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HSChapter 31
U.S. imports of fertilizers containing nitrates and phosphates (HS 310551) totaled $85K in April 2026, traded with 8 countries.
Fertilizers Containing Nitrates and Phosphates imports of $85K in April 2026 ran 50% below the year-to-date monthly average of $170K.
Last updated: April 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.
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.
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Monthly import values over time
| Country | Imports | Exports | Balance |
|---|---|---|---|
| CANADA | $27K | $11.2M | +$11.2M |
| PHILIPPINES | -- | $359K | +$359K |
| PAKISTAN | -- | $70K | +$70K |
| ITALY | $56K | -- | -$56K |
| MEXICO | $3K | $40K | +$38K |
HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % |
|---|---|---|---|
| 3105510000 | FERTILIZERS CONTAIN NITRATES AND PHOSPHATES | $85K | -- |
FERTILIZERS CONTAIN NITRATES AND PHOSPHATES
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 3105510000 | FERTILIZERS CONTAIN NITRATES AND PHOSPHATES | $11.7M |
FERTILIZERS CONTAIN NITRATES AND PHOSPHATES
17.0K t
| Port | Imports | Exports | Balance |
|---|---|---|---|
| INTERNATIONAL FALLS-RANIER, MN | -- | $3.1M | +$3.1M |
| PEMBINA, ND | -- | $2.6M | +$2.6M |
| SWEETGRASS, MT | -- | $2.1M | +$2.1M |