| FIRST WATER TECHNOLOGIES LIMITED | Private company limited by shares | Live |
| HK WATER CUBIC TECHNOLOGIES HOLDING LIMITED | Private company limited by shares | Live |
| STANDARD WATER TECHNOLOGIES LIMITED | Private company limited by shares | Dissolved |
| Water & Wine Technologies Limited | Private company limited by shares | Live |
| Xiongmao Water Technologies Limited | | Live |
| WATER TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| Q WATER TECHNOLOGY LIMITED | Private company limited by shares | Live |
| PP WATER TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Dissolved |
| PCA Water Technology Limited | Private company limited by shares | Live |
| WATER TECHNOLOGY LIMITED | Private company limited by shares | Live |
| BIO WATER TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Be Water Technology Company Limited | Private company limited by shares | Live |
| ACEBEST WATER TREATMENT TECHNOLOGY CO., LIMITED | | Live |
| BLACK WATER TECHNOLOGY (HONGKONG) CO., LIMITED | Private company limited by shares | Live |
| Deep Water Bay Technology Company Limited | Private company limited by shares | Live |
| WATER DRAGON TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Live |
| HK TIANJUN WATER TREATMENT ENERGY-SAVING TECHNOLOGY LIMITED | Private company limited by shares | Live |
| E-PLAN WATER TECHNOLOGY LIMITED | Private company limited by shares | Live |
| T.Y. Water Fountain Technology Co., Limited | Private company limited by shares | Live |
| GERMANY DINGDONG WATER PURIFICATION TECHNOLOGY LIMITED | Private company limited by shares | Live |
| GLOBALEX WATER AND AIR TECHNOLOGY LIMITED | Private company limited by shares | Live |
| GREEN WATER TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| HK WATER TO HEALTH TECHNOLOGY GROUP LIMITED | Private company limited by shares | Dissolved |
| Hightech Water Technology Company Limited | Private company limited by shares | Live |
| HYDROGEN WATER TECHNOLOGY LIMITED | Private company limited by shares | Live |
| GENERAL WATER TECHNOLOGY INVESTMENT CO. LIMITED | Private company limited by shares | Live |
| JINMIN WATER TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| ZHE JIANG LITER WATER TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Live |
| MEGA WATER TECHNOLOGY LIMITED | | Live |
| WATER NANO TECHNOLOGY LIMITED | Private company limited by shares | Live |
| ASIA PACIFIC WATER TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Live |
| Powerful Water Technology Limited | Private company limited by shares | Live |
| UCL WATER TECHNOLOGY (PRC) LIMITED | Private company limited by shares | Dissolved |
| Prodigy-EMB Water Technology Limited | Private company limited by shares | Live |
| SAMSUNG WATER PURIFIER TECHNOLOGY LIMITED | Private company limited by shares | Live |
| HONGTAI WATER QUALITY TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| SANCTUS WATER TECHNOLOGY LIMITED | Private company limited by shares | Live |
| GERMANY CARADON SAVE WATER TECHNOLOGY LIMITED | Private company limited by shares | Live |
| DEMETER WATER SAVING TECHNOLOGY LIMITED | Private company limited by shares | Live |
| WATER AND SODA TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Live |
| SUPER WATER TECHNOLOGY LIMITED | Private company limited by shares | Live |
| THAMES WATER TECHNOLOGY LIMITED | Private company limited by shares | Live |
| WATER PRO WATER TREATMENT TECHNOLOGY LIMITED | Private company limited by shares | Live |
| TENSON WATER TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| Water Test Depot Limited | Private company limited by shares | Dissolved |
| THREE WATER TRADE LIMITED | | Live |
| Tibet Water Limited | Private company limited by shares | Live |
| Water Tiger Trading Limited | | Live |
| WATER TOOL CO., LIMITED | Private company limited by shares | Live |
