斯特潘公司 SCL

Luis E. Rojo President and Chief Executive Officer of the Company since October 2024. Vice President and Chief Financial Officer of the Company from April 2018 through October 2024. From February 2018 to April 2018, Mr. Rojo served as Global Hair Care Finance Director at Procter and Gamble Co. (P&G), a branded consumer packaged goods company. From April 2014 to February 2018, he served as North America Hair Care Finance Director at P&G. From 1997 to 2014, he served in various finance roles within P&G with increasing responsibilities throughout North America, Latin America, and Asia.

Sean T. Moriarty has served the Company as Vice President and General Manager - Surfactants since January 2021. From September 2017 through December 2020, he served as Vice President and General Manager - Polymers of the Company.

Richard F. Stepan has served the Company as Vice President and General Manager - Polymers since January 2021. From January 2019 through December 2020, Mr. Stepan served as Vice President, Consumer Products, and from September 2014 through December 2018, Mr. Stepan served as Director, Consumer Products, North America of the Company.

Ruben D. Velasquez has served the Company as Vice President and Chief Financial Officer since July 2025. From September 2022 to July 2024, Mr. Velasquez served as Vice President Global Finance Transformation at 3M Company, a diversified manufacturing conglomerate. From July 2021 to September 2022, he served as Vice President Global Finance Manufacturing & Supply Chain Operations at 3M Company. From February 2006 to September 2022, he served as Vice President Global Finance Consumer Business at 3M Company.

Mr. Randall S. Dearth, Independent advisor to specialty chemical companies. Senior Director of SK Capital Partners, LP, a private investment firm, from January 2021 through January 2025. President and Chief Executive Officer of GCP Applied Technologies Inc., a leading global provider of construction products technologies, from August 2019 to September 2020. President and Chief Operating Officer of GCP Applied Technologies Inc. from September 2018 to August 2019.

Joaquin Delgado, Executive Vice President, Consumer Business Group of 3M Company, a global diversified technology company, from July 2016 to July 2019. Executive Vice President, Health Care Business Group of 3M Company, from October 2012 to July 2016. Trustee of each of Goldman Sachs Trust, Goldman Sachs Trust II, Goldman Sachs ETF Trust, Goldman Sachs ETF Trust II, Goldman Sachs Variable Insurance Trust, and Goldman Sachs Real Estate Diversified Income Fund, each of which is registered as an investment company under the Investment Company Act of 1940.

Ms. Lorinda A. Burgess, Vice President, Finance and Chief Financial Officer, Americas Region of Medtronic Inc., a medical technology company, from March 2015 through June 2023. Director of AngioDynamics, Inc. (NASDAQ: ANGO).

Mr. Corning F. Painter, Chief Executive Officer of Orion S.A., a public chemical company, since September 2018. Prior to joining Orion, Mr. Painter was the Executive Vice President for the Industrial Gases division at Air Products and Chemicals, Inc., a publicly traded global industrial gas company, from 2014 until 2018. From 2013 to 2014, he served as Air Products and Chemicals' Senior Vice President of Merchant Gases.

On July 28, 2026, the Board appointed Matthew J. Eaken to serve as the Company's Principal Accounting Officer, effective July 28, 2026. Mr. Eaken, has served as the Company's Vice President and Corporate Controller since January 2011. Mr. Eaken joined the Company in June 1998 and has served in various accounting and finance leadership roles, including as Interim Vice President and Chief Financial Officer from January 2018 until April 2018.

Andrea J. Barry has served the Company as Vice President and Chief Human Resources Officer since September 2025. From January 2022 to May 2025, Mrs. Barry served as Chief Human Resources Officer and Chief Administrative Officer at Methode Electronics, Inc., a global supplier of custom-engineered solutions. From May 2017 to January 2022, she served as Executive Vice President and Chief Human Resources Officer at Methode Electronics, Inc.