9999E High Purity Electronic Grade Copper Wire Bar from Canada
Ultra-pure 99.99E refined copper wire bar for semiconductor bonding wire production. Under HTS 7403.12.00.00 as unwrought refined copper in wire bar configuration, distinct from alloys.
Duty Rate — Canada → United States
1%
Rate breakdown
9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 to this subchapter
Import Tips
• Require supplier affidavits on oxygen/impurity levels (<10 ppm) for refined copper validation
• Opt for insured shipping due to high value and sensitivity to contamination during transit
• Monitor anti-dumping duties from specific origins like certain Asian producers