| 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 |