| Hong Kong Life Sciences And Technologies Group Limited | 08085 | 30-Nov-09 | | ED | | |
| Boillhealthcare | 01246 | 06-Mar-15 | 30-Dec-24 | Non-Executive Director | | Resigned to focus on other personal commitments. |
| Wan Kei Group | 01718 | 07-Jan-21 | 04-Nov-24 | Non-Executive Director | | In order to devote more time to personal commitments and other businesses. |
| Yuk Wing Gp | 01536 | 04-Jun-21 | 02-Jul-24 | ED | | Due to his other career commitments which requires more of his attention and dedication |
| Ming Lam Holdings Limited | 01106 | 17-Jul-19 | 14-Aug-20 | ED | | |
| Ming Lam Holdings Limited | 08065 | 17-Jul-19 | 14-Aug-20 | ED | | |
| Detai New Energy Group Limited | 00559 | 01-Dec-15 | 19-Mar-20 | Non-Executive Director | | |
| Hsin Chong Group Holdings Limited | 00404 | 23-May-15 | 29-Mar-19 | Non-Executive Director | | |
| China Energy Development Holdings Limited | 00228 | 05-Oct-05 | 30-Jun-16 | ED | | |
| Wuxi Life International Holdings Group Limited | 08148 | 17-Mar-10 | 16-Mar-16 | INED | | |
| Hong Kong Life Sciences And Technologies Group Limited | 08085 | 19-Oct-09 | 30-Nov-09 | Non-Executive Director | | |
