Westlake Chemical Partners Appoints Jonathan H. Baksht as Senior Vice President and Chief Financial Officer

Westlake Chemical Partners LP (NYSE: WLKP) (the "Partnership") announced today that Mr. Jonathan H. Baksht will be joining the Partnership as Senior Vice President and Chief Financial Officer and as a director of Westlake Chemical Partners GP LLC, the general partner of the Partnership (the “General Partner”), effective June 15, 2026. Mr. Baksht succeeds Mr. M. Steven Bender, who, as previously disclosed, will retire by the end of the year and, effective June 15, 2026, will retire from the Board of Directors of the General Partner and transition from his position as Executive Vice President and Chief Financial Officer of the General Partner to the position of Special Advisor to the President of the General Partner. Mr. Baksht most recently served as Executive Vice President and Chief Financial Officer of Fortune Brands Innovations, Inc. from May 2025 to March 2026. From May 2022 to May 2025, Mr. Baksht served as Chief Financial Officer of Pactiv Evergreen Inc. (now Novolex) and from

Westlake Corporation Appoints Jonathan H. Baksht as Senior Vice President and Chief Financial Officer

Westlake Corporation (NYSE: WLK) (the “Company” or “Westlake”) announced today that Mr. Jonathan H. Baksht will be joining the company as Senior Vice President and Chief Financial Officer, reporting to Mr. Jean-Marc Gilson, Westlake’s President and Chief Executive Officer. Mr. Baksht succeeds Mr. M. Steven Bender, who, as previously disclosed, will retire by the end of the year and, effective June 15, 2026, will transition from his position as Executive Vice President and Chief Financial Officer of the Company to the position of Special Advisor to the President of the Company. Mr. Baksht most recently served as Executive Vice President and Chief Financial Officer of Fortune Brands Innovations, Inc. from May 2025 to March 2026. From May 2022 to May 2025, Mr. Baksht served as Chief Financial Officer of Pactiv Evergreen Inc. (now Novolex) and from August 2013 to September 2021, Mr. Baksht held various positions at Valaris Limited, including most recently as Chief Financial Officer from

Mr. Powers has been our Senior Vice President, Performance & Essential Materials Segment Head since April 2026. From May 2025 to March 2026, Mr. Powers served as our Vice President, Epoxy. Prior to joining Westlake, Mr. Powers was Vice President, Americas Region for Saudi Basic Industries Corporation (SABIC), from May 2022 to May 2025. From January 2020 to May 2022, he served as President and Managing Director of Memcor Australia, a DuPont company, and from March 2018 to May 2022, he was Director, M&A Strategy for DuPont de Nemours, Inc. Mr. Powers began his career with The Dow Chemical Company in July 1991, where he held a variety of commercial, marketing, product development and technical roles, including most recently, from January 2011 to March 2018 as Business Development Director for Dow’s Energy and Water business, and from January 2008 to January 2011, as Global Business Director for Dow’s polyurethane rigid foams business based in Milan. Mr. Powers holds a B.S. in Chemical Engineering from the University of Michigan and has completed the Executive Program at Indiana University’s Kelley School of Business.

Brian J Powers

Westlake Corporation Chief Financial Officer Steve Bender has been named Plastics News’ 2026 CFO of the Year. Plastics News presented the honor at its Executive Forum in Clearwater Beach, Florida. The award, presented in partnership with Plante Moran/PMCF, “highlights executives who play a key role in driving financial performance, strategic growth and long-term value creation,” according to Plastics News. 

“This honor really reflects the strength of our entire team,” Bender said. “No CFO succeeds alone — it’s our finance organization, operational leaders and employees across our plants who challenge us to be better every day." 

“Our industry sits at the center of modern life,” he added. “The materials we produce make food safer and vehicles lighter, and they help drive progress. I’m proud to be part of it and honored to be recognized alongside such an exceptional group of peers.” 

As CFO of Westlake, Bender has helped guide the company through a period of growth and market challenges, focusing on disciplined financial management and strategic investment.

 

  • Westlake’s Steve Bender Named Plastics News CFO of the Year

Mr. Patel has been a director since February 2026. Mr. Patel served as President of Standard Industries until June 2024, having been elevated to that role in April 2023 from W.R. Grace & Co., a Standard Industries subsidiary that he joined as Chief Executive Officer in January 2022. From January 2015 to January 2022, Mr. Patel served as Chief Executive Officer of LyondellBasell Industries NV. He joined LyondellBasell in March 2010 and, prior to becoming Chief Executive Officer, held several senior leadership roles within the company, including Senior Vice President and subsequently Executive Vice President of Olefins & Polyolefins – Europe, Asia & International and Technology. Mr. Patel began his career at Chevron Corporation and Chevron Phillips Chemical Company, where over approximately 20 years he held a number of senior roles, including leadership positions based in both Singapore and the United States. He has served on the Board of Directors of Air Products Chemicals, Inc. since January 2025 and the Board of Directors of the Federal Reserve Bank of Dallas’ Houston Branch since January 2021. Previously, Mr. Patel served on the Board of Directors Halliburton Company from January 2021 to May 2025 and the Board of Directors of Union Pacific Corporation from February 2017 to May 2021. Mr. Patel received a bachelor’s of science degree in chemical engineering from The Ohio State University and an M.B.A from Temple University.

