C12000 Domical Phosphorus Copper Slabs from Mexico
C12000 Domical phosphorus copper slabs are refined copper products with 0.004-0.12% phosphorus, cast in unwrought slab form for specific welding uses. They fall under tariff item 7403.19.00 as other unwrought refined copper, as the phosphorus content is within the refined copper limits.
Duty Rate — Mexico → Canada
0%
Import Tips
• Verify the phosphorus content is within the refined copper limits (≤0.3% for other elements) to avoid classification as a copper alloy
• Provide a certificate of analysis showing phosphorus and copper percentages
• Note that if the phosphorus content exceeds the limit, the product may be classified as a copper alloy under heading 7403.29