Lignin Sulfonate Concrete Dispersant from Germany
This concentrated sodium-based lignin sulfonate acts as a high-range water reducer in ready-mix concrete, directly derived from black liquor of sulfite pulp mills. It qualifies for HTS 3804.00.5000 as a wood pulp manufacturing residual lye, chemically treated but retaining base composition.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.05.3910%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.97, articles the product of a member state of the European Union, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 10 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Submit assay reports confirming >90% lignin sulfonates to prevent reclassification
• EPA may require pre-manufacture notice under TSCA for first imports
• Avoid bulk packaging confusion with similar synthetic superplasticizers