• Historic drillhole re-assay program confirms near surface antimony zones
• Results continue to strengthen the potential for a maiden antimony Mineral Resource estimate
• JPMorgan invests US$75 million in Perpetua Resources, highlighting the rising strategic importance of U.S. antimony

Sun Silver Limited is pleased to provide an update on the ongoing multi-element re-assay program at its Maverick Springs Silver-Gold Project in Nevada, USA. The latest re-assay results have confirmed zones of antimony mineralisation extending to near surface within the 2.4km by 1.4km silver-gold Mineral Resource footprint. Notable intercepts include 4.57m at 0.16% Sb from 4.57m in MR013, 18.4m at 0.12% Sb from 27.9m including 9.78m at 0.17% Sb from 30.3m in MR126, and 29.6m at 0.1% Sb from 184m, including 4.27m @0.26% Sb from 207.3m in MR050. These results continue to strengthen the potential for a maiden antimony Mineral Resource estimate at Maverick Springs, complementing the existing large-scale silver-gold system. The re-assay program is part of Sun Silver's broader strategy to unlock the full multi-commodity potential of the project. The announcement also highlights JPMorgan's recent US$75 million investment in Perpetua Resources, the first from its US$1.5 trillion Security and Resiliency Fund, which underscores the rising strategic importance of U.S. antimony and reinforces the relevance of Sun Silver's Maverick Springs project as a domestic critical minerals opportunity.

The increasing focus on domestic critical minerals, including silver and antimony, is expected to strengthen investor interest and support for projects that contribute to U.S. and global mineral security.