| Authorized Director and Manager of Securities and Derivatives Business Operator TREASURIST INVESTMENT ADVISORY SECURITIES CO.,LTD. | 24/08/2018 | |
| Authorized Director and Manager of Securities Business Operator TREASURIST MUTUAL FUND BROKERAGE SECURITIES CO.,LTD. | 21/07/2021 | |
| Complex Type 1 Investment Consultant | 01/01/2023 | 31/12/2026 |
| Fundamental Investment Analyst on Securities | 01/01/2023 | 31/12/2026 |