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

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HS 2510.20

Natural calcium phosphates, natural aluminum calcium phosphates and phosphatic chalk, ground

In short

  • The US imported $880K of this product over the 12 months to August 2026, down 11% on the year before.
  • United Kingdom is the largest supplier, with 80.4% of US imports; Canada is next, with 10.4%.
  • Canada is the cheapest main supplier before and after freight and duty, landing at $929.75/tonne.
  • Duty paid averaged 5.2% of the value of imports in August 2026, up 3.1 points on a year earlier.
  • United Kingdom is gaining share: 70.7% over the last 12 months, up from 55.9%.
  • 2 Federal Register notices named this product's tariff codes in the last 12 months.

US imports, Aug 2026

$193K

↑ +83% vs Aug 2025

Last 12 months

$880K

↓ −11% vs the 12 months before

Average duty paid

5.2%

↑ +3.1 pts vs Aug 2025

Top supplier

United Kingdom

80.4% 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$106K
September 2025$117K
October 2025$31K
November 2025$26K
December 2025$33K
January 2026$0
February 2026$45K
March 2026$70K
April 2026$44K
May 2026$203K
June 2026$34K
July 2026$84K
August 2026$193K

What changed

  • US imports were $193K in August 2026, up 131% from July 2026 and up 83% from August 2025.
  • Over the 12 months to August 2026 they totalled $880K, down 11% on the 12 months before.
  • Biggest moves in market share since July 2026: United Kingdom up from 68.3% to 80.4%, New Zealand down from 22.2% to 0.0%.
  • Average price from Canada fell 59% since July 2026, to $875.09/tonne.
  • Duty paid on imports from United Kingdom rose from 0.0% to 5.4% of their value since July 2026.

US trade by year

US imports were $880K in the 12 months to Aug 2026, down 98% on the 12 months to Aug 2017. US exports were $3.2M, up 256%.

2017201820192020202120222023202420252026
Show the numbers
PeriodUS imports
12 months to Aug 2017$50.4M
12 months to Aug 2018$41.9M
12 months to Aug 2019$2.4M
12 months to Aug 2020$2.7M
12 months to Aug 2021$834K
12 months to Aug 2022$973K
12 months to Aug 2023$842K
12 months to Aug 2024$880K
12 months to Aug 2025$992K
12 months to Aug 2026$880K
  • United Kingdom
  • Japan
  • Mexico
  • Canada
  • All countries
Share of US imports
Show the numbers
PeriodUnited KingdomJapanMexicoCanada
12 months to Aug 20175.3%0.0%0.0%0.4%
12 months to Aug 20180.0%0.1%0.0%0.5%
12 months to Aug 20190.5%0.4%0.0%9.3%
12 months to Aug 20200.1%0.9%0.0%1.3%
12 months to Aug 20210.0%0.8%6.9%10.3%
12 months to Aug 20221.6%0.3%9.9%3.2%
12 months to Aug 202315.3%0.8%8.8%3.0%
12 months to Aug 202461.3%0.0%4.3%6.3%
12 months to Aug 202555.9%0.0%3.7%6.8%
12 months to Aug 202670.7%10.5%4.7%4.1%
Duty paid, % of value
Show the numbers
PeriodUnited KingdomJapanMexicoCanadaAll countries
12 months to Aug 20170.0%0.0%n/a0.0%0.0%
12 months to Aug 20180.0%0.0%n/a0.0%0.0%
12 months to Aug 20190.0%0.0%n/a0.0%0.1%
12 months to Aug 20200.0%0.0%n/a0.0%0.4%
12 months to Aug 2021n/a0.0%0.0%0.0%0.2%
12 months to Aug 20220.0%0.0%0.0%0.0%0.3%
12 months to Aug 20230.0%0.0%0.0%0.0%1.3%
12 months to Aug 20240.0%n/a0.0%0.0%0.2%
12 months to Aug 20250.6%n/a0.0%0.0%2.9%
12 months to Aug 20261.3%0.0%0.0%0.0%1.8%
PeriodUS importsDuty paidUS exports
12 months to Aug 2026$880K−11%1.8%−1.1 pts$3.2M+95%
12 months to Aug 2025$992K+13%2.9%+2.6 pts$1.6M+2.9%
12 months to Aug 2024$880K+4.6%0.2%−1.1 pts$1.6M+0.3%
12 months to Aug 2023$842K−14%1.3%+1.0 pts$1.6M−11%
12 months to Aug 2022$973K+17%0.3%+0.1 pts$1.8M+115%
12 months to Aug 2021$834K−69%0.2%−0.2 pts$820K−44%
12 months to Aug 2020$2.7M+14%0.4%+0.3 pts$1.5M−4.3%
12 months to Aug 2019$2.4M−94%0.1%+0.1 pts$1.5M+116%
12 months to Aug 2018$41.9M−17%0.0%0.0 pts$709K−20%
12 months to Aug 2017$50.4M0.0%$888K

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
United Kingdom$155K80.4%+2.3 pts$1,057/tonne+26%5.4%+5.4 pts
Canada$20K10.4%−6.8 pts$875.09/tonne+93%0.0%0.0 pts
Ecuador$18K9.2%new$939.47/tonne10.0%
All countries$193K100.0%$1,023/tonne+35%5.2%+3.1 pts

The 3 largest suppliers had 85.9% 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
Canada$928.62/tonne$1.12/tonne0.1% of price$0.00/tonne0.0% of price$929.75/tonne+83%
Ecuador$939.47/tonne$131.58/tonne14.0% of price$93.95/tonne10.0% of price$1,165/tonne
United Kingdom$1,128/tonne$75.43/tonne6.7% of price$38.05/tonne3.4% of price$1,242/tonne+64%
New Zealand$1,692/tonne$136.36/tonne8.1% of price$0.00/tonne0.0% of price$1,828/tonne
All countries$1,137/tonne$74.99/tonne6.6% of price$42.17/tonne3.7% of price$1,254/tonne+88%

Landed at a US port, Canada was cheapest, at $929.75/tonne: 20.2% below Ecuador.

