Vancouver, BC – TheNewswire - April 21, 2026 – Vanguard Mining Corp. ("Vanguard" or the "Company") (CSE: UUU | OTCID: UUUFF | Frankfurt: SL51) is pleased to provide a corporate update highlighting its strategic transition toward uranium exploration and development, and in connection with this repositioning, the Company is proposing to change its name to “Uranium One Mining Corp.” (the “Name Change”).

The Name Change is intended to reflect the Company’s expanded focus on its uranium portfolio, including the Yuty Prometeo Project located in Paraguay, the Nuclean Uranium Project in the Athabasca Basin, Saskatchewan, and the Quark Uranium Property, also located in the Athabasca Basin, as well as potential future acquisitions in the uranium sector.

David C. Greenway, President and CEO of Vanguard Mining Corp., commented: “The proposed name change to Uranium One Mining Corp. better reflects the Company’s strategic direction and our commitment to building a focused uranium portfolio aligned with global energy trends. Global electricity demand is projected to exceed 30 trillion kilowatt-hours annually by the early 2030s, driven in large part by the rapid expansion of AI-driven data centres, electrification of transportation, and increasing energy demand across emerging markets. AI infrastructure alone is expected to require gigawatt-scale power capacity, placing unprecedented strain on existing energy systems. In this environment, nuclear energy is increasingly recognized as a critical solution for delivering reliable, carbon-free baseload power on scale. We believe uranium will play a central role in meeting these future energy needs, and our repositioning reflects our commitment to participating in this long-term structural shift while creating sustainable value for our shareholders.”

Share Consolidation

In conjunction with the proposed name change and strategic repositioning, the Company intends to complete a consolidation of its issued and outstanding common shares on a 3.5:1 basis. The consolidation is expected to enhance the Company’s capital structure and better position it for future growth initiatives.

Further details regarding the effective date of the name change and share consolidation will be provided once finalized.

Registered holders of physical share certificates will receive a letter of transmittal by mail advising that the Name Change and Consolidation has been effected and will contain instructions on how to exchange share certificates evidencing pre-consolidated Common Shares for new share certificates representing the number of post-consolidated Common Shares to which they are entitled. No action is required for shares held by non-registered holders (shareholders who hold their shares through an intermediary) and outstanding Direct Registration System (“DRS”).

The Company believes the Name Change and strategic repositioning will enhance its visibility within the uranium sector and better align with investor interest in nuclear energy and critical minerals.

Upon completion of the Name Change, the Company’s common shares will continue to trade under the existing symbol “UUU” and will be assigned new CUSIP and ISIN numbers.

The Canadian Securities Exchange (the “CSE”) will publish a bulletin announcing the effective date of the Name Change in due course.

Uranium Projects Portfolio

Quark Uranium Project

The Quark Uranium Property consists of eight (8) mineral claims totaling approximately 28,746 hectares (approximately 71,030 acres) located in the Province of Saskatchewan, Canada, within the Athabasca Basin region. The property is situated in a well-established uranium-producing district in northern Saskatchewan that has historically accounted for a significant portion of global uranium production.

Nuclean Uranium Project

The Nuclean Uranium Project consists of seven exploration-stage mineral claims totaling approximately 23,424.90 hectares located in northern Saskatchewan, Canada, within the Athabasca Basin, widely recognized as one of the world’s premier uranium districts.

Yuty Prometeo Project

The Yuty Prometeo Project consists of the San Jose and Uno concessions, together covering approximately 90,000 hectares within the prospective Paraná Basin in southeastern Paraguay. The project is located adjacent to Uranium Energy Corp.’s Yuty Deposit. According to public disclosure by Uranium Energy Corp., the Yuty Deposit hosts an NI 43-101 compliant mineral resource of approximately 8.96 million pounds of U₃O₈. The Company has not independently verified this information.

The Yuty Prometeo Project is located within a geological setting that is considered prospective for uranium mineralization based on regional geological characteristics and historical exploration data. Mineralization on adjacent or nearby properties is not necessarily indicative of mineralization on the Company’s properties.

