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

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Mineral substances, not elsewhere specified

In short

  • The US imported $89.7M of this product over the 12 months to August 2026, up 9.8% on the year before.
  • Mexico is the largest supplier, with 23.6% of US imports; Australia is next, with 17.1%.
  • Duty paid averaged 1.0% of the value of imports in August 2026, up 0.9 points on a year earlier.
  • Thailand is gaining share: 8.3% over the last 12 months, up from 0.5%.
  • 3 Federal Register notices named this product's tariff codes in the last 12 months.
  • US exports were $141.0M over the last 12 months; the largest market is Netherlands, with 24.7%.

US imports, Aug 2026

$7.3M

↓ −67% vs Aug 2025

Last 12 months

$89.7M

↑ +9.8% vs the 12 months before

Average duty paid

1.0%

↑ +0.9 pts vs Aug 2025

Top supplier

Mexico

23.6% 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$22.2M
September 2025$5.1M
October 2025$4.8M
November 2025$6.2M
December 2025$5.2M
January 2026$7.2M
February 2026$5.8M
March 2026$6.5M
April 2026$6.7M
May 2026$22.4M
June 2026$6.1M
July 2026$6.4M
August 2026$7.3M

What changed

  • US imports were $7.3M in August 2026, up 15% from July 2026 and down 67% from August 2025.
  • Over the 12 months to August 2026 they totalled $89.7M, up 9.8% on the 12 months before.
  • Biggest moves in market share since July 2026: Australia up from 0.0% to 17.1%, Norway down from 8.9% to 0.1%.
  • Duty paid on imports from Norway rose from 0.0% to 12.5% of their value since July 2026.

US trade by year

US imports were $89.7M in the 12 months to Aug 2026, up 45% on the 12 months to Aug 2017. US exports were $141.0M, down 4.2%.

2017201820192020202120222023202420252026
Show the numbers
PeriodUS imports
12 months to Aug 2017$61.8M
12 months to Aug 2018$70.8M
12 months to Aug 2019$91.5M
12 months to Aug 2020$81.1M
12 months to Aug 2021$75.4M
12 months to Aug 2022$106.0M
12 months to Aug 2023$94.3M
12 months to Aug 2024$88.7M
12 months to Aug 2025$81.7M
12 months to Aug 2026$89.7M
  • Canada
  • Mexico
  • Japan
  • Thailand
  • All countries
Share of US imports
Show the numbers
PeriodCanadaMexicoJapanThailand
12 months to Aug 201732.1%25.1%9.3%0.0%
12 months to Aug 201822.7%23.0%12.5%0.2%
12 months to Aug 201925.6%23.5%11.8%0.1%
12 months to Aug 202028.5%20.9%17.7%0.0%
12 months to Aug 202123.7%27.3%16.3%0.0%
12 months to Aug 202216.5%20.1%14.1%0.0%
12 months to Aug 202312.5%17.1%20.5%0.0%
12 months to Aug 202418.2%22.1%13.4%0.0%
12 months to Aug 202541.3%25.4%10.1%0.5%
12 months to Aug 202631.9%21.3%12.4%8.3%
Duty paid, % of value
Show the numbers
PeriodCanadaMexicoJapanThailandAll countries
12 months to Aug 20170.0%0.0%0.0%n/a0.1%
12 months to Aug 20180.0%0.0%0.0%0.0%0.1%
12 months to Aug 20190.0%0.0%0.0%0.0%0.1%
12 months to Aug 20200.0%0.0%0.0%0.0%0.0%
12 months to Aug 20210.0%0.0%0.0%0.0%0.0%
12 months to Aug 20220.0%0.0%0.0%n/a0.0%
12 months to Aug 20230.0%0.0%0.0%n/a0.0%
12 months to Aug 20240.0%0.0%0.0%n/a0.0%
12 months to Aug 20250.0%0.0%0.0%0.0%0.2%
12 months to Aug 20260.0%0.0%0.1%0.0%0.5%
PeriodUS importsDuty paidUS exports
12 months to Aug 2026$89.7M+9.8%0.5%+0.3 pts$141.0M+13%
12 months to Aug 2025$81.7M−7.8%0.2%+0.2 pts$124.6M−3.2%
12 months to Aug 2024$88.7M−6.0%0.0%0.0 pts$128.8M+20%
12 months to Aug 2023$94.3M−11%0.0%0.0 pts$107.6M−2.1%
12 months to Aug 2022$106.0M+41%0.0%0.0 pts$109.9M+26%
12 months to Aug 2021$75.4M−6.9%0.0%0.0 pts$86.9M−0.1%
12 months to Aug 2020$81.1M−11%0.0%0.0 pts$87.0M−14%
12 months to Aug 2019$91.5M+29%0.1%0.0 pts$101.2M−33%
12 months to Aug 2018$70.8M+14%0.1%0.0 pts$151.0M+2.6%
12 months to Aug 2017$61.8M0.1%$147.2M

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
Mexico$1.7M23.6%+16.3 ptsn/a0.0%0.0 pts
Australia$1.2M17.1%+14.2 ptsn/a0.0%0.0 pts
Canada$828K11.4%−62.2 ptsn/a0.0%0.0 pts
Japan$715K9.8%+5.5 ptsn/a0.1%0.0 pts
China$443K6.1%+5.9 ptsn/a0.2%−22.2 pts
Germany$399K5.5%+3.1 ptsn/a1.4%−0.8 pts
Thailand$356K4.9%+3.9 ptsn/a0.0%0.0 pts
Switzerland$313K4.3%+4.1 ptsn/a0.7%+0.7 pts
Other countries (16)$1.3M17.4%+9.9 ptsn/a4.8%+4.6 pts
All countries$7.3M100.0%n/a1.0%+0.9 pts

The 3 largest suppliers had 65.6% of US imports over the last 12 months.

