Niobium

CAS 7440-03-1

Used in 5 industrial sectors tracked by the EPA.

Nb92.9 g/mol

no molecular structure to draw

US production2.8M lb

Import value, 2024$273M

Import volume6.6M lb

Import dependency70%

Top sourceBrazil 36%

Production is reported production, not a complete census of factories. Production reporting year: 2023. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

Where It Comes From

Customs basis: HS 811292 · narrow

EPA reports by year

2023: US production 2.8M lb · Imports 6.6M lb
2019: US production Confidential · Imports Confidential

These shares come from HS customs code 811292, which covers 5 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries

Country of origin for US imports, from Census customs data (2024).

BR 36%BrazilCN 19%ChinaJP 7%JapanCL 7%ChileDE 6%Germany

Hong Kong
Italy
Russia
Singapore
Slovakia
Israel
Finland
Kazakhstan
Austria
Malaysia
Morocco
Sweden
Poland
Switzerland
Mexico

EPA-registered manufacturers (5)

Companies that report making or importing this chemical to the EPA. Registration is US-centric and does not indicate import origin.

Ati

Cannon Muskegon

Global Advanced Metals Usa

Minerals Technologies

Reading Alloys

Domestic parents -- activity not disclosed (1)

EPA records name a US company for this chemical but do not disclose whether the company made it here or imported it.

Glencore

EPA-registered importers (11)

Companies that report making or importing this chemical to the EPA. Registration is US-centric and does not indicate import origin.

Jfe Steel · JP Japan

Jsw Steel · IN India

Acero Junction Holdings

Carpenter Technology

Chemalloy

Show all 11

Cleveland Cliffs Burns Harbor

Cleveland Cliffs Steel

Cleveland-Cliffs

Materion

Nucor

Steel Dynamics

Why It Matters

Sectors

EnergyWaterElectronicsTransportationMetals & Mining

Downstream UsesNot recorded

FDA Shortage Status

Whether any manufacturer currently reports this drug as in shortage on the FDA Drug Shortages database. "Active Shortage" means at least one presentation has status "current."

No FDA shortage records

Industrial Uses

Used in 6 sectors as 3 functional roles.

•Alloys in Primary Metal Manufacturing (31%)Processing—incorporation into article
•Alloys in Fabricated Metal Product Manufacturing (0%)Processing—incorporation into article
•Alloys in Utilities (17%)Processing—incorporation into article
•Alloys in Computer and Electronic Product Manufacturing (2%)Processing—incorporation into article
•Alloys in Transportation Equipment Manufacturing (3%)Processing—incorporation into article
•Intermediate in Primary Metal Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
•Conductive agent in Electrical Equipment, Appliance, and Component Manufacturing (100%)Processing—incorporation into article

Chemical Identity

CAS7440-03-1

PubChem CID23936

DTXSIDDTXSID4052479

FormulaNb

Mol. Weight92.90637 g/mol

SMILES[Nb]

Data Sources

EPA CompTox (DSSTox) · DTXSID4052479Retrieved 2026-04-06
PubChem · compound 23936Retrieved 2026-04-06
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
FDA National Drug Code directoryRetrieved 2026-04-07
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

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Brief citations

Niobium (CAS 7440-03-1) https://chemicalindependence.com/chemical/7440-03-1/ EPA CompTox (DSSTox): DTXSID4052479. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID4052479 PubChem: 23936. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/23936 EPA Chemical Data Reporting: 7440-03-1. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting FDA National Drug Code directory: CAS 7440-03-1. Retrieved 2026-04-07. https://open.fda.gov/data/ndc/ US Census international trade: HS 811292 for CAS 7440-03-1. Reporting year: 2024. https://usatrade.census.gov/