| H-YI INTERNATIONAL LIMITED | | Live |
| HYIAS FILM PRODUCTIONS LIMITED | Private company limited by shares | Dissolved |
| HYIC ELECTRONICS (HK) CO., LIMITED | Private company limited by shares | Live |
| HYIDA LIMITED | Private company limited by shares | Live |
| HYIH LIFUNG Limited | Private company limited by shares | Live |
| H.YIN. LIMITED | Private company limited by shares | Live |
| HYING SHIPPING CO., LIMITED | Private company limited by shares | Live |
| Hying Consulting Limited | | Live |
| Fujian Hying Industry Limited | | Live |
| HYING TRADE LIMITED | | Live |
| HYINH LIMITED | Private company limited by shares | Live |
| HY-INTECH (ASIA) LIMITED | Private company limited by shares | Live |
| Hyirox Limited | Private company limited by shares | Live |
| Hyitech Technology Co., Limited | Private company limited by shares | Live |
| H.YIU LIMITED | Private company limited by shares | Live |