New

Ask Wove anything about tariffs.

Try Tariff Assistant

Mordenite Zeolite Isomerization Catalyst from China

Acid mordenite catalyst for paraffin isomerization in gasoline production, improving octane rating. Fits HTS 3815.90.5000 as other reaction initiators for refinery processes.

Duty Rate — China → United States

42.5%

Rate breakdown

9903.05.3112.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of China, as provided for in U.S. note 52 to this subchapter
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)

Import Tips

• Acidity index and BET surface area documentation essential

• Classify as ORM-D if low hazard; bulk silo shipments need dust control

Mordenite Zeolite Isomerization Catalyst from China — Import Duty Rate | HTS 3815.90.50.00