Kirkland Lake Discoveries intersects 1.22 g/t Au over 69.5 m at Mirado West

Toronto, Ontario--(Newsfile Corp. - September 2, 2026) - Kirkland Lake Discoveries Corp. (TSXV: KLDC) (OTCQB: KLKLF) ("KLDC" or the "Company") is pleased to report the first two holes from the regional testing around the Mirado deposit. MZ target holes KLM26-035 and KLM26-037 successfully intersected multiple broad intervals of gold mineralization and high-grade gold. Mineralization and alteration of these holes are consistent with the Mirado South Zone and are interpreted to be contiguous with the historical deposit. As such, the Company has renamed the MZ Zone to Mirado West. These holes are part of the ongoing summer 2026 drill program at KL South Project, 18 km south of Kirkland Lake, with 19 additional holes pending.

Highlights

KLM26-037 - 1.22 g/t Au over 69.50 m from 33.00 m including 5.67 g/t Au over 12.00 m

KLM26-035 - 0.35 g/t Au over 21.18 m from 19.50 m and 0.65 g/t Au over 15.83 m from 65.20 m and 0.34 g/t Au over 11.23 m from 95.50 m and 36.72 g/t Au over 1.01 m from 174.50 m and 0.89 g/t Au over 11.60 m from 222.40 m

Mineralization and alteration are consistent with the Mirado deposit, extending mineralization more than 600 m west and bringing the lateral mineralized footprint to over 1,300 m.

19 holes pending results Nine from Mirado North and South

Four from Mirado West

Six regional targets

"The discovery at Mirado West is a transformative milestone for Kirkland Lake Discoveries. Intercepting broad, near-surface mineralization validates our regional targeting and significantly scales up the project," stated Stefan Sklepowicz, Chief Executive Officer. "By extending our mineralized footprint to over 1,300 metres, we are demonstrating that Mirado is part of a much larger, contiguous gold system. With 19 holes still pending, including four more from this newly renamed Mirado West, we are eagerly anticipating the res