| Authorized Director and Manager of Derivatives Business Operator HUA SENG HENG GOLD FUTURES CO.,LTD. | 13/02/2009 | |
| Authorized Director and Manager of Securities Business Operator HUA SENG HENG GOLD FUTURES CO.,LTD. | 02/05/2011 | |
| Fundamental Investment Analyst on Capital Market | 01/01/2023 | 31/12/2024 |