Official data Source: US Census Bureau international trade data
Track this productPerhalogenated derivatives of acyclic hydrocarbons containing only fluorine and chlorine
In short
- The US imported $3.3M of this product over the 12 months to August 2026, down 45% on the year before.
- China is the largest supplier, with 100.0% of US imports.
- Duty paid averaged 16.2% of the value of imports in August 2026, up 6.0 points on a year earlier.
- China is gaining share: 95.2% over the last 12 months, up from 81.2%.
- 2 Federal Register notices named this product's tariff codes in the last 12 months.
- US exports were $1.3M over the last 12 months; the largest market is Belgium, with 45.2%.
US imports, Aug 2026
$545K
↑ +134% vs Aug 2025
Last 12 months
$3.3M
↓ −45% vs the 12 months before
Average duty paid
16.2%
↑ +6.0 pts vs Aug 2025
Top supplier
China
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.
Show the numbers
| Month | US imports |
|---|---|
| August 2025 | $233K |
| September 2025 | $13K |
| October 2025 | $166K |
| November 2025 | $91K |
| December 2025 | $154K |
| January 2026 | $161K |
| February 2026 | $16K |
| March 2026 | $1.1M |
| April 2026 | $316K |
| May 2026 | $149K |
| June 2026 | $149K |
| July 2026 | $464K |
| August 2026 | $545K |
What changed
- US imports were $545K in August 2026, up 18% from July 2026 and up 134% from August 2025.
- Over the 12 months to August 2026 they totalled $3.3M, down 45% 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 China fell 68% since July 2026, to $2.81/kg.
- Duty paid on imports from China rose from 7.8% to 16.2% of their value since July 2026.
US trade by year
US imports were $3.3M in the 12 months to Aug 2026, down 53% on the 12 months to Aug 2017. US exports were $1.3M, down 54%. 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.
Show the numbers
| Period | US imports |
|---|---|
| 12 months to Aug 2017 | $6.9M |
| 12 months to Aug 2018 | $10.4M |
| 12 months to Aug 2019 | $9.0M |
| 12 months to Aug 2020 | $14.1M |
| 12 months to Aug 2021 | $16.9M |
| 12 months to Aug 2022 | $27.8M |
| 12 months to Aug 2023 | $28.4M |
| 12 months to Aug 2024 | $13.0M |
| 12 months to Aug 2025 | $5.9M |
| 12 months to Aug 2026 | $3.3M |
- China
- Taiwan
- Japan
- All countries
Show the numbers
| Period | China | Taiwan | Japan |
|---|---|---|---|
| 12 months to Aug 2017 | 97.5% | 0.0% | 2.0% |
| 12 months to Aug 2018 | 98.4% | 0.0% | 1.6% |
| 12 months to Aug 2019 | 98.2% | 0.0% | 1.6% |
| 12 months to Aug 2020 | 58.1% | 0.0% | 41.9% |
| 12 months to Aug 2021 | 41.6% | 0.0% | 58.1% |
| 12 months to Aug 2022 | 52.8% | 0.0% | 26.8% |
| 12 months to Aug 2023 | 52.7% | 0.0% | 14.6% |
| 12 months to Aug 2024 | 94.1% | 0.0% | 0.8% |
| 12 months to Aug 2025 | 81.2% | 0.0% | 1.7% |
| 12 months to Aug 2026 | 95.2% | 2.8% | 2.0% |
Show the numbers
| Period | China | Taiwan | Japan | All countries |
|---|---|---|---|---|
| 12 months to Aug 2017 | 3.7% | n/a | 3.7% | 3.7% |
| 12 months to Aug 2018 | 3.7% | n/a | 3.7% | 3.7% |
| 12 months to Aug 2019 | 3.7% | n/a | 3.7% | 3.7% |
| 12 months to Aug 2020 | 3.7% | n/a | 3.7% | 3.7% |
| 12 months to Aug 2021 | 3.7% | n/a | 3.7% | 3.7% |
