O-Ethyl Methylphosphonothioate from Canada
CH3P(O)(SCH2CH3)(OR) featuring P-methyl and P-S-ethyl bonds, where ethyl meets HTS 2931.49.0055 single C2 group allowance. The thioate function keeps it organo-inorganic per chapter notes. Pesticide intermediate.
Duty Rate — Canada → United States
100%
Rate breakdown
9903.04.6096.3%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
• EPA registration or TSCA notification required for pesticide-related imports
• Sulfur content analysis prevents 2930 organo-sulfur misclassification
• Odoriferous; proper ventilation markings on shipping documents