HTS heading
6903Other 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:
Rates as published in 2026 HTS Revision 15, captured 2026-08-13. Source: USITC Harmonized Tariff Schedule.
Current duty rates (3 lines)
| Code | Description | General | Special | Column 2 |
|---|---|---|---|---|
| 6903.10.00.00 | Containing by weight more than 50 percent of free carbon | 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) | Free | — | 30% |
| 6903.90.00 | Other | Free | — | 30% |
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