Carbon Paste for Silicon Carbide Production from Mexico
Paste formulation of artificial graphite powder and phenolic resin used in Acheson furnace process for synthetic silicon carbide manufacture. HTS 3801.90.0050 classification as graphite-based paste semi-manufacture. Essential charge material for abrasive production.
Duty Rate — Mexico → United States
14.9%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Include furnace process specifications confirming paste end-use; prevents chemical mixture classification
• Phenol-formaldehyde resin content requires VOC emissions documentation for certain ports
• Test for free crystalline silica <1% to avoid respirable dust hazmat requirements