| HKTC CH Limited | Private company limited by shares | Live |
| HKTC Company Limited | Private company limited by shares | Live |
| HKTC PTC LIMITED | Private company limited by shares | Live |
| HK.T-C Buttons and Crafts Limited | Private company limited by shares | Live |
| HKTC HOLDING LIMITED | Private company limited by shares | Live |
| HKTC HOLDINGS LIMITED | Private company limited by shares | Live |
| HKTC Corporate Services Limited | Private company limited by shares | Live |
| HKTC GREEN ENERGY TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| HKTC TELECOMM LIMITED | Private company limited by shares | Dissolved |
| HKTC TRADING COMPANY LIMITED | Private company limited by shares | Live |
| HONG KONG ARTS TRAINING INSTITUTE FOR TALENT CHILDREN (HKTCI) LIMITED | Private company limited by shares | Dissolved |
| HKTCS LIMITED | | Live |