Thua Thien Hue Water Supply Joint Stock Company is a Vietnam-based company engaged in the production and distribution of clean water under the trademark HueWACO. The company also manufactures bottled drinking water under the brand Bach Ma, and supplies machineries and parts for water treatment and quality control. Other services which the company provides include consulting services for large scale water treatment projects, such as Quang Te II Water Treatment Plant, Phong Thu Water Treatment Plant, Loc An Water Treatment Plant and Loc Tri Water Treatment Plant. Its headquarter is located in Thua Thien-Hue province.