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SITCSection 6
U.S. imports of quicklime (SITC 66111) totaled $6.2M in July 2026, traded with 16 countries.
Importers of Quicklime paid $19K in duties in July 2026 — an effective duty rate of 9.1% on $210K in dutiable value, based on actual customs collections rather than the published tariff schedule. Quicklime imports of $6.2M in July 2026 ran 17% above the year-to-date monthly average of $5.3M.
Last updated: July 2026 dataProduced by calcining limestone at high temperatures, quicklime (calcium oxide) is a primary industrial chemical used in steel production, water treatment, flue-gas desulfurization, and soil stabilization. Its highly reactive, exothermic nature when exposed to moisture imposes strict packaging and transport requirements — typically bulk pneumatic tankers or moisture-resistant bags — that directly affect landed cost and logistics planning. Domestic production is substantial in the US, so imports tend to be regionally driven by proximity to foreign sources rather than by broad supply-chain diversification.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
918 shipments/mo
Basic heading 388 of 766 in section 6
Basic heading 66111 · $6.2M of $26.7B
Quicklime is highly reactive with water and classified as a corrosive material under DOT hazmat regulations. Shipments must be transported in moisture-proof, sealed containers — typically bulk pneumatic tankers or multi-wall moisture-resistant bags — and must comply with IMDG Code requirements for ocean freight. Importers should confirm that foreign suppliers' packaging meets US DOT standards before booking freight.
Quicklime (calcium oxide, SITC 66111) is the anhydrous product of calcination and is classified separately from slaked lime (calcium hydroxide, SITC 66112), which is produced by adding water to quicklime. End-use sectors often specify one or the other: steel mills and high-temperature processes typically require quicklime, while water treatment and soil stabilization applications more commonly use slaked lime.
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Imports · July 2026
origin
Canada and Mexico together supply 96% of it.
customs district
Census does not publish district detail for this classification system.
destination
Census does not publish state detail for this classification system.
entry
Census does not publish port detail for this classification system.
ImportsExports
Imports
$6.2MYoY · Pro
Exports
$3.8MYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.