| Kays Company Limited | Private company limited by shares | Live |
| Eric Kays Limited | Private company limited by shares | Live |
| KAYSAN LIMITED | Private company limited by shares | Dissolved |
| Kayselo International Jewelry Co., Limited | Private company limited by shares | Live |
| KAYSER LIMITED | Private company limited by shares | Live |
| Maison Eric Kayser Asie Limited | Private company limited by shares | Live |
| Kayser Prestige Limited | | Live |
| KAYSER TECHNIK LIMITED | Private company limited by shares | Live |
| KAYSERI ESTATES LIMITED | Private company limited by shares | Dissolved |
| QINGDAO KAYSHINE JEWELRY CO., LIMITED | Private company limited by shares | Live |
| KAYSHION LIMITED | Private company limited by shares | Live |
| KAYSIE CONCEPTS LIMITED | | Live |
| KAYSLITE ENTERPRISES LIMITED | Private company limited by shares | Live |
| KAYSMART INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| KAYSON LIMITED | Private company limited by shares | Dissolved |
| KAYSON LIMITED | Private company limited by shares | Dissolved |
| KAYSON LIMITED | Private company limited by shares | Live |
| KAYSON ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| KAYSON HOLDING LIMITED | Private company limited by shares | Dissolved |
| Kayson Investment Limited | Private company limited by shares | Dissolved |
| KAYSOURCE LIMITED | Private company limited by shares | Dissolved |
| KAYSTAR LIMITED | Private company limited by shares | Dissolved |
| KAYSTAR GROUP LIMITED | Private company limited by shares | Live |
| KAY-STAR TECHNOLOGY INDUSTRIAL LIMITED | Private company limited by shares | Live |
| KAYSTATION STUDIO LIMITED | Private company limited by shares | Live |
| Kayster Art Limited | Private company limited by shares | Live |
| KAYSTON LIMITED | Private company limited by shares | Dissolved |
| KAYSTON LIMITED | Private company limited by shares | Live |
| KAYSTON CORPORATION LIMITED | Private company limited by shares | Live |
| KAYSTON INVESTMENTS (ASIA) LIMITED | Private company limited by shares | Live |
| KAYSTONE DISTRIBUTING COMPANY LIMITED | Private company limited by shares | Dissolved |
| KAYSUN LIMITED | Private company limited by shares | Dissolved |
| KAYSURA LIMITED | Private company limited by shares | Live |
| KAYSVILLE LIMITED | Private company limited by shares | Dissolved |
| KAYSWEET LIMITED | Private company limited by shares | Dissolved |
| KAYSWEET LIMITED | Private company limited by shares | Dissolved |