Tenofovir Disoproxil Bulk from Canada
Tenofovir disoproxil bulk is an antiviral nucleotide reverse transcriptase inhibitor for HIV and hepatitis B. Mixed for therapeutic manufacturing, non-retail, under HTS 3003.90.0120.
Duty Rate — Canada → 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
• Align with WHO prequalification for generics
• Test for phosphate impurities; frequent issue
• Document as intermediate for pharma production