Pharmaceutical Grade Magnesium Oxide USP from Japan
Light magnesium oxide meeting USP standards for use as an antacid and laxative in pharmaceuticals. Classified under HTS 2519.90.50.00 as other magnesium oxide, provided it derives from natural sources and is not a finished medicament.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Provide USP certificate and origin documentation proving natural mineral derivation to distinguish from synthetic chemicals
• Ensure labeling specifies 'magnesium oxide' not formulated as a tablet or capsule to stay out of Chapter 30
• Test for purity levels; USP grade must meet pharmacopeia specs but remains under 2519 if bulk powder