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HSChapter 29
U.S. imports of oxalic acid, its salts and esters (HS 291711) totaled $1.2M in April 2026, traded with 11 countries.
Importers of Oxalic Acid, Its Salts and Esters paid $202K in duties in April 2026 — an effective duty rate of 17% on $1.2M in dutiable value, based on actual customs collections rather than the published tariff schedule. Oxalic Acid, Its Salts and Esters imports of $1.2M in April 2026 ran 44% above the year-to-date monthly average of $833K.
Last updated: April 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.
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.
| Country | Imports | Exports | Balance |
|---|---|---|---|
| SPAIN | $893K | -- | -$893K |
| CHINA | $198K | -- | -$198K |
| KOREA, SOUTH | $33K | -- | -$33K |
| FRANCE | $29K | -- | -$29K |
| CANADA | $9K | $17K | +$8K |
Monthly import values over time
HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 2917110000 | OXALIC ACID, ITS SALTS AND ESTERS | $1.2M | 17.35% | $202K |
OXALIC ACID, ITS SALTS AND ESTERS
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2917110000 | OXALIC ACID, ITS SALTS AND ESTERS | $70K |
OXALIC ACID, ITS SALTS AND ESTERS
8.6K 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
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| State | Imports | Exports | Balance |
|---|---|---|---|
| California | $846K | $6K | -$840K |
| Indiana | $131K | -- | -$131K |
| Illinois | $57K | -- | -$57K |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| LOS ANGELES, CA | $846K | -- | -$846K |
| NEWARK, NJ | $128K | -- | -$128K |
| LONG BEACH, CA | $72K | -- | -$72K |