Kingsoft operates four subsidiaries: Seasun for video game development, Cheetah Mobile for mobile internet apps,[2] Kingsoft Cloud for cloud storage platforms, and Kingsoft Office Software for office software, including WPS Office.[4] The most popular game developed by Kingsoft is JX Online 3, launched in 2009.[5] Kingsoft owns data centers in mainland China, Hong Kong, Russia, Southeast Asia, and North America.[6] The company is listed on the Hong Kong Stock Exchange.[8] In 2011, Bojun sold his 15.68% stake in Kingsoft to Tencent.