HTS code lookup / Chapter 25
SALT; SULFUR; EARTHS AND STONE; PLASTERING MATERIALS, LIME AND CEMENT
79 classifiable HTS lines in Chapter 25.
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 water2501.00.00.00
Unroasted iron pyrites2502.00.00.00
Sulfur of all kinds, other than sublimed sulfur, precipitated sulfur and colloidal sulfur2503.00.00
Crystalline flake (not including flake dust)2504.10.10.00
Other2504.10.50.00
Other2504.90.00.00
Sand containing by weight 95 percent or more of silica and not more than 0.6 percent of oxide of iron2505.10.10.00
Other2505.10.50.00
Other2505.90.00.00
Quartz2506.10.00
Quartzite2506.20.00
Kaolin and other kaolinic clays, whether or not calcined2507.00.00.00
Bentonite2508.10.00.00
Fire-clay2508.30.00.00
Other clays2508.40.01
Andalusite, kyanite and sillimanite2508.50.00.00
Mullite2508.60.00.00
Chamotte or dinas earth2508.70.00.00
Crude2509.00.10.00
Other2509.00.20.00
Unground2510.10.00.00
Ground2510.20.00.00
Ground2511.10.10.00
Other2511.10.50.00
Natural barium carbonate (witherite)2511.20.00.00
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 less2512.00.00.00
Pumice stone2513.10.00
Crude or in irregular pieces2513.20.10.00
Other2513.20.90.00
Slate, whether or not roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape2514.00.00.00
Crude or roughly trimmed2515.11.00.00
Marble2515.12.10.00
Travertine2515.12.20.00
Other calcareous monumental or building stone; alabaster2515.20.00.00
Crude or roughly trimmed2516.11.00.00
Merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape2516.12.00
Crude or roughly trimmed2516.20.10.00
Merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape2516.20.20.00
Other monumental or building stone2516.90.00
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-treated2517.10.00
Macadam of slag, dross or similar industrial waste, whether or not incorporating the materials cited in subheading 2517.102517.20.00.00
Tarred macadam2517.30.00.00
Of marble2517.41.00.00
Other2517.49.00.00
Dolomite, not calcined or sintered2518.10.00.00
Calcined or sintered dolomite2518.20.00.00
Natural magnesium carbonate (magnesite)2519.10.00.00
Fused magnesia and dead-burned (sintered) magnesia2519.90.10.00
Caustic calcined magnesite2519.90.20.00
Other2519.90.50.00
Gypsum; anhydrite2520.10.00.00
Plasters2520.20.00.00
Limestone flux; limestone and other calcareous stone, of a kind used for the manufacture of lime or cement2521.00.00.00
Quicklime2522.10.00.00
Slaked lime2522.20.00.00
Hydraulic lime2522.30.00.00
Cement clinkers2523.10.00.00
White cement, whether or not artificially colored2523.21.00.00
Other2523.29.00.00
Aluminous cement2523.30.00.00
Other hydraulic cements2523.90.00.00
Crocidolite (Blue)2524.10.00.00
Other2524.90.00
Crude mica and mica rifted into sheets or splittings2525.10.00
Mica powder2525.20.00.00
Mica waste2525.30.00.00
Not crushed, not powdered2526.10.00.00
Crushed or powdered2526.20.00.00
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 H<sub>3</sub>BO<sub>3</sub> calculated on the dry weight2528.00.00
Feldspar2529.10.00.00
Containing by weight 97 percent or less of calcium fluoride2529.21.00.00
Containing by weight more than 97 percent of calcium fluoride2529.22.00.00
Leucite; nepheline and nepheline syenite2529.30.00
Vermiculite, perlite and chlorites, unexpanded2530.10.00.00
Kieserite2530.20.10.00
Epsom salts2530.20.20.00
Natural cryolite; natural chiolite2530.90.10.00
Natural micaceous iron oxides2530.90.20.00
Other2530.90.80