This sub-class includes the building and/or repairing of ships, except vessels for sports or recreation, and/or the construction of off-shore floating or fixed structures such as floating cranes and/or drilling platforms or wind farm substations. This sub-class also includes: •manufacture of sections for ships and/or off-shore floating structures (except oil rigs) •manufacture of submersible drones •building and/or repairing of: - commercial vessels:  passenger vessels, ferry boats, cargo ships, tankers, tugs, etc. - warships - fishing boats and/or fish-processing factory vessels - hovercraft (except recreation-type hovercraft) - major hull assemblies •construction of off-shore floating or fixed structures, including: - drilling/production platforms, floating or submersible (except drilling rigs) -off-shore floating structures (e.g., floating docks, pontoons, coffer-dams, floating landing stages, buoys, floating tanks, barges, floating cranes, non-recreational inflatable rafts) -off-shore fixed structures (e.g., off-shore wind farm substations, high voltage direct current off-shore converter platforms) •conversion of ships into off-shore floating or fixed structures