With excellent product quality and perfect service system, we have passed the ISO9001:2015 Certificate, our oxalic acid products are popular with customers at home and abroad. High quality products and good service have lead us to win a lot of customers throughout the world, such as European countries, the United States, South America, Southeast Asia, Africa and Middle East.CTCM’s target is to provide the customers not only with a range of oxalate products, but also with professional support in oxalate products consulting services.