艺柯维斯特 ECVT

Kurt J. Bitting has served on our Board since April 2022. Mr. Bitting became our Chief Executive Officer in April 2022. Prior to that, he served as our Vice President and President-Ecoservices (formerly Refining Services) from March 2019 to April 2022. From September 2017 until February 2019, Mr. Bitting served as our Vice President of Ecoservices. Between May 2016 and August 2017, he was our Business Director in the Eco Services business. Mr. Bitting also previously held management positions at Kinder Morgan, Inc., Sprint Corporation, Solvay USA Inc., and Eco Services Operations LLC. Mr. Bitting began his career in the U.S. Army where he served as a Company Commander in the 10th Mountain Division.

Joseph S. Koscinski became our Vice President, Chief Administrative Officer, General Counsel and Secretary in January 2023 after having served as Vice President, General Counsel and Secretary from November 2015 to December 2022. From August 1995 to October 2015, Mr. Koscinski was an attorney in the Business Services Group of Babst, Calland, Clements and Zomnir, P.C., a law firm in Pittsburgh, Pennsylvania, where he was named a shareholder in 2003 and where his corporate practice included mergers and acquisitions, real estate matters and commercial contracts. While in private practice, Mr. Koscinski served as our outside Corporate Counsel from 2005 to 2015.

Michael Feehan became our Vice President and Chief Financial Officer in August 2021. From May 2016 to August 2021, Mr. Feehan served as our Vice President of Finance and Treasurer, and prior to that served as our Corporate Controller beginning in 2008 after joining in 2006. Prior to joining us, Mr. Feehan served as Director of Finance and Corporate Controller for Radnor Holdings Corporation, and began his career in public accounting with Arthur Andersen and KPMG.

Kevin M. Fogarty became a director and our Chairman in April 2022, and he became chairman of our Nominating and Corporate Governance Committee in July 2022, serving in that position until December 31, 2023. From January 2008 until March 2022, Mr. Fogarty served as Kraton Corporation's President and Chief Executive Officer and as a member of its board of directors from September 2009 until March 2022. From May 2005 to December 2007, he served as Kraton's Executive Vice President of Global Sales and Marketing. From May 2004 to April 2005, Mr. Fogarty served as President, Polymers and Resins, of Invista. From 1991 to April 2004, Mr. Fogarty held a variety of roles within the Koch Industries, Inc. family of companies. Since November 2024, Mr. Fogarty has served as Chairman of the board of directors and as a member of the Compensation Committee of Magnera Corporation, which was created as a result of the November 2024 merger of P.H. Glatfelter Company and the Health, Hygiene and Specialties Global Nonwovens and Films business of Berry Global. Prior to the creation of Magnera Corporation and between 2012 and November 2024, he served as Chairman of the board of directors of Glatfelter and also served on its Compensation Committee and Nominating and Corporate Governance Committee. Since 2022, he also has served on the board of directors of OPAL Fuels Inc., where he also serves on its Audit and Compensation Committees. He formerly has served as a director of the American Chemistry Council.

Donald Althoff has served on our Board since May 2024. Mr. Althoff has over 40 years of experience in the chemical and energy industries. From September 2019 to September 2022, he served as Director and Chairman of the Board of Vereson Midstream LP, and from September 2019 to December 2022, he served as Director of Alliance Pipeline and Aux Sable LP. From October 2017 to September 2019, he served as President and Chief Executive Officer of Veresen Midstream LP, and he served as President and Chief Executive Officer of Veresen Inc. from November 2012 to September 2017. From October 2008 to September 2012, he served as President and Chief Executive Officer at Flex Fuel. From 1981 to 2008, Mr. Althoff served in roles of increasing responsibility with Amoco Corporation and BP PLC. Mr. Althoff holds a Bachelor of Science in Chemical Engineering from the University of Illinois.

David A. Bradley has served on our Board since April 2022. Since March 2019, Mr. Bradley has served as the President and Chief Executive Officer and member of the board of directors of SI Group. Prior to joining SI Group, Mr. Bradley served as President and Chief Executive Officer and member of the board of directors of Nexeo Solutions between 2011 and 2019. Prior to that, Mr. Bradley spent seven years at Kraton Corporation, where he held several executive positions, including Chief Operating Officer, Vice President of Global Operations, and Vice President of Business Transformation. Since 2019, he also has been a member of the board of directors of South Texas Truck Centers LLP.

Anna C. Catalano has served on our Board since July 2022. Ms. Catalano has over 30 years of business experience, including senior roles at BP plc and its predecessor company, Amoco Corporation, until her retirement in 2003 and two decades of public and private board service. In September 2008, she co-founded The World Innovation Network, a nonprofit network of innovators to work toward global prosperity, and continued to work with that organization until 2021. Since 2017, she has served on the board of directors of HF Sinclair Corporation, where she is a member of the Nominating, Governance and Social Responsibility and Compensation Committees. Since 2018, she has served on the board of directors of Frontdoor, Inc., where she is the chair of the Compensation Committee. Since May 2022, she has served on the board of directors of Hexion, Inc. Previously, she served on the boards of directors of Willis Towers Watson from June 2006 until June 2022 and Kraton Corporation from September 2011 until March 2022.

