Chapter 38: Miscellaneous chemical products

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

57 numbered lines under heading 3824, including 48 10-digit statistical lines. The first six digits are the international HS subheading; the general column is the normal US duty rate.

HTS heading 3824
HTS codeDescriptionUnitGeneralSpecialColumn 2
3824Prepared 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:
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%
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%
3824.40Prepared additives for cements, mortars or concretes:
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%
3824.40.20.00Consisting wholly of inorganic substanceskgFree25%
3824.40.50.00OtherNote: See 9903.90.08.kg5%Free (A+,AU,BH,CL,CO,D,E, IL,JO,KR,MA,OM,P, PA,PE,S,SG)25%
3824.50.00Nonrefractory mortars and concretesFree20%
3824.50.00.10Wett
3824.50.00.50Othert
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%
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%
3824.82Containing polychlorinated biphenyls (PCBs), polychlorinated terphenyls ({PCTs) or polybrominated biphenyls (PBBs):
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%
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%
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%
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%
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%
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%
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%
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%
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%
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%
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%
3824.99Other:
Cultured crystals (other than optical elements of chapter 90), weighing not less than 2.5 g each:
3824.99.11.00In the form of ingotsNote: See 9903.90.08.kgFree25%
3824.99.19.00Otherkg6.5%Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)50%
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 sourcekgFreeFree
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%
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%
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%
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%
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%
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%
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%
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%
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%
3824.99.39OtherFree25%
3824.99.39.10Of lithium nickel cobalt manganese oxideskg
3824.99.39.90Otherkg
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%
3824.99.41.40Mixtures of fatty acid esterskg
3824.99.41.90Otherkg
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%
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%
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%
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%
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%
3824.99.75.10Naphthenic acidskg
3824.99.75.50Otherkg
3824.99.93Other5%Free (A+,AU,BH,CL,CO,D,E,IL,JO,JP,K,KR,MA,OM,P,PA,PE,S,SG)25%
Mixtures of acyclic, monohydric, unsubstituted alcohols:
3824.99.93.10Containing C11 or lower alcohols onlykg
3824.99.93.20Containing C12 or higher alcohols onlykg
3824.99.93.30Otherkg
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 atomskg
3824.99.93.86Mixtures of a kind containing magnesium used as a desulfurization reagentkg
3824.99.93.97Otherkg

Statistical (10-digit) lines without a rate use the rate of the 8-digit line above them. Additional duties such as Section 301 and Section 232 may apply; check them with the tariff checker.

Source: Harmonized Tariff Schedule of the United States, 2026 HTS Revision 20 (effective 2026-09-28), U.S. International Trade Commission (hts.usitc.gov), imported 2026-10-07. Reference only; not legal or customs advice or a binding classification. Additional duties under Chapter 99 may apply. ShipWave is not affiliated with the USITC or U.S. Customs and Border Protection.