Management

President and Chief Executive Officer

Todd Borgmann has served as a member of the board of directors of Calumet, Inc. since July 2024 and as Chief Executive Officer since May 2022. Prior to that, he was executive vice president - chief financial officer of the General Partner since February 2021. Mr. Borgmann has over fifteen years of experience with Calumet, serving the Company across a diverse set of management roles. For the five years preceding the appointment to his current position, Mr. Borgmann served as Senior Vice President - Chief Financial Officer, Senior Vice President - Interim Chief Financial Officer, Vice President of Supply & Trading, developing extensive knowledge of petroleum markets, refining operations and risk management. Mr. Borgmann has also served as Calumet’s Vice President of Business Development and Director of the Partnership’s White Oils and Petroleum sales. Mr. Borgmann earned a Bachelor of Science in Industrial Engineering from Purdue University and a Masters of Business Administration from the University of Notre Dame.

EVP & Chief Financial Officer

David Lunin was named Executive Vice President — Chief Financial Officer of Calumet effective January 2024. Prior to joining the Company, Mr. Lunin served in progressive roles with Goldman Sachs & Co. LLC from July 2010 to May 2023, most recently serving in the position of Managing Director. Prior to Goldman Sachs, he served as Research Associate with Cornerstone Research and Associate with LECG, LLC. He holds a Bachelor of Business Administration from George Washington University, a MA in Applied Economics from Johns Hopkins University, and a Master of Business Administration from Columbia Business School.

Executive Vice President, Montana/Renewables and Corporate Development

Bruce A. Fleming has served as Executive Vice President, Montana/Renewables and Corporate Development of our General Partner since February 2021. From March 2016 until the appointment to his current position, Mr. Fleming served as executive vice president - strategy & growth of our general partner. Prior to joining the Company, Mr. Fleming served as the vice president of mergers & acquisitions at Tesoro Corporation and as an officer of Tesoro Companies Inc. since 2004. From 1997 through 2004, Mr. Fleming served as managing director of Hong Kong-based Orient Refining Ltd., and from 1981 through 1996 he held senior operations, business development and planning roles with Amoco Oil and Amoco Corporation where he was most recently vice president of China business development. Mr. Fleming earned a Ph.D. in chemical engineering from Princeton University and a B.S. in chemical engineering from the University of Delaware. He is a member of the Board of M&A Standards.

President Specialties

Scott Obermeier has served as President, Specialties since November 2025. He previously served as Executive Vice President, Specialties from January 2023 to November 2025. He joined the Company in November 2017 as a vice president and has served in a number of leadership roles since.  Mr. Obermeier has 30 years of experience in sales and marketing as well as general management roles focused on the specialty chemicals market. Prior to his work with Calumet, he spent 10 years with Univar Solutions Inc., most recently serving as vice president where he managed the global chemical distributor’s organic chemicals business. Mr. Obermeier is a graduate of the University of Northern Iowa, with a degree in chemistry marketing.