Founded in 2011, China Online Education Group (www.51talk.com) launched its official website in the November of the same year, and successively received the investment from several reputable institutional investors at home and abroad such as Zhen Fund, Shunwei Capital, DCM and Sequoia Capital. China Online Education Group submitted its prospectus in June 2016, becoming China's first online education company that initiates the process of going public in U.S. With the headquarters in Beijing and the subsidiaries and offices in Shanghai, Wuhan, Shenzhen and Philippines, China Online Education Group currently is not only the leading online education brand that owns the largest number of students and foreign teachers, but also an one-stop online education platform helping users achieve overall improvement of their comprehensive practical ability of English. In September 2015, China Online Education Group employed Li Na, an international tennis star, to be its spokesperson. Besides, China Online Education Group launched its"Online Education Platform Strategy"in 2016, dedicated to offering quality educational resources around the globe to Chinese students. Further, China Online Education Group has developed strategic cooperation with authoritative institutions in the industry of foreign language teaching and research, and now has co-produced a language examination system with Foreign Language Teaching and Research Press. Meanwhile, China Online Education Group has reached a consensus with Cambridge University Press to initiate strategic cooperation multi-dimensionally.