Announcement PDF 30 September 2026 Vault Ventures PLC (“Vault” or the “Company”) Interim Results Vault Ventures PLC (AQSE: VULT) announces its unaudited interim results for the period ended 30 June 2026. Comments from Brian Stockbridge, Chairman of Vault: I present the Chairman’s Statement and interim results for the six months ended 30 June 2026. During the period, the Company continued to make progress as a technology-focused business, with an increasing emphasis on developing its post-quantum security strategy. After the period end, the Company announced the proposed appointment of a new CEO, Mark Evans-Smith, to lead this strategy along with a change of name to Sentry 7 PLC. The Company entered into a development agreement with Whitespace Global Limited in March 2026 in relation to a proprietary post-quantum secure communications platform, an early-stage initiative that forms part of our broader exploration of opportunities in quantum- resilient digital infrastructure. In addition, we strengthened the Company’s strategic capabilities through the appointment of experienced advisers to support commercial engagement across financial services and other institutional markets. During the period, the Board also undertook a review of the Group’s historical digital asset treasury activities. As announced in June 2026, substantial losses arose within Web 3 Virtual Vault DMCC, the Group’s Dubai-based subsidiary, resulting in a significant write-down of amounts advanced to that subsidiary. The Board continues to assess the residual position and potential recoveries while considering the appropriate route towards an orderly conclusion of its activities. These matters are operationally separate from the Group’s current technology development activities and do not change our strategic focus on building proprietary technology assets. The progress made during the first half of 2026 represents an important next stage in Vault’s development. Our priorities for the remainder of the year are to advance the development of our post-quantum secure communications platform, progress commercial opportunities across our technology portfolio and maintain disciplined capital allocation. We believe the increasing focus on quantum resilience across governments, financial institutions and regulated industries provides a significant long-term opportunity for the Company. On behalf of the Board, I would like to thank our shareholders for their continued support, as well as our employees, advisers and technology partners for their contribution during the period. We look forward to updating the market as we continue to deliver on our strategic objectives. Brian Stockbridge, Chairman Market Abuse Regulation (MAR) Disclosure Certain information contained in this announcement would have been deemed inside information for the purposes of Article 7 of Regulation (EU) No 596/2014 until the release of this announcement. The Directors of the Company accept responsibility for the contents of this announcement. For further information please visit: https://vaultplc.com For further information, please contact: Brian Stockbridge 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 Vault Ventures PLC Group’s Unaudited Statement of Comprehensive Income for the six months ended 30 June 2026 6 months to 30 June 2026 (unaudited) 6 months to 30 June 2025 (unaudited) Note £’000 £’000 Total Turnover 93 - Cost of goods (34) - Administration expenses (983) (237) Loss on ordinary activities before taxation (924) (237) Tax on loss on ordinary activities - - Loss on ordinary activities after taxation (924) (237) Total comprehensive income for the period (924) (237) Loss per ordinary share (pence) 6 (0.254p) (0.005p) Parent’s Unaudited Statement of Comprehensive Income for the six months ended 30 June 2026 6 months to 30 June 2026 (unaudited) 6 months to 30 June 2025 (unaudited) Note £’000 £’000 Total Turnover - - Administration expenses (735) (237) Loss on ordinary activities before taxation (735) (237) Tax on loss on ordinary activities - - Loss on ordinary activities after taxation (735) (237) Total comprehensive income for the period (735) (237) Loss per ordinary share (pence) 6 (0.202p) (0.005p) Group’s Unaudited Statement of financial position As at 30 June 2026 30 June 2026 (unaudited) 31 December 2025 (audited) Note £’000 £’000 Non-current Assets Intangible Assets 5 - - Goodwill 1,000 1,000 Investments 8 50 - Office Equipment 7 - Total Non-current Assets 1,057 1,000 Current Assets Debtors and prepayments 23 82 Unpaid share capital - 100 Cash at Bank and in hand 573 766 Investments 195 42 Total Current Assets 791 990 Creditors: amounts falling due within one year (98) (123) Broker