| Welltron International Co., Limited | Private company limited by shares | Live |
| WELLTRON CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| WELLTRON ELECTRONICS LIMITED | Private company limited by shares | Live |
| WELLTRON ENERGY INTERNATIONAL LIMITED | Private company limited by shares | Live |
| WELLTRON ENERGY INTERNATIONAL LIMITED | Private company limited by shares | Live |
| Welltron Entertainment Limited | Private company limited by shares | Live |
| WELLTRON SCIENTIFIC (HONG KONG) CO. LIMITED | Private company limited by shares | Live |
| WELLTRON INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| WELLTRON TECHNOLOGY HK LIMITED | Private company limited by shares | Dissolved |
| WELLTRON ELECTRIC TRADING CO., LIMITED | Private company limited by shares | Live |
| WELLTRONIC COMPANY LIMITED | Private company limited by shares | Live |
| WELLTRONS TECHNOLOGY (H.K.) LIMITED | Private company limited by shares | Live |