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

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HS 3827.64

Mix cont 30% or more by mass of 1,1,1,2-tetrafluorine (hfc-134a) but not cont unsaturated fluorinated derivatives of acyclic hydrocarbons (hfos) not elsewhere specified

In short

  • The US imported $2.1M of this product over the 12 months to August 2026, down 32% on the year before.
  • India is the largest supplier, with 60.4% of US imports; Mexico is next, with 30.8%.
  • Mexico is the cheapest main supplier before and after freight and duty, landing at $4.03/kg.
  • Duty paid averaged 8.3% of the value of imports in August 2026, down 5.3 points on a year earlier.
  • Mexico is gaining share: 3.1% over the last 12 months, up from 0.8%.
  • US exports were $4.6M over the last 12 months; the largest market is Mexico, with 44.9%.

US imports, Aug 2026

$31K

↓ −93% vs Aug 2025

Last 12 months

$2.1M

↓ −32% vs the 12 months before

Average duty paid

8.3%

↓ −5.3 pts vs Aug 2025

Top supplier

India

60.4% 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$438K
September 2025$73K
October 2025$565K
November 2025$0
December 2025$981K
January 2026$0
February 2026$7K
March 2026$43K
April 2026$10K
May 2026$0
June 2026$107K
July 2026$254K
August 2026$31K

What changed

  • US imports were $31K in August 2026, down 88% from July 2026 and down 93% from August 2025.
  • Over the 12 months to August 2026 they totalled $2.1M, down 32% on the 12 months before.
  • Biggest moves in market share since July 2026: Mexico up from 4.3% to 30.8%, India down from 95.7% to 60.4%.
  • Average price from Mexico fell 39% since July 2026, to $3.26/kg.
  • Duty paid by the main suppliers held within 2 points of July 2026.

US trade by year

US imports were $2.1M in the 12 months to Aug 2026, down 81% on the 12 months to Aug 2023. US exports were $4.6M, down 41%. This code began with the HS 2022 revision in January 2022, taking goods from 3824.78, so its history starts there. 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.

2023202420252026Duty ↑
Show the numbers
PeriodUS imports
12 months to Aug 2023$10.7M
12 months to Aug 2024$3.1M
12 months to Aug 2025$3.0M
12 months to Aug 2026$2.1M
  • India
  • China
  • Mexico
  • Taiwan
  • All countries
Share of US imports
Show the numbers
PeriodIndiaChinaMexicoTaiwan
12 months to Aug 202317.0%21.8%13.6%0.0%
12 months to Aug 202433.0%3.2%8.0%0.0%
12 months to Aug 202577.8%19.9%0.8%1.5%
12 months to Aug 202673.1%21.8%3.1%1.8%
Duty paid, % of value
Show the numbers
PeriodIndiaChinaMexicoTaiwanAll countries
12 months to Aug 20233.7%28.7%3.7%n/a8.9%
12 months to Aug 20243.7%28.7%3.5%n/a4.5%
12 months to Aug 20259.0%49.8%0.0%3.7%16.0%
12 months to Aug 202642.3%48.7%0.0%14.1%41.8%
PeriodUS importsDuty paidUS exports
12 months to Aug 2026$2.1M−32%41.8%+25.8 pts$4.6M−6.5%
12 months to Aug 2025$3.0M−2.4%16.0%+11.5 pts$4.9M+19%
12 months to Aug 2024$3.1M−71%4.5%−4.4 pts$4.2M−47%
12 months to Aug 2023$10.7M8.9%$7.8M

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
India$19K60.4%−18.5 pts$10.41/kg+28%13.7%0.0 pts
Mexico$10K30.8%+30.3 pts$3.26/kg0.0%0.0%0.0 pts
Canada$3K8.8%new$19.76/kg0.0%
All countries$31K100.0%$6.37/kg−21%8.3%−5.3 pts

The 3 largest suppliers had 98.0% 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
Mexico$4.00/kg$0.04/kg1.0% of price$0.00/kg0.0% of price$4.03/kg+24%
India$8.54/kg$0.31/kg3.6% of price$1.17/kg13.7% of price$10.01/kg−9.2%
All countries$7.94/kg$0.27/kg3.4% of price$1.01/kg12.7% of price$9.22/kg−9.7%

Landed at a US port, Mexico was cheapest, at $4.03/kg: 59.7% below India.

Landed cost from Mexico rose 24% on a year earlier, to $4.03/kg, mostly on price: $3.26/kg then, $4.00/kg now.

How the market is shifting

Mexico gained the most share: 3.1% of US imports over the last 12 months, up from 0.8% in the 12 months before. India lost the most: 73.1%, down from 77.8%. The charts show September 2024 to August 2026 for the 4 largest suppliers over the last 12 months.

