Nov. 5, 2019- Westlake Chemical Corporation (NYSE: WLK) (the "Company" or "Westlake") today reported net income attributable to Westlake for the three months ended September 30, 2019 of $158 million, or $1.22 per diluted share, on net sales of $2,066 million. Net income in the third quarter of 2019 decreased by $150 million, or $1.13 per share, compared to third quarter 2018 net income of $308 million, or $2.35 per share, on net sales of $2,255 million. Income from operations for the third quarter of 2019 of $226 million decreased by $170 million from income from operations of $396 million for the third 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 ethane feedstock and fuel costs. Net sales for the third quarter of 2019 decreased by $189

Nov. 8, 2019- Westlake Chemical Partners LP (NYSE: WLKP) today announced that Mr. Randy G. Woelfel has been appointed to the board of directors of its general partner, Westlake Chemical Partners GP LLC. He will replace Mr. David Lumpkins, who informed the company that he will resign from the board effective November 14, 2019, in order to focus on PetroLogistics II LLC, a petrochemical development company of which he is the chairman and co-founder. Mr. Woelfel was formerly the chief executive officer and a director of NOVA Chemicals Corporation. Prior to joining NOVA, Mr. Woelfel was managing director of energy for the Houston Technology Center; president of Cereplast, Inc.; and he served in a variety of senior positions at Shell Oil Company and its affiliated companies, including as president of Basell International, president of Basell North America and as a board member of numerous Basell International petrochemical ventures. "We are extremely grateful to David for his service on

$0.2625 cents per share dividend declared payable on December 10, 2019 Nov. 15, 2019- The Board of Directors of Westlake Chemical Corporation (NYSE:WLK) declared today a regular dividend distribution of $0.2625 per share for the third quarter of 2019. This dividend will be payable on December 10, 2019, to stockholders of record on November 26, 2019. This is the 61st successive quarterly dividend that Westlake has declared since completing its initial public offering in August 2004. About Westlake Chemical Corporation Westlake Chemical Corporation is an international manufacturer and supplier of petrochemicals, polymers and building products with its headquarters in Houston. Highly integrated along our olefins and vinyls product chains, the company produces: ethylene; polyethylene; propylene; styrene; chlor-alkali and derivative products; PVC suspension and specialty resins; PVC compounds; building products including pipe, fittings and specialty components, decking, roofing, siding,

$0.4714 cents per unit distribution declared payable on February 18, 2020 Jan. 27, 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 of $0.4714 per unit, representing a 1.5% increase from the third quarter 2019 distribution. This is the 22 nd quarterly distribution announced by the Partnership since its initial public offering. The distribution will be payable on February 18, 2020, to unit holders of record on February 3, 2020. This release is intended to be a qualified notice under Treasury Regulation Section 1.1446-4(b). Brokers and nominees should treat one hundred percent (100.0%) of the Partnership’s distributions to non-U.S. investors as being attributable to income that is effectively connected with a United States trade or business. Accordingly, the Partnership’s distributions to non-U.S. investors are subject to federal income tax withholding at

Feb. 4, 2020- Westlake Chemical Corporation (NYSE: WLK) will release its 2019 fourth quarter and full year earnings prior to the market opening on Tuesday, February 18, 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 8467639. The conference call will also be available via webcast at https://edge.media-server.com/mmc/p/jnqbqhhd 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 8467639. About Westlake Chemical: Westlake Chemical

Feb. 4, 2020- Westlake Chemical Partners (NYSE: WLKP) will release its 2019 fourth quarter and full year earnings prior to the market opening on Tuesday, February 18, 2020. The company will host a conference call at 12:00 p.m. Eastern Time (11:00 a.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 5679302. The conference call will also be available via webcast at https://edge.media-server.com/mmc/p/riphu4nv 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 5679302. About Westlake Chemical Partners: Westlake

$0.2625 cents per share dividend declared payable on March 10, 2020 Feb. 14, 2020- The Board of Directors of Westlake Corporation (NYSE:WLK) declared today a regular dividend distribution of $0.2625 per share for the fourth quarter of 2019. This dividend will be payable on March 10, 2020, to stockholders of record on February 25, 2020. This is the 62nd successive quarterly dividend that Westlake has declared since completing its initial public offering in August 2004. About Westlake Corporation Westlake Corporation is an international manufacturer and supplier of petrochemicals, polymers and building products with its headquarters in Houston. Highly integrated along our olefins and vinyls product chains, the company produces: ethylene; polyethylene; propylene; styrene; chlor-alkali and derivative products; PVC suspension and specialty resins; PVC compounds; building products including pipe, fittings and specialty components, decking, roofing, siding, trim

Record annual net income attributable to the Partnership of $61.0 million; record annual MLP distributable cash flow of $73.2 million Record annual production at OpCo Increased quarterly cash distribution in the fourth quarter by 1.5% sequentially, or 6% annualized, compared to the third quarter 2019 distribution, to $0.4714 per unit, the 20th consecutive quarterly increase in distributions Feb. 18, 2020- Westlake Chemical Partners LP (NYSE: WLKP) (the "Partnership") today reported net income attributable to the Partnership of $17.4 million, or $0.49 per limited partner unit, for the three months ended December 31, 2019, an increase of $5.5 million compared to fourth quarter 2018 net income attributable to the Partnership of $11.9 million. The increase in net income attributable to the Partnership was primarily due to the Partnership's increased ownership interest in Westlake Chemical OpCo LP ("OpCo") resulting from the acquisition of an additional 4.5% interest in OpCo in the first

Feb. 18, 2020- Westlake Chemical Corporation (NYSE: WLK) today announced that its board of directors has appointed Johnathan Zoeller, 44, to serve as the company’s vice president and chief accounting officer. His appointment will become effective upon the retirement of his predecessor, George Mangieri, who, as previously disclosed, plans to retire from the company about March 31, 2020. Mr. Zoeller joined Westlake in August 2018, as vice president and corporate controller. With over 19 years of public accounting experience, Mr. Zoeller previously was an audit partner with KPMG in its Houston office, where he was responsible for clients in the chemicals, oilfield services and oil/gas exploration and production industries. Mr. Zoeller, a Certified Public Accountant, began his career with Arthur Andersen LLP in 1998. He holds bachelor’s and master’s degrees in accounting from the University of Mississippi. “We are extremely grateful to George for his nearly 20 years of service to Westlake

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