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Official data Source: US Census Bureau international trade data Data through August 2026 · updated monthly

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HS 8540.91

Parts of cathode-ray tubes

In short

  • The US imported $7.2M of this product over the 12 months to August 2026, up 26% on the year before.
  • Austria is the largest supplier, with 90.2% of US imports; Japan is next, with 5.4%.
  • Duty paid averaged 10.1% of the value of imports in August 2026, down 5.2 points on a year earlier.
  • Austria is gaining share: 79.1% over the last 12 months, up from 71.6%.
  • US exports were $9.7M over the last 12 months; the largest market is Austria, with 85.4%.

US imports, Aug 2026

$997K

↑ +277% vs Aug 2025

Last 12 months

$7.2M

↑ +26% vs the 12 months before

Average duty paid

10.1%

↓ −5.2 pts vs Aug 2025

Top supplier

Austria

90.2% of US imports

US imports by month

The last 13 months, so the same month a year ago is on the left. August 2026 is highlighted. Dotted lines mark lasting changes in duty paid, labelled with the supplier, or "Duty" when several moved; the tariff timeline lists each one with its notices.

Aug2025SepOctNovDecJan2026FebMarAprMayJunJulAugAustria ↑
Show the numbers
MonthUS imports
August 2025$265K
September 2025$983K
October 2025$774K
November 2025$256K
December 2025$790K
January 2026$10K
February 2026$655K
March 2026$550K
April 2026$286K
May 2026$921K
June 2026$146K
July 2026$812K
August 2026$997K

What changed

  • US imports were $997K in August 2026, up 23% from July 2026 and up 277% from August 2025.
  • Over the 12 months to August 2026 they totalled $7.2M, up 26% on the 12 months before.
  • Biggest moves in market share since July 2026: Austria up from 82.2% to 90.2%, Canada down from 4.3% to 0.0%.
  • Duty paid on imports from Germany fell from 15.4% to 10.0% of their value since July 2026.
  • Duty paid on imports from Austria fell from 13.6% to 10.0% of their value since July 2026.

US trade by year

US imports were $7.2M in the 12 months to Aug 2026, up 395% on the 12 months to Aug 2017. US exports were $9.7M, up 197%. In January 2022 the HS 2022 revision moved some goods between this code and 8549.21, 8549.29, 8549.31 and 3 more, so part of a change across the dashed line can be the revision. Dotted lines mark lasting changes in duty paid, labelled with the supplier, or "Duty" when several moved; the tariff timeline lists each one with its notices.

2017201820192020202120222023202420252026HS 2022Duty ↑
Show the numbers
PeriodUS imports
12 months to Aug 2017$1.5M
12 months to Aug 2018$1.7M
12 months to Aug 2019$1.8M
12 months to Aug 2020$4.3M
12 months to Aug 2021$4.6M
12 months to Aug 2022$1.9M
12 months to Aug 2023$1.2M
12 months to Aug 2024$1.3M
12 months to Aug 2025$5.7M
12 months to Aug 2026$7.2M
  • Austria
  • Germany
  • Japan
  • Korea, South
  • All countries
Share of US imports
Show the numbers
PeriodAustriaGermanyJapanKorea, South
12 months to Aug 20170.0%18.5%30.1%0.0%
12 months to Aug 20180.0%41.9%24.1%0.0%
12 months to Aug 20190.9%29.8%36.5%0.0%
12 months to Aug 202066.9%12.0%9.2%0.0%
12 months to Aug 202174.5%4.1%8.2%0.0%
12 months to Aug 20220.0%20.5%24.4%0.8%
12 months to Aug 20230.0%44.6%26.3%0.0%
12 months to Aug 20240.0%50.4%8.2%0.0%
12 months to Aug 202571.6%11.0%2.2%0.0%
12 months to Aug 202679.1%6.5%6.1%2.3%
Duty paid, % of value
Show the numbers
PeriodAustriaGermanyJapanKorea, SouthAll countries
12 months to Aug 2017n/a5.2%5.4%n/a3.6%
12 months to Aug 2018n/a5.4%5.4%n/a4.3%
12 months to Aug 20195.4%5.4%5.4%n/a5.5%
12 months to Aug 20205.4%5.4%5.4%n/a5.4%
12 months to Aug 20215.4%5.4%5.4%n/a5.1%
12 months to Aug 2022n/a5.4%5.3%5.4%4.1%
12 months to Aug 2023n/a5.4%4.9%n/a4.2%
12 months to Aug 2024n/a5.3%5.4%n/a4.4%
12 months to Aug 20256.5%10.2%7.4%n/a7.2%
12 months to Aug 202612.9%14.7%14.4%15.4%13.2%
PeriodUS importsDuty paidUS exports
12 months to Aug 2026$7.2M+26%13.2%+6.0 pts$9.7M−17%
12 months to Aug 2025$5.7M+334%7.2%+2.8 pts$11.7M+22%
12 months to Aug 2024$1.3M+7.9%4.4%+0.2 pts$9.5M−25%
12 months to Aug 2023$1.2M−35%4.2%+0.2 pts$12.6M+34%
12 months to Aug 2022HS 2022 revision$1.9M−60%4.1%−1.0 pts$9.4M−13%
12 months to Aug 2021$4.6M+9.2%5.1%−0.3 pts$10.9M−6.3%
12 months to Aug 2020$4.3M+136%5.4%−0.1 pts$11.6M+27%
12 months to Aug 2019$1.8M+7.8%5.5%+1.2 pts$9.2M+25%
12 months to Aug 2018$1.7M+15%4.3%+0.7 pts$7.3M+125%
12 months to Aug 2017$1.5M3.6%$3.3M

