Tsinghua Tongfang Co., Ltd. specializes in information industry and energy and environmental industry. For its information business, the Company is principally engaged in computer business, application information business and digital television (TV) system business. The Company's application information business provides digital urban and industrial information systems, as well as security systems, while its digital TV system business provides digital TV systems, digital communication and equipment manufacturing, as well as Internet application. For its energy and environmental business, the Company offers environment protection and building energy saving services. The Company is also involved in science and technology park related business.