Drilling Highlights Chanach Copper-Gold Exploration and Resource Potential

Executive Summary

• RT Mining released final assay results from a 4,300 m diamond drilling program that confirmed multiple high‑grade copper and gold intercepts across the Chanach project.
• Notable new intercepts include:
• Hole DD25‑12 – 21.9 m @ 0.39 % Cu (including 2.9 m @ 0.62 % Cu) and several additional sub‑intervals above 0.35 % Cu.
• Hole DD25‑13 – 25.9 m @ 0.49 % Cu (including 1.0 m @ 1.10 % Cu).
• Hole DD25‑11 – high‑grade gold vein: 6.05 m @ 9.23 g/t Au (including 2.65 m @ 17.85 g/t Au) and a 0.50 m @ 10.2 g/t Au shoot.
• These results expand the known oxide copper footprint and demonstrate potential to enlarge the existing JORC‑compliant inferred gold resource of 2.95 Mt @ 5.11 g/t Au (484,000 oz).

Key Details

• Drilling Program: 13 holes completed; total depth 4,300 m; two HQ diamond rigs used; all logging and assaying finished.
• Copper Intercepts – Hole DD25‑12:
• 21.9 m @ 0.39 % Cu from 52.2 m (incl. 2.9 m @ 0.62 % Cu, 3.5 m @ 0.35 % Cu, 1.7 m @ 0.63 % Cu).
• Copper Intercepts – Hole DD25‑13:
• 2.10 m @ 0.41 % Cu from 30.6 m.
• 25.9 m @ 0.49 % Cu from 62.1 m (incl. 1.0 m @ 1.10 % Cu, 1.2 m @ 1.06 % Cu).
• Gold Vein Intercepts – Hole DD25‑11:
• 0.50 m @ 10.2 g/t Au from 6.55 m.
• 6.05 m @ 9.23 g/t Au from 31.4 m (incl. 2.65 m @ 17.85 g/t Au, 1.00 m @ 6.43 g/t Au).
• Existing Resource: Inferred mineral resource of 2.95 Mt @ 5.11 g/t Au (484 k oz Au) and 17.23 Mt @ 0.37 % Cu (64 kt Cu).
• Target Areas: Oxide copper zone on southern edge of northern chargeable geophysical anomaly; untested quartz veins ~170 m from main resource; broader IP anomaly (~1.8 km diameter) with multiple chargeable signatures.
• Future Work: Planned step‑out drilling of magnetic/skarn targets, further expansion of the oxide copper footprint, and additional testing of untested gold veins to grow the resource.

Notable Quotes

“We are very pleased to report these final assays… Diamond drilling continues to deliver high‑grade intercepts from key copper and gold prospects, demonstrating the scale and quality of this mineral field…” – Justine Magee, President & CEO, RTG Mining Inc.