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%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
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