Sunshine Silver Mining & Refining (SSMR) investor relations material

Executive summary

• Completed a successful IPO in June 2026, raising between $291.9 million and $310.5 million, and began trading on the NYSE, providing a strong financial foundation for development and exploration.

• Sunshine Mine in Idaho's Silver Valley is positioned as North America's highest-grade primary silver resource, with a 24-year mine life, significant exploration upside, and vertically integrated refining ambitions.

• Major infrastructure upgrades, including new hoist commissioning and mill decommissioning, and a 50,000-meter infill drilling program are underway to support feasibility studies and future production.

• Management and board bring decades of mining, capital markets, and operational expertise.

Financial highlights

• Q2 2026 net loss was $16.7 million ($0.13/share), up from $7 million ($0.08/share) in Q2 2025, driven by increased development and public company costs.

• Cash and cash equivalents rose to $288.7 million as of June 30, 2026, from $31 million at year-end 2025, reflecting IPO proceeds.

• Operating loss for Q2 2026 was $17.4 million, compared to $5.6 million in Q2 2025.

• Pre-development expenses increased to $10.2 million in Q2 2026 from $3.2 million in Q2 2025; G&A expenses rose to $6.9 million from $2.2 million.

• No silver sales in 2026, reflecting pre-production status.

Outlook and guidance

• Feasibility study for Sunshine Mine expected completion in Q2 2027, with construction and mine development to follow; first silver production targeted for late 2028, ramping to commercial production in 2029.

• Feasibility studies for antimony plant and silver-copper refinery targeted for completion by early to mid-2027.

• G&A expenses to remain elevated through 2026, tapering off in 2027; exploration and development spending to increase in the second half of 2026.

• Plans to complete 50,000-meter drilling program and 1,300 meters of underground development in H2 2026.