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HSChapter 29
U.S. imports of salts and esters of tartaric acid (HS 291813) totaled $789K in April 2026, traded with 12 countries.
Importers of Salts and Esters of Tartaric Acid paid $84K in duties in April 2026 — an effective duty rate of 11% on $789K in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: April 2026 dataPotassium bitartrate — widely known in the food industry as cream of tartar — is the commercially dominant product in this heading, classified at 2918132000, but the heading also covers potassium antimony tartrate (tartar emetic, 2918131000), Rochelle salts (potassium sodium tartrate, 2918133000), and other tartaric acid esters (2918135000). Spain leads US imports, consistent with its role as a major wine-producing nation, with Malaysia and Chile also significant sources. Potassium antimony tartrate carries additional regulatory significance as an antiparasitic pharmaceutical precursor, and importers of that specific compound should confirm FDA or DEA requirements before shipment.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Potassium antimony tartrate (2918131000) has pharmaceutical and veterinary applications and may be subject to FDA review depending on its intended use. Importers should verify whether the shipment is classified as a drug or drug precursor, as that determination affects the applicable admissibility pathway and required documentation. Consulting a licensed customs broker or regulatory counsel before importation is advisable.
Malaysia's presence in this heading likely reflects re-export or further processing of tartaric acid derivatives rather than primary wine-byproduct recovery. Importers sourcing from non-wine-producing countries should scrutinize country-of-origin documentation carefully, as the actual origin of the underlying tartaric acid feedstock may differ from the country of export.
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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 |
|---|---|---|---|---|
| 2918132000 | POTASSIUM BITARTRATE (CREAM OF TARTER) | $578K | 10.00% | $58K |
| 2918131000 | POTASSIUM ANTIMONY TARTRATE (TARTER EMETIC) | $187K | 10.00% | $19K |
| 2918133000 | POTASSIUM SODIUM TARTRATE (ROCHELLE SALTS) | $22K | 35.00% | $8K |
| 2918135000 | OTHER ESTERS OF TARTARIC ACID | $3K | 4.37% | $118 |
POTASSIUM BITARTRATE (CREAM OF TARTER)
POTASSIUM ANTIMONY TARTRATE (TARTER EMETIC)
POTASSIUM SODIUM TARTRATE (ROCHELLE SALTS)
OTHER ESTERS OF TARTARIC ACID
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2918130000 | SALTS AND ESTERS OF TARTARIC ACID | $229K |
SALTS AND ESTERS OF TARTARIC ACID
44.7K 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 |
|---|---|---|---|
| New Jersey | $557K | $83K | -$474K |
| New York | $135K | $23K | -$112K |
| California | $80K | $70K | -$10K |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| NEWARK, NJ | $495K | -- | -$495K |
| OAKLAND, CA | $168K | -- | -$168K |
| SAVANNAH, GA | $102K | -- | -$102K |