| TONTEC HANGSEN LIMITED | Private company limited by shares | Live |
| HANGSENG HOLDING (HONGKONG) CO., LIMITED | Private company limited by shares | Live |
| Hangseng Grand Company Limited | | Live |
| HANGSENG INTERNATIONAL INVESTMENT GROUP CO., LIMITED | Private company limited by shares | Live |
| HK HANGSENG TECHNOLOGY INDUSTRY LIMITED | Private company limited by shares | Live |
| HANGSENG (NINGBO) MAGNETECH CO., LIMITED | Private company limited by shares | Live |
| HANGSENG MEDICAL GROUP HOLDING LIMITED | Public company limited by shares | Live |
| HANGSENG (HK) PLASTICS CO., LIMITED | Private company limited by shares | Live |
| Hangseng international trade Limited | | Live |
| HANGSENGHANG INTERNATIONAL HOLDING (H.K.) LIMITED | Private company limited by shares | Live |
| Hangsengteck HK Limited | Private company limited by shares | Live |