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Heavy Water (Deuterium Oxide) D2O 99.9% Purity

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.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳ChinaFree+37.5%37.5%
🇲🇽MexicoFree+10.0%10%
🇨🇦CanadaFree+10.0%10%
🇩🇪GermanyFree+10.0%10%
🇯🇵JapanFree+12.5%12.5%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

2844Lower: 12.5% vs 37.5%

If derived from radioactive isotopes or elements with atomic number >84

Compounds of radioactive isotopes fall under heading 2844, prioritizing radioactive elements over stable isotopes like deuterium.

2853.10.00.00Higher: 40.3% vs 37.5%

If mixed with cyanogen or other complex non-metallic compounds

Chapter notes specify certain isotope compounds with cyanogen derivatives classify in 2853, not as standalone isotopes.

Not sure which classification is right?

The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.

Import Tips & Compliance

• 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