U.S. exports of Articles of Tantalum (NESOI) (HS 810399) totaled $12.9M in August 2026.
Importers of Articles of Tantalum (NESOI) paid $197K in duties in August 2026, an average duty rate of 2.25% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Articles of Tantalum (NESOI) imports of $8.0M in August 2026 ran 28% below the year-to-date monthly average of $11.1M.
Last updated: August 2026 dataFinished tantalum articles not covered by more specific provisions — including chemical process equipment linings, medical implant components, and precision-machined parts — enter under 8103990000, the residual catch-all for tantalum manufactures. China leads supply, with Canada and Austria also significant; Kazakhstan's presence reflects upstream tantalum processing capacity that extends into fabricated articles. As with other NESOI provisions, the classification is valid only when no more specific heading applies, making a thorough GRI analysis essential for complex or multi-material tantalum assemblies.
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97 import shipments a month
Common imports include tantalum-lined chemical reactor components and heat exchangers (valued for corrosion resistance in acid environments), tantalum wire mesh and sheet fabrications, and precision-machined parts for semiconductor equipment. Medical-grade tantalum implant components also appear under this heading when not more specifically classified elsewhere.
The NESOI designation means 8103990000 applies only when no other heading more specifically describes the article. Tantalum parts identifiable as components of a specific machine, instrument, or apparatus are generally classified with that equipment under the relevant chapter. Importers should conduct a GRI analysis — and consult a licensed customs broker for complex assemblies — to determine whether the tantalum article or the host equipment heading takes precedence.
Subheading 2 of 4 in heading 8103
Subheading 810399 · $12.9M of $45.1M
Trade Directory
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ImportsExports
Imports
$8.0MYoY · free account
Exports
$12.9MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $102.5M of Articles of Tantalum (NESOI) and exported $90.2M.
Through August 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 | Imports for consumption | Average duty rate | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 8103990000 | Articles of Tantalum, NESOI | $8.7M | 2.25% | 45.86% | $197K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 8103990000 | Articles of Tantalum, NESOI | $12.9M |
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 · August 2026
destination
South Korea and China together take 64% of it.
customs district
origin
entry
rate provision · imports
57.0% enters free of duty; duty collected equals 2.25% of imports for consumption.