Kirkland Lake Discoveries Expands Mirado Gold System with 18.99 g/t Au over 6.7 m and 0.50 g/t Au over 91.0 m

North Zone Extended by 85 m; Initial MZ Zone Drilling Intersects Broad Hydrothermal Alteration 500 m West of Mirado; Regional Drilling Permit Secured Across KL South Toronto, Ontario--(Newsfile Corp. - July 23, 2026) - Kirkland Lake Discoveries Corp. (TSXV: KLDC) (OTCQB: KLKLF) ("KLDC" or the "Company") reports assay results from eight additional drill holes at the Mirado Gold Project, including broad near-surface mineralization, high-grade gold below the historical resource and an extension of the North Zone. The Company has also completed its first regional test at the MZ Zone, approximately 500 m west of Mirado, where drilling intersected intense hydrothermal alteration and sulphide mineralization. Assays from the MZ Zone are pending.

KLDC has received a regional drilling permit covering all of the KL South Project. Highlights Broad near-surface expansion: KLM26-019 returned 0.50 g/t Au over 91.0 m , including 1.13 g/t Au over 23.8 m and 10.94 g/t Au over 0.8 m, expanding the South Zone mineralization approximately 130 m northwest . High grade below the historical resource: KLM26-017 returned 18.99 g/t Au over 6.7 m, including 125.91 g/t Au over 1.0 m.

North Zone expansion: KLM26-013 returned 0.98 g/t Au over 35.0 m, including 12.20 g/t Au over 1.0 m, followed by 0.61 g/t Au over 23.0 m, extending the mineralized trend by approximately 85 m. Regional potential at the MZ Zone: KLM26-035 intersected intense silica-chlorite-epidote alteration with disseminated and fracture-filled pyrite; assays are pending. Active growth program: a regional drill permit now covers all of KL South, with 16 additional holes pending assays and drilling continuing.

"Today's results are important as they demonstrate growth in three dimensions at KL South," said Stefan Sklepowicz, Chief Executive Officer of KLDC. "KLM26-019 materially expands the broad near-surface mineralized foo