Invinity Energy Systems Plc

Share Issue/Capital Change • Mar 21, 2025

National Storage Mechanism | Additional information

RNS Number : 6805B

Invinity Energy Systems PLC

21 March 2025

21 March 2025

Invinity Energy Systems plc

("Invinity" or the "Company")

Electronic Shareholder Communications

Invinity Energy Systems plc (AIM: IES) (AQSE: IES) (OTCQX: IESVF), a leading global manufacturer of utility-grade energy storage , has posted a letter to shareholders requesting their consent to receive future shareholder communications via electronic means. A copy of the letter can be viewed electronically via this link .

Electronic communications offer shareholders a number of advantages including easier and quicker access to information and important documentation in digital format via the Company's Investor Portal . Additionally, by communicating electronically with shareholders, the Company can continue to minimise its environmental impact as well significantly reduce annual print and distribution costs.

Shareholders are therefore asked to register their consent to receive electronic communications by following the instructions set out in the letter or follow this link to complete the process online. Please note that you will need your Shareholder Reference Number (SRN) in order to register.

Stay up to date with news from Invinity. Join the distribution list for the Company's monthly investor newsletter here .

Enquiries :

Invinity Energy Systems plc	+44 (0)20 4551 0361
Jonathan Marren, Chief Executive Officer Joe Worthington, Senior Director, Corporate Affairs

Notes to Editors

Invinity Energy Systems plc (AIM: IES) (AQSE: 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 25 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 75 MWh of systems already deployed or contracted for delivery across 82 sites in 15 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 AQSE 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] .

About Reach announcements

This is a Reach announcement. Reach is an investor communication service aimed at assisting listed and unlisted (including AIM quoted) companies to distribute media only / non-regulatory news releases into the public domain. Information required to be notified under the AIM Rules for Companies, Market Abuse Regulation or other regulation would be disseminated as an RNS regulatory announcement and not on Reach.

This information is provided by Reach, the non-regulatory press release distribution service of RNS, part of the London Stock Exchange. Terms and conditions relating to the use and distribution of this information may apply. For further information, please contact [email protected] 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

NRAGCGDXXXDDGUB