Jack Li

SINA Corp. engages in the provision of online and mobile media services. It operates through the following segments: SINA Portal, Weibo, and Others. The SINA Portal segment offers automobile, fast-moving consumer goods, Internet, financial, information technology, and telecommunication services. The Weibo segment focuses on the marketing and development of the social media platform, Weibo. The Others segment includes mobile value added services; and other services. The company was founded in March 1999 and is headquartered in Shanghai, China.

TOM Online Inc. operates internet portals to provide wireless value-added services, online advertising and commercial enterprise solutions. It is a premier online brand in China targeting the young and trendy demographics. The company's services include SMS, MMS, WAP, wireless IVR (interactive voice response) services, content channels, search and classified information and free and fee-based advanced email. TOM Online is headquartered in Hong Kong, Hong Kong.

Rock Mobile Corp. creates and distributes music-centric entertainment services. The firm is a provider of entertainment services via internet, mobile internet and other mobile devices. It offers integrating and producing entertainment contents (including music and games, etc), constructing digital entertainment cloud platform and spreading its productions and services via internet, mobile internet, operators and mobile devices. The company was founded by Sam Duann and Joshua Maa in September 2002 and is headquartered in Guangzhou, China.