Graphitized Carbon Black from Canada
Carbon black heat-treated to develop partial graphitic structure, used in lubricants. Borderline HTS 2803.00.0050 if primarily amorphous, but requires analysis. Chapter 28 notes exclude full graphite.
Duty Rate — Canada → United States
10%
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
Import Tips
• Raman spectroscopy proving <10% graphitic content critical
• Layer spacing (d002) measurements confirm amorphous nature
• Avoid high-temperature treatment declarations triggering 3801