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Vancouver, British Columbia -  April 2, 2026 – TheNewswire – Vault Strategic Mining Corp .  (TSXV:KNOX) (OTC:KNXFF) (FSE:M850) ("VAULT" or the "Company")  is pleased to announce that it has engaged veteran geologist William “Bill” Feyerabend, CPG and Amazona Enterprises ( “Amazona” ) for a planned field exploration and reconnaissance program at the Company’s Mt. Wheeler Historical Tungsten Mine ( “Wheeler” ), a historical Tungsten project in Nevada, USA.

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Figure 1. Department of Interior – Bureau of Mines “Mine and Prospect Map of Wheeler Park” 1

Quinn Field-Dyte, Chief executive officer, commented: “We are pleased to have the opportunity to collaborate with Mr. Feyerabend and the team at Amazona. Following the recent acquisition, we are excited to commence our initial exploration activities at the Mt. Wheeler Tungsten Historical Mine without delay. This program represents an important first step toward the preparation of an NI 43-101 technical report, aimed at evaluating and advancing the potential of Mt. Wheeler in Nevada—a state consistently ranked among the world’s premier mining jurisdictions by the Fraser Institute.”

The reconnaissance program is anticipated to involve a short-duration field assessment carried out by a small, specialized team using appropriate equipment. The planned work will focus on addressing key geological questions, including host rock characteristics, structural controls, and mineralizing processes relevant to tungsten systems. The results are expected to support the Company in refining its exploration strategy for this critical minerals–focused asset.

The Company also intends to continue its engagement with Amazona in the preparation of an NI 43-101 Technical Report and comprehensive technical overview of the Mt. Wheeler Tungsten Historical Mine. This effort is expected to incorporate a review of available historical data, regional and property-scale geological context, and findings from the planned field program, with a focus on assessing the project’s potential role within the North American critical minerals supply chain, particularly with respect to tungsten.

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Figure 2. Tungsten and its uses. Visit Vaultstrategic.com

In addition, the Company is evaluating potential future submissions to relevant U.S. federal and state agencies in connection with programs supporting critical minerals development. These initiatives may include studies related to historical mine infrastructure, current site conditions, and the potential rehabilitation of the Mt. Wheeler Tungsten Historical Mine, subject to further technical evaluation, regulatory approvals, and funding considerations.

About Mount Wheeler Historical Tungsten Mine – Nevada, USA

The main period of activity began with the discovery of tungsten in 1950. Between 1952 and 1955, Mt. Wheeler Mines, Inc., under a Defence Minerals Exploration Administration (“DMEA”) contract. Between 1952 and 1954, 1,800 tons of rock averaging 1.3% WO3 was extracted and milled at Minerva, Nevada, with 75% DMEA sponsorship 2 . The average grade of all rock mined from the Pole Adit zone is about 0.5% WO3 as shown by the production figures. 3

A  feasibility study titled “Feasibility Study Mt. Wheeler Mine Beryllium project” was commissioned in 1972 by W.S. Moore Co. which states that “Milling was successfully piloted by the Colorado School of Mines” 4  “From 1959 to 1962, largely through the efforts of the Anaconda Company, an additional 4,475 feet of laterals and sub drifts were driven. Approximately 1,000 samples were taken.” 5 An indicated Tungsten-Beryllium resource was prepared.

The access roads to the mine are all blacktopped except for the last five-mile stretch which is gravel.

Historical Information and Exploration Context

The Wheeler Tungsten Historical Mine Project been the subject of extensive historical exploration, development work, and, in several cases, past commercial production or advanced-stage evaluations with the intent to commence mining. The historical exploration results, sampling, drilling, resource estimates, feasibility studies, and other technical information referenced herein were completed prior to the adoption of National Instrument 43-101 – Standards of Disclosure for Mineral Projects (“NI 43-101”) and do not comply with current NI 43-101 requirements. As a result, such historical information and any historical resource estimates should not be relied upon as current mineral resources or reserves.

In particular, the Mount Wheeler Tungsten-Beryllium Project is supported by historical feasibility-level study and substantial historical underground exploration; however, these studies were completed under historical standards and assumptions and are considered non-compliant under NI 43-101. All projects within the portfolio have a documented history of either mining, advanced development, or demonstrated intent to advance toward production, which provides valuable geological context and technical insight.

The Company has been provided with a compilation of historical technical data, including non-NI 43-101 compliant resource estimates, drilling records, sampling results, mine plans, metallurgical representations, and feasibility-level evaluations. While this historical information is non-compliant, it is considered highly relevant for exploration targeting, geological interpretation, and the design of modern exploration and evaluation programs.

Management believes that the existence of extensive historical work, past production, and prior feasibility-level evaluations creates a compelling foundation for modern exploration, particularly when reassessed using contemporary geological models, exploration technologies, metallurgical processes, and prevailing commodity prices. However, readers are cautioned that historical results, resources, or economic conclusions cannot be verified or confirmed at this time.

In order to define current mineral resources, assess metallurgy, and evaluate economic viability, the Company will be required to complete confirmation drilling, modern metallurgical studies, updated technical evaluations, and NI 43-101 compliant mineral resource estimates and feasibility or economic studies. There is no assurance that historical results will be confirmed or that any project will advance to economic viability.

Loan agreement

Vault has entered into loan agreements with two arms length lenders dated April 1 st , 2026, totalling CAD $200,000 to be used for general working capital. The loans shall be subject to a loan fee of 10 per cent.

Qualified Person

Mr. William Feyerabend, CPG, an independent Consulting Geologist and a Qualified Person as defined under National Instrument 43-101, has reviewed and approved the disclosure in this news release for consistency with NI 43-101 reporting requirements.

On behalf of the Board:

Vault Strategic Mining Corp.

" Quinn Field-Dyte "

Chief Executive Officer & Director

Tel: 604.880.2189 | 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 Vault, and the Company’s exploration Projects, which may include, but is not limited to, statements with respect to the completion of the acquisition of the exploration Projects, 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 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 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 VAULT 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 VAULT undertakes no obligation to publicly update or revise any forward-looking statement, whether as a result of new information, future events, or otherwise.

1 mla_56-83.pdf (Page 29)

2  Mount Wheeler Mine, Mount Washington, Mount Washington Mining District (Lincoln Mining District), Snake Range, White Pine County, Nevada, USA

3  Mount Wheeler Mine, Mount Washington, Mount Washington Mining District (Lincoln Mining District), Snake  Range, White Pine County, Nevada, USA  (Page 7)

4  download.php (Page 5)

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