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SITCSection 5
U.S. exports of potassic mineral or chemical fertilizers, n.e.s. (SITC 56239) totaled $8.0M in July 2026.
Importers of Potassic Mineral or Chemical Fertilizers, N.E.S. paid $17K in duties in July 2026 — an effective duty rate of 21% on $79K in dutiable value, based on actual customs collections rather than the published tariff schedule. Potassic Mineral or Chemical Fertilizers, N.E.S. imports of $6.0M in July 2026 ran 62% above the year-to-date monthly average of $3.7M.
Last updated: July 2026 dataA residual catch-all for potassic fertilizers not elsewhere specified under SITC, this heading captures potassium-bearing mineral or chemical fertilizer products that do not fit the dedicated potassium chloride or potassium sulfate categories — including blended or less-common potassium salts used in specialty agriculture. Classification here requires confirming that the product's primary fertilizing element is potassium and that it falls outside the more specific potassic headings. Importers dealing in novel or blended potassic inputs should pay close attention to the N.E.S. boundary to avoid misclassification.
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53 shipments/mo
Basic heading 296 of 465 in section 5
Basic heading 56239 · $6.0M of $28.9B
Products classified here include less-common potassium salts and blended potassic materials that do not qualify as potassium chloride or potassium sulfate in their pure forms. Examples can include potassium nitrate when used primarily as a fertilizer, or certain natural mineral potassium concentrates not meeting the specifications of the dedicated headings.
Customs authorities typically require a manufacturer's certificate of analysis specifying the elemental composition, including the percentage of K₂O (potassium oxide equivalent), to substantiate classification in a potassic heading. A licensed customs broker can advise on whether a binding ruling request is warranted for novel formulations.
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Exports · July 2026
destination
Canada and Honduras together take 58% of it.
customs district
Census does not publish district detail for this classification system.
origin
Census does not publish state detail for this classification system.
entry
Census does not publish port detail for this classification system.
ImportsExports
Imports
$6.0MYoY · Pro
Exports
$8.0MYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.