| Company Name | Type | Status |
|---|---|---|
| HSTC Limited | Private company limited by shares | Live |
| HSTC SZ&HK ALUMNI ASSOCIATION CO., LIMITED | Private company limited by shares | Live |
| HSTC Global AMHK Limited | Private company limited by shares | Live |
| HSTC GROUP LIMITED | Private company limited by shares | Dissolved |
| HSTC Hong Kong Limited | Live | |
| HSTC SOURCING MATERIAL LIMITED | Private company limited by shares | Live |