Key facts
- HS subheading
- 2850.00
- National lines
- 5
- Tariff
- United States
- Chapter
- 28: Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes
Summary
The United States tariff splits HS 2850.00 (hydrides, nitrides, azides, silicides and borides, whether or not chemically defined, other than compounds which are also carbides of heading 28.49) into 5 national lines: 2850.00.05.00 (of calcium), 2850.00.07.00 (of titanium), 2850.00.10.00 (of tungsten), 2850.00.20.00 (of vanadium) and 1 other. The general (MFN) duty differs by line: free on 2850.00.05.00, 4.9% on 2850.00.07.00, 5.5% on 2850.00.10.00, 5.5% on 2850.00.20.00 and 3.7% on 2850.00.50.00.
United States lines under 2850.00
The United States tariff splits HS 2850.00 (hydrides, nitrides, azides, silicides and borides, whether or not chemically defined, other than compounds which are also carbides of heading 28.49) into 5 national lines: 2850.00.05.00 (of calcium), 2850.00.07.00 (of titanium), 2850.00.10.00 (of tungsten), 2850.00.20.00 (of vanadium) and 1 other.
The general (MFN) duty differs by line: free on 2850.00.05.00, 4.9% on 2850.00.07.00, 5.5% on 2850.00.10.00, 5.5% on 2850.00.20.00 and 3.7% on 2850.00.50.00.
- 2850.00.05.00Of calciumDuty: Free
- 2850.00.07.00Of titaniumDuty: 4.9%
- 2850.00.10.00Of tungstenDuty: 5.5%
- 2850.00.20.00Of vanadiumDuty: 5.5%
- 2850.00.50.00OtherDuty: 3.7%
In other countries
No other national tariff on border.bot has live lines under 2850.00 yet.
Frequently asked questions
How many national tariff lines does the United States tariff have under HS 2850.00?
The United States tariff splits HS 2850.00 (hydrides, nitrides, azides, silicides and borides, whether or not chemically defined, other than compounds which are also carbides of heading 28.49) into 5 national lines: 2850.00.05.00 (of calcium), 2850.00.07.00 (of titanium), 2850.00.10.00 (of tungsten), 2850.00.20.00 (of vanadium) and 1 other.
What is the duty on HS 2850.00 in the United States?
The general (MFN) duty differs by line: free on 2850.00.05.00, 4.9% on 2850.00.07.00, 5.5% on 2850.00.10.00, 5.5% on 2850.00.20.00 and 3.7% on 2850.00.50.00.
Sources and updates
The tariff lines for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.
The duty rates for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.
The trade programmes for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.
This page was last updated on 9 October 2026.
Guidance from published tariff data, not a binding ruling. For a decision customs must follow, apply to the destination’s customs authority for a binding tariff ruling.
Official source files: