Product classification
HS code for Blown glass sheets: 7004.90
Glass, drawn and blown, in sheets, (other than glass coloured throughout the mass (body tinted), opacified, flashed or having an absorbent, reflecting or non-reflecting layer).
Classification of blown glass sheets under HS 7004.90
Blown glass sheets are classified under HS code 7004.90 according to the nomenclature of Chapter 70, which encompasses glass and glassware. Heading 7004 specifically addresses drawn glass and blown glass, in sheets, whether or not having an absorbent, reflecting, or non-reflecting layer, but not otherwise worked. The process of blowing glass into sheets—often involving the creation of a large cylinder that is subsequently split and flattened—is a traditional method that distinguishes these products from float glass or cast glass. Subheading 7004.90 is the residual category for glass that has not been colored throughout the mass (body tinted), opacified, flashed, or coated with specific functional layers. The classification depends on the manufacturing method (blowing) and the physical form (sheets) rather than the final application, provided the glass has not been further processed into safety glass or multiple-walled insulating units. This code is essential for identifying artisanal or specific architectural glass products.
- Covers
- Cylinder glass sheets
- Antique blown glass
- Crown glass in sheets
- Clear blown window glass
- Unworked blown glass for restoration
- Also under 7004.90
- Generic drawn window glass
- Basic picture frame glass
- Horticultural glazing sheets
Codes often confused with 7004.90
Common mistake. Blown glass sheets are often misclassified under 7005.29, which refers to float glass. Float glass is manufactured by floating molten glass on a bed of molten metal, a process entirely different from blowing. Another common error is 7003.19, which covers cast or rolled glass. If the glass has been further worked, such as being tempered or laminated, it must be moved to heading 7007. Furthermore, if the glass is body-tinted or flashed, it should be classified under 7004.20 rather than 7004.90. Importers must verify the manufacturing process to ensure the distinction between drawn/blown, cast, and float glass is maintained.
Top exporters and importers of HS 700490 (the code used for blown glass sheets), 2025
In 2025, the largest exporter of HS 700490 (the code used for blown glass sheets) in UN Comtrade data was Japan, with 25% of world exports; the largest importer in UN Comtrade data was China, with 62% 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 700490, not only blown glass sheets.
Top exporters 2025 · share of world exports
- 1 Japan $438M 25% of world exports
- 2 South Korea $352M 20% of world exports
- 3 Hong Kong $316M 18% of world exports
World total: $1.8B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 China $1.2B 62% of world imports
- 2 Hong Kong $254M 13% of world imports
- 3 Taiwan* ~$184M 9.3% of world imports · partner records ↗
World total: $2.0B 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. UN Comtrade records Taiwan as "Other Asia, not elsewhere specified". Saudi Arabia's exports under that code are left out: they are far too large to be trade with Taiwan, so mostly undisclosed partners. 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 blown glass sheets
Brazil classifies blown glass sheets under NCM 7004.90.00: HS 7004.90 with 00 added.
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about blown glass sheets
What is the HS code for Blown glass sheets?
The HS code for Blown glass sheets is 700490 (Glass; drawn and blown, in sheets, (other than glass coloured throughout the mass (body tinted), opacified, flashed or having an absorbent, reflecting or non-reflecting layer)). The HS code for unworked, non-tinted blown glass in sheets is 7004.90.
How do I classify Blown glass sheets for customs?
Blown glass sheets is classified under HS code 700490 — Glass; drawn and blown, in sheets, (other than glass coloured throughout the mass (body tinted), opacified, flashed or having an absorbent, reflecting or non-reflecting layer). This is a 6-digit subheading level code.
Is stained glass classified under this code?
No, stained glass or glass colored throughout the mass (body tinted) is typically classified under 7004.20 if it is blown or drawn.
Which countries are the top exporters of blown glass sheets (HS 700490)?
In 2025, the top exporters of HS 700490 (the code used for blown glass sheets) in UN Comtrade data were Japan ($438M, 25% of world exports), South Korea ($352M) and Hong Kong ($316M). World exports came to about $1.8B, 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 blown glass sheets (HS 700490)?
In 2025, the top importers of HS 700490 (the code used for blown glass sheets) in UN Comtrade data were China ($1.2B, 62% of world imports), Hong Kong ($254M) and Taiwan (about $184M). World imports came to about $2.0B, 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 Blown glass sheets the same in all countries?
The base HS code 700490 for Blown glass sheets 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 blown glass sheets in Brazil?
In Brazil, blown glass sheets (HS 700490) is classified under NCM 7004.90.00.