Corvay Specialty Chemicals is proud to announce to represent the DDDA business of Ningxia Hengli Biochemical Co. Ltd., China, in Europe. Ningxia Hengli has secured intellectual property rights to third generation DDDA production technology from Chinese Academy of Sciences. As a result, they have set up a modern, state of the art production facility with an annual capacity of 50,000 tons! Our new supplier has secured REACH registration. And they are in the process to obtain all quality certificates usually required (ISO9001, ISO14001 and OSHAS18001). Here is the link of Ningxia Hengli’s website.