3 May 2023

CAP-XX Limited

("CAP-XX" or the "Company")

Anthony Kongats stepping down as CEO of CAP-XX

CAP-XX announces that Mr Anthony Kongats has informed the Board of his decision to step down from full time employment and as a Director and CEO of the Company. The Company also announces that it is in advanced discussions with a proposed new CEO for CAP-XX, with this individual being based in Western Europe. It is anticipated that Mr Kongats' resignation will take effect on 12 May 2023.

The Company and Mr Kongats expect to enter into an appropriate consultancy arrangement to ensure that CAP-XX continues to benefit from his extensive knowledge of CAP-XX's technologies, applications and customers.

A further announcement in respect of the appointment of the proposed new CEO will be made in due course.

Mr Kongats founded CAP-XX in 1997 and listed the Company on the AIM market of the London Stock Exchange in 2006, since when it has developed to its position as a world leading manufacturer of supercapacitors, developing new technologies and energy storage solutions.

Mr Kongats went on to orchestrate CAP-XX's acquisition of the supercapacitor manufacturing lines of Murata, a former licensee, overseeing the successful relocation and commissioning of the facilities from Japan to Sydney, Australia.

It is with sadness that the Board has accepted Anthony's decision to step down as CEO and wishes to take this opportunity to thank Anthony for his vision, innovation and leadership.

Patrick Elliott, Non-Executive Chairman of CAP-XX Limited, said:

"On behalf of the entire Board, I'd like to thank Anthony for creating a market leading energy storage research and development company, that is addressing future energy targets and solutions. Under his stewardship, CAP-XX has become a world leading manufacturing business renowned for innovating and developing cutting edge technology for the energy storage."

Anthony Kongats said:

"After 23 years with CAP-XX, I feel the time is right to step back from running the Company. I am immensely proud of what we have achieved, and I am confident that CAP-XX will remain at the forefront of innovation, leading the world in supercapacitor development and future energy storage solutions for decades to come.

"Over my 32-year career I have made many great friends with colleagues, shareholders and throughout the industry, in Australia and abroad. I truly value these relationships and our collective and combined contribution to the furtherment of energy technology."

For further information contact:

CAP-XX Limited

Patrick Elliott (Non-Executive Chairman)

Anthony Kongats (CEO)

+61 (0) 2 9428 0139

Allenby Capital (Nominated Adviser and Joint Broker)

David Hart / Piers Shimwell (Corporate Finance)

Tony Quirke / Stefano Aquilino (Sales and Corporate Broking)

+44 (0) 20 3328 5656

Cenkos Securities plc (Joint Broker)

Neil McDonald / Pearl Kellie

+44 (0) 13 1220 6939

Kreab (Financial PR)

Robert Speed

+44 (0) 20 7074 1800

More information is available atwww.cap-xx.com

Notes to Editors:

CAP-XX (LSE: CPX) is a world leader in the design and manufacture of thin, flat supercapacitors and energy management systems used in portable and small-scale electronic devices, and to an increasing extent, in larger applications such as automotive and renewable energy. The unique feature of CAP-XX supercapacitors is their very high power density and high energy storage capacity in a space-efficient prismatic package.These attributes are essential in power-hungry consumer and industrial electronics, and deliver similar benefits in automotive and other transportation applications. For more information about CAP-XX, visitwww.cap-xx.com