First American completes site visit to Seigneurie

Executive Summary

• First American Uranium Inc. conducted a site visit to its Seigneurie property in Quebec on October 22, 2025, resulting in the discovery of a new pegmatite outcrop.
• The company has confirmed over 27 kilometers of prospective niobium-rare-earth-element (Nb-REE) trends, delineated through the integration of regional airborne magnetic data and government geological mapping.
• The new outcrop, measuring at least four meters in width, exhibits mineralogical characteristics similar to the main prospect and extends the known footprint of the mineralized system, supporting plans for continued mapping, sampling, and potential future drilling.

Key Details

• New Discovery: A pegmatite outcrop was discovered during the site visit with a minimum width of at least four meters.
• Mineralogy: The outcrop contains quartz, feldspar, biotite, and magnetite, and responds to scintillometer readings.
• Geological Context: The new outcrop shares mineralogical and geological characteristics with the main Seigneurie prospect, extending the known footprint of the potentially mineralized Nb-REE system.
• Prospective Trends: Current interpretations delineate over 27 kilometers of prospective trends. These trends coincide with interpreted magnetic lineaments and mapped quartz-syenite intrusions, which are favorable settings for Nb-REE mineralization.
• Historical Data: Previous exploration by Soquem in 1978 interpreted a width of at least 50 meters for the prospect; current field observations suggest this interpretation remains reasonable, though true width is difficult to determine due to outcrop extent.
• Current Activities: Channel sampling, detailed geological mapping, and prospecting are underway across the Seigneurie property.
• Next Steps: Field teams will continue mapping, sampling, and prospecting through the fall season. Results will guide the next phase of exploration, including potential drill targeting.
• Infrastructure: The property benefits from proximity to the St. Lawrence River and direct access to Hydro-Quebec power lines.

Notable Quotes

• Murray Nye, CEO: "Our recent site visit reinforces our belief that the Seigneurie property could develop into one of the most compelling niobium and rare earth element projects in North America... The scale of the mineralized system, combined with the discovery of a new pegmatite exposure and 27 km of prospective trends, positions Seigneurie as a truly exciting opportunity for the company."
• Clyde McMillan, PGeo, Technical Adviser: "The Seigneurie Nb-REE prospect... demonstrates strong potential for niobium, rare earths and potentially other critical elements. The width interpreted by Soquem in 1978 of at least 50 metres appears reasonable based on current field observations... the geological continuity and scale are encouraging indications for follow-up work."