Invinity Energy Systems Plc

Share Issue/Capital Change • Jan 2, 2026

National Storage Mechanism | Additional information

RNS Number : 4005N

Invinity Energy Systems PLC

02 January 2026

2 January 2026

Invinity Energy Systems plc

("Invinity" or the "Company")

Blocklisting Interim Review

Invinity Energy Systems plc (AIM: IES), a leading global manufacturer of utility-grade energy storage, provides the following update in accordance with Schedule Six of the AIM Rules for Companies regarding its existing blocklisting arrangements.

Name of company	Invinity Energy Systems plc
Name of scheme	Warrant exercise & Employee share option listing
Period of return (from / to)	02/07/2025 to 01/01/2026
Number and Class of Securities not issued at the start of the period under the scheme	1,360,820 Ordinary Shares of £0.01 each ("Ordinary Shares")
Plus: the amount for which a blocklisting application has been made since the last date of return	Nil
Less: Number of securities issued under the scheme during the period	0 Ordinary Shares
Equals: Balance under the scheme of securities not yet issued at the end of the period	1,360,820 Ordinary Shares
Number and class of securities originally admitted and the date of admission	1,500,000 Ordinary Shares admitted on 26 September 2022

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
Canaccord Genuity (Nominated Adviser and Joint Broker)	+44 (0)20 7523 8000
Henry Fitzgerald-O'Connor / Harry Pardoe / Charlie Hammond
VSA Capital (Joint Broker)	+44 (0)20 3005 5000
Andrew Monk / Andrew Raca

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 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 1 to hundreds 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.

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].

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