Dihydroxyacetone Dimer (DHA Dimer) from China
DHA Dimer is the cyclic trimer form of 1,3-Dihydroxyacetone, a stable ketone-alcohol used in self-tanning formulations to prevent oxidation during storage. Classified under HTS 2914.40.60.00 as it retains the core ketone-alcohol structure with oxygen functions. It dimerizes in solution but is imported as a white powder for reconversion to active DHA.
Duty Rate — China → United States
37.5%
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
• Provide stability data and dimer conversion specs in documentation; label as 'for further manufacturing' to avoid cosmetic mixture classification; watch for humidity control in shipping to prevent premature dimerization