Document J31qLxNbX0vmXoX9GbyJMLOBK

Message From: Bound, Nick [NBound@ameren.com] Sent: 3/31/2025 8:02:30 PM To: AirAction [AirAction@epa.gov] CC: Giesmann, Craig J [CGiesmann@ameren.com ] Subject: Ameren Missouri Request fora 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 OH-Fired Electric Utility Steam Generating Units Attachments: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 618.771.7042 NBoundeameren.com 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 Amercn 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_EVERSPLIT0020613