Union Electric Company, doing business as Ameren Missouri, a subsidiary of Ameren Corporation, sold $450 million of 4.80% First Mortgage Bonds due 2036 and $450 million of 5.55% First Mortgage Bonds due 2056. Ameren Missouri received about $891.1 million in net proceeds before expenses at closing.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Ameren Corporation published the original content used to generate this news brief via EDGAR, the Electronic Data Gathering, Analysis, and Retrieval system operated by the U.S. Securities and Exchange Commission (Ref. ID: 0001104659-26-021486), on February 27, 2026, and is solely responsible for the information contained therein.