| Company Name | Type | Status |
|---|---|---|
| Hong Kong TianHuan Trading Co., Limited | Private company limited by shares | Live |
| H.K. TIANHUAN INT'L CO., LIMITED | Private company limited by shares | Dissolved |
| HONGKONG TIANHUAN EQUIPMENT GROUP LIMITED | Private company limited by shares | Live |
| TIANHUAN POWDER METALLURGY (HONG KONG) LIMITED | Private company limited by shares | Live |