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GOODS ACROSS BORDERS

HS HEADING 3810

Metal-pickling preparations; fluxes etc for soldering, brazing; welding powders, pastes of metal and other materials; preparations used as cores or coatings for welding electrodes or rods

6-digit subheadings (2)

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

3810.10

Pickling preparations for metal surfaces; soldering, brazing or welding powders and pastes consisting of metal and other materials

3810.90

Fluxes and other auxiliary preparations; for soldering, brazing or welding, or preparations used as cores or coatings for welding electrodes or rods

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