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

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HS 2840.30

Peroxoborates (perborates)

In short

  • The US imported $4.2M of this product over the 12 months to August 2026, down 19% on the year before.
  • Slovenia is the largest supplier, with 78.4% of US imports; Austria is next, with 17.1%.
  • Slovenia is the cheapest main supplier before and after freight and duty, landing at $1.07/kg.
  • Duty paid averaged 11.4% of the value of imports in August 2026, down 2.4 points on a year earlier.
  • Slovenia is gaining share: 64.8% over the last 12 months, up from 54.6%.
  • US exports were $1.1M over the last 12 months; the largest market is Mexico, with 76.7%.

US imports, Aug 2026

$671K

↑ +64% vs Aug 2025

Last 12 months

$4.2M

↓ −19% vs the 12 months before

Average duty paid

11.4%

↓ −2.4 pts vs Aug 2025

Top supplier

Slovenia

78.4% 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.

Aug2025SepOctNovDecJan2026FebMarAprMayJunJulAug
Show the numbers
MonthUS imports
August 2025$408K
September 2025$238K
October 2025$256K
November 2025$245K
December 2025$459K
January 2026$293K
February 2026$368K
March 2026$151K
April 2026$385K
May 2026$357K
June 2026$317K
July 2026$457K
August 2026$671K

What changed

  • US imports were $671K in August 2026, up 47% from July 2026 and up 64% from August 2025.
  • Over the 12 months to August 2026 they totalled $4.2M, down 19% on the 12 months before.
  • Biggest moves in market share since July 2026: Slovenia up from 48.3% to 78.4%, Germany down from 38.4% to 0.0%.
  • Average price from China fell 18% since July 2026, to $0.95/kg.
  • Duty paid on imports from Slovenia rose from 7.1% to 10.0% of their value since July 2026.
  • Duty paid on imports from China rose from 38.7% to 41.2% of their value since July 2026.

US trade by year

US imports were $4.2M in the 12 months to Aug 2026, down 30% on the 12 months to Aug 2017. US exports were $1.1M, down 18%. 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 ↑Duty ↑Duty ↓Duty ↑
Show the numbers
PeriodUS imports
12 months to Aug 2017$6.0M
12 months to Aug 2018$8.1M
12 months to Aug 2019$7.0M
12 months to Aug 2020$4.2M
12 months to Aug 2021$3.7M
12 months to Aug 2022$5.5M
12 months to Aug 2023$9.1M
12 months to Aug 2024$4.9M
12 months to Aug 2025$5.2M
12 months to Aug 2026$4.2M
  • Slovenia
  • Austria
  • China
  • Germany
  • All countries
Share of US imports
Show the numbers
PeriodSloveniaAustriaChinaGermany
12 months to Aug 20175.6%58.8%32.4%0.8%
12 months to Aug 201827.0%54.2%17.2%1.4%
12 months to Aug 201938.3%32.0%28.6%1.1%
12 months to Aug 202027.9%53.8%7.2%7.3%
12 months to Aug 202138.9%29.2%2.5%29.4%
12 months to Aug 202259.5%20.0%7.1%12.7%
12 months to Aug 202347.1%16.5%33.2%3.1%
12 months to Aug 202442.7%31.0%14.3%10.4%
12 months to Aug 202554.6%21.4%7.8%15.5%
12 months to Aug 202664.8%22.7%7.4%4.2%
Duty paid, % of value
Show the numbers
PeriodSloveniaAustriaChinaGermanyAll countries
12 months to Aug 20173.7%3.7%3.7%3.7%3.7%
12 months to Aug 20183.7%3.7%3.7%3.7%3.7%
12 months to Aug 20193.7%3.7%18.3%3.7%7.9%
12 months to Aug 20203.7%3.7%28.7%3.7%5.5%
12 months to Aug 20213.7%3.7%28.7%3.7%4.3%
12 months to Aug 20223.7%3.7%28.7%3.7%5.5%
12 months to Aug 20233.7%3.7%28.7%3.7%12.0%
12 months to Aug 20243.7%3.7%28.7%3.7%7.3%
12 months to Aug 20259.8%8.5%31.6%3.4%10.2%
12 months to Aug 202613.0%12.7%44.9%0.0%14.7%
PeriodUS importsDuty paidUS exports
12 months to Aug 2026$4.2M−19%14.7%+4.5 pts$1.1M−40%
12 months to Aug 2025$5.2M+5.3%10.2%+2.9 pts$1.9M−9.5%
12 months to Aug 2024$4.9M−46%7.3%−4.7 pts$2.1M+32%
12 months to Aug 2023$9.1M+65%12.0%+6.5 pts$1.6M+42%
12 months to Aug 2022$5.5M+49%5.5%+1.1 pts$1.1M−52%
12 months to Aug 2021$3.7M−12%4.3%−1.2 pts$2.3M+230%
12 months to Aug 2020$4.2M−40%5.5%−2.4 pts$709K+177%
12 months to Aug 2019$7.0M−13%7.9%+4.2 pts$256K−56%
12 months to Aug 2018$8.1M+36%3.7%0.0 pts$587K−58%
12 months to Aug 2017$6.0M3.7%$1.4M

