Established in 2012 and headquartered in Chongchuan District, Nantong, Vanguard Marine Technology Co., Ltd. is a marine technical services and product company operating along the Yangtze River and the East China Sea. The Vanguard group runs an ISO 9001:2015 certified quality management system and dispatches certified engineers to vessels in shipyards and at anchorages across the Yangtze River Delta, where many of China's largest newbuilding and repair facilities are clustered around Nantong, Shanghai, Jiangyin and Zhoushan. Field teams perform ultrasonic thickness measurement of hull plating and internal structures, with rope-access deployment available for high-level tank and hold inspections, hatch cover ultrasonic tightness testing under IACS UR Z17 and watertight integrity verification under SOLAS II-1, with reports formatted for class acceptance. Life-saving appliance work covers annual and five-yearly servicing of lifeboats and rescue boats, inflatable liferaft inflation and pack-up, davit and launching system inspections, inflatable lifejacket and immersion suit checks, and lifting appliance and gear surveys with proof load testing. Fire-fighting equipment servicing includes portable extinguisher recharging, fixed CO2, foam and water-spray system inspections, fire hose and hydrant testing and EEBD and SCBA breathing apparatus maintenance covering cylinder hydrostatic tests. Pressure vessel inspection on cylinders and accumulators and in-water hull surveys arranged through diving partners complete the portfolio. Vanguard Marine Technology Co., Ltd. is recognised as a service supplier by ABS, Bureau Veritas, DNV, the Indian Register of Shipping, Korean Register and Lloyd's Register, ensuring acceptance of its reports by attending class surveyors. Vanguard's field engineers also support sea trials, commissioning and warranty inspections for newbuildings delivered from Nantong, Taizhou and Zhoushan shipyards, providing combined LSA, FFE and structural inspection deliverables under a single project window.