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

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Vacuum flasks and other vacuum vessels, complete; parts thereof other than glass inners

In short

  • The US imported $1.58B of this product over the 12 months to August 2026, unchanged on the year before.
  • China is the largest supplier, with 78.5% of US imports; Vietnam is next, with 10.4%.
  • China is the cheapest main supplier before and after freight and duty, landing at $5.53 each.
  • Duty paid averaged 19.3% of the value of imports in August 2026, down 15.1 points on a year earlier.
  • Vietnam is gaining share: 10.3% over the last 12 months, up from 3.1%.
  • US exports were $137.4M over the last 12 months; the largest market is Mexico, with 38.3%.

US imports, Aug 2026

$172.6M

↑ +38% vs Aug 2025

Last 12 months

$1.58B

0.0% vs the 12 months before

Average duty paid

19.3%

↓ −15.1 pts vs Aug 2025

Top supplier

China

78.5% 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.

Aug2025SepOctNovDecJan2026FebMarAprMayJunJulAugDuty ↓
Show the numbers
MonthUS imports
August 2025$125.0M
September 2025$119.6M
October 2025$119.7M
November 2025$103.1M
December 2025$106.5M
January 2026$120.6M
February 2026$111.3M
March 2026$125.1M
April 2026$111.4M
May 2026$160.6M
June 2026$162.0M
July 2026$162.5M
August 2026$172.6M

What changed

  • US imports were $172.6M in August 2026, up 6.2% from July 2026 and up 38% from August 2025.
  • Over the 12 months to August 2026 they totalled $1.58B, unchanged on the 12 months before.
  • Biggest moves in market share since July 2026: Vietnam up from 7.9% to 10.4%.
  • Average price from Vietnam rose 13% since July 2026, to $7.20 each.
  • Duty paid on imports from Vietnam rose from 15.9% to 19.3% of their value since July 2026.
  • Duty paid on imports from China rose from 16.7% to 19.5% of their value since July 2026.

US trade by year

US imports were $1.58B in the 12 months to Aug 2026, up 238% on the 12 months to Aug 2017. US exports were $137.4M, up 197%. 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.

2017201820192020202120222023202420252026Duty ↑
Show the numbers
PeriodUS imports
12 months to Aug 2017$466.6M
12 months to Aug 2018$408.3M
12 months to Aug 2019$572.4M
12 months to Aug 2020$473.7M
12 months to Aug 2021$643.5M
12 months to Aug 2022$1.30B
12 months to Aug 2023$1.19B
12 months to Aug 2024$1.60B
12 months to Aug 2025$1.57B
12 months to Aug 2026$1.58B
  • China
  • Vietnam
  • Thailand
  • Malaysia
  • All countries
Share of US imports
Show the numbers
PeriodChinaVietnamThailandMalaysia
12 months to Aug 201796.5%0.0%1.7%0.0%
12 months to Aug 201896.7%0.0%1.6%0.0%
12 months to Aug 201997.3%0.0%1.3%0.0%
12 months to Aug 202096.9%0.0%1.8%0.1%
12 months to Aug 202198.2%0.0%0.4%0.4%
12 months to Aug 202298.8%0.0%0.5%0.0%
12 months to Aug 202398.6%0.0%0.6%0.0%
12 months to Aug 202497.6%0.4%1.2%0.2%
12 months to Aug 202592.2%3.1%3.3%0.5%
12 months to Aug 202677.0%10.3%8.9%2.8%
Duty paid, % of value
Show the numbers
PeriodChinaVietnamThailandMalaysiaAll countries
12 months to Aug 20177.2%7.2%0.0%n/a7.0%
12 months to Aug 20187.2%n/a0.0%n/a7.1%
12 months to Aug 20197.1%7.2%0.0%7.2%7.0%
12 months to Aug 20207.2%6.9%0.0%7.2%7.1%
12 months to Aug 20217.3%7.2%0.0%7.2%7.3%
12 months to Aug 20227.3%7.2%0.0%7.2%7.2%
12 months to Aug 20237.2%7.2%0.4%7.2%7.2%
12 months to Aug 20247.2%7.1%1.2%7.2%7.1%
12 months to Aug 202520.5%9.2%7.1%12.6%19.6%
12 months to Aug 202623.4%21.4%20.2%20.6%22.7%
PeriodUS importsDuty paidUS exports
12 months to Aug 2026$1.58B0.0%22.7%+3.1 pts$137.4M−6.0%
12 months to Aug 2025$1.57B−1.8%19.6%+12.5 pts$146.1M−7.4%
12 months to Aug 2024$1.60B+34%7.1%−0.1 pts$157.8M−14%
12 months to Aug 2023$1.19B−8.3%7.2%−0.1 pts$183.0M+11%
12 months to Aug 2022$1.30B+102%7.2%0.0 pts$165.0M+43%
12 months to Aug 2021$643.5M+36%7.3%+0.2 pts$115.7M+12%
12 months to Aug 2020$473.7M−17%7.1%0.0 pts$103.7M+5.2%
12 months to Aug 2019$572.4M+40%7.0%0.0 pts$98.5M−6.8%
12 months to Aug 2018$408.3M−12%7.1%0.0 pts$105.7M+129%
12 months to Aug 2017$466.6M7.0%$46.2M

Who supplies the US

August 2026. Small figures under each value are the change from August 2025. Landed cost by origin, below, adds freight and duty to the price.

CountryUS importsShareAverage priceDuty paidLast 13 months
China$135.5M78.5%−9.7 pts$4.79 each+5.4%19.5%−17.9 pts
Vietnam$18.0M10.4%+7.5 pts$7.20 each+34%19.3%+1.4 pts
Thailand$14.6M8.5%+1.3 pts$6.14 each+12%19.1%+8.9 pts
Malaysia$3.6M2.1%+1.6 pts$5.00 each−3.3%17.1%−0.1 pts
Norway$310K0.2%new$17.33 each19.4%
Taiwan$245K0.1%0.0 pts$27.98 each+22%10.0%−10.8 pts
Korea, South$127K0.1%+0.1 pts$5.26 each−44%12.5%+2.5 pts
Hong Kong$115K0.1%−0.2 pts$5.30 each−6.0%19.7%−17.4 pts
Other countries (8)$104K0.1%0.0 pts$8.66 each+54%15.6%+4.0 pts
All countries$172.6M100.0%$5.09 each+11%19.3%−15.1 pts

The 3 largest suppliers had 96.2% of US imports over the last 12 months.

Landed cost by origin

What importers paid to land this product at a US port from each main supplier, June–August 2026: the price, freight and insurance to the first US port, and duty, per unit. Suppliers with 3% or more of these imports, cheapest landed first. Small figures under landed cost are the change from the same months a year earlier.

  • Price
  • Freight and insurance
  • Duty
CountryPriceFreight and insuranceDutyLanded costMake-up
China$4.51 each$0.22 each4.9% of price$0.80 each17.8% of price$5.53 each−12%
Vietnam$6.32 each$0.14 each2.3% of price$1.11 each17.6% of price$7.58 each+21%
Thailand$6.56 each$0.14 each2.2% of price$1.15 each17.6% of price$7.86 each+19%
All countries$4.83 each$0.21 each4.3% of price$0.86 each17.7% of price$5.89 each−5.9%

Landed at a US port, China was cheapest, at $5.53 each: 27.0% below Vietnam.

Landed cost from Vietnam rose 21% on a year earlier, to $7.58 each, mostly on price: $5.28 each then, $6.32 each now.

How the market is shifting

Vietnam gained the most share: 10.3% of US imports over the last 12 months, up from 3.1% in the 12 months before. China lost the most: 77.0%, down from 92.2%. 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.

  • China
  • Vietnam
  • Thailand
  • Malaysia
  • All countries
Share of US imports
Show the numbers
MonthChinaVietnamThailandMalaysia
September 202493.0%3.9%1.7%0.2%
October 202489.9%4.5%4.8%0.1%
November 202494.5%4.0%1.3%0.0%
December 202494.6%3.4%1.5%0.0%
January 202594.5%3.5%1.5%0.1%
February 202594.5%2.1%2.4%0.5%
March 202593.1%2.4%2.4%1.3%
April 202592.5%3.4%2.8%0.3%
May 202588.4%2.1%7.8%0.5%
June 202591.4%0.9%5.0%1.1%
July 202589.2%3.2%4.4%2.0%
August 202588.2%2.9%7.1%0.5%
September 202587.7%4.6%5.9%0.9%
October 202586.1%4.7%4.7%3.5%
November 202578.7%10.3%7.2%2.7%
December 202569.3%19.0%7.2%2.8%
January 202673.1%13.1%9.7%3.2%
February 202673.0%12.1%10.6%2.9%
March 202669.4%13.0%11.2%5.4%
April 202676.4%9.6%11.1%2.0%
May 202677.5%9.7%9.5%2.4%
June 202675.4%11.2%10.0%2.9%
July 202677.7%7.9%10.1%3.4%
August 202678.5%10.4%8.5%2.1%
Duty paid, % of value
Show the numbers
MonthChinaVietnamThailandMalaysiaAll countries
September 20247.2%7.0%2.9%7.2%7.1%
October 20247.2%7.0%4.4%7.2%7.1%
November 20247.2%7.1%3.0%n/a7.1%
December 20247.2%7.0%0.0%n/a7.1%
January 20257.2%7.0%1.0%7.2%7.1%
February 20258.7%7.0%1.8%7.2%8.5%
March 202524.1%7.1%4.4%7.2%22.9%
April 202535.4%6.9%6.4%4.5%33.2%
May 202560.6%15.6%10.6%9.1%54.9%
June 202537.1%17.2%10.6%17.2%34.9%
July 202537.1%17.1%10.5%17.2%34.5%
August 202537.4%17.9%10.2%17.2%34.4%
September 202536.7%23.5%24.4%25.8%35.0%
October 202537.3%27.1%26.2%26.2%35.6%
November 202529.5%26.9%26.2%26.2%28.6%
December 202527.2%27.1%26.2%26.2%26.8%
January 202627.3%27.1%26.2%26.2%27.0%
February 202624.1%25.7%23.2%24.4%24.1%
March 202616.6%17.3%16.7%17.1%16.7%
April 202617.1%17.1%17.2%17.1%17.1%
May 202617.5%17.1%17.1%17.2%17.4%
June 202617.2%17.1%17.1%17.2%17.1%
July 202616.7%15.9%16.7%16.5%16.6%
August 202619.5%19.3%19.1%17.1%19.3%

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. January–March 2026 · Duty paid: China 33.1% → 20.6%, Vietnam 27.0% → 17.1%, all countries 31.8% → 20.6%.
  2. March–June 2025 · Duty paid: China 8.0% → 37.1%, Vietnam 7.1% → 17.6%, all countries 7.1% → 34.1%.

Where it enters the US

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

  1. Los Angeles, CA$810.3M · 51.4%
  2. Long Beach, CA$251.5M · 16.0%
  3. Savannah, GA$93.9M · 6.0%
  4. Tacoma, WA$77.1M · 4.9%
  5. Houston, TX$54.4M · 3.5%

Where US exports go

US exports were $11.1M in August 2026, up 3.6% from August 2025, and $137.4M over the last 12 months, down 6.0% on the 12 months before. Fastest-growing market with 3% or more of US exports: China, up 78%.

MarketLast 12 monthsSharevs 12 months before
Mexico$52.6M38.3%+15%
Canada$41.2M30.0%−17%
China$6.4M4.6%+78%
Brazil$2.6M1.9%+10%
Netherlands$2.2M1.6%−59%
Australia$2.0M1.4%−42%
United Kingdom$1.8M1.3%−29%
Singapore$1.8M1.3%+14%
Other countries (106)$26.9M19.6%−15%
All countries$137.4M100.0%−6.0%

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; 124 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
Japan$275.2Min 2025+13%$312K0.1%
Germany$237.6Min 2025+23%$9.0M3.8%
Canada$217.8Min 2025−0.9%$3.2MUS records $46.2M1.5%
Korea, South$202.5Min 2025+1.5%$285K0.1%
Netherlands$180.6Min 2025+8.9%$1.3M0.7%
United Kingdom$179.9Min 2025+21%$6.9M3.8%
Brazil$173.2Min 2025+32%$250K0.1%
Mexico$159.2Min 2025+3.4%$4.1MUS records $48.8M2.6%

The biggest market outside the US is Japan, which imported $275.2M of this product in 2025, 0.1% of that from the US.

Of these, imports into Brazil grew fastest: up 32% from 2024 to 2025.

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 (number of items), 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.
  • Landed cost adds Census's import charges (freight, insurance and other costs of bringing the goods to the first US port) and calculated duty to the customs value, per unit, across the product's 10-digit lines. It leaves out antidumping and countervailing duties, customs fees and transport inland. Prices are averages across the goods within the code, so a lower one can mean cheaper goods, not the same goods for less.
  • 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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