Thorium Nitrate Crystals

Crystalline Th(NO3)4, a soluble salt of thorium used in chemical research and lantern mantles. Fits HTS 2844.30.20.50 as a thorium compound, per Chapter 28 notes on radioactive isotopes and their inorganic compounds.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳ChinaFreeFree
🇲🇽MexicoFreeFree
🇨🇦CanadaFreeFree
🇩🇪GermanyFreeFree
🇯🇵JapanFreeFree

Alternative Classifications

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

2844.30.10Higher: 15.5% vs Free

If primarily uranium depleted in U235

Subheading prioritizes uranium-depleted compounds; thorium-dominant mixtures stay here but pure U compounds go to 2844.30.10.

3824.99Higher: 15% vs Free

If doped for electronic use and wafer-formed

Doped chemical elements cut into discs/wafers fall under 3818 per Chapter note, not Chapter 28.

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Import Tips & Compliance

Provide material safety data sheet confirming chemical purity; comply with thorium exemption quantities under 10 CFR 40; label as UN 2972 hazardous material