Qingdao Shiplus Marine Service Co., Ltd. is a marine technical services and underwater engineering company founded in 2011 with headquarters in Qingdao, Shandong Province. From its Qingdao base the firm has built a domestic service network covering northern, central and southern China through entity subsidiaries and branch stations, including operations referenced in Dalian, Zhoushan, Fangchenggang and Tianjin. The workforce of around sixty-five professional staff combines project managers, marine engineers, surveyors, NDT technicians and commercial divers, with technicians and divers holding training certificates from relevant equipment manufacturers, industry associations and classification societies. The core scope is class-accepted underwater hull inspection in lieu of drydocking, covering CCTV-recorded close-up examination of plating, weld seams, sea chests, rudder, propeller and stern frame, together with underwater hull cleaning by mechanical brush-cart, in-water propeller polishing, underwater cutting and welding, underwater bolting and shipping-equipment salvage. Additional services include integrated ship technical management, voyage repair coordination and overseas drydock superintendency. Shiplus operates under a documented quality, environmental and occupational-health management framework with DNV-certified ISO 9001 and SEATONE-certified ISO 14001 and ISO 45001 systems. The company is approved for in-water survey work by DNV, Korean Register, Lloyd's Register, ABS, Bureau Veritas, China Classification Society and RINA, allowing its diving inspection reports to be submitted directly for class confirmation of underwater hull condition at ports with suitable water visibility throughout mainland China. Field attendance is scheduled around cargo operations and short port stays so that owners and managers can close hull-renewal, special and intermediate survey items without dedicated drydock time, supporting voyage-by-voyage compliance with class and statutory periodicities.