Esterified Potato Starch for Textile Sizing from United States
Esterified potato starch is chemically modified through esterification to size yarns in textile weaving, providing abrasion resistance. This modification places it under tariff item 3505.10.19 as an 'other' esterified starch, distinct from native or pregelatinized starches.
Duty Rate — United States → Canada
8%
Import Tips
• Document the esterification process and the specific ester groups for CBSA
• Verify the starch is not pregelatinized, which would fall under 3505.10.20
• Ensure the product is not a textile finishing preparation of Chapter 34