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Transition Metals and 1930153 ON Ltd Sell the Fostung Tungsten Property for US$5,000,000 Cash

Mergers & Acquisitions

Transition Metals and 1930153 ON Ltd Sell the

Fostung Tungsten Property for US$5,000,000

Cash

Sudbury, Ontario--(Newsfile Corp. - June 27, 2025) - Transition Metals Corp. (TSXV: XTM) ("Transition"

or "the Company"), together with 1930153 ON Ltd. ("1930153 ON"), a private Ontario corporation,

collectively the "Vending Parties", are pleased to announce the joint sale of their respective 50%

interests in the Fostung Tungsten Property ("the Property") to UAMY Cobalt Corporation ("UAMY"), a

wholly owned subsidiary of United States Antimony Corporation (NYSE: UAMY), a public company listed

on the New York Stock Exchange.

Transaction Summary

Under the terms of the Agreement dated June 26

th

, 2025, UAMY has acquired a 100% undivided

interest in the Property from the Vending Parties for total consideration of US$5,000,000 in cash

(approximately C$7.0 million) and the grant of a 0.5% Net Smelter Return (NSR) royalty. Proceeds from

the transaction will be split equally between Transition and 1930153 ON, each receiving US$2,500,000

and 0.25% NSR for their respective 50% interests in the Property. The sale constitutes an arm's length

transaction between all three entities. No Finders' Fees were paid in relation to this transaction.

Scott McLean, CEO of Transition Metals, commented:

"We are pleased to transact with UAMY, a

leading strategic critical metals company which is well positioned to advance Fostung for the benefit of

stakeholders, including the nearby communities of Espanola and Sudbury.

The proceeds from the

sale of just one of our 18 projects highlights the depth of our portfolio, which includes multiple mineral

exploration projects, royalties, milestone payments, and marketable securities. Furthermore, this

transaction shows the benefit of our ability to utilize our portfolio to generate non dilutive cash to help

us advance key projects like Pike Warden and Saturday Night."

Mark Trevisiol, P.Eng., President of 1930153 Ontario Ltd., commented:

"China controls over 80%

of the world's tungsten production and has put restrictions on its export to foreign countries. Classified

as a critical mineral, Ontario is fortunate to have a tungsten deposit of this size to counter the control of

this important alloying element. UAMY, a North American-based company and a leader in the mining

and processing of critical minerals brings both the necessary company values and financial strength

to develop the property in a sustainable method benefiting all stakeholders."

About the Fostung Property

The Fostung Property consists of 50 mining claims covering approximately 1,114 hectares. The Property

lies within Foster Township in the Sudbury Mining District of Ontario, Canada, approximately 8

kilometres southeast of the town of Espanola. An all-weather gravel road provides excellent access from

the property to Espanola, where Trans-Canada Highway #17 is located. The city of Sudbury is located

approximately 70 kilometres to the northeast.

The Property hosts a near surface historic inferred mineral resource, estimated in 2007 by SRK

Consulting, of 12.4 million tonnes grading 0.213% WO

, using a cut-off grade of 0.125%¹. SRK based

this estimate on data from a total of 44 diamond drill holes totaling 9,185 metres.

¹ Source: NI 43-101 Technical Report on Resources, Golden Predator Mines Inc., Fostung Project, Foster Township, Ontario, Canada. Prepared

by SRK Consulting, November 30, 2007.

The Company advises that a Qualified Person has not completed sufficient work to classify the historical

estimate as a current mineral resource or mineral reserve, and the Company is not treating the historical

estimate as such. The Company has not independently verified the sample data or grades presented in

the historical estimate and considers them to be historical in nature. Furthermore, Transition has not

undertaken the necessary work to verify or upgrade the historical estimate and has not assessed the

amount of work required to do so. The Company is also unaware of any more recent mineral resource

estimates; however, Transition is aware that UAMY plans to commission an updated technical report,

compliant with SEC SK 1300 regulations, which may include results from recent exploration programs

conducted on the Property by the Vending Parties.

