| AA FILTER MFG LIMITED | Private company limited by shares | Live |
| ACME FILTER LIMITED | Private company limited by shares | Live |
| China Aegis Filter Co., Limited | Private company limited by shares | Live |
| AMUAEN FILTER PAPER CO., LIMITED | Private company limited by shares | Live |
| FILTER ASIA LIMITED | Private company limited by shares | Dissolved |
| HUNT TOPS FILTER AUTO PARTS LIMITED | Private company limited by shares | Live |
| Auto Filter Technology Limited | Private company limited by shares | Live |
| HK BAOLI FILTER INDUSTRY LIMITED | Private company limited by shares | Live |
| HK BAOSHENG FILTER LIMITED | Private company limited by shares | Dissolved |
| Filter Skin Beauty Limited | | Live |
| Huaqi biological aerated filter Limited | Private company limited by shares | Dissolved |
| BIOLOGICAL FILTER CHINA LIMITED | Private company limited by shares | Dissolved |
| BRONCO FILTER CO., LIMITED | Private company limited by shares | Live |
| Zhengyi Filter Chemical Co., Limited | Private company limited by shares | Live |
| Chengshi Mesh & Filter Co., Limited | Private company limited by shares | Live |
| North (China) Clean Filter Co., Limited | Private company limited by shares | Live |
| Greatwall Filter Technology (China) Co., Limited | Private company limited by shares | Live |
| GREEN FILTER (CHINA) LIMITED | Private company limited by shares | Live |
| GUANGZHOU CITY CHAOYUE FILTER LIMITED | Private company limited by shares | Live |
| XINXIANG CITY HUAHANG FILTER CO., LIMITED | Private company limited by shares | Live |
| HK AIMULE FILTER CLEANER HOLDING LIMITED | Private company limited by shares | Live |
| GERMANY AISEN FILTER CLEANER (GROUP) LIMITED | Private company limited by shares | Dissolved |
| MAG FILTER CO., LIMITED | Private company limited by shares | Live |
| HL FILTER CO., LIMITED | Private company limited by shares | Live |
| Dongfeng filter Co., Limited | | Live |
| GU'AN COUNTY WEIRUIOU FILTER & EQUIPMENT CO., LIMITED | Private company limited by shares | Live |
| HEBEI FILTER MESH PRODUCTS CO., LIMITED | Private company limited by shares | Live |
| BILIJIA WATER FILTER SYSTEMS (HONGKONG) CO., LIMITED | Private company limited by shares | Live |
| KLAIR FILTER CO., LIMITED | Private company limited by shares | Dissolved |
| HK LUJIAAO FILTER CO., LIMITED | Private company limited by shares | Live |
| ZHEJIANG HEADING FILTER MATERIAL CO., LIMITED | Private company limited by shares | Live |
| Minkang Filter Co., Limited | Private company limited by shares | Live |
| NAFIL FILTER CO., LIMITED | Private company limited by shares | Dissolved |
| SHANGHAI LUCKRIS FILTER CO., LIMITED | Private company limited by shares | Live |
| AGUA FILTER TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| ZHENBENSI FILTER CO., LIMITED | Private company limited by shares | Live |
| GERMANY DEMOER FILTER SHARES LIMITED | Private company limited by shares | Live |
| HK CAR DOCTOR FILTER LIMITED | Private company limited by shares | Live |
| FILTER SYSTEM DONALDSON HOLDINGS LIMITED | Private company limited by shares | Live |
| FAR EAST FILTER COMPANY, LIMITED | Private company limited by shares | Dissolved |
| Enagic Filter HK Co. Limited | Private company limited by shares | Live |
| KIN FILTER ENGINEERING CO., LIMITED | Private company limited by shares | Live |
| EUFIL FILTER INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| USA FLEETGUARD FILTER CO., LIMITED | Private company limited by shares | Live |
| SHANGHAI FLJSW FILTER LIMITED | Private company limited by shares | Live |
| FLOURISHING FILTER LIMITED | Private company limited by shares | Dissolved |
| FLOURISHING FILTER LIMITED | Private company limited by shares | Live |
| SHANGHAI FULIEDA FILTER LIMITED | Private company limited by shares | Live |
| HK FULIEJIA FILTER (INT'L) LIMITED | Private company limited by shares | Dissolved |
| ZHEJIANG FUMOD AUTO FILTER CO., LIMITED | | Live |
| GENEPORE FILTER CO., LIMITED | Private company limited by shares | Dissolved |
| Great Filter Venture Capital Investment Limited | Private company limited by shares | Live |
