Product classification
HS code for Calcareous stone products: 6802.92
Stone, calcareous (excluding marble, travertine, alabaster) articles thereof, (other than simply cut or sawn, with a flat or even surface).
Classification of calcareous stone products under HS 6802.92
Calcareous stone products that have been worked beyond simple cutting or sawing are classified under HS code 6802.92. Chapter 68 covers articles of stone, and heading 6802 specifically addresses worked monumental or building stone. The classification under 6802.92 is reserved for calcareous stones—such as limestone—that are not marble, travertine, or alabaster. The "worked" aspect is crucial; if the stone is merely squared or sawn into blocks or slabs with a flat surface, it might fall under 6802.2x. However, once the stone is carved, polished, edge-worked, or otherwise further manufactured into a finished or semi-finished product, it moves to the 6802.9x series. Subheading 6802.92 provides a specific destination for these non-marble calcareous materials, ensuring precise tracking of trade in building materials. This includes items used in architecture, landscaping, and interior design that have undergone significant mechanical processing.
- Covers
- Polished limestone floor tiles
- Carved limestone window sills
- Molded calcareous stone cornices
- Limestone pavers with beveled edges
- Sculpted calcareous stone ornaments
- Also under 6802.92
- Portland Stone (carved architectural elements)
- French Limestone (polished tiles)
- various custom limestone fabricators
- Haddonstone (cast limestone products)
- Chilstone (limestone garden ornaments)
Codes often confused with 6802.92
Common mistake. The most common misclassification is using 6802.21 or 6802.29, which are for stones that are "simply cut or sawn, with a flat or even surface." If the stone has any additional working, like a rounded edge or a polished finish, it must move to the 6802.9x category. Another error is confusing calcareous stone with marble (6802.91). While both are calcium-based, marble is geologically distinct (metamorphic) and has its own specific subheading. Finally, raw limestone blocks are classified in Chapter 25 (2521.00) rather than Chapter 68.
Top exporters and importers of HS 680292 (the code used for calcareous stone products), 2025
In 2025, the largest exporter of HS 680292 (the code used for calcareous stone products) in UN Comtrade data was Portugal, with 32% of world exports; the largest importer in UN Comtrade data was the United States, with 43% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.
Figures cover everything classified under HS 680292, not only calcareous stone products.
Top exporters 2025 · share of world exports
- 1 Portugal $100M 32% of world exports
- 2 Italy $31M 10% of world exports
- 3 Morocco $23M 7.4% of world exports
World total: $309M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 United States $147M 43% of world imports
- 2 Australia $25M 7.3% of world imports
- 3 Switzerland $17M 4.8% of world imports
World total: $343M 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 calcareous stone products
Brazil classifies calcareous stone products under NCM 6802.92.00: HS 6802.92 with 00 added.
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about calcareous stone products
What is the HS code for Calcareous stone products?
The HS code for Calcareous stone products is 680292 (Stone; calcareous (excluding marble, travertine, alabaster) articles thereof, (other than simply cut or sawn, with a flat or even surface)). The HS code for worked calcareous stone products (other than marble/travertine) is 6802.92.
How do I classify Calcareous stone products for customs?
Calcareous stone products is classified under HS code 680292 — Stone; calcareous (excluding marble, travertine, alabaster) articles thereof, (other than simply cut or sawn, with a flat or even surface). This is a 6-digit subheading level code.
Does this include marble tiles?
No, worked marble tiles are classified under HS code 6802.91, as marble is specifically separated from other calcareous stones in the HS nomenclature.
Which countries are the top exporters of calcareous stone products (HS 680292)?
In 2025, the top exporters of HS 680292 (the code used for calcareous stone products) in UN Comtrade data were Portugal ($100M, 32% of world exports), Italy ($31M) and Morocco ($23M). World exports came to about $309M, 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 calcareous stone products (HS 680292)?
In 2025, the top importers of HS 680292 (the code used for calcareous stone products) in UN Comtrade data were the United States ($147M, 43% of world imports), Australia ($25M) and Switzerland ($17M). World imports came to about $343M, 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 Calcareous stone products the same in all countries?
The base HS code 680292 for Calcareous stone products 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 calcareous stone products in Brazil?
In Brazil, calcareous stone products (HS 680292) is classified under NCM 6802.92.00.