| TOP-HIGH LIMITED | Private company limited by shares | Dissolved |
| HK TOPHIGH GROUP LIMITED | Private company limited by shares | Dissolved |
| TOPHIGH TECHNOLOGY STOCK LIMITED | Private company limited by shares | Dissolved |
| TOPHILL LIMITED | Private company limited by shares | Dissolved |
| TOPHILL-MOLD CO., LIMITED | Private company limited by shares | Live |
| TOPHIM LIMITED | Private company limited by shares | Live |
| TOPHIN DEVELOPMENT LIMITED | Private company limited by shares | Live |
| TOPHIN PROJECT MANAGEMENT AND CONSTRUCTION COMPANY LIMITED | Private company limited by shares | Dissolved |
| TOPHINE INDUSTRIAL GROUP LIMITED | Private company limited by shares | Live |
| TOPHINE INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| TOPHIT LIMITED | Private company limited by shares | Live |
| Tophit Quality Limited | Private company limited by shares | Live |
| Tophit Safety Limited | Private company limited by shares | Live |