2804.30.00.00
Hydrogen, rare gases and other nonmetals / Nitrogen
Classification path
- Hydrogen, rare gases and other nonmetals
- Nitrogen
Rates of duty
- General (MFN)
- 3.7%
- Column 2Cuba, North Korea, Russia, Belarus
- 25%
- Unit of quantity
- thousand m3
Trade agreement rates
Related lines in heading 2804
- 2804.10.00.00Hydrogen, rare gases and other nonmetals / Hydrogen3.7%
- 2804.21.00.00Hydrogen, rare gases and other nonmetals / Rare gases / Argon3.7%
- 2804.29.00.10Hydrogen, rare gases and other nonmetals / Rare gases / Helium3.7%
- 2804.29.00.20Hydrogen, rare gases and other nonmetals / Rare gases / Neon3.7%
- 2804.29.00.30Isotopically pure rare gases having a purity of 99 percent or more by volume3.7%
- 2804.29.00.55Hydrogen, rare gases and other nonmetals / Rare gases / Other3.7%
- 2804.40.00.00Hydrogen, rare gases and other nonmetals / Oxygen3.7%
- 2804.50.00.10Hydrogen, rare gases and other nonmetals / Boron; tellurium / BoronFree
- 2804.50.00.20Hydrogen, rare gases and other nonmetals / Boron; tellurium / TelluriumFree
- 2804.61.00.00Containing by weight not less than 99.99 percent of siliconFree
- 2804.69.10.00Containing by weight less than 99.99 percent but not less than 99 percent of silicon5.3%
- 2804.69.50.00Hydrogen, rare gases and other nonmetals / Silicon / Other5.5%
About heading 2804
Hydrogen, rare gases and other nonmetals
Heading 2804 covers the nonmetal elements in elemental form: hydrogen, the rare gases, nitrogen, oxygen, boron, tellurium, silicon, phosphorus, arsenic and selenium. The heading is split first by element, then by purity for silicon and by gas identity for the rare gases. Most lines carry a 3.7% general rate, while silicon at lower purity and most of the metalloid elements are split between free and higher rates.
Full guide to heading 2804Products in this heading
- Hydrogen gas, compressed or in bulk
- Argon for welding and shielding gas
- Helium for balloons and cryogenics
- Nitrogen in cylinders or liquid form
- Oxygen for medical or industrial use
- Boron powder
- Silicon of semiconductor-grade purity (99.99% or more)
- Selenium and tellurium in elemental form
Frequently asked questions
What is the HTS code for argon?
Argon is classified under 2804.21.00.00, and the general (MFN) rate is 3.7%.
What is the duty on silicon?
The rate depends on purity. Silicon containing 99.99% or more by weight is 2804.61.00.00 at Free, silicon at 99 to 99.99% is 2804.69.10.00 at 5.3% general (MFN), and other silicon is 2804.69.50.00 at 5.5% general (MFN).
How do I classify helium?
Helium falls under the rare gases other than argon line, 2804.29.00.10, at a general (MFN) rate of 3.7%.
Source: USITC Harmonized Tariff Schedule, retrieved October 21, 2026.