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SITCSection 6
U.S. imports of quicklime (SITC 66111) totaled $4.8M in April 2026, traded with 13 countries.
Importers of Quicklime paid $18K in duties in April 2026 — an effective duty rate of 6.8% on $259K in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: April 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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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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| Country | Imports | Exports | Balance |
|---|---|---|---|
| CANADA | $3.0M | $4.1M | +$1.1M |
| MEXICO | $1.5M | $119K | -$1.4M |
| UNITED KINGDOM | $124K | -- | -$124K |
| EGYPT | $87K | -- | -$87K |
| OMAN | $16K | -- | -$16K |
Monthly import values over time