Leaded Anti-Knock Compound Sludge with Gold Residue from Mexico
Sludge byproduct from leaded anti-knock compound manufacturing, primarily lead-based with trace gold from alloyed components. Falls under HTS 2620.21.0050 for leaded sludges containing gold, used in industry for metal recovery. Meets chapter note (b) for arsenic/metal-containing residues for extraction.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Label shipments with precise metal assays to facilitate customs valuation based on gold content
• Obtain certificates confirming non-municipal waste origin to prevent misclassification
• Comply with hazardous waste regulations for leaded materials during import