Official data Source: US Census Bureau international trade data
Track this productDidecyldimethylammonium perfluorooctane sulphonate
In short
- 2 Federal Register notices named this product's tariff codes in the last 12 months.
- US exports were $17K over the last 12 months; the largest market is Mexico, with 51.0%.
US imports, Aug 2026
$0
Last 12 months
$0
Average duty paid
n/a
Top supplier
None
US imports
The US recorded no imports of this product in the 13 months to August 2026.
What changed
- The US recorded no imports of this product in August 2026.
US trade by year
US exports were $17K, down 90%. This code began with the HS 2017 revision in January 2017, taking goods from 2923.90, so its history starts there.
| Period | US imports | Duty paid | US exports |
|---|---|---|---|
| 12 months to Aug 2026 | $0 | n/a | $17K |
| 12 months to Aug 2025 | $0 | n/a | $0−100% |
| 12 months to Aug 2024 | $0 | n/a | $29K+3.6% |
| 12 months to Aug 2023 | $0 | n/a | $28K−57% |
| 12 months to Aug 2022 | $0 | n/a | $66K+73% |
| 12 months to Aug 2021 | $0 | n/a | $38K−24% |
| 12 months to Aug 2020 | $0 | n/a | $50K+876% |
| 12 months to Aug 2019 | $0 | n/a | $5K−97% |
| 12 months to Aug 2018 | $0 | n/a | $172K |
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 2923.40
- 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 US exports go
US exports were $0 in August 2026, and $17K over the last 12 months.
| Market | Last 12 months | Share | vs 12 months before |
|---|---|---|---|
| Mexico | $9K | 51.0% | new |
| Netherlands | $8K | 49.0% | new |
| All countries | $17K | 100.0% | new |
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; 18 have reported 2025 so far.
| Market | Imports | vs year before | From the US | US share |
|---|---|---|---|---|
| Netherlands | $679Kin 2025 | −28% | $0 | 0.0% |
| South Africa | $93Kin 2025 | −2.1% | $0 | 0.0% |
| Angola | $70Kin 2025 | +61% | $0 | 0.0% |
| Egypt | $43Kin 2025 | −41% | $0 | 0.0% |
| Nigeria | $40Kin 2025 | n/a | $0 | 0.0% |
| Dominican Republic | $11Kin 2025 | +94% | $8K | 67.9% |
| Indonesia | $8Kin 2025 | +87% | $0 | 0.0% |
| Belgium | $6Kin 2025 | +13% | $0 | 0.0% |
The biggest market outside the US is the Netherlands, which imported $679K of this product in 2025, none of it from the US.
The US supplies 67.9% of imports into the Dominican Republic, but under 10% into the Netherlands, South Africa and Angola.
Related products
Other products under heading 2923: quaternary ammonium salts and hydroxides; lecithins and other phosphoaminolipids. US trade over the 12 months to August 2026.
| Product | US imports | US exports |
|---|---|---|
| Quaternary ammonium salts and hydroxides, not elsewhere specifiedHS 2923.90 | $114.2M | $140.7M |
| Lecithins and other phosphoaminolipidsHS 2923.20 | $86.1M | $149.4M |
| Choline and its saltsHS 2923.10 | $26.9M | $16.9M |
| Tetraethylammonium perfluorooctane sulphonateHS 2923.30 | $17K | $153K |
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, 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.