Resouro boosts titanium resource by 37% at Tiros project in Brazil

Staff Writer | April 9, 2025 | 4:37 pm Exploration Latin America Rare Earth Specialty Minerals

Tiros project in Brazil. Image from Resouro Strategic Metals.

Resouro Strategic Metals (ASX: RAU; TSXV: RSM) announced Wednesday an update to the Tiros titanium and rare earth elements mineral resource estimate (MRE) for the central block of its Tiros project in Brazil.

Measured and indicated resources increased by almost 37% to 1.4 billion tonnes at 12% titanium dioxide (TiO₂) and 4,000 parts per million total rare earth oxides (TREO). These include measured resources of 367 million tonnes and indicated resources of 1 billion tonnes, both grading 12% TiO₂.

The total resource contains 165 million tonnes of TiO₂ and 5.5 million tonnes of TREO at a magnet rare earths oxide (MREO) ratio of 27%, for 1.5 million tonnes of MREO.

This MRE update, the company said, marks a significant milestone as it establishes the Tiros project as home to one of the world’s largest and most significant resources of both titanium dioxide and rare earths.

It also highlights a very high-grade mineralization zone, which will be the focus of the company’s initial scoping study and subsequent feasibility studies, along with the related economic assessments, Resouro added.

“The Tiros project continues to deliver amazing results, in terms of large tonnage of high TiO₂ and TREO grades within continuous near surface layer of friable material with constant grade and thickness,” Resouro executive chairman Chris Eager said in a news release.

“The next step is to work toward a proven and probable minable reserves from the 1.4 billion tonnes measured and indicated resource,” Eager said.

“The flat-lying layer of friable material at Tiros translates to ease of mine planning with no drilling or blasting and a low stripping ratio. This facilitates environmentally friendly cut and fill mining with continuous rehabilitation equating to low mining costs with consistent supply of tonnes and grade to a processing plant.”

By market close in Toronto, Resouro Strategic Metal’s stock was down 5%. The company has a C$17.6 million ($12.4 million) market capitalization.