Pharmaceutical Grade Calcium Carbonate USP from Mexico
USP-grade calcium carbonate meeting pharmacopeia standards for purity and microbial limits, classified under HTS 2836.50.00.00 as chemically defined compound. Primary ingredient in antacids like Tums and calcium supplements.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Provide USP/EP certificates and microbial/DMSO test results for FDA clearance
• Use sterile packaging and validate against heavy metal limits (<10 ppm Pb)
• File prior notice via FDA PNSI system 72 hours before arrival