| Company Name | Type | Status |
|---|---|---|
| SHUI HING WINDING CROWN MANUFACTORY LIMITED | Private company limited by shares | Live |
| WIN-DING TECHNOLOGY LIMITED | Private company limited by shares | Live |
| TUNG-JUNG WINDING BOBBIONS COMPANY LIMITED | Private company limited by shares | Live |
| HI-TECH WINDINGS LIMITED | Private company limited by shares | Dissolved |