HS code · 6-digit subheading
HS Code 2524.10 – Asbestos; crocidolite (blue asbestos)
HS code 2524.10 is the 6-digit subheading for asbestos, crocidolite (blue asbestos). It is used for raw crocidolite fibers, crocidolite-containing insulation (historical), crocidolite-containing brake linings (historical) and crocidolite-containing cement products (historical).
What HS 2524.10 covers
Crocidolite, commonly known as blue asbestos, is a highly hazardous fibrous mineral characterized by its exceptional tensile strength and resistance to acids. Due to its severe health risks, particularly its strong link to mesothelioma and other cancers, its mining, processing, and use are banned or severely restricted in the vast majority of countries worldwide. International trade in crocidolite is virtually non-existent, with strict prohibitions enforced under international conventions like the Rotterdam Convention. Any remaining trade would be illicit or for highly controlled, specialized research purposes, making it a commodity primarily of historical significance rather than an active part of modern global commerce.
- Covers
- Raw crocidolite fibers
- Crocidolite-containing insulation (historical)
- Crocidolite-containing brake linings (historical)
- Crocidolite-containing cement products (historical)
- Examples
- (No current legitimate examples due to bans)
Codes often confused with 2524.10
Common mistake. Must be carefully distinguished from other asbestos types (252490) due to its unique chemical composition and particularly high toxicity, though all asbestos types are now heavily regulated.
Top exporters and importers of HS code 252410, 2025
In 2025, the largest exporter of HS code 252410 in UN Comtrade data was the United Kingdom, with 93% of world exports; the largest importer in UN Comtrade data was Guatemala, with 51% of world imports. Mexico reports $284M of its chapter 25 exports without product detail (confidential), so it may also belong among the top exporters.
Top exporters 2025 · share of world exports
- 1 United Kingdom $1K 93% of world exports
- 2 Russia* ~$101 7.1% of world exports · partner records ↗
Mexico reports $284M of its chapter 25 exports without product detail (confidential), so it may also belong among the top exporters.
World total: $1K Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Guatemala $2K 51% of world imports
- 2 Kazakhstan $2K 43% of world imports
- 3 France $282 6.4% of world imports
World total: $4K 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 2524.10
Brazil does not split HS 2524.10: its NCM code is 2524.10.00.
All Brazil NCM codes in heading 25.24 →
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text is official; the English is our translation.
Questions about HS 2524.10
What is HS code 252410?
HS code 252410 is a 6-digit subheading in the Harmonized System that covers: Asbestos; crocidolite (blue asbestos). Crocidolite, commonly known as blue asbestos, is a highly hazardous fibrous mineral characterized by its exceptional tensile strength and resistance to acids. Due to its severe health risks, particularly its strong link to mesothelioma and other cancers, its mining, processing, and use are banned or severely restricted in the vast majority of countries worldwide. International trade in crocidolite is virtually non-existent, with strict prohibitions enforced under international conventions like the Rotterdam Convention. Any remaining trade would be illicit or for highly controlled, specialized research purposes, making it a commodity primarily of historical significance rather than an active part of modern global commerce.
What products fall under HS code 252410?
Raw crocidolite fibers, crocidolite-containing insulation (historical), crocidolite-containing brake linings (historical), crocidolite-containing cement products (historical)
What are common misclassifications for HS code 252410?
Must be carefully distinguished from other asbestos types (252490) due to its unique chemical composition and particularly high toxicity, though all asbestos types are now heavily regulated.
Which countries are the top exporters of goods under HS code 252410?
In 2025, the top exporters of HS code 252410 in UN Comtrade data were the United Kingdom ($1K, 93% of world exports) and Russia (about $101). World exports came to about $1K, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Mexico reports $284M of its chapter 25 exports without product detail (confidential), so it may also belong among the top exporters.
Which countries are the top importers of goods under HS code 252410?
In 2025, the top importers of HS code 252410 in UN Comtrade data were Guatemala ($2K, 51% of world imports), Kazakhstan ($2K) and France ($282). World imports came to about $4K, 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 252410 structured?
HS code 252410 is a 6-digit subheading under the Harmonized System. The first 2 digits (25) identify the chapter, digits 3-4 (24) 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 252410?
In Brazil, HS code 252410 is NCM 2524.10.00. The last two digits are 00 because Brazil does not split this HS code further.