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HSChapter 28
U.S. imports of anhydrous ammonia (HS 281410) totaled $114.0M in April 2026, traded with 7 countries.
Importers of Anhydrous Ammonia paid $2.3M in duties in April 2026 — an effective duty rate of 9.9% on $23.5M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: April 2026 dataAnhydrous ammonia — pure, water-free NH₃ — is a cornerstone nitrogen source for fertilizer blending and a critical feedstock for industrial chemical synthesis, including nitric acid and explosives-grade ammonium nitrate. Classified under a single 10-digit line (2814100000), it moves in pressurized bulk vessels and is subject to EPA Risk Management Program requirements at the import facility level. Canada dominates US supply by virtue of pipeline and rail proximity, with Trinidad and Tobago and Qatar serving as major seaborne sources. Importers should monitor supply concentration risk given the energy-intensive Haber-Bosch production process that ties global availability tightly to natural gas prices.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Anhydrous ammonia (HTS 2814100000) is pure NH₃ with no water content, transported under pressure as a liquefied gas. Aqueous ammonia (heading 281420) is a water solution and ships as a liquid at ambient pressure. The physical form and water content are the classification-determining factors.
Both countries are major exporters because they have abundant, low-cost natural gas — the primary feedstock for Haber-Bosch ammonia synthesis. When global gas prices spike, production economics tighten and export volumes can shift, making supply diversification and forward contracting important risk-management tools for US importers.
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Monthly import values over time
| Country | Imports | Exports | Balance |
|---|---|---|---|
| CANADA | $90.5M | $3K | -$90.5M |
| NORWAY | -- | $23.9M | +$23.9M |
| MOROCCO | -- | $23.4M | +$23.4M |
| TRINIDAD AND TOBAGO | $23.2M | $4K | -$23.2M |
| JORDAN | -- | $17.5M | +$17.5M |
HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 2814100000 | ANHYDROUS AMMONIA | $114.0M | 9.88% | $2.3M |
ANHYDROUS AMMONIA
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2814100000 | ANHYDROUS AMMONIA | $93.9M |
ANHYDROUS AMMONIA
147.9K t
URANIUM ENRICHED IN U235 ETC. PLUTONIUM ETC.
HS 284420
NATURAL URANIUM & COMPOUNDS, ALLOYS & CERAMICS ETC
HS 284410
ALLOYS, DISPERSIONS,ISOTOPES & COMPOUNDS NES
HS 284443
SILICON, UNDER 99.99% (BY WEIGHT) SILICON
HS 280469
PHOSPHORIC ACID AND POLYPHOSPHORIC ACIDS
HS 280920
SULFURIC ACID; OLEUM
HS 280700
| State | Imports | Exports | Balance |
|---|---|---|---|
| Texas | -- | $82.9M | +$82.9M |
| Iowa | $32.7M | -- | -$32.7M |
| North Dakota | $19.7M | -- | -$19.7M |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| PORTAL, ND | $58.2M | -- | -$58.2M |
| TEXAS CITY, TX | -- | $44.6M | +$44.6M |
| BEAUMONT, TX | -- | $34.3M | +$34.3M |