| Company Name | Type | Status |
|---|---|---|
| WATEC LIMITED | Private company limited by shares | Live |
| WATEC FLUID HANDLING SYSTEMS CO., LIMITED | Private company limited by shares | Live |
| Rock Watech Engineering Co., Limited | Live | |
| Watech (Hong Kong) Limited | Private company limited by shares | Dissolved |
| WATECH WASTEWATER ENGINEERING CO. LIMITED | Private company limited by shares | Dissolved |
| WATECHES DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |