| OPUS INTERNATIONAL TRADE LIMITED | Private company limited by shares | Live |
| Opus Trading Limited | Private company limited by shares | Dissolved |
| OPUS TRADING CO., LIMITED | Private company limited by shares | Live |
| OPUS GENERAL TRADING LIMITED | | Live |
| OPUS TRADING INTERNATIONAL LIMITED | Private company limited by shares | Live |
| OPUS INTERNATIONAL TRADING COMPANY LIMITED | Private company limited by shares | Live |
| OPUS TRAVEL COMPANY LIMITED | Private company limited by shares | Live |
| OpuSafe Limited | Private company limited by shares | Live |
| OPUSAN ENTERPRISE CO., LIMITED | Private company limited by shares | Dissolved |
| OPUSC TRADING COMPANY LIMITED | Private company limited by shares | Live |
| OpusChin Limited | Private company limited by shares | Dissolved |
| OPUSCHINA GROUP LIMITED | | Live |
| OPUSMAGNUM ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| OPUSONE TECHNOLOGIES (ASIA) LIMITED | Private company limited by shares | Dissolved |
| OPUSSOME TRADING CO., LIMITED | Private company limited by shares | Live |