3801.90.00.50/Semi-Colloidal Graphite Heat Transfer Compound/Mexico

Semi-Colloidal Graphite Heat Transfer Compound from Mexico

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 — Mexico → United States

14.9%

Rate breakdown

9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico

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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