Kirkland Lake passes 10,000 m drilled at KL West

Executive Summary

• Kirkland Lake Discoveries Corp. reports visual and geological updates from its ongoing 25,000-metre diamond drilling program at the KL West property in Ontario, with over 10,000 metres completed.
• Significant visual intercepts include broad zones of intense "brick-red" syenite alteration at Wolverine Bend and semi-massive sulphides with fluorite at Winnie Lake, indicating a district-scale hydrothermal system.
• New targets such as Sharp have yielded a 65-metre-thick sulphide-bearing horizon, while stepout drilling at Winnie Main confirms the extension of polymetallic mineralization.

Key Details

• Program Status: Over 10,000 metres of the 25,000-metre program are complete; two rigs are operating 24/7. Total metres drilled to date: 10,833 m across 32 holes.
• Wolverine Bend (Alteration Footprint):
  • Stepout drilling confirms continuous, tens-of-metres intervals of intense brick-red hematite alteration (potassic-hematite alteration) in syenite.
  • KLD26-62: Intersected strong potassic-hematite alteration from ~100 m to 240 m downhole, including a focused zone between 150 m and 185 m with significant quartz veining.
  • KLD26-63: Intersected a continuous 39 m interval of strong alteration starting at 5.6 m, including a 13 m interval (starting at 41.56 m) of intense potassic alteration with quartz-carbonate stringers.
  • KLD26-65: Intersected comparable intense alteration over contiguous intervals from 6 m to 67 m, extending to ~93 m.
• Winnie Lake (Polymetallic/Intrusive Mineralization):
  • Winnie Main East Trend:
    • KLD26-59: Intersected a 27.7 m interval (83.1 m to 110.8 m) with elevated pyrite and localized chalcopyrite.
    • KLD26-60: Intersected a 21.5 m interval (102.5 m to 124.0 m) with elevated pyrite and localized chalcopyrite.
  • Peripheral Corridor (East/North of Winnie Main):
    • KLD26-50 (Mini Winnie): Intersected a 15 m interval (118.6 m to 133.88 m) of semi-massive to stringer pyrite with blebby chalcopyrite.
    • KLD26-54: Intersected strongly potassic-altered syenite between 352.25 m and 376.08 m containing pyrite, chalcopyrite, and molybdenite.
• Regional Targets:
  • Sharp Target: First-pass drilling identified a new geological setting with broad intervals (up to 65 m true width) of heavily disseminated pyrite, pyrrhotite, sphalerite, and galena in graphitic mudstones.
  • Hammerhead Target: Intersected a broad 93 m zone (162.0 m to 255.0 m) of moderate epidote alteration, with significant sulphide mineralization (blebs and stringers) between 240.35 m and 259.06 m.
• Previous Context: The release references prior assay results from January (Hole KLD25-40: 8.3 m at 0.86 g/t Au, including 5.5 m at 1.21 g/t Au) which confirmed gold vectoring within altered syenite.
• Assay Status: Analytical assays are pending for all holes drilled since the late January update; samples are queued at ALS Laboratories.

Notable Quotes

• "The visual observations coming out of the KL West program is a significant milestone for us... When you see intense 'brick-red' hematite alteration at Wolverine Bend alongside coarse copper and molybdenite at Winnie Lake, you aren't just looking at rocks, you're looking at the absolute textbook signature of a massive hydrothermal system." — Stefan Sklepowicz, CEO
• "These are the exact geological markers that historically guided explorers to the legendary deposits of the Abitibi. While we are eagerly awaiting the laboratory assays to confirm the grades, the sheer scale of the alteration we are logging gives us tremendous confidence that we are onto a district-scale opportunity." — Stefan Sklepowicz, CEO