| OCEANUS LIMITED | Private company limited by shares | Dissolved |
| OCEANUS LIMITED | Private company limited by shares | Live |
| Oceanus HK Company Limited | Private company limited by shares | Live |
| OCEANUS LAB LIMITED | Private company limited by shares | Live |
| CMC Oceanus HK Limited | | Live |
| Oceanus Capital (Asia) Limited | Private company limited by shares | Live |
| Oceanus Business Limited | Private company limited by shares | Live |
| OCEANUS SUPPLY CHAIN LIMITED | Private company limited by shares | Live |
| OCEANUS CONSULTANCY LIMITED | Private company limited by shares | Live |
| Oceanus Digital Limited | | Live |
| OCEANUS ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| OCEANUS HOLDING LIMITED | Private company limited by shares | Dissolved |
| Oceanus Holding Limited | Private company limited by shares | Live |
| OCEANUS INVESTMENT COMPANY LIMITED | Private company limited by shares | Live |
| OCEANUS MARITIME COMPANY LIMITED | Private company limited by shares | Live |
| Oceanus Offshore Drilling Limited | Private company limited by shares | Live |
| Oceanus Shipping Limited | Private company limited by shares | Live |
| OCEANUS SHIPPING ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| Oceanus Strategic Limited | Private company limited by shares | Live |
| OCEANUS SYSTEMS LIMITED | Private company limited by shares | Live |
| OCEANUS TEXTILES LIMITED | Private company limited by shares | Live |
| OCEANUSGAL INTERNATIONAL TRADING CO., LIMITED | Private company limited by shares | Live |
| Oceanus-world Limited | Private company limited by shares | Live |