| TOPGRADE LIMITED | Private company limited by shares | Live |
| TOPGRADE ENGINEERING LIMITED | | Live |
| TOPGRADE GROUP LIMITED | Private company limited by shares | Live |
| TOPGRADE INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| TOPGRADE INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| HK TOPGRADE INDUSTRY LIMITED | Private company limited by shares | Dissolved |
| SHENZHEN TOPGRADE LED LIGHTING LIMITED | Private company limited by shares | Live |
| TOP-GRADE MANUFACTORY LIMITED | Private company limited by shares | Dissolved |
| TOPGRADE METAL MANUFACTURING CO LIMITED | Private company limited by shares | Dissolved |
| TOPGRADE SHIPPING LIMITED | Private company limited by shares | Dissolved |
| TOPGRADE TECHNOLOGIES LIMITED | Private company limited by shares | Dissolved |
| TOPGRADE TRADING LIMITED | Private company limited by shares | Dissolved |