Xiamen Xiamin Diving Engineering Co., Ltd. is a commercial diving and underwater inspection contractor based in Xiamen, Fujian Province, supporting ships and offshore assets calling at Xiamen, Quanzhou, Zhangzhou and the wider Taiwan Strait port system. Diver teams undertake in-water hull, sea chest, rudder, propeller and thruster examinations together with marine growth surveys, cathodic protection checks, propeller polishing and minor underwater repair tasks. Underwater inspection in lieu of drydocking is documented with video and photographic records prepared in formats familiar to attending classification surveyors. Diver-deployed hull ultrasonic thickness gauging supports periodical thickness measurement programmes on bulk carriers, tankers, container vessels and general cargo ships, allowing scantling renewal data to be collected without removing the ship from service. Hatch cover ultrasonic tightness testing and watertight integrity testing complete on-deck inspection scopes that can be combined with subsea jobs during a single port call, and NDT and condition monitoring activities cover hull, lifting gear and small marine fabrications. Reports follow IACS, SOLAS and load-line practice and are prepared bilingually where requested. Xiamen Xiamin Diving Engineering operates within the directories of recognised service suppliers maintained by ABS, Bureau Veritas, CCS, DNV, Korean Register, Lloyd's Register and RINA, giving multi-flag owners trading through southeast China a regional contact for combined diving, thickness measurement and tightness testing campaigns coordinated around tide, cargo and bunkering windows. Equipment ranges include surface-supplied diving spreads, helmets with through-water communications, hydraulic and pneumatic tools for fastener removal and minor underwater repair, calibrated ultrasonic thickness gauges and digital underwater video and photographic kit, supporting fast turnaround on routine and unscheduled inspection tasks for owners, managers and shipyards.