HTS Chapter 25 — duty rates by code

USITC 2026HTSRev10 · 150 lines. Each code links to its current duty picture and recent changes.

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
2502.00.00.00 — Unroasted iron pyrites
2503.00.00 — Sulfur of all kinds, other than sublimed sulfur, precipitated sulfur and colloidal sulfur
2504.10.10.00 — Crystalline flake (not including flake dust)
2504.10.50.00 — Other
2504.90.00.00 — Other
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
2505.10.50.00 — Other
2505.90.00.00 — Other
2506.10.00 — Quartz
2506.20.00 — Quartzite
2507.00.00.00 — Kaolin and other kaolinic clays, whether or not calcined
2508.10.00.00 — Bentonite
2508.30.00.00 — Fire-clay
2508.40.01 — Other clays
2508.50.00.00 — Andalusite, kyanite and sillimanite
2508.60.00.00 — Mullite
2508.70.00.00 — Chamotte or dinas earth
2509.00.10.00 — Crude
2509.00.20.00 — Other
2510.10.00.00 — Unground
2510.20.00.00 — Ground
2511.10.10.00 — Ground
2511.10.50.00 — Other
2511.20.00.00 — Natural barium carbonate (witherite)
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
2513.10.00 — Pumice stone
2513.20.10.00 — Crude or in irregular pieces
2513.20.90.00 — Other
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
2515.11.00.00 — Crude or roughly trimmed
2515.12.10.00 — Marble
2515.12.20.00 — Travertine
2515.20.00.00 — Other calcareous monumental or building stone; alabaster
2516.11.00.00 — Crude or roughly trimmed
2516.12.00 — Merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape
2516.20.10.00 — Crude or roughly trimmed
2516.20.20.00 — Merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape
2516.90.00 — Other monumental or building stone
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
2517.20.00.00 — Macadam of slag, dross or similar industrial waste, whether or not incorporating the materials cited in subheading 2517.10
2517.30.00.00 — Tarred macadam
2517.41.00.00 — Of marble
2517.49.00.00 — Other
2518.10.00.00 — Dolomite, not calcined or sintered
2518.20.00.00 — Calcined or sintered dolomite
2519.10.00.00 — Natural magnesium carbonate (magnesite)
2519.90.10.00 — Fused magnesia and dead-burned (sintered) magnesia
2519.90.20.00 — Caustic calcined magnesite
2519.90.50.00 — Other
2520.10.00.00 — Gypsum; anhydrite
2520.20.00.00 — Plasters
2521.00.00.00 — Limestone flux; limestone and other calcareous stone, of a kind used for the manufacture of lime or cement
2522.10.00.00 — Quicklime
2522.20.00.00 — Slaked lime
2522.30.00.00 — Hydraulic lime
2523.10.00.00 — Cement clinkers
2523.21.00.00 — White cement, whether or not artificially colored
2523.29.00.00 — Other
2523.30.00.00 — Aluminous cement
2523.90.00.00 — Other hydraulic cements
2524.10.00.00 — Crocidolite (Blue)
2524.90.00 — Other
2525.10.00 — Crude mica and mica rifted into sheets or splittings
2525.20.00.00 — Mica powder
2525.30.00.00 — Mica waste
2526.10.00.00 — Not crushed, not powdered
2526.20.00.00 — Crushed or powdered
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
2529.10.00.00 — Feldspar
2529.21.00.00 — Containing by weight 97 percent or less of calcium fluoride
2529.22.00.00 — Containing by weight more than 97 percent of calcium fluoride
2529.30.00 — Leucite; nepheline and nepheline syenite
2530.10.00.00 — Vermiculite, perlite and chlorites, unexpanded
2530.20.10.00 — Kieserite
2530.20.20.00 — Epsom salts
2530.90.10.00 — Natural cryolite; natural chiolite
2530.90.20.00 — Natural micaceous iron oxides
2530.90.80 — Other

Operated by FOOM — an AI-operated, human-supervised autonomous service. Source: the official USITC Harmonized Tariff Schedule (US public domain) plus a maintained surcharge ruleset. Informational only — not customs, legal, or financial advice.