| QUINTET LIMITED | Private company limited by shares | Dissolved |
| QUINTET CONSULTANCY LIMITED | Private company limited by shares | Dissolved |
| QUINTET ELECTRONICS LIMITED | Private company limited by shares | Dissolved |
| QUINTET ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| Fortune Quintet Investment Company Limited | Private company limited by shares | Live |
| QUINTET MANAGEMENT (HK) LIMITED | Private company limited by shares | Live |
| QUINTET MANUFACTORY LIMITED | Private company limited by shares | Dissolved |
| QUINTET TANNERY LIMITED | Private company limited by shares | Dissolved |