Design Win with Global Semiconductor Manufacturer

REACH

5 August 2025

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

Strategic Design Win with Global Semiconductor Chip Manufacturer

Further Expands Presence in High-Growth Industrial Applications

CAP-XX Limited (LSE: CPX), a global leader in supercapacitor technology, is pleased to announce a design win with a leading multinational company. This achievement marks another key milestone in the Company's strategic growth, validating CAP-XX's innovation and deepening its penetration into high-growth sectors.

Integration into Semiconductor Manufacturing Systems

The design-in project, currently under commercial confidentiality, involves one of the world's largest semiconductor chip manufacturers, with the potential for broader adoption across additional applications.

CAP-XX's supercapacitor technology has been chosen for integration into high-temperature electric chambers used in semiconductor fabrication. These environments demand power solutions that are both highly durable and maintenance-efficient, requirements that traditional batteries struggle to meet due to heat sensitivity and limited lifespans.

CAP-XX's rugged, reliable, and cost-effective supercapacitors provide a superior alternative, enabling the OEM to improve system uptime, reduce maintenance cycles, and enhance overall return on investment.

Positioned for Broader Industrial Adoption

This design win demonstrates the scalability of CAP-XX's technology across demanding industrial environments and underscores its growing importance in critical global supply chains. It also reinforces rising demand for next-generation energy storage solutions that deliver performance and durability where legacy technologies fall short.

Lars Stegmann, CEO of CAP-XX, commented: "This is an exciting validation of our technology by a global industry leader. Our ability to deliver high-performance energy solutions in challenging conditions continues to set us apart. We look forward to expanding this relationship and driving further adoption of CAP-XX supercapacitors in high-value industrial applications."

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

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