TTW Public Company Limited is a Thailand-based company engaged in the production and distribution of tap water to the Provincial Waterworks Authority (PWA) in the vicinity of West Bangkok. The Company produces tap water by pumping raw water from the middle course of the Tha Chin River into the tap water production process at the TTW water treatment plant on the east side of the river at Bang Rakam Sub-District, Banglen District, Nakhon Pathom Province. It has built a chemical storage building separate from the water treatment plants to store chemicals before they are automatically added into the water production system. The tap water produced from the Banglen water treatment plant is stored in water storage tanks with a capacity of about 30,000 cubic meters, and the tap water at the Krathum Baen water treatment plant is stored in two connected water storage tanks with a capacity of about 25,000 and 20,000 cubic meters. The Company has a raw water and a tap water distribution system.