There is/was

 in Oversea

 Ray Camp Company (USA)
CMS-FILTERTECHNIK (Germany)
Chemical Division Teva Group / Teva Tech Ltd. (Israel )
Aplicacion Y Suministros Textiles S.A (Spain)
CH2M HILL CO. (Saudi Arabia )
Maano Filtration CO.（South Africa）
CHEMPRO TECHNOVATION PVT LTD (India)
Vos International Co., Ltd. (Germany)
Great Lakes Pump & Supply (USA)
John Brooks Co. (Canada)
Trustful Technical Support (China HongKong)
Zimmer AG (Germany)
Liquid Filtration Systems (Holland)
WM consult & sales GmbH + Co. KG (Germany)
ICAP-SIRA Chemicals And Polymers S.P.A. in Italy
Zimmer AG (Germany)
Aqua-Tech Engineering & Supplies Pte ltd in Singapore
Chonbuk National University in Korea
West Coast Power (Private) Ltd in Sri Lanka

 and so on

 in China

 Nanjing Pepsi Cola Drink Co., Ltd.
Jinan Coco Cola Drink Co., Ltd.
Exon Standard Oil (Tianjin) Petroleum Co., Ltd.
Shanghai Dupont Chemistry Co., Ltd.
HOUGHTON Shanghai Co., Ltd.
UPM-Kymmene (Changshu) Paper Industry Co., Ltd.
TOMATEC (Xiamen) Fine Material Co., Ltd.
TAKEMOTO  Foods (Tianjin) Co., Ltd.
Guangxi Nanning East Asia Supar Group Co.
Siegel-Robert Automotive (Suzhou) Co., Ltd.
National Starch and Chemical (Guangdong) Company. (A member of ICI Group)
BK Giulini Leather Chemistry (Jiangyin) Co., Ltd
Saint-Gobain Group Co. in China