| 12 months to Aug 2022 | 3.7% | n/a | 3.7% | 2.9% |
| 12 months to Aug 2023 | 3.7% | n/a | 3.7% | 3.6% |
| 12 months to Aug 2024 | 3.7% | n/a | 3.7% | 3.5% |
| 12 months to Aug 2025 | 6.9% | n/a | 7.5% | 6.1% |
| 12 months to Aug 2026 | 14.7% | 0.0% | 14.7% | 14.3% |
| Period | US imports | Duty paid | US exports |
|---|---|---|---|
| 12 months to Aug 2026 | $3.3M−45% | 14.3%+8.1 pts | $1.3M−24% |
| 12 months to Aug 2025 | $5.9M−54% | 6.1%+2.6 pts | $1.7M−43% |
| 12 months to Aug 2024 | $13.0M−54% | 3.5%−0.1 pts | $3.0M−45% |
| 12 months to Aug 2023 | $28.4M+2.1% | 3.6%+0.7 pts | $5.5M−17% |
| 12 months to Aug 2022 | $27.8M+64% | 2.9%−0.7 pts | $6.7M−14% |
| 12 months to Aug 2021 | $16.9M+20% | 3.7%0.0 pts | $7.7M−43% |
| 12 months to Aug 2020 | $14.1M+57% | 3.7%0.0 pts | $13.6M+203% |
| 12 months to Aug 2019 | $9.0M−14% | 3.7%0.0 pts | $4.5M+51% |
| 12 months to Aug 2018 | $10.4M+51% | 3.7%0.0 pts | $3.0M+2.5% |
| 12 months to Aug 2017 | $6.9M | 3.7% | $2.9M |
Who supplies the US
August 2026. Small figures under each value are the change from August 2025.
| Country | US imports | Share | Average price | Duty paid | Last 13 months |
|---|---|---|---|---|---|
| China | $545K | 100.0%+73.1 pts | $2.81/kg−97% | 16.2%+16.2 pts | |
| All countries | $545K | 100.0% | $2.81/kg−91% | 16.2%+6.0 pts |
The 3 largest suppliers had 100.0% of US imports over the last 12 months.
How the market is shifting
China gained the most share: 95.2% of US imports over the last 12 months, up from 81.2% in the 12 months before. The charts show September 2024 to August 2026 for the 3 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
- Taiwan
- Japan
- All countries
Show the numbers
| Month | China | Taiwan | Japan |
|---|---|---|---|
| September 2024 | 98.6% | 0.0% | 1.4% |
| October 2024 | 99.8% | 0.0% | 0.2% |
| November 2024 | 24.1% | 0.0% | 2.8% |
| December 2024 | 0.0% | 0.0% | 100.0% |
| January 2025 | 100.0% | 0.0% | 0.0% |
| February 2025 | 95.7% | 0.0% | 4.3% |
| March 2025 | 0.0% | 0.0% | 4.5% |
| April 2025 | 63.4% | 0.0% | 3.8% |
| May 2025 | 0.0% | 0.0% | 3.4% |
| June 2025 | 94.2% | 0.0% | 5.8% |
| July 2025 | 56.1% | 0.0% | 4.3% |
| August 2025 | 26.9% | 0.0% | 3.4% |
| September 2025 | 0.0% | 0.0% | 100.0% |
| October 2025 | 93.7% | 0.0% | 6.3% |
| November 2025 | 0.0% | 100.0% | 0.0% |
| December 2025 | 100.0% | 0.0% | 0.0% |
| January 2026 | 93.5% | 0.0% | 6.5% |
| February 2026 | 0.0% | 0.0% | 100.0% |
| March 2026 | 98.5% | 0.0% | 1.5% |
| April 2026 | 100.0% | 0.0% | 0.0% |
| May 2026 | 100.0% | 0.0% | 0.0% |
| June 2026 | 100.0% | 0.0% | 0.0% |
| July 2026 | 100.0% | 0.0% | 0.0% |
| August 2026 | 100.0% | 0.0% | 0.0% |
Show the numbers
| Month | China | Taiwan | Japan | All countries |
|---|---|---|---|---|
| September 2024 | 3.7% | n/a | 3.7% | 3.7% |
| October 2024 | 3.7% | n/a | 3.7% | 3.7% |
| November 2024 | 3.7% | n/a | 3.7% | 1.0% |
| December 2024 | n/a | n/a | 3.7% | 3.7% |
| January 2025 | 3.7% | n/a | n/a | 3.7% |
| February 2025 | 13.7% | n/a | 3.7% | 13.3% |
| March 2025 | n/a | n/a | 3.7% | 1.5% |
| April 2025 | 23.7% | n/a | 0.0% | 15.0% |
| May 2025 | n/a | n/a | 13.7% | 0.5% |
