2804.29.00.30/Isotopically Pure Helium-3 Gas/China

Isotopically Pure Helium-3 Gas from China

Helium-3 (He-3) is a rare stable isotope of helium with isotopic purity exceeding 99% by volume, classified under HTS 2804.29.0030 as an isotopically pure rare gas. It is used in cryogenic research and neutron detection due to its unique nuclear properties.

Duty Rate — China → United States

28.7%

Rate breakdown

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)

9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter

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Import Tips

• Verify isotopic purity certification from supplier exceeding 99% by volume to meet HTS 2804.29.0030 criteria

• Obtain Material Safety Data Sheets (MSDS) and ensure compliance with DOT regulations for compressed gas transport

• Avoid misclassification as standard helium (2804.29.0010); declare isotopic composition accurately to prevent audits