Magnesium Sulfite Tribasic from Germany
Tribasic magnesium sulfite (Mg3(SO3)2) used in pharmaceutical buffering and flame retardants. Classified in HTS 2832.20.00.00 as a chemically defined sulfite salt of an inorganic base.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.05.3910%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.97, articles the product of a member state of the European Union, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 10 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• GMP certification required for pharma grades; non-certified may face FDA detention
• Specify basicity level (tribasic); ambiguous descriptions lead to 2835 classification errors
• Monitor for asbestos contamination in natural-derived sources during inspections