Sealand Star (Zhoushan) Shipping Co., Ltd operates from Zhoushan, an island-based Zhejiang Province city that forms the eastern half of the combined Ningbo-Zhoushan port complex, the world's busiest port by cargo throughput, with major crude, bulk, container and ship-repair facilities spread across the archipelago including the Cezi, Liuheng and Daxie islands. The company provides on-board technical attendance covering lifesaving, fire-safety, radio-survey, tightness-testing, thickness-gauging and Ro-Ro door inspection scopes to commercial tonnage calling Zhoushan-area berths and the surrounding archipelago anchorages used for crew change, bunkering and routine maintenance. Lifesaving services include lifeboat and rescue boat annual servicing, davit and launching system load testing, liferaft servicing, immersion-suit renewal and breathing apparatus maintenance on EEBD and SCBA sets. Fire-safety work covers portable extinguisher recharge, fire main and hydrant testing and inspection of fixed installations. Radio-survey scope covers GMDSS annual testing, GMDSS equipment maintenance and AIS annual inspection with verification of static and dynamic data. Tightness, gauging and hull scopes cover ultrasonic hatch-cover testing, watertight integrity checks, hull ultrasonic thickness measurement against original scantlings, and Ro-Ro door inspection on ferries and ro-ro vessels including hinge, cleat and seal verification. Sealand Star holds service supplier recognition by Bureau Veritas, the Indian Register of Shipping and the Korean Register, allowing reports to support class periodical, intermediate and special surveys on tonnage trading through the East China Sea, with attendance organised at the Ningbo-Zhoushan terminals and the surrounding anchorages used by ocean-going commercial tonnage. Customers include shipowners, ship managers, technical superintendents and port agents arranging routine maintenance attendance during commercial port calls.