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HSChapter 81
U.S. imports of hafnium and articles thereof, nesoi (HS 811239) totaled $15.0M in April 2026, traded with 2 countries.
Importers of Hafnium and Articles Thereof, NESOI paid $47K in duties in April 2026 — an effective duty rate of 0.3% on $15.0M in dutiable value, based on actual customs collections rather than the published tariff schedule. Hafnium and Articles Thereof, NESOI imports of $15.0M in April 2026 ran 231% above the year-to-date monthly average of $4.5M.
Last updated: April 2026 dataWrought hafnium articles not elsewhere specified (8112390000) encompass machined components such as control rod segments, sputtering targets for high-k dielectric deposition, and precision parts for aerospace thermal-barrier coatings. Germany and China are the leading US import sources for this heading, with Taiwan also a notable supplier — reflecting the concentration of semiconductor equipment manufacturing and specialty metals fabrication in those markets. The small global production base for hafnium articles means supply disruptions can have outsized effects on nuclear and advanced-chip manufacturing schedules.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Classification follows the predominant metal by weight. If hafnium exceeds zirconium by weight, the article falls under the hafnium heading (811239); if zirconium predominates, it belongs under the zirconium heading (811291 or 811299). Because the two metals are chemically similar and often alloyed, a certified composition analysis is essential to support the correct classification.
Global hafnium production is tightly linked to zirconium output from a handful of major producers, so supply is relatively inelastic. Lead times for machined hafnium components can extend to several months, particularly for nuclear-grade parts requiring extensive quality certification. Buyers in the semiconductor and nuclear sectors typically maintain strategic inventory buffers and qualify multiple suppliers to manage concentration risk.
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Monthly import values over time
| Country | Imports | Exports | Balance |
|---|---|---|---|
| GERMANY | $14.9M | -- | -$14.9M |
| CHINA | $119K | -- | -$119K |
| JAPAN | -- | $86K | +$86K |
| UNITED KINGDOM | -- | $11K | +$11K |
| CZECH REPUBLIC | -- | -- | -- |
HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 8112390000 | HAFNIUM AND ARTICLES THEREOF, NESOI | $15.0M | 0.31% | $47K |
HAFNIUM AND ARTICLES THEREOF, NESOI
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 8112390000 | HAFNIUM AND ARTICLES THEREOF, NESOI | $97K |
HAFNIUM AND ARTICLES THEREOF, NESOI
721 kg
COBALT, UNWROUGHT, PWDRS, MATTES ETC
HS 810520
TITANIUM AND ARTICLES THEREOF NESOI
HS 810890
CERMETS AND ARTICLES THEREOF, INC WASTE AND SCRAP
HS 811300
TUNGSTEN WASTE AND SCRAP
HS 810197
UNWROUGHT TITANIUM; POWDERS
HS 810820
GA, HF, INDIUM, NIOBIUM, RHENIUM & ARTI,WAST/SCRP
HS 811292
| State | Imports | Exports | Balance |
|---|---|---|---|
| California | $14.9M | -- | -$14.9M |
| New York | $108K | -- | -$108K |
| Connecticut | -- | $86K | +$86K |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| HOUSTON INTERCONTINENTAL AIRPORT, TX | $14.9M | -- | -$14.9M |
| JFK INTERNATIONAL AIRPORT, NY | $108K | -- | -$108K |
| CLEVELAND, OH | -- | $86K | +$86K |