| A-Gas Environmental Services Hongkong Limited | Private company limited by shares | Live |
| AGAS (HONG KONG) LIMITED | Private company limited by shares | Live |
| AGAS INTERNATIONAL INVESTMENT COMPANY LIMITED | | Live |
| AGA'S INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| BK AGAS PERSONNEL SERVICES LIMITED | Private company limited by shares | Live |
| AGASON ENTERPRISES (H.K.) LIMITED | Private company limited by shares | Dissolved |
| AGASSI INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| AGASSIA COMPANY LIMITED | Private company limited by shares | Live |
| AGASSIA (CHINA) COMPANY LIMITED | Private company limited by shares | Dissolved |
| AGASTREET LIMITED | Private company limited by shares | Live |