16 February 2022

Invinity Energy Systems plc

("Invinity" or the "Company")

Proposed admission to trading of Invinity's existing Warrants and Ordinary Shares

on the Aquis Stock Exchange ("AQSE")

Invinity Energy Systems plc (AIM:IES), a leading global manufacturer of utility-grade energy storage, is pleased to announce that it intends to seek dual-admission of its existing Ordinary Shares to trading on the Apex segment of the AQSE Growth Market and to admit the existing Short-Term Warrants and Long-Term Warrants (together the "Warrants") issued in December's placing and open offer to trading on the Access segment of the AQSE Growth Market. The AQSE today released an Announcement of Application for Admission setting out the details of the proposed Admission.

The Company has received feedback that it would be valuable if the Warrants were admitted to trading on a recognised stock exchange so that investors in the Company can buy and sell the Warrants as well as the Company's Ordinary Shares and more readily identify the value of their Warrants.

Accordingly, the Company is proposing a dual-admission of its Ordinary Shares to the Apex segment of the AQSE Growth Market using the Aquis Stock Exchange's "Fast-Track" application process so that no admission document is required. Upon Admission, Invinity's Ordinary Shares will be traded on both the AIM market of the London Stock Exchange and the AQSE. Invinity will continue to be regulated by the AIM Rules.

Simultaneously, the Company proposes to admit the Warrants to trading on the Access segment of the AQSE Growth Market. As separate securities, the Warrants do not qualify for the Apex segment but admission to the Access segment will provide Warrantholders with a market and liquidity for the Warrants that they hold.

The Apex segment of the AQSE Growth Market is designed for established entrepreneurial companies with a compelling growth story. Invinity's Board believes that admitting the Company's Ordinary Shares to the Apex segment and the Warrants to the Access segment of the AQSE Growth market is a positive step for the Company, Shareholders and Warrantholders.

General Meetings of Warrantholders

The admission of the Warrants to trading on the AQSE Growth Market requires a change to the terms of the instruments constituting the Warrants and, as a result, Admission is conditional upon the separate approval of both holders of Short-Term Warrants and holders of Long-Term Warrants. The Company is today posting notices of General Meetings of Warrantholders to take place on 7 March 2022 at the offices of Osborne Clarke LLP at One London Wall, London EC2Y 5EB at which resolutions seeking approval of the Admission will be proposed. An electronic version of the notice will shortly be available to download from https://invinity.com/investors/resources/.

Conditionally upon the approval by Warrantholders, it is expected that the Ordinary Shares, the Short-Term Warrants and the Long-Term Warrants will be admitted to trading on the relevant segments of the AQSE Growth Market on 9 March 2022. A detailed expected timetable of events is set out later in this announcement.

Larry Zulch, Chief Executive Officer at Invinity said:

"We are delighted to be joining Aquis, supporting Invinity's transition from a company with promising technology to one providing commercial products into the large and growing stationary energy storage market. Admitting our Warrants to trading on Aquis is something of a first and we will continue to innovate in our products and our delivery of value to shareholders."

The terms used but not defined in this announcement have the meaning given to them in the announcement published by the Company on 18 November 2021, unless otherwise stated.

Expected timetable of events

Definitions

Enquiries:

Notes to Editors

Invinity Energy Systems plc (AIM:IES) manufactures 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 25 MWh of systems deployed to date across more than 40 sites in 15 countries, Invinity is active in all major global energy storage markets and has operations in the UK, Canada, USA, China, Australia and South Africa. 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