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Tetrabutyltin for Polymerization Catalysis from Canada

Technical grade Tetrabutyltin specifically for olefin polymerization catalysis, classified HTS 2931.90.90.25. Meets Chapter 29 criteria for organo-inorganic tin compounds despite end-use labeling.

Duty Rate — Canada → United States

13.7%

Rate breakdown

9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada

Import Tips

End-use statements don't change chemical classification; remains 2931

Provide import documentation separating from PVC stabilizer uses

Monitor REACH Annex XVII restrictions on organotin supply chain

Tetrabutyltin for Polymerization Catalysis from Canada — Import Duty Rate | HTS 2931.90.90.25