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2931.90.90.25/Tetrabutyltin IV (99% purity)/China

Tetrabutyltin IV (99% purity) from China

High-purity Tetrabutyltin (99%) meets HTS 2931.90.90.25 specifications for organo-tin compounds used in Stille coupling reactions and transalkylation processes. The direct tin-carbon bonds qualify it as an organo-inorganic compound per Chapter 29 definitions.

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
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Import Tips

• Verify 99% purity documentation to confirm 2931 classification over mixtures

• Include Certificate of Analysis (CoA) showing tin-carbon bonding structure

• Comply with EPA organotin restrictions; some uses require SNUR notification

Tetrabutyltin IV (99% purity) from China — Import Duty Rate | HTS 2931.90.90.25