| LONG-HIGH TECHNOLOGY LIMITED | Private company limited by shares | Live |
| LONGHILL LIMITED | Private company limited by shares | Dissolved |
| LONGHILL COMPANY LIMITED | Private company limited by shares | Live |
| LONGHILL ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| LONGHILL ENTERPRISE LIMITED | Private company limited by shares | Live |
| LONGHILL INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| LONGHILL W INVESTMENT & CONSULTANCY LIMITED | Private company limited by shares | Live |
| LONGHIN LIMITED | Private company limited by shares | Live |
| LONGHIN DEVELOPMENT LIMITED | Private company limited by shares | Live |
| LONGHIN (H.K.) LIMITED | Private company limited by shares | Dissolved |
| LONGHIN INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| LONGHIN INTERNATIONAL (HOLDINGS) LIMITED | Private company limited by shares | Dissolved |