Industrial Valproic Acid from Mexico
Industrial-grade valproic acid for synthesis of derivatives in fine chemicals. Its status as a separate chemically defined compound per chapter note 2(a) places it in HTS 2915.90.14.00.
Duty Rate — Mexico → United States
100%
Rate breakdown
9903.04.6095.8%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
• Declare industrial end-use to avoid pharma scrutiny; use stainless steel containers
• Watch for auto-classification errors to generic acids