Announcement PDF RNS Number : 4451A Vault Ventures Plc 23 September 2025 This announcement contains information which, prior to its disclosure, was inside information as stipulated under Regulation 11 of the Market Abuse (Amendment) (EU Exit) Regulations 2019/310 (as amended). Upon the publication of this announcement via a Regulatory Information Service, this inside information is now considered to be in the public domain. PLEASE SEE THE IMPORTANT NOTICE AT THE END OF THIS ANNOUNCEMENT. 23/09/2025 Vault Ventures Plc ("Vault" or the "Company") Treasury Update Vault Ventures Plc (AQSE: VULT), a London based technology developer focused on blockchain and fintech innovation, announces that the value of its treasury, operated for the sole purpose of supporting the Company's core operations of developing AI and technology products to generate revenue, has increased by over £852,000 ($1,151,000) representing an increase of over 41%. This disclosure is being made under paragraph 2.1.4 of the Aquis framework for issuers pursuing cryptocurrency strategies. Cryptocurrency Treasury Holdings as at 22/09/2025 are set out below: Cryptocurrency Treasury Asset ETH Units Current Value* 818.85 Purchase Cost £1,806,271 SOL % Change £2,551,962 Unrealised Gain £745,691 2,201.10 £253,457 £360,386 £106,929 42.19% 41.28% *Calculated using £3116.52/ETH and £163.73/SOL About Vault Vault Ventures PLC is a UK-based technology development company focused on building and commercialising proprietary products in the blockchain, AI, and fintech sectors. Product development is undertaken through its operating subsidiary, System7, which is responsible for the design and launch of new technologies with the potential to generate revenues. To support its operating strategy, Vault also maintains a digital asset treasury with core holdings in Ethereum and Solana. Engage with the Vault management team directly by asking questions, watching video summaries and seeing what other shareholders have to say. Navigate to our Interactive Investor hub here: Investor Hub For further information, please contact: Brian Stockbridge Non-executive Chairman We encourage all investors to share questions on this announcement via our investor hub Visit our Investor Hub Alfred Henry Corporate Finance Ltd AQSE Corporate Advisor Nick Michaels, Maya Klein Wassink +44 (0) 20 8064 4056 The Directors accept responsibility for this announcement. Subscribe to our news alert service: Investor Hub Important Notice: The Company operates a cryptocurrency treasury. The Company's treasury activities involve investment in financial instruments that may fluctuate in value and are subject to market, credit and liquidity risks. These investments are undertaken for corporate purposes and are not offered to the public. This announcement does not constitute investment advice or an offer or invitation to invest. Past performance is not a reliable indicator for future results. Capital is at risk and returns are not guaranteed. 1. Capital at risk Investments made as part of the treasury strategy may fluctuate in value. There is a risk that capital may be lost. 2. No guarantee of returns Returns generated through treasury activities are not guaranteed and may vary depending on market and economic conditions. 3. Liquidity risk Some treasury assets may be illiquid or subject to market constraints, which could affect the company's ability to access funds when needed. 4. Market and Interest Rate Exposure Changes in interest rates. Inflation or broader market conditions may adversely impact the value or performance of treasury investments. 5. Credit and counterparty risks The Company is exposed to the risk that counterparties may default on their obligations, potentially resulting in financial loss. 6. Regulatory and Taxation Uncertainty Future changes in regulation or tax treatment may affect the structure or outcomes of the treasury strategy. 7. Not a financial promotion This communication is provided for information purposes only and does not constitute an offer or invitation to invest. The treasury strategy is managed for corporate purposes and is not marketed to the public. This information is provided by RNS, the news service of the London Stock Exchange. RNS is approved by the Financial Conduct Authority to act as a Primary Information Provider in the United Kingdom. Terms and conditions relating to the use and distribution of this information may apply. For further information, please contact rns@lseg.com or visit www.rns.com. RNS may use your IP address to confirm compliance with the terms and conditions, to analyse how you engage with the information contained in this communication, and to share such analysis on an anonymised basis with others as part of our commercial services. For further information about how RNS and the London Stock Exchange use the personal data you provide us, please see our Privacy Policy. END NEXFIFVTAFIVFIE