Synthetic Zeolite 4A Powder from China
Zeolite 4A is a hydrated sodium calcium aluminosilicate powder used in molecular sieves and ion exchange applications. Classified under HTS 2842.10.00.00 as a double or complex aluminosilicate. Its specific pore size of 4 angstroms enables selective adsorption in industrial processes.
Duty Rate — China → United States
41.2%
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
• Provide particle size distribution and pore volume specs for verification; check for free trade agreement eligibility under HTSUS Annex; avoid bulk packaging confusion with 28xx industrial chemicals