Product classification
HS code for Quartzite blocks: 2506.20
Quartzite, whether or not roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape.
Classification of quartzite blocks under HS 2506.20
Quartzite blocks are classified under HS code 2506.20 within the Harmonized System's nomenclature for mineral products. Chapter 25 encompasses salt, sulfur, earths, and stone, specifically focusing on materials that have not been extensively worked. Heading 2506 covers quartz and quartzite. The subheading 2506.20 is designated for quartzite, a metamorphic rock consisting essentially of quartz. For a product to remain within this classification, it must be in its crude state, roughly trimmed, or merely cut by sawing or other means into blocks or slabs of a rectangular or square shape. This classification is critical because it distinguishes raw or minimally processed industrial stone from finished architectural products. If the quartzite undergoes further processing such as polishing, edge-carving, or honing, it typically migrates to Chapter 68. The determination depends on the degree of "working" the stone has undergone since extraction from the quarry. The HS code 2506.20 is intended for the raw material stage of the supply chain, serving industries ranging from construction to glass manufacturing where the chemical and physical properties of the raw stone are required.
- Covers
- Raw quartzite blocks extracted from quarries
- Roughly trimmed quartzite slabs
- Quartzite cut into rectangular shapes by sawing
- Unpolished quartzite blocks for industrial use
- Also under 2506.20
- Taj Mahal Quartzite
- White Macaubas Quartzite
- Super White Quartzite
- Azul Macaubas Quartzite
- Patagonia Quartzite.
Codes often confused with 2506.20
Common mistake. Quartzite blocks are often misclassified under HS code 6802, which covers worked monumental or building stone. The distinction lies in the level of processing; if the stone is polished, molded, or otherwise decorated, it belongs in 6802. Another confusion occurs with 2506.10, which is reserved for quartz other than quartzite.
Top exporters and importers of HS 250620 (the code used for quartzite blocks), 2025
In 2025, the largest exporter of HS 250620 (the code used for quartzite blocks) in UN Comtrade data was Brazil, with 52% of world exports; the largest importer in UN Comtrade data was China, with 33% 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 250620, not only quartzite blocks.
Top exporters 2025 · share of world exports
- 1 Brazil $144M 52% of world exports
- 2 Italy $47M 17% of world exports
- 3 China $26M 9.5% of world exports
World total: $276M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 China $109M 33% of world imports
- 2 Italy $88M 27% of world imports
- 3 Iceland $17M 5.4% of world imports
World total: $324M 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 quartzite blocks
Brazil classifies quartzite blocks under NCM 2506.20.00: HS 2506.20 with 00 added.
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about quartzite blocks
What is the HS code for Quartzite blocks?
The HS code for Quartzite blocks is 250620 (Quartzite; whether or not roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape). The HS code for quartzite blocks that are roughly trimmed or merely cut into rectangular shapes is 2506.20.
How do I classify Quartzite blocks for customs?
Quartzite blocks is classified under HS code 250620 — Quartzite; whether or not roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape. This is a 6-digit subheading level code.
When does quartzite move from Chapter 25 to Chapter 68?
Quartzite moves to Chapter 68 (specifically 6802) once it has been further worked beyond simple sawing or rough trimming, such as being polished, honed, or edge-finished.
Which countries are the top exporters of quartzite blocks (HS 250620)?
In 2025, the top exporters of HS 250620 (the code used for quartzite blocks) in UN Comtrade data were Brazil ($144M, 52% of world exports), Italy ($47M) and China ($26M). World exports came to about $276M, 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 quartzite blocks (HS 250620)?
In 2025, the top importers of HS 250620 (the code used for quartzite blocks) in UN Comtrade data were China ($109M, 33% of world imports), Italy ($88M) and Iceland ($17M). World imports came to about $324M, 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 Quartzite blocks the same in all countries?
The base HS code 250620 for Quartzite blocks 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 quartzite blocks in Brazil?
In Brazil, quartzite blocks (HS 250620) is classified under NCM 2506.20.00.