Right Tunnelling Public Co. Ltd. engages in the construction business. The firm's services include tunnel and shaft construction, dam construction, hydro power plant, pipe jacking and horizontal directional drilling. It also offers slope protection and stabilization, earth and rock excavation, and geological exploratory drilling services. The company was founded by Chawalit Tanomtin on October 6, 2000 and is headquartered in Samut Prakan, Thailand.