Tiros Project
With a Maiden JORC Mineral Resource Estimate of 1.7billion tonnes, our Tiros Project is one of the world’s largest and highest-grade undeveloped Titanium and Rare Earth Elements (REE) deposits. It positions us as a significant player in the rare earth elements and titanium markets.
Key Project Highlights
Exploration Area with Expansion Potential
- >The Tiros Project encompasses 28 mineral rights covering approximately 497km2 and organised into four distinct blocks.
- 144 holes have been drilled covering a total of 7,695 metres.
- Despite its vast area, the recent Maiden Mineral Resource Estimate (MRE) has assessed only 7% of the tenements, demonstrating the significant growth potential.
- The deposit is homogeneous in nature with consistently high-grade results. This includes step-out drill holes up to 35km away from the Central Block JORC resource, suggesting that much of the project’s potential is yet to be unlocked.
Drilling & Resource
1.7 Billion Tonne Resource with High-Grade Rare Earths and Ultra High-Grade Titanium Dioxide:
Average grades include 3,900ppm Total Rare Earths Oxides (TREO), 1,100ppm Magnetic Rare Earths Oxides (MREO) and 12% titanium dioxide (TiO2).
An ultra-high-grade domain within this resource contains 120 million tones at 9,000ppm TREO, 2,400ppm MREO and 23% TiO2), showcasing the deposit’s exceptional value.
Competent Person Statement
The information in this announcement that relates to Exploration Targets, Exploration Results and Mineral Resources is based on, and fairly represents, information compiled by Mr Simon Mortimer, a Competent and Qualified Person and registered professional geologist (FAIG #4083) with experience in geology, mineral exploration, geological modelling, mineral resource estimation and classification, and database management. Mr Mortimer has worked alongside Mr Luis Oviedo, a Competent and Qualified Person and registered professional geologist (Chliean comisión of mines, number 013) with domain experience in Rare Earth Element deposits. Mr Oviedo and Mr Simon Mortimer are consultants for Atticus Geoscience and between them have sufficient experience that is relevant to the style of mineralisation and type of deposit under consideration and to the activity being undertaken to qualify them as Competent Persons as defined in the 2012 Edition of the ‘Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves’ and as Qualified Person under the National Instrument 43-101 Standards of Disclosure for Mineral Projects. Mr Luis Oviedo and Mr Simon Mortimer consent to the inclusion of this information in this announcement of the matters based on his information in the form and context in which it appears.
Metallurgical Testwork
A comprehensive Metallurgical Testwork Program is currently underway:
- Resouro is partnering with premium laboratories to conduct standard and high-recovery tests on samples from the central block.
- Metallurgical tests on representative samples from the Tiros ore have shown highly encouraging results, with potential to achieve industry-leading extraction rates, including 96.2% for high-value magnetic rare earth elements (MREE).

Competent Person Statement
Tier-one Mining Jurisdiction with an established Infrastructure
Resouro holds a 90% interest in the Tiros Project though its wholly-owned Brazilian subsidiary, Tiros Minerais Estratégicos Mineração Ltda.

Strategic Position:
The Tiros Project is located in the mining-friendly state of Minas Gerais, Brazil, benefiting from established road, rail, power and water infrastructure, along with access to deep-water ports that can support bulk-mining operations.

Proximity to a Qualified Workforce:
The region’s infrastructure is supported by a qualified local workforce, essential for the development and operational efficiency of the project.
Regional Geology
Geological Background
- Located within the Capacete Formation, which extends over 71km in length, the Tiros licenses cover the prospective areas with the greatest exploration potential.
- The Tiros deposit was formed from the deposition and erosion of volcaniclastic rocks in the Alkaline province of Alto Paranaiba.
- Mineralization at the Tiros project is the result of a lateritic process that enriched epiclastic rocks, along with the erosion products of volcanic rocks enriched in titanium and rare earth elements. The rare earth elements and titanium mineralization are primarily hosted in highly weathered sandstones and conglomerates of the Capacete Formation, belonging to the Mata da Corda Group.
Ionic Clay & Anatase
- Titanium mineralization in the Tiros deposit is mainly associated with the mineral anatase, which originated from the alteration of perovskite (CaTiO3). This alteration process occurred near the surface, where meteoric waters caused the calcium ion to dissolve, leaving the anatase crystal with voids.
- These voids created by the weathering process allowed for the migration of rare earth elements into nearby ionic clays, which were crucial for hosting these elements in the deposit. This geochemical interaction plays a significant role in enhancing the concentration and economic viability of the rare earth elements within the Tiros Project area.
Exploration Data
Resouro has accumulated over 11 years of exploration data, along with results from recent drilling activities, which have helped delineate the JORC-compliant mineral resource.
Project Potential & Catalysts
With its substantial resource base, high-grade elements, and strategic location the Tiros Project is well-positioned to become a leading force in the rare earth elements and titanium industries. Supported by advanced infrastructure, a pro-mining jurisdiction, and promising metallurgical results, the project is set to make a significant impact on the supply chain for critical minerals.
Growth Opportunities
The resource is largely untapped, with only 7% of the tenement area included in the Maiden JORC Resource, indicating significant growth potential as further drilling and exploration are conducted.
High Grade Content
The deposit contains high concentrations of valuable elements like Neodymium (Nd), Praseodymium (Pr), and Dysprosium (Dy), comprising approximately 28% of the rare earth elements within the Tiros trend.
Future Development
Near and medium-term milestones include:
- Infill drilling for mine planning
- Metallurgical test work for plant flowsheet design
- Environmental Impact Assessment and ESG initiatives
- Ongoing mine permitting activities.