Tongtong Zhao, aged 53, a co-founder of our Group, has served as our Director since February 4, 2007. Ms. Zhao is primarily responsible for supervising and providing independent judgment to our Board. Ms. Zhao has served in several companies, including the supervisor of Shanghai Asia-Tang Health Technology Development Co., Ltd., the executive director of Shanghai Hong Ying Hi-Tech Co., Ltd., and the executive director of Shanghai Xie Cheng Science and Technology Co., Ltd..Ms. Zhao received her Master of Engineering degree from Shanghai Jiao Tong University (上 海交通大學) in the PRC in March 1992 and her Master of Business Administration degree from McGill University in Canada in June 2003. She also obtained her bachelor’s degree with a major in biomedical engineering and instrument from Southeast University (東南大學) in the PRC in July 1989.