Watts International Maritime Company Limited, an investment holding company, provides port, waterway, marine engineering, and municipal public engineering services in the People's Republic of China. It operates through two segments, Municipal Public Construction and Marine Construction. The Marine Construction segment includes infrastructure construction of ports, waterway engineering, and other services. The Municipal Public Construction segment engages in the construction of public infrastructure within cities, urban greening, and construction of buildings. The company was formerly known as Watts International Maritime Engineering Limited and changed its name to Watts International Maritime Company Limited in January 2022. Watts International Maritime Company Limited was incorporated in 2017 and is headquartered in Shanghai, China.