Watts International Maritime Co. Ltd. is an investment holding company, which engages in the provision of port, waterway, marine engineering, and municipal public engineering services. It operates through the Marine Construction and Municipal Public Construction segments. The Marine Construction segment is involved in the infrastructure construction of ports, waterway engineering, and other services. The Municipal Public Construction segment focuses on the construction of public infrastructure within cities, urban greening, and construction of buildings. The company was founded on December 20, 2017 and is headquartered in Shanghai, China.