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

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HS 4810.31

Kraft paper and paperboard (not for writing, etc.), over 95% wood fiber by chemical process, not over 150 g/m2, clay coated, bleached, in rolls etc.

In short

  • The US imported $84.2M of this product over the 12 months to August 2026, up 1095% on the year before.
  • Canada is the largest supplier, with 98.2% of US imports; Indonesia is next, with 1.5%.
  • Duty paid averaged 0.2% of the value of imports in August 2026, down 21.2 points on a year earlier.
  • Canada is gaining share: 93.8% over the last 12 months, up from 0.3%.
  • US exports were $32.6M over the last 12 months; the largest market is Canada, with 79.4%.

US imports, Aug 2026

$18.4M

↑ +3135% vs Aug 2025

Last 12 months

$84.2M

↑ +1095% vs the 12 months before

Average duty paid

0.2%

↓ −21.2 pts vs Aug 2025

Top supplier

Canada

98.2% 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$570K
September 2025$1.1M
October 2025$632K
November 2025$250K
December 2025$579K
January 2026$642K
February 2026$4.4M
March 2026$11.5M
April 2026$10.8M
May 2026$12.2M
June 2026$12.9M
July 2026$10.9M
August 2026$18.4M

What changed

  • US imports were $18.4M in August 2026, up 70% from July 2026 and up 3135% from August 2025.
  • Over the 12 months to August 2026 they totalled $84.2M, up 1095% on the 12 months before.
  • Market shares barely moved since July 2026: no supplier with 3% or more of the market gained or lost 2 points.
  • Average price from Canada stayed within 5% of July 2026, at $1.54/kg.
  • Duty paid by the main suppliers held within 2 points of July 2026.

US trade by year

US imports were $84.2M in the 12 months to Aug 2026, up 670% on the 12 months to Aug 2017. US exports were $32.6M, down 51%. 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 ↑Duty ↓Duty ↑
Show the numbers
PeriodUS imports
12 months to Aug 2017$10.9M
12 months to Aug 2018$12.6M
12 months to Aug 2019$10.4M
12 months to Aug 2020$6.7M
12 months to Aug 2021$6.0M
12 months to Aug 2022$7.2M
12 months to Aug 2023$18.3M
12 months to Aug 2024$3.5M
12 months to Aug 2025$7.0M
12 months to Aug 2026$84.2M
  • Canada
  • Spain
  • Indonesia
  • China
  • All countries
Share of US imports
Show the numbers
PeriodCanadaSpainIndonesiaChina
12 months to Aug 20173.5%19.5%0.0%13.6%
12 months to Aug 20180.2%13.6%0.0%9.1%
12 months to Aug 20190.2%15.0%0.0%18.2%
12 months to Aug 20200.2%19.0%0.0%19.7%
12 months to Aug 20210.2%33.7%0.0%17.9%
12 months to Aug 20220.4%15.8%1.8%31.7%
12 months to Aug 20230.4%10.7%0.2%7.0%
12 months to Aug 20247.6%27.3%4.9%6.1%
12 months to Aug 20250.3%19.1%9.0%14.8%
12 months to Aug 202693.8%1.6%1.2%1.2%
Duty paid, % of value
Show the numbers
PeriodCanadaSpainIndonesiaChinaAll 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/a10.4%1.9%
12 months to Aug 20200.0%0.0%n/a24.6%4.8%
12 months to Aug 20210.0%0.0%n/a23.9%4.3%
12 months to Aug 20220.0%0.0%0.0%22.3%7.1%
12 months to Aug 20230.0%0.0%0.0%23.5%1.6%
12 months to Aug 20240.0%0.0%0.0%22.9%1.4%
12 months to Aug 202535.0%0.6%8.8%40.1%8.7%
12 months to Aug 20260.0%14.0%14.0%44.9%1.3%
PeriodUS importsDuty paidUS exports
12 months to Aug 2026$84.2M+1095%1.3%−7.5 pts$32.6M−5.0%
12 months to Aug 2025$7.0M+102%8.7%+7.3 pts$34.3M−9.5%
12 months to Aug 2024$3.5M−81%1.4%−0.2 pts$37.9M−12%
12 months to Aug 2023$18.3M+153%1.6%−5.4 pts$43.3M−16%
12 months to Aug 2022$7.2M+21%7.1%+2.8 pts$51.6M+32%
12 months to Aug 2021$6.0M−11%4.3%−0.6 pts$39.1M+47%
12 months to Aug 2020$6.7M−35%4.8%+2.9 pts$26.7M+4.0%
12 months to Aug 2019$10.4M−17%1.9%+1.9 pts$25.7M−63%
12 months to Aug 2018$12.6M+15%0.0%0.0 pts$69.1M+4.3%
12 months to Aug 2017$10.9M0.0%$66.2M

