United States tariff line 2519.90.20.00: Caustic calcined magnesite
Last updated
Key facts
- Tariff line
- 2519.90.20.00
- Covers
- Caustic calcined magnesite
- Duty (MFN)
- Free
- Additional duties
- None recorded
- Restrictions
- None recorded
- Tariff
- United States
- HS subheading
- 2519.90
Summary
In the United States tariff, line 2519.90.20.00 covers caustic calcined magnesite. Goods under this line enter free of general (MFN) duty. It falls under HS subheading 2519.90 in heading 25.19 (chapter 25).
What this line covers
In the United States tariff, line 2519.90.20.00 covers caustic calcined magnesite.
Its legal text is “Caustic calcined magnesite”, read under “Other”.
How it is structured
It falls under HS subheading 2519.90 in heading 25.19 (chapter 25). The first six digits are the Harmonized System code; the 4 digits after them are added by the United States tariff.
- Chapter 25
- Salt; sulphur; earths and stone; plastering materials, lime and cement
- Heading 25.19
- Natural magnesium carbonate (magnesite); fused magnesia; dead-burned (sintered) magnesia, whether or not containing small quantities of other oxides added before sintering; other magnesium oxide, whether or not pure
- Subheading 2519.90
- Other
- Line 2519.90.20.00
- Caustic calcined magnesite
Duty
Goods under this line enter free of general (MFN) duty.
Other lines under 2519.90
- 2519.90.10.00Fused magnesia and dead-burned (sintered) magnesia
- 2519.90.50.00Other
In other countries
No other national tariff on border.bot has live lines under 2519.90 yet.
Frequently asked questions
What does tariff line 2519.90.20.00 cover in the United States tariff?
In the United States tariff, line 2519.90.20.00 covers caustic calcined magnesite.
What is the general (MFN) duty on 2519.90.20.00 in the United States?
Goods under this line enter free of general (MFN) duty.
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: