Global Infrastructure SherpaJan De Nul expands subsea cable fleet with two trenching support vessels
Jan De Nul is expanding its offshore energy fleet by adding two trenching support vessels for subsea cable burial. One new vessel will be built at the CMHI shipyard in China to an Ulstein design, while the company will also convert its vessel Henry Darcy into a trenching support vessel with a subsea robot ordered from Osbit. This expansion increases Jan De Nul's fleet to four vessels under construction for subsea cable installation and protection, and one under conversion, enhancing its capabilities in subsea cable infrastructure.
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- Jan De Nul's subsea cable fleet now includes four vessels under construction and one under conversion.
- One new trenching support vessel will be built at CMHI shipyard in China, designed by Ulstein.
- Existing vessel Henry Darcy to be converted, integrating a subsea robot from Osbit.
- Deal announced March 10, 2026.
Source Intelligence
One new trenching support vessel will be equipped with a trencher subsea robot capable of burying cables up to five metres deep. This new vessel will also be equipped with the company’s Ultra-Low Emission vessel technology designed to filter up to 99% of nanoparticles from exhaust gases and reduce polluting substances, and its engines will be able to run on biofuel and are prepared for future operation on methanol. The vessel Henry Darcy will be converted into a trenching support vessel equipped with a subsea robot specialised in burying cables in shallow waters. Jan De Nul now has four vessels under construction for the installation and protection of subsea cables and one vessel under conversion.
"Jan De Nul is expanding its offshore energy fleet with two vessels designed to bury submarine cables in the seabed."
"Jan De Nul added the vessel will be built at the CMHI shipyard in China to an Ulstein design."
"The vessel will be built at the CMHI shipyard in China to an Ulstein design."
"The robot for the vessel has been ordered from partner Osbit."
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