Hi-tech Spring Chemical Industry Co., Ltd. is one of the subsidiaries of Hi-tech Group. The group is including Dongying Hi-tech chemical industry Co., Ltd., (petroleum refinery); Dongying Hi-tech Spring chemical industry Co., Ltd., (fine chemicals); Dongying Tiandong biochemical industry Co., Ltd., (bio-pharmaceuticals); Shandong Hi-tech Shengli electrochemical Industry Co., Ltd. and Dongying Hi-tech Ruilin Chemical Industry Co.,Ltd(petroleum refinery).. The parent company founded in 1988, has 18 years' experiences of producing chemicals, certificate of ISO9001 and advanced management mechanism. Hi-tech spring founded in 2002,covers an area of more than 80,000 square meters and has the right to export and import by itself. It has acquired the authentication of ISO9001, ISO14001 and IS..