77 years
- None -
| 1998 - Present | Chairperson of Audit Committee - S&P Syndicated Public Company Limited |
| 1994 - 2023 | Company Secretary - Dynasty Ceramic Public Company Limited |
| 1994 - 2023 | Director - Dynasty Ceramic Public Company Limited |
| 2017 - 2023 | Company Secretary - Royal Ceramic Industry Public Company Limited |