| Company Name | Type | Status |
|---|---|---|
| HTSC Limited | Private company limited by shares | Live |
| HTSCG Limited | Private company limited by shares | Live |
| HT-SEIKO (HK) CO., LIMITED | Private company limited by shares | Live |
| HONG KONG HTSH TRADING LIMITED | Private company limited by shares | Dissolved |
| HTSP INTERNATIONAL LIMITED | Live | |
| SHENZHEN HTSS INDUSTRY CO., LIMITED | Private company limited by shares | Live |
| HTSS INDUSTRY LIMITED | Private company limited by shares | Live |
| HK HTSY INTERNATIONAL GROUP LIMITED | Private company limited by shares | Dissolved |