| NEW HIYA CO., LIMITED | Private company limited by shares | Live |
| HIYA COVER AND BAG LIMITED | Private company limited by shares | Live |
| HIYA GROUP LIMITED | Private company limited by shares | Live |
| HIYA Technology Company Limited | Private company limited by shares | Live |
| HIYA TRADING COMPANY LIMITED | Private company limited by shares | Live |
| HIYAMA HKG LIMITED | Private company limited by shares | Live |
| HIYANAN COMPANY LIMITED | Private company limited by shares | Dissolved |
| Hongkong HiYang Printing Limited | Private company limited by shares | Live |
| Hongkong Hiyang Trade Limited | Private company limited by shares | Live |
| HK HIYANG INTERNATIONAL TRADE CO., LIMITED | Private company limited by shares | Live |
| HIYANG HUNTING PRODUCTS COMPANY LIMITED | Private company limited by shares | Live |
| HIYASU INTERNATIONAL BUSINESS CO., LIMITED | Private company limited by shares | Live |
| HIYAURATE LIMITED | Private company limited by shares | Dissolved |