20 March 2025

Costain selected by Urenco for major growth programme

Programme delivery partner role will upgrade infrastructure at Capenhurst site

Costain Group PLC ("Costain") today announces that it has been chosen as programme delivery partner by Urenco to deliver new and upgraded infrastructure at its site in Capenhurst, Cheshire.

The framework is expected to see contracts awarded to Costain over a minimum of three years and will see Costain lead and deliver an integrated programme for Urenco's infrastructure investment activities.

Urenco's Capenhurst site provides uranium enrichment services to produce fuel for civil nuclear power stations in the UK and around the world to generate low-carbon electricity.

Alex Vaughan, CEO of Costain, said:

"Costain has a long and successful track record in delivering critical national infrastructure that creates a sustainable future. This new role is an example of our strategic focus on growth in strong markets and building a resilient customer mix. We will draw on our expertise to ensure predictable, best-in-class delivery for Urenco, as we create a more prosperous, resilient and decarbonised UK."

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

Notes to editors

Costain helps to improve people's lives by creating connected, sustainable infrastructure that enables people and the planet to thrive. We shape, create and deliver pioneering solutions that transform the performance of the infrastructure ecosystem across the UK's transport, energy, water, and defence markets.

We are organised around our customers, anticipating and solving their challenges and helping to improve performance. By bringing together our unique mix of construction, consulting and digital experts we engineer and deliver sustainable, efficient and practical solutions.