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U.S. imports of articles of tantalum (nesoi) (HS 810399) totaled $26.8M in July 2026, traded with 18 countries.
Importers of Articles of Tantalum (NESOI) paid $964K in duties in July 2026 — an effective duty rate of 4.4% on $21.9M in dutiable value, based on actual customs collections rather than the published tariff schedule. Articles of Tantalum (NESOI) imports of $26.8M in July 2026 ran 131% above the year-to-date monthly average of $11.6M.
Last updated: July 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.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
111 shipments/mo
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.
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ImportsExports
Imports
$26.8MYoY · Pro
Exports
$10.4MYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.
Subheading 2 of 4 in heading 8103
Subheading 810399 · $26.8M of $61.7M
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 |
|---|---|---|---|---|---|
| 8103990000 | Articles of Tantalum, NESOI | $26.8M | 3.60% | 81.83% | $964K |
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 | $10.4M |
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.
Imports · July 2026
origin
China and Canada together supply 95% of it.
customs district
destination
entry
rate provision · imports
11.0% enters free of duty; the effective duty rate is 3.60%.