Harmonized Tariff Schedule
Chapter 25: Salt/Sulfur/Earth/Stone
HTS Chapter 25 covers salt/sulfur/earth/stone imported into the United States. Use this page to review tariff classifications, MFN duty rates, and special program rates by code.
HTS Codes in Chapter 25
144 codes| Code | Description | General Rate | Special Rate | Flags |
|---|---|---|---|---|
| 2501.00.00.00 | 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 | Free | - | Section 301 |
| 2502.00.00.00 | Unroasted iron pyrites | Free | - | Section 301 |
| 2503.00.00 | Sulfur of all kinds, other than sublimed sulfur, precipitated sulfur and colloidal sulfur | Free | - | Section 301 |
| 2503.00.00.10 | Crude or unrefined sulfur | Free | - | Section 301 |
| 2503.00.00.90 | Other | Free | - | Section 301 |
| 2504 | Natural graphite: | Free | - | Section 301 |
| 2504.10 | In powder or in flakes: | Free | - | Section 301 |
| 2504.10.10.00 | Crystalline flake (not including flake dust) | Free | - | Section 301 |
| 2504.10.50.00 | Other | Free | - | Section 301 |
| 2504.90.00.00 | Other | Free | - | Section 301 |
| 2505 | Natural sands of all kinds, whether or not colored, other than metalbearing sands of chapter 26: | Free | - | Section 301 |
| 2505.10 | Silica sands and quartz sands: | Free | - | Section 301 |
| 2505.10.10.00 | Sand containing by weight 95 percent or more of silica and not more than 0.6 percent of oxide of iron | Free | - | Section 301 |
| 2505.10.50.00 | Other | Free | - | Section 301 |
| 2505.90.00.00 | Other | Free | - | Section 301 |
| 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: | Free | - | Section 301 |
| 2506.10.00 | Quartz | Free | - | Section 301 |
| 2506.10.00.10 | Sands (other than natural) containing by weight 95 percent or more of silica and not more than 0.6 percent of oxide of iron | Free | - | Section 301 |
| 2506.10.00.50 | Other | Free | - | Section 301 |
| 2506.20.00 | Quartzite | Free | - | Section 301 |
| 2506.20.00.10 | Crude or roughly trimmed | Free | - | Section 301 |
| 2506.20.00.80 | Other | Free | - | Section 301 |
| 2507.00.00.00 | Kaolin and other kaolinic clays, whether or not calcined | Free | - | Section 301 |
| 2508 | Other clays (not including expanded clays of heading 6806), andalusite, kyanite and sillimanite, whether or not calcined; mullite; chamotte or dinas earths: | Free | - | Section 301 |
| 2508.10.00.00 | Bentonite | Free | - | Section 301 |
| 2508.30.00.00 | Fire-clay | Free | - | Section 301 |
| 2508.40.01 | Other clays | Free | - | Section 301 |
| 2508.40.01.10 | Common blue clay and other ball clays | Free | - | Section 301 |
| 2508.40.01.20 | Decolorizing earths and fuller's earth | Free | - | Section 301 |
| 2508.40.01.50 | Other | Free | - | Section 301 |
| 2508.50.00.00 | Andalusite, kyanite and sillimanite | Free | - | Section 301 |
| 2508.60.00.00 | Mullite | Free | - | Section 301 |
| 2508.70.00.00 | Chamotte or dinas earth | Free | - | Section 301 |
| 2509.00 | Chalk: | Free | - | Section 301 |
| 2509.00.10.00 | Crude | Free | - | Section 301 |
| 2509.00.20.00 | Other | Free | - | Section 301 |
| 2510 | Natural calcium phosphates, natural aluminum calcium phosphates and phosphatic chalk: | Free | - | Section 301 |
| 2510.10.00.00 | Unground | Free | - | Section 301 |
| 2510.20.00.00 | Ground | Free | - | Section 301 |
| 2511 | Natural barium sulfate (barytes); natural barium carbonate (witherite), whether or not calcined, other than barium oxide of heading 2816: | Free | - | Section 301 |
| 2511.10 | Natural barium sulfate (barytes): | Free | - | Section 301 |
| 2511.10.10.00 | Ground | Free | - | Section 301 |
| 2511.10.50.00 | Other | $1.25/t | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | Section 301 |
| 2511.20.00.00 | Natural barium carbonate (witherite) | Free | - | Section 301 |
| 2512.00.00.00 | 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 | Free | - | Section 301 |
| 2513 | Pumice; emery; natural corundum, natural garnet and other natural abrasives, whether or not heat-treated: | Free | - | Section 301 |
| 2513.10.00 | Pumice stone | Free | - | Section 301 |
| 2513.10.00.10 | Crude or in irregular pieces, including crushed pumice | Free | - | Section 301 |
| 2513.10.00.80 | Other | Free | - | Section 301 |
| 2513.20 | Emery, natural corundum, natural garnet and other natural abrasives: | Free | - | Section 301 |
| 2513.20.10.00 | Crude or in irregular pieces | Free | - | Section 301 |
| 2513.20.90.00 | Other | Free | - | Section 301 |
| 2514.00.00.00 | Slate, whether or not roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape | Free | - | Section 301 |
| 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: | Free | - | Section 301 |
| 2515.11.00.00 | Crude or roughly trimmed | Free | - | Section 301 |
| 2515.12 | Merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape: | Free | - | Section 301 |
| 2515.12.10.00 | Marble | Free | - | Section 301 |
| 2515.12.20.00 | Travertine | 3% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | Section 301 |
| 2515.20.00.00 | Other calcareous monumental or building stone; alabaster | 3% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | Section 301 |
| 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: | Free | - | Section 301 |
| 2516.11.00.00 | Crude or roughly trimmed | Free | - | Section 301 |
| 2516.12.00 | Merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape | 2.8% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | Section 301 |
| 2516.12.00.30 | Having a thickness of 7.5 cm or more | Free | - | Section 301 |
| 2516.12.00.60 | Other | Free | - | Section 301 |
| 2516.20 | Sandstone: | Free | - | Section 301 |
| 2516.20.10.00 | Crude or roughly trimmed | Free | - | Section 301 |
| 2516.20.20.00 | Merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape | 3% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | Section 301 |
| 2516.90.00 | Other monumental or building stone | 3% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | Section 301 |
| 2516.90.00.30 | Having a thickness of 7.5 cm or more | Free | - | Section 301 |
| 2516.90.00.60 | Other | Free | - | Section 301 |
| 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: | Free | - | Section 301 |
| 2517.10.00 | 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 | Free | - | Section 301 |
| 2517.10.00.15 | Pebbles and gravel | Free | - | Section 301 |
| 2517.10.00.20 | Limestone, except pebbles and gravel | Free | - | Section 301 |
| 2517.10.00.55 | Other | Free | - | Section 301 |
| 2517.20.00.00 | Macadam of slag, dross or similar industrial waste, whether or not incorporating the materials cited in subheading 2517.10 | Free | - | Section 301 |
| 2517.30.00.00 | Tarred macadam | Free | - | Section 301 |
| 2517.41.00.00 | Of marble | Free | - | Section 301 |
| 2517.49.00.00 | Other | Free | - | Section 301 |
| 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: | Free | - | Section 301 |
| 2518.10.00.00 | Dolomite, not calcined or sintered | Free | - | Section 301 |
| 2518.20.00.00 | Calcined or sintered dolomite | 3% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | Section 301 |
| 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: | Free | - | Section 301 |
| 2519.10.00.00 | Natural magnesium carbonate (magnesite) | Free | - | Section 301 |
| 2519.90 | Other: | Free | - | Section 301 |
| 2519.90.10.00 | Fused magnesia and dead-burned (sintered) magnesia | Free | - | Section 301 |
| 2519.90.20.00 | Caustic calcined magnesite | Free | - | Section 301 |
| 2519.90.50.00 | Other | Free | - | Section 301 |
| 2520 | Gypsum; anhydrite; plasters (consisting of calcined gypsum or calcium sulfate) whether or not colored, with or without small quantities of accelerators or retarders: | Free | - | Section 301 |
| 2520.10.00.00 | Gypsum; anhydrite | Free | - | Section 301 |
| 2520.20.00.00 | Plasters | Free | - | Section 301 |
