• Maverick Springs Resource increased by 59Moz AgEq to 539Moz AgEq at 71g/t
• Silver-only Resource increased to 347.2Moz at 45.5g/t
• Sun Silver has now delivered three Mineral Resource upgrades in under two years

Sun Silver Limited (ASX: SS1) has reported an updated Mineral Resource estimate for its Maverick Springs Silver-Gold Project in Nevada, USA, with the total Inferred Mineral Resource increasing by 59Moz to 539Moz silver equivalent at 71g/t. The silver-only Resource increased to 347.2Moz at 45.5g/t. Sun Silver has now delivered three Mineral Resource upgrades in under two years, demonstrating strong technical momentum and continuous value creation. The Maverick Springs system remains open in all directions, with 2024-2025 extensional drilling delivering some of the widest intercepts on the Mineral Resource boundary, paving the way for further significant growth. Silver was recently added to the 2025 U.S. Department of the Interior Critical Minerals List, enhancing U.S. and Australian government interest in Maverick Springs. China's new silver export controls and tax changes signal a shift toward resource sovereignty, further elevating the strategic importance of large-scale U.S. silver projects like Maverick Springs.

The updated Mineral Resource estimate incorporates data from Sun Silver's 2025 extensional and infill drill holes and results from the multi-element re-assay program. Further infill drilling results remain outstanding and will be released as they are received in the coming months.

The Maverick Springs Project offers significant potential for further resource growth, with the mineralisation remaining open in all directions. The high-grade results recorded within the north-west corner of the current Mineral Resource indicate a continuation of wide zones of mineralisation in that direction and the potential to further expand the size of the Mineral Resource and increase the grade in the north-west section of the property.