| SINGMA LIMITED | Private company limited by shares | Live |
| SINGMA INT'L CO., LIMITED | Private company limited by shares | Live |
| SINGMA DELUXE HOLDING LIMITED | Private company limited by shares | Live |
| SINGMA ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| SINGMA INTERNATIONAL INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SINGMA INTRACO TRADING (H.K.) LIMITED | Private company limited by shares | Dissolved |
| SINGMAI TRADING LIMITED | | Live |
| SINGMAL CONTRACTORS LIMITED | Private company limited by shares | Dissolved |
| SINGMALAY COMPANY LIMITED | Private company limited by shares | Live |
| SINGMASTATE (H.K.) LIMITED | Private company limited by shares | Dissolved |