| WINTAC LIMITED | Private company limited by shares | Live |
| Create Wintac Limited | Private company limited by shares | Live |
| WINTAC ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| WINTAC ENTERPRISES LIMITED | Private company limited by shares | Live |
| WINTAC GLOBAL LIMITED | Private company limited by shares | Dissolved |
| WINTAC (HONG KONG) LIMITED | Private company limited by shares | Live |
| WINTAC INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| WINTAC TRADING LIMITED | Private company limited by shares | Dissolved |
| WINTACK LIMITED | Private company limited by shares | Live |
| WINTACK ENTERPRISES LIMITED | Private company limited by shares | Live |
| WINTACS COMPANY LIMITED | Private company limited by shares | Dissolved |
| WINTACT LIMITED | Private company limited by shares | Dissolved |
| WINTACT INVESTMENTS LIMITED | Private company limited by shares | Dissolved |