Document vVv8gEQEeeyQV0GL8r0jaxVkm

This message and any attachments are for the sole use of the intended recipient(s) and may contain confidential and/or privileged information. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply email and destroy all copies of the original message and any attachments. Sierra Club FOIA 2025-EPA-04883 ED_018388_00000132-00002 SC_EVERSPLIT0005288 Message From: Hughes, Jennifer L. [JLHughes@mcguirewoods.com] Sent: 3/31/2025 9:01:44 PM To: AirAction [AirAction@epa.gov] CC: Szabo, Aaron [Szabo.Aaron@epa.gov]; Tardif, Abigale (Abbie) [Tardif.Abigale@epa.gov]; Donahue, Sean [donahue.sean@epa.gov]; Dominguez, Alexander [dominguez.alexander@epa.gov]; Tsirigotis, Peter [Tsirigotis.Peter@epa.gov]; Lassiter, Penny [Lassiter. Penny@epa.gov]; Lessard, Patrick [Lessard. Patrick@epa.gov]; Bouchard, Andrew [Bouchard.Andrew@epa.gov]; Sowatzka, Adam G. [asowatzka@mcguirewoods.com] Subject: Ascend's Request for Presidential Exemption from HON Rule Attachments:Ascend Request for Presidential Exemption of HON FINAL 3-31- 2025.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 To Whom It May Concern: On behalf of Ascend Performance Materials Operations LLC, attached is a request for a Presidential exemption from the HON Rule pursuant to Clean Air Act 112(i)(4). Specifically, Ascend requests a two-year extension for three of its facilities, as detailed in the attached letter. Should you have any questions, please do not hesitate to contact me. Sincerely, Jennifer Hughes Jennifer L. Hughes Counsel Not admitted in Georgia; admitted in West Virginia McGuireWoods LLP T: +1 404 443 5545 M: +1 304 543 9009 F: +1 404 443 5755 ilbughesAmcguirewoods.corn VCard www.mcguirewoods.com Sierra Club FOIA 2025-EPA-04883 ED_018388_00000134-00001 SC_EVERSPLIT0005289