Document B5xaqJ2ZpYkJqKvVzg9mkVNgE

From: Bound, Nick [N Bound@ameren.com] ent: 3/31/2025 8:02:30 PM o: AirAction [AirAction@epa.goy] CC: Giesmann, Craig J [CGiesmann@ameren.com] object: Ameren Missouri Request for a Presidential Exemption Pursuant to CAA Section 112(i)(4) for EPA's Final Rule Amending the National Emission Standards for Hazardous Air Pollutants For Coal- And Oil-Fired Electric Utility Steam Generating Units ttachments:Ameren Missouri MATS Presidential Exemption Request.pdf Caution: This email originated from outside EPA, please exercise additional caution when deciding whether to open attachments or click on provided links. Flag: Follow up Dear Administrator Zeldin, In accordance with the Mercury and Air Toxics Standards (MATS) fact sheet and EPA's March 12, 2025 request, Ameren Missouri submits our Presidential Exemption request for the Labadie and Sioux Energy Centers. Thanks, Nick Bound Environmental Scientist Environmental Services -- Air Quality C 618.771.7042 E NBoundfi?ameren.com : 1901 Chouteau wenue : St. Louis, MO 63166 This communication and any attachments may be privileged and/or confidential and protected from disclosure, and are otherwise the exclusive property of Ameren Corporation and its affiliates (Ameren) or the intended recipient. If you are not the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. Note that any views or opinions presented in this message do not necessarily represent those of Ameren. All e-mails are subject to Ameren policies. If you have received this in error, please notify the sender immediately by replying to the message and deleting the material from any computer. Sierra Club FOIA 2025-EPA-04883 ED_018388_00000110-00001 SC_EVERSPLIT0005280