USCM Confirms Strong Uranium-Vanadium Grades and CRD-Style Mineralization at Long Canyon

Executive Summary

• US Critical Metals Corp. announced results from its 2025 field program at the Long Canyon Vanadium-Uranium Project in Idaho, identifying two distinct mineralizing systems: metal-rich black shales and Carbonate Replacement Deposit (CRD) style mineralization.
• The black-shale system showed significant multi-element enrichment, with up to 9,066 ppm V₂O₅, 598 ppm U₃O₈, 1,500 ppm Mo, and 3,280 ppm Ni, supporting the consistency of grade within the system.
• The newly discovered CRD system in the Jefferson Formation carbonates yielded up to 0.75% Zn, 3.88% Pb, and 354 g/t Ag, confirming field observations and expanding the known mineral potential of the claim blocks.

Key Details

• Black-Shale System Highlights:
  • Vanadium (V₂O₅): Up to 9,066 ppm (Best Value); Average 1,522 ppm.
  • Uranium (U₃O₈): Up to 598 ppm (Best Value); Average 48 ppm.
  • Molybdenum (Mo): Up to 1,500 ppm (Best Value); Average 176 ppm.
  • Nickel (Ni): Up to 3,280 ppm (Best Value); Average 312 ppm.
  • Zinc (Zn): Up to 4,380 ppm (Best Value); Average 498 ppm.
  • Geological Context: Metals hosted in organic-rich, stratiform lenses and beds within the McGowan Creek Formation and shaly beds of the Middle Canyon Formation. Strong geochemical responses coincide with mapped shale panels, suggesting a stratabound target.
• Carbonate-Replacement (CRD) System Highlights:
  • Zinc (Zn): Up to 0.75% (Best Value); Average 0.09%.
  • Lead (Pb): Up to 3.9% (Best Value); Average 0.36%.
  • Silver (Ag): Up to 354 g/t (Best Value); Average 8.7 g/t.
  • Antimony (Sb): Up to 279 ppm (Best Value); Average 17 ppm.
  • Geological Context: Mineralization concentrated in mapped structures within Jefferson Formation carbonates (limestone and dolostone). Features include replacement by sphalerite/galena, narrow veins, breccia-cement fill, and local oxidation.
• Exploration Scope:
  • Total of 102 rock samples collected within current claim blocks.
  • 46 samples assigned to black-shale targets; 56 samples assigned to CRD-style targets.
  • Mapping and surface geochemistry outline approximately 4.3 km of prospective strike.
• Future Work:
  • Targeted structural mapping and sampling to refine models.
  • Electromagnetic (EM) surveys over conductive shale panels.
  • Induced Polarization (IP)-resistivity surveys across carbonate-replacement corridors.
  • Airborne EM or ground TDEM to trace conductive shale corridors.
  • Stratigraphic mapping to discriminate between McGowan Creek and Middle Canyon facies.
  • Channel sampling on key outcrops and scout drilling.
• Analytical Methods:
  • Samples prepared and analyzed by AGAT Laboratories (Calgary, Alberta).
  • Black-shale samples analyzed via lithium borate fusion with ICP-MS multi-element finish.
  • CRD/base-metal samples analyzed via four-acid digestion with ICP-OES/ICP-MS finish.
  • QA/QC included blind materials at ~5.2% rate; all CRM results within ±3 standard deviations of certified values.
• Qualified Person: Robert J. Johansing, B.Sc., M.Sc., reviewed and approved the scientific and technical information.

Notable Quotes

• "We are very pleased by the results of this field program. We have continued to confirm the potential grade and scale of the black-shale system and have now verified a new CRD system within the claim blocks. Our team will look to implement further programs at Long Canyon with the objective of commencing a well-defined drill program." — Mr. Darren Collins, CEO and Director