| RAMM LIGHTING (H.K.) LIMITED | Private company limited by shares | Dissolved |
| RAMM TECHNOLOGY (HK) CO., LIMITED | Private company limited by shares | Live |
| RAMMARK LIMITED | Private company limited by shares | Dissolved |
| RAMMAX LIMITED | Private company limited by shares | Dissolved |
| RAMMAX INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| RAMMFX LIMITED | Private company limited by shares | Live |
| Rammichef Kitchenware Company Limited | Private company limited by shares | Live |
| RAMMON CONSTRUCTION LIMITED | Private company limited by shares | Dissolved |
| RAMMON ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| RAMMON TSING MOK (HK) LIMITED | Private company limited by shares | Dissolved |
| RAMMON ENGINEERING INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| RAMMON RENOVATION LIMITED | Private company limited by shares | Live |
| RAMMSTEIN LUGGAGE LIMITED | Private company limited by shares | Live |
| RAMMY LIMITED | Private company limited by shares | Live |
| RAMMY INVESTMENT LIMITED | Private company limited by shares | Dissolved |