| KO HIEN COMPANY LIMITED | Private company limited by shares | Dissolved |
| CHUA HIEN HO COMPANY LIMITED | Private company limited by shares | Dissolved |
| HIEN TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| HIEN LEE CONSTRUCTION CO., LIMITED | Private company limited by shares | Live |
| Hien Lee Development Group Limited | | Live |
| Hien Lee Development Holdings Limited | | Live |
| Hien Lee Investment & Development Limited | | Live |
| HIEN LEE ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| HIEN TUNG F.S. ENGINEERING LIMITED | Private company limited by shares | Live |
| Hien Lee Investment (HK) Company Limited | | Live |
| CONG TY TNHH HIEN HUNG CO., LIMITED | Private company limited by shares | Live |
| Hien Lee Interior Contracting Co., Limited | Private company limited by shares | Live |
| Hien go PR International (HongKong) Co., Limited | Private company limited by shares | Live |
| HIEN INTERNATIONAL (HONGKONG) LIMITED | Private company limited by shares | Live |
| HI-EN LED LIGHTING LIMITED | Private company limited by shares | Dissolved |
| KAY HIEN NOMINEES LIMITED | Private company limited by shares | Dissolved |
| HIEN LEE REAL ESTATE DEVELOPMENT CO., LIMITED | Private company limited by shares | Live |
| HIEN TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| YOENG NAM HIEN & COMPANY, LIMITED | Private company limited by shares | Dissolved |
| YOENG NAM HIEN & COMPANY LIMITED | Private company limited by shares | Dissolved |
| HIENAN LIMITED | Private company limited by shares | Dissolved |
| HIENDTOWER LIMITED | Private company limited by shares | Live |