Heat Sink Copper Rectangle Profile from United States
A machinable refined copper rectangular profile optimized for CNC heat sink production in electronics cooling. It is classified under tariff item 7407.10.90 as an 'other' profile of refined copper, given its solid rectangular cross-section. The product contains a free-machining sulfur addition of less than 0.06%, which does not affect its refined copper status.
Duty Rate — United States → Canada
0%
Import Tips
• Verify the sulfur content is below the 0.3% limit for 'other elements' to maintain refined copper classification
• Provide a certificate of analysis showing the chemical composition for CBSA verification
• Confirm the profile is solid and not hollow to avoid reclassification