Chongqing Zhanhongtu Salvage Engineering Co., Ltd. is a Yangtze River salvage and marine engineering contractor based in Chongqing that handles towing, refloating, underwater inspection and hull works on inland river tonnage and on retired oceangoing units re-positioned upstream through the Three Gorges Dam. The company gained wider visibility in 2020 when it took the tow contract for Hull 166, the retired Type 051 destroyer Zhuhai, moving the ship from Nanjing into the Yangtze on 27 September 2020 and bringing it up through the Three Gorges Dam on 17 October before docking it at Mingyuetuo Wharf in the Donggang area of Chongqing's Nan'an District on 23 October for conversion into a public patriotism education exhibit. Day-to-day work focuses on inland salvage along the upper Yangtze and on supporting ship repair yards in the Chongqing reach, where Zhanhongtu provides commercial diving teams, lift bags and pontoons, anchor handling and emergency response services. Under recognition by the China Classification Society the firm is registered to provide ultrasonic hatch cover tightness testing, hull ultrasonic thickness gauging, watertight integrity testing and underwater inspections on classed river and seagoing ships docking in the Chongqing port area, complementing its core salvage and wreck removal activity on the river.