Bhavesh V. Patel

Mr. Gilson has been our President and Chief Executive Officer since July 2024 and a director since February 2026. Mr. Gilson has also served as President and Chief Executive Officer and a director of Westlake Partners' general partner since July 2024. Prior to joining Westlake, Mr. Gilson served as President, Chief Executive Officer and Representative Director of Mitsubishi Chemical Group Corporation (formerly known as Mitsubishi Chemical Holdings Corporation), from April 2021 until April 2024. From September 2014 until December 2020, Mr. Gilson served as Chief Executive Officer of Roquette Frères. Before that, Mr. Gilson served as Vice-Chairman and Chief Operating Officer of NuSil Technology LLC. Earlier in his career, Mr. Gilson held various leadership roles at Dow Corning Corporation, including Executive Vice President, Specialty Chemicals Business, before becoming Chief Executive Officer of Avantor Performance Materials, Inc. Mr. Gilson has served on the Board of Directors of Corteva, Inc. since April 2026. Mr. Gilson holds a Master of Science in Chemical Engineering from the University of Liege in Belgium and an Executive Master of Business Administration from the International Institute for Management Development in Switzerland.

Jean-Marc Gilson

Westlake Chemical Partners LP Filed Annual Report

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, 2025 with the Securities and Exchange Commission on March 4, 2026. 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 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 – 2025 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 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 Chemical OpCo

Westlake Corporation Reports Fourth Quarter and Full Year 2025 Results

Meaningful actions taken in 2025 to optimize footprint, improve plant reliability, and structurally reduce costs expected to provide earnings improvement in 2026 Westlake Corporation (NYSE: WLK) (the "Company" or "Westlake") today announced fourth quarter and full year 2025 results. SUMMARY FINANCIAL HIGHLIGHTS ($ in millions except per share data and percentages) Three Months Ended Twelve Months Ended December 31, September 30, December 31, December 31, 2025 2025 2024 2025 2024 Westlake Corporation Net sales $ 2,533 $ 2,838 $ 2,843 $ 11,170 $ 12,142 Income (loss) from operations $ (671) $ (766) $ 66

Westlake Chemical Partners LP Announces Fourth Quarter and Full Year 2025 Results

Strong fourth quarter coverage ratio of 1.13x following the completion of the Petro 1 turnaround Declared quarterly distribution of $0.4714 per unit; 46 th consecutive quarterly distribution Westlake Chemical Partners LP (NYSE: WLKP) (the "Partnership") today reported net income attributable to the Partnership in the fourth quarter of 2025 of $14.5 million, or $0.41 per limited partner unit, which was relatively in line with fourth quarter 2024 net income of $15.0 million. Cash flows from operating activities in the fourth quarter of 2025 were $120.4 million, a decrease of $12.1 million compared to fourth quarter 2024 cash flows from operating activities of $132.5 million, due to lower net income and less favorable working capital changes. For the three months ended December 31, 2025, MLP distributable cash flow was $18.8 million providing a quarterly coverage ratio of 1.13x. The increase in MLP distributable cash flow of $3.8 million compared to the fourth quarter of 2024 was

Westlake Corporation Appoints New Directors to its Board

Westlake Corporation (NYSE: WLK) announced that Mr. Bhavesh V. “Bob” Patel and Mr. Jean-Marc Gilson, the President and Chief Executive Officer of the Company, have been elected to the company’s board of directors, effective February 20, 2026. “We are very pleased to welcome Bob to our board,” said Westlake Corporation Executive Chairman Albert Chao. “He brings a wealth of experience and in-depth knowledge of the chemicals and building materials industries and adds to the already deep expertise our board has in this area. We are also pleased to welcome Jean-Marc to the board in recognition of his continued leadership of the company. His presence on the board is expected to further enhance communication and strategic alignment between management and the board.” Mr. Patel, age 59, served as President of Standard Industries until June 2024, having been elevated to that role in April 2023 from W.R. Grace & Co., a Standard Industries subsidiary that he joined as Chief Executive Officer