Auriginal intercepts gold-copper over 125 m at Roger, Chibougamau

Highlights:

125.3 m grading 0.67 g/t Au, including 20.0 m at 1.94 g/t Au, returned in hole AUR-26-07, the widest intercept of the program to date, extending the Roger zone by at least 125 metres at depth

Near-surface copper-gold confirmed: 34.5 m of 0.69 g/t Au and 0.14% Cu from just 70.5 m downhole in AUR-26-06

High-grade gold at depth: 50.4 g/t Au over 0.5 m at 572.7 m and 9.1 g/t Au over 2.5 m at 596.0 m in AUR-26-06 and 12.2 g/t Au over 1.1 m in AUR-26-05, demonstrating the high-grade endowment persists throughout the system

Phase 1 drilling complete: 10 holes totaling 7,325 m have expanded the Roger mineralized footprint approximately 700 m southwest, 400 m northeast, and more than 100 m at depth, growth that will be captured in the revised Mineral Resource Estimate now underway

The Roger is characterized as wide anomalous copper- and gold-bearing sulphide intervals over hole lengths of 200-250 m in all holes, commencing near surface.

Phase 2 drilling is now on the fourth hole of a 12-hole, 6,400 m drill program

Toronto, Ontario--(Newsfile Corp. - September 1, 2026) - Auriginal Mining Corp. (TSXV: AUME) (" Auriginal " or the " Company ") is pleased to report that encouraging results continue to be returned from Phase 1 Roger diamond drilling. The new results, in combination with our Phase 2 definition drilling, will supplement an expanded Mineral Resource for the historical Roger Zone being undertaken.

The new assays continue to demonstrate the two features that define Roger's investment case, exceptional width and consistent grade near surface, punctuated by high-grade gold. Hole AUR-26-07 returned the standout intercept of the program to date, 125.3 m grading 0.67 g/t Au from 346.0 m, including 20.0 m at 1.94 g/t Au, this single intersection extends the Roger zone by at least 125 metres at depth.

Higher in the system