| Auco Development Limited | Private company limited by shares | Live |
| AUCO INDUSTRIES CO., LIMITED | Private company limited by shares | Live |
| Aucoc Mold & Plastic Products (HK) Co., Limited | Private company limited by shares | Live |
| AUCOM COMPANY LIMITED | Private company limited by shares | Dissolved |
| Aucome International Limited | Private company limited by shares | Live |
| AUCOPARTS ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| AUCOUT AUTOMATION (HONG KONG) CO., LIMITED | Private company limited by shares | Live |
| AUCOX SPORTS GOODS CO., LIMITED | Private company limited by shares | Dissolved |