Qualified Person

The scientific and technical information contained in this news release has been reviewed and approved by Lawrence Segerstrom, P.Geo., M.Sc., MBA, a consulting geologist who is a “Qualified Person” as such term is defined under National Instrument 43-101 – Standards of Disclosure for Mineral Projects (“NI 43-101”). Mr. Segerstrom is not at arm’s length to Vanguard and is therefore not independent for the purposes of NI 43-101.

About Vanguard Mining Corp.

Vanguard Mining Corp. is a Canadian mineral exploration company focused on the discovery and development of high-value strategic minerals. The Company is currently advancing uranium exploration projects in the United States and Paraguay, with a focus on identifying and developing assets critical to the global energy transition. Vanguard is committed to responsible exploration and value creation through the acquisition and advancement of highly prospective uranium properties.

All Stakeholders are encouraged to follow the Company on its social media profiles on LinkedIn, X.com, Facebook and Instagram and sign up for updates at Vanguardminingcorp.com

Neither the Canadian Securities Exchange nor its Regulation Services Provider (as that term is defined in the policies of the CSE) accepts responsibility for the adequacy or accuracy of this release.

On Behalf of the Board of Directors

“David Greenway”

David Greenway, CEO

For further information, please contact:

Vanguard Mining Corp.
Brent Rusin
Phone: +1 672-533-0348
E-Mail: brent@vanguardminingcorp.com
Website: vanguardminingcorp.com

U.S. Securities Law Disclaimer

The securities issuable pursuant to the Proposed Transaction have not, nor will they be registered under the United States Securities Act of 1933, as amended, and may not be offered or sold within the United States or to, or for the account or benefit of, U.S. persons in the absence of U.S. registration or an applicable exemption from the U.S. registration requirements. This news release shall not constitute an offer to sell or the solicitation of an offer to buy nor shall there be any sale of the securities in the United States or in any other jurisdiction in which such offer, solicitation or sale would be unlawful.

Disclaimer for Forward-Looking Information

This news release contains certain forward-looking statements and forward-looking information (collectively, “Forward-Looking Statements”) within the meaning of applicable Canadian and U.S. securities laws. All statements, other than statements of historical fact, included herein are Forward-Looking Statements, including, without limitation, statements regarding: the proposed name change of the Company (the “Name Change”); the proposed consolidation of the Company’s issued and outstanding common shares (the “Consolidation”); the anticipated timing and completion of the Name Change and Consolidation; the Company’s strategic repositioning and focus on uranium exploration and development; the anticipated benefits of such initiatives; the completion of any proposed transactions; and the Company’s business objectives, exploration plans, and strategic direction.

When used in this news release, words such as “anticipate”, “believe”, “estimate”, “expect”, “target”, “plan”, “forecast”, “may”, “will”, “schedule”, and similar expressions are intended to identify Forward-Looking Statements.

Forward-Looking Statements in this news release include, without limitation: statements relating to the completion and timing of the Name Change and Consolidation; the receipt of all required regulatory, exchange, and third-party approvals and consents; the anticipated benefits of the Company’s strategic repositioning; the Company’s future exploration activities and development plans; and broader market and industry expectations, including those relating to uranium demand.

Forward-Looking Statements are based on management’s current expectations, estimates, projections, beliefs, and assumptions as of the date of this news release and are subject to a number of known and unknown risks, uncertainties, and other factors that could cause actual results to differ materially from those expressed or implied by such Forward-Looking Statements. These risks and uncertainties include, but are not limited to: the risk that the Name Change or Consolidation may not be completed on the terms described herein or at all; the failure to obtain necessary approvals in a timely manner or at all; changes in market conditions; risks inherent in the mineral exploration and development industry; uncertainties relating to the availability of financing; fluctuations in commodity prices, including uranium prices; changes in applicable laws, regulations, or government policies; and general economic, market, and business conditions.

Although the Company believes that the assumptions and expectations reflected in the Forward-Looking Statements are reasonable, undue reliance should not be placed on such statements. The Forward-Looking Statements contained herein are made as of the date of this news release and are expressly qualified in their entirety by this cautionary statement. The Company undertakes no obligation to update or revise any Forward-Looking Statements, except as required by applicable securities laws.

Readers are cautioned that the foregoing list of risks and uncertainties is not exhaustive. Additional information regarding these and other risk factors is available in the Company’s public disclosure documents filed on SEDAR+ at www.sedarplus.ca

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