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Ucore Executes Supply Agreement with Critical Metals Corp.

Partnerships & JV

85401206.3

Ucore Executes Supply Agreement

with Critical Metals Corp.

Halifax, Nova Scotia August 26, 2025 – Ucore Rare Metals Inc. (TSXV: UCU) (OTCQX:

UURAF) (“Ucore” or the “Company”) is pleased to announce the execution of a Non-binding

Letter of Intent (“LOI”) with Critical Metals Corp. (NASDAQ: CRML) (“CMC”) for a long-term

offtake agreement to secure heavy rare earth element feedstock from CMC’s Tanbreez

Project in southern Greenland.

Under the terms of the proposed arrangement, Critical Metals Corp. intends to supply Ucore

with a rare earth product from Tanbreez over an initial 10-year term. This material will be used

as feedstock for Ucore’s Strategic Metals Complex (SMC) in Alexandria, Louisiana, a facility

supported by both the U.S. Department of Defense and the State of Louisiana. Smaller

volumes will initially be processed at Ucore’s Commercial Demonstration Facility (“CDF”) in

Kingston, Ontario.

“Critical Metals Corp’s Tanbreez offers tremendous opportunities for Ucore given the

significant concentration of heavy rare earths it contains, which are essential for the

production of rare earth permanent magnets,” said Pat Ryan, Chairman and CEO of Ucore.

“Both Critical Metals Corp and Ucore share a vision to lessen China’s grip of the rare earth

ecosystem in the West, and we look forward to our partnership, positioning us both to meet

the growing demand for rare earths while addressing national security challenges.”

“Ucore’s refining capabilities, together with feedstock from the Tanbreez project, has the

potential to fill key gaps in the western rare earth supply chain ,” said Tony Sage, CEO and

Executive Chairman of Critical Metals Corp. “ These materials are critical to a number of

western defense and consumer applications and we look forward to teaming up with Ucore

and their exceptional team to support the development of a robust supply chain in America

that isn’t reliant on China.”

The non-binding LOI sets out the parties ’ intentions to negotiate and execute a Definitive

Offtake Agreement. Terms of the LOI include the delivery of a mixed rare earth carbonate or

oxide, with specifications to be agreed to, over a multi-year term commencing on the later of

July 1, 2027 or commercial production. The execution of a Definitive Offtake Agreement

remains subject to customary conditions including completion of due diligence, finalization of

commercial terms, and necessary approvals.

# # #

About Ucore Rare Metals Inc.

Ucore is focused on rare - and critical -metal resources, extraction, beneficiation, and

separation technologies with the potential for production, growth, and scalability. Ucore ’s

vision and plan is to become a leading advanced technology company, providing best -in-

class metal separation products and services to the mining and mineral extraction industry.

Through strategic partnerships, this plan includes disrupting the People’s Republic of China’s

control of the North American REE supply chain through the near -term development of a

heavy and light rare-earth processing facility in the US State of Louisiana, subsequent SMCs

in Canada and Alaska and the longer-term development of Ucore’s 100% controlled Bokan-

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Dotson Ridge Rare Heavy REE Project on Prince of Wales Island in Southeast Alaska, USA

(“Bokan”).

Ucore is listed on the TSXV under the trading symbol “UCU” and in the United States on the

OTC Markets’ OTCQX® Best Market under the ticker symbol “UURAF.”

For further information, please visit www.ucore.com.

Forward-Looking Statements

This press release includes certain statements that may be deemed “forward-looking

statements”. All statements in this release (other than statements of historical facts) that

address future business development, technological development and/or acquisition activities

(including any related required financings), timelines, events, or developments tha t the

Company is pursuing are forward -looking statements. Although the Company believes the

expectations expressed in such forward -looking statements are based on reasonable

assumptions, such statements are not guarantees of future performance or results, and actual

results or developments may differ materially from those in forward-looking statements.

Regarding the disclosure in the press release above about the government support for Ucore,

the Company has assumed that the applicable projects (including each of the associated

milestones) will be completed satisfactorily and in accordance with the respective agreements

or letters of intent (as applicable) for such government support. For additional risks and

uncertainties regarding the Company , its business activities , its ability to qualify for and

receive any additional funding from any U.S. or Canadia n government, the CDF and the

aforementioned projects (generally), see the risk disclosure in the Company’s MD&A for Q1

2025 (filed on SEDAR+ on May 9, 2025) (www.sedarplus.ca) as well as the risks described

below. As noted above, the execution of a Definitive Offtake Agreement will be conditional

upon the parties agreeing on commercial terms, among other conditions precedent.

Regarding the disclosure above in the “About Ucore Rare Metals Inc.” section, the Company

has assumed that it will be able to procure or retain additional partners and/or suppliers, in

addition to Innovation Metals Corp. (“IMC”), as suppliers for Ucore’s expected future SMCs.

Ucore has also assumed that sufficient external funding will be found to continue and

complete the ongoing research and development work required at the CDF and also later

prepare a new National Instrument 43 -101 technical report that demonstrates that Bokan is

feasible and economically viable for the production of both REE and co -product metals and

the then prevailing market prices based upon assumed customer offtake agreements. Ucore

has also assumed that sufficient external funding will be secured to continue the development

of the specific engineering plans for the SMCs and their construction and eventual

commissioning and operations . Factors that could cause actual results to differ materially

from those in forward-looking statements include, without limitation: IMC failing to protect its

intellectual property rights in RapidSX ™; RapidSX ™ failing to demonstrate commercial

viability in large commercial -scale applications; Ucore not being able to procure additional

key partners or suppliers for the SMCs; Ucore not being able to raise sufficient funds to fund

the specific design and construct ion of the SMCs and/or the continued development of

RapidSX™; adverse capital -market conditions; unexpected due -diligence findings; the

emergence of alternative superior metallurgy and metal-separation technologies; the inability

of Ucore and/or IMC to retain its key staff members; a change in the legislation in Louisiana

or Alaska and/or in the support expressed by the Alaska Industrial Development a nd Export

Authority (AIDEA) regarding the development of Bokan; the availability and procurement of

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any required interim and/or long-term financing that may be required; and general economic,

market or business conditions.

Neither the TSXV nor its Regulation Services Provider (as that term is defined by the TSXV)

accept responsibility for the adequacy or accuracy of this release.

CONTACTS

Mr. Michael Schrider, P.E., Ucore Vice President and Chief Operating Officer, is responsible

for the content of this news release and may be contacted at 1.902.482.5214.

For additional information, please contact:

Mark MacDonald

Vice President, Investor Relations

Ucore Rare Metals Inc.

1.902.482.5214

[email protected]