X0206 3 2023-05-11 0 0001262823 WESTLAKE CORP WLK 0001974878 Sabat Carolyn Chao 2801 POST OAK BLVD., STE. 600 HOUSTON TX 77056 1 0 1 0 Common Stock 93405554 I TTWF LP & TTWFGP LLC 92,010,554 shares of Issuer are held through TTWF LP, a Delaware limited partnership. 1,395,000 shares of the Issuer are held through TTWFGP LLC, a Delaware limited liability company that is the general partner of TTWF LP. Two trusts for the benefit of members of the Chao family, including the reporting person, are the managers of TTWFGP LLC. The limited partners of TTWF LP are five trusts, principally for the benefit of members of the Chao family, including the reporting person, and two corporations owned, indirectly or directly, by certain of these trusts and by other entities owned by members of the Chao family, including the reporting person. The reporting person disclaims beneficial ownership of the shares except to the extent of her pecuniary interest therein. Carolyn Chao Sabat by J Feng POA 2023-05-11