| Stephen Patrick Mawer |
Stephen Patrick Mawer is currently the Chairman at Calumet Specialty Products Partners LP, Calumet GP LLC, and ClimeCo LLC. He is also the Director at Howard Midstream Energy Partners LLC and Zenith Energy Management LLC. Previously, he served as the President & Director at Koch Supply & Trading Co. Ltd. and President at KS&T International Holdings LP. He received his undergraduate and graduate degrees from the University of Cambridge. |
| David A. Lunin |
David A. Lunin is currently an Independent Director at Medalist Diversified REIT, Inc. and the Chief Financial Officer & Executive Vice President at Calumet Specialty Products Partners LP and Calumet GP LLC. He has an undergraduate degree from George Washington University, a graduate degree from The Johns Hopkins University, and an MBA from Columbia Business School. |
| Louis Todd Borgmann |
Louis Todd Borgmann is currently the Chief Executive Officer at Calumet Specialty Products Partners LP and Calumet GP LLC. He started his current positions in 2022. Prior to his current roles, he obtained an undergraduate degree from Purdue University and an MBA from Notre Dame University. |
| Daniel L. Sheets |
Daniel L. Sheets currently works at Calumet Specialty Products Partners LP, as Independent Director and Calumet GP LLC, as Independent Director from 2018. Mr. Sheets also formerly worked at Citizen's Academy LLC, as Director, The Lubrizol Corp., as Senior VP & President-Lubrizol Additives from 2015 to 2018, Lubrizol Advanced Materials, Inc., as President, and The Lubrizol Foundation, as Trustee. Mr. Sheets received his undergraduate degree in 1979 from The Pennsylvania State University. |
| James S. Carter |
James S. Carter is currently an Independent Director at Calumet Specialty Products Partners LP since 2006. He is also a Director at Calumet GP LLC since 2006. Additionally, he is a Member of the Association of Audit Committee Members, Inc. In the past, Mr. Carter worked as a Regional Director-United States Region at ExxonMobil Fuels Marketing Co. from 1999 to 2003. He also held positions as a Manager-US Refining & Marketing Planning at Exxon Mobil Corp. and as an Analysis Manager at ExxonMobil International Ltd.Mr. Carter completed his undergraduate degree at Clemson University and obtained an MBA from Tulane University (Louisiana). |
| John G. Boss |
John G. Boss is currently serving as a Director at Libbey, Inc. He is also an Independent Director at Wabash National Corp., Cooper-Standard Holdings, Inc., Calumet Specialty Products Partners LP, Cooper-Standard Automotive, Inc., Calumet GP LLC, and Capital Region Chamber. In his former positions, Mr. Boss served as the President & Chief Executive Officer at Momentive Specialty Chemicals Holdings LLC. He was also the President, Chief Executive Officer & Director at MPM Holdings, Inc., Momentive Performance Materials Holdings, Inc., and Momentive Performance Materials, Inc. Additionally, he held the position of Vice President & Business Director at Ashland LLC and VP, GM-Specialty & Fine Chemicals Business at Great Lakes Chemical Corp. He served as the President-Safety Products at Honeywell International, Inc. and President-Safety Products & Solutions at Honeywell Safety Products USA, Inc.Mr. Boss obtained his undergraduate degree from West Virginia University in 1981. He later earned an MBA from Rutgers Business School in 1996. |
| Karen A. Twitchell |
Karen A. Twitchell is currently a Director at Kraton Polymers LLC, a Director at Kraton Corp., an Independent Director at Calumet Specialty Products Partners LP, an Independent Director at Calumet GP LLC, a Director at HMTX Industries LLC, and a Treasurer & Vice President at Equistar Chemicals LP. She has formerly held positions such as Chairman at Trecora LLC, Independent Director at CMC Materials KMG Corp., Independent Director at Kraton Corp., Treasurer & Vice President at Kaiser Aluminum Corp., Treasurer & Vice President at Southdown, Inc., Treasurer & Vice President at Lyondell Chemical Co., Chief Financial Officer & Executive Vice President at Landmark Aviation, Inc., Chief Financial Officer & Executive Vice President at Landmark FBO LLC, and Treasurer & Vice President at LyondellBasell Industries, Inc. Twitchell received her undergraduate degree from Wellesley College and her MBA from Harvard Business School. |
