HTS heading 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 US Harmonized Tariff Schedule covers Other clays (not including expanded clays of heading 6806), andalusite, kyanite and sillimanite, whether or not calcined; mullite; chamotte or dinas earths. Below: every rated tariff line in it with its general duty rate, Section 301 China status and exclusions, then a page per line with a free duty calculator.
Heading 2508 at a glance
- 6 rated tariff lines; 6 duty-free at the general (MFN) rate.
- Section 301 (products of China): 5 of 6 lines on a list in effect (List 3).
Goods named in this heading (official line texts): Bentonite, Fire-clay, Andalusite, kyanite and sillimanite, Mullite, Chamotte or….
Subheadings (6-digit)
- 2508.10: Other clays (not including expanded clays of heading 6806), andalusite, kyanite …: Bentonite (1 line)
- 2508.30: Other clays (not including expanded clays of heading 6806), andalusite, kyanite …: Fire-clay (1 line)
- 2508.40: Other clays (not including expanded clays of heading 6806), andalusite, kyanite …: Other clays (1 line)
- 2508.50: Andalusite, kyanite and sillimanite (1 line)
- 2508.60: Other clays (not including expanded clays of heading 6806), andalusite, kyanite …: Mullite (1 line)
- 2508.70: Other clays (not including expanded clays of heading 6806), andalusite, kyanite …: Chamotte or… (1 line)
All tariff lines in heading 2508
| Line | Description | General | Section 301 (China) | Exclusions |
|---|---|---|---|---|
| 2508.10.00 | Other clays (not including expanded clays of heading 6806), andalusite, kyanite …: Bentonite | Free | List 3 +25% | |
| 2508.30.00 | Other clays (not including expanded clays of heading 6806), andalusite, kyanite …: Fire-clay | Free | none | |
| 2508.40.01 | Other clays (not including expanded clays of heading 6806), andalusite, kyanite …: Other clays | Free | List 3 +25% | |
| 2508.50.00 | Andalusite, kyanite and sillimanite | Free | List 3 +25% | |
| 2508.60.00 | Other clays (not including expanded clays of heading 6806), andalusite, kyanite …: Mullite | Free | List 3 +25% | |
| 2508.70.00 | Other clays (not including expanded clays of heading 6806), andalusite, kyanite …: Chamotte or… | Free | List 3 +25% |
All of chapter 25 · Chapter 25 rate summary · HTS lookup
General information from the official US Harmonized Tariff Schedule (USITC) and USTR Section 301 notices in HTS Chapter 99; not legal or customs advice. Classification is decided by CBP; confirm with a licensed customs broker or a CBP binding ruling.
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