Calcium Metal Lumps from Mexico
Irregular lumps of elemental calcium metal, typically 98-99% pure, obtained from electrolysis or aluminothermic processes, essential for lead-calcium battery alloys and pyrotechnics. Falls under HTS 2805.12.00.00 as unalloyed alkaline-earth metal in primary lump form per Chapter 28 notes.
Duty Rate — Mexico → United States
13%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Provide certificates of analysis confirming calcium content >98%; use inert atmosphere packaging to prevent oxidation
• Comply with DOT hazardous material regulations (UN1401) for air/sea shipment
• Watch for reclassification if lumps exceed certain size thresholds treated as articles