Queen Hill Resource Up 41%

• 41% increase in Total Mineral Resource to 4.11Mt @ 0.85% Sn for 34,900t of contained tin
• 46% increase in Indicated Resource to 2.26Mt @ 0.94% Sn for 21,190t of contained tin
• Total Mineral Resource increased to 9.5 Mt @ 0.93% Sn for 88,100t of contained tin

Stellar Resources Limited (ASX: SRZ) has reported an updated Mineral Resource Estimate (MRE) for the Queen Hill Deposit, part of its flagship Heemskirk Tin Project in western Tasmania. The updated MRE shows a 41% increase in the Total Mineral Resource to 4.11Mt @ 0.85% Sn for 34,900t of contained tin, and a 46% increase in the Indicated Resource to 2.26Mt @ 0.94% Sn for 21,190t of contained tin. The total Mineral Resource for the Heemskirk Tin Project has increased to 9.5 Mt @ 0.93% Sn for 88,100t of contained tin, with the addition of the Queen Hill update. This takes the total Heemskirk Tin Project and nearby St Dizier satellite deposit resource base over the 100kt of contained tin milestone. The Heemskirk Tin Project continues to rank as the highest-grade undeveloped tin project in Australia and the third highest-grade globally among peer company projects. Stellar expects to report an updated MRE for the Severn deposit and complete the Prefeasibility Study in the June quarter of 2026.

Stellar Resources has not provided any high-importance, price-sensitive forward-looking financial metrics in the announcement.

Stellar Resources expects to report an updated Mineral Resource Estimate for the Severn deposit and complete the Prefeasibility Study on the Heemskirk Tin Project in the June quarter of 2026. These timelines may change if drilling continues to deliver success with additional holes added to maximize the Resource size to be used in the Prefeasibility Study.