Sodium Gluconate Concrete Retarder from Japan
Specialty sodium gluconate formulated as concrete set retarder for hot weather pouring applications. Classified under 2918.16.50.10 as pure sodium gluconate meeting chapter purity requirements. Used at 0.2-0.5% dosage in ready-mix concrete.
Duty Rate — Japan → United States
23.8%
Rate breakdown
9903.04.6211.3%Patented pharmaceutical articles that are the product of Japan, of a European Union member country, of South Korea, of Switzerland, or of Liechtenstein as provided for in subdivisions (c) and (f) of U.S. note 40 to this subchapter
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
• Declare as pure chemical even when marketed for concrete; end-use doesn't change heading
• Provide dosage recommendations proving <1% use rate maintains chemical identity
• Watch for reclassification if pre-diluted beyond chapter note (d) water limits