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    Rio Tinto Rincon lithium first shipment and $1.175bn loan: project notes for engineers

    March 10, 2026|

    Reviewed by Tom Sullivan

    Rio Tinto Rincon lithium first shipment and $1.175bn loan: project notes for engineers

    First reported on MINING.com

    30 Second Briefing

    Rio Tinto has shipped its first 200 tonnes of lithium carbonate from the Rincon brine project in Salta, Argentina, to Shanghai, marking the start of exports from a planned 60,000 t/y battery-grade operation. The project will ramp from a 3,000 t/y starter plant to a 57,000 t/y expanded plant due online in 2028, with full capacity targeted within three years and an expected 40-year life at about 53,000 t/y. Rio has secured a US$1.175 billion loan package from IFC, IDB Invest, Export Finance Australia and JBIC towards the US$2.5 billion expansion capex.

    Technical Brief

    • First commercial cargo comprised 200 tonnes of lithium carbonate trucked to the Port of Buenos Aires.
    • Rincon is a lithium brine operation in Salta province, within the high-altitude “lithium triangle” basin.
    • Rio Tinto acquired Rincon in March 2022 as part of its battery materials growth strategy.
    • Rincon has become Rio Tinto’s flagship lithium asset after shelving the Jadar hard‑rock project in Serbia.
    • Long‑term mine plan targets about 53,000 t/y lithium carbonate over a 40‑year operating life.
    • Construction of the main expanded plant, budgeted at US$2.5 billion, is already in progress.
    • Rio has applied for Argentina’s RIGI incentive scheme to secure tax and legal stability for the project.
    • Project financing package totals US$1.175 billion from IFC, IDB Invest, Export Finance Australia and JBIC.

    Our Take

    Among the 108 lithium- and lithium carbonate–tagged pieces in our database, Rincon’s 40‑year project life and 2028 expansion timeline put Rio Tinto at the long-duration, late-decade end of the pipeline, contrasting with several shorter-life spodumene projects now commissioning in Australia and Africa.

    The presence of multilaterals such as IFC, IDB Invest and Export Finance Australia on Rincon’s $2.5 billion expansion signals that, in Latin America, large brine projects backed by Tier‑1 sponsors like Rio Tinto are currently the ones able to secure structured financing despite softer lithium prices.

    With Jadar in Serbia stalled and Rincon now advancing in Salta, our coverage suggests Rio Tinto is effectively rebalancing its lithium growth options away from hard‑rock in Europe towards brine in Argentina, which could influence how other majors prioritise between EU permitting risk and South American brine development.

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    Prepared by collating external sources, AI-assisted tools, and Geomechanics.io’s proprietary mining database, then reviewed for technical accuracy & edited by our geotechnical team.

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