Sentinel Metals (SNM) Status update summary

Recent developments and performance

• Share price has risen from AUD 0.20 at IPO to AUD 0.58 by August 2026, outperforming gold and sector indices.

• Recognized as one of the top-performing exploration IPOs in the past year.

• Board and management have strong mining experience and industry connections, with major shareholders including founders, board, and top-20 investors.

Project portfolio and growth strategy

• Advancing the Columbia Gold & Silver Project in Montana with a 920koz gold resource and significant exploration upside, including an additional exploration target of 800,000–1,200,000oz Au at 1.1–1.4g/t Au.

• Maiden drilling at Columbia has delivered high-grade intercepts, confirming gold in fresh rock and highlighting potential for resource expansion at depth.

• Strategic acquisition of the Big Springs Gold Project in Nevada, adding a high-grade, mine-permitted 1Moz JORC resource and doubling the global resource base to nearly 2Moz.

• Big Springs offers a fully approved mine plan, proximity to major processing infrastructure, and significant exploration potential.

• Combined, these assets create a Tier-1 North American gold growth platform with diversified development and exploration opportunities.

Columbia project update

• Maiden drill program at Columbia is halfway complete, with 21 holes planned and several assays pending.

• Recent drill results include 46–47 m at 5.5 g/t, confirming mineralization continuity across oxide and fresh zones.

• Resource update targeted for November, incorporating new drilling and higher gold price assumptions.

• Drilling faced delays due to wet spring and challenging clays, but learnings have improved recovery and efficiency.

• Assay turnaround is slower due to lab backlogs and logistical issues, with next results expected late August or early September.