Section VI · Miscellaneous chemical products
3824.99
Other:
Chapter
Miscellaneous chemical products
Heading
The product family within the chapter
Subheading
The specific good, identical worldwide
The first six digits are the same in every country that uses the Harmonized System. The United States adds two more for the tariff rate and, often, two more for statistics — which is why the rates below are listed against 8- and 10-digit numbers rather than against this code.
How the schedule reaches this code
- 38Miscellaneous chemical products
- 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:
- Other:
- Other:
Published US duty rates
Duty is set at the 8- or 10-digit line, not at this 6-digit subheading, so more than one rate can sit under this code.
- 3824.99.11.00In the form of ingotskg
- General
- Free
- Special (FTA)
- —
- Column 2
- 25%
No preferential rate published.
Countries without normal trade relations.
- 3824.99.19.00Otherkg
- General
- 6.5%
- Special (FTA)
- Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)
- Column 2
- 50%
Only if the goods qualify under one of these programs.
Countries without normal trade relations.
- 3824.99.21.00Consisting wholly of substances found naturally in coal tar, whether obtained from coal tar or other sourcekg
- General
- Free
- Special (FTA)
- —
- Column 2
- Free
No preferential rate published.
Countries without normal trade relations.
- 3824.99.25.00Aqueous mixtures of triphenyl sulfonium chloride, diphenyl (4-phenylthio)phenyl sulfonium chloride and (thiodi-4,1- phenylene)bis(diphenyl sulfonium) dichloridekg
- General
- 6.5%
- Special (FTA)
- Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG)
- Column 2
- 3.7¢/kg + 60%
Only if the goods qualify under one of these programs.
Countries without normal trade relations.
- 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]- acetamidekg
- General
- Free
- Special (FTA)
- —
- Column 2
- 3.7¢/kg + 60%
No preferential rate published.
Countries without normal trade relations.
- 3824.99.29.00Otherkg
- General
- 6.5%
- Special (FTA)
- Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG)
- Column 2
- 3.7¢/kg + 60%
Only if the goods qualify under one of these programs.
Countries without normal trade relations.
- 3824.99.31.00Of bismuthkg
- General
- 6.5%
- Special (FTA)
- Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)
- Column 2
- 35%
Only if the goods qualify under one of these programs.
Countries without normal trade relations.
- 3824.99.32.00Of hydrosulfite compounds, of sulfoxylate compounds, or of bothkg
- General
- 6.5%
- Special (FTA)
- Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)
- Column 2
- 35%
Only if the goods qualify under one of these programs.
Countries without normal trade relations.
- 3824.99.33.00Of mercurykg
- General
- 4.2%
- Special (FTA)
- Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)
- Column 2
- 26.3%
Only if the goods qualify under one of these programs.
Countries without normal trade relations.
- 3824.99.34.00Of molybdenumkg
- General
- 2.8%
- Special (FTA)
- Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)
- Column 2
- 18%
Only if the goods qualify under one of these programs.
Countries without normal trade relations.
- 3824.99.35.00Of tungstenkg
- General
- 6.5%
- Special (FTA)
- Free (A+,AU,BH,CL,CO,D, E,IL, JO,KR,MA,OM,P, PA,PE,S,SG)
- Column 2
- 45.5%
Only if the goods qualify under one of these programs.
Countries without normal trade relations.
- 3824.99.36.00Of vanadiumkg
- General
- 6.5%
- Special (FTA)
- Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)
- Column 2
- 40%
Only if the goods qualify under one of these programs.
Countries without normal trade relations.
- 3824.99.39Other
- General
- Free
- Special (FTA)
- —
- Column 2
- 25%
No preferential rate published.
Countries without normal trade relations.
- 3824.99.41Fatty substances of animal or vegetable origin and mixtures thereof
- General
- 4.6%
- Special (FTA)
- Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)
- Column 2
- 16.5¢/kg + 30%
Only if the goods qualify under one of these programs.
Countries without normal trade relations.
- 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 gaskg
- General
- 6.5%
- Special (FTA)
- Free (A+,AU,BH,CL,CO,D,E, IL,JO, K,KR,MA,OM,P, PA,PE,S,SG)
- Column 2
- 25%
Only if the goods qualify under one of these programs.
Countries without normal trade relations.
- 3824.99.50.00Chlorinated but not otherwise halogenatedkg
- General
- 6.5%
- Special (FTA)
- Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG)
- Column 2
- 114.5%
Only if the goods qualify under one of these programs.
Countries without normal trade relations.
- 3824.99.55.00Otherkg
- General
- 3.7%
- Special (FTA)
- Free (A+,AU,BH,CL,CO,D, E,IL, JO,K,KR,MA,OM,P, PA,PE,S,SG)
- Column 2
- 25%
Only if the goods qualify under one of these programs.
Countries without normal trade relations.
- 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 finishingskg
- General
- Free
- Special (FTA)
- —
- Column 2
- 25%
No preferential rate published.
Countries without normal trade relations.
- 3824.99.75Naphthenic acids, their water-insoluble salts and their esters
- General
- 3.7%
- Special (FTA)
- Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)
- Column 2
- 25%
Only if the goods qualify under one of these programs.
Countries without normal trade relations.
- 3824.99.93Other
- General
- 5%
- Special (FTA)
- Free (A+,AU,BH,CL,CO,D,E,IL,JO,JP,K,KR,MA,OM,P,PA,PE,S,SG)
- Column 2
- 25%
Only if the goods qualify under one of these programs.
Countries without normal trade relations.
Schedule footnotes
- See 9903.88.03.
- See 9903.90.08.
- See 9903.88.15.
A reference to Chapter 99 means an additional action — a Section 232 or 301 measure, an exclusion, or a quota — applies on top of the rate above.
This is the listed rate. Antidumping and countervailing duty orders, Chapter 99 actions and preference qualification all change what is actually collected, and classification is a judgement about your goods. Verify with your licensed customs broker before you file.
Other subheadings in heading 3824
- 3824.10Prepared binders for foundry molds or cores
- 3824.30Nonagglomerated metal carbides mixed together or with metallic binders
- 3824.40Prepared additives for cements, mortars or concretes:
- 3824.50Nonrefractory mortars and concretes
- 3824.60Sorbitol other than that of subheading 2905.44
- 3824.81Containing oxirane (ethylene oxide)
- 3824.82Containing polychlorinated biphenyls (PCBs), polychlorinated terphenyls ({PCTs) or polybrominated biphenyls (PBBs):
- 3824.83Containing tris(2,3-dibromopropyl) phospate
- 3824.84Containing 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)
- 3824.85Containing 1,2,3,4,5,6-hexachlorocyclohexane (HCH (ISO)), including lindane (ISO,INN)
- 3824.86Containing pentachlorobenzene (ISO) or hexachlorobenzene (ISO)
- 3824.87Containing perfluorooctane sulfonic acid, its salts, perfluorooctane sulfonamides, or perfluorooctane sulfonyl fluoride
- 3824.88Containing tetra-, penta-, hexa-, hepta-, or octabromodiphenyl ethers
- 3824.89Containing short-chain chlorinated paraffins
- 3824.91Mixtures 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 methylphosphonate
- 3824.92Polyglycol esters of methylphosphonic acid.
Source: U.S. International Trade Commission (USITC) — 2026 HTS Revision 12, released 2026-07-21, published at hts.usitc.gov. A U.S. Government work in the public domain.