| AMSTAR LIMITED | Private company limited by shares | Dissolved |
| AMSTAR LIMITED | Private company limited by shares | Dissolved |
| AMSTAR BUSINESS COMPANY LIMITED | Private company limited by shares | Dissolved |
| AMSTAR TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| AMSTAR DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| AMSTAR ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| Amstar Group Limited | Private company limited by shares | Live |
| AMSTAR HOLDINGS LIMITED | Private company limited by shares | Live |
| HONGKONG AMSTAR INDUSTRIAL LIMITED | Private company limited by shares | Live |
| AMSTAR INTERNATIONAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| AMSTAR INTERNATIONAL HOLDINGS LIMITED | Private company limited by shares | Live |
| AMSTAR TECHNO PARK INTERNATIONAL LIMITED | Private company limited by shares | Live |
| AMSTAR INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| AMSTAR TRADING LIMITED | Private company limited by shares | Dissolved |
| AMSTAR VENTURES LIMITED | Private company limited by shares | Dissolved |