Ethanolamine Mixtures (Di/Tri) from Mexico
Mixtures of diethanolamine and triethanolamine classified as acyclic polyamine derivatives under HTS 2921.29.00.55 per Chapter note (b) on isomer mixtures.
Duty Rate — Mexico → United States
100%
Rate breakdown
9903.04.6093.5%Pharmaceuticals Annex IV: patented pharma articles — 100% floor rate
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
Import Tips
• Specify exact isomer ratio in technical data sheet for customs verification
• Classify based on predominant isomer structure, not total amine equivalence
• Confirm <0.1% diethylene glycol content to avoid glycol classification