HTS 2508.50.00.00: US import duty from China
Other clays (not including expanded clays of heading 6806), andalusite, kyanite and sillimanite, whether or not calcined; mullite; chamotte or dinas earths, Andalusite, kyanite and sillimanite. Here is the full China to US duty stack and what it costs to land.
Duty rate & fees
| Charge | Rate |
|---|---|
| Base duty (MFN) | 0% |
| Section 301 (Lists 1-4) | 25% |
| Total duty (on customs value) | 25% |
| Merchandise Processing Fee (MPF) | 0.3464% (min $33.58, max $651.50) |
| Harbor Maintenance Fee (HMF), ocean | 0.125% |
Worked example: $10,000 shipment
| Customs value | $10,000.00 |
| Base duty (MFN) | $0.00 |
| Section 301 (Lists 1-4) | $2,500.00 |
| Merchandise Processing Fee | $34.64 |
| Harbor Maintenance Fee | $12.50 |
| Total landed cost | $12,547.14 |
Excludes freight and insurance. Run your exact numbers in the calculator →
FAQ
What is the import duty on HTS 2508.50.00.00 from China?
Goods classified under HTS 2508.50.00.00 (Other clays (not including expanded clays of heading 6806), andalusite, kyanite and sillimanite, whether or not calcined; mullite; chamotte or dinas earths, Andalusite, kyanite and sillimanite) have a duty of 25% of the customs value on the China to US lane (base rate plus any Section 301 tariff), plus the Merchandise Processing Fee (0.3464%, min $33.58, max $651.50) and, for ocean shipments, the Harbor Maintenance Fee (0.125%).
What does HTS code 2508.50.00.00 cover?
Other clays (not including expanded clays of heading 6806), andalusite, kyanite and sillimanite, whether or not calcined; mullite; chamotte or dinas earths, Andalusite, kyanite and sillimanite. US Customs and Border Protection determines the final classification at entry.
How much does it cost to import HTS 2508.50.00.00 from China?
On a $10,000 shipment, the estimated total landed cost is $12,547, about 25.5% in duty and fees. Use the calculator for your exact value, quantity, and shipping mode.
Related codes in heading 2508
- 2508.10.00.00Other clays (not including expanded clays of heading 6806), andalusite, kyanite and sillimanite, whether or not calcined; mullite; chamotte or dinas earths, Bentonite
- 2508.30.00.00Other clays (not including expanded clays of heading 6806), andalusite, kyanite and sillimanite, whether or not calcined; mullite; chamotte or dinas earths, Fire-clay
- 2508.40.01.10Other clays (not including expanded clays of heading 6806), andalusite, kyanite and sillimanite, whether or not calcined; mullite; chamotte or dinas earths, Other clays, Common blue clay and other ball clays
- 2508.40.01.20Other clays (not including expanded clays of heading 6806), andalusite, kyanite and sillimanite, whether or not calcined; mullite; chamotte or dinas earths, Other clays, Decolorizing earths and fuller's earth
- 2508.40.01.50Other clays (not including expanded clays of heading 6806), andalusite, kyanite and sillimanite, whether or not calcined; mullite; chamotte or dinas earths, Other clays, Other
- 2508.60.00.00Other clays (not including expanded clays of heading 6806), andalusite, kyanite and sillimanite, whether or not calcined; mullite; chamotte or dinas earths, Mullite
- 2508.70.00.00Other clays (not including expanded clays of heading 6806), andalusite, kyanite and sillimanite, whether or not calcined; mullite; chamotte or dinas earths, Chamotte or dinas earth
All of Chapter 25: Salt; sulfur; earths and stone; plastering materials, lime and cement →
Estimates for planning only. Final classification and duty are determined by U.S. Customs and Border Protection at entry. Rates from USITC HTSUS 2026-06-15-cn-us. The IEEPA reciprocal tariff was struck down (SCOTUS, 2026-02-20) and is excluded. Not legal or customs-broker advice.