HTS Chapter 25 tariff rates (headings 2501–2530), 2026
Chapter 25 has 79 tariff lines across 29 headings. 71 (90%) enter duty-free at the general (MFN) rate, and 64 are on a Section 301 list, so products of China pay an extra duty on top.
79 tariff lines, USITC 2026HTSRev19. Specific or compound = a rate per unit (e.g. ¢/kg), not a percentage.
Section 301 China lists in chapter 25
| List | Duty for products of China | Lines |
|---|---|---|
| List 3 | Base rate + 25% | 64 |
3 lines also carry a 2024 four-year-review increase (HTS U.S. note 31), several with future effective dates.
Highest general duty rates in chapter 25
| HTS code | Description | General rate | Section 301 |
|---|---|---|---|
2515.12.20.00 | Travertine | 3% | List 3 (+25%) |
2515.20.00.00 | Other calcareous monumental or building stone; alabaster | 3% | List 3 (+25%) |
2516.20.20.00 | Merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape | 3% | List 3 (+25%) |
2516.90.00 | Other monumental or building stone | 3% | List 3 (+25%) |
2518.20.00.00 | Calcined or sintered dolomite | 3% | List 3 (+25%) |
2530.90.20.00 | Natural micaceous iron oxides | 2.9% | List 3 (+25%) |
All headings in chapter 25
| Heading | Description | Lines | Duty-free | Top rate | On 301 |
|---|---|---|---|---|---|
2501 | Salt (including table salt and denatured salt) and pure sodium chloride, whether or not in aqueous solution or containing added anti-caking or free-flowing agents; sea water | 1 | 1 | 0% | 1 |
2502 | Unroasted iron pyrites | 1 | 1 | 0% | 1 |
2503 | Sulfur of all kinds, other than sublimed sulfur, precipitated sulfur and colloidal sulfur | 1 | 1 | 0% | 1 |
2504 | Natural graphite: | 3 | 3 | 0% | 0 |
2505 | Natural sands of all kinds, whether or not colored, other than metalbearing sands of chapter 26: | 3 | 3 | 0% | 3 |
2506 | Quartz (other than natural sands); quartzite, whether or not roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape: | 2 | 2 | 0% | 2 |
2507 | Kaolin and other kaolinic clays, whether or not calcined | 1 | 1 | 0% | 1 |
2508 | Other clays (not including expanded clays of heading 6806), andalusite, kyanite and sillimanite, whether or not calcined; mullite; chamotte or dinas earths: | 6 | 6 | 0% | 5 |
2509 | Chalk: | 2 | 2 | 0% | 2 |
2510 | Natural calcium phosphates, natural aluminum calcium phosphates and phosphatic chalk: | 2 | 2 | 0% | 2 |
2511 | Natural barium sulfate (barytes); natural barium carbonate (witherite), whether or not calcined, other than barium oxide of heading 2816: | 3 | 2 | 0% | 1 |
2512 | Siliceous fossil meals (for example, kieselguhr, tripolite and diatomite) and similar siliceous earths, whether or not calcined, of an apparent specific gravity of 1 or less | 1 | 1 | 0% | 1 |
2513 | Pumice; emery; natural corundum, natural garnet and other natural abrasives, whether or not heat-treated: | 3 | 3 | 0% | 3 |
2514 | Slate, whether or not roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape | 1 | 1 | 0% | 1 |
2515 | Marble, travertine and other calcareous monumental or building stone of an apparent specific gravity of 2.5 or more, and alabaster, whether or not roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape: | 4 | 2 | 3% | 4 |
2516 | Granite, porphyry, basalt, sandstone and other monumental or building stone, whether or not roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape: | 5 | 2 | 3% | 5 |
2517 | Pebbles, gravel, broken or crushed stone, of a kind commonly used for concrete aggregates, for road metalling, or for railway or other ballast; shingle and flint, whether or not heat-treated; macadam of slag, dross or similar industrial waste, whether or not incorporating the materials cited in the first part of the heading; tarred macadam; granules, chippings and powder, of stones of heading 2515 or 2516, whether or not heat-treated: | 5 | 5 | 0% | 5 |
2518 | Dolomite, whether or not calcined or sintered, including dolomite roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape: | 2 | 1 | 3% | 2 |
2519 | Natural magnesium carbonate (magnesite); fused magnesia; dead-burned (sintered) magnesia, whether or not containing small quantities of other oxides added before sintering; other magnesium oxide, whether or not pure: | 4 | 4 | 0% | 0 |
2520 | Gypsum; anhydrite; plasters (consisting of calcined gypsum or calcium sulfate) whether or not colored, with or without small quantities of accelerators or retarders: | 2 | 2 | 0% | 2 |
2521 | Limestone flux; limestone and other calcareous stone, of a kind used for the manufacture of lime or cement | 1 | 1 | 0% | 1 |
2522 | Quicklime, slaked lime and hydraulic lime, other than calcium oxide and hydroxide of heading 2825: | 3 | 3 | 0% | 3 |
2523 | Portland cement, aluminous cement, slag cement, supersulfate cement and similar hydraulic cements, whether or not colored or in the form of clinkers: | 5 | 5 | 0% | 5 |
2524 | Asbestos: | 2 | 2 | 0% | 2 |
2525 | Mica, including splittings; mica waste: | 3 | 3 | 0% | 3 |
2526 | Natural steatite, whether or not roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape; talc: | 2 | 2 | 0% | 0 |
2528 | Natural borates and concentrates thereof (whether or not calcined), but not including borates separated from natural brine; natural boric acid containing not more than 85 percent of H3BO3 calculated on the dry weight | 1 | 1 | 0% | 1 |
2529 | Feldspar; leucite, nepheline and nepheline syenite; fluorspar: | 4 | 4 | 0% | 2 |
2530 | Mineral substances not elsewhere specified or included: | 6 | 5 | 2.9% | 5 |
General rates apply to most countries; free-trade partners can qualify for the special rate, and Column 2 applies to a few countries. Other duties (Section 232, antidumping/countervailing, other Chapter 99 measures) can also apply. Always confirm a classification with CBP or a licensed customs broker.
How to check any single code in seconds: How to check any US tariff rate by HTS code. Chapter 24 · Chapter 26 · All chapters