How the market is shifting

Thailand gained the most share: 8.3% of US imports over the last 12 months, up from 0.5% in the 12 months before. Canada lost the most: 31.9%, down from 41.3%. The charts show September 2024 to August 2026 for the 4 largest suppliers over the last 12 months.

  • Canada
  • Mexico
  • Japan
  • Thailand
  • All countries
Share of US imports
Show the numbers
MonthCanadaMexicoJapanThailand
September 202419.0%35.0%2.4%0.0%
October 202419.9%34.2%20.8%0.0%
November 202421.9%42.3%3.4%0.0%
December 202416.7%42.0%9.5%0.0%
January 202519.9%33.9%16.6%0.0%
February 202518.3%52.0%12.5%0.0%
March 202564.3%13.6%5.6%0.0%
April 202514.9%33.1%22.3%0.0%
May 202523.3%44.8%12.3%0.0%
June 202519.9%28.9%24.9%0.0%
July 202519.6%33.5%14.3%3.5%
August 202573.6%7.3%4.3%1.0%
September 202520.7%25.6%12.6%14.3%
October 202523.2%25.9%6.6%12.9%
November 202515.3%19.5%24.9%13.5%
December 202519.6%21.2%19.5%17.6%
January 202625.3%21.1%19.8%16.7%
February 202615.0%37.1%14.6%5.6%
March 202619.8%28.9%16.0%10.8%
April 202614.6%24.7%22.0%13.4%
May 202674.0%10.0%3.7%2.9%
June 202616.5%23.1%8.1%3.6%
July 202616.5%26.5%12.7%0.0%
August 202611.4%23.6%9.8%4.9%
Duty paid, % of value
Show the numbers
MonthCanadaMexicoJapanThailandAll countries
September 20240.0%0.0%0.0%n/a0.0%
October 20240.0%0.0%0.0%n/a0.0%
November 20240.0%0.0%0.0%n/a0.1%
December 20240.0%0.0%0.0%n/a0.0%
January 20250.0%0.0%0.0%n/a0.1%
February 20250.0%0.0%0.0%n/a0.1%
March 20250.0%0.0%0.0%n/a0.1%
April 20250.0%0.0%0.0%n/a1.0%
May 20250.0%0.0%0.0%n/a0.5%
June 20250.2%0.0%0.0%n/a0.5%
July 20250.0%0.0%0.2%0.0%0.6%
August 20250.0%0.0%0.0%0.0%0.1%
September 20250.0%0.1%0.2%0.0%0.5%
October 20250.2%0.5%0.0%0.0%1.9%
November 20250.3%0.0%0.0%0.0%0.4%
December 20250.0%0.1%0.0%0.0%0.6%
January 20260.0%0.0%0.1%0.0%0.4%
February 20260.0%0.0%0.0%0.0%0.5%
March 20260.0%0.0%0.2%0.0%0.7%
April 20260.0%0.0%0.1%0.0%0.4%
May 20260.0%0.0%0.2%0.0%0.2%
June 20260.0%0.0%0.2%0.0%0.2%
July 20260.0%0.0%0.1%n/a0.5%
August 20260.0%0.0%0.1%0.0%1.0%

Tariff actions touching this product

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. Search the Federal Register for 2530.90

Where it enters the US

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

  1. Nogales, AZ$15.8M · 17.7%
  2. Corpus Christi, TX$15.6M · 17.4%
  3. Savannah, GA$14.8M · 16.5%
  4. Detroit, MI$9.3M · 10.4%
  5. Tacoma, WA$3.6M · 4.0%

Where US exports go

US exports were $14.3M in August 2026, up 45% from August 2025, and $141.0M over the last 12 months, up 13% on the 12 months before. Fastest-growing market with 3% or more of US exports: Bahamas, up 78%.

MarketLast 12 monthsSharevs 12 months before
Netherlands$34.9M24.7%+12%
Canada$20.1M14.3%+10%
United Kingdom$17.1M12.1%+34%
Japan$15.9M11.3%+2.0%
Mexico$7.8M5.6%−1.5%
China$5.6M4.0%+4.9%
Bahamas$4.6M3.2%+78%
Bermuda$3.7M2.6%+1908%
Other countries (85)$31.3M22.2%+2.1%
All countries$141.0M100.0%+13%

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; 121 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
China$1.83Bin 2025−65%$68.5M3.8%
Germany$97.7Min 2025+32%$7.3MUS records $3.1M7.4%
Korea, South$96.7Min 2025−35%$2.2M2.2%
Indonesia$91.2Min 2025+39%$14K0.0%
India$85.7Min 2025+0.1%$3.9M4.5%
Italy$68.4Min 2025+21%$2.0M3.0%
Netherlands$58.2Min 2025−12%$23.2M40.0%
France$54.4Min 2025−24%$4.8MUS records $1.3M8.8%

The biggest market outside the US is China, which imported $1.83B of this product in 2025, 3.8% of that from the US.

The US supplies 40.0% of imports into the Netherlands, but under 10% into China, South Korea and Indonesia.

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

Other products under heading 2530: mineral substances not elsewhere specified. US trade over the 12 months to August 2026.

ProductUS importsUS exports
Vermiculite, perlite and chlorites, unexpandedHS 2530.10$27.8M$8.3M
Kieserite, epsom salts (natural magnesium sulfates)HS 2530.20$1.7M$370K
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.
  • 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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