Document 0gj0Mk3w41XknBGw8Mzk8O1jR

Please let us know if you have questions or would like additional information related to this request. Thank you, Sarah Douglas LULL Baker Botts L.L.P. sarah.douglasgbakerbotts.com T +1.202.639.7733 M +1.858.395.3488 700 K St NW Washington, D.C. 20001 United States Confidentiality Notice: The information contained in this email and any attachments is intended only for the recipient[s] listed above and may be privileged and confidential. Any dissemination, copying, or use of or reliance upon such information by or to anyone other than the recipient[s] listed above is prohibited. If you have received this message in error, please notify the sender immediately at the email address above and destroy any and all copies of this message. Sierra Club FOIA 2025-EPA-04883 ED_018388_00005656-00002 SC_EVERSPLIT0005451 Message From: Sent: To: Subject: AirAction [/O=EXCHANGELABS/OU=EXCHANGE ADMINISTRATIVE GROUP (FYDIBOHF23SPDLT)/CN=RECIPIENTS/CN=FA78B98923384078995E04A73D258D83-AIRACTION] 4/2/2025 12:18:13 PM Estevens, Ryan [restevens@westlake.com] CORRECTION: Updated email address for CBI related to the Presidential Exemption In the previous email, an incorrect email address was provided for the submission of electronic Confidential Business Information (CBI). The email address should be: OAQPS_CBI@epa.gov Thank you. From: AirAction Sent: Monday, March 31, 2025 2:50 PM To: Estevens, Ryan <restevens@westlake.com> Subject: RE: Request a Presidential Exemption under section 112(i)(4) of the Clean Air Act for Westlake Vinyls Company, LP Thank you for emailing the AirAction mailbox to request a Presidential Exemption under section 112(i)(4) of the Clean Air Act and for engaging with EPA in advancing President Trump's Executive Orders and Powering the Great American Comeback. We have received your email and will be in contact soon. If you have Confidential Business Information (CBI) that you'd like to submit, please submit it in electronic version to the CBI@epa.gov inbox or in hardcopy to: USEPA, OAQPS CORE CBI Office 4930 Old Page Road Durham, NC 27703 From: Estevens, Ryan <restevens@westlake_cd_n> Sent: Monday, March 31, 2025 2:43 PM To: AirAction <AirAction@epa.gov> Cc: Bouchard, Andrew <Bouchard.Andrew@epa.gov>; Lessard, Patrick <Lessard.Patrick@epa.gov>; Lassiter, Penny <Lassiter.Penny@epa.gov>; Tsirigotis, Peter <Tsirigotis.Peter@epa.gov>; Dominguez, Alexander <dorninguez.alexander@epa.gov>; Donahue, Sean <donahue.sean@epa.gov>; Tardif, Abigale (Abbie) <Tardif.Abigale@epa.gov> Subject: Request a Presidential Exemption under section 112(i)(4) of the Clean Air Act for Westlake Vinyls Company, LP I Caution: This email originated from outside EPA, please exercise additional caution when deciding whether to open attachments or click on provided links. To whom it may concern: Please see attached, a request for Presidential Exemption for Westlake Vinyl Company, LP's HON-covered facility at 36045 Hwy 30, PO Box 228, Geismar, LA 70734, as requested by U.S. EPA of the regulated community. As explained in greater detail in the attached letter, Westlake is seeking a Presidential Exemption under the New Source Performance Standards for the Synthetic Organic Chemical Manufacturing Industry and National Emission Standards for Hazardous Air Pollutants for the Synthetic Organic Chemical Manufacturing Industry and Group I & II Polymers and Resins. See 89 FR 42932; May 16, 2024 (HON rule). Sierra Club FOIA 2025-EPA-04883 ED_018388_00005657-00001 SC_EVERSPLIT0005452