Dimer Acid (Aromatic-Derived) from Canada
Dimer acids are high molecular weight acyclic dicarboxylic acids produced by dimerization of unsaturated fatty acids from aromatic petroleum fractions. Falls under HTS 2917.19.40.00 as acyclic polycarboxylic acids derived from aromatic hydrocarbons. Primarily used in polyamide hot melt adhesives.
Duty Rate — Canada → United States
16.5%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Require GC-MS analysis proving aromatic hydrocarbon content >0% for this derivation subheading
• Watch for anti-dusting agents; Chapter 29 note (g) allows minor additions but not functional modifications