Record sales volumes in 2019 Feb. 18, 2020- Westlake Chemical Corporation (NYSE: WLK) (the "Company" or "Westlake") today reported net income attributable to Westlake for the three months ended December 31, 2019 of $72 million, or $0.56 per diluted share, on net sales of $1,883 million. Net income in the fourth quarter of 2019 decreased by $51 million compared to fourth quarter 2018 net income of $123 million, or $0.95 per share, on net sales of $1,995 million. Income from operations of $102 million for the fourth quarter of 2019 decreased by $105 million from income from operations of $207 million for the fourth quarter of 2018. The decreases in net income and income from operations versus the prior-year period were primarily due to lower global sales prices for our major products resulting from ongoing international trade uncertainties and slower global economic growth, partially offset by lower purchased ethylene, ethane feedstock and fuel costs. Net income for the fourth quarter

Westlake Chemical Partners LP (NYSE: WLKP) (the "Partnership") announced that it filed its Annual Report on Form 10-K for the fiscal year ended December 31, 2019 with the Securities and Exchange Commission on February 28, 2020. A copy of this 10-K may be found on the Partnership's website, www.wlkpartners.com , by selecting the "Investor Relations" tab, then "SEC 10-K Filings." Unitholders of the Partnership may receive a hard copy of its Annual Report on Form 10-K, including complete audited financial statements, free of charge. Requests should be submitted in writing to Westlake Chemical Partners LP – 2019 Form 10-K, 2801 Post Oak Blvd., Suite 600, Houston, TX 77056. About Westlake Chemical Partners LP Westlake Chemical Partners is a limited partnership formed by Westlake Chemical Corporation to operate, acquire and develop ethylene production facilities and other qualified assets. Headquartered in Houston, the Partnership owns a 22.8% interest in Westlake Chemical OpCo LP. Westlake

Westlake Chemical Partners LP (NYSE: WLKP) (the “Partnership”) today announced the recommencement of its At-The-Market program under its Equity Distribution Agreement (as amended, the “Agreement”) with UBS Investment Bank; Barclays; BofA Securities; Citigroup; Deutsche Bank Securities; RBC Capital Markets; and Wells Fargo Securities (collectively, the “Managers”). Pursuant to the terms of the Agreement, the Partnership may offer and sell common units representing limited partner interests in the Partnership (the “Common Units”) from time to time to or through the Managers, as the Partnership’s sales agents or as principals, having an aggregate offering amount of up to $50,000,000. The Partnership intends to use the net proceeds of sales of the Common Units for general partnership purposes, including the funding of potential drop-downs and other acquisitions. The Common Units will be offered and sold pursuant to a shelf registration statement on Form S-3 filed by the Partnership with

Mar. 24, 2020- Westlake Chemical Partners LP (NYSE: WLKP) today announced that Mr. G. Stephen Finley has been appointed to the board of directors of its general partner, Westlake Chemical Partners GP LLC. He will replace Mr. Max L. Lukens, who previously informed the company that he would retire from the board upon the selection of his successor. Mr. Finley was senior vice president, finance and administration, and chief financial officer of Baker Hughes Incorporated from April 1999 until his retirement in April 2006. Previously, he held various financial and administrative management positions with the company from 1982 to 1999. "We are most grateful to Max for his service and wish him the best in his retirement. He has served as a director of the general partner since it was formed in 2014. In addition, he has served on the board of the partnership’s sponsor, Westlake Chemical Corporation, since we took that company public in 2004,” said James Chao, Chairman of Westlake Chemical

Apr. 16, 2020- Westlake Chemical Corporation (NYSE: WLK) today announced that the company and the Ting Tsung and Wei Fong Chao Foundation have contributed a combined $1 million to the Greater Houston COVID-19 Recovery Fund. The Greater Houston COVID-19 Recovery Fund was established by the United Way of Greater Houston and the Greater Houston Community Foundation to provide emergency assistance, like access to food, shelter and health care, for individuals adversely affected by the COVID-19 pandemic. “As part of the Houston community, which has been Westlake’s home and given us so much, we feel it is a privilege to help in a time or need,” said Westlake President and CEO Albert Chao, who is also president of the charitable foundation established in 1999 by the Chao family. In addition to this financial contribution, Westlake sites around the globe and the Ting Tsung and Wei Fong Chao Foundation have both donated personal protective equipment to hospitals and provided financial

