| Ali Oli (OPC) Limited | Private company limited by shares | Live |
| ANG Lifesciences (OPC) Pvt. Limited | Private company limited by shares | Live |
| OPCA Limited | Private company limited by shares | Live |
| OPCO LIMITED | Private company limited by shares | Dissolved |
| COB OpCo Limited | | Live |
| OPCOM COMPANY LIMITED | Private company limited by shares | Dissolved |
| OPCOMM LIMITED | | Live |
| OPCON LIMITED | Private company limited by shares | Dissolved |
| Opconsult Limited | Private company limited by shares | Live |
| OPCSUN TECHNOLOGY (HK) CO., LIMITED | Private company limited by shares | Live |
| OPCX Engineering Limited | | Live |