U.S. exports of Nitrogen-Phosphorus Fertilizers, NESOI (HS 310559) totaled $49.2M in August 2026.
Importers of Nitrogen-Phosphorus Fertilizers, NESOI paid $254 in duties in August 2026, an average duty rate of 0.01% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Nitrogen-Phosphorus Fertilizers, NESOI imports of $2.9M in August 2026 ran 37% below the year-to-date monthly average of $4.7M.
Last updated: August 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.
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9 import shipments a month
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.
Subheading 3 of 8 in heading 3105
Subheading 310559 · $49.2M of $313.9M
Trade Directory
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HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Imports for consumption | Average duty rate | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 3105590000 | Fertilizers Contain Nitrogen and Phosphorus, NESOI | $2.9M | 0.0086% | 0.09% | $254 |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 3105590000 | Fertilizers Contain Nitrogen and Phosphorus, NESOI | $49.2M |
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
ImportsExports
Imports
$2.9MYoY · free account
Exports
$49.2MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $59.5M of Nitrogen-Phosphorus Fertilizers, NESOI and exported $933.4M.
Through August 2026. Source: U.S. Census Bureau.
Exports · August 2026
destination
Argentina and Brazil together take 92% of it.
customs district
origin
entry
rate provision · imports
99.9% enters free of duty; duty collected equals 0.01% of imports for consumption.