NOTICE TO BIDDERS You are invited to submit a Proposal for Heat Exchanger Tube Cleaning and Eddy Current Testing in accordance with the requirements specified herein for the following Utilities Service Alliance (USA) participants: • American Electric Power (DC Cook) • DTE Electric Company (Fermi 2) • Energy Northwest (Columbia Station) • Korea Hydro and Nuclear Power (KHNP) • Nebraska Public Power District (Cooper Nuclear Station) • Palisades Nuclear Power Plant • STPNOC (South Texas Project) • Talen Energy (Susquehanna) • Urenco USA (UUSA) • Vistra Corp. (Beaver Valley, Comanche Peak, Davis-Besse and Perry) • Xcel Energy (Monticello & Prairie Island) REQUEST FOR PROPOSAL (RFP) NO: 250901 RFP ISSUE DATE: October 9, 2025 PROPOSAL DUE DATE: Thursday, November 20, 2025, at 1700 CST Proposals received after the published due date may be considered nonresponsive and disqualified. Proposals for this project shall be submitted electronically. Indicate your company's intent to provide a proposal for this project via e-mail within three (3) business days from the date of this letter. SUBMIT TO: Tami D. Weber Utilities Service Alliance (USA) Executive Director Contracts and Supplier Relations tweber@usainc.org Phone: 402.276.5562 IPL0280914 Oct 15 2025