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
Slovenia$526K78.4%+6.4 pts$0.86/kg+2.1%10.0%−3.7 pts
Austria$115K17.1%−11.0 pts$2.00/kg+2.1%10.0%−4.1 pts
China$30K4.5%new$0.95/kg41.2%
All countries$671K100.0%$0.95/kg−4.5%11.4%−2.4 pts

The 3 largest suppliers had 94.9% 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
Slovenia$0.85/kg$0.14/kg15.9% of price$0.08/kg9.9% of price$1.07/kg−1.0%
China$1.08/kg$0.03/kg3.0% of price$0.43/kg39.5% of price$1.54/kg+8.0%
Austria$1.99/kg$0.11/kg5.4% of price$0.24/kg12.1% of price$2.33/kg+0.2%
Germany$53.89/kg$0.20/kg0.4% of price$0.00/kg0.0% of price$54.09/kg
All countries$1.12/kg$0.13/kg11.3% of price$0.12/kg11.0% of price$1.37/kg+9.1%

Landed at a US port, Slovenia was cheapest, at $1.07/kg: 30.6% below China.

How the market is shifting

Slovenia gained the most share: 64.8% of US imports over the last 12 months, up from 54.6% in the 12 months before. Germany lost the most: 4.2%, down from 15.5%. 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.

