Exhibit 99 News Release FOR RELEASE – Oct. 28, 2025 Corning Announces Third-Quarter 2025 Financial Results with Record Core Sales and Core EPS (1) In Q3, core sales grew 14% year over year, while core EPS grew 24%, and core operating margin expanded 130 basis points Optical Communications' Enterprise sales grew 58% year over year in the third quarter, driven by the continued strong adoption of Corning's new Gen AI products Company expects continued strong performance on its Springboard plan and now expects ...