Yixing–union, founded in 1986, has the subsidiaries of Jiangsu Xielian Union Thermo Electron Group Co., Ltd., Yixing-union Biochemical Co., Ltd., Heilongjiang Huanan Union Baochun Thermoelectricity Co., Ltd. After years' development, the company has formed two major businesses: thermoelectricity and biochemical industries, meanwhile, the company is consistent with national energy policy development and gradually devotes to the development of new energy resources.