Pharmaceutical Zinc Dust USP Grade from Mexico
Ultra-pure zinc dust meeting USP standards, produced via vapor condensation with >97% metallic zinc and particles 80%+ through 63-micron sieve, used in pharmaceutical ointments and topical preparations. Classified as zinc dust under HTS 7903.10.00.00 based on physical form and chapter notes.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Include USP/EP certificate of analysis confirming metallic zinc and particle specs
• For FDA-regulated imports, file prior notice via ACE even for bulk intermediates
• Package in inert atmosphere to prevent oxidation, which could alter classification