HTS 2508: Other clays (not including expanded clays of heading 6806), andalusite, kyanite and sillimanite, whether or not calcined; mullite; chamotte or dinas earths
Heading 2508 of the Harmonized Tariff Schedule of the United States has 8 ten-digit statistical numbers. A US entry line in ACE needs the full ten digits, with the quantity in t.
Check additional duties before you file
- If the goods are made in China, check Section 301 duties under HTSUS heading 9903.88, on top of the general rate, and any exclusions.
| HTSUS number | Description | Unit | General rate |
|---|---|---|---|
| 2508.10.00.00 | Bentonite | t | Free |
| 2508.30.00.00 | Fire-clay | t | Free |
| 2508.40.01 | Other clays | Free | |
| 2508.40.01.10 | Common blue clay and other ball clays | t | |
| 2508.40.01.20 | Decolorizing earths and fuller's earth | t | |
| 2508.40.01.50 | Other | t | |
| 2508.50.00.00 | Andalusite, kyanite and sillimanite | t | Free |
| 2508.60.00.00 | Mullite | t | Free |
| 2508.70.00.00 | Chamotte or dinas earth | t | Free |
Common paperwork mistakes with heading 2508
- The invoice shows the exporter's own code. Only the first six digits are shared worldwide; the US number has ten. Check every line against the list above.
- The quantity is in the wrong unit. These lines report quantity in t, which may not match the invoice's cartons, sets or pieces.
- The packing list and the bill of lading disagree on cartons or gross weight, which can lead to holds and exams.
- The manufacturer's name and address are missing, so the MID cannot be built from the documents.
Look up any ten-digit number, or read the guide to invoice and packing list mismatches.
Check the whole shipment, not one number
FreightProof reads the invoice, packing list and bill of lading together, validates every HTS number and container, builds the MIDs and flags what does not match — in about two minutes.
Data: Harmonized Tariff Schedule of the United States, US International Trade Commission. Rates are for information only.