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

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HS 2903.72

Dichlorotrifluoroethanes (hcfc-123)

In short

  • The US imported $5.1M of this product over the 12 months to August 2026, up 312% on the year before.
  • Canada is the largest supplier, with 100.0% of US imports.
  • Korea, South is the cheapest main supplier before and after freight and duty, landing at $27.82/kg.
  • Duty paid averaged 0.0% of the value of imports in August 2026, down 58.7 points on a year earlier.
  • Singapore is gaining share: 14.4% over the last 12 months, up from 0.0%.
  • US exports were $67K over the last 12 months; the largest market is Mexico, with 70.6%.

US imports, Aug 2026

$384K

↓ −23% vs Aug 2025

Last 12 months

$5.1M

↑ +312% vs the 12 months before

Average duty paid

0.0%

↓ −58.7 pts vs Aug 2025

Top supplier

Canada

100.0% 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$499K
September 2025$729K
October 2025$2.2M
November 2025$371K
December 2025$93K
January 2026$541K
February 2026$0
March 2026$12K
April 2026$0
May 2026$210K
June 2026$588K
July 2026$0
August 2026$384K

What changed

  • US imports were $384K in August 2026, down 23% from August 2025.
  • Over the 12 months to August 2026 they totalled $5.1M, up 312% on the 12 months before.
  • Biggest moves in market share since July 2026: Canada up from 0.0% to 100.0%.

US trade by year

US imports were $5.1M in the 12 months to Aug 2026, down 61% on the 12 months to Aug 2017. US exports were $67K, down 99%. 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 ↓
Show the numbers
PeriodUS imports
12 months to Aug 2017$13.3M
12 months to Aug 2018$21.9M
12 months to Aug 2019$13.4M
12 months to Aug 2020$3.7M
12 months to Aug 2021$3.3M
12 months to Aug 2022$6.7M
12 months to Aug 2023$7.0M
12 months to Aug 2024$2.8M
12 months to Aug 2025$1.2M
12 months to Aug 2026$5.1M
  • China
  • Singapore
  • Korea, South
  • Canada
  • All countries
Share of US imports
Show the numbers
PeriodChinaSingaporeKorea, SouthCanada
12 months to Aug 20174.3%0.0%0.0%95.7%
12 months to Aug 201813.1%0.0%0.0%86.9%
12 months to Aug 201924.6%0.0%0.0%75.4%
12 months to Aug 2020100.0%0.0%0.0%0.0%
12 months to Aug 2021100.0%0.0%0.0%0.0%
12 months to Aug 202299.3%0.0%0.0%0.7%
12 months to Aug 202399.1%0.0%0.0%0.9%
12 months to Aug 202496.8%3.2%0.0%0.0%
12 months to Aug 202559.7%0.0%0.0%5.2%
12 months to Aug 202667.1%14.4%10.2%8.4%
Duty paid, % of value
Show the numbers
PeriodChinaSingaporeKorea, SouthCanadaAll countries
12 months to Aug 20173.7%n/an/a0.0%0.2%
12 months to Aug 20183.7%n/an/a0.0%0.5%
12 months to Aug 201919.3%n/an/a0.0%4.8%
12 months to Aug 202028.7%n/an/an/a28.7%
12 months to Aug 202128.7%n/an/an/a28.7%
12 months to Aug 202228.7%n/an/a0.0%28.5%
12 months to Aug 202328.7%n/an/a0.0%28.4%
12 months to Aug 202428.7%0.0%n/an/a27.8%
12 months to Aug 202558.7%n/an/a1.6%37.3%
12 months to Aug 202656.6%13.7%14.6%0.0%41.4%
PeriodUS importsDuty paidUS exports
12 months to Aug 2026$5.1M+312%41.4%+4.1 pts$67K−94%
12 months to Aug 2025$1.2M−55%37.3%+9.5 pts$1.2M−40%
12 months to Aug 2024$2.8M−60%27.8%−0.7 pts$2.0M−9.6%
12 months to Aug 2023$7.0M+4.6%28.4%−0.1 pts$2.2M−32%
12 months to Aug 2022$6.7M+104%28.5%−0.2 pts$3.3M−21%
12 months to Aug 2021$3.3M−11%28.7%0.0 pts$4.1M−5.4%
12 months to Aug 2020$3.7M−72%28.7%+23.9 pts$4.4M−68%
12 months to Aug 2019$13.4M−39%4.8%+4.3 pts$13.5M+62%
12 months to Aug 2018$21.9M+65%0.5%+0.3 pts$8.3M−37%
12 months to Aug 2017$13.3M0.2%$13.2M

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
Canada$384K100.0%new$32.83/kg0.0%
All countries$384K100.0%$32.83/kg+214%0.0%−58.7 pts

The 3 largest suppliers had 91.6% 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
Korea, South$24.15/kg$0.37/kg1.5% of price$3.31/kg13.7% of price$27.82/kg
Singapore$28.22/kg$0.27/kg0.9% of price$3.87/kg13.7% of price$32.35/kg
Canada$32.83/kg$0.21/kg0.7% of price$0.00/kg0.0% of price$33.05/kg
All countries$29.00/kg$0.27/kg0.9% of price$2.40/kg8.3% of price$31.67/kg+115%

Landed at a US port, Korea, South was cheapest, at $27.82/kg: 14.0% below Singapore.

How the market is shifting

Singapore gained the most share: 14.4% of US imports over the last 12 months, up from 0.0% in the 12 months before. 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.

