| S.T.C. COMPANY LIMITED | Private company limited by shares | Dissolved |
| STCA Investments Limited | Private company limited by shares | Live |
| Germany StCallan Group Limited | | Live |
| STCB NOMINEE LIMITED | Private company limited by shares | Live |
| STCC Limited | Private company limited by shares | Live |
| STCC Nominee Limited | Private company limited by shares | Live |
| STCD Nominee Limited | Private company limited by shares | Live |
| STCI CO., LIMITED | Private company limited by shares | Live |
| STCKKE SHOES AND CLOTHING DESIGN (HK) LIMITED | Private company limited by shares | Live |
| STCL LIMITED | Private company limited by shares | Live |
| STCOM INTERNATIONAL (HONG KONG) LIMITED | Private company limited by shares | Live |
| STCT Limited | Private company limited by shares | Live |
| STCube Pharma HK Limited | Private company limited by shares | Dissolved |
| STCY Koffee Limited | Private company limited by shares | Live |