Biography

Steven M. Sterin has been a member of the Kosmos board of directors since July 2019. Mr. Sterin has served on the Board of Directors of Qnity Electronics, Inc. since November 2025 and currently serves as Chair of the Audit Committee.  Mr. Sterin previously served on the Board of Directors of DuPont de Nemours, Inc. from 2019 to 2025 and was an advisory member of the Special Products Division from 2017 to 2019. Mr. Sterin has also provided consulting services to Amber Energy since February 2026. Mr. Sterin was previously Co-Founder & President of G&S Energy Holdings, LLC, an independent energy company focused on the acquisition, safe operation and optimization of downstream and renewable energy assets in the U.S., from August 2021 to December 2022. He previously served as a Senior External Advisor to McKinsey & Company, from June 2019 until August 2021 and again from April 2023 to February 2026. Mr. Sterin was most recently an Executive Vice President and the Chief Financial Officer of Andeavor & Andeavor Logistics from 2014 until the merger with Marathon Petroleum Company in October 2018.  He served as President of Andeavor Logistics from 2017 to October 2018 and was a member of the Board of Directors for Andeavor Logistics GP, LLC from 2014 to 2018.  Mr. Sterin was also responsible for Corporate Strategy & Business Development for both companies from 2016 to 2017.  From 2007 to 2014, Mr. Sterin was the Senior Vice President and Chief Financial Officer for Celanese Corporation, a global technology and specialty material company.  During his eleven years with Celanese, he served as Corporate Controller and Principal Accounting Officer as well as held other financial and business leadership roles.  Prior to his tenure at Celanese, Mr. Sterin spent six years with Reichhold, Inc., a global chemical company, in a variety of financial positions, including Director of Tax and Treasury in the Netherlands, Global Treasurer and Vice President of Finance.  Mr. Sterin’s career started with Price Waterhouse Coopers. Mr. Sterin holds a Master’s degree in Professional Accounting and a Bachelor’s degree in Business Administration and Accounting, which he earned concurrently at the University of Texas at Austin.  He is a Certified Public Accountant in Texas.