10 November 2025

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

Director / PDMR Shareholding

CAP-XX Limited (AIM: CPX), a world leader in supercapacitor technology and energy storage solutions, announces that, on 7 November 2025, Dr Graham Cooley, Non-Executive Chairman, bought 24,000,000 ordinary shares in the Company ("Ordinary Shares") at an average price of 0.265 pence per Ordinary Share.

Following the above purchase, Dr Graham Cooley now has a total beneficial interest in 603,003,400 Ordinary Shares, equivalent to approximately 10.41 per cent. of the Company's issued share capital.

The FCA notification in relation to the above and made in accordance with the requirements of the UK Market Abuse Regulation is appended further below.

For further information, please contact:

CAP-XX Limited

Dr Graham Cooley (Chairman)                                                                      +61 (2) 9157 0000

Lars Stegmann (Chief Executive Officer)

Allenby Capital (Nominated Adviser and Broker)

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

Jos Pinnington/Tony Quirke (Sales and Corporate Broking)

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

Notification and public disclosure of transactions by persons discharging managerial responsibilities and persons closely associated with them.