Sealuck Marine Service & Engineering Co., Limited is a marine technical services contractor based in Qinhuangdao, Hebei Province, supporting commercial shipping along the Bohai Bay and broader northern Chinese coastline. Qinhuangdao is a major coal export and dry bulk gateway, and Sealuck dispatches inspection and servicing teams to vessels alongside, at anchorage and in nearby shipyards across the Bohai Rim, including Tianjin, Caofeidian and Dalian when scheduled. The company's service scope is structured around statutory survey support and is organised under three main pillars. The LSA pillar covers periodic life-saving appliance testing, lifeboat and rescue boat servicing under IMO MSC.402(96) and MSC/Circ.1206, liferaft servicing, immersion suits and lifejacket inspection. The fire-fighting equipment pillar includes extinguisher recharge, fixed CO2, foam and water-spray system maintenance, fire hose and hydrant testing and breathing apparatus including EEBD and SCBA, supported by pressure vessel inspection. The hull and structural pillar covers ultrasonic hatch cover tightness testing in accordance with IACS UR Z17, hull ultrasonic thickness gauging, watertight integrity testing and in-water hull surveys with diver support, together with conventional non-destructive examination methods such as magnetic particle and dye penetrant testing. Sealuck is recognised by a wide panel of classification societies including CCS, ABS, Bureau Veritas, DNV, Korean Register and Lloyd's Register, allowing reports issued by the team to be submitted for statutory class survey endorsement on bulk carriers, tankers and other commercial tonnage.