U.S. imports of Selected Carboxylic Acids (HS 291800) totaled $4.1M in August 2026, imported from 1 country.
Importers of Selected Carboxylic Acids paid $10K in duties in August 2026, an average duty rate of 0.24% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Selected Carboxylic Acids imports of $4.1M in August 2026 ran 23% below the year-to-date monthly average of $5.3M.
Last updated: August 2026 dataClassified under a single 10-digit line (2918000000), this heading functions as a statistical catch-all for certain carboxylic acids that are enumerated separately in US trade schedules. Canada is the dominant US supplier under this heading. Because the heading consolidates chemically distinct compounds, precise product identification at the time of entry is essential to confirm that the article does not belong in a more specific subheading within Chapter 29.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
175 import shipments a month
This heading captures carboxylic acids that are specifically enumerated in the US tariff schedule but do not fit the more detailed subheadings within Chapter 29. If a product has a dedicated HS6 or 10-digit line elsewhere in Chapter 29, it should be classified there; this heading applies only when the US schedule explicitly directs the article to 2918000000.
Standard commercial entry documentation applies — commercial invoice, packing list, and bill of lading. For industrial-grade acids, a Safety Data Sheet (SDS) is advisable. If the acid has pharmaceutical or food-additive applications, additional FDA review may be triggered; consult a licensed customs broker to confirm the correct entry pathway.
Subheading 9 of 17 in heading 2918
Subheading 291800 · $4.1M of $109.7M
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 |
|---|---|---|---|---|---|
| 2918000000 | Selected Carboxylic Acids | $4.1M | 0.24% | 1.71% | $10K |
Imports
Imports
$4.1MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $62.7M of Selected Carboxylic Acids.
Through August 2026. Source: U.S. Census Bureau.
Trade Directory
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Imports · August 2026
origin
customs district
destination
entry
rate provision · imports
98.3% enters free of duty; duty collected equals 0.24% of imports for consumption.