Second Wedge Hole Returns 51m Wide Tin Zone

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Stock Stellar Resources Ltd (SRZ.ASX)
Release Time 18 Dec 2025, 9:22 a.m.
Price Sensitive Yes
 Second Wedge Hole Returns 51m Wide Tin Zone
Key Points
  • Wedge hole ZS187W1C intersected a 51m wide zone of tin mineralisation, including a high-grade core of 11m @ 1.10% Sn
  • Results support resource conversion from Inferred to Indicated and potential expansion of the 2023 Mineral Resource Estimate
  • Prefeasibility work progressing well, including due diligence on nearby Avebury Plant and investigations on the Comstock plant site
Full Summary

Stellar Resources Limited (ASX: SRZ) has reported further drilling results from the Severn deposit at its Heemskirk Tin Project in Western Tasmania. The extended drilling program comprises a total 29-hole (~12,000m) diamond drilling campaign focused on infill and extensions to the 2023 Mineral Resource Estimate (MRE). This release reports assay results from one wedge hole drilled at Severn (ZS187W1C) and a further wedge hole at Queen Hill (ZQ189W). Drillhole ZS187W1C intersected a significant 51m wide zone of tin mineralisation, including a high-grade core of 11m @ 1.10% Sn. The results support the continued resource conversion of the Heemskirk tin system, with high expectations to upgrade from Inferred to Indicated while also expanding the 2023 MRE. Prefeasibility work is progressing well, including due diligence on the nearby Avebury Plant and investigations on the Comstock plant site, both areas under MOU's. Tin prices climbing above US$41,000/t this month amid Indonesia's crackdown on illegal mining and stricter export controls highlight ongoing global supply vulnerability and strengthens the strategic case for Stellar's Heemskirk Tin Project in a stable Tier-1 jurisdiction.

Outlook

With further assays pending and additional wedges underway, Stellar remains well positioned to continue delivering results. The Company anticipates reporting updated Resources at Queen Hill and Severn in early 2026 and the completion of the PFS in the 1H 2026 as the Company adds additional holes to maximise the Resource size to be used in the Prefeasibility study.