Chief, Natural Resources Division, Economic and Social Commission for Asia and the Pacific since 1990. Deputy Director-General, Department of International Cooperation, State Science & Technology Commission, China, 1988-1990. Executive Deputy Director-General, National Nuclear Safety Administration, China, 1986-1988.
Deputy Chairman, China Nuclear Energy Law Drafting Committee(s), 1986-1988. Deputy Director, Division Chief, Deputy Division Chief, Department of International Cooperation, State Science & Technology Commission, China, 1980-1986. Commercial Secretary, Embassy of China, Italy, 1976-1980.
Department of Foreign Affairs, Chinese Academy of Sciences, 1971-1976. Department of International Relations, State Science & Technology Commission, 1964-1971. Commercial Attach6, Chinese Office of the Charg6 d’Affaires to United Kingdom, 1961 -64.
Assistant & Lecturer, Department of Engineering Physics, Qinghua University, China, 1957-1961.