Tributyl Tin Chloride from Mexico
Tributyltin chloride (Bu3SnCl) contains tin-carbon bonds defining organo-inorganic classification under heading 2931. Used as biocide intermediate and PVC stabilizer precursor. 2931.90.90 as other, since not specifically enumerated; chapter notes exclude halogenated organics without metal-carbon bonds.
Duty Rate — Mexico → United States
13.7%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• TSCA Section 5(a)(2) SNUR applies; cannot manufacture without EPA notification
• Marine pollutant—IMDG Code Column 17 'P' designation requires specific shipping papers
• Common reclassification attempt to 2931.00; chloride substituent doesn't change organotin heading