Maverick Springs Resource Jumps to 539Moz AgEq with High-Grade Drilling Results

Resource Growth and Drilling Success

Sun Silver Limited (ASX, SS1) has announced a significant uplift in its flagship Maverick Springs Silver-Gold Project in Nevada, USA. The company’s latest mineral resource estimate reveals an increase of 59 million ounces silver equivalent (AgEq), bringing the total inferred resource to 539Moz AgEq at an average grade of 71 grams per tonne. This growth is attributed to the 2025 drilling campaign and an extensive historical re-assay program that has also highlighted promising antimony mineralisation near surface.

The recent drilling results have reinforced the continuity and scale of the silver-gold system, with some of the widest intercepts recorded at the resource boundaries. Notable drill intercepts include intervals exceeding 100 metres at grades above 70g/t AgEq, and high-grade gold zones reaching over 3 grams per tonne. The mineralisation remains open in all directions, suggesting further upside potential.

Strategic Location and Geological Context

Maverick Springs is strategically located just 85 kilometres from Elko, Nevada, within a globally recognised mining jurisdiction. The project lies near the prolific Carlin Trend, home to world-class operations such as Barrick’s Carlin Mine. The deposit exhibits Carlin-style characteristics, with fine disseminated silver and gold particles hosted in sedimentary carbonate rocks. This geology supports large-scale, low-grade bulk mining, which can be economically viable due to the deposit’s size and consistent grade distribution.

Emerging Antimony Potential

Beyond silver and gold, Sun Silver’s re-assay program has uncovered significant antimony mineralisation within the resource footprint. Broad zones with elevated antimony grades, including intervals exceeding 0.1% Sb, have been identified near surface. This discovery opens the possibility of defining a maiden antimony resource, adding a valuable critical mineral to the project’s portfolio and enhancing its strategic importance.

Market Access and Strategic Advisory Appointment

In a move to broaden its investor base and enhance liquidity, Sun Silver commenced trading on the U.S. OTCQX market under the ticker SSLVF. This listing facilitates easier access for U.S. institutional and retail investors, trading in U.S. dollars during American market hours.

Complementing this market expansion, the company appointed Dennis Lindgren as a strategic advisor to steer its U.S. government engagement and critical minerals strategy. Lindgren brings extensive experience from his leadership role at Alcoa’s Gallium Project, a U.S.-Australia critical minerals partnership flagship. His expertise is expected to accelerate Sun Silver’s navigation of strategic funding, permitting, and cross-government collaboration in the U.S.

Financial Position and Outlook

Sun Silver reported cash reserves of approximately AUD 30.2 million at the end of December 2025, with exploration expenditure of AUD 3.61 million during the quarter. The company remains well-funded to continue its aggressive exploration and development programs at Maverick Springs.

The inclusion of silver on the 2025 U.S. Department of the Interior Critical Minerals List further elevates the project’s profile, aligning it with national priorities for supply chain resilience in clean energy, electronics, and defence sectors. This designation, combined with tightening global export controls on silver, positions Maverick Springs as a strategically significant asset in the Western hemisphere.