3914.00.60.00/Purolite C100 Cation Exchange Resin/Germany

Purolite C100 Cation Exchange Resin from Germany

Purolite C100 is a strong acid cation exchange resin based on polystyrene-divinylbenzene copolymer (from heading 3903), in primary bead form, used for water softening by exchanging calcium and magnesium ions. It falls under HTS 3914.00.60.00 as an ion-exchanger derived from polymers of headings 3901-3913, classified as 'Other' since it's not specifically named elsewhere. The polymer meets the 95% monomer content rule for polystyrene.

Duty Rate — Germany → United States

10%

Rate breakdown

9903.05.3910%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.97, articles the product of a member state of the European Union, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 10 percent, as provided for in U.S. note 52 to this subchapter

Calculate with your customs value Verify with the Tariff Assistant

Import Tips

• Verify polymer composition documentation to confirm it derives from headings 3901-3913 and meets 95% monomer threshold; obtain supplier certificates for ion-exchange capacity

• Common pitfall: misclassifying as unfinished polymer under 3903 if not functionalized for ion-exchange

• Ensure MSDS for hazardous material handling during customs