| OUYANG LIMITED | | Live |
| OUYANG BENTIAN LIMITED | Private company limited by shares | Dissolved |
| Ouyang Biotech Limited | | Live |
| HK OUYANG BAO ADVERTISING CO., LIMITED | Private company limited by shares | Dissolved |
| HK (SH) OUYANG MARKETING CONSULTANT CO., LIMITED | Private company limited by shares | Dissolved |
| CHINA OUYANG ENERGY LIMITED | Private company limited by shares | Live |
| WONG & OUYANG (CIVIL-STRUCTURAL ENGINEERING) LIMITED | Private company limited by shares | Live |
| OUYANG MEINI (SHENZHEN) FASHION LIMITED | Private company limited by shares | Dissolved |
| OUYANG INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| SHANGHAI OUYANG PUMP INDUSTRY (GROUP) LIMITED | Private company limited by shares | Live |
| WONG & OUYANG (CHINA PROJECTS) LIMITED | Private company limited by shares | Live |
| WONG & OUYANG (DESIGN) LIMITED | Private company limited by shares | Dissolved |
| WONG & OUYANG (HK) LIMITED | Private company limited by shares | Live |