15 October 2025

Newmark Security plc

("Newmark", the "Company" or the "Group")

Update re. Response to Shareholder Letter

Newmark Security plc (AIM: NWT), a leading provider of electronic and physical security systems, provides an update to its announcement on 8 October 2025, in relation to the open letter issued by Thalassa Holdings Ltd. ("Thalassa"), a 21.3% shareholder in the Company.

Since issuing its response, the Company has had a positive dialogue with Thalassa and has listened to its feedback. The Company and Thalassa are aligned in the view that the Board can be strengthened as well as making other changes to help deliver future shareholder value.

As part of its efforts to strengthen the Board composition, the Company confirms that it will appoint two new independent non-executive directors, with the search process already underway. Once appointed, the new independent directors will also join the remuneration committee, which, aligned with shareholder feedback, will only consist of independent directors thereafter. Consequently, Maurice Dwek will step off the remuneration committee once the appointments are made.

In conjunction with the Board changes, Michel Rapoport, Non-Executive Director, will step down from the Board on the appointment of the new independent directors. Michel has been on the Board of Newmark since 2001 and has provided invaluable counsel through numerous economic cycles and major changes in the business.

Maurice Dwek, Chairman of Newmark, commented: "We have always sought to have open and constructive dialogue with our shareholders. We have taken onboard the feedback we have recently received from Thalassa and are now moving forward in a positive manner. We look forward to providing updates on the new Board appointments in the near future.

"Separately, I want to sincerely thank Michel Rapoport for his commitment to the Company over the past 24 years. Michel has provided invaluable advice and support to the Board during his time as a non-executive director, and we are hugely grateful for this. Importantly, we will continue to benefit from having Michel as a supportive shareholder."

ENDS

About Newmark Security plc

Newmark is a leading provider of electronic, software and physical security systems that helps organisations protect human capital and provide safe spaces seamlessly and securely.

From our locations in the UK and US, we operate through subsidiary businesses positioned in specialist, high-growth markets.

We foster an open and inclusive work environment amongst our c.100 employees, serving hundreds of blue-chip customers.

Our product portfolio consists of Human Capital Management and Access Control Systems providing both hardware and software and Physical security installations to various sectors.

Newmark Security plc is admitted to trading on AIM (AIM:NWT).

For more information, please visit: www.newmarksecurity.com

Safe. Seamless. Secure