Anhydrous Sodium Metasilicate from Japan
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 — 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 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