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Costain, Morgan Sindall, Hochtief to work on Sellafield nuclear site

13th Oct 2025 08:57

(Alliance News) - Shares in Costain Group PLC jumped on Monday after Costain and two other companies won a place on a GBP2.9 billion project for the decommissioning of the Sellafield nuclear power plant in Cumbria, north west England.

Costain will join the infrastructure delivery partnership, which will provide essential services for the Sellafield site, including electricity distribution, water, road and rail networks, and bridges.

The work will be split into three lots, with Costain acting as the utilities partner. Morgan Sindall Infrastructure, part of Morgan Sindall Group PLC, will be electrical distribution partner. Hochtief (UK) Construction Ltd, part of Hochtief AG, will be civils partner.

"Our job at Sellafield is to create a clean and safe environment for future generations," said James Riddick, chief supply chain officer for Sellafield Ltd. "That means safely, securely, and cost effectively dealing with the legacy of historic operations on our site. To deliver this we need robust and reliable infrastructure to support our nuclear decommissioning and waste management activities."

The contracts are for an initial nine years with an option for a further six, running to 2040.

Costain said it expects its portion of the GBP2.9 billion total to be worth up to GBP1 billion. Hochtief said it expects its portion to be worth up to GBP595 million.

Costain shares were up 11% to 155.92 pence early Monday in London. Morgan Sindall shares were up 0.2% to 4,950.00p. Hochtief shares were up 1.0% to EUR262.00 in Frankfurt.

By Tom Waite, Alliance News editor

Comments and questions to [email protected]

Copyright 2025 Alliance News Ltd. All Rights Reserved.


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