| ETRON COMPANY LIMITED | Private company limited by shares | Dissolved |
| ETRON LIMITED | Private company limited by shares | Dissolved |
| Etron Automation Limited | | Live |
| Etron LCI Co., Limited | Private company limited by shares | Live |
| E-TRON IMPORT&EXPORT CO., LIMITED | Private company limited by shares | Live |
| ETRON INTERNATIONAL CO., LIMITED | Private company limited by shares | Dissolved |
| Etron Commercial Consultant Limited | Private company limited by shares | Live |
| ETRON CONSULTANTS LIMITED | Private company limited by shares | Live |
| ETRON ELECTRONIC LIMITED | Private company limited by shares | Live |
| E-TRON ELECTRONICS CO., LIMITED | Private company limited by shares | Live |
| ETRON ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| ETron Professional (HK) Limited | Private company limited by shares | Live |
| eTron Electronic Materials (Hong Kong) Co. Limited | Private company limited by shares | Live |
| ETRON INDUSTRIAL CORPORATION LIMITED | Private company limited by shares | Live |
| ETRON INDUSTRIAL TECHNOLOGY LIMITED | Private company limited by shares | Live |
| E-Tron Solution Limited | Private company limited by shares | Live |
| ETRON TECHNOLOGY LIMITED | Private company limited by shares | Live |
| E-TRON TECHNOLOGY CO., LIMITED | Private company limited by shares | Dissolved |
| Etron Technology (HK) Limited | Private company limited by shares | Live |
| ETRON INTERNATIONAL TRADING LIMITED | Private company limited by shares | Dissolved |
| ETRONASIA COMPANY LIMITED | Private company limited by shares | Dissolved |
| ETRONEX CO. LIMITED | Private company limited by shares | Live |
| ETRONIC LIMITED | Private company limited by shares | Dissolved |
| E-tronic HK Limited | Private company limited by shares | Live |
| e-Tronic Products Limited | Private company limited by shares | Dissolved |
| E-TRONIC TRADING LIMITED | Private company limited by shares | Dissolved |
| Hongkong E-tronicare Industrial Co., Limited | Private company limited by shares | Live |
| E-TRONIX TECHNOLOGY HONG KONG LIMITED | Private company limited by shares | Dissolved |
| ETRONIX MIDDLE EAST CO., LIMITED | Private company limited by shares | Live |
| ETRONIX TECHNOLOGY LIMITED | Private company limited by shares | Live |
| ETRONS SYSTEMS (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| Etronsing Electronic Limited | Private company limited by shares | Live |
| Etronta Limited | | Live |