NOTICE TO BIDDERS You are invited to submit a Proposal for Safety Related Pipe, Fittings and Structural Steel 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) Proposals Due Date August 21, 2025, At 1700 CDT For a copy of these documents please reach out to Jim Kitchens at jkitchens@usainc.org. IPL0253483 Jul 11 2025