Product classification
HS code for Crocidolite asbestos: 2524.10
Asbestos, crocidolite (blue asbestos).
Classification of crocidolite asbestos under HS 2524.10
Crocidolite asbestos, also known as blue asbestos, is classified under HS code 2524.10. This classification is found within Chapter 25, which covers salt, sulfur, earths and stone, and other mineral substances. Heading 2524 is specifically dedicated to asbestos in its mineral form. The subheading 2524.10 was created to specifically identify and monitor the trade of crocidolite, which is considered the most hazardous form of asbestos and is subject to strict international regulations, including the Rotterdam Convention. This code applies to the raw mineral as it is extracted from the earth, as well as crocidolite that has been crushed, washed, or graded. It also includes crocidolite in the form of raw fibers that have not yet been fabricated into finished articles. The classification is strictly based on the mineralogical identity of the substance as an amphibole asbestos of the crocidolite variety. If the asbestos is of a different variety, such as chrysotile, it would fall under a different subheading within the same heading.
- Covers
- Raw crocidolite mineral ore
- Crushed crocidolite rock
- Washed crocidolite fibers (unworked)
- Crocidolite concentrates
- Blue asbestos in bulk mineral form
- Also under 2524.10
- (No current legitimate examples due to bans)
Codes often confused with 2524.10
Common mistake. Crocidolite is often misclassified under HS code 2524.90, which is the category for "other" types of asbestos, such as chrysotile (white asbestos). It is also frequently confused with HS code 6812.80. The distinction is that 2524.10 is for the raw mineral, while 6812.80 is for fabricated fibers or articles made from crocidolite.
Top exporters and importers of HS 252410 (the code used for crocidolite asbestos), 2025
In 2025, the largest exporter of HS 252410 (the code used for crocidolite asbestos) 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.
Figures cover everything classified under HS 252410, not only crocidolite asbestos.
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 crocidolite asbestos
Brazil classifies crocidolite asbestos under NCM 2524.10.00: HS 2524.10 with 00 added.
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about crocidolite asbestos
What is the HS code for Crocidolite asbestos?
The HS code for Crocidolite asbestos is 252410 (Asbestos; crocidolite (blue asbestos)). The HS code for raw or unworked crocidolite asbestos is 2524.10.
How do I classify Crocidolite asbestos for customs?
Crocidolite asbestos is classified under HS code 252410 — Asbestos; crocidolite (blue asbestos). This is a 6-digit subheading level code.
Is blue asbestos different from white asbestos in the HS system?
Yes, blue asbestos (crocidolite) is 2524.10, while white asbestos (chrysotile) is classified under 2524.90.
Which countries are the top exporters of crocidolite asbestos (HS 252410)?
In 2025, the top exporters of HS 252410 (the code used for crocidolite asbestos) 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 crocidolite asbestos (HS 252410)?
In 2025, the top importers of HS 252410 (the code used for crocidolite asbestos) 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.
Is the HS code for Crocidolite asbestos the same in all countries?
The base HS code 252410 for Crocidolite asbestos is internationally standardized for the first 6 digits across 200+ countries. Individual countries may add additional digits for national tariff lines and specific classifications.
What is the NCM code for crocidolite asbestos in Brazil?
In Brazil, crocidolite asbestos (HS 252410) is classified under NCM 2524.10.00.