$0.500 per share dividend declared payable on December 6, 2023

The Board of Directors of Westlake Corporation (NYSE: WLK) today declared a regular dividend distribution of 50 cents per share for the third quarter of 2023. This dividend will be payable on December 6, 2023, to stockholders of record on November 21, 2023.

This is the 77th successive quarterly dividend that Westlake has declared since completing its initial public offering in August 2004.

The statements in this release that are not historical facts, including statements regarding future repurchases of common stock, are forward-looking statements. These forward-looking statements are subject to significant risks and uncertainties. Actual results could differ materially, based on factors including, but not limited to, the ultimate timing, outcome and results of integrating the operations of recent acquisitions; general economic and business conditions; the cyclical nature of the chemical and building products industries; availability, cost and volatility of raw materials and utilities; uncertainties associated with the United States, European and worldwide economies, including those due to political tensions and unrest; uncertainties associated with pandemic infectious diseases; and other risk factors. For more detailed information about the factors that could cause actual results to differ materially, please refer to Westlake’s Annual Report on Form 10-K for the year ended December 31, 2022, which was filed with the SEC in February 2023, and Westlake’s Quarterly Reports on Form 10-Q for the quarters ended March 31, 2023 and June 30, 2023, which were filed with the SEC in May and August 2023, respectively.

About Westlake

Westlake is a global manufacturer and supplier of materials and innovative products that enhance life every day. Headquartered in Houston, with operations in Asia, Europe and North America, we provide the building blocks for vital solutions — from housing and construction, to packaging and healthcare, to automotive and consumer. For more information, visit the Company's web site at www.westlake.com.

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