# HTS 3914: Ion-exchangers based on polymers of headings 3901 to 3913, in primary forms:

https://geopax.app/tariffs/catalog/39/3914

Source: [2026 HTS Revision 21 (October 9, 2026)](https://hts.usitc.gov/search?query=3914). Additional duties by country of origin may apply; estimate a shipment's full duty with the tariff calculator: https://geopax.app/tariffs/calculator

## 3914: Ion-exchangers based on polymers of headings 3901 to 3913, in primary forms:

| Code | Description | General | Special | Column 2 | Units |
| --- | --- | --- | --- | --- | --- |
| 3914.00 | Ion-exchangers based on polymers of headings 3901 to 3913, in primary forms: |  |  |  |  |
| 3914.00.20.00 |   Cross-linked polyvinylbenzyltrimethylammonium chloride (Cholestyramine resin USP) | Free |  | 35% | kg |
| 3914.00.60.00 |   Other | 3.9% | Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG) | 35% | kg |
|  |   II. WASTE, PARINGS AND SCRAP; SEMIMANUFACTURES; ARTICLES: |  |  |  |  |