• Drilling continued to confirm the continuity, quality and scale of silver-gold mineralisation at the Maverick Silver Project
• Exceptional metallurgical recoveries achieved from IBR cyanide leach tests on coarse-crush material
• Additional 427 lode claims (~35.7 km²) staked to the north and south of the existing project boundary

Sun Silver Limited reported its Quarterly Activities Report for the period ending 31 March 2026. Highlights included continued drilling success at the company's Maverick Silver Project, which is located in Nevada, USA. Significant drilling results confirmed the continuity, quality, and scale of silver-gold mineralisation at the project, with multiple high-grade intercepts reported. The company also reported exceptional metallurgical recoveries from initial Intermittent Bottle Roll (IBR) cyanide leach tests on coarse-crush material, with silver recoveries up to 78.3% and gold recoveries up to 77.3%. During the quarter, Sun Silver staked an additional 427 lode claims (~35.7 km²) to the north and south of the existing project boundary, representing a 219% increase in the company's total landholding. This strategic expansion is designed to cover prospective extensions of known mineralisation. The company also appointed Sunstone Environmental Solutions as the Lead Environmental Consultant to manage and oversee the mine permitting and NEPA process for the Maverick Silver Project. The 2026 drill program is now underway, with four diamond core drill rigs mobilised to drive resource upgrade, growth, and metallurgical advancement.

2026 represents a critical phase in advancing the Maverick Silver Project toward development, with key activities including: advancing Mineral Resource classification toward JORC Indicated classification; further expansion of the Mineral Resource through targeted step-out drilling; further advancing metallurgical understanding to support heap leach processing pathways; generating technical inputs for future development studies and mine planning; progressing environmental permitting and baseline studies; ongoing mine planning activities, including pit optimisation studies; and targeting completion of a Scoping Study in Q4 2026 and a Pre-Feasibility Study in Q2 2027.