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HSChapter 31
U.S. imports of nitrogenous mineral & chemical fertilizers (nesoi) (HS 310290) totaled $10.4M in April 2026, traded with 14 countries.
Nitrogenous Mineral & Chemical Fertilizers (NESOI) imports of $10.4M in April 2026 ran 64% above the year-to-date monthly average of $6.4M.
Last updated: April 2026 dataNitrogenous fertilizers not elsewhere specified under Chapter 31 — including products such as calcium cyanamide, certain slow-release nitrogen formulations, and other nitrogen compounds used as fertilizers — are captured under 3102900100. Canada, Russia, and the Netherlands are the leading US suppliers of this residual category, which serves as a catch-all for nitrogen fertilizer products that do not fit the more specifically defined headings. Because the category is heterogeneous, classification disputes can arise when a product's nitrogen compound type or mixture composition places it at the boundary with headings 3102210000–3102800000; a binding ruling request may be warranted for novel formulations.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Products classified here include calcium cyanamide, certain polymer-coated or slow-release nitrogen fertilizers, and nitrogen compounds used as fertilizers that do not match the specific chemical descriptions of headings 310221 through 310280. Novel biostimulant-nitrogen blends and industrial-grade nitrogen compounds repurposed as fertilizers may also land here, though each requires individual classification analysis.
A binding ruling is advisable when a product's chemical composition or intended use places it at the boundary between two or more headings — for example, a slow-release urea-formaldehyde condensate that could be argued under either heading 3102 or heading 3105. Filing a ruling request before the first shipment provides classification certainty and protects against retroactive duty assessments.
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| Country | Imports | Exports | Balance |
|---|---|---|---|
| CANADA | $5.4M | $3.0M | -$2.4M |
| NETHERLANDS | $4.8M | $30K | -$4.7M |
| AUSTRALIA | $67K | $1.4M | +$1.3M |
| MEXICO | -- | $845K | +$845K |
| MALAYSIA | -- | $426K | +$426K |
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 |
|---|---|---|---|---|
| 3102900100 | MINERAL/CHEMICAL FERTILIZERS, NITROGENOUS, NESOI | $10.4M | 25.00% | $11K |
MINERAL/CHEMICAL FERTILIZERS, NITROGENOUS, NESOI
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 3102900100 | MINERAL/CHEMICAL FERTILIZERS, NITROGENOUS, NESOI | $6.5M |
MINERAL/CHEMICAL FERTILIZERS, NITROGENOUS, NESOI
5.9K t
| State | Imports | Exports | Balance |
|---|---|---|---|
| Florida | $3.8M | $114K | -$3.7M |
| California | $1.1M | $1.6M | +$462K |
| Ohio | -- | $1.8M | +$1.8M |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| BEAUFORT-MOREHEAD CITY, NC | $3.8M | -- | -$3.8M |
| EASTPORT, ID | $359K | $1.8M | +$1.5M |
| LONG BEACH, CA | -- | $1.4M | +$1.4M |