Dissemination of a Regulatory Announcement that contains inside information for the purposes of Regulation 11 of the Market Abuse (Amendment) (EU Exit) Regulations 2019/310.

19 February 2024

CAP-XX Limited

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

Cessation of appeals process

Further to the Company's announcement on 29 January 2024, CAP-XX Limited, a world leader in the design and manufacture of supercapacitors and energy management systems, provides the following update.

Following the Delaware District Court judgment in favour of Maxwell Technologies Inc. in a patent infringement case asserted by CAP-XX, the Directors of CAP-XX have decided to take no further action with the appeal made to the Federal Circuit Court of Appeals. This will result in the dismissal of the appeal. The decision follows the conclusion of a case review by CAP-XX with its lawyers, which considered the legal fees to present the appeal and the probability of success.

For further information contact:

CAP-XX Limited

Pat Elliott (Chairman)                                                                             +61 (2) 9157 0000

Lars Stegmann (Chief Executive Officer)

Allenby Capital (Nominated Adviser and Joint Broker)

David Hart / Piers Shimwell (Corporate Finance)                                  +44 (0) 20 3328 5656

Tony Quirke / Stefano Aquilino (Sales and Corporate Broking)

Cavendish Securities plc (Joint Broker)

Neil McDonald / Pearl Kellie                                                                   +44 (0) 13 1220 6939

Kreab (Financial PR)

Robert Speed                                                                                      ​   +44 (0) 20 7074 1800

Notes to Editors:

CAP-XX (LSE: CPX) is a 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, visit www.cap-xx.com