| TOPKEY COMPANY LIMITED | Private company limited by shares | Dissolved |
| TOPKEY LIMITED | Private company limited by shares | Dissolved |
| TOPKEY LIMITED | Private company limited by shares | Dissolved |
| TOPKEY (2000) LIMITED | Private company limited by shares | Dissolved |
| TOPKEY INVESTMENT GROUP (HK) HOLDING CO., LIMITED | Private company limited by shares | Live |
| TOPKEY DEVELOPMENT LIMITED | | Live |
| Topkey Trading Development Co., Limited | Private company limited by shares | Live |
| TOPKEY GROUP LIMITED | Private company limited by shares | Live |
| TOPKEY (H.K.) LIMITED | Private company limited by shares | Dissolved |
| TOPKEY (H.K.) LIMITED | Private company limited by shares | Dissolved |
| TOPKEY HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| HONG KONG TOPKEY INVESTMENT COMPANY LIMITED | Private company limited by shares | Live |
| HONG KONG TOPKEY LIMITED | Private company limited by shares | Live |
| HONG KONG TOPKEY TRADE LIMITED | Private company limited by shares | Live |
| TOPKEY INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| HK TopKey Industrial Limited | Private company limited by shares | Live |
| TOPKEY INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| TOPKEY INTERNATIONAL LIMITED | Private company limited by shares | Live |
| TOPKEY INTERNATIONAL HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| TOPKEY INTERNATIONAL INVESTMENT LIMITED | Private company limited by shares | Live |
| TOPKEY INTERNATIONAL TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| TOPKEY MANAGEMENT LIMITED | Private company limited by shares | Dissolved |
| TOPKEY TECHNOLOGIES LIMITED | Private company limited by shares | Dissolved |
| TOPKEY TECHNOLOGY LIMITED | Private company limited by shares | Live |
| TOPKEY TRADING LIMITED | Private company limited by shares | Dissolved |