| VICTORIA WATER TOURS LIMITED | Private company limited by shares | Dissolved |
| WATER TOWER LIMITED | Private company limited by shares | Dissolved |
| Sun Water Trading Limited | Private company limited by shares | Live |
| WATER BEE TRADING LIMITED | Private company limited by shares | Live |
| Water Beauty Trading Company Limited | Private company limited by shares | Live |
| HK TWO BOTTLES WATER TRADING CO., LIMITED | | Live |
| TIBET GLACIAL COMMERCIAL AND TRADING WATER LIMITED | | Live |
| WATER GOLD TRADING LIMITED | Private company limited by shares | Live |
| WATER & GOLD TRADING LIMITED | | Live |
| Hang Fai Air-Condition Water Electric Trading Limited | Private company limited by shares | Live |
| LUCKY WATER TRADING LIMITED | Private company limited by shares | Dissolved |
| WATER MARK TRADING LIMITED | Private company limited by shares | Dissolved |
| PURE WATER TRADING LIMITED | Private company limited by shares | Dissolved |
| Shining Water Trading Limited | Private company limited by shares | Live |
| Strauss Water HK Trading Company Limited | Private company limited by shares | Live |
| WATER TECHNOLOGY SYSTEMS TRADING CO., LIMITED | Private company limited by shares | Live |
| TRANS STRAIT WATER SPORT LIMITED | Private company limited by shares | Dissolved |
| WATER FUN TRAVEL LIMITED | Private company limited by shares | Live |
| Water Tours Travel Limited | Private company limited by shares | Dissolved |
| HK CHERISH WATER TREAMENT CO., LIMITED | Private company limited by shares | Live |
| WAH MEI WATER TREATMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| WIN WIN WATER TREATMENT LIMITED | Private company limited by shares | Live |
| ANCO WATER TREATMENT LIMITED | Private company limited by shares | Live |
| A-ONE WATER TREATMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| ASIA WATER TREATMENT LIMITED | Private company limited by shares | Dissolved |
| EURO WATER TREATMENT LIMITED | Private company limited by shares | Live |
| FIBERSHELL WATER TREATMENT SYSTEM LIMITED | Private company limited by shares | Live |
| OCEAN WATER TREATMENT LIMITED | Private company limited by shares | Dissolved |
| PURETECH WATER TREATMENT LIMITED | Private company limited by shares | Live |
| PUROTEC WATER TREATMENT LIMITED | Private company limited by shares | Live |
| HACS WATER TREATMENT SERVICE LIMITED | Private company limited by shares | Live |
| 4R WATER TREATMENT SYSTEM LIMITED | Private company limited by shares | Live |
| TEAM WAY WATER TREATMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| Tsing Water Limited | Private company limited by shares | Dissolved |
| TSUN YING WATER WORKS LIMITED | Private company limited by shares | Live |
| WATER TWINS LIMITED | Private company limited by shares | Live |
| United Water (Asia) Limited | Private company limited by shares | Live |
| UNITED WATER (CHINA) LIMITED | Private company limited by shares | Dissolved |
| THE UNIVERSAL WATER LIMITED | | Live |
| UNIVERSE WATER PROOFING & MACHINERY LIMITED | Private company limited by shares | Live |
| UNIVERSE WATER PROOFING MATERIALS LIMITED | Private company limited by shares | Dissolved |
| Upper Water Well Limited | | Live |
| Vast Water Limited | Private company limited by shares | Live |
| EURO WATER VENTURE LIMITED | Private company limited by shares | Live |
| Water Ventures (HK) Limited | Private company limited by shares | Live |
| Running Water Ventures Limited | Private company limited by shares | Live |
| VEOLIA WATER (CHANGZHOU) INVESTMENT LIMITED | Private company limited by shares | Live |
| Veolia Water - Chevalier Limited | Private company limited by shares | Live |
| VEOLIA WATER SOUTH CHINA LIMITED | Private company limited by shares | Live |
| Veolia Water (Haikou) Investment Co. Limited | Private company limited by shares | Live |
| VEOLIA WATER HONG KONG LIMITED | Private company limited by shares | Live |