| SHANGHAI OTOCASTLE INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| OTOCKY HOLIDAYS LIMITED | Private company limited by shares | Dissolved |
| Hermosa Otok Limited | Private company limited by shares | Dissolved |
| OTOKAMI Limited | Private company limited by shares | Live |
| OTOM COMPANY LIMITED | Private company limited by shares | Dissolved |
| Otomo Holding Limited | Private company limited by shares | Live |
| OTOMO TRANSPORT SYSTEM (HONG KONG) LIMITED | Private company limited by shares | Live |
| HK OTOMO INDUSTRY LIMITED | | Live |
| OTOMO TRADE LIMITED | Private company limited by shares | Live |
| GLORY OTONE TRADE LIMITED | | Live |
| FRANCE OTONEW COSMETICS GROUP COMPANY LIMITED | Private company limited by shares | Dissolved |
| OTONI LIMITED | Private company limited by shares | Dissolved |
| OtoNo Limited | | Live |
| OTONS INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| OTONTREND GROUP LIMITED | Private company limited by shares | Live |
| OTOO LIMITED | Private company limited by shares | Dissolved |
| Eroi Otoona Limited | Private company limited by shares | Dissolved |
| OTOP ELECTRONIC CO., LIMITED | Private company limited by shares | Live |
| HONG KONG OTOP LIGHTING CO., LIMITED | Private company limited by shares | Live |
| OTOP (JIYUXING) OPTOELECTRONIC CO., LIMITED | Private company limited by shares | Live |
| OTOP LED LIGHTING CO., LIMITED | Private company limited by shares | Live |
| OTOP TECH CO., LIMITED | Private company limited by shares | Live |
| SHENZHEN OTOP TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| OTOP TECHNOLOGY (HK) LIMITED | Private company limited by shares | Live |
| SHENZHEN OTOP TECHNOLOGY (HK) LIMITED | Private company limited by shares | Live |
| OTOP ELECTRICAL MANUFACTURE CO., LIMITED | Private company limited by shares | Live |
| Germany Otop Power Technology Limited | Private company limited by shares | Live |
| Otopa Trading Company Limited | | Live |
| Otopac Limited | Private company limited by shares | Live |
| GERMANY OTOPTEH PETROLEUM HOLDINGS LIMITED | Private company limited by shares | Live |
| Otoro Biotherapeutics (HK) Limited | Private company limited by shares | Live |
| Otoro Hong Kong Limited | | Live |
| Otoro Imaging Limited | | Live |
| Otoro Radiology Limited | Private company limited by shares | Live |
| OTOS COMPANY LIMITED | Private company limited by shares | Live |