Yao: Female, born in 1972, China nationality, with no permanent residence abroad, MBA. He is currently a director of Suzhou Guangyunda, Tianjin Guangyunda, Guangyunda Laser, Xiamen Guangyunda and Kunshan Mingchuang, a director and general manager of Dongguan Guangyunda, a personal director of Hong Kong Guangyunda and a supervisor of Hangzhou Guangyunda. At present, he is the vice president of Shenzhen Federation of Industry, the deputy secretary general of 3D Forming Interconnected Equipment Professional Committee, the vice president of Shenzhen 3D Printing Industry Innovation and Standards Alliance, the vice president of Shenzhen Nanshan District Federation of Industry and Commerce (General Chamber of Commerce), and the visiting professor of China People's Liberation Army Equipment College. He is currently the director and deputy general manager of our company.