TTW Public Company Limited primarily engages in the production and distribution of treated water to the Provincial Waterworks Authority (PWA) in various districts of Nakhon Pathom and Samut Sakhon provinces in Thailand. The company also offers water treatment and maintenance services, manages wastewater treatment systems, and operates water supply projects. TTW Public Company Limited was founded on September 11, 2000, and is headquartered in Sam Phran, Thailand.