Nantong Golden Probe Inspection Service is a Nantong-based inspection contractor delivering structural testing services for commercial shipping along the lower Yangtze River. The company is approved by ABS, China Classification Society and DNV, giving its technicians access to a wide cross-section of internationally trading vessels calling at Yangtze and East China Sea ports. Core technical activity centres 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 carried out by trained divers and supervised by qualified inspectors. Nantong Golden Probe also undertakes non-destructive testing and remote inspection assignments, applying ultrasonic, magnetic particle and dye penetrant methods to welds, structural details and machinery components during ship repair and newbuilding work. Reports are prepared in formats accepted by attending class surveyors, with deficiency findings indexed for shipyard rectification planning. Operating from Nantong places the team within reach of the dense cluster of newbuilding and repair yards on the lower Yangtze and the deep-water anchorages used by ships preparing for cargo operations. Procedures follow current IACS unified requirements and class society guidance for hatch cover testing, watertight integrity verification and underwater surveys, while equipment calibration and personnel qualifications are maintained in line with the requirements of the approving societies. Nantong Golden Probe coordinates attendances with class surveyors and shipyard planners so that tightness, NDT and underwater work are completed within a single mobilisation when survey programmes permit. Records of test pressures, acceptance criteria and dive logs are retained for traceability, and reports are released in English where required for international clients running mixed-flag fleets through the Yangtze trades.