Norethindrone Acetate from China
Norethindrone acetate is a synthetic progestin used in oral contraceptives and hormone therapy, structurally derived from 19-nortestosterone. Classified under HTS 2937.23.5050 as a progestin derivative used primarily as a hormone per Chapter 29 definitions. Its organic compound nature and hormonal function determine this specific tariff placement.
Duty Rate — China → United States
100%
Rate breakdown
9903.04.60100%Pharmaceuticals: patented pharma articles — 100% floor rate
9903.05.860%Universal product exemption (U.S. note 52(b))
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 pharmacopeial compliance certificates (USP/EP) to demonstrate pharmaceutical grade
• Declare exact purity levels; impurities above 1% may cause reclassification to mixtures
• Use validated cold chain documentation to prevent degradation during ocean freight