| JS OULONG LIMITED | Private company limited by shares | Dissolved |
| GERMANY OULONG CHEMICALS GROUP (H.K) LIMITED | Private company limited by shares | Dissolved |
| C&G OULOPHOLITE INT'L GROUP LIMITED | Private company limited by shares | Live |
| OULS & LU LIMITED | Private company limited by shares | Live |
| OULTON COMPANY LIMITED | Private company limited by shares | Dissolved |
| OULU CONSULTANCY LIMITED | | Live |
| OULUN INT'L TECH ENERGY-SAVING BUILDING GROUP (HK) LIMITED | Private company limited by shares | Live |
| OULUN BAIKE INT'L GROUP (HK) DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| HK OULUN FASHION SHOES AND CLOTHING GROUP LIMITED | Private company limited by shares | Dissolved |
| OULUN APPLIANCES (HONG KONG) COMPANY LIMITED | Private company limited by shares | Dissolved |
| HONG KONG OULUN DOORS & WINDOWS ACCESSORIES CO., LIMITED | Private company limited by shares | Live |
| WEIYA OULUN GROUP (ITALY) GLOBAL CO., LIMITED | Private company limited by shares | Live |
| OULUO INTERNATIONAL GROUP (CHINA) LIMITED | Private company limited by shares | Live |
| HONG KONG OULUO BA (INTERNATIONAL) COSMETICS CO., LIMITED | Private company limited by shares | Dissolved |
| OULUO INTERNATIONAL TRADE LIMITED | Private company limited by shares | Live |
| ITALY OULUOHUA LIMITED | Private company limited by shares | Dissolved |
| HK OULUOYA JEWELRY INT'L GROUP LIMITED | Private company limited by shares | Live |
| OU-LU-YA TRADING LIMITED | Private company limited by shares | Live |
| MATRIX OULY INTERNATIONAL CO., LIMITED | Private company limited by shares | Live |
| OULY ELECTRONIC GROUP (HK) LIMITED | Private company limited by shares | Dissolved |
| ZHEJIANG OULY INTERNATIONAL TRADE CO., LIMITED | Private company limited by shares | Live |
| OULY INTERNATIONAL TRADING CO., LIMITED | Private company limited by shares | Live |