HSChapter 38
U.S. imports of mixtures and preparations containing perfluorooctane sulfonic acid (pfos), its salts, sulfonamides, or sulfonyl fluoride (HS 382487) totaled $16K in April 2026, traded with 1 country.
Mixtures and Preparations Containing Perfluorooctane Sulfonic Acid (PFOS), Its Salts, Sulfonamides, or Sulfonyl Fluoride imports of $16K in April 2026 ran 60% above the year-to-date monthly average of $10K.
Last updated: April 2026 dataPerfluorooctane sulfonic acid (PFOS) and its derivatives are among the most scrutinized per- and polyfluoroalkyl substances (PFAS) in global trade, listed under the Stockholm Convention and subject to EPA regulatory action under TSCA, including a proposed rule to designate PFOS as a hazardous substance under CERCLA. The single tariff line 3824870000 captures all mixtures in which PFOS, its salts, sulfonamides, or sulfonyl fluoride are the defining constituents. Brazil and South Korea are the leading US import sources for this heading, reflecting specialty chemical and fluorochemical manufacturing capacity in both countries.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
EPA has taken multiple regulatory actions targeting PFOS under TSCA, including significant new use rules (SNURs) that require pre-manufacture or pre-import notification for certain PFOS-containing articles and chemical preparations. Importers should monitor EPA's PFAS action plan and consult regulatory counsel, as new restrictions can take effect with limited lead time.
Heading 382487 is specifically limited to preparations where PFOS, its salts, perfluorooctane sulfonamides, or perfluorooctane sulfonyl fluoride are the active constituents. Mixtures containing other PFAS compounds — such as PFOA or short-chain fluorosurfactants — that do not contain PFOS derivatives would fall outside this heading and be classified elsewhere, typically under the residual heading 382499.
Monthly import values over time
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HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 3824870000 | MIX HALOG HYDROCARBS,PERFLUOROCTNE SULF ACID,ETC.. | $16K | 13.70% | $2K |
MIX HALOG HYDROCARBS,PERFLUOROCTNE SULF ACID,ETC..
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 3824870000 | MIX HALOG HYDROCARBS,PERFLUOROCTNE SULF ACID,ETC.. | $11K |
MIX HALOG HYDROCARBS,PERFLUOROCTNE SULF ACID,ETC..
109 kg
PRODUCTS AND RESIDUALS OF CHEMICAL INDUSTRY, NESOI
HS 382499
DIAGNOSTIC OR LABORATORY REAGENTS INCL KITS, NESOI
HS 382219
CHEM ELEM DOPED, USED IN ELECTRON, DISCS WAFERS ET
HS 381800
SUPPORTED CATALYSTS W PREC METAL/PREC MTL COMPND
HS 381512
SUPPORTED CATALYSTS, NESOI
HS 381519
ADDITIVE FOR LUB OIL CONT PETRO/BITUMINOUS MINOIL
HS 381121
| Port | Imports | Exports | Balance |
|---|---|---|---|
| LAREDO, TX | $16K | -- | -$16K |
| ANCHORAGE, AK | -- | $11K | +$11K |
| NEW ORLEANS, LA | -- | -- | -- |