Jushi manufactures glass fiber and related products, rather than the complete range of finished goods that use them. The annual report explains the production route: mineral ingredients, including pyrophyllite, kaolin, limestone and quartz sand, are proportioned, melted at high temperature, drawn into fine filaments, dried and wound. Each strand contains hundreds or even thousands of filaments; the source describes individual diameters from a few to more than twenty micrometres. This is industry process background, not a specification for every Jushi grade. It describes glass fiber as an inorganic, non-metallic material used for reinforcement in composites, electrical insulation, thermal insulation and circuit-board substrates. Stated advantages include electrical insulation, heat resistance, corrosion resistance and mechanical strength; their suitability for a particular finished component is not independently demonstrated by this description. The report distinguishes alkali-free, medium-alkali and high-alkali glass by composition, and says alkali-free glass represents more than 95% of industry output. That industry percentage is not Jushi’s own sales mix. Its commercial disclosures distinguish roving and related products measured in tonnes from electronic fabric measured in metres. Those forms serve different applications and cannot be combined into one physical output or sales total.