- Kingwater Enviro-Tech HK
- Address:Unit 8 14 / F Blk 1 Tak Lee Ind Centre 8 Tsing Yeung Circuit
- Hotfrost
- Address:Room 709, Wellborne Commercial Centre, 8 Java Road, North Point
- Jiayi International Limited
- Address:
- SPARKCO INTERNATIONAL LTD.
- Address:18 Des Voeux Road
- China Euro Manufactures
- Address:31 / F The Centre, 99 Queens Road Central
- HJC INTERNATIOANL COMPANLY LTD
- Address:
- BIOTEK OZONE HONG KONG LTD
- Address:15 / F, Siu Ying Commercial Building, 151-155 Queen's Road Central
- Alifes International Limited
- Address:Superluck Ind. Bldg 5 / F L2 Tsuen Wan N. T.
- Hongkong BLV CO.,Ltd
- Address:CONNAUGHT ROAD WEST
- Global Water treatment Company (HK) Ltd
- Address:42 Wo Tong Tsui St.
- Water GROUP LIMITED
- Address:UNIT A1 14 / F HILLIER COMM BLDG, 65-65 BONHAM STRAND EAST
- Hotfrost Ltd
- Address:Suite 18B, 148 Connaught Road Central
- Shenzhen ShuiLiJie Technology Co.,LTD
- Address:
- Kangan System Ltd.
- Address:Miramar Tower
- CXCT CO.,lTD
- Address:Unit 2707, 111 Argyle Street, Mongkokg, Kowloon
- OKK Water Purifier Ltd
- Address:Rm. 9, 10 / F New City Centre, 2 Lei Yue Mun Road, kwun Tong
- Yat Fung International Engineering Ltd
- Address:Unit 436-437, 4 / F, Yip On Factory Estate, Phase 2, Wang Hoi Road, Kowloon Bay, Kowloon
- Purepro
- Address:Wah Wai Industrial Bldg.
- BC development Co.
- Address:Flat 7, 16 / F wah chun ind. center, no. 54 tai chung road,
- Taiyu Water Treatment Science and Technology Co.,Ltd
- Address:No. 10 Zhaoxian Road