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HTS 3824

Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included

56 lines US HTS, Harmonized Tariff Schedule of the United States – 2026 HTS Revision 20

CodeDescriptionUnitGeneralSpecialColumn 2Source
3824.10.00.00Prepared binders for foundry molds or coreskg6%Free (A+,AU,BH,CL,CO,D,E, IL,JO, KR,MA,OM,P, PA,PE,S,SG)25%USITC
3824.30.00.00Nonagglomerated metal carbides mixed together or with metallic binderskg3.6%Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)25%USITC
3824.40Prepared additives for cements, mortars or concretesUSITC
3824.40.10.00Containing 5 percent or more by weight of one or more aromatic or modified aromatic substanceskg6.5%Free (A+,AU,BH,CL,CO,D,E, IL,JO,KR,MA,OM,P, PA,PE,S,SG)3.7¢/kg + 60%USITC
3824.40.20.00Consisting wholly of inorganic substanceskgFree25%USITC
3824.40.50.00Otherkg5%Free (A+,AU,BH,CL,CO,D,E, IL,JO,KR,MA,OM,P, PA,PE,S,SG)25%USITC
3824.50.00Nonrefractory mortars and concretesFree20%USITC
3824.50.00.10WettFree20%USITC
3824.50.00.50OthertFree20%USITC
3824.60.00.00Sorbitol other than that of subheading 2905.44kg4.9%Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)50%USITC
Goods specified in subheading note 3 to this chapter
3824.81.00.00Containing oxirane (ethylene oxide)kg5%Free (A+,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG)25%USITC
3824.82Containing polychlorinated biphenyls (PCBs), polychlorinated terphenyls ({PCTs) or polybrominated biphenyls (PBBs)USITC
3824.82.10.00Chlorinated but not otherwise halogenatedkg6.5%Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG)114.5%USITC
3824.82.90.00Otherkg3.7%Free (A+,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG)25%USITC
3824.83.00.00Containing tris(2,3-dibromopropyl) phospatekg5%Free (A+,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG)25%USITC
3824.84.00.00Containing aldrin (ISO), camphechlor (ISO) (toxaphene), chlordane (ISO), chlordecone (ISO), DDT (ISO) (clofenatone (INN)), 1,1,1-trichloro-2,2-bis(p-chlorophenyl)ethane), dieldrin (ISO INN), endosulfan (ISO), endrin (ISO), heptachlor (ISO) or mirex (ISO)kg6.5%Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG)114.5%USITC
3824.85.00.00Containing 1,2,3,4,5,6-hexachlorocyclohexane (HCH (ISO)), including lindane (ISO,INN)kg6.5%Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG)114.5%USITC
3824.86.00.00Containing pentachlorobenzene (ISO) or hexachlorobenzene (ISO)kg6.5%Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG)3.7¢/kg + 60%USITC
3824.87.00.00Containing perfluorooctane sulfonic acid, its salts, perfluorooctane sulfonamides, or perfluorooctane sulfonyl fluoridekg3.7%Free (A+,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG)25%USITC
3824.88.00.00Containing tetra-, penta-, hexa-, hepta-, or octabromodiphenyl etherskg6.5%Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG)3.7¢/kg + 60%USITC
3824.89.00.00Containing short-chain chlorinated paraffinskg6.5%Free (A+,AU,BH,CL,CO,D,E, IL,JO, K,KR,MA,OM,P, PA,PE,S,SG)25%USITC
Other
3824.91.00.00Mixtures and preparations consisting mainly of (5-ethyl-2-methyl-2-oxido3,2-dioxaphosphinan-5-yl)methyl methylphosphonate and bis(5-ethyl-2-methyl-2-oxido-1,3,2-dioxaphosphinan-5-yl)methyl methylphosphonatekg5%Free (A+,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG)25%USITC
3824.92.00.00Polyglycol esters of methylphosphonic acid.kg5%Free (A+,AU,BH,CL,CO,D,E,IL,JO,JP,K,KR,MA,OM,P,PA,PE,S,SG)25%USITC
3824.99OtherUSITC
Cultured crystals (other than optical elements of chapter 90), weighing not less than 2.5 g each
3824.99.11.00In the form of ingotskgFree25%USITC
3824.99.19.00Otherkg6.5%Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)50%USITC
Other
Mixtures containing 5 percent or more by weight of one or more aromatic or modified aromatic substances
3824.99.21.00Consisting wholly of substances found naturally in coal tar, whether obtained from coal tar or other sourcekgFreeFreeUSITC
3824.99.25.00Aqueous mixtures of triphenyl sulfonium chloride, diphenyl (4-phenylthio)phenyl sulfonium chloride and (thiodi-4,1- phenylene)bis(diphenyl sulfonium) dichloridekg6.5%Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG)3.7¢/kg + 60%USITC