  • Slovenia
  • Austria
  • China
  • Germany
  • All countries
Share of US imports
Show the numbers
MonthSloveniaAustriaChinaGermany
September 20240.0%58.2%16.5%25.2%
October 20240.0%80.2%19.8%0.0%
November 20240.0%10.4%30.8%46.4%
December 20240.0%28.6%13.4%58.0%
January 20258.1%12.7%26.6%52.7%
February 202554.8%18.1%12.5%14.6%
March 202560.9%15.7%0.0%23.4%
April 202571.0%26.4%2.7%0.0%
May 202585.2%4.7%1.8%8.2%
June 202565.5%34.5%0.0%0.0%
July 202577.9%19.6%2.5%0.0%
August 202571.9%28.1%0.0%0.0%
September 202562.1%31.9%6.0%0.0%
October 202557.8%29.3%12.9%0.0%
November 202571.7%28.3%0.0%0.0%
December 202570.1%17.3%12.6%0.0%
January 202680.2%9.5%10.3%0.0%
February 202660.3%29.2%0.0%0.0%
March 20260.0%96.8%3.2%0.0%
April 202669.8%17.5%12.7%0.0%
May 202681.7%10.3%8.1%0.0%
June 202651.3%48.7%0.0%0.0%
July 202648.3%0.0%13.3%38.4%
August 202678.4%17.1%4.5%0.0%
Duty paid, % of value
Show the numbers
MonthSloveniaAustriaChinaGermanyAll countries
September 2024n/a3.7%28.7%3.7%7.8%
October 2024n/a3.7%28.7%n/a8.6%
November 2024n/a3.7%28.7%3.7%11.4%
December 2024n/a3.7%28.7%3.7%7.1%
January 20253.7%3.7%28.7%3.7%10.3%
February 20253.7%3.7%28.7%3.7%6.8%
March 20253.7%3.7%n/a3.7%3.7%
April 20253.7%11.2%48.7%n/a6.9%
May 202513.7%13.7%58.7%0.0%13.4%
June 202513.7%13.7%n/an/a13.7%
July 202513.7%13.7%58.7%n/a14.8%
August 202513.7%14.1%n/an/a13.8%
September 202513.7%15.0%58.7%n/a16.8%
October 202515.0%15.0%58.7%n/a20.6%
November 202515.0%15.0%n/an/a15.0%
December 202515.0%15.0%48.7%n/a19.2%
January 202615.0%15.0%48.7%n/a18.5%
February 202615.0%8.0%n/an/a12.8%
March 2026n/a11.1%38.7%n/a12.0%
April 202613.7%13.7%38.7%n/a16.9%
May 202613.7%13.7%38.7%n/a15.7%
June 202613.7%13.7%n/an/a13.7%
July 20267.1%n/a38.7%0.0%8.6%
August 202610.0%10.0%41.2%n/a11.4%

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. June 2025 · Duty paid: Slovenia 3.7% → 13.7%, all countries 6.9% → 14.2%.
  2. February 2024 · Duty paid: all countries 12.6% → 3.8%.
  3. January 2023 · Duty paid: all countries 5.3% → 18.5%.
  4. October 2019 · Duty paid: all countries 11.5% → 4.9%.
  5. April–June 2019 · Duty paid: China 13.7% → 28.7%, all countries 5.3% → 12.2%.

Where it enters the US

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

  1. Houston, TX$2.8M · 65.6%
  2. Newark, NJ$633K · 15.1%
  3. Charleston, SC$422K · 10.1%
  4. New Orleans, LA$175K · 4.2%
  5. Long Beach, CA$92K · 2.2%

Where US exports go

US exports were $235K in August 2026, down 28% from August 2025, and $1.1M over the last 12 months, down 40% on the 12 months before.

MarketLast 12 monthsSharevs 12 months before
Mexico$875K76.7%0.0%
India$56K4.9%−56%
United Kingdom$46K4.0%new
United Arab Emirates$38K3.3%−84%
Tunisia$32K2.8%+292%
Venezuela$29K2.6%−12%
Ecuador$26K2.3%−38%
Canada$13K1.2%−97%
Other countries (5)$24K2.1%new
All countries$1.1M100.0%−40%

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; 73 have reported 2025 so far.

MarketImportsvs year beforeFrom the USUS share
India$1.4Min 2025+0.3%$560.0%
Canada$1.1Min 2025−16%$9170.1%
Japan$1.0Min 2025+12%$00.0%
Brazil$486Kin 2025+24%$7950.2%
Korea, South$481Kin 2025+10%$1140.0%
Malaysia$404Kin 2025+1.5%$00.0%
Jordan$329Kin 2024+33865%$00.0%
Madagascar$267Kin 2025+110%$00.0%

The biggest market outside the US is India, which imported $1.4M of this product in 2025, under 0.1% of it from the US.

Other products under heading 2840: borates; peroxoborates (perborates). US trade over the 12 months to August 2026.

ProductUS importsUS exports
Disodium tetraborate (refined borax), except anhydrous, not elsewhere specifiedHS 2840.19$58.6M$313.4M
Borates, not elsewhere specifiedHS 2840.20$14.6M$38.5M
Anhydrous disodium tetraborate (refined borax)HS 2840.11$4.5M$39.5M
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.
  • 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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