HS CodesVII · Plastics and articles thereof; rubber and articles thereof39 · Plastics and articles thereof39143914Chapter 39Copy pageIon-exchangers based on polymers of headings 3901 to 3913, in primary formsDescriptionIon-exchangers based on polymers of headings 3901 to 3913, in primary formsSubheadings391400Ion-exchangers based on polymers of headings 3901 to 3913, in primary formsWas this page helpful?YesNoPrevious3913Natural polymers (for example, alginic acid) and modified natural polymers (for example, hardened proteins, chemical derivatives of natural rubber), not elsewhere specified or included, in primary formsNextWaste, parings and scrap, of plastics3915