| KAIRUI LIMITED | Private company limited by shares | Live |
| Redstar Kairui HK Limited | Private company limited by shares | Dissolved |
| Xonk Kairui Limited | | Live |
| Kairuida Limited | | Live |
| KAIRUIDE GROUP LIMITED | Private company limited by shares | Live |
| KAIRUIDE INDUSTRIAL LIMITED | Private company limited by shares | Live |
| KAIRUIDE INVESTMENT LIMITED | Private company limited by shares | Live |
| HK KAIRUIDI LIMITED | Private company limited by shares | Live |
| HK KAIRUIFU (INT'L) BIOLOGICAL TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| HONGKONG KAIRUIJIA INTERNATIONAL LIMITED | Private company limited by shares | Live |
| KAIRUIKE MACHINE.EQUIPMENT LIMITED | Private company limited by shares | Dissolved |
| KAIRUIXIN LIMITED | Private company limited by shares | Live |
| KaiRuiXin Consultancy Limited | Private company limited by shares | Dissolved |
| KAIRUIXIN (H.K.) LIMITED | Private company limited by shares | Dissolved |
| KAIRUIYING TRADING LIMITED | | Live |
| KAIRUIYOU TRADING CO., LIMITED | Private company limited by shares | Live |