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2917.20.00.00/Dimer acid/Canada

Dimer acid from Canada

Dimer acids are oligomeric cyclanic polycarboxylic acids produced by clay-catalyzed dimerization of unsaturated fatty acids. Despite polymer nature, classified as chemically defined cyclanic polycarboxylic acids under HTS 2917.20.00.00 when meeting purity standards. Used in polyamide hot-melt adhesives.

Duty Rate — Canada → United States

14.2%

Rate breakdown

9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
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Import Tips

• Submit GPC analysis showing number-average MW <1000 Da to qualify as Chapter 29 compound

• Provide acid value and saponification value test results confirming polycarboxylic nature

• Distinguish from trimer acids which may require different statistical reporting

Dimer acid from Canada — Import Duty Rate | HTS 2917.20.00.00