Mak Billy Ka Chun
| Company | Stock Code | From | To | Position(s) | Release Date / Document Links | Reason for Change |
|---|---|---|---|---|---|---|
| Justin Allen Holdings Limited | 01425 | 16-Apr-18 | 18-Feb-20 | CoSec | ||
| China Fiber Optic Network System Group Ltd. | 03777 | 15-Sep-16 | 16-May-17 | CoSec |
| Company | Stock Code | From | To | Position(s) | Release Date / Document Links | Reason for Change |
|---|---|---|---|---|---|---|
| Justin Allen Holdings Limited | 01425 | 16-Apr-18 | 18-Feb-20 | CoSec | ||
| China Fiber Optic Network System Group Ltd. | 03777 | 15-Sep-16 | 16-May-17 | CoSec |