Pharmaceutical Grade Witherite from Mexico
Ultra-pure natural witherite meeting pharmacopeia standards for barium content, used as raw material for radiopaque agents. HTS 2511.20.00.00 applies pre-formulation as natural mineral source. Basis for barium meal contrast media.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Include USP/EP certificates proving natural origin despite high purity
• Declare pharma end-use but emphasize mineral status before processing
• Prepare for FDA scrutiny on purity claims that border synthetic territory