China Open and Sohu have entered into a five-year sponsorship agreement for the first-ever China Open tennis championship to debut in the Beijing from September 10 – 26, 2004.

Sohu has become the Official Media Partner, Wireless Content Provider and Website of China Open, making it one of the main tournament sponsors. Under this five-year agreement, Sohu wins the exclusive right to host, develop and operate the Official China Open website and develop affiliated online fan clubs. China Open also grants Sohu the exclusive right to webcast daily highlights and post-match player interviews at the Official China Open website and get access to 'behind the scene' footage of China Open, such as at the player lounge and practice court. During the event Sohu has the exclusive right to host two daily online chat sessions with China Open players.

In addition, Sohu has been designated the exclusive partner to offer the Chinese public wireless live scores, Event related news, pictures, audio and video content on short messaging services (SMS), multimedia messaging services (MMS), wireless application protocol (WAP) and interactive voice response (IVR).