| HIGHTIDE TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| HIGHTIDE DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| HIGHTIDE (HK) CO., LIMITED | Private company limited by shares | Live |
| HighTide Therapeutics (Hong Kong) Limited | Private company limited by shares | Live |
| HIGHTIDE INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| HIGHTIDE INTERNATIONAL DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| HIGHTIDE INTERNATIONAL (HK) LIMITED | Private company limited by shares | Live |
| HIGHTIDE TRANSPORTATION COMPANY LIMITED | Private company limited by shares | Dissolved |