Sodium Carboxymethyl Cellulose Powder
Sodium carboxymethyl cellulose (CMC) powder, a cellulose derivative used as a thickener in food, pharmaceuticals, and detergents, in primary powder form. This modified natural polysaccharide is classified under tariff item 3913.90.00 as a modified natural polymer in primary form, not elsewhere specified.
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 product is carboxymethylcellulose and its salts
Carboxymethylcellulose is specifically named in heading 3912, not 3913.
If the product is another cellulose ether
Other cellulose ethers are classified in heading 3912.
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
• Ensure the CMC is in primary powder form and not formulated into a preparation with other ingredients
• Have technical data showing the degree of substitution and viscosity for CBSA verification
• Verify whether the product is for food, pharmaceutical, or industrial use, as different agencies may have jurisdiction
Related Products under Tariff item 3913.90.00
Alginic Acid Powder
Alginic acid powder is a natural polymer extracted from brown seaweed, used in food gelling and pharmaceutical encapsulation. It is supplied in primary powder form. As a natural polymer not elsewhere specified, it falls under tariff item 3913.90.00.
Carboxymethyl Guar Gum
Carboxymethyl guar gum is a chemically modified derivative of guar gum, a natural polysaccharide, with carboxymethyl groups added to enhance water solubility for cosmetics and oil recovery applications. It is supplied in primary powder form. As a modified natural polymer, it is classified under tariff item 3913.90.00.
Carboxymethyl Starch Powder
Carboxymethyl starch powder is a starch derivative modified with carboxymethyl groups, used as a binder in paper and pharmaceutical tablets. It is supplied in primary powder form. As a chemically modified natural polymer, it falls under tariff item 3913.90.00.
Casein Modified Powder
Casein modified powder is chemically hardened casein protein derived from milk, used in industrial coatings and adhesives. It is supplied in primary powder form. As a hardened protein, a modified natural polymer, it is classified under tariff item 3913.90.00.
Cassia Gum Powder
Cassia gum powder derived from cassia tora seeds, a polysaccharide thickener for pet food and industrial applications, in primary powder form. This natural galactomannan polysaccharide derivative is classified under tariff item 3913.90.00 as a modified natural polymer in primary form, not elsewhere specified.
Chitosan Flakes
Chitosan flakes are a natural polymer derived from chitin through deacetylation, sourced from crustacean shells. They are used in water treatment and biomedical applications. Supplied in primary flake form, they qualify as a modified natural polymer under tariff item 3913.90.00.