| ON TAT BAKELITE ELECTRIC WORKS (CHINA) LIMITED | Private company limited by shares | Dissolved |
| ON TAT BAKELITE ELECTRIC WORKS LIMITED | Private company limited by shares | Live |
| HING LOONG BAKELITE FACTORY LIMITED | Private company limited by shares | Dissolved |
| TAI FAT BAKELITE MANUFACTORY LIMITED | Private company limited by shares | Live |
| WAH TAT BAKELITE AND METAL WORKS LIMITED | Private company limited by shares | Dissolved |
| HOPEWELL BAKELITE MOULDING CO. LIMITED | Private company limited by shares | Dissolved |
| BAKELITE UNITED TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| CENTURY BAKELITE WORKS, LIMITED | Private company limited by shares | Dissolved |