One. According to official website of Du Yan Education Bureau, he is currently the deputy director of Yandu Education Bureau of Yancheng City and the president (dean) of Du Yan Open University (community college). Yandu District belongs to Yancheng City, Jiangsu Province, which is located in the east of central Jiangsu Province, between Jianghuai, Lixia Estuary and the upper reaches of Xinyang Port.