Who supplies the US

August 2026. Small figures under each value are the change from August 2025.

CountryUS importsShareAverage priceDuty paidLast 13 months
Canada$18.1M98.2%+94.9 pts$1.54/kg−3.6%0.0%−35.0 pts
Indonesia$273K1.5%−23.7 pts$1.44/kg+3.3%10.0%0.0 pts
China$34K0.2%−21.3 pts$1.60/kg−21%37.5%−17.5 pts
Vietnam$24K0.1%−8.8 pts$2.20/kg+13%12.5%+4.1 pts
All countries$18.4M100.0%$1.53/kg+2.3%0.2%−21.2 pts

The 3 largest suppliers had 96.6% of US imports over the last 12 months.

How the market is shifting

Canada gained the most share: 93.8% of US imports over the last 12 months, up from 0.3% in the 12 months before. Korea, South lost the most: 0.9%, down from 36.7%. 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.

  • Canada
  • Spain
  • Indonesia
  • China
  • All countries
Share of US imports
Show the numbers
MonthCanadaSpainIndonesiaChina
September 20240.0%17.6%0.0%23.2%
October 20240.0%19.8%0.0%27.8%
November 20240.0%51.5%5.9%3.0%
December 20240.0%44.1%0.0%8.1%
January 20250.0%0.0%0.0%8.1%
February 20250.0%53.6%21.6%0.0%
March 20250.0%17.5%0.0%58.8%
April 20250.0%10.5%0.0%3.1%
May 20250.0%8.9%21.4%15.2%
June 20250.0%0.0%11.2%19.0%
July 20250.0%0.0%27.3%17.6%
August 20253.3%13.1%25.2%21.5%
September 20250.0%29.7%0.0%15.9%
October 20250.0%0.0%7.0%42.0%
November 20250.0%59.8%21.2%6.6%
December 202516.9%29.9%50.8%0.9%
January 20269.2%43.7%3.9%0.8%
February 202682.2%3.6%1.1%3.1%
March 202698.3%1.6%0.0%0.0%
April 202698.0%0.0%0.1%1.5%
May 202698.3%0.6%0.0%1.1%
June 202699.4%0.0%0.2%0.2%
July 202696.2%0.0%2.5%0.5%
August 202698.2%0.0%1.5%0.2%
Duty paid, % of value
Show the numbers
MonthCanadaSpainIndonesiaChinaAll countries
September 2024n/a0.0%n/a25.0%5.8%
October 2024n/a0.0%n/a25.0%6.9%
November 2024n/a0.0%0.0%25.0%0.7%
December 2024n/a0.0%n/a25.0%2.0%
January 2025n/an/an/a25.0%2.0%
February 2025n/a0.0%0.0%n/a0.0%
March 2025n/a0.0%n/a41.2%24.6%
April 2025n/a0.0%n/a45.0%2.3%
May 2025n/a0.0%10.0%45.7%13.8%
June 2025n/an/a10.0%55.0%17.7%
July 2025n/an/a10.0%55.0%14.8%
August 202535.0%10.0%10.0%55.0%21.4%
September 2025n/a15.0%n/a55.0%23.3%
October 2025n/an/a19.0%55.0%34.1%
November 2025n/a15.0%19.0%45.0%17.8%
December 20250.0%15.0%19.0%45.0%14.8%
January 20260.0%15.0%19.0%45.0%14.0%
February 20260.0%15.0%19.0%44.7%3.6%
March 20260.0%10.0%n/an/a0.2%
April 20260.0%n/a10.0%35.0%0.5%
May 20260.0%10.0%n/a35.0%0.4%
June 20260.0%n/a10.0%35.0%0.1%
July 20260.0%n/a10.0%26.3%0.5%
August 20260.0%n/a10.0%37.5%0.2%

