North American Niobium says Seigneurie drill hole confirms heavy rare earth mineralization, grades modest

• North American Niobium and Critical Minerals reported early drill assays confirming heavy rare earths and niobium mineralization at its Seigneurie project in Québec.
• Hole SGN-2026-007 returned 32.20 m averaging 528 ppm heavy rare earth oxide near surface, with yttrium oxide about two-thirds.
• The same hole returned 10 m averaging 76.7 ppm dysprosium oxide from 128 m to 138 m.
• The company flagged grades as modest, with more work needed to determine whether mineralization is economically viable.
• Automated mineralogy work is underway to identify mineral hosts and guide next exploration steps across its Québec portfolio.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. North American Niobium And Critical Minerals Corp. published the original content used to generate this news brief via GlobeNewswire (Ref. ID: 202607032050PRIMZONEFULLFEED9756928) on July 04, 2026, and is solely responsible for the information contained therein.