2931.90.90.29/Monobutyltin Tris-(2-ethylhexylmercaptoacetate)/Canada

Monobutyltin Tris-(2-ethylhexylmercaptoacetate) from Canada

This organo-tin stabilizer features a tin atom bonded to butyl and mercaptoacetate groups, used in PVC processing. Classified under HTS 2931.90.90.29 for other organo-tin compounds due to the defining Sn-C bond structure.

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)

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Import Tips

• Submit EPA PMN data if new formulation; existing stabilizers need TSCA inventory confirmation

• Ensure declaration specifies organo-tin content to avoid bulk chemical mixtures under 3824