| Powertop Industrial Technology Co., Limited | Private company limited by shares | Live |
| Germany Powertop Mechanical Manufacturing Co., Limited | Private company limited by shares | Live |
| POWER-TOP TRADING CO., LIMITED | Private company limited by shares | Live |
| POWERTOP ELECTRONICS (HK) CO., LIMITED | Private company limited by shares | Live |
| POWERTOP INDUSTRIAL (H.K.) LIMITED | Private company limited by shares | Dissolved |
| HongKong PowerTop Trade Limited | | Live |
| Powertop Technologies Co., Limited | Private company limited by shares | Live |