Hydrotek Public Co.,Ltd. is engaged in construction and environmental engineering management business. Its principal business includes water treatment and wastewater treatment system by construction service and selling of related supplies. The firm operates its business through four segments: Water Treatment Plant, Wastewater Treatment Plant, Solid Waste Treatment Plant and Waste to Energy. Water Treatment Plant includes Portable Water, Demineralization Plant, Desalination Plant, and Mobile Water Treatment Plant. Wastewater Treatment Plant include Wastewater Recycle Plant, and Wastewater Treatment to achieve standard. The company was founded on November 17, 1982 and is headquartered in Bangkok, Thailand.