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HSChapter 38
U.S. imports of industrial monocarboxylic fatty acids (nesoi) & acid oils from refining (HS 382319) totaled $27.2M in April 2026, traded with 18 countries.
Importers of Industrial Monocarboxylic Fatty Acids (NESOI) & Acid Oils from Refining paid $2.6M in duties in April 2026 — an effective duty rate of 9.8% on $26.4M in dutiable value, based on actual customs collections rather than the published tariff schedule. Industrial Monocarboxylic Fatty Acids (NESOI) & Acid Oils from Refining imports of $27.2M in April 2026 ran 16% below the year-to-date monthly average of $32.4M.
Last updated: April 2026 dataDerived primarily from the refining of palm, coconut, and other tropical vegetable oils, industrial monocarboxylic fatty acids in this residual heading serve as feedstocks for soaps, detergents, candles, and oleochemical intermediates. Indonesia and Malaysia — the world's dominant palm and palm-kernel oil processors — lead US supply, with India a significant third source, reflecting the tight link between tropical oilseed crushing capacity and fatty acid output. The US schedule separates these goods into two 10-digit lines (3823192000 and 3823194000), with classification hinging on whether the product meets the specific definition of industrial monocarboxylic fatty acids or falls into the broader NESOI residual. Mexico and Honduras also appear as suppliers, often processing imported tropical feedstocks.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Line 3823192000 covers industrial monocarboxylic fatty acids meeting the specific compositional criteria of that description, while 3823194000 is the NESOI (not elsewhere specified or included) residual for those that do not fit the narrower definition. Importers should review the chapter notes and, if necessary, obtain a binding ruling to confirm which line applies to their specific product composition.
Both acid oils from refining and industrial monocarboxylic fatty acids fall within heading 382319, but the specific 10-digit line depends on the product's chemical composition and processing origin. Acid oils — the acidic byproduct stream from vegetable oil refining — may require compositional documentation to distinguish them from distilled fatty acids for customs purposes.
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 |
|---|---|---|---|---|
| 3823192000 | INDUSTRIAL MONOCARBOXYLIC FATTY ACIDS | $25.1M | 9.57% | $2.4M |
| 3823194000 | INDUSTRIAL MONOCARBOXYLIC FATTY ACIDS, NESOI | $2.2M | 13.20% | $224K |
INDUSTRIAL MONOCARBOXYLIC FATTY ACIDS
INDUSTRIAL MONOCARBOXYLIC FATTY ACIDS, NESOI
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 3823194000 | INDUSTRIAL MONOCARBOXYLIC FATTY ACIDS, NESOI | $4.8M |
| 3823192000 | INDUSTRIAL MONOCARBOXYLIC FATTY ACIDS | $1.5M |
INDUSTRIAL MONOCARBOXYLIC FATTY ACIDS, NESOI
1.5M kg
INDUSTRIAL MONOCARBOXYLIC FATTY ACIDS
725.4K 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
| State | Imports | Exports | Balance |
|---|---|---|---|
| California | $8.6M | -- | -$8.6M |
| Maryland | $6.7M | $76K | -$6.6M |
| Michigan | $2.8M | -- | -$2.8M |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| BALTIMORE, MD | $8.7M | -- | -$8.7M |
| STOCKTON, CA | $5.5M | -- | -$5.5M |
| NEWARK, NJ | $3.1M | -- | -$3.1M |