Ruytech Co., Ltd. was established by three corporatations from Korea, China and Japan. We have developed a new type of double pipe heating for greenhouses and residences adopting a 'Thermosiphon' technique.Our heating pipe is easy to install and intended to contribute t o energy saving for agricultural/livestock farming and home with its cutting edge technology. We have acquired ISO 9001 and ISO14001 certificates.Established in 1999, Ruytech Co., Ltd. has annual revenues of US$4.2 million.