37 Construction of floating pontoons for supporting decking and buildings, floating docks, and replacement parts and fittings therefore; Installation and repair of floating pontoons for supporting decking and buildings, floating docks, and replacement parts and fittings therefore; Inspection services in the course of construction of floating pontoons for supporting decking and buildings, floating docks, and replacement parts and fittings therefore; rental of construction and building equipment; construction of floating pontoons, pier breakwaters, piers, harbors, aircraft platforms, fuel stations, fish farms, and ferry landings; underwater construction; harbour construction; repair of floating pontoons, pier breakwaters, piers, harbors, aircraft platforms, fuel stations, fish farms, and ferry landings; installation services for floating docks, pier breakwaters, and pontoons; Advisory services relating to the maintenance, renovation, and cleaning of buildings; pier breakwater building; concreting being concrete pouring services; Construction, repair, and maintenance of charging stations for electric vehicles