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HSChapter 31
U.S. imports of urea, whether or not in aqueous solution (HS 310210) totaled $463.6M in April 2026, traded with 29 countries.
Importers of Urea, Whether or Not in Aqueous Solution paid $43K in duties in April 2026 — an effective duty rate of 19% on $229K in dutiable value, based on actual customs collections rather than the published tariff schedule. Urea, Whether or Not in Aqueous Solution imports of $463.6M in April 2026 ran 21% above the year-to-date monthly average of $383.2M.
Last updated: April 2026 dataUrea is one of the world's most widely traded nitrogen fertilizers and also serves as the active ingredient in Diesel Exhaust Fluid (DEF), used in selective catalytic reduction systems to reduce NOx emissions from diesel engines. The US tariff schedule distinguishes solid urea (3102100010), DEF-grade urea meeting ISO 22241 specifications (3102100030), and other urea forms (3102100050), making the product's physical form and intended use critical to correct classification. Russia and Qatar are the leading suppliers, reflecting their large natural gas reserves that underpin low-cost ammonia and urea production. Importers should be aware that urea from certain origins may be subject to trade-remedy measures, and DEF-grade product must meet strict ISO purity specifications to qualify under that specific tariff line.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
DEF that meets ISO 22241 purity and concentration standards is classified under 3102100030, a dedicated line that distinguishes it from solid urea (3102100010) and other urea forms (3102100050). Importers must be able to document ISO 22241 compliance — typically through a certificate of analysis from the manufacturer — to use that specific line. DEF that does not meet the ISO standard would fall under the residual 'NESOI' line (3102100050).
Urea imports from certain origins have historically been subject to antidumping or countervailing duty orders, and the trade-remedy landscape can shift with new Commerce Department investigations or sunset reviews. Importers sourcing from Russia, Qatar, or other major suppliers should conduct an origin-specific trade-remedy check with CBP or a licensed customs broker before each shipment, as applicable orders and rates change over time.
Monthly import values over time
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HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 3102100010 | SOLID UREA | $425.7M | 18.67% | $43K |
| 3102100050 | UREA, NESOI | $34.6M | -- | -- |
| 3102100030 | DIESEL EXHAUST FLUID (DEF) UREA THT MEET ISO 22241 | $3.3M | -- | -- |
SOLID UREA
UREA, NESOI
DIESEL EXHAUST FLUID (DEF) UREA THT MEET ISO 22241
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 3102100000 | UREA, WHETHER OR NOT IN AQUEOUS SOLUTION | $95.6M |
UREA, WHETHER OR NOT IN AQUEOUS SOLUTION
150.7K t
| Port | Imports | Exports | Balance |
|---|---|---|---|
| NEW ORLEANS, LA | $300.1M | $260K | -$299.9M |
| GALVESTON, TX | $34.8M | -- | -$34.8M |
| GRAMERCY, LA | $28.6M | -- | -$28.6M |