Newbuilding
Siem Offshore has ordered two Offshore Subsea Construction Vessels (OSCVs) at Fujian Mawei Shipbuilding in China, with delivery scheduled for 2029 and 2030.

Each vessel will be equipped with a 400-tonne AHC subsea crane and a 50-tonne AHC subsea crane, providing substantial lifting capacity for subsea construction and offshore support operations.
Designed by Sirius Design & Integration in close cooperation with the Siem team and the shipyard, the vessels will measure approximately 145 metres in length, with a beam of 27 metres, and focus on operational flexibility and energy efficiency.
