***** Group Public Company Limited was registered on 10 April 2003 with the initial capital of 94 million bath due to the merge between ***** Group Co., Ltd and Heat Interchange Co., Ltd whose major share are from the group of Poomsanoh and Wangkorkiat. The major business is to supply the Evaporator Coil, Condenser Coil and Chilled Water Coil which are the parts of air conditioning, refrigerant, and other heat exchangers to sell locally and internationally.