Dowex MAC-3 Mixed Bed Resin
Dowex MAC-3 is a pre-mixed cation-anion resin blend for polishing, based on polymers from headings 3903 and 3906. The resin blend is in primary bead form. As an ion-exchanger based on polymers of headings 39.01 to 39.13, it is classified under 3914.00.00.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the resin blend is formed into finished articles
Articles of plastics are classified in heading 3926.
If the resin blend is mixed with other chemical additives
Prepared chemical products may be classified in Chapter 38.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Confirm the resin blend is in primary form (beads) for this tariff item
• Document the polymer composition of both cation and anion resins for CBSA
• Check if the resin is for industrial use, which may have specific regulatory requirements
Related Products under Tariff item 3914.00.00
Amberjet 4400 Uniform Particle Anion Resin
Amberjet 4400 is a uniform particle size strong base anion exchange resin used in condensate polishing, derived from a styrene copolymer. The resin is in primary bead form. As an ion-exchanger based on polymers of headings 39.01 to 39.13 (specifically polystyrene from heading 3903), it is classified under 3914.00.00.
Amberlite IR-120 Strong Acid Cation Resin
Amberlite IR-120 is a gel-type strong acid cation exchange resin based on a styrene-divinylbenzene copolymer, used in demineralization processes. The resin is in primary bead form. As an ion-exchanger based on polymers of headings 39.01 to 39.13 (polystyrene from heading 3903), it is classified under 3914.00.00.
Ambersep 900 Anion Resin
Ambersep 900 OH is a strong base anion exchange resin for nuclear applications, derived from polystyrene. The resin is in primary bead form. As an ion-exchanger based on polymers of headings 39.01 to 39.13 (polystyrene from heading 3903), it is classified under 3914.00.00.
Chelex 100 Chelating Resin
Chelex 100 is an iminodiacetate chelating ion-exchange resin on a polystyrene matrix, used for metal removal. The resin is in primary bead form. As an ion-exchanger based on polymers of headings 39.01 to 39.13 (polystyrene from heading 3903), it is classified under 3914.00.00.
Cholestyramine Resin USP Powder
Cholestyramine Resin USP Powder is a pharmaceutical-grade ion-exchange resin based on cross-linked polyvinylbenzyltrimethylammonium chloride. It is used to bind bile acids in the intestine for treating hypercholesterolemia. As a primary form (powder) of a polymer from headings 39.01 to 39.13, it falls under tariff item 3914.00.00.
Cholestyramine USP Ion-Exchange Beads
Cholestyramine USP Ion-Exchange Beads are uniform spherical beads of cross-linked polyvinylbenzyltrimethylammonium chloride, designed for bile acid sequestration in cholesterol-lowering therapies. The beads are in primary form, being a bulk granular material. This product is an ion-exchanger based on a polymer of headings 39.01 to 39.13, so it is classified under 3914.00.00.