John Kirchner is an accomplished supply chain executive with extensive experience in various leadership roles across multiple companies. Currently serving as Vice President of Supply Chain at Calumet Specialty Products Partners, L.P. since August 2021, John previously held the position of Managing Partner at rkreek, LLC, where a focus on business transformation was emphasized. Additional experience includes serving as Vice President of Customer Service at Univar, Chief Operating Officer at InnoSource, Transformation Leader at Nexeo Solutions, and Vice President of Global Supply Chain at Ashland, Inc. John Kirchner earned a BSBA and MBA in Marketing and International Business from The Ohio State University between 1981 and 1988.
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