Semi-Colloidal Graphite Heat Transfer Compound from Japan
Thick paste of micronized artificial graphite in silicone grease for thermal interface between CPU heatsinks and processors. Classified HTS 3801.90.0050 as semi-colloidal graphite preparation. Enhances heat dissipation in electronics assembly.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
Import Tips
• Thermal conductivity specs (>5 W/mK) confirm graphite functionality over silicone base
• RoHS compliance certification required; heavy metals in graphite source common issue
• Particle size distribution certificate prevents cosmetic product misclassification