First American completes site visit to Seigneurie

Mr. Murray Nye reports FIRST AMERICAN URANIUM DISCOVERS NEW PEGMATITE OUTCROP DURING SITE VISIT; CONFIRMS 27 KM OF PROSPECTIVE NB-REE TRENDS AT SEIGNEURIE, QUEBEC First American Uranium Inc. has completed a site visit to its Seigneurie property, located in the regional county municipality of La Haute-Cote-Nord in Quebec's Grenville Proterozoic province. The visit was conducted on Oct. 22, 2025, by Murray Nye, chief executive officer, and Clyde McMillan, technical adviser. Purpose and key findings The objective of the visit was to validate previous exploration work completed on the Seigneurie niobium-rare-earth-element prospect and assess continuing field programs. During the visit, the team discovered a pegmatite outcrop, with a minimum width of at least four metres wide, exhibiting mineralogical and geological characteristics similar to those of the main Seigneurie prospect. The pegmatite contains quartz, feldspar, biotite and magnetite, and responds to the scintillometer. This new outcrop extends the known footprint of the potentially mineralized Nb-REE system and highlights the broader exploration opportunity across the property. Currently, channel sampling, detailed geological mapping and prospecting are under way across the Seigneurie property. Current geological interpretations made by the company, integrating regional airborne magnetic data with government geological mapping, have delineated over 27 kilometres of prospective trends. These trends coincide with interpreted magnetic lineaments and mapped quartz-syenite intrusions -- favourable geological settings for niobium and rare earth element mineralization. Management commentary "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 and warrants continued evaluation as a promising niobium and rare earth element exploration project," said Mr. Nye. "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. We are looking forward to advancing this project through systematic exploration and unlocking its full potential." Clyde McMillan, PGeo (OGQ No. 2193), technical adviser, added: "The Seigneurie Nb-REE prospect, previously explored for uranium and thorium, 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. Although the true width is challenging to determine due to the outcrop's extent, the geological continuity and scale are encouraging indications for follow-up work." Next steps The company's field teams will continue mapping, sampling and prospecting throughout the fall season, with results to be announced once available. These data will guide the next phase of exploration, including potential drill targeting. Strategic advantages The Seigneurie property benefits from excellent infrastructure access, situated near the St. Lawrence River and directly crossed by Hydro-Quebec power lines. These logistical advantages provide strong support for future exploration and potential development activities. About First American Uranium Inc. First American is a North American mineral exploration company focused on the acquisition and development of precious, base and critical mineral assets. Its portfolio includes the Silver Lake property in British Columbia's Omineca mining division and a recently acquired land package in Quebec's Grenville province. The Quebec properties add exposure to rare earth elements, niobium and nickel-copper occurrences, expanding the company's footprint into critical minerals that are strategically important for energy and defence applications. The scientific and technical information contained in this news release has been prepared in accordance with National Instrument 43-101 (Standards of Disclosure for Mineral Projects). Clyde McMillan, PGeo, a consultant to the company and a qualified person as defined under NI 43-101, has reviewed and approved the technical information contained herein. We seek Safe Harbor.