Chapter 28: Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes

HTS heading 2804: Hydrogen, rare gases and other nonmetals

20 numbered lines under heading 2804, including 16 10-digit statistical lines. The first six digits are the international HS subheading; the general column is the normal US duty rate.

HTS heading 2804
HTS codeDescriptionUnitGeneralSpecialColumn 2
2804Hydrogen, rare gases and other nonmetals:
2804.10.00.00Hydrogenthousand m33.7%Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)25%
Rare gases:
2804.21.00.00Argonthousand m33.7%Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)25%
2804.29.00Other3.7%Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)25%
2804.29.00.10Heliumthousand m3
2804.29.00.20Neonthousand m3
2804.29.00.30Isotopically pure rare gases having a purity of 99 percent or more by volumethousand m3
2804.29.00.55Otherthousand m3
2804.30.00.00Nitrogenthousand m33.7%Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)25%
2804.40.00.00Oxygenthousand m33.7%Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)25%
2804.50.00Boron; telluriumFree25%
2804.50.00.10Boronkg
2804.50.00.20Telluriumkg
Silicon:
2804.61.00.00Containing by weight not less than 99.99 percent of siliconkgFree25%
2804.69Other:
2804.69.10.00Containing by weight less than 99.99 percent but not less than 99 percent of siliconkg, Si kg5.3%Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)21%
2804.69.50.00Otherkg, Si kg5.5%Free (A+,AU,BH,CL,CO,E,IL, JO,KR,MA, OM,P,PA,PE,S,SG)45%
2804.70.00.00PhosphoruskgFree17.6ยข/kg
2804.80.00.00ArsenickgFree13.2ยข/kg
2804.90.00.00SeleniumNote: See 9903.90.08.kgFreeFree

Statistical (10-digit) lines without a rate use the rate of the 8-digit line above them. Additional duties such as Section 301 and Section 232 may apply; check them with the tariff checker.

Source: Harmonized Tariff Schedule of the United States, 2026 HTS Revision 20 (effective 2026-09-28), U.S. International Trade Commission (hts.usitc.gov), imported 2026-10-07. Reference only; not legal or customs advice or a binding classification. Additional duties under Chapter 99 may apply. ShipWave is not affiliated with the USITC or U.S. Customs and Border Protection.