</>Build with Tariff Intelligence|Programmatic access to tariff calculations and HS code classification.Explore Developer Resources →

Alumina Refinery Spent Pot Lining Residue from Japan

Carbonaceous residue from electrolytic reduction cells in aluminum smelting, rich in aluminum compounds, fluorides, and cyanides. Falls under HTS 2620.40.00 due to predominant aluminum content and industrial use in metal recovery or chemical manufacturing. Not from iron/steel processes.

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

Submit cyanide and fluoride content assays; hazardous waste declarations may require special TSCA notifications

Label clearly as 'industrial residue for metal recovery' to prevent customs misclassification as hazardous waste