ONCOR TO RELEASE 2025 RESULTS FEBRUARY 26

Core Viewpoint - Oncor Electric Delivery Company LLC is set to release its fourth quarter and year-end 2025 results on February 26, 2026, prior to Sempra's own results conference call [1] Group 1: Financial Results Announcement - Oncor's earnings release will be available on its website [1] - Sempra executives will host a conference call at 12 p.m. ET on February 26 to discuss Oncor's operational and financial results [1] - An accompanying slide presentation will be posted on Sempra's investor section prior to the conference call [1] Group 2: Accessibility of Information - The live webcast of the conference call can be accessed by registering on Sempra's website [1] - A replay of the webcast will be available a few hours after its conclusion [1] - Oncor's Annual Report on Form 10-K for the year ended December 31, 2025, will be filed with the U.S. Securities and Exchange Commission after Sempra's conference call [1] Group 3: Company Overview - Oncor is headquartered in Dallas and operates the largest transmission and distribution system in Texas [1] - The company delivers electricity to over 4.1 million homes and businesses and manages more than 145,000 circuit miles of transmission and distribution lines in Texas [1] - Oncor is owned by Sempra (indirect majority owner) and Texas Transmission Investment LLC (minority owner), with management by a Board of Directors comprising a majority of disinterested directors [1]