WESTLAKE CHEMICAL CORP Bonus & Incentive Agreements

Form of Performance Stock Unit Award Letter for 2024 Executive Officer Awards (Filed With SEC on February 22, 2024)

Westlake Corporation Amended and Restated Annual Incentive Plan (Filed With SEC on August 3, 2023)

Form of Performance Stock Unit Award Letter for 2021 Executive Officer Awards (Filed With SEC on February 24, 2021)

Form of Performance Stock Service Award Letter for 2019 Executive Officer Award (Filed With SEC on February 20, 2019)

Form of Special Incentive Award Letter for 2018 Executive Officer Awards (Filed With SEC on February 21, 2018)

Form of Long-Term Cash Performance Award Letter for 2018 Executive Officer Awards (Filed With SEC on February 21, 2018)

WESTLAKE CHEMICAL CORPORATION 2013 OMNIBUS INCENTIVE PLAN (As amended and Restated Effective May 19, 2017) (Filed With SEC on May 19, 2017)

WESTLAKE CHEMICAL CORPORATION 2013 OMNIBUS INCENTIVE PLAN (As amended and Restated Effective May 17, 2013) (Filed With SEC on May 22, 2013)

WESTLAKE CHEMICAL CORPORATION ANNUAL INCENTIVE PLAN As Amended and Restated as of March 31, 2011 (Filed With SEC on May 4, 2011)

EXHIBIT A Performance Conditions (Filed With SEC on February 24, 2011)

EXHIBIT A Performance Conditions (Filed With SEC on May 5, 2010)

2 EXHIBIT A Performance Conditions (Filed With SEC on March 4, 2010)

WESTLAKE CHEMICAL CORPORATION ANNUAL INCENTIVE PLAN (Filed With SEC on May 21, 2009)

2004 Omnibus Incentive Plan (Filed With SEC on July 2, 2004)