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Harmonized Tariff Schedule (2025 HTS Revision 16 (07/01/2025))

Search Key:calcium sulfate

Heading Duty(general) Duty(china) Article Description Compare Code
2520 Gypsum; anhydrite; plasters (consisting of calcined gypsum or calcium sulfate) whether or not colored, with or without small quantities of accelerators or retarders: --
3407 Modeling pastes, including those put up for children's amusement; preparations known as "dental wax" or as "dental impression compounds", put up in sets, in packings for retail sale or in plates, horseshoe shapes, sticks or similar forms; other preparations for use in dentistry, with a basis of plaster (of calcined gypsum or calcium sulfate): vs-2520
2510 Natural calcium phosphates, natural aluminum calcium phosphates and phosphatic chalk: vs-3407
2511 Natural barium sulfate (barytes); natural barium carbonate (witherite), whether or not calcined, other than barium oxide of heading 2816: vs-2510
2522 Quicklime, slaked lime and hydraulic lime, other than calcium oxide and hydroxide of heading 2825: vs-2511
2523 Portland cement, aluminous cement, slag cement, supersulfate cement and similar hydraulic cements, whether or not colored or in the form of clinkers: vs-2522
2528.00.00.10 Free Natural calcium borates vs-2523
2529.21.00.00 Free Containing by weight 97 percent or less of calcium fluoride vs-2528000010
2530.20 Kieserite, epsom salts (natural magnesium sulfates): vs-2529210000
2805.12.00.00 3% Calcium vs-253020
2827.20.00.00 Free Calcium chloride
Other chlorides:
vs-2805120000
2828 Hypochlorites; commercial calcium hypochlorite; chlorites; hypobromites: vs-2827200000
2832 Sulfites; thiosulfates: vs-2828
2833 Sulfates; alums; peroxosulfates (persulfates):
Sodium sulfates:
vs-2832
2834.29.10.00 Free Of calcium vs-2833
2835.25.00.00 Free Calcium hydrogenorthophosphate ("Dicalcium phosphate") vs-2834291000
2836.50.00.00 Free Calcium carbonate vs-2835250000
2837.19.01.15 Free Calcium cyanide vs-2836500000
2841.80.00.20 5.5% Of calcium vs-2837190115
2849.10.00.00 1.8% Of calcium vs-2841800020