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HSChapter 31
U.S. imports of calcium ammonium nitrate (can) — ammonium nitrate & calcium carbonate mixtures (HS 310240) totaled $1.1M in July 2026, traded with 4 countries.
Calcium Ammonium Nitrate (CAN) — Ammonium Nitrate & Calcium Carbonate Mixtures imports of $1.1M in July 2026 ran 12% above the year-to-date monthly average of $976K.
Last updated: July 2026 dataCalcium ammonium nitrate (CAN) — a mixture of ammonium nitrate with calcium carbonate — is a widely used European-style nitrogen fertilizer prized for its lower explosion risk compared with pure ammonium nitrate, making it the preferred form in many markets. Classified under 3102400000, it enters the US primarily from Canada, the Netherlands, and Germany. Because it still contains ammonium nitrate, DHS CFATS and EPA reporting thresholds may apply depending on the AN content percentage, and importers should confirm whether a given formulation crosses regulatory trigger levels.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
80 shipments/mo
Regulatory thresholds vary by agency and are subject to change, but DHS CFATS and EPA RMP rules each set specific weight-percentage and quantity thresholds for ammonium nitrate-containing materials. Importers should obtain the supplier's certificate of analysis confirming the AN content and consult with a regulatory compliance specialist to determine whether facility registration or reporting obligations apply.
Pure ammonium nitrate (with or without aqueous solution) falls under 3102300000, while mixtures of ammonium nitrate with calcium carbonate are specifically provided for under 3102400000. The calcium carbonate content is the key distinguishing factor; a product marketed as CAN should be supported by a composition certificate to substantiate the correct heading.
Subheading 7 of 9 in heading 3102
Subheading 310240 · $1.1M of $196.8M
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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 |
|---|---|---|---|---|
| 3102400000 | Mixtures of Ammonium Nitrate W/ Calcium Carbonate | $1.1M | 0.00% | 0.00% |
ImportsExports
Imports
$1.1MYoY · Pro
Exports
$0YoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.
Imports · July 2026
origin
Canada and Germany together supply 100% of it.
customs district
destination
entry
rate provision · imports
100.0% enters free of duty; the effective duty rate is 0.00%.