| DAYUP LIMITED | Private company limited by shares | Live |
| Dayup Auto International Trade Co., Limited | | Live |
| DAYUP IP CO., LIMITED | Private company limited by shares | Live |
| Hong Kong Dayup Technology Co., Limited | Private company limited by shares | Live |
| DAYUP TECHNOLOGY CO., LIMITED | Private company limited by shares | Dissolved |
| Dayup Trading Co., Limited | Private company limited by shares | Live |
| Dayup Electronics Co., Limited | Private company limited by shares | Live |
| DAY-UP DEVELOP (FOOD) LIMITED | | Live |
| HONGKONG DAY-UP CO., LIMITED | Private company limited by shares | Live |
| DAYUP INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |