Myriad Uranium's Preliminary Interpretation of High-Resolution Geophysics at Copper Mountain Provides Strong Additional Validation for District-Scale Uranium Endowment. Ground-Truthing Program Underway.

Executive Summary

• Myriad Uranium completed a high‑resolution airborne magnetic and radiometric survey over the Copper Mountain Uranium Project, identifying >100 new radiometric anomaly points, primarily east of the historic structural corridor.
• The company has begun systematic ground‑truthing of these anomalies; initial field measurements show radiometric counts >100× background, supporting the airborne results.
• Results will feed an expanded land position and provide additional drill targets for a Phase 2 drilling program slated for Q2 2026.

Key Details

• Survey area: ~191.8 km²; 2,114 line‑kilometres flown at 100 m line spacing, 30 m altitude, north‑south orientation.
• Magnetic data collected with Scintrex CS‑3 (or equivalent) cesium vapor magnetometer; radiometric data with Medusa gamma spectrometer (21 L NaI(Tl) crystals).
• Data processing performed using Geosoft Oasis Montaj 2025.1 and proprietary algorithms, delivering RTP, CHG, CVG, Analytic Signal for magnetic; full‑spectrum corrections and radioelement ratios for radiometric data.
• Preliminary interpretation highlights:
• Known historic deposits correlate with magnetic/eU signatures.
• Extensive new radiometric anomaly clusters identified in previously underexplored eastern extensions of the district.
• Over 100 prioritized anomaly points selected for field validation; majority lie east of the north‑south structural corridor.
• Ground‑truthing program:
• Initiated last week; aims to confirm uranium mineralization intensity, characterize geology and structure, assess scale/continuity, and refine drill targets.
• Initial measurements show radiometric readings >100× background (Figure 3).
• Future plans:
• Expanded land position disclosure forthcoming.
• Phase 2 drill program planned for Q2 2026, incorporating newly validated targets.
• Qualified Person: George van der Walt, MSc., Pr.Sci.Nat., FGSSA – reviewed and approved all technical information per NI 43‑101.

Notable Quotes

“All known historic uranium resources … are located west of the major north‑south structural corridor… The overwhelming majority of radiometric anomaly points generated by our recent district‑scale airborne survey occur in untested ground east of that structural corridor.” – Thomas Lamb, President & CEO

The release contains forward‑looking statements regarding exploration results and future drilling plans.