High-Grade Witherite Concentrate from Mexico
Beneficiated witherite ore with elevated barium carbonate content through natural separation processes like flotation, sold as concentrate. Remains under HTS 2511.20.00.00 as it's still natural mineral, not chemically synthesized. Used in specialty glass and ceramic frits.
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
• Provide beneficiation flow charts proving no chemical reagents altered the mineral composition
• Certify BaCO3 percentage via independent lab tests to match declared value and avoid undervaluation claims
• Segregate from synthetic grades in shipping to prevent cross-contamination disputes