Board of Directors

Karen Twitchell

• Class III director

Karen A. Twitchell has served as a member of the board of directors of Calumet, Inc. since July 2024. Ms. Twitchell previously served as a member of the board of the General Partner since August 2022. Ms. Twitchell brings more than a dozen years of Board experience and 30 years of executive experience to the Board of Calumet. Ms. Twitchell was Chair of the Board of Trecora Resources (NYSE: TREC), a petrochemical and specialty wax manufacturer, until the sale of the company in June 2022. In addition, she serves on the Board of Kraton Corp and HMTX Industries. Previously, she served on KMG Chemicals’ (NYSE: KMG) Board. From 2010 to 2013, Ms. Twitchell was Executive Vice President and Chief Financial Officer of Landmark Aviation, a private equity-backed fixed base operator for the aviation industry. Prior to 2010, Ms. Twitchell was Vice President and Treasurer of LyondellBasell Industries/Lyondell Chemical Company. Ms. Twitchell has also held senior management positions in the aluminum and cement manufacturing industries. Ms. Twitchell has a B.A. in Economics from Wellesley College and an MBA degree from Harvard Business School.

Ms. Twitchell brings extensive leadership experience in the chemicals industry. Her background provides helpful insight to the Company in its implementation of strategic initiatives and operations in general.

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  Member
  Audit Committee
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  Member
  Nominating and Governance Committee