Tsinghua Tongfang Co., Ltd. is engaged in information and environmental industries. The Company's information businesses include computer business; application information business such as digital urban and industrial information systems, as well as security systems, and digital television systems such as digital communication and equipment manufacture, as well as Internet application. The Company's energy and environmental business include environment protection and building energy saving. The Company is also involved in science and technology park related business. During the year ended December 31, 2007, the Company obtained approximately 76% and 22% of its total revenue from information and environment businesses, respectively.