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Harmonized System
U.S. exports of fertilizers, nes (HS 310590) totaled $11.7M in July 2026.
Importers of Fertilizers, NES paid $16K in duties in July 2026 — an effective duty rate of 9.8% on $161K in dutiable value, based on actual customs collections rather than the published tariff schedule. Fertilizers, NES imports of $6.3M in July 2026 ran 46% below the year-to-date monthly average of $11.6M.
Last updated: July 2026 dataThe catch-all fertilizer heading 310590 captures mineral or chemical fertilizers not classified elsewhere in Chapter 31, including the distinct tariff line for potassium nitrate–sodium nitrate mixtures (3105900010) alongside a broader residual line (3105900050). Russia leads US imports under this heading, with Canada and Chile also significant sources, reflecting global potassium and specialty nutrient trade flows. The heading's breadth means classification disputes are common — importers must confirm that a product's nutrient profile does not place it in a more specific Chapter 31 heading before defaulting to NESOI.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
205 shipments/mo
Tariff line 3105900010 specifically covers fertilizers composed of a potassium nitrate and sodium nitrate mixture. Products that do not meet that specific composition — but still fall outside all other named Chapter 31 headings — are classified under 3105900050. The distinction matters because duty rates and any applicable trade-remedy exposure can differ between the two lines.
Russia's dominance reflects its large-scale production of specialty and compound fertilizers not covered by more specific headings. This concentration creates exposure to sanctions-related trade disruptions and freight volatility. Importers relying heavily on Russian supply should monitor export-control developments and consider contingency sourcing from Canada or Chile.
HSChapter 31
Subheading 3 of 8 in heading 3105
Subheading 310590 · $6.3M of $75.9M
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HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 3105900050 | Other Fertilizers, NESOI | $6.1M | 0.26% | 2.62% | $16K |
| 3105900010 | Fertilizer of Potassium Nitrate-Sodium Nitrate Mix | $122K | 0.00% | 0.00% | -- |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 3105900000 | Fertilizers, NESOI | $11.7M |
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
$6.3MYoY · Pro
Exports
$11.7MYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.
Exports · July 2026
destination
Brazil and Canada together take 46% of it.
customs district
origin
entry
rate provision · imports
97.4% enters free of duty; the effective duty rate is 0.25%.