23 November 2022

CAP-XX Limited

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

R&D Tax Rebate

CAP-XX Limited, a world leader in the design and manufacture of supercapacitors and energy management systems, is pleased to announce that following an application by the Company, the Australian Tax Office has advised that it has approved the Company's R&D tax rebate, amounting to A$2.05 million (November 2021: A$3.23 million) and these funds have been received by the Company.

For further information contact:

CAP-XX Limited

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

Allenby Capital (Nominated Adviser and Joint Broker)

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

Tony Quirke (Sales and Corporate Broking)

Cenkos Securities plc (Joint Broker)

Neil McDonald / Pete Lynch                                                             +44 (0) 13 1220 6939

Kreab (Financial PR)

Robert Speed                                                                                   +44 (0) 20 7074 1800

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

About CAP-XX

CAP-XX (LSE:CPX) is a world leader in the design and manufacture of ultra-thin prismatic and compact cylindrical supercapacitors. Its prismatic supercapacitors are manufactured in Australia and Malaysia and its cylindrical supercapacitors are manufactured in China. The company's strong intellectual property (IP) portfolio includes 11 patent families. CAP-XX's ultra-thin prismatic supercapacitors are ideal for space-constrained electronics applications where small energy storage device size and thickness are important. The unique feature of CAP-XX supercapacitors is their very high-power density and high-energy storage capacity in space-efficient thin prismatic and compact cylindrical packages. For more information, visit https://www.cap-xx.com/ or email sales@cap-xx.com.