| SMARTEC LIMITED | Private company limited by shares | Dissolved |
| SMARTEC LIMITED | Private company limited by shares | Live |
| SMARTEC LIMITED | | Live |
| SMARTEC (ASIA) LIMITED | Private company limited by shares | Live |
| SMARTEC BUILDING LIMITED | Private company limited by shares | Live |
| SMARTEC CHINA LIMITED | Private company limited by shares | Live |
| Smartec Technology Co., Limited | Private company limited by shares | Live |
| Smartec IoE Technology Co., Limited | Private company limited by shares | Live |
| SMARTEC TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| SMARTEC ELECTRONIC CORPORATION LIMITED | Private company limited by shares | Live |
| SMARTEC DEVELOPMENT LIMITED | Private company limited by shares | Live |
| SMARTEC RICH DEVELOPMENT LIMITED | Private company limited by shares | Live |
| SMARTEC TRADING & DEVELOPMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| Smartec Electronics Co., Limited | Private company limited by shares | Live |
| SMARTEC ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| SMARTEC MACHINERY & ENGINEERING INC. LIMITED | Private company limited by shares | Live |
| SMARTEC ENTERPRISE LIMITED | Private company limited by shares | Live |
| SMARTEC ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| SMARTEC ENTERPRISES LIMITED | Private company limited by shares | Live |
| Smartec Group Limited | Private company limited by shares | Live |
| Smartec (HK) Communication Co., Limited | Private company limited by shares | Live |
| SMARTEC (HK) ENGINEERING LIMITED | Private company limited by shares | Live |
| Smartec Trading (HK) Limited | Private company limited by shares | Live |
| SMARTEC HOLDINGS LIMITED | Private company limited by shares | Live |
| SMARTEC HONG KONG COMPANY LIMITED | Private company limited by shares | Dissolved |
| SMARTEC ENTERPRISE (HONGKONG) LIMITED | Private company limited by shares | Live |
| SMARTEC INVESTMENT (HONGKONG) COMPANY LIMITED | Private company limited by shares | Dissolved |
| SMARTEC INDUSTRIAL LIMITED | Private company limited by shares | Live |
| SMARTEC INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SMARTEC INTERNATIONAL GROUP LIMITED | Private company limited by shares | Dissolved |
| SMARTEC INTERNATIONAL (HK) LIMITED | Private company limited by shares | Live |
| SMARTEC INTERNATIONAL TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Smartec Intertrade Limited | Private company limited by shares | Live |
| SMARTEC INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SMARTEC PROPERTIES LIMITED | Private company limited by shares | Live |
| SMARTEC SOLUTION LIMITED | Private company limited by shares | Live |
| Smartec Hotel Supplies Limited | Private company limited by shares | Live |
| SMARTEC TECHNOLOGIES LIMITED | Private company limited by shares | Dissolved |
| SMARTEC TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| SMARTEC TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| SMARTECH LIMITED | Private company limited by shares | Dissolved |
| SMARTECH LIMITED | Private company limited by shares | Dissolved |
| SMARTECH R & D LIMITED | Private company limited by shares | Live |
| Smartech Limited | Private company limited by shares | Live |
| IO Smartech Limited | Private company limited by shares | Live |
| Smartech Adventure Limited | Private company limited by shares | Live |
| SMARTECH APPLIANCES COMPANY LIMITED | Private company limited by shares | Live |
| SMARTECH (ASIA) COMPANY LIMITED | Private company limited by shares | Dissolved |
| SMARTECH (ASIA) COMPANY LIMITED | Private company limited by shares | Dissolved |
| SMARTECH ASIA LIMITED | Private company limited by shares | Live |
| Smartech Solution (Asia) Limited | Private company limited by shares | Live |
| SMARTECH AUTOMATION LIMITED | Private company limited by shares | Live |
| Concord Smartech Company Limited | Private company limited by shares | Live |
| SMARTECH DISPLAY LIMITED | Private company limited by shares | Live |
| SEA DRAGON SMARTECH COMPANY LIMITED | Private company limited by shares | Live |
| HK Echo Smartech Limited | Private company limited by shares | Live |
| SMARTECH ENTERPRISE COMPANY LIMITED | Private company limited by shares | Live |
| SMARTECH HI-TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| SMARTECH INVESTMENT LIMITED | Private company limited by shares | Live |
| SMARTECH MODULE LIMITED | Private company limited by shares | Live |
| SMARTECH SOLUTIONS LIMITED | Private company limited by shares | Dissolved |
| SMARTECH SOLUTIONS LIMITED | Private company limited by shares | Live |
| Smartech Solutions Limited | Private company limited by shares | Live |
| SMARTECH SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| Topon Smartech Limited | Private company limited by shares | Live |
| SMARTECO LIMITED | Private company limited by shares | Dissolved |