| OLEN DEFENCE LIMITED | Private company limited by shares | Live |
| OLEN (HK) GROUP LIMITED | | Live |
| HONGKONG OLEN NEW ENERGY CO., LIMITED | Private company limited by shares | Live |
| HK OLEN INT'L FURNITURE LIMITED | Private company limited by shares | Dissolved |
| OLEN PLUS LIMITED | Private company limited by shares | Live |
| OLENA LIMITED | Private company limited by shares | Dissolved |
| OLENA MANDRYK PHOTOGRAPHY LIMITED | | Live |
| OLENICE COMPANY LIMITED | Private company limited by shares | Dissolved |
| OLENSCON LIMITED | Private company limited by shares | Live |