NIOB Bardy assays confirm rare earth mineralization

Results continue to validate targeting approach

Vancouver, British Columbia, Sept. 15, 2026 (GLOBE NEWSWIRE) -- Assays from three more drill holes at North American Niobium and Critical Minerals Corp.’s (CSE: NIOB) (FSE: KS82.F) (OTCQB: NIOMF) (“NIOB” or the “Company”) Bardy property in Québec confirm previously announced visual observations . Holes BBY-2026-001, BBY-2026-002, and BBY-2026-005 have all intersected pegmatite. These assay results are in addition to those from BBY-2026-006, which intersected an 8.0-metre interval of syenitic pegmatite from 139.70 m to 147.70 m , including a 0.20-metre zone that included allanite in the core.

“The goal of our 2026 diamond drilling program at Bardy was to intersect niobium and rare earth bearing systems,” said Murray Nye, NIOB’s Chief Executive Officer, “and the latest results show that we are on the right track. Bardy’s eight holes were all collared at targets where radon data, high resolution magnetics, and surface mapping all intersect, and we’re pleased that the results continue to be validated.”

Highlights from assays

Hole BBY-2026-001: 2.05 m from 133.75 m to 135.8 m averaging 0.43% total rare earth oxides (TREO); the composite came from a small syeno-granitic pegmatite intrusion and surrounding rocks. The intrusion was slightly magnetic and contained biotite.

Hole BBY-2026-002: 14.6 m from 132.4 m to 147 m averaging 0.12% TREO; the composite of high rare earth element (REE) grades was found within an intermediate intrusive rock (monzonite/mangerite) cut by small syeno-granitic pegmatitic injections.

Smaller intervals with REE ≥ 0.1% that didn’t make it as composites were found in holes BBY-2026-001, BBY-2026-002, and BBY-2026-005. Details are presented in Table 1 and shown on the cross sections of figures 1 and 2, along with the composites.

Table 1: Additional intervals TREO% results

Note: Composite intervals were calculated with a cutoff grad