| 2521.00.00.00 | Limestone flux; limestone and other calcareous stone, of a kind used for the manufacture of lime or cement | Free | - | Section 301 |
| 2522 | Quicklime, slaked lime and hydraulic lime, other than calcium oxide and hydroxide of heading 2825: | Free | - | Section 301 |
| 2522.10.00.00 | Quicklime | Free | - | Section 301 |
| 2522.20.00.00 | Slaked lime | Free | - | Section 301 |
| 2522.30.00.00 | Hydraulic lime | Free | - | Section 301 |
| 2523 | Portland cement, aluminous cement, slag cement, supersulfate cement and similar hydraulic cements, whether or not colored or in the form of clinkers: | Free | - | Section 301 |
| 2523.10.00.00 | Cement clinkers | Free | - | Section 301 |
| 2523.21.00.00 | White cement, whether or not artificially colored | Free | - | Section 301 |
| 2523.29.00.00 | Other | Free | - | Section 301 |
| 2523.30.00.00 | Aluminous cement | Free | - | Section 301 |
| 2523.90.00.00 | Other hydraulic cements | Free | - | Section 301 |
| 2524 | Asbestos: | Free | - | Section 301 |
| 2524.10.00.00 | Crocidolite (Blue) | Free | - | Section 301 |
| 2524.90.00 | Other | Free | - | Section 301 |
| 2524.90.00.10 | Amosite | Free | - | Section 301 |
| 2524.90.00.30 | Crudes | Free | - | Section 301 |
| 2524.90.00.40 | Milled fibers, group 3 grades (spinning fibers or equivalent) | Free | - | Section 301 |
| 2524.90.00.45 | Milled fibers, group 4 and 5 grades | Free | - | Section 301 |
| 2524.90.00.55 | Other | Free | - | Section 301 |
| 2524.90.00.60 | Other | Free | - | Section 301 |
| 2525 | Mica, including splittings; mica waste: | Free | - | Section 301 |
| 2525.10.00 | Crude mica and mica rifted into sheets or splittings | Free | - | Section 301 |
| 2525.10.00.10 | Split block mica | Free | - | Section 301 |
| 2525.10.00.20 | Mica splittings | Free | - | Section 301 |
| 2525.10.00.50 | Other | Free | - | Section 301 |
| 2525.20.00.00 | Mica powder | Free | - | Section 301 |
| 2525.30.00.00 | Mica waste | Free | - | Section 301 |
| 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: | Free | - | Section 301 |
| 2526.10.00.00 | Not crushed, not powdered | Free | - | Section 301 |
| 2526.20.00.00 | Crushed or powdered | Free | - | Section 301 |
| 2528.00.00 | 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 | Free | - | Section 301 |
| 2528.00.00.05 | Natural sodium borates and concentrates thereof (whether or not calcined) | Free | - | Section 301 |
| 2528.00.00.10 | Natural calcium borates | Free | - | Section 301 |
| 2528.00.00.50 | Other | Free | - | Section 301 |
| 2529 | Feldspar; leucite, nepheline and nepheline syenite; fluorspar: | Free | - | Section 301 |
| 2529.10.00.00 | Feldspar | Free | - | Section 301 |
| 2529.21.00.00 | Containing by weight 97 percent or less of calcium fluoride | Free | - | Section 301 |
| 2529.22.00.00 | Containing by weight more than 97 percent of calcium fluoride | Free | - | Section 301 |
| 2529.30.00 | Leucite; nepheline and nepheline syenite | Free | - | Section 301 |
| 2529.30.00.10 | Nepheline syenite | Free | - | Section 301 |
| 2529.30.00.50 | Other | Free | - | Section 301 |
| 2530 | Mineral substances not elsewhere specified or included: | Free | - | Section 301 |
| 2530.10.00.00 | Vermiculite, perlite and chlorites, unexpanded | Free | - | Section 301 |
| 2530.20 | Kieserite, epsom salts (natural magnesium sulfates): | Free | - | Section 301 |
| 2530.20.10.00 | Kieserite | Free | - | Section 301 |
| 2530.20.20.00 | Epsom salts | Free | - | Section 301 |
| 2530.90 | Other: | Free | - | Section 301 |
| 2530.90.10.00 | Natural cryolite; natural chiolite | Free | - | Section 301 |
| 2530.90.20.00 | Natural micaceous iron oxides | 2.9% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | Section 301 |
| 2530.90.80 | Other | Free | - | Section 301 |
| 2530.90.80.10 | Celestite | Free | - | Section 301 |
| 2530.90.80.15 | Earth colors | Free | - | Section 301 |
| 2530.90.80.50 | Other | Free | - | Section 301 |
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