Industrial Helium Recovery PSA Unit from China
Pressure swing adsorption system recovers and purifies helium from natural gas streams or mixed gas exhaust by preferentially adsorbing impurities. Falls under HTS 8421.39.0140 as specialized gas separation equipment for rare gas recovery.
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
• Include helium recovery efficiency specs (>95%) and cycle pressure data for verification
• Certify adsorbent beds as non-hazardous to avoid special handling
• Document end-use (MRI/laser gas recovery) for potential duty relief programs