Who supplies the US

August 2026. Small figures under each value are the change from August 2025. Average prices aren't shown because this product's lines are counted in different units.

CountryUS importsShareAverage priceDuty paidLast 13 months
Austria$899K90.2%+4.3 ptsn/a10.0%−5.0 pts
Japan$54K5.4%+1.4 ptsn/a12.6%−6.8 pts
Germany$44K4.4%−5.7 ptsn/a10.0%−5.1 pts
All countries$997K100.0%n/a10.1%−5.2 pts

The 3 largest suppliers had 91.7% of US imports over the last 12 months.

How the market is shifting

Austria gained the most share: 79.1% of US imports over the last 12 months, up from 71.6% in the 12 months before. Czech Republic lost the most: 1.3%, down from 8.3%. The charts show September 2024 to August 2026 for the 4 largest suppliers over the last 12 months. Dotted lines mark lasting changes in duty paid, labelled with the supplier, or "Duty" when several moved; the tariff timeline lists each one with its notices.

  • Austria
  • Germany
  • Japan
  • Korea, South
  • All countries
Share of US imports
Show the numbers
MonthAustriaGermanyJapanKorea, South
September 20240.0%55.1%5.3%0.0%
October 202475.5%4.7%1.6%0.0%
November 202489.8%5.4%2.6%0.0%
December 202443.7%8.9%0.0%0.0%
January 202584.2%8.2%2.5%0.0%
February 202561.3%5.8%4.2%0.0%
March 202583.0%4.9%7.6%0.0%
April 202584.0%5.4%0.0%0.0%
May 20250.0%88.7%0.0%0.0%
June 20250.0%98.2%0.0%0.0%
July 202571.4%7.9%0.2%0.0%
August 202585.9%10.1%4.0%0.0%
September 202593.5%5.1%1.4%0.0%
October 202588.2%4.6%7.1%0.0%
November 202588.8%5.5%4.7%0.0%
December 202587.0%8.0%4.0%0.0%
January 20260.0%100.0%0.0%0.0%
February 202670.4%9.5%3.5%0.0%
March 202682.1%2.8%11.4%0.0%
April 20260.0%4.7%20.4%57.9%
May 202674.4%9.7%3.7%0.0%
June 20260.0%30.7%34.6%0.0%
July 202682.2%2.9%5.0%0.0%
August 202690.2%4.4%5.4%0.0%
Duty paid, % of value
Show the numbers
MonthAustriaGermanyJapanKorea, SouthAll countries
September 2024n/a5.4%5.4%n/a4.0%
October 20245.4%5.4%5.4%n/a5.4%
November 20245.4%5.4%5.4%n/a5.4%
December 20245.4%5.4%n/an/a5.4%
January 20255.4%5.4%5.4%n/a5.2%
February 20255.4%5.4%5.4%n/a5.4%
March 20255.4%5.4%5.4%n/a5.2%
April 20250.0%6.2%5.4%n/a1.9%
May 2025n/a15.4%n/an/a14.8%
June 2025n/a15.4%15.4%n/a15.4%
July 202515.4%15.4%15.4%n/a15.3%
August 202515.0%15.1%19.5%n/a15.3%
September 202512.4%15.0%16.1%n/a12.6%
October 20259.9%15.0%15.0%n/a10.5%
November 20259.9%15.0%15.0%n/a10.6%
December 202515.0%15.0%15.0%n/a15.0%
January 2026n/a15.0%15.0%n/a15.0%
February 202615.0%15.1%13.2%n/a15.4%
March 202615.4%15.4%14.5%n/a15.2%
April 2026n/a15.4%14.6%15.4%15.0%
May 202615.4%15.4%15.4%n/a15.3%
June 2026n/a15.4%15.4%n/a13.7%
July 202613.6%15.4%12.0%n/a12.8%
August 202610.0%10.0%12.6%n/a10.1%

Tariff actions touching this product

When the duty paid on this product changed and stayed changed, for its main suppliers and all countries, newest first, with the Federal Register notices that named the product in the 3 months before. Rates are medians of the 4 months either side, less any usual seasonal swing. A change shows what happened to duty paid, not why; read each notice for what it did.

