</>Build with Tariff Intelligence|Programmatic access to tariff calculations and HS code classification.Explore Developer Resources →

Tributyltin Chloride Stabilizer from Canada

Tributyltin chloride is an organotin compound used as a PVC stabilizer and biocide. Falls under 2931.90.90.52 as an organo-inorganic compound with tin-carbon bonds, distinguished from sulfonated derivatives.

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

TBT compounds restricted under Aquatic Nuisance Species Act; require EPA TSCA approval

Include butyltin speciation analysis to confirm structure

Hazardous waste manifest required for >1000 lb shipments