Annealed Refined Copper Ribbon for Heat Sinks from China
Soft-annealed refined copper ribbon coil, 0.8 mm x 480 mm wide, used in heat sink fins. Falls under HTS 7409.11.5050 for refined copper coils under 5 mm thick and <500 mm width. Annealing enhances thermal conductivity.
Duty Rate — China → United States
36%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Import Tips
• Document annealing process to justify soft temper pricing
• Measure width at multiple points; variance can affect subheading
• Avoid contamination with bronzes (tin >3% per note (b))