Bryan K. Brown has served on our Board since April 2022. Mr. Brown has served as a partner at Jones Day in its Financial Markets - Capital Markets practice since April 2019. Prior to joining Jones Day, Mr. Brown served as a partner at Reed Smith from November 2013 to April 2019, at Thompson Knight from March 2012 to November 2013, and Porter Hedges from May 1998 to February 2012. Mr. Brown currently serves as a member of the board of advisors of the College of Business at Sam Houston University and The John Cooper School, where he is a member of the Audit Committee. Prior to entering private practice, Mr. Brown worked at the Division of Corporate Finance at the U.S. Securities and Exchange Commission. Mr. Brown is an active member of the National Association of Corporate Directors (NACD), and has completed the NACD Directorship Certified program. From September 1986 until September 2006, Mr. Brown served in the U.S. Army and he was honorably discharged at the rank of Captain in September 2006.

Sarah Lorance has served on our Board since March 2024. Ms. Lorance has over 25 years of business experience, including as Owner and Executive Consultant at Autumn Advisors, LLC since November 2021 and in various capacities from March 1998 to October 2020 at Elevance Health, Inc. (formerly Anthem, Inc.), where she most recently served as Chief Compliance Officer. Additionally, she has served on the board of directors of VSP Vision since January 2024, where she is a member of the Finance and Audit Committees. Ms. Lorance has also served on the board of directors of the Knoebel Institute of Healthy Aging at the University of Denver since September 2023, where she is an advisory board member. Between January 2015 and October 2024, she served on the board of directors of the Alzheimer's Association, where she was Chair of the Board, Chair of the Executive Committee, and a member of the Compensation, Governance and Nominating, Finance and Audit Committees. She holds a B.B.A. degree in Accounting from the University of Iowa. She also is a certified public accountant (inactive) and is NACD Directorship Certified.

Paul Hoelzer became our Vice President-Operations in September 2025. From October of 2022 to September of 2025, Mr. Hoelzer served as our Global Director of Health, Safety, and Process Safety Management, and prior to that served as Director of Manufacturing of our subsidiary Eco Services Operations Corp. from June 2019 to October 2022. From January 2008 to June 2019, Mr. Hoelzer held a variety of operational roles of increasing responsibility with AkzoNobel. Prior to that, Mr. Hoelzer held several operational roles at Imperial Chemical Industries and DuPont.

Ms. Humble, 61, has over 30 years of experience as an accounting and finance executive. From August 2019 until her retirement in December 2024, she served as Chief Accounting Officer for United Parcel Service, a global shipping, receiving and supply chain management company. In addition, she also served in a variety of other capacities with United Parcel Service, including as Vice President, External Reporting; Vice President, Financial Planning & Analysis; Vice President, Global Accounting Shared Services Centers; Controller, Statutory Reporting; Business Unit Controller, International Accounting, for UPS Supply Chain Solutions; Controller, Technical Accounting; Controller, Mergers & Acquisitions; and Director, Accounting and Human Resources at UPS Yamato Partnership dba Unistar Air Cargo joint venture. Since July 2021, she has served as a director of the Institute of Management Accountants, and she currently serves as chair of its Audit Committee and previously as a member of its governance and strategic planning committees. Since September 2021, she has served as a member of the advisory board of the University of Iowa Tippie College of Business Professional Accounting Council. From 2019 until 2023, she also served as a member of the Kennesaw State University Accounting Advisory Committee. Ms. Humble also is a certified public accountant, certified Global Management Accountant, Certified Management Accountant and is certified in Financial Management. In addition, she holds a National Association of Corporate Directors certification. Ms. Humble holds a Bachelor of Business Administration (with high distinction) in Accounting from the University of Iowa. Ms. Humble was selected from among a group of candidates identified by the Nominating and Corporate Governance Committee as part of the Board's recruitment and refreshment process and was nominated for election to the Board as a result of her substantial financial and accounting experience as well as her general business experience.

Kara L. Thornton became our Vice President and Chief Human Resources Officer in January 2024. She has a long successful career in human resource management. Prior to Ecovyst and from July 2019 until January 2024, Ms. Thornton served as Senior Vice President of HR at Neuronetics, a public medical device company based in Malvern, Pennsylvania. Her career also includes HR roles at Sun Pharmaceutical Industries from May 2018 until July 2019, DSM North America from August 2008 until May 2018, and Johnson & Johnson from December 2004 until August 2007. Prior to that, she held HR roles at Bayer Healthcare and Sankyo Pharma.

Colleen Grace Donofrio became our Vice President-Environment and Sustainability in August 2023. Prior to joining Ecovyst, Mrs. Donofrio was a shareholder in the environmental law practice of Pittsburgh, PA.-based Babst, Calland, Clements and Zomnir, P.C., where she served as outside environmental counsel to Ecovyst and its predecessors from 2005 until August 2023.