Precious Metal Smelting Lead Flux Residue from Mexico
Residue from lead flux used in precious metal smelting, containing mainly lead with gold for further recovery. HTS 2620.29.0050 covers such non-steel slag per chapter notes on industrial metal/compound manufacture.
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 process flow documentation proving industrial use; assay gold without deductions
• Comply with TSCA for chemical residues
• Differentiate from cement additives to prevent 2523 misclassification