HS code 2512.00: Siliceous fossil meals (for example, kieselguhr, tripolite and diatomite) and similar siliceous earths, whether or not calcined, of an apparent specific gravity of 1 or less
Last updated
Key facts
- HS code
- 2512.00
- Covers
- Siliceous fossil meals (for example, kieselguhr, tripolite and diatomite) and similar siliceous earths, whether or not calcined, of an apparent specific gravity of 1 or less
- Edition
- HS2022
- Duty in the United States
- See its 1 line
Summary
HS code 2512.00 covers siliceous fossil meals (for example, kieselguhr, tripolite and diatomite) and similar siliceous earths, whether or not calcined, of an apparent specific gravity of 1 or less. It sits in heading 25.12 (siliceous fossil meals (for example, kieselguhr, tripolite and diatomite) and similar siliceous earths, whether or not calcined, of an apparent specific gravity of 1 or less) in chapter 25 (salt; sulphur; earths and stone; plastering materials, lime and cement). It is the only subheading of heading 25.12, so every good of the heading is classified here. National tariff lines under 2512.00 are live on border.bot for the United States (1 line, also used by 1 other country).
What this code covers
HS code 2512.00 covers siliceous fossil meals (for example, kieselguhr, tripolite and diatomite) and similar siliceous earths, whether or not calcined, of an apparent specific gravity of 1 or less.
The legal text of the subheading is “Siliceous fossil meals (for example, kieselguhr, tripolite and diatomite) and similar siliceous earths, whether or not calcined, of an apparent specific gravity of 1 or less”, in HS2022.
What it doesn’t cover
It is the only subheading of heading 25.12, so every good of the heading is classified here.
How it is structured
2512.00 is a six-digit subheading. Its first two digits, 25, are the chapter; the first four, 2512, are heading 25.12; the last two, 00, identify the subheading within the heading.
Countries add their own digits after these six for their national tariff lines.
- Subheading 2512.00
- Siliceous fossil meals (for example, kieselguhr, tripolite and diatomite) and similar siliceous earths, whether or not calcined, of an apparent specific gravity of 1 or less
In other countries
National tariff lines under 2512.00 are live on border.bot for the United States (1 line, also used by 1 other country).
- United States1 line, used by 1 other country
Frequently asked questions
What does HS code 2512.00 cover?
HS code 2512.00 covers siliceous fossil meals (for example, kieselguhr, tripolite and diatomite) and similar siliceous earths, whether or not calcined, of an apparent specific gravity of 1 or less.
Which heading and chapter is HS code 2512.00 in?
HS code 2512.00 is in heading 25.12 (siliceous fossil meals (for example, kieselguhr, tripolite and diatomite) and similar siliceous earths, whether or not calcined, of an apparent specific gravity of 1 or less) in chapter 25 (salt; sulphur; earths and stone; plastering materials, lime and cement).
Where are goods of heading 25.12 classified when 2512.00 doesn’t fit?
2512.00 is the only subheading of heading 25.12, so every good of the heading is classified there.
Which countries’ tariffs list national lines under HS code 2512.00?
National tariff lines under 2512.00 are live on border.bot for the United States (1 line, also used by 1 other country).
Sources and updates
The Harmonized System legal text comes from border.bot release 2 (edition HS 2022), imported from a file, and has been live since 11 October 2026.
This page was last updated on 11 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.