| Authorized Director of Securities and Derivatives Business Operator KKP DIME SECURITIES CO.,LTD. | 21/07/2022 | |
| Director of Securities and Derivatives Business Operator KIATNAKIN PHATRA ASSET MANAGEMENT CO.,LTD. | 26/07/2024 | |
| Fundamental Investment Analyst on Securities | 01/01/2023 | 31/12/2024 |