File: '\\swfile\EmailIn\20251231 171305 Attachment 251231 NR completion of Private Placement.docx'

ELEMENT ONE COMPLETES FLOW-THROUGH FINANCING

RAISING $169,600

Exploration on Element One's Hy Project successfully identified nickel-bearing ultramafic units that will be tested to evaluate hydrogen-stimulation and nickel-silicate extraction potential.

Vancouver, B.C. - December 31, 2025 - Element One Hydrogen & Critical Minerals Corp. ("Element One" or the "Company") (CSE: EONE) is pleased to announce that it has closed the non-brokered private placement for total gross proceeds of $169,600 (the "Offering").

The Company has allotted and issued 1,130,667 units (the "FT Units") at a price of $0.15 per FT Unit. Each unit consists of one "flow-through shares" of the Company, within the meaning of the Income Tax Act (Canada) (each, a "FT Share") and one transferable flow through share purchase warrant (a "FT Warrant"), with each FT Warrant entitling the holder to acquire one additional flow through common share at an exercise price of $0.30 for a period of twelve (12) months from the closing date.

The gross proceeds from the FT Units will be used by the Company to incur eligible "Canadian exploration expenses" that qualify as "flow-through critical mineral mining expenditures" as such terms are defined in the Income Tax Act (Canada) (the "Qualifying Expenditures") related to the Company's Critical Mineral projects on or before December 31, 2026. All Qualifying Expenditures will be renounced in favour of the subscribers of the FT Shares effective December 31, 2025.

In connection with the Offering, the Company paid aggregate cash fees of $9,586 and issued 63,786 non-transferable finder warrants (each, a "Finder Warrant") to certain eligible arm's-length finders who introduced subscribers to the Placement. Each Finder Warrant entitles the holder to purchase one common share for a period of one (1) year at a price of CDN$0.15 per common share. All securities issued under the Placement are subject to a hold period of four months and one day expiring on May 1, 2026.

About Element One Hydrogen & Critical Minerals Corp.

Element One Hydrogen & Critical Minerals Corp. (CSE: EONE) is a Canadian company focused on the exploration, development, and commercialization of geologic hydrogen and critical mineral resources, as well as breakthrough hydrogen-generation technologies. The company's projects include the Foggy Mountain critical minerals project as well as projects in Alaska and British Columbia that are prospective for hydrogen production through stimulation in the subsurface as well as critical and battery metals.

Stay connected by following us on:

X (formerly Twitter) at www.x.com/Element_One_H2

LinkedIn www.linkedin.com/company/element-one-h2

YouTube at www.youtube.com/@ElementOneHydrogen

For further information visit our website at www.e1-h2.com or to connect directly, please reach out to Tim Johnson at tjohnson@e1-h2.com or 250.668.3161.

On behalf of the Board of Directors:

Brad Kitchen, CEO

Element One Hydrogen & Critical Minerals Corp.

e: bkitchen@e1-h2.com

c: 604.506.7555

This press release contains "forward-looking information" that is based on the Company's current expectations, estimates, forecasts, and projections. This forward-looking information includes, among other things, statements with respect exploration and development plans, as anticipated or at all. The words "will", "anticipated", "plans" or other similar words and phrases are intended to identify forward-looking information. Forward-looking statements in this news release includes statements related to the Transaction, receipt of all necessary regulatory approvals to the Transaction, satisfaction of the conditions precedent to the Transaction, and related matters. Forward-looking information is subject to known and unknown risks, uncertainties and other factors that may cause the Company's actual results, level of activity, performance, or achievements to be materially different from those expressed or implied by such forward looking information.

Neither the Canadian Securities Exchange nor its Regulation Services Provider accept responsibility for the adequacy or accuracy of this release.