N.A. Niobium completes phase 1 fall fieldwork in Quebec

Executive Summary

• North American Niobium and Critical Minerals Corp. completed its Phase 1 Fall 2025 prospecting, mapping, and channel sampling program across four 100%-owned properties in Quebec: Seigneurie, Bardy, Blanchette, and Sabot.
• The program focused on verifying historical results and identifying new critical mineral targets, resulting in the discovery of carbonatite boulders at Blanchette and the confirmation of rare-earth-element (REE)-anomalous carbonatite subcrops and pegmatites at Seigneurie.
• A total of 262 grab and channel samples were collected, including 94.5 meters of channel sampling on the Seigneurie property; assay results are currently pending.

Key Details

• Properties Covered: Seigneurie, Bardy, Blanchette, and Sabot (all 100% owned).
• Fieldwork Period: October 13 to November 5, 2025.
• Sampling Volume: 262 grab and channel samples collected across all four properties.
• Seigneurie Property Specifics:
  • 94.5 meters of channel sampling completed (average sample length 1.5 meters).
  • Property recently extended to the southwest to include a historical REE-anomalous carbonatite subcrop identified by the Quebec Ministry of Natural Resources and Forestry (MRNF) in 2015.
  • Numerous pegmatites with REE potential confirmed.
  • Identification of a prospective trend expanding upon the 2015 MRNF-reported subcrop.
• Blanchette Property Specifics:
  • Discovery of carbonatite boulders and subcrops.
  • Spatial association with an interpreted circular magnetic feature visible on regional airborne geophysical maps.
  • Identified as a newly discovered location not previously sampled.
• Geological Observations:
  • Identification of a diverse suite of lithologies including pegmatites, carbonatites, mafic intrusives, volcanics, metasedimentary units, and gneiss.
  • Focus on critical minerals including Niobium (Nb), Neodymium (Nd), Praseodymium (Pr), Dysprosium (Dy), Yttrium (Y), and other related elements.
• Analytical Work:
  • Samples submitted to ALS Laboratories in Lachine, Montreal.
  • ME-MS71L: Used for REE-bearing granitic pegmatite and carbonatite units.
  • PGM-23 and ME-MS61: Used for mafic and ultramafic units prospective for Ni-Cu-PGE mineralization.
• Status: Assay results are pending and will be released once received, compiled, and reviewed by the technical team.

Notable Quotes

• "Our fall 2025 phase 1 program has significantly improved our understanding of the geological framework across our Quebec properties. The identification of new carbonatite and pegmatite targets supports our view that these properties hold meaningful critical mineral potential," said Murray Nye, chief executive officer of North American Niobium.