U.S. exports of Potassic Mineral or Chemical Fertilizers, N.E.S. (SITC 56239) totaled $11.2M in August 2026.
Importers of Potassic Mineral or Chemical Fertilizers, N.E.S. paid $4K in duties in August 2026, an average duty rate of 0.69% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Potassic Mineral or Chemical Fertilizers, N.E.S. imports of $578K in August 2026 ran 83% below the year-to-date monthly average of $3.3M.
Last updated: August 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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32 import shipments a month
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.
Basic heading 231 of 465 in section 5
Basic heading 56239 · $11.2M of $26.2B
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Exports · August 2026
destination
Canada and Colombia together take 68% 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
$578KYoY · free account
Exports
$11.2MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $39.9M of Potassic Mineral or Chemical Fertilizers, N.E.S. and exported $114.2M.
Through August 2026. Source: U.S. Census Bureau.