Heavy Water (Deuterium Oxide) D2O 99.9% Purity from China
Heavy water, chemically known as deuterium oxide (D2O), is water enriched with deuterium isotopes, classified under HTS 2845.10.00.00 as an isotope compound other than those in heading 2844. It is used primarily in nuclear reactors as a neutron moderator due to its unique isotopic properties.
Duty Rate — China → United States
37.5%
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
• Obtain export licenses from supplier countries due to nuclear dual-use regulations; ensure IAEA safeguards documentation for traceability
• Verify purity certificates to avoid misclassification as regular water