HSChapter 81
U.S. exports of hafnium and articles thereof, nesoi (HS 811239) totaled $8.4M in July 2026.
Importers of Hafnium and Articles Thereof, NESOI paid $61K in duties in July 2026 — an effective duty rate of 1.1% on $5.7M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: July 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.
21 shipments/mo
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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ImportsExports
Imports
$6.5MYoY · Pro
Exports
$8.4MYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 8112390000 | Hafnium and Articles Thereof, NESOI | $6.5M | 0.93% | 87.57% | $61K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 8112390000 | Hafnium and Articles Thereof, NESOI | $8.4M |
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
Exports · July 2026
destination
Japan and Czech Republic together take 100% of it.
customs district
origin
entry
rate provision · imports
the effective duty rate is 0.93%.