SunCoke Energy, Inc. appointed Katherine T. Gates to succeed the retiring Michael G. Rippey as CEO, effective May 15, 2024. She will retain her current position as president and serve as president and CEO, and she will also continue to serve as a member of the board. The company credited Rippey with successfully restructuring and strengthening the organization while reducing its risk prole by promoting a culture that valued safety and integrity, as well as profitability. Gates’ executive experience with SunCoke spans more than a decade.