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Lignin Sulfonate Sodium Salt from Canada

Sodium lignosulfonate from sulfite pulping of wood contains phenolic sulfo groups, classified as a sulfonated phenol derivative under HTS 2908.99.1500 when meeting chemical purity standards. Used as binder in concrete and dispersant.

Duty Rate — Canada → United States

15.5%

Rate breakdown

9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada

Import Tips

Provide sulfomethylation degree analysis (>15%); ensure <5% carbohydrates

Common error: Polymer classification under 3913 if molecular weight >10,000 Da

Lignin Sulfonate Sodium Salt from Canada — Import Duty Rate | HTS 2908.99.15.00