| TONGTA ELECTRONICS INC. LIMITED | Private company limited by shares | Dissolved |
| TONGTA INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| GUANGDONG FOSHAN TONGTAI CERAMICS LIMITED | Private company limited by shares | Dissolved |
| TONGTAI CHINA LIMITED | Private company limited by shares | Live |
| TONGTAI IMP&EXP CO., LIMITED | Private company limited by shares | Live |
| HK TONGTAI TRADE CO., LIMITED | Private company limited by shares | Live |
| QINGDAO TONGTAI TYRE CO., LIMITED | Private company limited by shares | Live |
| HK TONGTAI MACHINERY ELECTRONIC LIMITED | Private company limited by shares | Dissolved |
| Tongtai Etrade Limited | Private company limited by shares | Live |
| Tongtai Holding Limited | Private company limited by shares | Live |
| Tongtai Technology Limited | | Live |
| TONGTAI TRADE LIMITED | Private company limited by shares | Dissolved |
| Tongtai Trading HK Limited | Private company limited by shares | Live |
| TONGTAIDA TECHNOLOGY LIMITED | Private company limited by shares | Live |
| TONGTAIHE (H.K.) CO., LIMITED | Private company limited by shares | Live |
| TONGTAIHE LOGISTICS (H.K.) CO., LIMITED | Private company limited by shares | Live |
| Tongtaihuaxin Trading Limited | Private company limited by shares | Live |
| Tongtaihuaxin Trading Limited | Private company limited by shares | Live |
| TONGTAK TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |