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

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HS 2819.10

Chromium trioxide

In short

  • The US imported $7.7M of this product over the 12 months to August 2026, down 31% on the year before.
  • Kazakhstan is the largest supplier, with 67.5% of US imports; South Africa is next, with 24.8%.
  • Kazakhstan has the lowest price, but landed at a US port with freight and duty South Africa is cheaper: $3.61/kg against $3.92/kg.
  • Duty paid averaged 12.7% of the value of imports in August 2026, up 7.1 points on a year earlier.
  • Kazakhstan is gaining share: 43.0% over the last 12 months, up from 33.8%.
  • 10 Federal Register notices named this product's tariff codes in the last 12 months.

US imports, Aug 2026

$1.2M

↑ +101% vs Aug 2025

Last 12 months

$7.7M

↓ −31% vs the 12 months before

Average duty paid

12.7%

↑ +7.1 pts vs Aug 2025

Top supplier

Kazakhstan

67.5% 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 ↑Duty ↓
Show the numbers
MonthUS imports
August 2025$615K
September 2025$280K
October 2025$355K
November 2025$219K
December 2025$193K
January 2026$301K
February 2026$170K
March 2026$392K
April 2026$696K
May 2026$1.8M
June 2026$840K
July 2026$1.2M
August 2026$1.2M

What changed

  • US imports were $1.2M in August 2026, up 1.1% from July 2026 and up 101% from August 2025.
  • Over the 12 months to August 2026 they totalled $7.7M, down 31% on the 12 months before.
  • Biggest moves in market share since July 2026: South Africa up from 10.8% to 24.8%, China down from 17.0% to 4.1%.
  • Average price from China rose 24% since July 2026, to $6.30/kg.
  • Duty paid on imports from South Africa fell from 13.7% to 0.0% of their value since July 2026.
  • Duty paid on imports from Kazakhstan rose from 13.9% to 16.2% of their value since July 2026.

US trade by year

US imports were $7.7M in the 12 months to Aug 2026, down 29% on the 12 months to Aug 2017. 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.

2017201820192020202120222023202420252026China ↑Duty ↑
Show the numbers
PeriodUS imports
12 months to Aug 2017$10.9M
12 months to Aug 2018$10.7M
12 months to Aug 2019$7.1M
12 months to Aug 2020$5.7M
12 months to Aug 2021$6.8M
12 months to Aug 2022$13.7M
12 months to Aug 2023$19.3M
12 months to Aug 2024$11.1M
12 months to Aug 2025$11.2M
12 months to Aug 2026$7.7M
  • Kazakhstan
  • India
  • South Africa
  • China
  • All countries
Share of US imports
Show the numbers
PeriodKazakhstanIndiaSouth AfricaChina
12 months to Aug 201744.2%0.5%3.0%41.4%
12 months to Aug 201821.8%10.3%2.1%55.3%
12 months to Aug 201951.5%4.4%3.4%34.4%
12 months to Aug 202061.2%3.3%4.9%20.2%
12 months to Aug 202159.9%19.6%2.3%10.6%
12 months to Aug 202257.2%19.5%8.2%7.4%
12 months to Aug 202353.0%30.6%7.4%4.7%
12 months to Aug 202453.9%22.6%12.7%8.4%
12 months to Aug 202533.8%38.9%8.6%7.9%
12 months to Aug 202643.0%20.5%15.4%13.3%
Duty paid, % of value
Show the numbers
PeriodKazakhstanIndiaSouth AfricaChinaAll countries
12 months to Aug 20170.2%0.0%0.0%3.7%2.0%
12 months to Aug 20180.2%0.0%1.0%3.7%2.5%
12 months to Aug 20190.0%1.0%0.9%14.2%5.2%
12 months to Aug 20200.1%3.7%0.0%28.7%6.3%
12 months to Aug 20210.0%3.7%0.0%28.7%4.0%
12 months to Aug 20220.0%3.7%0.0%28.7%3.1%
12 months to Aug 20230.1%3.7%0.0%28.7%2.6%
12 months to Aug 20240.0%3.7%0.0%28.7%3.3%
12 months to Aug 20252.7%6.8%0.2%32.5%7.3%
12 months to Aug 202616.2%13.7%11.3%44.7%18.5%
PeriodUS importsDuty paidUS exports
12 months to Aug 2026$7.7M−31%18.5%+11.2 pts$0
12 months to Aug 2025$11.2M+1.5%7.3%+4.0 pts$0
12 months to Aug 2024$11.1M−43%3.3%+0.7 pts$0
12 months to Aug 2023$19.3M+42%2.6%−0.5 pts$0
12 months to Aug 2022$13.7M+100%3.1%−0.9 pts$0
12 months to Aug 2021$6.8M+19%4.0%−2.3 pts$0
12 months to Aug 2020$5.7M−19%6.3%+1.1 pts$0
12 months to Aug 2019$7.1M−34%5.2%+2.7 pts$0
12 months to Aug 2018$10.7M−1.4%2.5%+0.5 pts$0
12 months to Aug 2017$10.9M2.0%$0

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
Kazakhstan$834K67.5%+26.6 pts$2.88/kg−19%16.2%+16.2 pts
South Africa$307K24.8%+5.8 pts$3.28/kg+0.7%0.0%0.0 pts
China$50K4.1%new$6.30/kg37.2%
Canada$18K1.5%+0.8 pts$4.84/kg−1.4%0.0%0.0 pts
Mexico$18K1.4%−0.3 pts$6.82/kg+123%13.7%−15.0 pts
Spain$8K0.6%new$7.83/kg10.0%
All countries$1.2M100.0%$3.10/kg+6.6%12.7%+7.1 pts

The 3 largest suppliers had 78.9% 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
South Africa$3.31/kg$0.18/kg5.4% of price$0.12/kg3.7% of price$3.61/kg+6.7%
Kazakhstan$2.92/kg$0.57/kg19.4% of price$0.43/kg14.7% of price$3.92/kg+10%
China$5.29/kg$0.37/kg7.1% of price$2.04/kg38.5% of price$7.70/kg−26%
All countries$3.24/kg$0.47/kg14.7% of price$0.53/kg16.4% of price$4.24/kg+13%

Landed at a US port, South Africa was cheapest, at $3.61/kg: 7.8% below Kazakhstan.

Kazakhstan had the lowest price before freight and duty, $2.92/kg, but they added 34.1% to it.

Landed cost from China fell 26% on a year earlier, to $7.70/kg, mostly on duty: $3.85/kg then, $2.04/kg now.

How the market is shifting

Kazakhstan gained the most share: 43.0% of US imports over the last 12 months, up from 33.8% in the 12 months before. India lost the most: 20.5%, down from 38.9%. 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.

  • Kazakhstan
  • India
  • South Africa
  • China
  • All countries
Share of US imports
Show the numbers
MonthKazakhstanIndiaSouth AfricaChina
September 20248.3%53.5%24.2%11.5%
October 202438.1%0.0%24.0%34.7%
November 202464.9%0.0%11.1%10.4%
December 202427.2%63.3%0.0%8.8%
January 202528.7%0.0%0.0%69.2%
February 202535.7%46.6%0.0%17.7%
March 202563.5%30.8%0.0%4.9%
April 202544.2%36.7%3.7%2.8%
May 20254.6%88.4%4.3%2.7%
June 202562.7%20.1%8.6%0.0%
July 202513.3%21.7%4.6%2.6%
August 202540.9%37.5%19.0%0.0%
September 202520.7%0.0%0.0%68.0%
October 202516.3%0.0%32.2%0.0%
November 202554.0%0.0%0.0%43.7%
December 20250.0%0.0%59.9%32.8%
January 202638.4%0.0%38.3%21.1%
February 202635.4%0.0%34.0%28.0%
March 202662.2%0.0%14.7%13.9%
April 202655.6%7.0%8.3%0.9%
May 20266.5%81.2%9.6%0.3%
June 202656.0%6.4%6.9%29.0%
July 202670.5%0.0%10.8%17.0%
August 202667.5%0.0%24.8%4.1%
Duty paid, % of value
Show the numbers
MonthKazakhstanIndiaSouth AfricaChinaAll countries
September 20240.0%3.7%0.0%28.7%5.3%
October 20240.0%n/a0.0%28.7%10.0%
November 20240.0%n/a3.7%28.7%3.5%
December 20240.0%3.7%n/a28.7%4.9%
January 20250.0%n/an/a28.7%19.9%
February 20250.0%3.7%n/a28.7%6.8%
March 20250.0%3.7%n/a38.7%3.1%
April 20256.3%3.7%0.0%48.7%5.9%
May 20250.0%8.4%0.0%58.7%9.0%
June 20256.7%13.7%0.0%n/a7.9%
July 20250.0%13.7%0.0%58.7%12.3%
August 20250.0%13.7%0.0%n/a5.7%
September 202528.7%n/an/a57.3%47.2%
October 202528.7%n/a33.7%n/a23.7%
November 202528.7%n/an/a48.7%36.8%
December 2025n/an/a33.7%48.7%37.6%
January 202628.7%n/a33.7%48.7%34.2%
February 202628.7%n/a0.0%48.7%23.8%
March 202613.7%n/a0.0%38.7%15.0%
April 202613.7%13.7%0.0%38.7%12.6%
May 202613.7%13.7%0.0%38.7%12.4%
June 202613.7%13.7%0.0%38.7%19.8%
July 202613.9%n/a13.7%38.7%17.9%
August 202616.2%n/a0.0%37.2%12.7%

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. March 2026 · Duty paid: all countries 35.5% → 14.7%.
  2. September 2025 · Duty paid: all countries 9.2% → 37.1%.
  3. April–May 2025 · Duty paid: Kazakhstan 0.0% → 6.3%, India 3.7% → 13.7%.
  4. June 2019 · Duty paid: China 13.7% → 28.7%.

Federal Register notices from the last 12 months that list this product's tariff codes. A notice can add a duty, exclude products from one or only mention them, so read each for what it changes. These are the 5 newest of 10. Search the Federal Register for 2819.10

Where it enters the US

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

  1. Savannah, GA$2.3M · 29.2%
  2. Norfolk-Newport News, VA$1.3M · 17.1%
  3. Charleston, SC$1.0M · 13.3%
  4. Houston, TX$842K · 10.9%
  5. Newark, NJ$801K · 10.4%

Where US exports go

The US recorded no exports of this product in the last 12 months.

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; 92 have reported 2025 so far.

MarketImportsvs year beforeFrom the USUS share
Brazil$22.8Min 2025+6.9%$1.4M6.0%
Estonia$20.4Min 2025−2.5%$00.0%
Korea, South$12.1Min 2025−3.7%$2.1M17.5%
Germany$11.4Min 2025+21%$460K4.0%
Italy$8.6Min 2025+34%$1.2M14.2%
India$8.1Min 2025−1.9%$1.5M18.5%
China$5.5Min 2025−34%$414K7.5%
South Africa$5.3Min 2025+39%$3K0.1%

The biggest market outside the US is Brazil, which imported $22.8M of this product in 2025, 6.0% of that from the US.

Of these, imports into South Africa grew fastest: up 39% from 2024 to 2025.

Other products under heading 2819: chromium oxides and hydroxides. US trade over the 12 months to August 2026.

ProductUS importsUS exports
Chromium oxides and hydrides, except chromium trioxide, not elsewhere specifiedHS 2819.90$18.3Mnone
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 (kilograms), 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.
  • Tariff notices are from the Federal Register, matched to this product by the HTS numbers in their text.
  • 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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