HS code · 6-digit subheading
HS Code 2522.20 – Slaked lime; excluding calcium oxide and hydroxide of heading no. 2825
HS code 2522.20 is the 6-digit subheading for slaked lime, excluding calcium oxide and hydroxide of heading no. 2825. It is used for hydrated lime powder, calcium hydroxide for water treatment, agricultural slaked lime, construction-grade slaked lime and industrial calcium hydroxide.
What HS 2522.20 covers
This HS code covers slaked lime, also known as calcium hydroxide (Ca(OH)2), which is produced by adding water to quicklime. It's a versatile industrial chemical widely used across various sectors. In international trade, it's primarily imported by countries with robust construction, environmental, and agricultural industries that may lack sufficient domestic production capacity. Exporters are typically nations with abundant limestone reserves and established processing facilities. Key applications include soil stabilization in construction, water and wastewater treatment (pH adjustment, flocculation), flue gas desulfurization in power plants, and as a component in mortars and plasters. Its trade is driven by industrial demand for its alkaline properties and its role in various chemical processes. Understanding its purity and specific grade is crucial for trade, as different applications require different specifications.
- Covers
- Hydrated lime powder
- Calcium hydroxide for water treatment
- Agricultural slaked lime
- Construction-grade slaked lime
- Industrial calcium hydroxide
- Food-grade slaked lime
- Lime putty
- Examples
- Carmeuse hydrated lime
- Graymont hydrated lime
- Lhoist hydrated lime
- Mississippi Lime hydrated lime
Codes often confused with 2522.20
Common mistake. This code is specifically for slaked lime (calcium hydroxide) and should not be confused with 252210 (quicklime/calcium oxide) or 282590 (other inorganic bases), as 2825 specifically excludes calcium hydroxide of this chapter.
Top exporters and importers of HS code 252220, 2025
In 2025, the largest exporter of HS code 252220 in UN Comtrade data was Germany, with 13% of world exports; the largest importer in UN Comtrade data was France, with 11% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.
Top exporters 2025 · share of world exports
- 1 Germany $33M 13% of world exports
- 2 United Kingdom $23M 8.8% of world exports
- 3 Belgium $22M 8.2% of world exports
World total: $263M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 France $30M 11% of world imports
- 2 Netherlands $25M 9.1% of world imports
- 3 United States $23M 8.3% of world imports
World total: $277M Reported figures on UN Comtrade ↗
How these figures are built
109 countries reported 2025 trade to UN Comtrade in HS 2022, and their own totals are used. Countries that did not report are estimated from what other countries recorded trading with them. Those estimates miss trade with other non-reporting countries, so they can be low, and a non-reporting country can rank higher than shown or be missing from the list. World totals add both and leave out trade between two non-reporting countries. Figures are in current US dollars; reported imports are mostly valued CIF and exports FOB, and exports include re-exports. The UN Comtrade links show the underlying records; they can also list a few reporters left out here (regional groups and older HS editions).
Source: UN Comtrade (United Nations Statistics Division), 2025 annual data.
Brazil NCM code for 2522.20
Brazil does not split HS 2522.20: its NCM code is 2522.20.00.
All Brazil NCM codes in heading 25.22 →
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text is official; the English is our translation.
Questions about HS 2522.20
What is HS code 252220?
HS code 252220 is a 6-digit subheading in the Harmonized System that covers: Slaked lime; excluding calcium oxide and hydroxide of heading no. 2825. This HS code covers slaked lime, also known as calcium hydroxide (Ca(OH)2), which is produced by adding water to quicklime. It's a versatile industrial chemical widely used across various sectors. In international trade, it's primarily imported by countries with robust construction, environmental, and agricultural industries that may lack sufficient domestic production capacity. Exporters are typically nations with abundant limestone reserves and established processing facilities. Key applications include soil stabilization in construction, water and wastewater treatment (pH adjustment, flocculation), flue gas desulfurization in power plants, and as a component in mortars and plasters. Its trade is driven by industrial demand for its alkaline properties and its role in various chemical processes. Understanding its purity and specific grade is crucial for trade, as different applications require different specifications.
What products fall under HS code 252220?
Hydrated lime powder, calcium hydroxide for water treatment, agricultural slaked lime, construction-grade slaked lime, industrial calcium hydroxide, food-grade slaked lime, lime putty
What are common misclassifications for HS code 252220?
This code is specifically for slaked lime (calcium hydroxide) and should not be confused with 252210 (quicklime/calcium oxide) or 282590 (other inorganic bases), as 2825 specifically excludes calcium hydroxide of this chapter.
Which countries are the top exporters of goods under HS code 252220?
In 2025, the top exporters of HS code 252220 in UN Comtrade data were Germany ($33M, 13% of world exports), the United Kingdom ($23M) and Belgium ($22M). World exports came to about $263M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Which countries are the top importers of goods under HS code 252220?
In 2025, the top importers of HS code 252220 in UN Comtrade data were France ($30M, 11% of world imports), the Netherlands ($25M) and the United States ($23M). World imports came to about $277M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
How is HS code 252220 structured?
HS code 252220 is a 6-digit subheading under the Harmonized System. The first 2 digits (25) identify the chapter, digits 3-4 (22) identify the heading, and digits 5-6 (20) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 252220?
In Brazil, HS code 252220 is NCM 2522.20.00. The last two digits are 00 because Brazil does not split this HS code further.