| Authorized Director and Manager of Securities and Derivatives Business Operator BUALUANG SECURITIES PUBLIC CO.,LTD. | 08/01/2009 | |
| Authorized Director of Securities and Derivatives Business Operator BANGKOK CAPITAL ASSET MANAGEMENT CO.,LTD. | 07/11/2014 | |
| Director of Securities Business Operator TSFC SECURITIES PUBLIC CO.,LTD. | 19/04/2021 | |
| Fundamental Investment Analyst on Securities | 01/01/2024 | 31/12/2025 |