Glass; float glass and surface ground or polished glass, in sheets, non-wired, coloured throughout the mass (body tinted), opacified, flashed or merely surface ground

HS code 700521 covers: Glass; float glass and surface ground or polished glass, in sheets, non-wired, coloured throughout the mass (body tinted), opacified, flashed or merely surface ground. This HS code encompasses a specialized segment of flat glass, specifically float glass and surface-treated glass that is non-wired and has inherent color or specific surface treatments. In international trade, these products are crucial for architectural applications, automotive glass, and interior design where aesthetic and functional properties like light transmission, privacy, or solar control are paramount. Major importers include construction companies, automotive manufacturers, and specialized glass fabricators in developed and rapidly urbanizing economies. Exporters are typically large-scale glass manufacturers with advanced production capabilities. Key things to know involve understanding the specific tinting processes (body-tinted vs. flashed), the degree of opacity, and the surface grinding techniques, as these directly impact the glass's end-use and value. The market is driven by construction booms, energy efficiency regulations, and design trends favoring colored or treated glass.

Body-tinted float glass, Opacified architectural glass, Flashed glass panels, Surface-ground decorative glass, Tinted automotive glass sheets, Solar control tinted glass, Privacy glass panels

This code can be confused with 700529 (other non-wired float glass) if the specific coloring or surface treatment is overlooked, or with 7003 (cast/rolled glass) if the manufacturing process isn't clearly identified.

HS code 700521 is a 6-digit subheading under the Harmonized System. The first 2 digits (70) identify the chapter, digits 3-4 (05) identify the heading, and digits 5-6 (21) specify the subheading. This code is standardized globally by the World Customs Organization.