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HSChapter 81
U.S. imports of unwrought hafnium, hafnium powders, waste and scrap (HS 811231) totaled $18.1M in April 2026, traded with 5 countries.
Importers of Unwrought Hafnium, Hafnium Powders, Waste and Scrap paid $1.6M in duties in April 2026 — an effective duty rate of 9.2% on $17.2M in dutiable value, based on actual customs collections rather than the published tariff schedule. Unwrought Hafnium, Hafnium Powders, Waste and Scrap imports of $18.1M in April 2026 ran 51% above the year-to-date monthly average of $12.0M.
Last updated: April 2026 dataHafnium in unwrought form and powder — entered under 8112310000 — is a rare, dense metal extracted as a co-product of zirconium refining and valued for its exceptional neutron-absorption cross-section in nuclear reactor control rods and its high-k dielectric properties in advanced semiconductor gate oxides. Germany is the leading US import source, followed by Thailand and China, a supply pattern shaped by the limited number of facilities worldwide capable of separating hafnium from zirconium to nuclear-grade purity. Given hafnium's dual-use sensitivity in nuclear applications, exporters in source countries may require government export authorization.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Hafnium is chemically nearly identical to zirconium and occurs with it in nature, requiring costly fractional distillation or liquid-liquid extraction to separate them. Germany hosts advanced zirconium-hafnium separation and refining capacity serving the nuclear and semiconductor industries, which explains its prominence as a supplier of high-purity hafnium to the US market.
Hafnium is a dual-use material controlled under the Nuclear Suppliers Group guidelines and is subject to export licensing requirements in many countries. US importers should confirm that the exporting country's government has issued any required export authorization and that the shipment is accompanied by appropriate end-use certificates. CBP may request these documents at entry for nuclear-grade material.
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Monthly import values over time
HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 8112310000 | UNWROUGHT HAFNIUM INCL POWDERS | $18.1M | 9.18% | $1.6M |
UNWROUGHT HAFNIUM INCL POWDERS
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 8112310000 | UNWROUGHT HAFNIUM INCL POWDERS | $662K |
UNWROUGHT HAFNIUM INCL POWDERS
50 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 |
|---|---|---|---|
| Michigan | $7.2M | -- | -$7.2M |
| Ohio | $3.2M | -- | -$3.2M |
| North Carolina | $2.8M | -- | -$2.8M |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| MINNEAPOLIS-ST. PAUL, MN | $7.2M | -- | -$7.2M |
| DETROIT, MI | $3.2M | -- | -$3.2M |
| ORLANDO, FL | $2.8M | -- | -$2.8M |