# HTS 6815: Articles of stone or of other mineral substances (including carbon fibers, articles of carbon fibers and articles of peat), not elsewhere specified or included:

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Source: [2026 HTS Revision 21 (October 9, 2026)](https://hts.usitc.gov/search?query=6815). Additional duties by country of origin may apply; estimate a shipment's full duty with the tariff calculator: https://geopax.app/tariffs/calculator

## 6815: Articles of stone or of other mineral substances (including carbon fibers, articles of carbon fibers and articles of peat), not elsewhere specified or included:

| Code | Description | General | Special | Column 2 | Units |
| --- | --- | --- | --- | --- | --- |
| 6815 | Articles of stone or of other mineral substances (including carbon fibers, articles of carbon fibers and articles of peat), not elsewhere specified or included: |  |  |  |  |
|  |   Carbon fibers; articles of carbon fibers for non-electrical uses; other articles of graphite or other carbon for non-electrical uses: |  |  |  |  |
| 6815.11.00.00 |     Carbon fibers | Free |  | 45% | kg |
| 6815.12.00.00 |     Fabrics of carbon fibers | Free |  | 45% | kg |
| 6815.13.00.00 |     Other articles of carbon fibers | Free |  | 45% | kg |
| 6815.19.00.00 |     Other | Free |  | 45% | kg |
| 6815.20.00.00 |   Articles of peat | Free |  | 20% | kg |
|  |   Other articles: |  |  |  |  |
| 6815.91.00 |     Containing magnesite, magnesia in the form of periclase, dolomite including in the form of dolime, or chromite | Free |  | 30% |  |
| 6815.91.00.11 |       Containing by weight more than 70 percent magnesia, expressed as MgO, with carbon content ranging from trace amounts to less than 30 percent, and chemically bonded by resin or pitch | Free |  | 30% | kg |
| 6815.91.00.71 |       Other | Free |  | 30% | kg |
| 6815.99 |     Other: |  |  |  |  |
| 6815.99.20.00 |       Talc, steatite and soapstone, cut or sawed, or in blanks, crayons, cubes, disks or other forms | Free |  | 2.2¢/kg | kg |
| 6815.99.41 |       Other | Free |  | 30% |  |
| 6815.99.41.10 |         Containing by weight more than 70 percent magnesia, expressed as MgO, with carbon content ranging from trace amounts to less than 30 percent, and chemically bonded by resin or pitch | Free |  | 30% | kg |
| 6815.99.41.70 |         Other | Free |  | 30% | kg |
|  |       I. GOODS OF SILICEOUS FOSSIL MEALS OR OF SIMILAR SILICEOUS EARTHS, AND REFRACTORY GOODS |  |  |  |  |