Synthetic Spherical Graphite with Carbon Nanotube Surface Modification from China
Artificial graphite spheres partially covered with vapor-deposited carbon nanotubes for improved electrical conductivity in battery anodes. HTS 3801.10.5010 covers this surface-modified form of artificial graphite used in semi-manufactured state. CNT layer enhances rate capability without altering core graphite structure.
Duty Rate — China → United States
37.5%
Rate breakdown
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)
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• TEM cross-section images required to prove surface-only CNT modification vs. bulk composite
• Carbon content analysis must show >95% graphite to avoid reclassification as polymer composite
• Nanomaterial reporting under TSCA may apply; check supplier's SNUR status