Product classification
HS code for Hafnium metal: 8112.39
Hafnium and articles thereof, wrought, other than powders, waste and scrap.
Classification of hafnium metal under HS 8112.39
Hafnium metal in wrought form is classified under HS code 8112.39. Chapter 81 of the Harmonized Tariff Schedule covers other base metals, cermets, and articles thereof. Heading 8112 specifically includes a group of specialty metals including beryllium, chromium, germanium, vanadium, gallium, hafnium, indium, niobium, rhenium, and thallium. The subheading 8112.39 is reserved for hafnium that has been wrought—meaning it has been worked into shapes like bars, rods, wires, plates, or sheets after the initial smelting or refining process. This classification is based on the chemical identity of the metal and its state of manufacture. Wrought hafnium is often used in specialized industrial applications, such as nuclear control rods or superalloys, due to its high melting point and corrosion resistance. The classification follows General Interpretative Rule 1, as the heading and subheadings specifically name the metal and its physical state. Because it is a base metal not elsewhere specified in Chapters 72 through 80, it falls into the residual metal chapter. The distinction between wrought and unwrought is critical for determining the correct six-digit subheading.
- Covers
- Wrought hafnium bars and rods
- Hafnium metal sheets and plates
- Hafnium wire for industrial use
- Hafnium foil and strips
- Machined hafnium components for non-nuclear applications
- Also under 8112.39
- Framatome's hafnium control rods
- ATI's hafnium mill products
- specialized manufacturers of hafnium components for aerospace
Codes often confused with 8112.39
Common mistake. Hafnium metal is often misclassified under 8112.31, which is reserved for unwrought hafnium and powders. It may also be confused with 8401.30 if the metal is specifically configured as a nuclear fuel element. Furthermore, zirconium products (8109) are sometimes confused with hafnium due to their chemical similarity and frequent occurrence together in nature.
Top exporters and importers of HS 811239 (the code used for hafnium metal), 2025
In 2025, the largest exporter of HS 811239 (the code used for hafnium metal) in UN Comtrade data was China, with 38% of world exports; the largest importer in UN Comtrade data was the United States, with 35% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.
Figures cover everything classified under HS 811239, not only hafnium metal.
Top exporters 2025 · share of world exports
- 1 China $12M 38% of world exports
- 2 United Kingdom $10M 32% of world exports
- 3 Estonia $2.9M 9.4% of world exports
World total: $31M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 United States $32M 35% of world imports
- 2 Germany $30M 33% of world imports
- 3 United Kingdom $19M 21% of world imports
World total: $91M Reported figures on UN Comtrade ↗
How these figures are built
109 countries reported 2025 trade to UN Comtrade in HS 2022, and their own totals are used. Countries that did not report are estimated from what other countries recorded trading with them. Those estimates miss trade with other non-reporting countries, so they can be low, and a non-reporting country can rank higher than shown or be missing from the list. World totals add both and leave out trade between two non-reporting countries. Figures are in current US dollars; reported imports are mostly valued CIF and exports FOB, and exports include re-exports. The UN Comtrade links show the underlying records; they can also list a few reporters left out here (regional groups and older HS editions).
Source: UN Comtrade (United Nations Statistics Division), 2025 annual data.
Brazil NCM code for hafnium metal
Brazil classifies hafnium metal under NCM 8112.39.00: HS 8112.39 with 00 added.
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about hafnium metal
What is the HS code for Hafnium metal?
The HS code for Hafnium metal is 811239 (Hafnium and articles thereof; wrought, other than powders, waste and scrap). Wrought hafnium metal is classified under HS code 8112.39.
How do I classify Hafnium metal for customs?
Hafnium metal is classified under HS code 811239 — Hafnium and articles thereof; wrought, other than powders, waste and scrap. This is a 6-digit subheading level code.
Is hafnium oxide classified here?
No, hafnium oxide is a chemical compound and is classified under Chapter 28, specifically HS code 2825.90, rather than the metal category.
Which countries are the top exporters of hafnium metal (HS 811239)?
In 2025, the top exporters of HS 811239 (the code used for hafnium metal) in UN Comtrade data were China ($12M, 38% of world exports), the United Kingdom ($10M) and Estonia ($2.9M). World exports came to about $31M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Which countries are the top importers of hafnium metal (HS 811239)?
In 2025, the top importers of HS 811239 (the code used for hafnium metal) in UN Comtrade data were the United States ($32M, 35% of world imports), Germany ($30M) and the United Kingdom ($19M). World imports came to about $91M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Is the HS code for Hafnium metal the same in all countries?
The base HS code 811239 for Hafnium metal is internationally standardized for the first 6 digits across 200+ countries. Individual countries may add additional digits for national tariff lines and specific classifications.
What is the NCM code for hafnium metal in Brazil?
In Brazil, hafnium metal (HS 811239) is classified under NCM 8112.39.00.