Cobalt; mattes and other intermediate products of cobalt metallurgy, cobalt and articles thereof, including waste and scrap
6-digit subheadings (3)
Official HS 2022 subheading texts. National tariff schedules subdivide these further (8-10 digit lines) and set the actual duty rates.
Chapter 81 classification notes
Chapter 81 includes conflict minerals (3T — tungsten, tantalum, tin) under Dodd-Frank Section 1502 due-diligence; tantalum-bearing devices need supply-chain documentation.
Frequent misclassification in this chapter
Cobalt powder (8105) vs. cobalt salts (Chapter 28 inorganic chemistry).
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 81
- 8101 — Tungsten (wolfram); articles thereof, including waste and scrap
- 8102 — Molybdenum; articles thereof, including waste and scrap
- 8103 — Tantalum; articles thereof, including waste and scrap
- 8104 — Magnesium; articles thereof, including waste and scrap
- 8106 — Bismuth; articles thereof, including waste and scrap
- 8108 — Titanium; articles thereof, including waste and scrap
- 8109 — Zirconium; articles thereof, including waste and scrap
- 8110 — Antimony; articles thereof, including waste and scrap
- 8111 — Manganese; articles thereof, including waste and scrap
- 8112 — Beryllium, chromium, hafnium, rhenium, thallium, cadmium, germanium, v…
- 8113 — Cermets; articles thereof, including waste and scrap