Hydroxamic Acid Chelator API from China
Hydroxamic acid chelators derived from hydroxylamine are active ingredients in iron-chelating drugs for thalassemia treatment. Classified under HTS 2928.00.30.00 as pharmaceutical drugs.
Duty Rate — China → United States
100%
Rate breakdown
9903.04.6096.3%Pharmaceuticals: 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 clinical trial data or Orange Book listing for chelator drugs
• Ensure cold chain validation for API stability
• Comply with orphan drug import facilitation programs