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GOODS ACROSS BORDERS

HS HEADING 3824

Prepared binders for foundry moulds 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

In plain English

This category covers prepared binders for foundry molds or cores, along with various chemical products and preparations from the chemical or allied industries that are not listed elsewhere. Specific items include metal carbides, non-refractory mortars and concretes, and sorbitol that does not fall under other specific classifications. The remaining subcategories group chemical mixtures based on the presence of particular substances, such as oxirane, polychlorinated biphenyls, various pesticides, and specific flame retardants or plasticizers. A final group addresses preparations consisting mainly of specific methylphosphonate compounds or polyglycol esters of methylphosphonic acid.

PARAPHRASE OF THE OFFICIAL HS 2022 TEXTS BELOW — NOT LEGAL ADVICE

6-digit subheadings (17)

Official HS 2022 subheading texts. National tariff schedules subdivide these further (8-10 digit lines) and set the actual duty rates.

3824.10

Binders, prepared; for foundry moulds or cores

3824.30

Metal carbides, non-agglomerated; mixed together or with metallic binders

3824.40

Cements, mortars or concretes; their prepared additives

3824.50

Mortars and concretes; non-refractory

3824.60

Sorbitol; other than that of subheading no. 2905.44

3824.81

Chemical products, mixtures and preparations; containing goods specified in Subheading Note 3 to this Chapter; containing oxirane (ethylene oxide)

3824.82

Chemical products, mixtures and preparations; containing goods specified in Subheading Note 3 to this Chapter; containing polychlorinated biphenyls (PCBs), polychlorinated terphenyls (PCTs) or polybrominated biphenyls (PBBs)

3824.83

Chemical products, mixtures and preparations; containing goods specified in Subheading Note 3 to this Chapter; containing tris(2,3-dibromopropyl) phosphate

3824.84

Chemical products, mixtures and preparations; containing aldrin, camphechlor (toxaphene), chlordane, chlordecone, DDT (chlorfenotane, 1,1,1-trichloro-2,2-bis(p-chlorophenyl)ethane), dieldrin, endosulfan, endrin, heptachlor or mirex

3824.85

Chemical products, mixtures and preparations; containing goods specified in Subheading Note 3 to this Chapter; containing 1,2,3,4,5,6-hexachlorocyclohexane (HCH (ISO)), including lindane (ISO, INN)

3824.86

Chemical products, mixtures and preparations; containing goods specified in Subheading Note 3 to this Chapter; containing pentachlorobenzene (ISO) or hexachlorobenzene (ISO)

3824.87

Chemical products, mixtures and preparations; containing goods specified in Subheading Note 3 to this Chapter; containing perfluorooctane sulphonic acid, its salts, perfluorooctane sulphonamides, or perfluorooctane sulphonyl fluoride

3824.88

Chemical products, mixtures and preparations; containing goods specified in Subheading Note 3 to this Chapter; containing tetra-, penta-, hexa-, hepta- or octabromodiphenyl ethers

3824.89

Chemical products, mixtures and preparations; containing goods specified in Subheading Note 3 to this Chapter; containing short-chain chlorinated paraffins

3824.91

Chemical products, mixtures and preparations; consisting mainly of (5-ethyl-2-methyl-2-oxido-1,3,2-dioxaphosphinan-5-yl)methyl methyl methylphosphonate and bis[(5-ethyl-2-methyl-2-oxido-1,3,2-dioxaphosphinan-5-yl)methyl] methylphosphonate

3824.92

Chemical products, mixtures and preparations; polyglycol esters of methylphosphonic acid

3824.99

Chemical products, mixtures and preparations; n.e.c. heading 3824

Covered items classified under 3824

Chapter 38 classification notes

Chapter 38 includes pesticides (3808) which are subject to FAO Rotterdam Convention prior-informed-consent for many active ingredients. Diagnostic reagents (3822) often dual-classified with Chapter 30 medicines.

Frequent misclassification in this chapter

Insect repellent (DEET) — depending on form, 3808 (commercial pesticide) vs. 3304 (cosmetic preparation).

Classification certainty

The 6-digit level shown here is the internationally harmonised layer. Duty rates attach to national 8-10 digit tariff lines, which differ by country — use the duty calculator for lane estimates. For binding certainty, request a ruling from the destination customs authority.

Binding tariff ruling database

Other headings in Chapter 38

RULES5,339COUNTRIES85ITEMS111CARRIERS28GUIDES46UNIQUE SOURCES645LATEST VERIFICATION2026-07-26MethodologyChangelog