Reaction initiators, reaction accelerators and catalytic preparations n.e.c. or included
6-digit subheadings (4)
Official HS 2022 subheading texts. National tariff schedules subdivide these further (8-10 digit lines) and set the actual duty rates.
Catalysts, supported; reaction initiators, reaction accelerators and catalytic preparations, with nickel or nickel compounds as the active substance, n.e.c. or included
Catalysts, supported; reaction initiators, reaction accelerators and catalytic preparations, with precious metal or precious metal compounds as the active substance, n.e.c. or included
Catalysts, supported; reaction initiators, reaction accelerators and catalytic preparations, with an active substance other than nickel or precious metals or their compounds, n.e.c. or included
Reaction initiators, reaction accelerators and catalytic preparations, unsupported, n.e.c. or included
Chapter 38 classification notes
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 databaseOther headings in Chapter 38
- 3801 — Artificial graphite; colloidal or semi-colloidal graphite; preparation…
- 3802 — Activated carbon; activated natural mineral products; animal black, in…
- 3803 — Tall oil, whether or not refined
- 3804 — Residual lyes from the manufacture of wood pulp, whether or not concen…
- 3805 — Gum, wood or sulphate turpentine, other terpenic oils; crude dipentene…
- 3806 — Rosin and resin acids and derivatives thereof; rosin spirit and rosin …
- 3807 — Wood tar; wood tar oils; wood creosote; wood naphtha; vegetable pitch;…
- 3808 — Insecticides, rodenticides, fungicides, herbicides, anti-sprouting pro…
- 3809 — Finishing agents, dye carriers to accelerate the dyeing, fixing of dye…
- 3810 — Metal-pickling preparations; fluxes etc for soldering, brazing; weldin…
- 3811 — Anti-knock preparations, oxidation and gum inhibitors, viscosity impro…
- 3812 — Prepared rubber accelerators; compound plasticisers for rubber or plas…
- 3813 — Preparations and charges for fire extinguishers; charged fire-extingui…
- 3814 — Organic composite solvents and thinners, not elsewhere specified or in…
- 3816 — Refractory cements, mortars, concretes and similar compositions, inclu…
- 3817 — Mixed alkylbenzenes and mixed alkylnaphthalenes, other than those of h…
- 3818 — Chemical elements doped for use in electronics, in the form of discs, …
- 3819 — Hydraulic brake fluids and other prepared liquids for hydraulic transm…
- 3820 — Anti-freezing preparations and prepared de-icing fluids
- 3821 — Prepared culture media for the development or maintenance of micro-org…
- 3822 — Reagents; diagnostic or laboratory reagents on a backing, prepared dia…
- 3823 — Industrial monocarboxylic fatty acids; acid oils from refining; indust…
- 3824 — Prepared binders for foundry moulds or cores; chemical products and pr…
- 3825 — Residual products of the chemical or allied industries, not elsewhere …
- 3826 — Biodiesel and mixtures thereof; not containing or containing less than…
- 3827 — Mixtures containing halogenated derivatives of methane, ethane or prop…