| Company Name | Type | Status |
|---|---|---|
| ON-IN ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| ON&IN PHARMACY LIMITED | Live | |
| ONIN PROPERTIES LIMITED | Private company limited by shares | Dissolved |
| ONING LIGHTING CO., LIMITED | Private company limited by shares | Live |
| ONING DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| HONGKONG ONING INTERNATIONAL TRADE CO., LIMITED | Private company limited by shares | Live |
| ONING INTERNATIONAL INDUSTRY CO., LIMITED | Private company limited by shares | Live |