| Authorized Director and Manager of Derivatives Business Operator MBMG INVESTMENT ADVISORY CO.,LTD. | 25/07/2013 | |
| Authorized Director and Manager of Securities Business Operator MBMG INVESTMENT ADVISORY CO.,LTD. | 17/07/2013 | |
| Fundamental Investment Analyst on Securities | 09/02/2024 | 31/12/2026 |