Dowex 50WX8 Cation Exchange Resin from Japan
Dowex 50WX8 is a high-capacity strong acid cation resin from polystyrene matrix, ideal for nuclear and pharmaceutical purification. It qualifies under HTS 3914.00.60.00 for ion-exchangers based on heading 3903 polymers in primary bead form, as 'Other'.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Include cross-section analysis confirming bead primary form (not sheets/films); certify no plasticizers exceeding definitions
• Pitfall: bulk packaging over 38.1x45.7cm may lose Free (B) under 3921 note if misdeclared
• Track country-of-origin for polymer synthesis