Mineral substances not elsewhere specified or included — HTS 2530
Mineral substances not elsewhere specified or included
Chapter 25 › Heading 2530
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 2530 is a broad product category for mineral substances that are not specifically described in another tariff heading. It can cover various natural or mineral-based materials, including certain earths, stones, mineral products, and related substances. The heading is a starting point, not usually the final classification for an import shipment.
To reach the correct 8-digit HTSUS code, first identify the product’s exact material and type, then follow the more detailed subheadings under heading 2530. The subheading structure may distinguish products by mineral identity, composition, physical form, processing, or intended characteristics. Read the complete legal description, including section and chapter notes and any exclusions, rather than choosing based only on a commercial name.
What to check
- Identify the mineral substance by its composition, source, and physical form; obtain a technical data sheet or laboratory information when needed.
- Check whether another HTS heading describes the product more specifically before using heading 2530.
- Read every subheading under 2530 and compare the product’s material or type with the full wording of each candidate 8-digit code.
- Confirm whether processing, mixtures, additives, packaging, or a stated use changes the classification analysis.
- Verify the current HTSUS text and consult a customs broker or request a binding ruling when the material or subheading is difficult to distinguish.
HTS heading 2530 summary
Mineral substances not elsewhere specified or included is a 4-digit product category containing 1 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.
Sub-categories
| Code | Description |
|---|---|
| 2530.20 | Kieserite, epsom salts (natural magnesium sulfates) |
| 2530.90 | Other |
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 |
|---|---|---|---|---|
| 2530.10.00.00 👉 | Vermiculite, perlite and chlorites, unexpanded | 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 2530?
Mineral substances 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.