Feldspar — HTS 2529
Feldspar; leucite, nepheline and nepheline syenite; fluorspar
Chapter 25 › Heading 2529
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 2529 is a four-digit product category for certain nonmetallic mineral materials: feldspar; leucite, nepheline, and nepheline syenite; and fluorspar. These materials are commonly used as mineral inputs in products such as ceramics, glass, construction materials, and industrial processes. The heading groups related minerals together, but it is not itself the complete classification for an imported shipment.
To reach the correct 8-digit HTSUS code, start with the product’s actual mineral identity and the form in which it is imported. The subheadings generally distinguish among the listed materials and, where applicable, by type or other legally defined characteristics. Review the full legal text, including section and chapter notes, and confirm that the merchandise is not better classified elsewhere. A customs broker or classification specialist may be needed when the material is blended, processed, coated, or described ambiguously.
What to check
- Identify the primary mineral by its commercial and technical name, not only by a trade name or intended use.
- Check whether the shipment is feldspar, leucite, nepheline, nepheline syenite, fluorspar, or a mixture, and document the composition.
- Review the product’s physical form and processing—such as crushed, powdered, concentrated, blended, or otherwise treated—against the exact subheading wording.
- Use laboratory specifications, a safety data sheet, supplier documentation, and the commercial invoice to verify the material description.
- Read the complete HTSUS provisions and confirm any applicable notes, exclusions, and customs guidance before selecting the 8-digit code.
HTS heading 2529 summary
Feldspar is a 4-digit product category containing 2 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 |
|---|---|---|---|---|
| 2529.10.00.00 👉 | Feldspar | Free | — | 49¢/t |
| 2529.30.00 👉 | Leucite; nepheline and nepheline syenite | Free | — | Free |
"Special" shows the free-trade-agreement rate; open a code to see exactly which countries qualify.
Common questions
What products fall under HTS heading 2529?
Feldspar; leucite, nepheline and nepheline syenite; fluorspar. 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.