Shanghai Baocheng Ship Engineering is a Shanghai-based inspection contractor supporting commercial shipping at the Yangtze Delta's major ports and repair facilities. The firm is approved by ABS, China Classification Society and DNV, giving its technicians access to a broad cross-section of internationally trading vessels calling at Shanghai and nearby terminals. Service work is concentrated on ultrasonic hatch cover tightness testing for bulk carriers and general cargo ships, watertight integrity testing of bulkheads, doors and deck closures, and underwater inspection in lieu of drydocking conducted by trained dive teams and supervised by qualified inspectors. Shanghai Baocheng also undertakes a programme of non-destructive testing and remote inspection assignments, applying ultrasonic, magnetic particle and dye penetrant methods to welds, structural details and machinery components during repair and newbuilding work. Reports are produced in formats accepted by attending class surveyors and indexed to support shipyard rectification planning during scheduled repair calls. Operating from Shanghai gives practical access to the deep-water container terminals of Yangshan, the bulk and general cargo berths along the Huangpu River and the cluster of repair yards in the wider Yangtze estuary. Procedures follow IACS unified requirements and class society guidance for tightness testing, hatch cover examination and underwater attendance, with equipment calibration and personnel qualifications maintained in line with each approving society's expectations for service providers. Shanghai Baocheng coordinates tightness, NDT and underwater attendances with class surveyors and shipyard planners so related survey items can be closed out within a single mobilisation when survey programmes allow. Records of test pressures, acceptance criteria, NDT findings and dive logs are retained for traceability, and reports are released in English where required for international clients managing enhanced survey items in mixed-flag fleets.