margin loan (318) - Net current assets 375 867 Total assets less current liabilities 1,432 1,867 Net assets 1,432 1,867 Capital and reserves Called up share capital 7 4,488 4,389 Share Premium 3,041 2,966 Profit and loss account (6,489) (5,566) Share Issue Costs (1,913) (1,913) Share-based Payments Reserves 4 2,305 1,990 Equity shareholder funds 1,432 1,867 Parent’s Unaudited Statement of financial position As at 30 June 2026 30 June 2026 (unaudited) 31 December 2025 (audited) Note £’000 £’000 Non-current Assets Intangible Assets 5 - - Investments 8 1,386 1,335 Office Equipment 4 - Total Non-current Assets 1,390 1,335 Current Assets Debtors and prepayments 28 50 Unpaid share capital - 100 Cash at Bank and in hand 185 419 Internal Loan 155 104 Total Current Assets 368 673 Creditors: amounts falling due within one year (111) (116) Net current assets 257 557 Total assets less current liabilities 1,647 1,892 Net assets 1,647 1,892 Capital and reserves Called up share capital 7 4,488 4,387 Share Premium 3,041 2,967 Profit and loss account (6,274) (5,539) Share Issue Costs (1,913) (1,913) Share-based Payments Reserves 4 2,305 1,990 Equity shareholder funds 1,647 1,892 Group’s Unaudited Statement of Changes in Equity Share Capital Share Premium Share based payment reserve Share Issue Costs Retained Earnings Total Equity £’000 £’000 £’000 £’000 £’000 £’000 At 31 December 2024 1,114 802 - - (1,687) 230 (Loss) for the period - - - - (237) (237) Total Comprehensive Income - - - - (237) (237) Shares issued 727 581 - - - 1,308 Issue of warrants - - 2 - - 2 Share issue costs - - - (156) - - Total contributions by and distributions to owners of the Group 727 581 2 (156) (237) 917 At 30 June 2025 1,841 1,384 2 (156) (1,924) 1,146 Share Capital Share Premium Share based payment reserve Share Issue Costs Retained Earnings Total Equity £’000 £’000 £’000 £’000 £’000 £’000 At 31 December 2025 4,389 2,966 1,990 (1,913) (5,566) 1,867 (Loss) for the period - - - - (924) (924) Total Comprehensive Income - - - - (924) (924) Shares issued 100 75 - - - 175 Warrants vested - - 389 - - 389 Warrants exercised - - (74) - - (74) Total contributions by and distributions to owners of the Group 100 75 315 - (924) (434) At 30 June 2026 4,488 3,041 2,305 (1,913) (6,489) 1,432 Parent Unaudited Statement of Changes in Equity Share Capital Share Premium Share based payment reserve Share Issue Costs Retained Earnings Total Equity £’000 £’000 £’000 £’000 £’000 £’000 At 31 December 2024 1,114 802 - - (1,687) 230 (Loss) for the period - - - - (237) (237) Total Comprehensive Income - - - - (237) (237) Shares issued 727 581 - - - 1,308 Issue of warrants - - 2 - - 2 Share issue costs - - - (156) - - Total contributions by and distributions to owners of the Company 727 581 2 (156) (237) 917 At 30 June 2025 1,841 1,384 2 (156) (1,924) 1,146 Share Capital Share Premium Share based payment reserve Share Issue Costs Retained Earnings Total Equity £’000 £’000 £’000 £’000 £’000 £’000 At 31 December 2025 4,387 2,966 1,990 (1,913) (5,539) 1,892 (Loss) for the period - - - - (735) (735) Total Comprehensive Income - - - - (735) (735) Shares issued 100 75 - - - 175 Warrants vested - - 389 - - 389 Warrants exercised - - (74) - - (74) Total contributions by and distributions to owners of the Company 100 75 315 - (735) (245) At 30 June 2026 4,488 3,041 2,305 (1,913) (6,274) 1,647 Group’s Unaudited Statement of Cash flow 6 months to 30 June 2026 (unaudited) 6 months to 30 June 2025 (unaudited) Note £'000 £'000 Operating activities Loss after Tax (925) (237) Change in Other Current Assets 113 80 Change in Other Current Liabilities (including broker margin loan) 318 (7) Change in Accounts Payable 21 58 Warrants vested/exercised during the period 389 - Equity Reduction for Acquisition (4) - Net cash (outflow)/inflow from operating activities (88) (105) Investing activities Change in investments (207) (954) Net cash outflow from investing activities (207) (954) Finance activities Change in Other Equity 102 1,283 Share Issue Costs - (131) Net cash inflow from financing activities 102 1,152 Net change in cash and cash equivalents (193) 94 Cash and cash equivalents at beginning of period 766 190 Cash and cash equivalents at end of period 573 284 Notes to the interim results 1. General Information The registered office of Vault Ventures PLC (the “Company”) is 21 Arlington Street, London, SW1A 1RN, United Kingdom. During the year, the Company and its subsidiaries (together, the "Group") continued to refine its strategic focus towards high-growth technology sectors such as post-quantum security solutions, secure communications platforms and related technology assets. 