Mr. Dong Zhang: Born in 1974, Ph.D. candidate, postdoctoral fellow in economics, senior gold investment analyst. He used to be the deputy general manager of Shenzhen Qiangzhuang Computer Technology Co., Ltd., the deputy general manager of Shenzhen Brain Times Economic and Cultural Co., Ltd., the assistant to the president of Gangling Culture Media Co., Ltd., the general manager of Shenzhen Zhong Shi Advertising Co., Ltd., the general manager of Heilongjiang Liuguifu Jewelry Co., Ltd. and the president of Liuguifu Jewelry Group Co., Ltd.; He is currently the executive director of Shenzhen Yongtian Shengdao Investment Development Co., Ltd., the president of Liuguifu Jewelry Group Co., Ltd. for the last five years, and now the executive director of Shenzhen Yongtian Shengdao Investment Development Co., Ltd.