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HTS heading 3824: Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of

Heading 3824 of the US Harmonized Tariff Schedule covers 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. Below: every rated tariff line in it with its general duty rate, Section 301 China status and exclusions, then a page per line with a free duty calculator.

Official USITC HTS, 2026HTSRev22 · check on hts.usitc.gov

Heading 3824 at a glance

Goods named in this heading (official line texts): Prepared binders for foundry molds or cores, Nonagglomerated metal carbides mixed together or with metallic binders, Containing 5 percent or more by weight of one or more aromatic or modified aromatic substances, Consisting wholly of inorganic substances, Nonrefractory mortars and concretes, Sorbitol other than that of subheading 2905.44, Containing oxirane (ethylene oxide), Chlorinated but not ot.

Subheadings (6-digit)

All tariff lines in heading 3824

LineDescriptionGeneralSection 301 (China)Exclusions
3824.10.00Prepared binders for foundry molds or cores6%List 3 +25%
3824.30.00Nonagglomerated metal carbides mixed together or with metallic binders3.6%List 3 +25%
3824.40.10Containing 5 percent or more by weight of one or more aromatic or modified aromatic substances6.5%List 3 +25%
3824.40.20Consisting wholly of inorganic substancesFreeList 3 +25%
3824.40.50Prepared additives for cements, mortars or concretes: Other5%List 3 +25%
3824.50.00Nonrefractory mortars and concretesFreeList 3 +25%
3824.60.00Sorbitol other than that of subheading 2905.444.9%List 4A +7.5%
3824.81.00Containing oxirane (ethylene oxide)5%List 3 +25%
3824.82.10Chlorinated but not otherwise halogenated6.5%List 3 +25%
3824.82.90Containing polychlorinated biphenyls (PCBs), polychlorinated terphenyls ({PCTs) …: Other3.7%List 3 +25%
3824.83.00Containing tris(2,3-dibromopropyl) phospate5%List 3 +25%
3824.84.00Containing aldrin (ISO), camphechlor (ISO) (toxaphene), chlordane (ISO), chlordecone (ISO), DD…6.5%List 3 +25%
3824.85.00Containing 1,2,3,4,5,6-hexachlorocyclohexane (HCH (ISO)), including lindane (ISO,INN)6.5%List 3 +25%
3824.86.00Containing pentachlorobenzene (ISO) or hexachlorobenzene (ISO)6.5%List 3 +25%
3824.87.00Containing perfluorooctane sulfonic acid, its salts, perfluorooctane sulfonamides, or perfluor…3.7%List 3 +25%
3824.88.00Containing tetra-, penta-, hexa-, hepta-, or octabromodiphenyl ethers6.5%List 3 +25%
3824.89.00Containing short-chain chlorinated paraffins6.5%List 3 +25%
3824.91.00Mixtures and preparations consisting mainly of (5-ethyl-2-methyl-2-oxido3,2-dioxaphosphinan-5-…5%List 3 +25%
3824.92.00Polyglycol esters of methylphosphonic acid.5%List 3 +25%
3824.99.11Cultured crystals (other than optical elements of chapter 90), weighing not less…: In the form…FreeList 3 +25%
3824.99.19Cultured crystals (other than optical elements of chapter 90), weighing not less…: Other6.5%List 3 +25%
3824.99.21Consisting wholly of substances found naturally in coal tar, whether obtained from coal tar or…FreeList 3 +25%
3824.99.25Aqueous mixtures of triphenyl sulfonium chloride, diphenyl (4-phenylthio)phenyl sulfonium chlo…6.5%List 3 +25%
3824.99.26Benzene, 2,4-diisocyanate-1,3,5-tris(1- methylethyl) homopolymer; 5-Fluoro-2-methyl-1-[[4-(met…FreeList 3 +25%
3824.99.29Mixtures containing 5 percent or more by weight of one or more aromatic or modif…: Other6.5%List 3 +25%
3824.99.31Mixtures of two or more inorganic compounds: Of bismuth6.5%List 3 +25%
3824.99.32Of hydrosulfite compounds, of sulfoxylate compounds, or of both6.5%List 3 +25%
3824.99.33Mixtures of two or more inorganic compounds: Of mercury4.2%List 3 +25%
3824.99.34Mixtures of two or more inorganic compounds: Of molybdenum2.8%List 3 +25%
3824.99.35Mixtures of two or more inorganic compounds: Of tungsten6.5%List 3 +25%
3824.99.36Mixtures of two or more inorganic compounds: Of vanadium6.5%List 4A +7.5%
3824.99.39Mixtures of two or more inorganic compounds: OtherFreeList 3 +25%
3824.99.41Fatty substances of animal or vegetable origin and mixtures thereof4.6%List 3 +25%
3824.99.49Mixtures that are in whole or in part of hydrocarbons derived in whole or in part from petrole…6.5%List 3 +25%
3824.99.50Chlorinated but not otherwise halogenated6.5%List 3 +25%
3824.99.55Mixtures of halogenated hydrocarbons: Other3.7%List 3 +25%
3824.99.70Mixtures of dibromo neopentyl glycol; Polydibromophenylene oxide; Tetrabromobisphenol-A-carbon…FreeList 3 +25%
3824.99.75Naphthenic acids, their water-insoluble salts and their esters3.7%List 3 +25%
3824.99.93Other: Other5%List 3 +25%

All of chapter 38 · Chapter 38 rate summary · HTS lookup

General information from the official US Harmonized Tariff Schedule (USITC) and USTR Section 301 notices in HTS Chapter 99; not legal or customs advice. Classification is decided by CBP; confirm with a licensed customs broker or a CBP binding ruling.

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