Administrative officer Office of Technology Cooperation, United Nations, New York City, 1967-1970, program management officer, 1970-1983, economic affairs officer department technical cooperation for development, 1983-1987. Professor Public Administration, Tunghai University Taichung, Taiwan, 1987-1989. Instructor New York University., 1969-1971.
Board directors Golden City Commercial Bank, New York City, 1989-1995. Adviser Taipei Economic and Cultural Office, New York City, since 1992, International Commercial Bank of China, New York City, since 1995.