Graphitized Carbon Black from Japan
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 — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 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