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HSChapter 29
U.S. imports of carboxylic acids with alcohol function, nesoi (HS 291819) totaled $11.0M in April 2026, traded with 19 countries.
Importers of Carboxylic Acids with Alcohol Function, NESOI paid $903K in duties in April 2026 — an effective duty rate of 17% on $5.4M in dutiable value, based on actual customs collections rather than the published tariff schedule. Carboxylic Acids with Alcohol Function, NESOI imports of $11.0M in April 2026 ran 35% above the year-to-date monthly average of $8.2M.
Last updated: April 2026 dataMandelic acid, malic acid, and related hydroxy-carboxylic acids not elsewhere specified span a wide range of pharmaceutical, food-acidulant, and specialty-chemical applications, making classification precision critical — the US schedule breaks this heading into nine distinct 10-digit lines including methyl ester (2918191100), mandelic acid (2918191200), phenylglycolic acid and its salts and esters (2918191350), malic acid (2918196000), and several aromatic and non-aromatic residual categories. India leads US import supply for this heading, followed by China and France, reflecting the concentration of fine-chemical and pharmaceutical-intermediate manufacturing in South Asia and Europe. Importers should verify whether a specific compound falls under the pharmaceutical-intermediate carve-outs referenced in Additional US Note 3 to Section VI, as that distinction routes goods to different 10-digit lines with potentially different duty treatment.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
The key distinctions are aromatic versus non-aromatic structure and whether the compound is specifically enumerated (e.g., mandelic acid, phenylglycolic acid, malic acid) or falls into a residual basket. Aromatic compounds without other oxygen functions go to 2918192000, while non-aromatic compounds with additional oxygen functions not otherwise specified land in 2918199000. When the compound is a named acid, its specific line takes precedence over any basket provision.
Yes. Several lines within this heading — including 2918193100 — explicitly exclude or include products described in Additional US Note 3 to Section VI, which covers certain chemical compounds subject to special duty treatment. Importers should review the note carefully and confirm with a licensed customs broker whether their specific compound qualifies, as misclassification between the Note 3 and non-Note 3 lines can affect the applicable duty rate.
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Monthly import values over time
| Country | Imports | Exports | Balance |
|---|---|---|---|
| FRANCE | $3.2M | $650K | -$2.5M |
| CHINA | $2.6M | $36K | -$2.6M |
| INDIA | $2.4M | $104K | -$2.3M |
| ITALY | $1.4M | $5K | -$1.4M |
| KOREA, SOUTH | $796K | $373K | -$422K |
HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 2918199000 | OTHER NON-AROM CARBOXY ACIDS WITH OTH OXY FUNC ETC | $9.9M | 14.70% | $670K |
| 2918196000 | MALIC ACID | $760K | 23.63% | $140K |
| 2918191200 | MANDELIC ACID | $253K | 33.88% | $86K |
| 2918191500 | SALTS AND ESTERS OF MANDELIC ACID, NESOI | $16K | 16.50% | $3K |
| 2918191100 | METHYL ESTER | $8K | 40.80% | $3K |
| 2918192000 | AROM CARBOXY ACIDS WITH ALCH FUNC BUT W/O OTH OXY | $2K | 16.51% | $380 |
| 2918193100 | OTHER AROM CARBOXY ACIDS ETC (EXC PROD US NOTE3) | $0 | -- | -- |
OTHER NON-AROM CARBOXY ACIDS WITH OTH OXY FUNC ETC
MALIC ACID
MANDELIC ACID
SALTS AND ESTERS OF MANDELIC ACID, NESOI
METHYL ESTER
AROM CARBOXY ACIDS WITH ALCH FUNC BUT W/O OTH OXY
OTHER AROM CARBOXY ACIDS ETC (EXC PROD US NOTE3)
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2918195000 | CARBOX ACID W/ ALCOHOL & W/O OXYGEN FUNC ETC NESOI | $5.0M |
| 2918191350 | PHENYLGLYCOLIC ACID, ITS SALTS AND ESTERS | $86K |
CARBOX ACID W/ ALCOHOL & W/O OXYGEN FUNC ETC NESOI
1.1M kg
PHENYLGLYCOLIC ACID, ITS SALTS AND ESTERS
14.4K kg
NUCLEIC ACIDS & SALTS; OTHER HETEROCYCLIC CMP, NES
HS 293499
HETEROCYCLIC COMP W NITROGEN HETERO-ATM ONLY NESOI
HS 293399
POLYPEPTIDE PROTEIN& GLYCOPROTEIN HORMONES &DERIV
HS 293719
CMPDS CONT AN UNFUSED PYRIDINE RING ETC NESOI
HS 293339
COMP WITH PYRIMIDINE OR PIPERAZINE RING, NESOI
HS 293359
ANTIBIOTICS, NESOI
HS 294190
| State | Imports | Exports | Balance |
|---|---|---|---|
| Pennsylvania | $3.2M | $18K | -$3.2M |
| California | $1.6M | $499K | -$1.1M |
| New York | $2.0M | -- | -$2.0M |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| PHILADELPHIA INTERNATIONAL AIRPORT, PA | $1.6M | $620K | -$968K |
| PHILADELPHIA, PA | $1.6M | -- | -$1.6M |
| LOS ANGELES, CA | $1.0M | $440K | -$563K |