Product classification
HS code for Glass fiber yarn: 7019.13
Glass fibres, (including glass wool), yarns and slivers.
Classification of glass fiber yarn under HS 7019.13
Glass fiber yarn is classified under HS code 7019.13. This classification is specific to glass fibers that have been processed into yarns or slivers. According to the Explanatory Notes to the Harmonized System, yarn consists of one or more filaments of glass fiber that have been twisted together to form a continuous strand suitable for weaving, knitting, or sewing. The classification under 7019.13 is distinguished from other glass fiber products by this mechanical twisting process. Slivers, which are also included in this code, are continuous strands of loose, untwisted glass fibers that are typically a precursor to the spinning process. The technical requirement for 7019.13 is that the material must exhibit the characteristics of a textile yarn, which is essential for its subsequent use in the manufacture of glass fiber fabrics. This code is vital for identifying materials intended for high-strength textile applications, such as fire-resistant clothing or industrial filtration systems.
- Covers
- Single glass fiber yarns
- Multiple or folded glass fiber yarns
- Cabled glass fiber yarns
- Glass fiber slivers
- Texturized glass yarns
- Also under 7019.13
- Vitrulan glass yarns
- Ahlstrom-Munksjö glass fiber textiles
- Porcher Industries glass yarns
- SGL Carbon glass fiber fabrics
Codes often confused with 7019.13
Common mistake. Glass fiber yarn is often misclassified under 7019.19, which covers other glass fiber threads and rovings. The distinction is the presence of a twist; if the fiber bundle is not twisted, it generally falls under 7019.19. Another common confusion is with 7019.61 or 7019.62, which are codes for woven fabrics made from glass yarn. Importers must ensure that the product is still in its yarn form and has not yet been woven into a textile structure. Furthermore, 7019.11 for chopped strands is sometimes used incorrectly for short lengths of yarn.
Top exporters and importers of HS 701913 (the code used for glass fiber yarn), 2025
In 2025, the largest exporter of HS 701913 (the code used for glass fiber yarn) in UN Comtrade data was Taiwan, with about 24% of world exports; the largest importer in UN Comtrade data was the United States, with 21% 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 701913, not only glass fiber yarn.
Top exporters 2025 · share of world exports
- 1 Taiwan* ~$127M 24% of world exports · partner records ↗
- 2 China $71M 13% of world exports
- 3 United States $70M 13% of world exports
World total: $536M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 United States $121M 21% of world imports
- 2 Japan $74M 13% of world imports
- 3 Germany $55M 9.7% of world imports
World total: $565M 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 glass fiber yarn
Brazil classifies glass fiber yarn under NCM 7019.13.00: HS 7019.13 with 00 added.
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about glass fiber yarn
What is the HS code for Glass fiber yarn?
The HS code for Glass fiber yarn is 701913 (Glass fibres; (including glass wool), yarns and slivers). The HS code for glass fiber yarn and slivers is 7019.13.
How do I classify Glass fiber yarn for customs?
Glass fiber yarn is classified under HS code 701913 — Glass fibres; (including glass wool), yarns and slivers. This is a 6-digit subheading level code.
How is glass yarn distinguished from glass roving?
Glass yarn (7019.13) is characterized by a twist applied to the filaments, whereas glass roving (7019.19) consists of parallel filaments gathered into a bundle without a significant twist.
Which countries are the top exporters of glass fiber yarn (HS 701913)?
In 2025, the top exporters of HS 701913 (the code used for glass fiber yarn) in UN Comtrade data were Taiwan (about $127M, 24% of world exports), China ($71M) and the United States ($70M). World exports came to about $536M, 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 glass fiber yarn (HS 701913)?
In 2025, the top importers of HS 701913 (the code used for glass fiber yarn) in UN Comtrade data were the United States ($121M, 21% of world imports), Japan ($74M) and Germany ($55M). World imports came to about $565M, 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 Glass fiber yarn the same in all countries?
The base HS code 701913 for Glass fiber yarn 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 glass fiber yarn in Brazil?
In Brazil, glass fiber yarn (HS 701913) is classified under NCM 7019.13.00.