Vault Strategic Mining Corp. Joins Canadian Association of Defence and Security Industries to Advance Critical Minerals Portfolio

Vancouver, British Columbia — June 11, 2026 — Leads & Copy — Vault Strategic Mining Corp. (TSXV: KNOX) (OTC: KNXFF) (FSE: M850) (WKN: A41WE4), referred to as "Vault" or the "Company," has announced its membership in the Canadian Association of Defence and Security Industries (CADSI). CADSI is the national voice for Canada's defence, security, and cyber sectors, fostering collaboration among industry, government, and military stakeholders. This addition complements Vault's existing membership with the National Defence Industrial Association (NDIA) in the USA, both aimed at advancing its portfolio of critical and strategic minerals.

Quinn Field-Dyte, Chief Executive Officer of Vault, stated that the Company's CADSI membership underscores its commitment to critical mineral opportunities aligned with Canada's long-term security, defence, and industrial priorities. He noted that as global demand for secure and reliable strategic mineral sources grows, CADSI provides a crucial platform for Vault to understand evolving defence supply chain requirements, contribute to national resilience, and position its North American critical minerals portfolio within Canada's broader security interests.

Membership in CADSI offers Vault access to defence industry forums, policy roundtables, technical workshops, and networking opportunities designed to promote collaboration within Canada's defence and security community. This participation will enable the Company to stay informed about emerging capability needs, procurement trends, regulatory considerations, and potential partnership opportunities related to critical minerals and advanced materials essential for national and allied security.

In a separate clarification, Vault addressed disclosure regarding its marketing services agreement with Capitaliz Marketing Inc. (Capitaliz). The Company confirmed that neither Capitaliz nor its principals currently hold any securities of Vault, and Capitaliz is considered an arm's length party. The initial budget of $50,000 payable to Capitaliz under the agreement is being paid in advance. The agreement has an initial term of one month, with the potential for additional allocations up to a total budget of $200,000, subject to the Company's approval. The agreement is also subject to acceptance by the TSX Venture Exchange.

Vault Strategic Mining Corp. is a North American resource company focused on acquiring and advancing strategic and critical mineral projects in prime mining jurisdictions. The Company prioritizes historical and underexplored assets with potential for value creation through modern exploration and disciplined development. Vault Strategic Mining Corp. is listed on the TSX Venture Exchange under the symbol KNOX, on OTC Markets as KNXFF, and on the Frankfurt Stock Exchange as M850.

Source: Vault Strategic Mining Corp.