North American Niobium Seigneurie Step-out Drilling Confirms Pegmatite System Extends Laterally Over 1.5 kilometres

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[{"type":"text","content":"Another hole of winter drill program returns 53.05 cumulative metres of syenitic pegmatite typically associated with rare earth minerals (assays pending) Vancouver, British Columbia, May 12, 2026 (GLOBE NEWSWIRE) -- North American Niobium and Critical Minerals Corp. (CSE: NIOB) (FSE: KS82.F) (OTCQB: NIOMF) (NIOB or the Company) has completed a successful drill program at its Seigneurie project in Québec, delineating a pegmatite-syenite system that currently extends at least 1.5 kilometres east-west and 800 metres north-south. In addition to hits at previously disclosed SGN-2026-07 and SGN-2026-08—which intersected 211.25 and 108.60 cumulative metres of pegmatite associated with niobium and rare earth indicators—SGN-2026-003, SGN-2025-04, and SGN-2026-06 returned 11.73, 18, and 53.05 cumulative metres of pegmatite. Nine holes totaling just under 2,000 metres were drilled overall at Seigneurie. “We are seeing the same indicators across multiple holes: pegmatite, sustained radiometric responses, and the same quartz and magnetite associations logged in our central holes,” said Murray Nye, NIOB’s Chief Executive Officer. “With the upper contact of the syenite in SGN-2026-006 concealed beneath 120 metres overburden, the system could be larger than what we have drilled. In addition, step-out drilling has confirmed that the Seigneurie pegmatite-syenite system extends well beyond the central main hill. We are now waiting on assays.” Highlights SGN-2026-003 — collared approximately 800 metres west of the main central hill — intersected 11.73 metres of pegmatite, including a 7.70-metre interval with sustained high scintillometer response, associated with disseminated chalcopyrite and pyrite. Core has been assayed for gold and copper in addition to the standard niobium and rare earth element suite. SGN-2026-004—approximately 1.5 kilometres east of SGN-2026-003—intersected over 18 metres of pegmatite, confirming the Nb-REE pegmatite trend extends more than 1.5 kilometres of strike and approximately 800 metres of width across the property. SGN-2026-006—drilled on a 1970s airborne radiometric anomaly—intersected 53.05 metres of syenitic pegmatite (29.25 m pegmatite plus 23.80 m of pegmatitic, quartz-rich syenite). The syenite's upper contact is concealed beneath approximately an unusual 121.5 metres of overburden and may extend further to...

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