HS code · 6-digit subheading
HS Code 2522.10 – Quicklime; excluding calcium oxide and hydroxide of heading no. 2825
HS code 2522.10 is the 6-digit subheading for quicklime, excluding calcium oxide and hydroxide of heading no. 2825. It is used for quicklime lumps, crushed quicklime, pulverized quicklime, metallurgical quicklime and chemical-grade quicklime.
What HS 2522.10 covers
This HS code covers quicklime, which is primarily calcium oxide (CaO) produced by calcining limestone. It's a highly reactive and versatile chemical commodity traded globally, essential for a wide array of industrial processes. Major importers are countries with robust steel, chemical, construction, and environmental industries. Quicklime is extensively used as a flux in steelmaking, for water treatment, in the production of chemicals, and in construction for soil stabilization and mortar. Exporters are typically nations with abundant limestone reserves (252100) and the energy-intensive kilns required for its production. Key considerations in trade include its purity, reactivity, and particle size. Due to its hygroscopic nature and reactivity, quicklime requires careful handling and specialized transportation. Its global demand is a strong indicator of industrial activity and environmental protection efforts, as it plays a critical role in many foundational processes.
- Covers
- Quicklime lumps
- Crushed quicklime
- Pulverized quicklime
- Metallurgical quicklime
- Chemical-grade quicklime
- Water treatment quicklime
- Construction quicklime
- Examples
- Carmeuse Quicklime
- Graymont Quicklime
- Lhoist Quicklime
- Mississippi Lime Quicklime
Codes often confused with 2522.10
Common mistake. This code is often confused with 252220 (slaked lime) because both are lime products, but 252210 is the unhydrated, highly reactive form. It's also important to distinguish it from calcium oxide of heading 2825, which covers chemically pure calcium oxide, whereas 252210 is industrial-grade quicklime.
Top exporters and importers of HS code 252210, 2025
In 2025, the largest exporter of HS code 252210 in UN Comtrade data was France, with 14% of world exports; the largest importer in UN Comtrade data was India, with 8.8% 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 France $160M 14% of world exports
- 2 Germany $148M 13% of world exports
- 3 United Arab Emirates* ~$70M 6.0% of world exports · partner records ↗
World total: $1.2B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 India $102M 8.8% of world imports
- 2 Chile $89M 7.7% of world imports
- 3 Finland $89M 7.6% of world imports
World total: $1.2B 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 marked * did not, so their figures add up what other countries recorded trading with them, and their exports are valued at buyers' CIF prices. 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 2522.10
Brazil does not split HS 2522.10: its NCM code is 2522.10.00.
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 2522.10
What is HS code 252210?
HS code 252210 is a 6-digit subheading in the Harmonized System that covers: Quicklime; excluding calcium oxide and hydroxide of heading no. 2825. This HS code covers quicklime, which is primarily calcium oxide (CaO) produced by calcining limestone. It's a highly reactive and versatile chemical commodity traded globally, essential for a wide array of industrial processes. Major importers are countries with robust steel, chemical, construction, and environmental industries. Quicklime is extensively used as a flux in steelmaking, for water treatment, in the production of chemicals, and in construction for soil stabilization and mortar. Exporters are typically nations with abundant limestone reserves (252100) and the energy-intensive kilns required for its production. Key considerations in trade include its purity, reactivity, and particle size. Due to its hygroscopic nature and reactivity, quicklime requires careful handling and specialized transportation. Its global demand is a strong indicator of industrial activity and environmental protection efforts, as it plays a critical role in many foundational processes.
What products fall under HS code 252210?
Quicklime lumps, Crushed quicklime, Pulverized quicklime, Metallurgical quicklime, Chemical-grade quicklime, Water treatment quicklime, Construction quicklime
What are common misclassifications for HS code 252210?
This code is often confused with 252220 (slaked lime) because both are lime products, but 252210 is the unhydrated, highly reactive form. It's also important to distinguish it from calcium oxide of heading 2825, which covers chemically pure calcium oxide, whereas 252210 is industrial-grade quicklime.
Which countries are the top exporters of goods under HS code 252210?
In 2025, the top exporters of HS code 252210 in UN Comtrade data were France ($160M, 14% of world exports), Germany ($148M) and the United Arab Emirates (about $70M). World exports came to about $1.2B, 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 252210?
In 2025, the top importers of HS code 252210 in UN Comtrade data were India ($102M, 8.8% of world imports), Chile ($89M) and Finland ($89M). World imports came to about $1.2B, 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 252210 structured?
HS code 252210 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 (10) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 252210?
In Brazil, HS code 252210 is NCM 2522.10.00. The last two digits are 00 because Brazil does not split this HS code further.