Update re Tax Rebate

Dissemination of a Regulatory Announcement that contains inside information according to REGULATION (EU) No 596/2014 (MAR).

4 January 2021

CAP-XX Limited

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

Update re Tax Rebate

CAP-XX Limited, a world leader in the design and manufacture of thin, prismatic supercapacitors and energy management systems, is pleased to announce that following an application by the Company, the Australian Tax Office has advised the Company that it has approved its R&D tax rebate, amounting to A$3.12 million (November 2019: A$1.6 million) and that these funds will be remitted this week.

For further information contact:

CAP-XX Limited

Anthony Kongats (Chief Executive Officer)                                 +61 (0) 2 9428 0139

Kreab (Financial PR)

Robert Speed                                                                             +44 (0) 20 7074 1800

Allenby Capital (Nominated Adviser and Broker)

David Hart / Alex Brearley                                                          +44 (0) 20 3328 5656

More information is available at www.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, visit www.cap-xx.com