Costain Group PLC

5 August 2024

Costain Group PLC
('the Company')

Change of Registered Office Address

The Company announces that its registered office address has changed from Costain House, Vanwall Business Park, Maidenhead, Berkshire SL6 4UB to Seventh Floor, 70 St Mary Axe, London, EC3A 8BE with immediate effect.

Enquiries:

Investors and analysts                                                                   paul.sharma@costain.com

Paul Sharma, Costain                                                                      +44 (0) 7867 501188

Financial media - Headland                                                          costain@headlandconsultancy.com

Andy Rivett-Carnac                                                                         +44 (0) 7968 997 365

Charlie Twigg                                                                                   +44 (0) 7946 494 568