| TESI LIMITED | Private company limited by shares | Dissolved |
| TESI INVESTMENT LIMITED | Private company limited by shares | Live |
| TESICTRADE TELECOMS INTERNATIONAL (H.K.) LIMITED | Private company limited by shares | Dissolved |
| TESILA SUPPLY CHAIN CO., LIMITED | Private company limited by shares | Live |
| TESILANG (H.K) FASHION CO., LIMITED | Private company limited by shares | Dissolved |
| SHENZHEN TESIN ELECTRONIC CO., LIMITED | Private company limited by shares | Live |
| TESIN HARDWARE CO., LIMITED | Private company limited by shares | Live |
| TESING TRADE LIMITED | | Live |
| NANTONG TESIRO SPORTS CO., LIMITED | Private company limited by shares | Live |
| Tesitai Industrial Co., Limited | Private company limited by shares | Live |
| TESIWAY (HK) INDUSTRY LIMITED | Private company limited by shares | Live |
| SHENZHEN TESIYI TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |