Ground Calcium Carbonate (GCC) Powder from Mexico
Ground calcium carbonate is a micronized powder derived from high-purity limestone, meeting the definition of calcium carbonate under HTS 2836.50.00.00 when chemically processed. Used in pharmaceuticals, food supplements, and as an antacid.
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
• Obtain particle size distribution and whiteness index certifications to support fine-ground classification
• For food/pharma grades, include FDA compliance docs and heavy metal test results
• Avoid bulk shipments without proper segregation to prevent contamination claims