Heritage Intersects Mega Quartz Vein Structure 185m Along Strike at its Drayton-Black Lake Project

Executive Summary

• Heritage Mining released preliminary results from its Fall 2025 diamond drill program at the Zone 3 Extension, Drayton‑Black Lake project.
• The first scout hole (HML25‑016) intersected a ~15 m core length of the Mega Quartz Vein Structure with notable sulfide‑bearing quartz mineralization, including grades up to 4 g/t Au over 2 m.
• Additional drill holes have been completed and are being processed; follow‑up soil/till surveys, permitting work, and further drilling are planned for Q4 2025/Q1 2026.

Key Details

• Drill Hole HML25‑016 (first scout hole)
• Intersected Mega Quartz Vein Structure over ~185 m strike length.
• Core interval of quartz vein mineralization: 15.51 m (from 87.49 m to 103.00 m); true width not yet determined.
• Sulfide‑bearing quartz intervals:
  • 0.98 g/t Au over 5.00 m starting at 101.00 m.
  • 1.11 g/t Au over 11.09 m starting at 115.91 m, including a higher‑grade zone of 4 g/t Au over 2 m at ~125 m.
• Additional Holes
• Two more holes completed; intersected a major NE‑SW striking linear magnetic feature within granite (assays pending).
• Exploration Program Status
• Soil/Till Orientation Survey near completion; follow‑up survey expected Q4 2025, weather permitting.
• Outcrop/Vein stripping permit received for area above HML25‑013 – work in progress.
• Structural study of the Mega‑Quartz Vein System initiated.
• Further diamond drilling scheduled for Q4 2025/Q1 2026 (near completion).
• Qualified Person
• Mitchell Lavery, P.Geo., Strategic Advisor, reviewed and approved the technical information per NI 43‑101.

Notable Quotes

“We are extremely pleased to have extended such a broad vein zone in the first scout hole at Zone 3 Extension prospect Fall 2025 exploration program… This is an excellent start to Heritage’s Fall scout drill program.” – Peter Schloo, President, CEO and Director, Heritage Mining Ltd.