HS Code 70.19 – Glass fibres (including glass wool) and articles thereof (e.g. yarn, rovings, woven fabrics)

HS code 7019 is a 4-digit heading in the Harmonized System that covers: Glass fibres (including glass wool) and articles thereof (e.g. yarn, rovings, woven fabrics). Heading 7019 encompasses a crucial category of materials: glass fibres, including glass wool, and a wide array of articles made from them, such as yarns, rovings, and woven fabrics. This classification covers both continuous filament fibres and staple fibres, acknowledging their diverse applications. The scope extends from raw fibrous glass materials to semi-finished textile products derived from glass. It's distinct from general glass articles (7020) by focusing specifically on the fibrous form and its textile-like derivatives. Key sub-categories include glass wool for insulation, chopped strands and rovings used in composites, and various woven or non-woven fabrics and mats. This heading is vital for trade compliance as duties and regulations can differ significantly based on the form and degree of processing (e.g., raw fiber vs. finished fabric). Historically, glass fibres have evolved from basic insulation materials to advanced components in high-performance composites, playing a significant role in industries like construction, automotive, aerospace, marine, and electronics due to their strength, heat resistance, and electrical insulation properties. As part of Chapter 70 (Glass and Glassware), 7019 represents the specialized, high-tech end of glass manufacturing, moving beyond traditional glass forms into engineered materials.

Glass wool insulation rolls, fiberglass rovings, chopped strand mats, woven fiberglass fabrics, glass fiber yarns, glass fiber veils, fiberglass mesh for concrete reinforcement, glass fiber reinforced plastic (GFRP) prepregs, acoustic insulation panels (with glass fiber), thermal insulation blankets, fire-resistant glass fiber textiles, automotive headliners (glass fiber based), glass fiber filter media, electrical insulation tapes (glass fiber), glass fiber sleeves, continuous filament glass fibers, staple glass fibers, glass fiber felts, glass fiber braids, glass fiber cords, glass fiber wicks, glass fiber tubes (textile), glass fiber sheets (non-woven), glass fiber paper, glass fiber panels for cleanrooms.

A common mistake is confusing glass fiber articles with general glass articles under 7020, especially if the fibrous nature is not immediately obvious. For instance, a finished composite product *made with* glass fibers (e.g., a fiberglass boat hull) would likely be classified under its own functional heading (e.g., Chapter 89 for vessels) rather than 7019, which is for the glass fiber material itself. Traders also sometimes misclassify glass wool as mineral wool (6806), which is derived from rock or slag, not glass. The key distinction is the material's origin (glass) and its fibrous form. Another error is classifying finished articles of plastics reinforced with glass fibers (e.g., certain pipes or sheets) under 7019 when the primary classification should be in Chapter 39 (plastics) because the plastic component dictates the essential character of the finished article.

In 2025, the top exporters of HS code 7019 in UN Comtrade data were China ($3.1B, 21% of world exports), the United States ($1.4B) and Germany ($1.0B). World exports came to about $14.6B, 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.

In 2025, the top importers of HS code 7019 in UN Comtrade data were the United States ($1.5B, 10% of world imports), Germany ($1.2B) and China ($1.2B). World imports came to about $15.1B, 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.

HS code 7019 is a 4-digit heading under Chapter 70 of the Harmonized System. The first 2 digits (70) identify the chapter, and digits 3-4 (19) specify the heading. This code contains multiple 6-digit subheadings for precise product classification.