| LEADER FILTER & ACCESSORIES MANUFACTURING CO., LIMITED | Private company limited by shares | Live |
| Huachang Filter Manufacturing(Hong Kong) Limited | Private company limited by shares | Live |
| CLOUD (SHENZHEN) FILTER MATERIAL LIMITED | Private company limited by shares | Live |
| TODA FILTER MEDIA IND LIMITED | Private company limited by shares | Live |
| WESH FILTER MEDIA LIMITED | Private company limited by shares | Dissolved |
| KENTEEN FILTER MFY. LIMITED | Private company limited by shares | Live |
| Nano Filter Limited | Private company limited by shares | Live |
| No Filter Productions Limited | Private company limited by shares | Live |
| HK Puton Filter Limited | Private company limited by shares | Live |
| FILTER SAFE HK LIMITED | Private company limited by shares | Live |
| SELWIDE FILTER LIMITED | Private company limited by shares | Dissolved |
| SHANGHAI DIMAN FILTER CO., LIMITED | Private company limited by shares | Live |
| SHANGHAI KAITUOZHE FILTER CO., LIMITED | Private company limited by shares | Live |
| SHANGHAI JIEERSHUN FILTER LIMITED | Private company limited by shares | Live |
| SHANGHAI JIEMEIJIA FILTER LIMITED | Private company limited by shares | Live |
| SHANGHAI JIUNUO FILTER LIMITED | Private company limited by shares | Live |
| SHANGHAI XINHE FILTER LIMITED | Private company limited by shares | Live |
| SOCORE FILTER LIMITED | Private company limited by shares | Dissolved |
| China Filter Tech Limited | Private company limited by shares | Live |
| NS FILTER TECHNOLOGY LIMITED | Private company limited by shares | Live |
| HANKE FILTER TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| GERMANY NAIMAO FILTER TECHNOLOGY LIMITED | Private company limited by shares | Live |
| UNIVERSAL FILTER COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL AIR FILTER (HONG KONG) LIMITED | Private company limited by shares | Live |
| America F.L.T Filter Water Systems Limited | Private company limited by shares | Live |
| ERIC WIRE MESH FILTER CO., LIMITED | Private company limited by shares | Live |
| WISH FILTER TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| WOWIDE FILTER LIMITED | Private company limited by shares | Dissolved |
| GERMANY ZSEN FILTER INTERNATIONAL GROUP LIMITED | Private company limited by shares | Live |
| FILTERED SKIN LIMITED | | Live |
| FILTERFRESH OF THE PACIFIC LIMITED | Private company limited by shares | Dissolved |
| SUN Filtering Technology Co. Limited | Private company limited by shares | Dissolved |
| Filter-S Limited | Private company limited by shares | Live |
| TENINE FILTERS COMPANY LIMITED | Private company limited by shares | Live |
| MIF FILTERSYSTEMS (ASIA) LIMITED | Private company limited by shares | Live |
| FILTERTON LIMITED | Private company limited by shares | Dissolved |
| FILTEX TRADING (HONG KONG) LIMITED | Private company limited by shares | Live |
| FILTHESSA SAILETTO PACIFIC LIMITED | Private company limited by shares | Dissolved |
| FILTHWEAR LIMITED | Private company limited by shares | Dissolved |
| FILTHWEAR LIMITED | Private company limited by shares | Live |
| FILTIN LIMITED | Private company limited by shares | Dissolved |
| FILTOMAT (CHINA) COMPANY LIMITED | Private company limited by shares | Dissolved |
| FILTOMAT ENVIRONTEC LIMITED | Private company limited by shares | Dissolved |
| FILTON LIMITED | Private company limited by shares | Dissolved |
| FILTON INVESTMENT LIMITED | Private company limited by shares | Live |
| ARCHER FILTRADE LIMITED | Private company limited by shares | Dissolved |
| FILTRADE HONG KONG LIMITED | Private company limited by shares | Dissolved |
| FILTRADEHAUS INTERNATIONAL (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| FILTRANS LIMITED | Private company limited by shares | Dissolved |
| HKYS FILTRATE INDUSTRIAL COMPANY LIMITED | Private company limited by shares | Live |
| JILOFOUNT (HK) FILTRATE TECHNOLOGY CO., LIMITED | Private company limited by shares | Dissolved |
| FILTRA-TEK CO., LIMITED | Private company limited by shares | Live |
| 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 |
| FILTRONtec Limited | Private company limited by shares | Live |
| Filtson Electronics Limited | Private company limited by shares | Live |
| Filture Limited | Private company limited by shares | Live |
| FILUM LIMITED | Private company limited by shares | Live |
| FILWC LIMITED | | Live |
| FILYING DRAGON LIMITED | | Live |