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2921.11.00.00/Trimethylamine N-Oxide Dihydrate/China

Trimethylamine N-Oxide Dihydrate from China

Trimethylamine N-oxide dihydrate (TMAO) from seafood processing or synthesis, used as preservative and stabilizer. As trimethylamine derivative, potentially HTS 2921.11.00.00 but typically amine oxides elsewhere—precise for salts.

Duty Rate — China → United States

41.2%

Rate breakdown

9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
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Import Tips

• Distinguish synthetic vs natural origin docs; stabilizer declaration per note (f)