Tempered safety glass undergoes a controlled thermal or chemical hardening process that increases its mechanical strength several times over annealed glass and causes it to fracture into small, relatively blunt fragments rather than sharp shards — a property mandated by safety glazing standards in doors, sidelights, shower enclosures, automotive side and rear windows, and numerous other regulated applications. Because tempering is a terminal process, the glass cannot be cut or drilled after treatment, so importers must specify exact dimensions and any required holes or cutouts before the glass is processed. Demand is broad across construction, automotive, appliance, and solar panel sectors, and the product is subject to active trade-remedy scrutiny in several major supply markets.

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