| SH FILTRATION LIMITED | Private company limited by shares | Live |
| Sea Filtration Limited | Private company limited by shares | Dissolved |
| DMS FILTRATION LIMITED | Private company limited by shares | Live |
| YLJ FILTRATION LIMITED | Private company limited by shares | Live |
| WEC AIR FILTRATION LIMITED | | Live |
| DARPURE FILTRATION CO., LIMITED | | Live |
| DAVIDSON & SON FILTRATION COMPANY LIMITED | Private company limited by shares | Dissolved |
| Eaton Filtration Limited | Private company limited by shares | Dissolved |
| FULMAR FILTRATION LIMITED | Private company limited by shares | Dissolved |
| HongKong Landsun International Filtration System Co., Limited | Private company limited by shares | Live |
| KELSEN AIR FILTRATION SYSTEM INTERNATIONAL LIMITED | | Live |
| SEPSOL FILTRATION COMPANY LIMITED | Private company limited by shares | Dissolved |
| SEYMUS FILTRATION LIMITED | | Live |
| OEM FILTRATION SOLUTION COMPANY LIMITED | Private company limited by shares | Live |
| FILTRATION SOLUTIONS LIMITED | Private company limited by shares | Live |
| ARC FILTRATION SYSTEM LIMITED | Private company limited by shares | Live |
| D&C Filtration Systems Limited | Private company limited by shares | Live |
| ECOFINE FILTRATION TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| GERMANY BOSCH FILTRATION TECHNOLOGY INVESTMENT CO., LIMITED | Private company limited by shares | Live |
| XINXIANG YUQUAN FILTRATION CO., LIMITED | Private company limited by shares | Live |