DIF Capital Partners (DIF) has announced that DIF Infrastructure III (DIF III) and DIF Infrastructure IV (DIF IV) have agreed to the sale of their 10.66% shareholding in the Thames Tideway Tunnel project to Amber Infrastructure-related entities and Dalmore Capital.

The Thames Tideway tunnel will be approximately 25 km long, 7.2 meters in diameter and will run up to 65 meters below the River Thames. Starting in West London, the main tunnel will follow the route of the Thames to connect with the existing Lee Tunnel, with sewage being transferred to the Beckton Sewage Treatment Works in East London. It will help to prevent the release of 37 million m3 of untreated sewage that is currently discharged into the River Thames in a typical year.

The transaction occurs in connection with the end of the life of the DIF III fund. RBC Capital Markets acted as financial advisor and Norton Rose Fulbright as legal advisor for DIF.