U.S. imports of Oxalic Acid, Its Salts and Esters (HS 291711) totaled $1.2M in August 2026, imported from 13 countries.
Importers of Oxalic Acid, Its Salts and Esters paid $205K in duties in August 2026, an average duty rate of 16.44% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Oxalic Acid, Its Salts and Esters imports of $1.2M in August 2026 ran 18% above the year-to-date monthly average of $1.1M.
Last updated: August 2026 dataOxalic acid and its derivatives — all classified under the single 10-digit line 2917110000 — are used across metal surface treatment, textile bleaching, pharmaceutical synthesis, and rare-earth processing. Spain leads US supply, a notable concentration given that European producers have historically served specialty and pharmaceutical-grade demand, with China and Taiwan as significant volume sources. Imports from China are subject to Section 301 tariffs, which has reinforced European and Taiwanese sourcing for buyers requiring consistent purity specifications. Oxalic acid is also used in beekeeping as a miticide, and food- or agricultural-use imports may require additional regulatory review.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
33 import shipments a month
Yes. The US schedule consolidates oxalic acid in all its commercial forms — anhydrous, dihydrate, and its salts (such as sodium oxalate and potassium oxalate) and esters — into the single line 2917110000. Importers should specify the exact form and purity on the commercial invoice to support any downstream regulatory or end-use documentation requirements, even though the tariff classification does not vary by form.
Oxalic acid is EPA-registered as a miticide for Varroa mite control in honeybee colonies. Imports intended for this agricultural use must comply with EPA FIFRA labeling and registration requirements, and the product must conform to the registered formulation specifications. Importers should distinguish between technical-grade oxalic acid (industrial use) and the registered pesticide formulation, as the regulatory entry pathway differs. Consult a licensed customs broker familiar with pesticide imports before shipment.
Subheading 9 of 13 in heading 2917
Subheading 291711 · $1.2M of $95.9M
ImportsExports
Imports
$1.2MYoY · free account
Exports
$442KYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $12.2M of Oxalic Acid, Its Salts and Esters and exported $1.9M.
Through August 2026. Source: U.S. Census Bureau.
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 |
|---|---|---|---|---|---|
| 2917110000 | Oxalic Acid, Its Salts and Esters | $1.2M | 16.44% | 99.37% | $205K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2917110000 | Oxalic Acid, Its Salts and Esters | $442K |
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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Imports · August 2026
origin
Spain and China together supply 88% of it. China pays 40.6% duty; Spain 10.0%.
customs district
destination
entry
rate provision · imports
0.6% enters free of duty; duty collected equals 16.44% of imports for consumption.