3824.99.26.00Benzene, 2,4-diisocyanate-1,3,5-tris(1- methylethyl) homopolymer; 5-Fluoro-2-methyl-1-[[4-(methylsulfinyl)- phenyl]methylene]-1H-indene;Mixtures of dimethyl phthalate, t-butanol, hydrogen peroxide, and sodium salicylate; andMixtures containing derivatives of N-[4-(2- hydroxy-3-phenoxypropoxy)phenyl]- acetamidekgFree3.7¢/kg + 60%USITC
3824.99.29.00Otherkg6.5%Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG)3.7¢/kg + 60%USITC
Mixtures of two or more inorganic compounds
3824.99.31.00Of bismuthkg6.5%Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)35%USITC
3824.99.32.00Of hydrosulfite compounds, of sulfoxylate compounds, or of bothkg6.5%Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)35%USITC
3824.99.33.00Of mercurykg4.2%Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)26.3%USITC
3824.99.34.00Of molybdenumkg2.8%Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)18%USITC
3824.99.35.00Of tungstenkg6.5%Free (A+,AU,BH,CL,CO,D, E,IL, JO,KR,MA,OM,P, PA,PE,S,SG)45.5%USITC
3824.99.36.00Of vanadiumkg6.5%Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)40%USITC
3824.99.39OtherFree25%USITC
3824.99.39.10Of lithium nickel cobalt manganese oxideskgFree25%USITC
3824.99.39.90OtherkgFree25%USITC
3824.99.41Fatty substances of animal or vegetable origin and mixtures thereof4.6%Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)16.5¢/kg + 30%USITC
3824.99.41.40Mixtures of fatty acid esterskg4.6%Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)16.5¢/kg + 30%USITC
3824.99.41.90Otherkg4.6%Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)16.5¢/kg + 30%USITC
Other
3824.99.49.00Mixtures that are in whole or in part of hydrocarbons derived in whole or in part from petroleum, shale oil or natural gaskg6.5%Free (A+,AU,BH,CL,CO,D,E, IL,JO, K,KR,MA,OM,P, PA,PE,S,SG)25%USITC
Mixtures of halogenated hydrocarbons
3824.99.50.00Chlorinated but not otherwise halogenatedkg6.5%Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG)114.5%USITC
3824.99.55.00Otherkg3.7%Free (A+,AU,BH,CL,CO,D, E,IL, JO,K,KR,MA,OM,P, PA,PE,S,SG)25%USITC
Other
3824.99.70.00Mixtures of dibromo neopentyl glycol; Polydibromophenylene oxide; Tetrabromobisphenol-A-carbonate oligomers; and Electroplating chemical and electroless plating solutions and other materials for printed circuit boards, plastics and metal finishingskgFree25%USITC
3824.99.75Naphthenic acids, their water-insoluble salts and their esters3.7%Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)25%USITC
3824.99.75.10Naphthenic acidskg3.7%Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)25%USITC
3824.99.75.50Otherkg3.7%Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)25%USITC
3824.99.93Other5%Free (A+,AU,BH,CL,CO,D,E,IL,JO,JP,K,KR,MA,OM,P,PA,PE,S,SG)25%USITC
Mixtures of acyclic, monohydric, unsubstituted alcohols
3824.99.93.10Containing C11 or lower alcohols onlykg5%Free (A+,AU,BH,CL,CO,D,E,IL,JO,JP,K,KR,MA,OM,P,PA,PE,S,SG)25%USITC
3824.99.93.20Containing C12 or higher alcohols onlykg5%Free (A+,AU,BH,CL,CO,D,E,IL,JO,JP,K,KR,MA,OM,P,PA,PE,S,SG)25%USITC
3824.99.93.30Otherkg5%Free (A+,AU,BH,CL,CO,D,E,IL,JO,JP,K,KR,MA,OM,P,PA,PE,S,SG)25%USITC
3824.99.93.61Mixtures consisting mainly of chemicals containing a phosphorus atom to which is bonded one methyl, ethyl, n-propyl or isopropyl group, but no other carbon atomskg5%Free (A+,AU,BH,CL,CO,D,E,IL,JO,JP,K,KR,MA,OM,P,PA,PE,S,SG)25%USITC
3824.99.93.86Mixtures of a kind containing magnesium used as a desulfurization reagentkg5%Free (A+,AU,BH,CL,CO,D,E,IL,JO,JP,K,KR,MA,OM,P,PA,PE,S,SG)25%USITC
3824.99.93.97Otherkg5%Free (A+,AU,BH,CL,CO,D,E,IL,JO,JP,K,KR,MA,OM,P,PA,PE,S,SG)25%USITC

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Source: USITC, Harmonized Tariff Schedule of the United States – 2026 HTS Revision 20, effective 28 September 2026. Heading 3824 at USITC

Not shown: the additional duties of Chapter 99 (such as Section 301 and Section 232), anti-dumping and countervailing duties, quotas and the legal notes.

This page is general information, not legal advice and not a classification decision. Tariff texts and rates change: check the publisher's current schedule, and ask the customs authority for a binding ruling where the answer matters.

All headings of chapter 38: Miscellaneous chemical products