U.S. imports of Quicklime (SITC 66111) totaled $5.9M in August 2026, imported from 17 countries.
Importers of Quicklime paid $50K in duties in August 2026, an average duty rate of 0.85% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule.
Last updated: August 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.
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907 import shipments a month
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.
Basic heading 396 of 766 in section 6
Basic heading 66111 · $5.9M of $27.0B
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Imports · August 2026
origin
Canada and Mexico together supply 92% of it. Turkey pays 12.5% duty; Canada 0.0%.
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
$5.9MYoY · free account
Exports
$2.8MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $58.5M of Quicklime and exported $43.6M.
Through August 2026. Source: U.S. Census Bureau.