3815.90.30.00/Zirconium Oxide Solid Acid Catalyst/Japan

Zirconium Oxide Solid Acid Catalyst from Japan

Sulfated zirconia catalyst for alkylation reactions in gasoline production. Inorganic zirconia base qualifies for 3815.90.3000.

Duty Rate — Japan → United States

10%

Rate breakdown

9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter

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Import Tips

• Acid site density measurement (Hammett acidity) confirms catalytic strength

• Thermal stability >500°C distinguishes from ceramic materials

• Sulfate content <10wt% maintains inorganic classification