Articles of stone or of other mineral substances — 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
Chapter 68 › Heading 6815
2026 HTS Rev 19 Synced Rules verified Operational
Written to help non-specialists understand this page. Rates, dates, and legal facts come from the official records above and on the linked source.
HTS heading 6815 is a broad product category for articles made from stone or other mineral substances that are not specifically covered by another heading. It also includes certain products made from carbon, carbon fibers, and peat. The heading can therefore cover very different goods, such as manufactured mineral-based articles, carbon-related articles, and peat products, when no more specific HTS provision applies.
To reach the correct 8-digit HTSUS code, first confirm that heading 6815 is the right heading rather than a more specific heading elsewhere. Then follow the heading’s subheadings and statistical breakouts, which commonly distinguish products by their material, composition, physical form, or type of article. The product’s essential characteristics and actual use may matter, and unusual or composite goods may require customs-broker or other classification judgment.
What to check
- Identify the product’s complete composition, including any binders, coatings, reinforcements, or mixed materials.
- Describe what the article is and how it is made—not only the raw material—and check whether another HTS heading specifically covers that type of product.
- Read every subheading and 8-digit statistical breakout under heading 6815; do not stop at the 4-digit heading.
- Check whether the item is a carbon-fiber article, another carbon article, a peat article, or a different mineral-substance article, and verify the applicable wording.
- Use the HTSUS General Rules of Interpretation, section and chapter notes, and current official classification resources; ask a customs broker or request a binding ruling if the classification is uncertain.
HTS heading 6815 summary
Articles of stone or of other mineral substances is a 4-digit product category containing 5 published product-code lines in this snapshot. A heading does not carry one universal duty rate; classification must be narrowed to the line matching the product facts.
How to find your code in this category
A heading is a product category. To get the exact duty, narrow from this 4-digit heading to a sub-category (usually by material), then open the 8-digit code that matches your product.
Open any code in the tables below to see its exact duty rate, a duty calculator (enter your shipment value → estimated duty and landed cost), the rate-change history chart, and the country-by-country breakdown (including Section 301/232 add-on duties).
Why you have to click in: a single category can contain products with very different duties. The rate depends on the specific product — its material and construction — and on the country of origin, and those only get pinned down at the 8-digit code level. That is why this page points you to codes instead of showing one rate for the whole category.
Product codes & duty rates
👇 Each row is a specific product code — click a blue code to open its full page with exact duty rates by country, the rate-history chart, and a duty calculator. 👉
| Code | Description | General (MFN) | Special | Column 2 |
|---|---|---|---|---|
| 6815.11.00.00 👉 | Carbon fibers | Free | — | 45% |
| 6815.12.00.00 👉 | Fabrics of carbon fibers | Free | — | 45% |
| 6815.13.00.00 👉 | Other articles of carbon fibers | Free | — | 45% |
| 6815.19.00.00 👉 | Other | Free | — | 45% |
| 6815.20.00.00 👉 | Articles of peat | Free | — | 20% |
"Special" shows the free-trade-agreement rate; open a code to see exactly which countries qualify.
Common questions
What products fall under HTS heading 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. To classify a specific item you must pick the matching sub-category and 8-digit code above; the right choice usually depends on the material and construction of the product.
How do I choose the right code within this category?
Start from the sub-categories (typically divided by material—for example cotton versus man-made fibers), then open the active 8- or 10-digit code that matches the product. When unsure, a licensed customs broker or a CBP binding ruling can confirm the classification.
Reference information only, not customs, legal, or classification advice. Confirm the current code and rate against the official HTS before you import.