| GERMANY SHIELD-STAR FILTER GROUP LIMITED | Private company limited by shares | Dissolved |
| Guangzhou Filter Manufacturing Co., Limited | Private company limited by shares | Live |
| DELUX FILTER (SHANG HAI) INT'L LIMITED | Private company limited by shares | Live |
| H.F.C. HYDRAULIC FILTER CARE COMPANY LIMITED | Private company limited by shares | Dissolved |
| RO FILTER (HK) LIMITED | Private company limited by shares | Live |
| FuTejia Filter (HK) Co., Limited | Private company limited by shares | Live |
| DAELIM FILTER TECHNOLOGY (HK) CO., LIMITED | Private company limited by shares | Dissolved |
| FUBUSI (HK) FILTER MANUFACTURING LIMITED | Private company limited by shares | Live |
| Miporfilter (HK) Filter Technology Co. Limited | Private company limited by shares | Live |
| YONGYU FILTER (HK) LIMITED | Private company limited by shares | Dissolved |
| CAMBRIDGE FILTER (HONG KONG) COMPANY LIMITED | Private company limited by shares | Dissolved |
| FILTER GROUP (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| HONG KONG AIR FILTER COMPANY LIMITED | Private company limited by shares | Dissolved |
| Filter Pro Hong Kong Limited | Private company limited by shares | Live |
| Hong Kong Filter Limited | | Live |
| BOSHIDE FILTER (HONG KONG) LIMITED | Private company limited by shares | Live |
| HONGKONG CHUANGLINGTU FILTER LIMITED | Private company limited by shares | Live |
| Hongkong Sofitel Filter Co., Limited | Private company limited by shares | Live |
| K&L FILTER SYSTEM (HONGKONG) CO., LIMITED | Private company limited by shares | Live |
| TOWA FILTER (HONGKONG) CO., LIMITED | Private company limited by shares | Live |
| HONGKONG DESHENG FILTER CO., LIMITED | Private company limited by shares | Live |
| HONGKONG FULUBAO FILTER (INTERNATIONAL) LIMITED | Private company limited by shares | Live |
| HONGKONG KAITE FILTER LIMITED | Private company limited by shares | Live |
| Hongkong Jingzhi Filter Paper Co., Limited | Private company limited by shares | Live |
| HONGKONG SHANLI FILTER GROUP CO., LIMITED | Private company limited by shares | Dissolved |
| HONGKONG YISHENG FILTER (INTERNATIONAL) LIMITED | Private company limited by shares | Dissolved |
| HUA YUAN (HONGKONG) FILTER LIMITED | Private company limited by shares | Live |
| Xinxiang Huahang Filter Co., Limited | Private company limited by shares | Live |
| HOS INDUSTRIAL FILTER MFG CO., LIMITED | Private company limited by shares | Live |
| LENO FILTER INDUSTRIAL LIMITED | Private company limited by shares | Live |
| INTERNATIONAL ASSOCIATION OF BAG FILTER CO., LIMITED | Private company limited by shares | Live |
| FILTER (INTERNATIONAL) FLUID CONTROL LIMITED | Private company limited by shares | Live |
| HK FLJ INTERNATIONAL FILTER HOLDING GROUP LIMITED | Private company limited by shares | Live |
| FILTER TECH INTERNATIONAL (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| KOREA AOSILONG FILTER INTERNATIONAL GROUP LIMITED | Private company limited by shares | Dissolved |
| HK SHENGRUI (INTERNATIONAL) AIR FILTER MATERIAL LIMITED | Private company limited by shares | Live |
| SF FILTER INT'L LIMITED | Private company limited by shares | Live |
| HK MEN TE FILTER (INT'L) CO., LIMITED | Private company limited by shares | Live |
| HK MANFUMOER FILTER (INT'L) LIMITED | Private company limited by shares | Dissolved |
| HK MONBOW FILTER (INT'L) LIMITED | Private company limited by shares | Live |
| JAPAN FILTER INDUSTRY (INTERNATIONAL) LIMITED | Private company limited by shares | Live |
| HK ZHISHENG FILTER (JAPAN CORPORATION) LIMITED | Private company limited by shares | Live |
| SHANGHAI JIAJIELI FILTER CO., LIMITED | Private company limited by shares | Dissolved |
| HK KAITE FILTER LIMITED | Private company limited by shares | Live |
| KYORITSU FILTER COMPANY LIMITED | Private company limited by shares | Live Commenced dormancy on 01-Jul-1998 |
| DONGGUAN LAST&LONG FILTER CO., LIMITED | Private company limited by shares | Live |
| HK LIGAO FILTER (INTERNATIONAL) Co., LIMITED | Private company limited by shares | Live |
| BG AIR FILTER MANUFACTURER LIMITED | Private company limited by shares | Live |