Result of Meeting and Total Voting Rights

29 September 2025

Invinity Energy Systems plc

("Invinity" or the "Company")

Result of General Meeting

and

Total Voting Rights

Invinity Energy Systems plc (AIM: IES) (OTCQX: IESVF), a leading global manufacturer of utility-grade energy storage, announces that all resolutions were passed at the Company's General Meeting held today at 11.00 a.m. The result of the poll voting (including all proxies) is detailed below.

*Any proxy appointments, which gave discretion to the Chairman, have been included in the 'For' votes total.

Admission

Applications have been made to the London Stock Exchange for 128,205,128 Subscription Shares to be admitted to trading on AIM by 8.00 a.m. on 30 September 2025.

Upon Admission, the Enlarged Share Capital is expected to be up to 568,766,867 Ordinary Shares of £0.01 each with one vote per share. The above figure may be used by shareholders in the Company as the denominator for the calculations by which they will determine if they are required to notify their interest in, or a change to their interest in, the share capital of the Company under the FCA's Disclosure Guidance and Transparency Rules.

The gross proceeds of the Subscription, totalling £25 million, have now been received by the Company and following Admission, will be available to the Company.

Significant Shareholders

Following Admission, the Subscribers will have the following interests in the Company

*Jonathan Keeling, the majority owner of Next Gen Mobility Limited, and persons closely associated with him also hold 88,327 Ordinary Shares representing 0.02% of the Issued Share Capital following Admission

The minority owner of Next Gen Mobility Limited is Artha Global Opportunities Fund which currently has a direct holding in the Company of 22,428,676 Ordinary Shares representing 3.9% of the Issued Shares Capital following Admission

Other than where defined, capitalised terms in this announcement have the meanings given to them in the Announcement released by the Company at 8.06 a.m. (London time) on 9 September 2025.

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Notes to Editors

Invinity Energy Systems plc (AIM: IES) (OTCQX: IESVF) manufactures vanadium flow batteries for large-scale, high-throughput energy storage requirements of business, industry and electrical networks.

Invinity's factory-built flow batteries run continually with no degradation for over 30 years, making them suitable for the most demanding applications in renewable energy production. Energy storage systems based on Invinity's batteries are safe, reliable, and economical, and range in size from less than 250 kilowatt-hours to tens of megawatt-hours.

Invinity was created in April 2020 through the merger of two flow battery industry leaders: redT energy plc and Avalon Battery Corporation. With more than 190 MWh of systems deployed, contracted for delivery or awarded for projects across more than 90 sites in 17 countries, Invinity is active in all major global energy storage markets and has operations in the UK, Canada, USA and China. Invinity Energy Systems plc is quoted in the UK on AIM and trades in the USA on OTCQX.

To find out more, visit invinity.com, sign up to our monthly Investor Newsletter here or contact Investor Relations on via +44 (0)20 4551 0361 or [email protected].