  1. February 2026 · Duty paid: Austria 9.9% → 15.4%.
  2. June 2025 · Duty paid: Austria 5.4% → 15.0%, all countries 4.7% → 15.1%.

Where it enters the US

Main ports of entry over the 12 months to August 2026: US imports and share.

  1. San Francisco International Airport, CA$3.1M · 43.0%
  2. Portland, OR$1.6M · 22.1%
  3. Seattle-Tacoma International Airport, WA$1.1M · 15.8%
  4. Detroit Metropolitan Airport, MI$289K · 4.0%
  5. Cleveland, OH$207K · 2.9%

Where US exports go

US exports were $942K in August 2026, down 11% from August 2025, and $9.7M over the last 12 months, down 17% on the 12 months before. Fastest-growing market with 3% or more of US exports: Mexico, up 44%.

MarketLast 12 monthsSharevs 12 months before
Austria$8.3M85.4%−18%
Mexico$381K3.9%+44%
Germany$315K3.3%−14%
Korea, South$185K1.9%−2.7%
Japan$164K1.7%+101%
Singapore$92K1.0%−11%
Canada$85K0.9%−35%
Australia$55K0.6%+267%
Other countries (14)$141K1.5%+166%
All countries$9.7M100.0%−17%

Markets abroad

Each country's own import figures for this product, from UN Comtrade: the 8 biggest importers outside the US in the latest year each has reported, what they bought from the US, and the change from the year before. Values usually include freight and insurance to the importer's border, so they run a little above US export figures. Countries report a year or more late; 62 have reported 2025 so far. Where a country's figure for imports from the US is under half or over double what the US recorded exporting there that year, the US figure is shown under it.

MarketImportsvs year beforeFrom the USUS share
Austria$30.6Min 2025+20%$15.7M51.2%
Taiwan$11.3Min 2024+38%$7.9MUS records $6K70.3%
Germany$9.7Min 2025−19%$450K4.6%
Korea, South$6.4Min 2025−12%$5K0.1%
China$1.3Min 2025+45%$993K79.2%
Singapore$785Kin 2025+85%$7820.1%
United Kingdom$520Kin 2025−75%$206K39.6%
Czech Republic$407Kin 2025+19%$39K9.7%

The biggest market outside the US is Austria, which imported $30.6M of this product in 2025, 51.2% of that from the US.

The US supplies 51.2% of imports into Austria and 79.2% into China, but under 10% into Germany, South Korea and Singapore.

Of these, imports into Austria grew fastest: up 20% from 2024 to 2025.

Other products under heading 8540: thermionic, cold cathode or photocathode tubes (vacuum, vapor or gas filled tubes, cathode-ray tubes, television camera tubes etc.); parts thereof. US trade over the 12 months to August 2026.

ProductUS importsUS exports
Television camera tubes; image converters and intensifiers; other photocathode tubesHS 8540.20$50.5M$170.0M
Microwave tubes, not elsewhere specifiedHS 8540.79$74.9M$84.4M
Thermionic and other cathode tubes, not elsewhere specifiedHS 8540.89$32.0M$93.8M
Parts of cathode tubes, not elsewhere specifiedHS 8540.99$25.1M$72.2M
Magnetron microwave tubesHS 8540.71$41.4M$48.0M
Receiver or amplifier tubesHS 8540.81$11.5M$48.3M
Data/graphic display tubes, monochrome; data/graphic display tubes, color, with a phosphor dot screen pitch smaller than 0.4 mmHS 8540.40$2.3M$4.5M
Cathode-ray tubes, not elsewhere specifiedHS 8540.60$11K$3.7M
About these figures
  • Source: US Census Bureau international trade data, not seasonally adjusted, in US dollars. Retrieved November 3, 2026.
  • US imports are general imports at customs value, which excludes freight and insurance. Exports are at free-alongside-ship value.
  • Average price is customs value divided by quantity, across all of the product's 10-digit lines.
  • Duty paid is the duty Census calculates on each country's imports for consumption, as a share of their value. It moves with tariff changes, exemptions and the mix of goods within the product.
  • Markets abroad are each country's imports as it reports them to UN Comtrade, in US dollars, usually including freight and insurance. Countries report a year or more late and in their own edition of the HS codes, so one still on an older edition is missing for codes that changed in 2022.
  • Census revises recent months, so figures can change slightly. These are estimates for research and planning, not customs or legal advice.

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