U.S. imports of Fertilizers Containing Nitrates and Phosphates (HS 310551) totaled $9.5M in August 2026, imported from 11 countries.
Importers of Fertilizers Containing Nitrates and Phosphates paid $801 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. Fertilizers Containing Nitrates and Phosphates imports of $9.5M in August 2026 ran 633% above the year-to-date monthly average of $1.3M.
Last updated: August 2026 dataNitrate-phosphate compound fertilizers — combining nitrogen in nitrate form with phosphorus — occupy a distinct agronomic niche, particularly in European-style farming systems where nitrate-based nitrogen is preferred over urea. All US imports enter under a single line, 3105510000. Senegal is the leading supplier under this heading, an unusual sourcing pattern that reflects specific blending or processing arrangements rather than large-scale domestic consumption. Canada and Italy are secondary sources.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
7 import shipments a month
Heading 310551 specifically covers fertilizers containing nitrates and phosphates — meaning the nitrogen component is in nitrate form. Heading 310559 captures all other nitrogen-phosphorus fertilizer combinations not elsewhere specified, including those where nitrogen is present as ammonium or urea rather than as a nitrate salt.
High-nitrogen nitrate fertilizers may be subject to DHS/ATF reporting requirements under the Chemical Facility Anti-Terrorism Standards (CFATS) or EPA Risk Management Program rules depending on concentration and quantity. Importers handling large volumes should verify whether their specific product formulation triggers any of these thresholds in addition to standard CBP entry requirements.
Subheading 4 of 8 in heading 3105
Subheading 310551 · $9.5M of $86.1M
ImportsExports
Imports
$9.5MYoY · free account
Exports
$7.0MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $11.2M of Fertilizers Containing Nitrates and Phosphates and exported $85.2M.
Through August 2026. Source: U.S. Census Bureau.
Trade Directory
List your company under HS 310551 — Fertilizers Containing Nitrates and Phosphates, so the companies trading it can find you. Be the first supplier listed.
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 |
|---|---|---|---|---|---|
| 3105510000 | Fertilizers Contain Nitrates and Phosphates | $9.5M | 0.0084% | 0.21% | $801 |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 3105510000 | Fertilizers Contain Nitrates and Phosphates | $7.0M |
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.
Imports · August 2026
origin
Jordan and India together supply 99% of it.
customs district
destination
entry
rate provision · imports
99.8% enters free of duty; duty collected equals 0.01% of imports for consumption.