| STSA INTERNATIONAL EDUCATION CONSULTING LIMITED | Private company limited by shares | Live |
| TAI WAN ST.SARA INT'L HAIRDRESSING GROUP LIMITED | Private company limited by shares | Dissolved |
| STSERVER LIMITED | Private company limited by shares | Live |
| STSI METAL LIMITED | Private company limited by shares | Live |
| STSM LIMITED | Private company limited by shares | Live |
| STSNDARD WEALTH (HK) CORPORATION LIMITED | Private company limited by shares | Live |
| STSQC EXPORT AGENT AND PROCUREMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| STSS Logistic Service Limited | Private company limited by shares | Live |
| STS-SY TECHNOLOGY (HK) CO., LIMITED | Private company limited by shares | Live |
| ST.STONE INTERNATIONAL (HK) JEWELRY SHARES CO., LIMITED | Private company limited by shares | Live |
| ST.SUN JEWELRY COMPANY LIMITED | Private company limited by shares | Live |