Sodium Lignosulfonate Liquid from Canada
Sodium lignosulfonate is the sodium salt of lignin sulfonic acid obtained as a spent sulfite liquor from wood pulp production, often concentrated for use as a dust suppressant and concrete plasticizer. Classified under HTS 3804.00.10.00 due to its origin as a lignin sulfonic acid salt from the wood pulping process.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Include pulp mill origin certification to distinguish from synthetic sulfonates that might classify elsewhere
• Declare exact concentration and Brix value; highly diluted solutions risk scrutiny as waste liquids
• Comply with DOT shipping regs for corrosive liquids (pH typically <2) with appropriate UN packaging