Tin Alloy Transition Sheet 0.4mm (Near Alloy Limit) from Mexico
Tin sheet 0.4 mm thick with 0.39% copper, borderline unalloyed for flexible packaging liners. HTS 8007.00.20.00 if certified under note (a) limits; used in food-safe barriers.
Duty Rate — Mexico → United States
12.4%
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
• Conduct independent lab assay for Bi/Cu content before entry to lock classification
• Prepare fallback docs for alloy status if CBP contests purity
• Use heat-number traceability from mill for verification