Carbon Molecular Sieve Nitrogen PSA System from China
This PSA unit employs carbon molecular sieves with precise pore sizes to kinetically separate nitrogen from oxygen in compressed air, yielding high-purity N2 for food packaging and electronics. HTS 8421.39.0140 covers this dedicated gas separation machinery.
Duty Rate — China → United States
37.5%
Rate breakdown
9903.88.0125%Except as provided in headings 9903.88.05, 9903.88.06, 9903.88.07, 9903.88.08, 9903.88.10, 9903.88.11, 9903.88.14, 9903.88.19, 9903.88.50, 9903.88.52, 9903.88.58, 9903.88.60, 9903.88.62, 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(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(b) [to this subchapter]
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Submit sieve adsorption isotherm data to prove selective gas separation function
• Avoid bundling with compressors to prevent reclassification as complete air generation sets
• Declare CMS material safety data for hazardous material screening