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HSChapter 81
U.S. imports of unwrought zirconium powder (low hafnium grade) (HS 810921) totaled $6.8M in April 2026, traded with 3 countries.
Importers of Unwrought Zirconium Powder (Low Hafnium Grade) paid $960K in duties in April 2026 — an effective duty rate of 14% on $6.8M in dutiable value, based on actual customs collections rather than the published tariff schedule. Unwrought Zirconium Powder (Low Hafnium Grade) imports of $6.8M in April 2026 ran 109% above the year-to-date monthly average of $3.2M.
Last updated: April 2026 dataNuclear-grade zirconium powder — defined by a hafnium-to-zirconium ratio of less than 1:500 by weight — is a tightly specified material used primarily in nuclear fuel cladding and reactor components, where hafnium's high neutron-absorption cross-section must be minimized. China is the leading US supplier of this grade, and imports from China are subject to Section 301 tariffs; France and Germany are also significant sources. Because this material can intersect with nuclear nonproliferation controls, importers should confirm whether any applicable export licensing or end-use certificate requirements were satisfied in the country of export before entry.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
The 1:500 hafnium-to-zirconium threshold is the defining split between nuclear-grade (low-hafnium) and commercial-grade zirconium in the US tariff schedule. Nuclear-grade material with hafnium below this threshold is classified under 8109210000, while zirconium powders not meeting this specification fall under the NESOI heading 8109290000. Chemical analysis documentation from the producer is essential to support the correct classification at entry.
Low-hafnium zirconium powder intended for nuclear applications may be subject to Nuclear Regulatory Commission (NRC) or Department of Energy oversight depending on the specific end use and destination. Importers should verify whether the foreign supplier obtained any required export authorization and whether the US end user holds the appropriate NRC license. Consulting a licensed customs broker with experience in nuclear materials is strongly advisable.
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Monthly import values over time
| Country | Imports | Exports | Balance |
|---|---|---|---|
| CHINA | $6.8M | -- | -$6.8M |
| FRANCE | -- | $3.2M | +$3.2M |
| SWEDEN | -- | $1.2M | +$1.2M |
| UNITED KINGDOM | -- | $446K | +$446K |
| NORWAY | -- | $99K | +$99K |
HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 8109210000 | UNWROUGHT ZR POWDER LT 1 PT HF TO 500 PTS ZR BY WT | $6.8M | 14.20% | $960K |
UNWROUGHT ZR POWDER LT 1 PT HF TO 500 PTS ZR BY WT
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 8109210000 | UNWROUGHT ZR POWDER LT 1 PT HF TO 500 PTS ZR BY WT | $5.0M |
UNWROUGHT ZR POWDER LT 1 PT HF TO 500 PTS ZR BY WT
52.2K 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 |
|---|---|---|---|
| Utah | $6.8M | $2.0M | -$4.7M |
| Oregon | -- | $2.9M | +$2.9M |
| Rhode Island | -- | $16K | +$16K |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| OAKLAND, CA | $6.8M | -- | -$6.8M |
| WILMINGTON, NC | -- | $2.8M | +$2.8M |
| CHARLESTON, SC | -- | $1.6M | +$1.6M |