According to Tian Yan's inquiry, Mao Jidong holds a master's degree and is a senior engineer. 1July 1997 to May 201June, engaged in management work in Shaanxi Construction Engineering Fifth Construction Group Co., Ltd., and served as deputy general manager of Shaanxi Construction Engineering Group Co., Ltd. from May 201June to March 2020; Since March 2020, he has served as a director of Shaanxi Construction Engineering Holding Group Co., Ltd.; Since February 2020, he has served as deputy general manager of the company.