Nana: Female, born in 1976, China nationality, Canadian permanent residency. Graduated from Stanford University with a master's degree. He used to be a consultant of Morit Group, vice president of Sequoia Capital in China, director of Dong Tian Fashion (Beijing) Culture Communication Co., Ltd., director of Shanghai Jingyu Culture Communication Co., Ltd. and director of China Shipping (Hainan) Haisheng Shipping Co., Ltd., and now he is a director of Beijing Jixin Taifu Electromechanical Technology Co., Ltd., executive vice president of Beijing Qian Fang Group Co., Ltd., 20 17,1. Ms Nana has obtained the qualification certificate of independent director recognized by China Securities Regulatory Commission.