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Discovers New Pegmatite Outcrop During Site Visit

Exploration Programs

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First American Uranium Discovers New Pegmatite Outcrop During

Site Visit; Confirms 27 km of Prospective Nb-REE Trends at

Seigneurie, Quebec

Vancouver, BC, October 29, 2025 – First American Uranium Inc. (CSE: URM) (FSE: IOR)

(OTCPK: FAUMF) (“First American Uranium” , or the “Company”) is pleased to announce

the successful completion of a site visit to its Seigneurie Property, located in the Regional County

Municipality of La Haute-Côte-Nord in Quebec’s Grenville Proterozoic Province. The visit was

conducted on October 22, 2025, by Murray Nye, Chief Executive Officer and Clyde McMillan,

Technical Advisor.

Purpose and Key Findings

The objective of the visit was to validate previous exploration work completed on the Seigneurie

Nb-REE prospect and assess ongo ing field programs. During the visit, the team discovered a

pegmatite outcrop, with a minimu m width of at least a 4-metr e-wide (Figure 1), exhibiting

mineralogical and geological characteristics similar to those of the main Seigneurie Prospect. The

Figure 1: CEO, Murray Nye standing on newly discovered Pegmatite outcrop with potential for REE and other critical

elements. This outcrop is located 700m south-east of the Segneurie Nb-REE Prospect. The intrusion appears to strike

east-west and dips 45degrees to the south, with a minimum apparent thickness of 4-m identified on outcrop.

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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 underway across

the Seigneurie Property. Current geological inte rpretations made by the Company, integrating

regional airborne magnetic data with governme nt geological mapping, have delineated over 27

kilometres of prospective trends. These trends coincide with interpreted magnetic lineaments and

mapped quartz-syenite in trusions—favorable geol ogical settings for niobium and rare earth

element mineralization (Figure 2).

Figure 2: The Seigneurie Property is located near the St. Lawrence River coast, with a Hydro-Québec power line crossing

the property. Geological and geophysical interpretation has outlined approximately 27 km of prospective trends, exhibiting

characteristics similar to the 5 km-long highly prospective corridor hosting the Seigneurie Nb-REE prospect.

Management Commentary

5km-long highly prospective

niobium and rare-earth element trend

Seigneurie

Nb-REE

Prospect

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“Our recent site visit reinforces our view that the Seigneurie Property warrants continued

evaluation as a promising niobium and rare earth element exploration project” said Murray Nye,

CEO of First American Uranium. “ The scale of the mineralized system, combined with the

discovery of a new pegmatite exposure and 27kms of prospective trends, positions Seigneurie as a

truly exciting opportunity for th e Company. We are looking forw ard to advancing this project

through systematic exploration and unlocking its full potential.”

Clyde McMillan, P.Geo (OGQ#2193), Technical Advisor, 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 availabl e. 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-Qu ébec power lines. These logistical advantages

provide strong support for future exploration and potential development activities.

ABOUT FIRST AMERICAN URANIUM INC.

First American Uranium Inc. is a North Ameri can 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 (REE), niobium (Nb), and nickel-copper (Ni-Cu) occurrences, expanding the Company’s

footprint into critical minerals that are strategically important for energy and defense applications.

ON BEHALF OF THE BOARD OF DIRECTORS:

Murray Nye

Chief Executive Officer

1055 West Georgia Street, Suite 1500

Vancouver, BC V6E 0B6

Canada

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For further information, please contact:

Murray Nye, CEO

Email: [email protected]

Phone: +1 (416) 300-7398

CSE:URM

OTCPK:FAUMF

FSE:IOR

This news release does not constitute an offer to sell or a solicitation of an offer to buy any

securities in the United States. The securities described herein have not been and will not be

registered under the United States Securities Act of 1933, as amended (the “U.S. Securities Act”),

or any applicable state securities laws, and may not be offered or sold within the United States or

to, or for the account or benefit of, U.S. Persons unless registered under the U.S. Securities Act

and applicable state securities laws, or pursuant to an available exemption from such registration

requirements.

Forward-Looking Statements

This news release contains “f orward-looking statements” within the meaning of applicable

Canadian securities legislation. All statements in this release, other than st atements of historical

fact, that address events, results, outcomes or developments that the Company expects, anticipates

or intends to occur in the future, or that otherw ise reflect management’s expectations or beliefs

about future events, are forward-looking statem ents. Forward-looking statements are generally,

but not always, identified by the use of words and phrases such as “expects,” “plans,” “anticipates,”

“believes,” “intends,” “estimates ,” “projects,” “potential,” “oppor tunity,” “strategy,” “target,”

“forecast” and similar expressions, or statements that events, conditions or results “will,” “would,”

“may,” “could,” or “should” occur or be achieved.

Forward-looking statements in this release include, but are not limited to: (i) statements regarding

the Company’s properties and their mineral prospectivity; (ii) the Company’s planned exploration,

development and evaluation activities on the Company’s properties; and (iii) the potential for the

Grenville Province to host significant rare earth element, niobium, nickel-copper or other critical

mineral deposits. Such forward-looking statemen ts are based on the Company’s current plans,

intentions, expectations and be liefs and are subject to certai n assumptions, including, without

limitation, assumptions that required regulatory approvals will be obtained in a timely manner,

that financing will be available on reasonable terms, and that exploration results will continue to

support the prospectivity of the Properties.

Although the Company believes the e xpectations expressed in such forward-looking statements

are reasonable, such statements are not guarantee s of future performance or outcomes and actual

results may differ materially from those expressed or implied in the forward-looking statements.

Factors that could cause actual resu lts to differ materially from those anticipated include, but are

not limited to: the timing and r eceipt of required regulatory approvals; changes in commodity

prices and market conditions; the availability of capital and financing on acceptable terms; general

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economic, business and political conditions; risk s inherent in mineral exploration and

development, including operational risks, geol ogical uncertainties, en vironmental risks and

accidents; changes in government regulation or policy; and the speculative nature of mineral

exploration and development. Additional inform ation regarding risks an d uncertainties faced by

the Company is available in the Compa ny’s public disclosure record on SEDAR+

(www.sedarplus.ca).

Readers are cautioned that forwar d-looking statements are not guarantees of future performance,

and undue reliance should not be placed on them. The forward-looking stat ements contained in

this release are made as of the date hereof a nd are based on information currently available and

management’s beliefs, estimates, expectations and opinions at that time. Except as required by

applicable securities laws, the Company undertakes no obligation to update or revise any forward-

looking statements, whether as a result of new information, future events or otherwise.

Qualified Person

The scientific and technical information containe d in this news release has been prepared in

accordance with National Instrument 43-101 – Standards of Disclosure for Mineral Projects (“NI

43-101”). Clyde McMillan, P.Geo., a consultant to the Company and a Qualified Person as defined

under NI 43-101, has reviewed and approved the technical information contained herein.

The Canadian Securities Exchange does not accept responsibility for the adequacy or accuracy of

this release and has neither approved nor disapproved the contents of this press release