Manufacturers Demand Documented Glass Hardness Certification
Smartphone and wearable manufacturers racing to differentiate on device durability are increasingly specifying cover glass with documented Vickers hardness testing over standard undifferentiated equivalents in design procurement decisions. Corning Incorporated and AGC Inc have both expanded certified chemically strengthened glass production capacity over the past two years to serve this growing manufacturer demand. At least a dozen major device manufacturers have qualified new certified suppliers since 2023, and suppliers report this shift is meaningfully expanding addressable premium demand, with several additional manufacturers reportedly evaluating similar qualification programs soon across their upcoming flagship device lineups.
Market Impact: Sustains 5%+ smartphone-linked growth yearly