A portion of the Property is subject to an underlying 1% Net Smelter Return (NSR) royalty, with UAMY

retaining the right to buy back 0.5% of the NSR for CAD $500,000 (

see news release dated November

14, 2019

).

Qualified Person

The scientific and technical content of this release has been reviewed and approved by Mr. Benjamin

Williams, P.Geo. (PGO), Senior Geologist at Transition Metals Corp. and a Qualified Person as defined

by NI 43-101. In addition, the scientific and technical content of this release has also been reviewed and

approved by Mr. Mark Trevisiol, P.Eng. (PEO), President of 1930153 Ontario Ltd, and a Qualified

Person as defined by NI-43-101.

About Transition Metals Corp.

Transition Metals Corp. (TSXV: XTM) is a Canadian-based, multi-commodity explorer. Its award-winning

team of geoscientists has extensive exploration experience which actively develops and tests new ideas

for discovering mineralization in places that others have not looked, often allowing the Company to

acquire properties inexpensively. Joint venture partners earn an interest in the projects by funding a

portion of higher-risk drilling and exploration, allowing Transition to conserve capital and minimize

shareholder's equity dilution.

About 1930153 ON Ltd.

1930153 ON Ltd. is a private Sudbury-based company with interests in Northern Ontario properties, that

is focused on advancing mineral projects in Ontario in part by applying modern extraction and

processing technologies.

About United States Antimony Corporation

United States Antimony Corporation ("USAC") and its subsidiaries in the U.S., Mexico, and Canada sell

antimony, zeolite, and precious metals primarily in the U.S. and Canada. USAC processes third party

ore primarily into antimony oxide, antimony metal, antimony trisulfide, and precious metals at its facilities

located in Montana and Mexico. Antimony oxide is used to form a flame-retardant system for plastics,

rubber, fiberglass, textile goods, paints, coatings, and paper, as a color fastener in paint, and as a

phosphorescent agent in fluorescent light bulbs. Antimony metal is used in bearings, storage batteries,

and ordnance. Antimony trisulfide is used as a primer in ammunition. USAC also recovers precious

metals, primarily gold and silver, at its Montana facility from third party ore. At its Bear River Zeolite

("BRZ") facility located in Idaho, the Company mines and processes zeolite, a group of industrial

minerals used in water filtration, sewage treatment, nuclear waste and other environmental cleanup, odor

control, gas separation, animal nutrition, soil amendment and fertilizer, and other miscellaneous

applications. USAC has acquired mining claims and leases located in Alaska and Ontario, Canada and

leased a metals concentration facility in Montana in 2024 that could expand its operations as well as its

product offerings.

Cautionary Note on Forward-Looking Information

Except for statements of historical fact contained herein, the information in this news release constitutes

"forward-looking information" within the meaning of Canadian securities law. Such forward-looking

information may be identified by words such as "plans", "proposes", "estimates", "intends", "expects",

"believes", "may", "will" and include without limitation, statements regarding estimated capital and

operating costs, expected production timeline, benefits of updated development plans, foreign exchange

assumptions and regulatory approvals. There can be no assurance that such statements will prove to be

accurate; actual results and future events could differ materially from such statements. Factors that could

cause actual results to differ materially include, among others, metal prices, competition, risks inherent in

the mining industry, and regulatory risks. Most of these factors are outside the control of the Company.

Investors are cautioned not to put undue reliance on forward-looking information. Except as otherwise

required by applicable securities statutes or regulation, the Company expressly disclaims any intent or

obligation to update publicly forward-looking information, whether as a result of new information, future

events or otherwise.

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the

policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this

release.

Further information is available at

www.transitionmetalscorp.com

or by contacting:

Scott McLean

President and CEO

Transition Metals Corp.

Tel: (705) 669-1777

To view the source version of this press release, please visit

https://www.newsfilecorp.com/release/257004