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Tetrabutyltin for Polymerization Catalysis from China

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 — China → United States

41.2%

Rate breakdown

9903.88.0425%Except as provided in headings 9903.88.33, 9903.88.34, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(g) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(g)
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China

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 China — Import Duty Rate | HTS 2931.90.90.25