CORNING INC /NY

Our Board of Directors adopted (i) the Code of Conduct for Directors and Executive Officers, which supplement our Code of Conduct that governs all employees and directors and (ii) the Code of Ethics for the Chief Executive Officer and Financial

Executives (Code of Ethics). These Codes have existed for over ten years. The Code of Ethics applies to our Chief Executive Officer, Chief Financial Officer, Controller and other financial executives. During 2025, no amendments to or waivers of the Code of Ethics provisions were made for any of our directors or executive officers. A copy of the Code of Ethics is available at the Investor Relations – Governance Overview section of our website athttps://investor.corning.com/governance/Governance-Overview/default.aspx. We will disclose future amendments to, or waivers from, the Code of Ethics on our website within four business days following the date of such amendment or waiver.