Invinity Energy Systems PlcLSE: IES

Blocklisting Interim Review & Total Voting Rights

· Investegate

1 July 2026

Invinity Energy Systems plc

("Invinity" or the "Company")

Blocklisting Interim Review & Total Voting Rights

Invinity Energy Systems plc (AIM: IES), a global leader in vanadium flow battery technology, 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)

02/01/2026 to 30/06/2026

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

621,218 Ordinary Shares

Equals: Balance under the scheme of securities not yet issued at the end of the period

739,602 Ordinary Shares

Number and class of securities originally admitted and the date of admission

1,500,000 Ordinary Shares admitted on 26 September 2022

The issued ordinary share capital of the Company now comprises 569,388,085 Ordinary Shares of £0.01 each with one vote per share. This figure can be used by shareholders as the denominator for the calculations by which to determine if they are required to notify their interest in, or a change to their interest in, the Company under the FCA's Disclosure and Transparency Rules.

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) is a world-leading manufacturer of vanadium flow batteries for energy storage. Built in our factories in the UK and Canada, the Company's proven, commercialised, longer duration energy storage technology has been deployed at scale and dispatched gigawatt-hours of electricity for customers across the world.

Invinity's safe, scalable and durable battery technology is a trusted and safer alternative to lithium-ion batteries. Endurium VFBs are engineered for heavy-duty, high throughput applications, they don't wear out, cannot catch fire and are designed to be operated for 30 years or more. Our products address the challenges of our global energy system, unlocking the power of renewable generation by delivering energy storage without limits.

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 ir@invinity.com.

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