2. Basis of Preparation The interim financial statements have been prepared in accordance with the AQSE Listing Rules. As permitted, the Company has chosen not to adopt IAS 34 “Interim Financial Statements” in preparing this interim financial information. The interim financial statements should be read in conjunction with the annual financial statements for the year ended 31 December 2025. The interim financial statements have been prepared in accordance with UK adopted International Accounting Standards. The interim financial information set out above does not constitute statutory accounts within the meaning of the Companies Act 2006. It has been prepared on a going concern basis in accordance with the recognition and measurement criteria of UK adopted International Accounting Standards. Statutory financial statements for the period ended 31 December 2025 were approved by the Board of Directors on 30 June 2026. The report of the auditors on those financial statements was qualified due to the unavailability of sufficient appropriate audit evidence in respect of Web3 Virtual Vault DMCC ("W3VV"), a 70%-owned subsidiary of the Company. The interim financial statements are unaudited and have not been reviewed by the Company’s auditor. Going concern The interim financial statements have been prepared on a going concern basis. As disclosed in the Group's FY2025 Annual Report, the Directors identified a material uncertainty regarding going concern, reflecting the Group's dependence on existing cash resources and on access to external finance. This dependency remains at 30 June 2026: cash was £573,000 (31 December 2025: £766,000). The Board continues to preserve cash resources through deferral or accrual of Directors' remuneration, the reduction or postponement of discretionary expenditure, the rescheduling of certain development activities and the deferral of non- essential capital commitments. The Directors also have a reasonable expectation that the Group and Company will continue to be able to raise finance as required and to continue in operational existence for the foreseeable future. Thus, they continue to adopt the going concern basis of accounting in preparing the Financial Statements. Risks and uncertainties The Board continuously assesses and monitors the key risks of the business. The key risks that could affect the Company’s medium term performance and the factors that mitigate those risks have not substantially changed from those set out in the Company’s 2025 Annual Report and Financial Statements, a copy of which is available on the Company’s website: https://vaultplc.com. The key financial risks are market risk, exchange rate risk, liquidity risk and credit risk. Critical accounting estimates The preparation of interim financial statements requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities at the end of the reporting period. Significant items subject to such estimates are set out in Note 3 of the Company’s 2025 Annual Report and Financial Statements. The nature and amounts of such estimates have not changed significantly during the interim period. Share-based Payments The Company measures the cost of equity-settled transactions by reference to the fair value of the equity instruments at the date at which they are granted. The fair value is determined by using the Black-Scholes model taking into account the terms and conditions upon which the instruments were granted. The accounting estimates and assumptions relating to equity- settled share-based payments would have no impact on the carrying amounts of assets and liabilities within the next annual reporting period but may impact profit or loss and equity. There have been no dilutive instruments issued in the period and the value remains equal to that in the annual financial statements as at the last reporting period. Cryptocurrencies The Group has determined that its cryptocurrency holdings meet the definition of intangible assets under IAS 38 Intangible Assets, as they are identifiable non-monetary assets without physical substance and are not financial instruments. Management has assessed that the cryptocurrencies are not held for sale in the ordinary course of business and therefore are not classified as inventory under IAS 2. The cryptocurrencies are initially recognised at cost and subsequently measured at cost less any accumulated impairment losses, as there is no reliably observable active market that would justify the use of a revaluation model under IAS 38. The determination of whether an active market exists for a particular cryptocurrency involves judgement, including an assessment of trading volume, bid/ask spread, and market participant activity. Impairment testing is performed at each reporting date, and this involves estimation of the recoverable amount, typically determined with reference to observable market prices. Impairment losses cannot be reversed under IAS 38, even if the fair value of the cryptocurrency subsequently recovers. Management continues to monitor industry guidance and regulatory developments that may impact the accounting treatment of cryptocurrencies. 