Rio Tinto Commits $2.5 Billion to Expand Rincon Lithium Project in Argentina

Rio Tinto (ASX: RIO; LSE: RIO) has announced a significant $2.5 billion investment to expand the Rincon lithium project in Argentina, marking a substantial step in the company’s commitment to building a world-class battery materials portfolio. This expansion will increase Rincon’s capacity to 60,000 tonnes per year of battery-grade lithium carbonate, positioning Rio Tinto as a key player in the rapidly growing lithium market.


Key Highlights of the Expansion

  • Increased Production Capacity:
    • Rincon will grow from its current 3,000-tonne starter plant to include a 57,000-tonne expansion plant, bringing total capacity to 60,000 tonnes annually.
    • The project’s mine life is estimated at 40 years, ensuring a stable and long-term supply of lithium.
  • Construction and Timeline:
    • Construction of the expanded plant is set to begin in mid-2025, with first production expected in 2028.
    • A three-year ramp-up period will follow, bringing the operation to full capacity.
  • Economic Impact:
    • The expansion is expected to create significant job opportunities and boost local businesses in the Salta province, aligning with Argentina’s ambitions to become a leading global lithium producer.

Sustainable and Efficient Technology

The Rincon project leverages Direct Lithium Extraction (DLE) technology, a cutting-edge process that:

  • Halves water usage compared to traditional methods, addressing a critical environmental concern.
  • Reduces waste and ensures consistent production of high-quality lithium carbonate.

Rio Tinto’s Strategic Vision

Jakob Stausholm, Rio Tinto’s Chief Executive, emphasized the project’s alignment with the company’s long-term strategy:

“The energy transition’s demand for lithium underpins our investment in Rincon. By developing this tier 1 resource at scale and the low end of the cost curve, we are positioning ourselves to be a global leader in lithium production.”

He also highlighted Rio Tinto’s commitment to:

  • Meeting the highest ESG standards.
  • Building mutually beneficial partnerships with local communities and the Salta province.
  • Leveraging Argentina’s supportive economic policies, which include tax benefits and regulatory stability under the Incentive Regime for Large Investments (RIGI).

Global Impact and Market Position

Located in the ‘lithium triangle’—home to some of the world’s richest lithium reserves—Rincon is a large, long-life asset with Ore Reserves 60% higher than initially assumed. The project’s first-quartile cost curve position ensures it remains competitive and profitable throughout market cycles.


Argentina’s Role in the Lithium Revolution

This investment underscores Argentina’s emergence as a key player in the global lithium market, bolstered by:

  • Economic reforms encouraging foreign investment.
  • A skilled workforce and abundant natural resources.
  • RIGI’s long-term protections, such as reduced tax rates, accelerated depreciation, and regulatory stability for 30 years.

Conclusion

With this expansion, Rio Tinto is not only strengthening its presence in the lithium market but also contributing to the global energy transition. The Rincon project demonstrates the company’s ability to combine innovation, sustainability, and community engagement, securing its role as a leader in the battery materials revolution.