Document EgxQ5xgZaO8gejvYXVrO6RVg

As Westlake's evaluation of the requirements under the l ON rule progresses and we continue to develop our compliance plans, Westlake may have additional detail or more concrete information related to the technical challenges, time required, and costs for coming into compliance with the HON rule. Some of that more detailed information may include confidential business information which Westlake would be willing to provide under the appropriate protections for such competitive and trade secret information. Please contact Susan Newman at c,-, )1 should EPA or the President require more detailed information about specific impacts to Westlake's Deer Park Plant. Thank you for the timely consideration of this request. Vestlake Epoxy Prashanth Hejmadi I Plant Manager, Deer Park phejinadiewe,Aake.con+ Office: 281-727-3151I Cell: 832-284-5015 Westlake Epoxy, a Westlake company Hwy 225, Gate 7B, Deer Park, TX, 77536 www westlake corn Sierra Club FOIA 2025-EPA-04883 ED_018388_00005709-00002 SC_EVERSPLIT0005582