NIOB Seigneurie Drill Hole Confirms Niobium and Unexpected Copper Mineralization — North American Niobium and Critical Minerals Corp.

Event summary

Drill hole SGN-2026-007 at NIOB's Seigneurie Project confirms niobium oxide grades similar to previous hole but over a longer interval, with unexpected copper mineralization.
Niobium oxide (Nb₂O₅) found at 842.3 ppm over 10 meters and 453 ppm over 7.3 meters, alongside 2,701.7 ppm copper over 3 meters.
Next steps include automated mineralogy study to identify mineral hosts for niobium and rare earths.
Seigneurie Project is the first systematic drill program targeting rare earths or niobium in the pegmatite system.

The big picture

NIOB's Seigneurie Project is part of a broader push to develop critical minerals in Québec’s Grenville Province, an area known for hosting diverse rare earth and critical mineral deposits. The discovery of niobium alongside unexpected copper adds complexity to the project's economic evaluation, while the systematic exploration approach positions NIOB as a key player in North America's critical minerals sector.

What we're watching

Mineralogy Analysis: How the automated mineralogy study will clarify the economic potential of niobium and rare earth distributions at Seigneurie.
Copper Potential: Whether the unexpected copper zone could add significant value to the project beyond niobium and rare earths.
Exploration Strategy: The pace at which NIOB advances exploration across its broader Québec portfolio following these results.