Yangzijiang Shipping Co., Ltd is a Lianyungang-based marine service contractor delivering an unusually broad range of safety, navigation, structural and pressure equipment work to commercial shipping using the ports of northern Jiangsu and the adjacent Yellow Sea coast. The firm holds service supplier recognition from Bureau Veritas, China Classification Society, Korean Register, Lloyd's Register, DNV, RINA, IRClass, ClassNK and the Polski Rejestr Statkow, an exceptionally wide approval set that gives technicians access to vessels operating under nearly every major class regime. Core activity covers life-saving appliance and fire-fighting equipment programmes including periodical LSA testing, lifeboat, rescue boat, davit and liferaft servicing, fire extinguisher recharge, fire hose, hydrant and breathing apparatus testing and inspection of immersion suits and lifejackets. Yangzijiang Shipping also undertakes VDR and S-VDR annual performance testing, GMDSS annual testing and service, AIS annual inspection, EPIRB and SART functional testing, hatch cover tightness testing, hull ultrasonic thickness gauging, watertight integrity testing, lifting appliance and gear survey, pressure vessel inspection and a broader programme of non-destructive testing and remote inspection. Working from Lianyungang gives the team practical access to one of northern Jiangsu's main container and bulk cargo ports and the surrounding anchorages. Procedures follow SOLAS, the LSA Code, IMO performance standards for radio and navigation equipment and IACS unified requirements for structural and pressure equipment work, with equipment calibration and personnel qualifications maintained accordingly. The team coordinates LSA, fire, radio, navigation, structural and pressure attendances within a single mobilisation when survey programmes allow, reducing the number of separate vendor visits required to close a vessel's annual programme. Records of LSA tests, recharged units, VDR APT data, GMDSS and AIS test results, measurements and pressure test data are retained for traceability, with reports released in English where required for international clients.