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HSChapter 31
U.S. imports of nitrogen-phosphorus fertilizers, nesoi (HS 310559) totaled $5.2M in April 2026, traded with 12 countries.
Nitrogen-Phosphorus Fertilizers, NESOI imports of $5.2M in April 2026 ran 38% below the year-to-date monthly average of $8.4M.
Last updated: April 2026 dataNitrogen-phosphorus fertilizers not elsewhere specified — those combining N and P but not qualifying under the named headings for nitrate-phosphate (310551) or specific ammonium phosphate products — enter under 3105590000. Lithuania and Russia are the leading suppliers, reflecting the Baltic and Eastern European fertilizer manufacturing base that serves export markets. Russian-origin product under this heading warrants the same sanctions and trade-compliance scrutiny applicable to other Russian fertilizer imports, and buyers should maintain robust origin and counterparty documentation.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Products such as urea-ammonium phosphate blends, ammonium polyphosphate solutions, or proprietary NP formulations that don't meet the specific chemical definitions of DAP (310530), MAP (310540), or nitrate-phosphate (310551) typically land in 310559. The residual nature of the heading means classification often requires a detailed chemical analysis to rule out the named headings first.
The key distinction is potassium content: if the fertilizer contains a meaningful, commercially guaranteed level of potassium in addition to nitrogen and phosphorus, it should be classified under 310520 (NPK). If potassium is absent or present only as an incidental trace, 310559 is appropriate. A guaranteed analysis certificate from the manufacturer is the standard supporting document for this determination.
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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 % |
|---|---|---|---|
| 3105590000 | FERTILIZERS CONTAIN NITROGEN AND PHOSPHORUS, NESOI | $5.2M | -- |
FERTILIZERS CONTAIN NITROGEN AND PHOSPHORUS, NESOI
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 3105590000 | FERTILIZERS CONTAIN NITROGEN AND PHOSPHORUS, NESOI | $108.5M |
FERTILIZERS CONTAIN NITROGEN AND PHOSPHORUS, NESOI
173.3K t
| State | Imports | Exports | Balance |
|---|---|---|---|
| Florida | $58K | $92.7M | +$92.7M |
| Minnesota | -- | $9.7M | +$9.7M |
| North Carolina | $4.7M | -- | -$4.7M |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| TAMPA, FL | -- | $80.2M | +$80.2M |
| INTERNATIONAL FALLS-RANIER, MN | -- | $17.9M | +$17.9M |
| WILMINGTON, NC | $4.7M | -- | -$4.7M |