Xanthan Gum from Canada
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.
Duty Rate — Canada → United States
15.8%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Fermentation origin docs distinguish from synthetic polymers in 3906
• Ensure <5% comonomer impurities per subheading note (a)(4)
• Oilfield technical grades need end-use statements to avoid general chemical classification