Chitosan Flakes from Canada
Chitosan, deacetylated chitin from crustacean shells, is a natural polymer in primary flake form for water treatment and biomedical uses. HTS 3913.90.5000 for other natural polymers.
Duty Rate — Canada → United States
6.5%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Certify deacetylation degree (typically >60%) for polymer status; shellfish origin requires allergen labeling if food contact; test for heavy metals