Calcium Lignosulfonate Liquid from Japan
Calcium lignosulfonate is a concentrated liquid residual lye from wood pulp sulfite digestion, used primarily as a concrete plasticizer and animal feed pellet binder. Classified under HTS 3804.00.5000 due to its origin as tall oil-free lignin sulfonates from the pulping process.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
Import Tips
• Check pH and metal content specs to distinguish from similar dispersants in other chapters
• Provide pulping process certification; concentrated forms still qualify as residual lyes
• Comply with TSCA registration for chemical import notifications