Tandom · Duty calculator
Add country and invoice value for the full duty stack — base + 301 + 232 + AD/CVD + fees.
HTS 2845.40.00.00 is the U.S. Harmonized Tariff Schedule classification for Helium-3. It's a 10-digit statistical line in Chapter 28: Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes, Section VI: Products of the Chemical or Allied Industries, used by U.S. Customs and Border Protection to determine the duty rate at entry. 1 Chapter 99 tariff modification currently stacks on top of the base rate.
New to HTS codes? Read our guide on how HTS classification works →
Chapter 99 overlays that stack on the base rate
| Code | Authority | Rate |
|---|---|---|
| 9903.88.01 | section_301 | The duty provided in the applicable subheading plus 25% |
Past CBP decisions classifying real products under this HTS code. Useful precedent when classifying a similar product — each ruling shows how CBP interpreted the code for a specific case.
Source: CBP CROSS (view all rulings on rulings.cbp.gov →)
HTS 2845.40.00.00 is the U.S. Harmonized Tariff Schedule classification for Helium-3. It belongs to Chapter 28 of the HTSUS.
The general (Column 1) duty rate for HTS 2845.40.00.00 is Free. This is the most-favored-nation (MFN) rate that applies to imports from World Trade Organization member countries.
The Column 2 rate for HTS 2845.40.00.00 is 25%. This rate applies to imports from countries that do not have normal trade relations with the United States (currently Cuba and North Korea).
Yes — HTS 2845.40.00.00 is covered by section_301 provision 9903.88.01 (The duty provided in the applicable subheading plus 25%). Open the code page for the full overlay stack with effective dates and country scopes.
No active AD/CVD orders currently flag HTS 2845.40.00.00 in Tandom's catalog. Tandom monitors Federal Register notices daily; a flag will appear here within 24h of any new order's publication.
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