Hemlo Mining Corp. Extends Gold Mineralization 300 Metres to the East with Multiple High-Grade Intercepts

Executive Summary

• Hemlo Mining’s 2025 E‑Zone drilling program intersected multiple high‑grade gold zones, including 19.11 g/t Au over 5.0 m and 90.45 g/t Au over 2.6 m, indicating a substantial extension of mineralization eastward.
• The E‑Zone is interpreted as a potential analogue to the historic C‑Zone, extending ~1,000 m vertically and ~500 m east‑west, remaining open at depth and offering upside for future resource growth.
• Company plans to advance development in 2026 by driving a ~300 m exploration drift and conducting additional drilling to test strike and depth continuity.

Key Details

• Drill Hole Intercepts
• 6702501: 19.11 g/t Au over 5.0 m (206–216 m).
• 6702503: 15.79 g/t Au over 5.0 m (534–539 m) and 4.65 g/t Au over 10.7 m (164.76–175.42 m).
• 6702505: 7.08 g/t Au over 12.1 m (599–611.15 m) and a spectacular 90.45 g/t Au over 2.6 m (664.78–667.40 m).
• Program Scope – Six holes, total ~4,240 m drilled, targeting down‑plunge continuity of the westward‑plunging vein corridor west of the historic C‑Zone open pit.
• Geological Interpretation – E‑Zone consists of volcano‑sedimentary units with stacked quartz‑carbonate veins; geometry and structural controls are comparable to the long‑producing C‑Zone.
• Resource Potential – Current drilling suggests the zone is open at depth, with a strike length roughly half that of C‑Zone but with similar vein architecture, implying significant upside for future mineral resource and reserve additions.
• Future Work (2026) – Plan to drive an exploration drift (~300 m) into the E‑Zone and execute additional drilling to test continuity along strike and at depth.
• QA/QC – Core recovery 90–100%; certified reference materials, blanks, duplicates inserted; assays performed by ALS Laboratories using fire assay with AA finish (gravimetric re‑assay for >5 g/t Au).
• Qualified Person – Raphael Dutaut, Ph.D., VP Exploration, reviewed and approved the technical information per NI 43‑101.

Notable Quotes

“The E‑Zone… represents an attractive opportunity to potentially increase future mineral resources and reserves at Hemlo… advancing this zone has the potential to simplify mining sequences and provide optionality for increased mining rates in the future.” – Jason Kosec, President & CEO

Materiality Assessment: Material – Positive (high‑grade intercepts and a newly defined zone with clear upside for resource growth.)