CCCC has overcome global challenges in river, lake and reservoir treatment, including sediment disposal and residual water purification. It has built a comprehensive technological system centered on “Taihu Star,” “Taihu Light,” algae-water co-treatment, wetland purification, underwater forests, and sediment remediation. The company pioneered fully offshore, smart, and green integrated waterborne dredging equipment, breaking through bottlenecks in water quality improvement during low-temperature and flood seasons, enhancing nitrogen and phosphorus removal efficiency, and providing systematic solutions for river, lake and reservoir treatment and ecological restoration. These technological achievements have supported major projects such as the ecological restoration of Ulansu Lake and Taihu Lake.