| HK TONGC TRADE CO., LIMITED | Private company limited by shares | Live |
| TAIWAN YIXUAN TONGCAI EDUCATION GROUP LIMITED | Private company limited by shares | Live |
| QINGDAO TONGCAI TIRE LIMITED | Private company limited by shares | Live |
| TONGCF LIMITED | | Live |
| TongChang Trading Co., Limited | Private company limited by shares | Live |
| NINGBO TONGCHANG INDUSTRY & COMMERCE CO., LIMITED | Private company limited by shares | Dissolved |
| TONGCHANG ELECTRONIC LIMITED | Private company limited by shares | Live |
| HK TONGCHANG NEW ENERGY INVESTMENT LIMITED | Private company limited by shares | Live |
| TONGCHANG (H.K.) CO., LIMITED | Private company limited by shares | Live |
| TONGCHANG TRADING (HK) LIMITED | Private company limited by shares | Dissolved |
| HK TONGCHANG INVESTMENT LIMITED | Private company limited by shares | Live |
| TONGCHANGFA TRADE LIMITED | Private company limited by shares | Live |
| TONG-CHAO LIMITED | Private company limited by shares | Live |
| CHINA TONGCHENG INT'L GROUP LIMITED | Private company limited by shares | Live |
| CHINA TONGCHENG LOAN GROUP LIMITED | Private company limited by shares | Live |
| TONGCHENG SHIPPING COMPANY LIMITED | Private company limited by shares | Live |
| HK TONGCHENG STOCK LIMITED | Private company limited by shares | Dissolved |
| Shiyu Tongchi Co., Limited | | Live |
| Tongchi Trade Co., Limited | Private company limited by shares | Live |
| TONGCHUANG CO., LIMITED | Private company limited by shares | Live |
| JIUZHOU TONGCHUANG CO., LIMITED | Private company limited by shares | Live |
| Tongchuang Plastic Arts & Crafts Co., Limited | Private company limited by shares | Live |
| Shengyang Tongchuang (HK) Cross Border E-Commerce Limited | | Live |
| HK ZIJIN TONGCHUANG ADVANCED DESIGN LIMITED | Private company limited by shares | Dissolved |
| HK TONGCHUANG E-COMMERCE LIMITED | Private company limited by shares | Live |
| TONGCHUANG TECHNOLOGY LIMITED | Private company limited by shares | Live |
| TONGCHUANG TRADING LIMITED | Private company limited by shares | Live |
| HK TONGCHUANG TRADING INVESTMENT LIMITED | Private company limited by shares | Live |
| Tongchuanghui Limited | | Live |
| Hong Kong TongChuangJia Technology Co., Limited | Private company limited by shares | Live |
| TONGCHUANGXIN ENGINEERING TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| ChengDu TongChuangYuan Pharmaceutical Co., Limited | | Live |
| TongChuenChueng (HK) TRADING CO., LIMITED | Private company limited by shares | Live |
| HONGKONG TONGCI ELECTRON LIMITED | Private company limited by shares | Live |
| TONGCOI LIMITED | Private company limited by shares | Live |