Watts International Maritime Company Limited is an investment holding company that provides port, waterway, marine engineering, and municipal public engineering services in the People's Republic of China and Southeast Asia. It operates through two segments: Municipal Public Construction and Marine Construction. The Marine Construction segment covers port infrastructure, waterway engineering, environmental technology engineering, and other services, while the Municipal Public Construction segment handles urban public infrastructure, urban greening, and building construction. The company was formerly known as Watts International Maritime Engineering Limited and changed its name to Watts International Maritime Company Limited in January 2022. Incorporated in 2017, it is headquartered in Shanghai, China.