Polysaccharides and their derivatives
Natural 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 forms: > Other: > Polysaccharides and their derivatives
Duty Rate (from China)
Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Subheadings
Products classified under HTS 3913.90.20
Hydroxypropyl Methylcellulose (HPMC)
Hydroxypropyl methylcellulose is an inert, viscoelastic polysaccharide derived from cellulose through etherification, widely used in pharmaceuticals for capsule shells and controlled-release formulations. Classified under HTS 3913.90.20 as a modified natural polysaccharide in primary form like powder or granules.
Xanthan Gum
Xanthan gum is a polysaccharide produced by bacterial fermentation of glucose or sucrose, used as a stabilizer in food and oil drilling fluids. It qualifies under HTS 3913.90.20 as a microbial polysaccharide derivative in primary form.
Guar Gum Powder
Guar gum, extracted from guar beans, is a galactomannan polysaccharide used as a natural thickener in hydraulic fracturing and food. Classified in HTS 3913.90.20 as a natural polysaccharide derivative in primary powder form.
Carboxymethyl Guar Gum
Carboxymethyl guar gum is a chemically modified derivative of guar gum polysaccharide, enhancing water solubility for use in cosmetics and oil recovery. HTS 3913.90.20 applies to such polysaccharide derivatives in primary forms.
Hydroxyethyl Cellulose
Hydroxyethyl cellulose is an non-ionic cellulose ether polysaccharide used in paints, cosmetics, and construction. It is a derivative under HTS 3913.90.20 in primary granular or powder form.
Dextran Powder
Dextran is a bacterial polysaccharide used in pharmaceuticals as plasma volume expander. HTS 3913.90.20 covers this microbial derivative in primary form.
Pectin Powder
Pectin, extracted from citrus peels and apple pomace, is a polysaccharide gelling agent for jams. Classified as natural polysaccharide derivative in HTS 3913.90.20 primary form.
Chitosan Powder
Chitosan is deacetylated chitin, a crustacean-derived polysaccharide used in water treatment and wound care. HTS 3913.90.20 for this modified natural polysaccharide.
Locust Bean Gum
Locust bean gum from carob seeds is a galactomannan polysaccharide thickener. Primary form powder under HTS 3913.90.20.
Tara Gum Powder
Tara gum from Caesalpinia spinosa seeds is a polysaccharide stabilizer. HTS 3913.90.20 primary form.
Gellan Gum
Gellan gum, bacterial fermentation polysaccharide for gelled foods. HTS 3913.90.20 derivative.
Welan Gum
Welan gum, bacterial polysaccharide for cement additives. Primary form under HTS 3913.90.20.
Sodium Carboxymethyl Cellulose (CMC)
Sodium carboxymethyl cellulose is a water-soluble derivative of cellulose, a natural polysaccharide, produced through chemical modification with sodium hydroxide and monochloroacetic acid. It falls under HTS 3913.90.20 as a polysaccharide derivative in primary form, used as a thickener in food, pharmaceuticals, and detergents.
Methylcellulose Powder
Methylcellulose is a methyl ether of cellulose, a natural polysaccharide, used as a thickener in food products and laxatives. It is classified in HTS 3913.90.20 for polysaccharide derivatives in primary forms such as fine powder.
Sodium Alginate Powder
Sodium alginate, derived from brown seaweed alginic acid, is a natural polysaccharide salt used in food texturizing and biomedical applications like wound dressings. HTS 3913.90.20 covers it as a polysaccharide derivative in primary powder form.