  • India
  • China
  • Mexico
  • Taiwan
  • All countries
Share of US imports
Show the numbers
MonthIndiaChinaMexicoTaiwan
September 202498.5%0.0%1.5%0.0%
October 202437.7%58.6%3.8%0.0%
November 20240.0%0.0%0.0%100.0%
December 2024100.0%0.0%0.0%0.0%
January 202594.6%0.0%5.4%0.0%
February 2025n/an/an/an/a
March 2025n/an/an/an/a
April 2025n/an/an/an/a
May 2025100.0%0.0%0.0%0.0%
June 202566.2%33.8%0.0%0.0%
July 202565.8%33.3%0.8%0.0%
August 202579.0%20.5%0.5%0.0%
September 202593.6%0.0%3.5%0.0%
October 202599.6%0.0%0.4%0.0%
November 2025n/an/an/an/a
December 202553.0%46.0%0.9%0.0%
January 2026n/an/an/an/a
February 20260.0%0.0%100.0%0.0%
March 20260.0%0.0%14.0%86.0%
April 20260.0%0.0%100.0%0.0%
May 2026n/an/an/an/a
June 202693.8%0.0%6.2%0.0%
July 202695.7%0.0%4.3%0.0%
August 202660.4%0.0%30.8%0.0%
Duty paid, % of value
Show the numbers
MonthIndiaChinaMexicoTaiwanAll countries
September 20243.7%n/a0.0%n/a3.6%
October 20243.7%28.7%0.0%n/a18.2%
November 2024n/an/an/a3.7%3.7%
December 20243.7%n/an/an/a3.7%
January 20253.7%n/a0.0%n/a3.5%
February 2025n/an/an/an/an/a
March 2025n/an/an/an/an/a
April 2025n/an/an/an/an/a
May 20259.7%n/an/an/a9.7%
June 202513.7%58.7%n/an/a28.9%
July 202513.7%58.7%0.0%n/a28.6%
August 202513.7%n/a0.0%n/a13.6%
September 202513.7%n/a0.0%n/a12.8%
October 202553.7%n/a0.0%n/a53.5%
November 2025n/an/an/an/an/a
December 202553.7%48.7%0.0%n/a50.9%
January 2026n/an/an/an/an/a
February 2026n/an/a0.0%n/a0.0%
March 2026n/an/a0.0%14.1%12.2%
April 2026n/an/a0.0%n/a0.0%
May 2026n/an/an/an/an/a
June 202613.7%n/a0.0%n/a12.9%
July 202613.7%n/a0.0%n/a13.1%
August 202613.7%n/a0.0%n/a8.3%

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. September 2022 · Duty paid: all countries 3.7% → 8.9%.

Where it enters the US

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

  1. Norfolk-Newport News, VA$563K · 27.2%
  2. Houston, TX$557K · 26.9%
  3. Los Angeles, CA$452K · 21.8%
  4. Charleston, SC$121K · 5.9%
  5. Savannah, GA$121K · 5.9%

Where US exports go

US exports were $397K in August 2026, down 18% from August 2025, and $4.6M over the last 12 months, down 6.5% on the 12 months before.

MarketLast 12 monthsSharevs 12 months before
Mexico$2.1M44.9%−6.6%
Canada$2.1M44.5%−11%
United Kingdom$141K3.1%new
Saudi Arabia$134K2.9%−42%
Argentina$53K1.1%−59%
Curacao$51K1.1%new
Jamaica$27K0.6%new
Micronesia$26K0.6%new
Other countries (4)$58K1.3%new
All countries$4.6M100.0%−6.5%

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; 99 have reported 2025 so far.

MarketImportsvs year beforeFrom the USUS share
Italy$7.3Min 2025−39%$00.0%
Germany$6.8Min 2025−25%$237K3.5%
Korea, South$5.1Min 2025+62%$00.0%
Spain$5.0Min 2025+43%$325K6.6%
Singapore$4.5Min 2025+22%$00.0%
Czech Republic$3.7Min 2025−7.7%$00.0%
Netherlands$3.5Min 2025−24%$00.0%
Bulgaria$3.5Min 2025+11666%$00.0%

The biggest market outside the US is Italy, which imported $7.3M of this product in 2025, none of it from the US.

Of these, imports into South Korea grew fastest: up 62% from 2024 to 2025.

Other products under heading 3827: mixtures containing halogenated derivatives of methane, ethane or propane, not elsewhere specified or included. US trade over the 12 months to August 2026.

ProductUS importsUS exports
Mixtures containing hydrofluorocarbons (hfcs) of subheadings 2903.41 to 2903.48, not elsewhere specified or includedHS 3827.68$56.0M$46.8M
Mixtures containing 40 percent or more by mass of pentafluoroethane (hfc-125), not elsewhere specified or includedHS 3827.63$33.9M$11.9M
Mixtures containing 20 percent or more by mass of difluoromethane (hfc-32) and 20 percent or more by mass of pentafluoroethane (hfc-125), not elsewhere specifiedHS 3827.65$100K$38.8M
Mixtures containing halogenated derivatives of methane, ethane or propane, not elsewhere specified or includedHS 3827.90$513K$6.6M
Mixtures containing 15 percent or more by mass of 1,1,1-trifluoroethane (hfc-143a)HS 3827.61$2.9M$3.3M
Mixtures containing other hydrofluorocarbons (hfcs) but not containing chlorofluorocarbons (cfcs) or hydrochlorofluorocarbons (hcfcs), not elsewhere specifiedHS 3827.69$241K$3.0M
Mix cont 55 percent or more by mass of pentafluoroethane (hfc-125) but not cont unsaturated fluorinated derivatives of acyclic hydrocarbons (hfos) nesHS 3827.62$1.2M$731K
Mixtures containing trifluoromethane (hfc-23)HS 3827.51$67K$1.2M
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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