Nicotinamide (Niacinamide) from China
Nicotinamide is the amide form of vitamin B3, an aromatic heterocyclic amide essential nutrient. HTS 2924.29.77.90 as other aromatic cyclic amide. Used in supplements and therapeutics.
Duty Rate — China → United States
44%
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
Import Tips
• Vitamin but pure chemical form stays Chapter 29; finished supplements go to 3003/2106
• USP grade requires heavy metal/impurity specs; GRAS status aids food use claims
• Distinguish from niacin (acid form) in 2936 heading