| KAST LIMITED | Private company limited by shares | Dissolved |
| KAST LIMITED | Private company limited by shares | Live |
| KAST ASSOCIATES LIMITED | Private company limited by shares | Live |
| KAST CONSULTANCY LIMITED | Private company limited by shares | Dissolved |
| KAST EXPORTS LIMITED | Private company limited by shares | Dissolved |
| QUANZHOU KAST TOURIST GOODS LIMITED | Private company limited by shares | Live |
| Kast London Hong Kong Limited | | Live |
| KAST PHARM INTERNATIONAL CO., LIMITED | Private company limited by shares | Live |
| FRANCE KAST GROUP WINE STOCK LIMITED | Private company limited by shares | Dissolved |
| KAST WORLD LIMITED | Private company limited by shares | Live |
| KASTA PRODUCTS LIMITED | Private company limited by shares | Dissolved |
| KASTA TRADING LIMITED | Private company limited by shares | Live |
| Kastal Company Limited | Private company limited by shares | Live |
| KASTAL INTERNATIONAL LIMITED | Private company limited by shares | Live |
| KASTALL CENTURY TRADING LIMITED | Private company limited by shares | Dissolved |
| KASTAN-STANKA LIMITED | Private company limited by shares | Dissolved |
| KASTECH LIMITED | Private company limited by shares | Dissolved |
| KASTECH DEVELOPMENT LIMITED | Private company limited by shares | Live |
| KASTECH INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| HK KASTEL LIMITED | Private company limited by shares | Live |
| KASTELL LIMITED | Private company limited by shares | Dissolved |
| KASTHAMANDAP LIMITED | Private company limited by shares | Live |
| KASTHAMANDAP FINANCE LIMITED | Private company limited by shares | Live |
| KASTIN ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| Kastinton Limited | Private company limited by shares | Live |
| KASTKAD LIMITED | Private company limited by shares | Live |
| Kastle Limited | Private company limited by shares | Live |
| ELLIOT & KASTLE HK LIMITED | Private company limited by shares | Dissolved |
| KASTLE MANUFACTURING COMPANY LIMITED | Private company limited by shares | Live |
| KASTLE TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Kastler Innovation Limited | Private company limited by shares | Live |
| KASTNER LIMITED | Private company limited by shares | Dissolved |
| KASTON LIMITED | Private company limited by shares | Live |
| KASTON ELECTRONICS LIMITED | Private company limited by shares | Live |
| KASTON ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| USA KASTON OIL ENVIRONMENT PROTECTION SCI-TECH DEVELOP LIMITED | Private company limited by shares | Dissolved |
| KASTON (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| KASTON INDUSTRIAL CO., LIMITED | Private company limited by shares | Live |
| KASTON INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| KOREA KASTON PHOTOLOGY CO., LIMITED | Private company limited by shares | Live |
| KASTON PROPERTIES LIMITED | Private company limited by shares | Dissolved |
| KASTON TRADING LIMITED | Private company limited by shares | Dissolved |
| KASTONE LIMITED | Private company limited by shares | Live |
| KASTOR ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| KASTRON INVESTMENT LIMITED | Private company limited by shares | Dissolved |