The experience of Chen Jian: He was born in 1942 in Wuxian, Jiangsu Province. He worked in the Department of International Organizations and Conferences of Ministry of Foreign Affairs of the People's Republic of China from 1966 to 1971. He was the suite of China's Permanent mission to the U.N. And he continued to work in the Department of International Organizations and Conferences of Ministry of Foreign Affairs from 1977 to 1980. He was the third, second and first secretary China's Permanent mission to the U.N. from 1980 to 1984 and special assistant to Executive Director's Office of International Monetary Fund from 1984 to 1985. He was the director, counselor and deputy director general of the Department of International Organizations and Conferences of Ministry of Foreign Affairs from 1985 to 1992. He was the Chinese alternate and Ambassador extraordinary and plenipotentiary to U.N. from 1985 to 1992. He was the director of Department of Information and the spokesman of Ministry of Foreign Affairs from 1994 to 1996. He was the assistant minister of Ministry of Foreign Affairs from 1996 to 1998. He was the Chinese ambassador extraordinary and plenipotentiary in Japan from 1998 to 2001. He was the UN undersecretary general from 2001 to 2007. He was the chairman of United Nation Association of the People's Republic of China and the director of College of International Relations of Renmin University of China.