Magnesium Per Carbonate from Mexico
Magnesium percarbonate is utilized in oral care products like toothpaste for whitening and as a mild disinfectant. Classified in HTS 2836.99.50 as other peroxocarbonates, per Chapter notes excluding section V products. It decomposes to hydrogen peroxide and magnesium carbonate.
Duty Rate — Mexico → United States
3.7%
Rate breakdown
9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 to this subchapter
Import Tips
• Cross-check with FDA for cosmetic/drug claims; may need cosmetic notification
• Document exclusion from section V (e.g
• not pure magnesium oxide)
• Avoid bulk misclassification as fertilizer additives under Chapter 31