Product classification
HS code for Unworked glass tubing: 7002.39
Glass, unworked, in tubes, other than of glass having a linear coefficient of expansion not exceeding 5 x 10 (to the minus 6, (or 0.000005) ) per Kelvin within a temperature range of 0-300 degrees C, not fused quartz or other fused silica.
Classification of unworked glass tubing under HS 7002.39
Unworked glass tubing is classified under HS code 7002.39, which serves as a residual category for glass in tubes that do not meet the specific criteria of other subheadings. To be classified here, the glass must be 'unworked,' meaning it has not been bent, sealed, ground, or otherwise processed after the initial drawing process. Furthermore, this code specifically excludes glass with a low linear coefficient of expansion (not exceeding 5 x 10^-6 per Kelvin) and fused quartz or other fused silica. Therefore, 7002.39 typically covers soda-lime glass, lead glass, or certain borosilicate glasses that have a higher expansion coefficient. The classification is based on the physical form (tubular) and the chemical/thermal properties of the glass. This code is essential for the laboratory supply and lighting industries, where glass tubes are imported as raw materials to be later transformed into test tubes, neon lights, or pharmaceutical ampoules.
- Covers
- Soda-lime glass tubes
- Lead glass tubing for electronics
- Borosilicate glass tubes with expansion > 5x10^-6
- Unworked glass pipes for industrial use
- Standard clear glass tubing
- Also under 7002.39
- General lighting manufacturers (for raw tubes)
- specific art glass suppliers
- basic laboratory glassware producers
- packaging glass manufacturers
Codes often confused with 7002.39
Common mistake. The most common misclassification is with HS code 7002.31 (fused quartz) or 7002.32 (low expansion glass). Importers must verify the linear coefficient of expansion; if it is 5 x 10^-6 or less, it must be classified under 7002.32. Another frequent error is classifying these tubes under HS code 7017, which covers laboratory, hygienic, or pharmaceutical glassware. However, 7017 is only for finished or 'worked' glassware. If the tube is merely a raw, unworked length of glass, it must remain in 7002.39.
Top exporters and importers of HS 700239 (the code used for unworked glass tubing), 2025
In 2025, the largest exporter of HS 700239 (the code used for unworked glass tubing) in UN Comtrade data was the Philippines, with 22% of world exports; the largest importer in UN Comtrade data was France, with 13% 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 700239, not only unworked glass tubing.
Top exporters 2025 · share of world exports
- 1 Philippines $53M 22% of world exports
- 2 Malaysia $41M 17% of world exports
- 3 Italy $37M 15% of world exports
World total: $247M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 France $31M 13% of world imports
- 2 India $23M 9.3% of world imports
- 3 Italy $22M 9.0% of world imports
World total: $245M 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 unworked glass tubing
Brazil classifies unworked glass tubing under NCM 7002.39.00: HS 7002.39 with 00 added.
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about unworked glass tubing
What is the HS code for Unworked glass tubing?
The HS code for Unworked glass tubing is 700239 (Glass; unworked, in tubes, other than of glass having a linear coefficient of expansion not exceeding 5 x 10 (to the minus 6, (or 0.000005) ) per Kelvin within a temperature range of 0-300 degrees C, not fused quartz or other fused silica). The HS code for unworked glass tubing (other than fused silica or low-expansion glass) is 7002.39.
How do I classify Unworked glass tubing for customs?
Unworked glass tubing is classified under HS code 700239 — Glass; unworked, in tubes, other than of glass having a linear coefficient of expansion not exceeding 5 x 10 (to the minus 6, (or 0.000005) ) per Kelvin within a temperature range of 0-300 degrees C, not fused quartz or other fused silica. This is a 6-digit subheading level code.
Does 7002.39 include tubes cut to specific lengths?
Yes, as long as the ends are not further worked (like being rounded or sealed), simple cutting to length generally does not remove the product from the 'unworked' category of 7002.
Which countries are the top exporters of unworked glass tubing (HS 700239)?
In 2025, the top exporters of HS 700239 (the code used for unworked glass tubing) in UN Comtrade data were the Philippines ($53M, 22% of world exports), Malaysia ($41M) and Italy ($37M). World exports came to about $247M, 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 unworked glass tubing (HS 700239)?
In 2025, the top importers of HS 700239 (the code used for unworked glass tubing) in UN Comtrade data were France ($31M, 13% of world imports), India ($23M) and Italy ($22M). World imports came to about $245M, 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 Unworked glass tubing the same in all countries?
The base HS code 700239 for Unworked glass tubing 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 unworked glass tubing in Brazil?
In Brazil, unworked glass tubing (HS 700239) is classified under NCM 7002.39.00.