Costain Group PLC

4 June 2025

Costain and Alliance Partners Secure Extension to Anglian Water Strategic Pipeline Scheme

Costain Group PLC ("Costain"), as part of the Strategic Pipeline Alliance (SPA), today announces that the SPA has been chosen by Anglian Water to deliver an additional 260 kilometres of major strategic pipeline in the East of England over the next five years, to improve resilience to drought and climate change by transferring water from wetter regions to drier parts of their region.

Water resilience is a critical area of focus for the water industry, with significant investment planned over the next 10 years. Costain has been working with Anglian Water through AMP7 to deliver their critical resilience programme and, as the industry transitions to AMP8, the SPA has been awarded this extension to the existing contract. The extension builds on the existing SPA interconnector work and will take the total length of the strategic pipeline bringing resilience of supply to East Anglia to 580km.

Alex Vaughan, chief executive officer, commented: "Creating a sustainable future for the UK is core to our business, with water resilience being a critical national need. We are pleased to continue working with Anglian Water and our SPA partners in delivering this essential new infrastructure.

This award builds on the strong positions we hold across the water industry through AMP8 as part of the £5.4bn forward work position we reported as at the end of 2024, and we expect to see further awards as we build on our strong portfolio of work in supporting water companies to meet their regulatory commitments."

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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.