25m Tin Zone with 2.75% Sn Core Found in Stellar’s Latest Severn Drillhole

Strong Drilling Results at Severn

Stellar Resources Limited (ASX – SRZ) has announced promising assay results from its recent wedge hole drilling at the Severn deposit, part of the Heemskirk Tin Project in Western Tasmania. The wedge hole ZS187W1B intersected a substantial 25-metre zone of tin mineralisation, including a high-grade core reaching up to 2.75% tin (Sn). This confirms the robustness of Stellar’s geological model and validates their infill drilling strategy aimed at upgrading resource confidence.

Advancing Resource Conversion and Expansion

The new results provide strong support for converting mineralisation from the Inferred to the higher confidence Indicated category, a critical step in advancing the project’s development readiness. The drilling program, which has completed 26 of 29 planned holes, is focused on expanding and upgrading the 2023 Mineral Resource Estimate. Additional wedge holes, including ZS187W1C and ZS187W2, are underway with assay results pending, promising further insights into the deposit’s extent and grade.

Prefeasibility Study Progress and Strategic Partnerships

Stellar is progressing its Prefeasibility Study (PFS), targeting completion in the first half of 2026. The PFS drilling extension was endorsed by the board following these encouraging results. Concurrently, due diligence is underway on the nearby Avebury Plant and Comstock plant site, both under Memorandums of Understanding, which could offer processing synergies and cost efficiencies for Heemskirk’s development.

Market Context and Project Significance

The timing of these results is notable amid a recent surge in tin prices, which have climbed above US$37,000 per tonne. This price spike follows Indonesia’s crackdown on illegal mining and tighter export controls, underscoring global supply risks. Stellar’s Heemskirk project, located in a stable Tier-1 jurisdiction, is well positioned to capitalize on these market dynamics, potentially contributing around 1% of global tin supply once operational.

Looking Ahead

Managing Director Simon Taylor highlighted the effectiveness of wedge and navigational drilling in accelerating resource conversion. He emphasized the strategic importance of growing and de-risking the deposit in a strong tin price environment. With further assays pending and drilling ongoing, Stellar is building momentum towards a robust resource upgrade and a comprehensive prefeasibility outcome that could unlock significant shareholder value.