Landed cost from Canada rose 83% on a year earlier, to $929.75/tonne, mostly on price: $471.08/tonne then, $928.62/tonne now.

How the market is shifting

United Kingdom gained the most share: 70.7% of US imports over the last 12 months, up from 55.9% in the 12 months before. China lost the most: 1.9%, down from 6.6%. The charts show September 2024 to August 2026 for the 4 largest suppliers over the last 12 months.

  • United Kingdom
  • Japan
  • Mexico
  • Canada
  • All countries
Share of US imports
Show the numbers
MonthUnited KingdomJapanMexicoCanada
September 2024100.0%0.0%0.0%0.0%
October 20240.0%0.0%0.0%0.0%
November 2024n/an/an/an/a
December 2024100.0%0.0%0.0%0.0%
January 20250.0%0.0%50.3%0.0%
February 20250.0%0.0%69.2%0.0%
March 20250.0%0.0%13.3%5.8%
April 202569.1%0.0%3.0%21.2%
May 202512.2%0.0%3.3%0.0%
June 202585.5%0.0%2.8%5.5%
July 202544.4%0.0%0.0%0.0%
August 202578.1%0.0%0.0%17.2%
September 202570.6%0.0%13.1%0.0%
October 202552.9%0.0%33.9%0.0%
November 202513.4%0.0%20.2%0.0%
December 2025100.0%0.0%0.0%0.0%
January 2026n/an/an/an/a
February 202676.7%0.0%23.3%0.0%
March 202686.7%0.0%0.0%13.3%
April 202678.1%0.0%0.0%10.7%
May 202654.4%45.6%0.0%0.0%
June 2026100.0%0.0%0.0%0.0%
July 202668.3%0.0%0.0%2.6%
August 202680.4%0.0%0.0%10.4%
Duty paid, % of value
Show the numbers
MonthUnited KingdomJapanMexicoCanadaAll countries
September 20240.0%n/an/an/a0.0%
October 2024n/an/an/an/a25.0%
November 2024n/an/an/an/an/a
December 20240.0%n/an/an/a0.0%
January 2025n/an/a0.0%n/a6.1%
February 2025n/an/a0.0%n/a10.8%
March 2025n/an/a0.0%0.0%8.0%
April 20252.8%n/a0.0%0.0%5.6%
May 20250.0%n/a0.0%n/a0.7%
June 20250.0%n/a0.0%0.0%2.8%
July 20250.0%n/an/an/a0.0%
August 20250.0%n/an/a0.0%2.1%
September 20250.0%n/a0.0%n/a2.3%
October 20250.0%n/a0.0%n/a0.0%
November 20250.0%n/a0.0%n/a0.0%
December 20250.0%n/an/an/a0.0%
January 2026n/an/an/an/an/a
February 20260.0%n/a0.0%n/a0.0%
March 20260.0%n/an/a0.0%0.0%
April 20260.0%n/an/a0.0%2.8%
May 20260.0%0.0%n/an/a0.0%
June 20260.0%n/an/an/a0.0%
July 20260.0%n/an/a0.0%1.7%
August 20265.4%n/an/a0.0%5.2%

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 2510.20

Where it enters the US

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

  1. Charleston, SC$238K · 27.0%
  2. Los Angeles, CA$227K · 25.8%
  3. Houston, TX$111K · 12.6%
  4. Seattle-Tacoma International Airport, WA$92K · 10.5%
  5. Detroit, MI$67K · 7.6%

Where US exports go

US exports were $143K in August 2026, down 19% from August 2025, and $3.2M over the last 12 months, up 95% on the 12 months before. Fastest-growing market with 3% or more of US exports: United Kingdom, up 733%.

MarketLast 12 monthsSharevs 12 months before
Canada$1.6M49.8%+38%
United Kingdom$568K18.0%+733%
Brazil$267K8.5%+680%
India$215K6.8%new
Egypt$137K4.3%new
Trinidad and Tobago$76K2.4%+623%
Chile$58K1.8%−22%
Korea, South$55K1.7%−36%
Other countries (10)$211K6.7%+12%
All countries$3.2M100.0%+95%

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; 83 have reported 2025 so far.

MarketImportsvs year beforeFrom the USUS share
India$915.4Min 2025+27%$00.0%
Lithuania$286.1Min 2025+92%$00.0%
Indonesia$183.4Min 2025−8.0%$00.0%
Turkey$98.6Min 2025+37%$00.0%
Belgium$86.9Min 2025+6.8%$00.0%
Lebanon$55.7Min 2024+51%$00.0%
Bulgaria$54.5Min 2025+4.0%$00.0%
Philippines$42.7Min 2025+9.0%$00.0%

The biggest market outside the US is India, which imported $915.4M of this product in 2025, none of it from the US.

Of these, imports into Lithuania grew fastest: up 92% from 2024 to 2025.

Other products under heading 2510: natural calcium phosphates, natural aluminum calcium phosphates and phosphatic chalk. US trade over the 12 months to August 2026.

ProductUS importsUS exports
Natural calcium phosphates, natural aluminum calcium phosphates and phosphatic chalk, ungroundHS 2510.10$301.9M$274K
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 (tonnes), 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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