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Chapter 25: Salt, sulfur, earths, stone, plastering materials, lime, and cement
Browse verified, indexable HTS detail pages in this chapter. Each record links to base duty, source URL, retrieval date, and review boundaries. Mineral products and construction inputs in raw or basic processed form.
61 indexable codes
Common headings on this page
2501 · 12502 · 12503 · 12504 · 12505 · 12506 · 12507 · 12508 · 52510 · 12511 · 1
HTS detail pages
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
Base rate: FreeSource retrieved: 2026-06-15
2502.00.00.00
Unroasted iron pyrites
Base rate: FreeSource retrieved: 2026-06-15
2503.00.00
Sulfur of all kinds, other than sublimed sulfur, precipitated sulfur and colloidal sulfur
Base rate: FreeSource retrieved: 2026-06-15
2504.10.10.00
Crystalline flake (not including flake dust)
Base rate: FreeSource retrieved: 2026-06-15
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
Base rate: FreeSource retrieved: 2026-06-15
2506.20.00
Quartzite
Base rate: FreeSource retrieved: 2026-06-15
2507.00.00.00
Kaolin and other kaolinic clays, whether or not calcined
Base rate: FreeSource retrieved: 2026-06-15
2508.10.00.00
Bentonite
Base rate: FreeSource retrieved: 2026-06-15
2508.30.00.00
Fire-clay
Base rate: FreeSource retrieved: 2026-06-15
2508.40.01
Other clays
Base rate: FreeSource retrieved: 2026-06-15
2508.50.00.00
Andalusite, kyanite and sillimanite
Base rate: FreeSource retrieved: 2026-06-15
2508.70.00.00
Chamotte or dinas earth
Base rate: FreeSource retrieved: 2026-06-15
2510.10.00.00
Unground
Base rate: FreeSource retrieved: 2026-06-15
2511.20.00.00
Natural barium carbonate (witherite)
Base rate: FreeSource retrieved: 2026-06-15
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
Base rate: FreeSource retrieved: 2026-06-15
2513.10.00
Pumice stone
Base rate: FreeSource retrieved: 2026-06-15
2513.20.10.00
Crude or in irregular pieces
Base rate: FreeSource retrieved: 2026-06-15
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
Base rate: FreeSource retrieved: 2026-06-15
2515.11.00.00
Crude or roughly trimmed
Base rate: FreeSource retrieved: 2026-06-15
2515.12.20.00
Travertine
Base rate: 3%Source retrieved: 2026-06-15
2515.20.00.00
Other calcareous monumental or building stone; alabaster
Base rate: 3%Source retrieved: 2026-06-15
2516.11.00.00
Crude or roughly trimmed
Base rate: FreeSource retrieved: 2026-06-15
2516.12.00
Merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape
Base rate: 2.8%Source retrieved: 2026-06-15
2516.20.10.00
Crude or roughly trimmed
Base rate: FreeSource retrieved: 2026-06-15
2516.20.20.00
Merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape
Base rate: 3%Source retrieved: 2026-06-15
2516.90.00
Other monumental or building stone
Base rate: 3%Source retrieved: 2026-06-15
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
Base rate: FreeSource retrieved: 2026-06-15
2517.20.00.00
Macadam of slag, dross or similar industrial waste, whether or not incorporating the materials cited in subheading 2517.10
Base rate: FreeSource retrieved: 2026-06-15
2517.30.00.00
Tarred macadam
Base rate: FreeSource retrieved: 2026-06-15
2517.41.00.00
Of marble
Base rate: FreeSource retrieved: 2026-06-15
2518.10.00.00
Dolomite, not calcined or sintered
Base rate: FreeSource retrieved: 2026-06-15
2518.20.00.00
Calcined or sintered dolomite
Base rate: 3%Source retrieved: 2026-06-15
2519.10.00.00
Natural magnesium carbonate (magnesite)
Base rate: FreeSource retrieved: 2026-06-15
2519.90.10.00
Fused magnesia and dead-burned (sintered) magnesia
Base rate: FreeSource retrieved: 2026-06-15
2519.90.20.00
Caustic calcined magnesite
Base rate: FreeSource retrieved: 2026-06-15
2520.10.00.00
Gypsum; anhydrite
Base rate: FreeSource retrieved: 2026-06-15
2520.20.00.00
Plasters
Base rate: FreeSource retrieved: 2026-06-15
2521.00.00.00
Limestone flux; limestone and other calcareous stone, of a kind used for the manufacture of lime or cement
Base rate: FreeSource retrieved: 2026-06-15
2522.10.00.00
Quicklime
Base rate: FreeSource retrieved: 2026-06-15
2522.20.00.00
Slaked lime
Base rate: FreeSource retrieved: 2026-06-15
2522.30.00.00
Hydraulic lime
Base rate: FreeSource retrieved: 2026-06-15
2523.10.00.00
Cement clinkers
Base rate: FreeSource retrieved: 2026-06-15
2523.21.00.00
White cement, whether or not artificially colored
Base rate: FreeSource retrieved: 2026-06-15
2523.30.00.00
Aluminous cement
Base rate: FreeSource retrieved: 2026-06-15
2523.90.00.00
Other hydraulic cements
Base rate: FreeSource retrieved: 2026-06-15
2524.10.00.00
Crocidolite (Blue)
Base rate: FreeSource retrieved: 2026-06-15
2525.10.00
Crude mica and mica rifted into sheets or splittings
Base rate: FreeSource retrieved: 2026-06-15
2525.20.00.00
Mica powder
Base rate: FreeSource retrieved: 2026-06-15
2525.30.00.00
Mica waste
Base rate: FreeSource retrieved: 2026-06-15
2526.10.00.00
Not crushed, not powdered
Base rate: FreeSource retrieved: 2026-06-15
2526.20.00.00
Crushed or powdered
Base rate: FreeSource retrieved: 2026-06-15
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
Base rate: FreeSource retrieved: 2026-06-15
2529.10.00.00
Feldspar
Base rate: FreeSource retrieved: 2026-06-15
2529.21.00.00
Containing by weight 97 percent or less of calcium fluoride
Base rate: FreeSource retrieved: 2026-06-15
2529.22.00.00
Containing by weight more than 97 percent of calcium fluoride
Base rate: FreeSource retrieved: 2026-06-15
2529.30.00
Leucite; nepheline and nepheline syenite
Base rate: FreeSource retrieved: 2026-06-15
2530.10.00.00
Vermiculite, perlite and chlorites, unexpanded
Base rate: FreeSource retrieved: 2026-06-15
2530.20.10.00
Kieserite
Base rate: FreeSource retrieved: 2026-06-15
2530.20.20.00
Epsom salts
Base rate: FreeSource retrieved: 2026-06-15
2530.90.10.00
Natural cryolite; natural chiolite
Base rate: FreeSource retrieved: 2026-06-15
2530.90.20.00
Natural micaceous iron oxides
Base rate: 2.9%Source retrieved: 2026-06-15