Keller Group PlcLSE: KLR

Company Secretary Change

· Issued by Keller Group Plc

New Keller Logo

8 December 2025

Keller Group plc

COMPANY SECRETARY CHANGE

Keller Group plc ('Keller', the 'Company') is pleased to announce the appointment of Catherine Shuttleworth as General Counsel and Company Secretary with effect from 5 December 2025. Catherine joined Keller as General Counsel in March 2025 and has significant legal and regulatory experience having previously held the role of Group Legal Director of the Packaging Division at DS Smith Plc and, before that, working at Freshfields Bruckhaus Deringer LLP in the Global Transactions team.

Keller also announces that after 12 years with the Company, most latterly as Chief Sustainability Officer and Company Secretary, Kerry Porritt is leaving at the end of the year. The Board wishes to express its gratitude to Kerry for her significant contribution to the Company, and wishes her well for the future.

For further information, please contact:

Keller Group plc

www.keller.com

James Wroath, Chief Executive Officer

020 7616 7575

Notes to editors:

Keller is the world's largest geotechnical specialist contractor providing a wide portfolio of advanced foundation and ground improvement techniques used across the entire construction sector. With around 10,000 staff and operations across five continents, Keller tackles an unrivalled 5,500 projects every year, generating annual revenue of c£3bn.