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Vancouver, British Columbia - February 27, 2026 – TheNewswire – Vault Strategic Mining Corp . (TSXV:KNOX) (OTC:KNXFF) (FSE:M85) ("VAULT" or the "Company")  announces it has appointed Mr. Quinn Field-Dyte to the role of Chief Executive Officer ("CEO") in addition to his ongoing responsibility to the Board of Directors.

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“I am honored to step into the role of Chief Executive Officer of Vault Strategic Mining at a time of unprecedented strength across global commodity markets and what I believe is a pivotal moment in the Company’s evolution. The world is rapidly repricing the strategic importance of critical minerals, and Vault is uniquely positioned within that landscape. I look forward to embracing this new challenge as CEO while continuing to fulfill my responsibilities to the Board of Directors. Said Mr. Field-Dyte, CEO & Director of Vault Strategic Mining Corp. On behalf of the Company, I would also like to sincerely thank Mr. Horsley for his leadership and dedication. His contributions to Vault Strategic Mining have been invaluable, and we wish him continued success in his future endeavors. Together, we remain focused on disciplined execution, strategic growth, and unlocking long-term value for our shareholders.”

Quinn Field-Dyte is a senior capital markets and mining executive with over two decades of experience in public company operations, mergers and acquisitions, corporate finance, and board governance within the natural resources sector. His career has been centered on supporting exploration and development stage mining companies through disciplined capital allocation, strategic growth initiatives, and effective engagement with public markets.

Mr. Field-Dyte has extensive experience navigating the full lifecycle of public mining companies, including corporate structuring, financings, asset acquisitions and divestitures, regulatory compliance, and shareholder communications. He has played a key role in evaluating mineral assets, advancing exploration strategies, and aligning corporate objectives with market conditions and long-term value creation.

At Vault Strategic Mining Corp., Mr. Field-Dyte contributes his deep expertise in corporate strategy, financial oversight, and governance. He is actively involved in guiding the Company’s focus on historically advanced mining assets across North America, supporting disciplined exploration planning, capital markets strategy, and corporate development initiatives aligned with critical and strategic mineral opportunities. Earlier in his career, Mr. Field-Dyte spent several years as an investment adviser, providing him with a strong foundation in financial analysis, risk management, and investor relations. This background continues to inform his practical, market-aware approach to decision-making at the board level.

Mr. Field-Dyte studied at Capilano University and Langara College. He is recognized for his strong understanding of public markets, his ability to execute complex transactions, and his commitment to building shareholder value through prudent management and strategic focus within the mining sector.

The Company has accepted Mr. Robert “Nick” Horsley resignation from the Board of Directors and CEO position effective immediately. Vault wishes to thank him for his contributions to Vault Strategic Mining Corp. and wishes him all the best in his future endeavors.

Furthermore, the Company announces that Vault’s Management will attend the upcoming Prospectors and Developers Association of Canada (" PDAC" ) conference to be held March 1 – 4, 2026, at the Metro Toronto Convention Centre, Toronto, Canada.

Vault’s team members are happy to accept requests for meetings by current or potential investors. Please schedule a meeting by email (info@vaultstrategic.com) or phone ( 604.343.4338 ).

Restricted Stock Units (“RSUs”)

Furthermore, the Company announces that it has issued 1,180,000 restricted RSUs to certain directors, officers and consultants of the Company pursuant to its Omnibus Equity Incentive Plan. The RSUs will vest in twelve (12) months from the date of issuance and will be settled in common shares of the Company. The RSUs are subject to the terms and conditions of the Omnibus Equity Incentive Plan.

About Vault Strategic Mining Corp.

Vault Strategic Mining Corp. is a North American resource company focused on the acquisition and advancement of strategic and critical mineral projects located in top-tier mining jurisdictions. The Company emphasizes historical and underexplored assets with potential for value creation through modern exploration and disciplined development.

Vault Strategic Mining Corp. trades on the TSX Venture Exchange (TSXV: KNOX), OTC Markets (OTC: KNXFF), and the Frankfurt Stock Exchange (FSE: M85).

On behalf of the Board:

Vault Strategic Mining Corp.

" Quinn Field-Dyte "

Chief Executive Officer and Director

Tel: 604.343.4338 | Email: info@vaultstrategic.com

ANY SECURITIES REFERRED TO HEREIN WILL NOT BE REGISTERED UNDER THE U.S. SECURITIES ACT OF 1933 (THE "1933 ACT") AND MAY NOT BE OFFERED OR SOLD IN THE UNITED STATES OR TO A U.S. PERSON IN THE ABSENCE OF SUCH REGISTRATION OR AN EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE 1933 ACT.

NOT FOR DISTRIBUTION TO U.S. NEWSWIRE SERVICES OR FOR DISSEMINATION IN THE UNITED STATES. ANY FAILURE TO COMPLY WITH THIS RESTRICTION MAY CONSTITUTE A VIOLATION OF U.S. SECURITIES LAW.

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

Disclaimer for Forward-Looking Information

This release includes forward-looking statements regarding DIA, and the Letain Project, which may include, but is not limited to, statements with respect to the completion of the acquisition of the Letain Project, and the ability to obtain regulatory approvals, and other factors. Often, but not always, Forward-looking statements can be identified by the use of words such as "plans", "is expected", "expects", "scheduled", "intends", "contemplates", "anticipates", "believes", "proposes", "estimates" or variations of such words and phrases, or state that certain actions, events or results "may", "could", "would", "might" or "will" be taken, occur or be achieved. Such statements are based on the current expectations of the management of each entity. The forward-looking events and circumstances discussed in this release, including completion of the acquisition of the Letain Project, may not occur by certain specified dates or at all and could differ materially as a result of known and unknown risk factors and uncertainties affecting the Company, including the risk that DIA may not obtain all requisite approvals for the acquisition, including the approval of the TSXV, risks of the resource industry, failure to obtain any other required regulatory approvals, economic factors, any estimated amounts, timing of the acquisition and requited payments, the equity markets generally and risks associated with growth, exploration and development. Although DIA has attempted to identify important factors that could cause actual actions, events or results to differ materially from those described in forward-looking statements, there may be other factors that cause actions, events or results to differ from those anticipated, estimated or intended. No forward-looking statement can be guaranteed. Except as required by applicable securities laws, forward-looking statements speak only as of the date on which they are made DIA undertaked no obligation to publicly update or revise any forward-looking statement, whether as a result of new information, future events, or otherwise.

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