Apr. 20, 2020- Westlake Chemical Partners (NYSE: WLKP) will release its 2020 first quarter earnings prior to the market opening on Monday, May 4, 2020. The company will host a conference call at 1:00 p.m. Eastern Time (12:00 p.m. Central Time) on the same day to discuss the earnings release. To access the conference call, dial (855) 765-5686, or (234) 386-2848 for international callers, approximately 10 minutes prior to the scheduled start time and reference passcode 6470789. The conference call will also be available via webcast at https://edge.media-server.com/mmc/p/pz3nynuo and the earnings release can be obtained via the company's Web page at, http://investors.wlkpartners.com/CorporateProfile . A replay of the conference call will be available beginning two hours after its conclusion for seven days. To hear a replay, dial (855) 859-2056 or (404) 537-3406 for international callers. The replay passcode is 6470789. About Westlake Chemical Partners: Westlake Chemical Partners is a

Apr. 20, 2020- Westlake Chemical Corporation (NYSE: WLK) will release its 2020 first quarter earnings prior to the market opening on Monday, May 4, 2020. The company will host a conference call at 11:00 a.m. Eastern Time (10:00 a.m. Central Time) on the same day to discuss the earnings release. To access the conference call, dial (855) 760-8160, or (704) 288-0624 for international callers, approximately 10 minutes prior to the scheduled start time and reference passcode 5672078. The conference call will also be available via webcast at https://edge.media-server.com/mmc/p/ksc4zxqo and the earnings release can be obtained via the company’s Web page at https://www.westlake.com/investor-relations . A replay of the conference call will be available beginning two hours after its conclusion for seven days. To hear a replay, dial (855) 859-2056 or (404) 537-3406 for international callers. The replay passcode is 5672078. About Westlake: Westlake is a global manufacturer and supplier of

$0.4714 cents per unit distribution declared payable on May 26, 2020 Apr. 30, 2020- The Board of Directors of Westlake Chemical Partners GP LLC, the general partner of Westlake Chemical Partners LP (the "Partnership") (NYSE:WLKP), has declared a distribution by the Partnership of $0.4714 per unit. This is the 23rd quarterly distribution announced by the Partnership since its initial public offering. The distribution will be payable on May 26, 2020, to unit holders of record on May 11, 2020. “The strength of the Partnership’s stable and predictable cash flows from 95% of its production at a fixed margin insulated from commodify price risk to its investment grade parent provides flexibility in the uncertain current economic environment caused by COVID-19,” stated Albert Chao, President and Chief Executive Officer of Westlake Chemical Partners GP LLC. “This allows us to maintain our distribution at our prior quarter level to build cash and avoid creating any capital market needs in the

Net income of $1.13 per diluted share, or $145 million, for the first quarter of 2020 Cash and cash equivalents of $1.54 billion EBITDA of $337 million for the first quarter of 2020 May 4, 2020- Westlake Chemical Corporation (NYSE: WLK) (the "Company" or "Westlake") today reported net income attributable to Westlake for the three months ended March 31, 2020 of $145 million, or $1.13 per diluted share, on net sales of $1,932 million. Net income in the first quarter of 2020 increased by $73 million compared to first quarter 2019 net income of $72 million, or $0.55 per diluted share, on net sales of $2,025 million. The increase in net income was primarily due to the income tax rate benefit of $62 million, or $0.48 per diluted share, resulting from the carryback of federal net operating losses, as permitted under the CARES Act enacted in March 2020. Income from operations of $136 million for the first quarter of 2020 increased by $2 million from income from operations of $134 million for

Maintained quarterly distribution of $0.4714 per unit May 4, 2020- Westlake Chemical Partners LP (NYSE: WLKP) (the "Partnership") today reported net income attributable to the Partnership of $17.7 million, or $0.50 per limited partner unit, for the three months ended March 31, 2020, an increase of $2.7 million compared to first quarter 2019 net income attributable to the Partnership of $15.0 million. The increase in net income attributable to the Partnership was primarily due to the increased production at Westlake Chemical OpCo LP ("OpCo") and higher third party sales margins. Cash flows from operating activities in the first quarter of 2020 were $111.0 million, a decrease of $2.5 million compared to first quarter 2019 cash flows from operating activities of $113.5 million. This decrease in cash flows from operating activities was primarily attributable to an increase in working capital. For the three months ended March 31, 2020, MLP distributable cash flow of $18.3 million increased