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Resouro PEA points to $1B potential rare earth and titanium project

Staff Writer | June 15, 2026

Resouro Strategic Metals (TSXV: RSM) has completed a preliminary economic assessment (PEA) for a starter operation at its flagship Tiros rare earths and titanium project in Brazil that it says confirms the potential for a billion-dollar operation.


Prepared by a team led by Norda Stelo, the PEA outlines a post-tax net present value (at 8% discount) of $714.9 million and a post-tax internal rate of return of 44.2%.


Tiros, located in Minas Gerais, is one of the world’s largest deposits in combined rare earths and titanium resources. Last year, the measured and indicated resource increased by almost 37% to 1.4 billion tonnes at 12% titanium dioxide (TiO₂) and 4,000 parts per million total rare earth oxides (TREOs). These include measured resources of 367 million tonnes and indicated resources of 1 billion tonnes, both grading 12% TiO₂.

The resource update, the company said at the time, marked a significant milestone as it established the Tiros project as home to one of the world’s largest and most significant resources of both titanium dioxide and rare earths.

‘Robust economics’

The study envisions a proposed 500,000-tonne-per-annum operation producing approximately 90,000 tonnes of TiO2 concentrate and 3,636 tonnes of TREOs annually over an initial 20-year mine life.

The project benefits from low-strip, near-surface mineralization, conventional processing and a dual-revenue stream from titanium dioxide concentrate and mixed rare earth carbonate products, the company said, estimating recovery rates of 68.7% and 67% for these minerals respectively.

The proposed starter operation targets less than 1% of the project’s 1.4-billion-tonne resource, leaving substantial scope for future expansion and long-term growth, it added.

“The project’s robust economics are based on high levels of total rare earth oxides (TREO) and titanium oxide grades,” Resouro CEO Christopher Eager said in a news release.

“We believe that starting with a small high-grade operation will minimize the social and environmental impacts, reduce the time to production and significantly de-risk the project,” Eager continued. “Our goal with this staged approach is to support future financing and provide a pathway for larger-scale development.”