28421000

HS code 2842.10.00.00 (Chapter 28 "Inorganic chemicals"; Heading 2842 "Other salts of inorganic acids or peroxoacids, (including aluminosilicates, whether or not chemically defined), other than azides"; Subheading 284210 "Double or complex silicates, inclu-ding aluminosilicates, whether or not chemically defined") under the United States tariff schedule classifies "Double or complex silicates, including aluminosilicates whether or not chemically defined". United States customs apply MFN rate of 3.7%, Column 2 rate 25%. Statutory unit of measure: kg. 18 free trade agreement preferential rates are available for this code.