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

Arsenic-Lead Smelting Residues with Silver Impurities from Mexico

Industrial residues from non-ferrous smelting operations featuring high lead and arsenic with embedded silver, destined for chemical compound production. HTS 2620.29.0040 applies per chapter note (b) for arsenic/metal-bearing slags used in extraction.

Duty Rate — Mexico → United States

10%

Rate breakdown

9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico

Import Tips

Include smelter origin certificates distinguishing from iron/steel processes

Conduct pre-shipment assays for silver and arsenic; common error is particle size confusion with iron ore notes

Prepare HAZMAT declarations for arsenic; ensure buyer has extraction facilities