Chapter 69: Ceramic products
HTS heading 6903: Other refractory ceramic goods (for example, retorts, crucibles, muffles, nozzles, plugs, supports, cupels, tubes, pipes, sheaths, rods and…
6 numbered lines under heading 6903, including 4 10-digit statistical lines. The first six digits are the international HS subheading; the general column is the normal US duty rate.
| HTS code | Description | Unit | General | Special | Column 2 |
|---|---|---|---|---|---|
| 6903 | Other refractory ceramic goods (for example, retorts, crucibles, muffles, nozzles, plugs, supports, cupels, tubes, pipes, sheaths, rods and slide gates), other than those of siliceous fossil meals or of similar siliceous earths: | ||||
| 6903.10.00.00 | Containing by weight more than 50 percent of free carbon | kg | Free | 45% | |
| 6903.20.00.00 | Containing by weight more than 50 percent of alumina (Al2O3) or of a mixture or compound of alumina and of silica (SiO2)Note: See 9903.90.08. | kg | Free | 30% | |
| 6903.90.00 | OtherNote: See 9903.90.08. | Free | 30% | ||
| 6903.90.00.10 | Of clay | kg | |||
| 6903.90.00.50 | Other | kg | |||
| II. OTHER CERAMIC PRODUCTS: |
Statistical (10-digit) lines without a rate use the rate of the 8-digit line above them. Additional duties such as Section 301 and Section 232 may apply; check them with the tariff checker.
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Request a free auditSource: Harmonized Tariff Schedule of the United States, 2026 HTS Revision 20 (effective 2026-09-28), U.S. International Trade Commission (hts.usitc.gov), imported 2026-10-07. Reference only; not legal or customs advice or a binding classification. Additional duties under Chapter 99 may apply. ShipWave is not affiliated with the USITC or U.S. Customs and Border Protection.