NIOB’s Newest Seigneurie Assays Show Higher-Grade Heavy Rare Earth Mineralization

Vancouver, British Columbia, July 14, 2026 (GLOBE NEWSWIRE) -- Assays from a second hole are in from North American Niobium and Critical Minerals Corp.’s (CSE: NIOB) (FSE: KS82.F) (OTCQB: NIOMF) (NIOB or the Company) Seigneurie Project, and the dysprosium grades are nearly three times higher than in the first, previously reported, hole. Hole SGN-2026-003 also returned the highest niobium oxide grade from the drilling to date and copper. This confirms that the Seigneurie pegmatite system, located in Quebec’s Grenville Province, includes a higher grade zone of mineralization that warrants follow up.