| June 2025 | 33.7% | n/a | 13.7% | 32.5% |
| July 2025 | 33.7% | n/a | 13.7% | 19.5% |
| August 2025 | 0.0% | n/a | 18.7% | 10.2% |
| September 2025 | n/a | n/a | 15.0% | 15.0% |
| October 2025 | 33.7% | n/a | 15.0% | 32.5% |
| November 2025 | n/a | 0.0% | n/a | 0.0% |
| December 2025 | 23.7% | n/a | n/a | 23.7% |
| January 2026 | 23.7% | n/a | 15.0% | 23.1% |
| February 2026 | n/a | n/a | 15.0% | 15.0% |
| March 2026 | 12.1% | n/a | 13.7% | 12.1% |
| April 2026 | 13.3% | n/a | n/a | 13.3% |
| May 2026 | 13.7% | n/a | n/a | 13.7% |
| June 2026 | 13.7% | n/a | n/a | 13.7% |
| July 2026 | 7.8% | n/a | n/a | 7.8% |
| August 2026 | 16.2% | n/a | n/a | 16.2% |
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.
- February 2026 · Duty paid: China 23.7% → 13.3%, all countries 23.7% → 13.3%.
- April 2025 · Duty paid: all countries 3.7% → 17.3%.
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 2903.77
- Notice of Action: Brazil's Acts, Policies, and Practices Related to Digital Trade and Electronic Payment Services; Unfair, Preferential Tariffs; Anti-Corruption Enforcement; Intellectual Property Protection; Ethanol Market Access; and Illegal Deforestation
- Implementing Certain Tariff-Related Elements of the Framework for a United States-Switzerland-Liechtenstein Agreement on Fair, Balanced, and Reciprocal Trade
Where it enters the US
Main ports of entry over the 12 months to August 2026: US imports and share.
Where US exports go
US exports were $0 in August 2026, down 100% from August 2025, and $1.3M over the last 12 months, down 24% on the 12 months before. Fastest-growing market with 3% or more of US exports: Japan, up 441%.
| Market | Last 12 months | Share | vs 12 months before |
|---|---|---|---|
| Belgium | $598K | 45.2% | −32% |
| Mexico | $236K | 17.8% | −20% |
| Brazil | $162K | 12.3% | +16% |
| Japan | $146K | 11.0% | +441% |
| Israel | $136K | 10.3% | +53% |
| United Kingdom | $27K | 2.1% | 0.0% |
| Bermuda | $9K | 0.7% | new |
| El Salvador | $6K | 0.4% | new |
| Germany | $3K | 0.2% | new |
| All countries | $1.3M | 100.0% | −24% |
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; 34 have reported 2025 so far.
| Market | Imports | vs year before | From the US | US share |
|---|---|---|---|---|
| Romania | $7.5Min 2025 | +221% | $0 | 0.0% |
| Algeria | $5.8Min 2024 | n/a | $0 | 0.0% |
| Japan | $4.1Min 2025 | −0.7% | $0 | 0.0% |
| Austria | $3.9Min 2025 | −0.3% | $79 | 0.0% |
| Italy | $1.5Min 2025 | −44% | $0 | 0.0% |
| Poland | $949Kin 2025 | +697629% | $0 | 0.0% |
| Hungary | $899Kin 2025 | +264342% | $0 | 0.0% |
| France | $825Kin 2025 | +302% | $639K | 77.5% |
The biggest market outside the US is Romania, which imported $7.5M of this product in 2025, none of it from the US.
The US supplies 77.5% of imports into France, but under 10% into Romania, Algeria and Japan.
Of these, imports into Romania grew fastest: up 221% from 2024 to 2025.
Related products
Other products under heading 2903: halogenated derivatives of hydrocarbons. US trade over the 12 months to August 2026.
| Product | US imports | US 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.
- 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.