Nord Precious Metals Completes Deep Ground Penetrating Radar Survey at Castle

Executive Summary

• Nord Precious Metals completed a four‑day orientation survey using Deep Ground Penetrating Radar (DGPR) at the Castle property to map historic underground openings and assess vein extensions.
• The survey data will be analyzed by Earth Scan Technologies, which will deliver maps, vertical sections, and a 3D model to support upcoming sonic drilling and tailings recovery programs.
• Results are intended to guide voluntary remediation of historic tailings and enable back‑filling of empty stopes using cemented gravity concentrates rich in silver and critical metals.

Key Details

• Survey depth targeted the upper four levels of historic workings (21 m and 48 m depths), with DGPR capable of penetrating up to 200 m covering eight of eleven total levels.
• Objectives include:
• Mapping historic drifts and distinguishing mineral‑filled versus empty stopes.
• Identifying fractures, new vein structures, or extensions of mined stopes.
• Delineating lithologic contacts, especially the Nipissing diabase source of high‑grade silver mineralization.
• Earth Scan Technologies will provide a final report containing:
• Structural maps and vertical cross‑sections.
• Interpretations highlighting stope and vein characteristics.
• A 3D model (contingent on data density).
• Survey results will be combined with an upcoming sonic drill program on historic Miller Creek tailings to test recovery of silver and critical metals.
• Planned process: recover high‑grade silver concentrate with critical metal sulfides, mix the final gravity circuit tailings with cementing material, and backfill empty stopes for ground stabilization.
• The orientation survey was completed in four days; further surveying may be expanded based on data quality and discovery of additional veins.
• Technical information approved by Frank J. Basa, P.Eng., director of Nord Precious Metals, qualified person under NI 43‑101.

Notable Quotes

“This work is part of the Company's ongoing voluntary remediation of the historic tailings and workings.” – Frank J. Basa, CEO

Materiality Assessment: Non-Material – Neutral (operational update with no immediate financial impact).