St George Mining reports outstanding assay results from 16 new diamond drill holes at its Araxá Rare Earths and Niobium Project, confirming thick, high-grade mineralisation from surface and reinforcing its status as South America's largest carbonatite-hosted rare earth resource.
- 16 new diamond drill holes confirm thick, high-grade rare earth and niobium mineralisation from surface
- Grades up to 24% Total Rare Earth Oxides (TREO) and 5% niobium pentoxide (Nb2O5) reported
- Araxá Project holds largest and highest-grade carbonatite-hosted rare earth resource in South America
- Strategic dual commodity focus on rare earths and niobium amid global supply tensions
- JORC-compliant resource totals approximately 70.91 Mt at 4.06% TREO and 0.77% Nb2O5 with further resource upside
Outstanding Drill Results Reinforce Araxá’s Potential
St George Mining Limited (ASX:SGQ) has delivered a fresh wave of optimism for its Araxá Rare Earths and Niobium Project in Minas Gerais, Brazil, with assay results from 16 new diamond drill holes revealing thick intervals of high-grade mineralisation starting from surface. The standout intercepts include grades as high as 24% Total Rare Earth Oxides (TREO) and 5% niobium pentoxide (Nb2O5), underscoring the project's position as the largest and highest-grade carbonatite-hosted rare earth resource in South America.
The latest drilling campaign continues to demonstrate the remarkable continuity and thickness of mineralisation, with multiple holes returning significant intercepts exceeding 100 metres in length at grades well above industry benchmarks. These results not only bolster confidence in the existing resource but also hint at the potential for further resource expansion as mineralisation remains open in all directions.
Dual Commodity Focus Amid Geopolitical Importance
Executive Chairman John Prineas highlighted the strategic significance of the dual commodity focus on rare earth elements and niobium, both critical metals with growing demand and limited global supply. Notably, neither China nor the United States currently have domestic sources of niobium, a metal essential for manufacturing military hardware and other high-tech applications. Araxá’s proximity to CBMM’s niobium mine, which accounts for 80% of global supply, places St George in a premier niobium address with ready access to infrastructure and expertise.
These geopolitical factors add a layer of importance to the project, especially amid heightened global tensions and supply chain vulnerabilities. The Araxá Project’s location within the Barreiro Carbonatite complex, known for its rich niobium and rare earth deposits, further enhances its commercial appeal.
Robust JORC Mineral Resource Estimates and Development Progress
St George has provided updated JORC-compliant Mineral Resource Estimates that quantify the scale and quality of the deposit. Using a 2% TREO cut-off, the measured and indicated resource totals approximately 70.91 million tonnes at 4.06% TREO and 0.77% Nb2O5. An additional 24.56 million tonnes at 0.52% Nb2O5 (using a 0.2% Nb2O5 cut-off) represents material outside the TREO cut-off but still significant for niobium potential.
The mineralisation is near-surface, free-milling, and amenable to open-pit mining, which bodes well for the upcoming scoping studies and potential development. The company is advancing multiple workstreams, including metallurgical testing and environmental studies, supported by government facilitation for expedited approvals.
Looking Ahead: Drilling and Development Momentum
Drilling continues around the clock with multiple rigs active, and assays from 23 additional drill holes are pending. The increased drill density in previously underexplored areas is expected to improve resource confidence and support the delineation of indicated resources and reserves.
St George’s experienced in-country team is leveraging the region’s long history of niobium mining and established infrastructure to accelerate the project’s pathway to production. Investors and analysts will be watching closely for further resource upgrades and development milestones as the company moves toward unlocking the full value of this world-class asset.
Bottom Line?
With thick, high-grade mineralisation confirmed from surface and ongoing drilling underway, Araxá is poised for further resource growth and development progress.
Questions in the middle?
- How will the pending assays from 23 drill holes impact the current resource estimate?
- What are the timelines and risks associated with regulatory approvals and environmental permitting in Brazil?
- How might the royalty structure affect the project's future economics and investor returns?