Past
- President of The Thammasat Economics Association - (1986 - 1988)
- President of The Thai Forex Club (1985 - 1986)
- Senator (1992 - 1993)
Present
- Director and Secretary of Puey Foundation
- Chairman of Puey Ungphakorn Institute
- Director of Civil Service Commission
- Director of Asian Institute of Technoloty
- Member of the Thammasat University Council
- Member of the Board of Governors of Asian Institute of Management