| Company Name | Type | Status |
|---|---|---|
| OTEC LIMITED | Private company limited by shares | Live |
| OTECH COMPANY LIMITED | Private company limited by shares | Dissolved |
| O-TECH LIMITED | Private company limited by shares | Dissolved |
| O-TECH LIMITED | Private company limited by shares | Live |
| Otechku Limited | Live | |
| OTECO ASIA LIMITED | Private company limited by shares | Live |
| Shenzhen Oteco Technology Co., Limited | Private company limited by shares | Live |