HTS US: 2804.XX.XXXX
Description
Heading 2804 includes hydrogen, rare gases, and other nonmetal elements that are essential in many industrial, scientific, and manufacturing processes. These substances are generally gases at room temperature or other elemental forms used for chemical synthesis, inert atmospheres, semiconductor production, and other specialized applications.
- Hydrogen (2804.10.00.00): The lightest and most abundant element, used as a fuel, in chemical synthesis, and in hydrogenation processes.
- Rare Gases (2804.21 to 2804.29): Includes argon, helium, neon, and isotopically pure rare gases with high purity levels (99% or more). These inert gases serve in lighting, welding, refrigeration, and electronics manufacturing.
- Nitrogen (2804.30.00.00): Widely used as an inert gas in industrial atmospheres and as a refrigerant.
- Oxygen (2804.40.00.00): Essential for combustion, medical applications, and steel production.
- Boron and Tellurium (2804.50): Nonmetal elements used in semiconductors, alloys, and chemical industries.
- Silicon (2804.61 and 2804.69): High-purity silicon, critical for electronics and solar panels, classified by purity levels.
- Phosphorus (2804.70.00.00), Arsenic (2804.80.00.00), Selenium (2804.90.00.00): Used in fertilizers, semiconductors, and glass manufacturing respectively.
Code Hierarchy
- Section IV: Chemicals and Allied Industries (Chapters 28-38)
- Chapter 28: Inorganic Chemicals; Organic or Inorganic Compounds of Precious Metals, of Rare-Earth Metals, of Radioactive Elements or of Isotopes
- Heading 2804: Hydrogen, rare gases and other nonmetals
- US HTS Code (10-digit):
2804.XX.XXXX– The full code specifies the exact element or purity grade.
Detailed Breakdown of Subheadings
The 4-digit HS heading 2804 is subdivided into 6- and 10-digit codes identifying specific elements or groups of elements:
| HS/HTS Code | Description | Examples & Notes |
|---|---|---|
| 2804.10.00.00 | Hydrogen | Pure hydrogen gas used for fuel, chemical synthesis, and industrial processes. |
| 2804.21.00.00 | Argon | Inert gas used in welding, lighting, and electronics manufacturing. |
| 2804.29.00.10 | Helium | Light inert gas used for cooling, balloons, and scientific applications. |
| 2804.29.00.20 | Neon | Used primarily in lighting and signage. |
| 2804.29.00.30 | Isotopically pure rare gases having a purity of 99 percent or more by volume | Rare gases separated by isotope, used in high-precision scientific and industrial applications. |
| 2804.29.00.55 | Other rare gases | Includes krypton, xenon, and other inert gases not specified elsewhere. |
| 2804.30.00.00 | Nitrogen | Widely used inert gas in industrial and scientific applications. |
| 2804.40.00.00 | Oxygen | Essential gas for combustion, medical, and industrial uses. |
| 2804.50.00.10 | Boron | Used in glass, detergents, and semiconductors. |
| 2804.50.00.20 | Tellurium | Used in alloys and semiconductor materials. |
| 2804.61.00.00 | Containing by weight not less than 99.99 percent of silicon | High-purity silicon for electronics and solar industries. |
| 2804.69.10.00 | Containing by weight less than 99.99 percent but not less than 99 percent of silicon | Silicon of slightly lower purity used in various industrial applications. |
| 2804.69.50.00 | Other silicon-containing substances | Miscellaneous silicon products not classified elsewhere. |
| 2804.70.00.00 | Phosphorus | Used in fertilizers, chemicals, and safety matches. |
| 2804.80.00.00 | Arsenic | Used in semiconductors, alloys, and pesticides. |
| 2804.90.00.00 | Selenium | Used in glass production, pigments, and electronics. |
What is NOT Classified Here?
To ensure correct classification, note the following exclusions:
- Compounds and mixtures: This heading only covers elemental forms; compounds of these elements are classified under other headings.
- Organic compounds: Organic derivatives of these elements are classified elsewhere.
- Alloys: Mixtures or alloys containing these elements are classified under metal or alloy headings.
Notes
- Purity specifications: Some subheadings specifically address purity levels, such as isotopically pure rare gases or high-purity silicon, reflecting their specialized industrial uses.
- Industrial importance: Elements in this heading are critical in sectors such as electronics, lighting, metallurgy, and chemical manufacturing.
- Regulations: Import and export of some gases and elements may be subject to environmental, safety, or export control regulations.
Declaration Example
Product: Shipment of isotopically pure helium gas with 99.9% purity.US HTS Code:
2804.29.00.30(Isotopically pure rare gases having a purity of 99 percent or more by volume)Unit of Quantity: Cubic meters (m³)
General Duty Rate: Check current USHTS – may vary depending on purity and use.
Additional Requirements: Compliance with environmental and safety regulations for compressed gases.
Related HTS Codes
- HTS 2803: Carbon (including graphite and other forms)
- HTS 2811: Other inorganic acids and inorganic oxygen compounds
- HTS 2812: Chlorides and bromides
- HTS 2805: Alkali metals, alkaline-earth metals, and scandium and yttrium











