Key facts
- HS subheading
- 2508.40
- Duty (MFN)
- Free
- National lines
- 3
- Tariff
- United States
- Chapter
- 25: Salt; sulphur; earths and stone; plastering materials, lime and cement
Summary
The United States tariff splits HS 2508.40 (other clays) into 3 national lines: 2508.40.01.10 (common blue clay and other ball clays), 2508.40.01.20 (decolorizing earths and fuller's earth) and 2508.40.01.50 (other). Every United States line under 2508.40 is free of general (MFN) duty.
United States lines under 2508.40
The United States tariff splits HS 2508.40 (other clays) into 3 national lines: 2508.40.01.10 (common blue clay and other ball clays), 2508.40.01.20 (decolorizing earths and fuller's earth) and 2508.40.01.50 (other).
Every United States line under 2508.40 is free of general (MFN) duty.
- 2508.40.01.10Common blue clay and other ball claysDuty: Free
- 2508.40.01.20Decolorizing earths and fuller's earthDuty: Free
- 2508.40.01.50OtherDuty: Free
In other countries
No other national tariff on border.bot has live lines under 2508.40 yet.
Frequently asked questions
How many national tariff lines does the United States tariff have under HS 2508.40?
The United States tariff splits HS 2508.40 (other clays) into 3 national lines: 2508.40.01.10 (common blue clay and other ball clays), 2508.40.01.20 (decolorizing earths and fuller's earth) and 2508.40.01.50 (other).
What is the duty on HS 2508.40 in the United States?
Every United States line under 2508.40 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: