| Onon Agency Limited | Private company limited by shares | Live |
| Onon Dining Management Limited | Private company limited by shares | Live |
| OnOn Holding Limited | | Live |
| ONON ONLINE INTERNET (HONG KONG) LIMITED | Private company limited by shares | Live |
| OnOn Shipping Hong Kong Limited | Private company limited by shares | Dissolved |
| ONON hotpotland Limited | Private company limited by shares | Live |
| ONON TECHNOLOGIES COMPANY LIMITED | Private company limited by shares | Dissolved |
| ON&ON TRADING LIMITED | Private company limited by shares | Live |
| HK ON-ON DOOR TRADING GROUP LIMITED | Private company limited by shares | Dissolved |