U.S. imports of Carboxylic Acids with Alcohol Function, NESOI (HS 291819) totaled $7.8M in August 2026, imported from 20 countries.
Importers of Carboxylic Acids with Alcohol Function, NESOI paid $1.7M in duties in August 2026, an average duty rate of 21.21% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule.
Last updated: August 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.
183 import shipments a month
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.
Subheading 5 of 17 in heading 2918
Subheading 291819 · $7.8M of $109.7M
ImportsExports
Imports
$7.8MYoY · free account
Exports
$3.9MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $89.6M of Carboxylic Acids with Alcohol Function, NESOI and exported $61.8M.
Through August 2026. Source: U.S. Census Bureau.
Imports · August 2026
origin
China and India together supply 70% of it. China pays 39.5% duty; South Korea 0.0%.
customs district
destination
entry
rate provision · imports
11.6% enters free of duty; duty collected equals 21.21% of imports for consumption.
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Imports for consumption | Average duty rate | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 2918199000 | Other Non-Arom Carboxy Acids With Oth Oxy Func Etc | $6.5M | 19.96% | 88.02% | $1.3M |
| 2918196000 | Malic Acid | $906K | 26.45% | 86.23% | $240K |
| 2918191200 | Mandelic Acid | $295K | 31.16% | 100.00% | $92K |
| 2918193100 | Other Arom Carboxy Acids Etc (Exc Prod US Note3) | $72K | 26.50% | 100.00% | $19K |
| 2918191500 | Salts and Esters of Mandelic Acid, NESOI | $15K | 23.74% | 100.00% | $4K |
| 2918192000 | Arom Carboxy Acids With Alch Func But W/O Oth Oxy | — | -- | -- | -- |
| 2918191100 | Methyl Ester | — | -- | -- | -- |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2918195000 | Carbox Acid W/ Alcohol & W/O Oxygen Func Etc NESOI | $3.9M |
| 2918191350 | Phenylglycolic Acid, Its Salts and Esters | $10K |
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
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