Mr. Quinn Field-Dyte reports

VAULT ENGAGES AMAZONA FOR MAIDEN EXPLORATION PROGRAM AT MT. WHEELER TUNGSTEN PROJECT, NEVADA

Vault Strategic Mining Corp. has engaged veteran geologist William (Bill) Feyerabend, CPG, and Amazona Enterprises for a planned field exploration and reconnaissance program at the company's Mount Wheeler historical tungsten mine, a historical tungsten project in Nevada, United States.

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 Mount Wheeler tungsten historical mine without delay. This program represents an important first step toward the preparation of an NI [National Instrument] 43-101 technical report, aimed at evaluating and advancing the potential of Mount 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 Mount 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.

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 Mount Wheeler tungsten historical mine, subject to further technical evaluation, regulatory approvals and financing considerations.

About Mount Wheeler historical tungsten mine -- Nevada, United States

The main period of activity began with the discovery of tungsten in 1950. Between 1952 and 1955, Mount Wheeler Mines Inc. was under a Defence Minerals Exploration Administration (DMEA) contract. Between 1952 and 1954, 1,800 tons of rock averaging 1.3 per cent WO3 (tungsten trioxide) was extracted and milled at Minerva, Nev., with 75 per cent DMEA sponsorship. The average grade of all rock mined from the Pole Adit zone is about 0.5 per cent WO3.

A feasibility study titled "Feasibility Study Mount Wheeler Mine Beryllium project" was commissioned in 1972 by W.S. Moore Co., which states: "Milling was successfully piloted by the Colorado School of Mines. From 1959 to 1962, largely through the efforts of the Anaconda Company, an additional 4,475 feet of laterals and subdrifts were driven. Approximately 1,000 samples were taken." 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 has 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, 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 a 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 agreements

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

Qualified person

William Feyerabend, CPG, an independent consulting geologist and a qualified person as defined under NI 43-101, has reviewed and approved the disclosure in this news release for consistency with NI 43-101 reporting requirements.

We seek Safe Harbor.