Dowex 50WX8 Cation Exchange Resin from China
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 — China → United States
28.9%
Rate breakdown
9903.88.0225%Except as provided in headings 9903.88.12, 9903.88.17, 9903.88.20, 9903.88.54, 9903.88.59, 9903.88.61, 9903.88.63, 9903.88.66, 9903.88.67, 9903.88.68, 9903.88.69, or 9903.88.70, articles the product of China, as provided for in U.S. note 20(c) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(d)
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 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