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 2026 · Duty paid: all countries 19.6% → 2.7%.
  2. July–August 2025 · Duty paid: China 45.7% → 55.0%, all countries 14.3% → 21.4%.
  3. March 2025 · Duty paid: all countries 1.6% → 15.9%.
  4. October 2022 · Duty paid: all countries 7.9% → 1.1%.
  5. February 2022 · Duty paid: all countries 6.7% → 1.4%.
  6. May 2021 · Duty paid: all countries 0.8% → 6.7%.
  7. November 2018 · Duty paid: China 0.0% → 10.0%.

Where it enters the US

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

  1. Port Huron, MI$40.1M · 47.6%
  2. Detroit, MI$23.2M · 27.5%
  3. Alexandria Bay, NY$9.3M · 11.0%
  4. Champlain-Rouses Point, NY$3.5M · 4.1%
  5. Buffalo-Niagara Falls, NY$2.9M · 3.4%

Where US exports go

US exports were $4.4M in August 2026, up 18% from August 2025, and $32.6M over the last 12 months, down 5.0% on the 12 months before. Fastest-growing market with 3% or more of US exports: Mexico, up 13%.

MarketLast 12 monthsSharevs 12 months before
Canada$25.9M79.4%−4.5%
Mexico$2.8M8.6%+13%
China$1.2M3.6%−13%
Hungary$896K2.7%−50%
India$684K2.1%+35%
Taiwan$346K1.1%−29%
Saudi Arabia$273K0.8%+2217%
Italy$266K0.8%+479%
Other countries (13)$257K0.8%+1.6%
All countries$32.6M100.0%−5.0%

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; 101 have reported 2025 so far.

MarketImportsvs year beforeFrom the USUS share
China$31.4Min 2025+0.8%$355K1.1%
Canada$23.5Min 2025−16%$22.9M97.3%
Germany$17.0Min 2025+1.0%$11K0.1%
Colombia$12.0Min 2025−10%$421K3.5%
Poland$9.6Min 2025+35%$00.0%
France$8.3Min 2025+1.7%$5K0.1%
India$7.2Min 2025−18%$1.2M15.9%
Netherlands$7.2Min 2025−36%$39K0.5%

The biggest market outside the US is China, which imported $31.4M of this product in 2025, 1.1% of that from the US.

The US supplies 97.3% of imports into Canada, but under 10% into China, Germany and Colombia.

Of these, imports into Poland grew fastest: up 35% from 2024 to 2025.

Other products under heading 4810: paper and paperboard, coated on one or both sides with kaolin (china clay) or other inorganic substances (with no other coating), in rolls or sheets. US trade over the 12 months to August 2026.

ProductUS importsUS exports
Paper and paperboard (other than kraft or graphic), multi-ply, clay coated, in rolls or sheetsHS 4810.92$645.1M$191.3M
Kraft paper and paperboard (not for writing, printing or other graphic purposes), clay coated, unbleached, in rolls or sheetsHS 4810.39$180.6M$376.2M
Paper & paperboard, for writing/printing/graphic purpose, clay coated, not over 10% mech fibers, not elsewhere specifiedHS 4810.19$507.6M$25.2M
Paper and paperboard for writing, printing or other graphic purposes, over 10% (wt.) mechanical fibers, clay coated not elsewhere specified, in rolls or sheetsHS 4810.29$189.3M$300.6M
Paper & paperboard, for writing/printing/graphic purpose, clay coated, not over 10% mech fibers, in rollsHS 4810.13$249.3M$230.0M
Kraft paper and paperboard (not for writing, etc.), over 95% wood fiber by chemical process, over 150 g/m2, clay coated, bleached, in rolls or sheetsHS 4810.32$1.4M$347.7M
Paper, light-weight coated, used for writing, printing or other graphic purposes, over 10% (wt.) mechanical fibers, in rolls or sheetsHS 4810.22$287.8M$32.3M
Paper and paperboard (other than kraft or graphic), not elsewhere specified, clay coated, in rolls or sheetsHS 4810.99$38.7M$93.7M
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.
  • 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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