  • China
  • Singapore
  • Korea, South
  • Canada
  • All countries
Share of US imports
Show the numbers
MonthChinaSingaporeKorea, SouthCanada
September 2024n/an/an/an/a
October 20240.0%0.0%0.0%0.0%
November 2024n/an/an/an/a
December 20240.0%0.0%0.0%0.0%
January 2025n/an/an/an/a
February 20250.0%0.0%0.0%100.0%
March 2025n/an/an/an/a
April 2025n/an/an/an/a
May 20250.0%0.0%0.0%24.8%
June 20250.0%0.0%0.0%0.0%
July 2025100.0%0.0%0.0%0.0%
August 2025100.0%0.0%0.0%0.0%
September 2025100.0%0.0%0.0%0.0%
October 202599.7%0.0%0.0%0.3%
November 202565.5%34.5%0.0%0.0%
December 202572.2%0.0%0.0%27.8%
January 20260.0%34.3%65.7%0.0%
February 2026n/an/an/an/a
March 20260.0%0.0%0.0%100.0%
April 2026n/an/an/an/a
May 2026100.0%0.0%0.0%0.0%
June 20260.0%72.0%28.0%0.0%
July 2026n/an/an/an/a
August 20260.0%0.0%0.0%100.0%
Duty paid, % of value
Show the numbers
MonthChinaSingaporeKorea, SouthCanadaAll countries
September 2024n/an/an/an/an/a
October 2024n/an/an/an/a3.7%
November 2024n/an/an/an/an/a
December 2024n/an/an/an/a3.7%
January 2025n/an/an/an/an/a
February 2025n/an/an/a3.7%3.7%
March 2025n/an/an/an/an/a
April 2025n/an/an/an/an/a
May 2025n/an/an/a0.0%10.3%
June 2025n/an/an/an/a0.0%
July 202558.7%n/an/an/a58.7%
August 202558.7%n/an/an/a58.7%
September 202558.7%n/an/an/a58.7%
October 202558.7%n/an/a0.0%58.5%
November 202548.7%13.7%n/an/a36.6%
December 202548.7%n/an/a0.0%35.1%
January 2026n/a13.7%15.0%n/a14.6%
February 2026n/an/an/an/an/a
March 2026n/an/an/a0.0%0.0%
April 2026n/an/an/an/an/a
May 202638.7%n/an/an/a38.7%
June 2026n/a13.7%13.7%n/a13.7%
July 2026n/an/an/an/an/a
August 2026n/an/an/a0.0%0.0%

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. October 2025 · Duty paid: all countries 58.7% → 36.6%.
  2. May 2019 · Duty paid: China 13.7% → 28.7%, all countries 13.7% → 28.7%.

Where it enters the US

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

  1. Charleston, SC$3.2M · 61.7%
  2. Houston, TX$1.1M · 21.3%
  3. Port Huron, MI$422K · 8.2%
  4. Newark, NJ$210K · 4.1%
  5. New York, NY$165K · 3.2%

Where US exports go

US exports were $0 in August 2026, and $67K over the last 12 months, down 94% on the 12 months before.

MarketLast 12 monthsSharevs 12 months before
Mexico$47K70.6%−70%
Brazil$17K25.5%−86%
China$3K3.9%new
All countries$67K100.0%−94%

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; 22 have reported 2025 so far.

MarketImportsvs year beforeFrom the USUS share
Germany$3.2Min 2024−55%$00.0%
Korea, South$2.8Min 2025−29%$9100.0%
Thailand$1.3Min 2025+76%$00.0%
Saudi Arabia$1.1Min 2025+32%$1.1M97.1%
Indonesia$956Kin 2025+9.5%$00.0%
India$836Kin 2025+314%$00.0%
Denmark$696Kin 2025−23%$00.0%
Argentina$558Kin 2025+224%$00.0%

The biggest market outside the US is Germany, which imported $3.2M of this product in 2024, none of it from the US.

The US supplies 97.1% of imports into Saudi Arabia, but under 10% into Germany, South Korea and Thailand.

Other products under heading 2903: halogenated derivatives of hydrocarbons. US trade over the 12 months to August 2026.

ProductUS importsUS exports
Vinyl chloride (chloroethylene)HS 2903.21$9K$914.0M
2,3,3,3-tetrafluoropropene (hfo-1234yf), 1,3,3,3-tetrafluoropropene (hfo-1234ze) and (z)-1,1,14,4,4-hexafluoro-2-butene (hfo-1336mzz)HS 2903.51$77.5M$533.0M
1,2-dichloroethane (ethylene dichloride)HS 2903.15$29K$238.7M
Halogenated derivatives of aromatic hydrocarbons, not elsewhere specifiedHS 2903.99$81.6M$145.3M
Halogenated derivatives of acyclic hydrocarbons containing two or more different halogens, not elsewhere specifiedHS 2903.79$48.3M$94.1M
1,1,1,2-tetrafluoroethane (hfc-134a) and 1,1,2,2-tetrafluoroethane (hfc-134)HS 2903.45$60.7M$73.1M
Unsaturated chlorinated derivatives of acyclic hydrocarbons, not elsewhere specifiedHS 2903.29$72.4M$20.6M
Pentafluoroethane (hfc-125), 1,1,1-trifluoroethane (hfc-143a) and 1,1,2-trifluoroethane (hfc-143)HS 2903.44$40.8M$27.3M
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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