29089903

HS code 2908.99.03.00 (Chapter 29 "Organic chemicals"; Heading 2908 "Halogenated, sulphonated, nitrated or nitrosated derivatives of phenols or phenol-alcohols"; Subheading 290899 "- - Other") under the United States tariff schedule classifies "2,5-Dihydroxybenzenesulfonic acid, potassium salt; 3,6-Dihydroxy-2,7-naphthalenedisulfonic acid; 3,6-Dihydroxy-2,7-naphthalenedisulfonic acid, sodium salt; 4-Hydroxy-1-naphthalenesulfonic acid, sodium salt; 1-Naphthol-3,6-disulfonic acid; and 2-Naphthol-3,6-disulfonic acid and its salts". United States customs apply MFN rate of 5.5%, Column 2 rate 15.4¢/kg + 45.5%. Statutory unit of measure: kg. 18 free trade agreement preferential rates are available for this code.