3. Accounting Policies The same accounting policies, presentation and methods of computation are followed in the interim consolidated financial information as were applied in the Company's latest annual audited financial statements. 4. Share based payments reserves The following warrants over ordinary shares have been granted by the Company and are outstanding as at 30 June 2026: Grant date Number of warrants Share price Exercise Price Expected volatility Expected life years Risk free rate Expected dividends 10-Dec-24 27,100,000 1.9p 2p 89.79% 3 4.75% 0.00% 10-Dec-24 2,900,000 1.9p 5p 89.79% 3 4.75% 0.00% 19-Jun-25 2,666,666 6p 2.3p 96.53% 3 4.1% 0.00% 19-Jun-25 12,962,963 6p £nil n/a 5 n/a 0.00% 16-Sep-25 1,500,000 0.95p 2p 96.37% 3 3.97% 0.00% 27-Aug-25 8,000,001 1.55p 2.5p 96.49% 5 4.22% 0.00% 27-Aug-25 3,999,999 1.55p 5p 96.49% 5 4.22% 0.00% 27-Aug-25 400,000 1.55p 2p 96.49% 3 4.22% 0.00% 27-Aug-25 20,000,000 1.55p 1.5p 96.49% 3 4.22% 0.00% 24-Dec-25 102,020,000 1.15p 1p 96.54% 3 4.24% 0.00% Total 181,549,629 Reconciliation of Warrants Valuation £‘000 No. of warrants Balance as at 31 December 2025 1,990 185,068,148 Warrants vested during the period 389 6,481,481 Warrants lapsed/expired during the period - - Warrants exercised during the period (74) (10,000,000) Balance as at 30 June 2026 £2,305 181,549,629 5. Intangible Assets Reconciliation of Intangible Asset as at 30 June 2026 BTC SOL ETH Other USDT Total £'000 £'000 £'000 £'000 £'000 £'000 At 30 June 2025 161 - 793 - - 954 Additions 170 254 1,306 - 209 1,993 Disposals — proceeds on disposal (330) (341) (152) (30) - (853) Realised (loss)/gain on disposal (1) 88 14 30 - 131 Fair value loss - - (68) - - (68) Impairment - - (1,893) - (209) (2,102) At 31 December 2025 - - - - - - Disposals — proceeds on disposal - - - - - - Realised (loss)/gain on disposal - - - - - - Fair value loss - - - - - - Impairment - - - - - - At 30 June 2026 - - - - - - The Group’s cryptocurrency assets were fully impaired as at 31 December 2025 and remained at a carrying value of £nil as at 30 June 2026. 6. Earnings per Share The calculation of loss per share is based on the losses attributable to the Parent Company and the Group of £734,505 and £924,101, respectively, for the six months ended 30 June 2026, and on the weighted average number of 363,111,930 ordinary shares in issue during the period. No diluted earnings per share is presented for the six months ended 30 June 2026 or six months ended 30 June 2025 as the effect on the exercise of share options would be to decrease the loss per share. 7. Called up share capital As at 30 June 2026 £’000 Balance as at 31 December 2025 4,387 New shares issued for Warrants exercised during the period 100 Balance as at 30 June 2026 4,488 8. Investment Parent’s Account As at 30 June 2026 £’000 As at 31 December 2025 £’000 Investment in Foundrs Holdings (UK) Limited 50 - Investment in Subsidiaries – Kingbridge Capital Ltd 336 335 Investment in Subsidiaries – System7 Ventures Ltd 1,000 1,000 Total 1,386 1,335 Group’s Account As at 30 June 2026 £’000 As at 31 December 2025 £’000 Investment in Foundrs Holdings (UK) Limited 50 - Total 50 - 9. Post Balance Sheet Events Change of name and directorate change On 21 September 2026, the Company announced a proposal to change its name to Sentry 7 PLC, reflecting the Group’s increasing focus on developing technology that acts as a digital sentry for regulated financial institutions. In connection with this strategic shift, the Board proposed the appointment of Mark Evans-Smith as Chief Executive Officer and Executive Director, subject to satisfactory completion of due diligence. The Company will apply for the change of name to be reflected on the Aquis Stock Exchange Growth Market following registration at Companies House. Post-quantum secure communications platform update On 24 September 2026, the Company provided an update on the strategic progress of its post-quantum secure communications platform, being developed with engineering partner Whitespace to help financial institutions verify electronic communications in line with post- quantum cryptographic standards. 10. Approval of interim financial statements The interim financial statements were approved by the Board of Directors on 30 September 2026.