| OUSI COSMETICS LIMITED | Private company limited by shares | Live |
| OUSI HOLDING LIMITED | Private company limited by shares | Live |
| GERMANY OUSICHEN INTERNATIONAL LIGHTING CO., LIMITED | Private company limited by shares | Live |
| OUSIDUN TECHNOLOGY LIMITED | | Live |
| GERMANY OUSILANG ELECTRIC LIMITED | Private company limited by shares | Dissolved |
| OUSILON INT'L TRADE LIMITED | Private company limited by shares | Live |
| OUSIMEI LIMITED | | Live |
| HK Ousinuo Technological Limited | Private company limited by shares | Live |
| HK OUSIPU LIGHTING LIMITED | Private company limited by shares | Live |
| HK OUSIPU PHOTOELECTRIC LIMITED | Private company limited by shares | Live |
| HK OUSITE LIMITED | Private company limited by shares | Live |