Tungsten Carbide Catalyst Powder from Germany
Fine tungsten carbide powder serves as a heterogeneous catalyst in Fischer-Tropsch synthesis and hydrocracking processes. Classified under HTS 3815.90.1000 as it consists wholly of inorganic tungsten compounds designed for reaction acceleration. Its high surface area enhances catalytic efficiency in petrochemical applications.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.05.3910%Section 301 (forced labor) — European Union member state (col1 rate < 10 percent): MFN < 10% → total duty capped at 10%
Import Tips
• Submit particle size analysis and BET surface area reports to confirm catalytic-grade specifications
• Include manufacturer specs showing use in reaction initiation, avoiding classification as mere metal powder
• Check for tungsten content purity; impurities may trigger reclassification under 2849