Key facts
- HS subheading
- 2512.00
- Duty (MFN)
- Free
- National lines
- 1
- Tariff
- United States
- Chapter
- 25: Salt; sulphur; earths and stone; plastering materials, lime and cement
Summary
The United States tariff splits HS 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) into 1 national line: 2512.00.00.00 (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). Every United States line under 2512.00 is free of general (MFN) duty.
United States lines under 2512.00
The United States tariff splits HS 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) into 1 national line: 2512.00.00.00 (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).
Every United States line under 2512.00 is free of general (MFN) duty.
- 2512.00.00.00Siliceous fossil meals (for example, kieselguhr, tripolite and diatomite) and similar siliceous earths, whether or not calcined, of an apparent specific gravity of 1 or lessDuty: Free
In other countries
No other national tariff on border.bot has live lines under 2512.00 yet.
Frequently asked questions
How many national tariff lines does the United States tariff have under HS 2512.00?
The United States tariff splits HS 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) into 1 national line: 2512.00.00.00 (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).
What is the duty on HS 2512.00 in the United States?
Every United States line under 2512.00 is 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: