High-Phosphorus Phosphor Copper CuP15 from United States
> CuP15 grade phosphor copper is a chemically defined phosphide with over 15% phosphorus content, used as a deoxidizer in copper and bronze casting. Chapter Note 7 explicitly includes copper phosphide with more than 15% phosphorus in heading 28.53, so this product falls under this tariff item.
Duty Rate — United States → Canada
0%
Import Tips
• > Provide a certificate of analysis showing phosphorus content above 15% to justify classification
• Ensure the product is not mixed with other materials that could alter its chemical identity
• Check if the product requires any special handling documentation due to its chemical nature