Anhydrous Sodium Metasilicate from Mexico
Anhydrous sodium metasilicate (Na2SiO3) is the water-free powdered form of this commercial alkali metal silicate, explicitly covered by HTS 2839.11.00.00. It serves as a key ingredient in heavy-duty detergents and industrial cleaners due to its high pH and emulsifying capabilities.
Duty Rate — Mexico → United States
11.1%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Provide SDS and chemical composition data to customs for verification as a pure inorganic silicate
• Package in moisture-proof bags to prevent hydration during transit, maintaining anhydrous classification
• Check for anti-dumping duties if sourced from certain countries; file correct entry summary