DL-Malic Acid from Mexico
DL-Malic acid is a racemic mixture of L- and D-malic acid, a dicarboxylic acid with alcohol function (HOOC-CH(OH)-CH2-COOH). It falls under HTS 2918.19.60.00 as malic acid, a carboxylic acid with alcohol function but without other oxygen functions, chemically defined per Chapter 29 note (a).
Duty Rate — Mexico → United States
100%
Rate breakdown
9903.04.6096%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
• Verify purity certificate showing it's chemically defined malic acid, not a mixture or derivative to avoid reclassification
• Provide documentation confirming food-grade or technical grade status; FDA prior notice required for food use
• Check for stabilizers - per Chapter 29 note (f), added stabilizers are allowed if necessary for preservation/transport