Tan Delta Systems to present at MelloLondon

This is a Reach (i.e. non-regulatory) announcement and the information contained is not considered to be material or to have a significant impact on management's expectations of the Company's performance.

12 November 2026

Tan Delta Systems plc

("Tan Delta", or the "Company")

Tan Delta Systems to present at MelloLondon

Tan Delta (AIM:TAND), a leading provider of intelligent real time sensor based monitoring and maintenance systems for commercial and industrial equipment, is pleased to announce its participation in the MelloLondon Investor Conference on Tuesday, 18 November 2026.

Chris Greenwood, Chief Executive Officer of TAND, will be delivering two presentations at 11:55am and 4:10pm GMT, providing an overview of the company, their technology, current activities and strategic outlook.

TAND will also be exhibiting and demonstrating their products at the conference on the 18th, providing existing and prospective investors with an opportunity to meet senior representatives of the Company and learn more about its innovative technologies, solutions and growth strategy.

The MelloLondon Investor event takes place at the Clayton Hotel & Conference Centre, Chiswick, London W4 5RY on the 17th and 18th of November 2026. For further information and tickets for the MelloLondon conference, please visit the event website at https://www.melloevents.com/mellolondon2026.

About Tan Delta

Tan Delta is a UK-based technology leader in real-time oil condition monitoring. Our patented sensor technology and predictive analytics help businesses across sectors - including power generation, marine, manufacturing, and transportation - reduce downtime, prevent equipment failure, and optimise maintenance. With thousands of systems in operation globally, Tan Delta's solutions are trusted by OEMs and end-users alike to improve performance and lower environmental impact.