s development in phases, beginning with $350 million for detailed studies and resource validation. Following a positive investment decision, an additional $500 million will fund construction, with a final $50 million contingent on achieving first lithium production by 2030. This phased approach minimizes risk while aligning both companies’ interests toward timely and efficient project delivery.
This collaboration not only strengthens Chile’s lithium industry but also exemplifies how innovation and strategic partnerships can drive the transition to cleaner energy. By combining Codelco’s local expertise with Rio Tinto’s technological capabilities, the Maricunga project is poised to become a model for sustainable lithium production worldwide.
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