Industrial Tetraethylene Pentamine Flake from Mexico
TEPA processed into stable flakes for easier transport qualifies under HTS 2921.29.0010 as an acyclic polyamine with necessary anti-caking agents per Chapter 29 note (f). Applied in chelate production and oil additives.
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
• Provide flake composition analysis showing anti-caking agent doesn't alter primary chemical function
• Ensure flake form doesn't constitute 'put up for retail sale' which might invoke Chapter 38
• Declare exact water content; excessive dilution could shift to Chapter 29 note (d) aqueous solutions