Multiple Exceptional High-Grade Gold Intersections at Rouyn

MULTIPLE EXCEPTIONAL HIGH-GRADE GOLD INTERSECTIONS CONTINUE TO EXPAND ROUYN GOLD SYSTEM

Broad mineralised halos, high-grade shoots and coarse gold continue to support
the interpretation of a large structurally controlled gold system at Astoria

Highlights

• Multiple exceptional high-grade gold intersections[1]:

AS-26-793 5.65m @ 141.29g/t Au  (from 148.15m) including 0.5m @ 1,580.00g/t Au

AS-26-792 9.10m @ 6.31g/t Au  (from 123.40m) including 4.00m @ 10.41g/t Au

AS-26-794 9.50m @ 2.25g/t  (from 178.00m) including 3.00m @ 6.72g/t Au

AS-26-787 97.50m @ 1.04g/t Au  (from 554.65m) including 17.00m @ 3.58g/t Au

AS-26-788 49.95m @ 1.12g/t Au  (from 623.15m) including 3.75m @ 7.00g/t Au, and 14.60m @ 2.11g/t Au, and 1.00m @ 12.78g/t Au

AS-26-791 88.80m @ 0.61g/t Au (from 73.20m)

• Exceptional assay results associated with previously reported visible gold occurrence in hole AS-26-793[2]

• Multiple samples required additional screen metallic and gravimetric analysis due to coarse gold and elevated assay values

• Results continue to confirm continuity of high-grade mineralisation within the current drilling area

• Broad mineralised halos and high-grade shoots are consistent with a large and evolving gold system

• Initial 15,000m Phase 1 drilling campaign now completed

• Two diamond drill rigs currently operating with substantial assay results still pending

[1]  Intersections expressed as downhole lengths. True widths are unknown at this stage.

[2] Refer ASX:ADV Announcement dated 29 April 2026