Mailing of Annual Report

29 June 2022

Invinity Energy Systems plc

("Invinity" or the "Company")

Mailing of Annual Report

Further to the announcement on Monday 27 June 2022, Invinity Energy Systems plc (AIM:IES), a leading global manufacturer of utility-grade energy storage , is pleased to announce that the 2021 Annual Report and Financial Statements will be posted to all registered shareholders today and have already been made available for viewing on the Company's website.

Enquiries :

Notes to Editors

Invinity Energy Systems plc (AIM:IES) 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 over 33 MWh of systems deployed to date across more than 50 sites in 15 countries, Invinity is active in all major global energy storage markets and has operations in the UK, Canada, USA, China and Australia. Invinity Energy Systems plc is listed on the London Stock Exchange.

To find out more, visit  invinity.com  or call Investor Relations on +44 (0)204 551 0361