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Jack Supple, MBA, CMA, CFM, has over 20 years of experience in financial management, predominantly in controller roles across various industries. Jack served as Plant Controller at Calumet Specialty Products Partners, L.P. from June 2012 to May 2018, and previously held the same title at Potash Corporation of Saskatchewan from June 2004 to May 2012 and at Rexam from 2000 to 2004. Earlier in Jack's career, a role as Senior Financial Analyst at GE Aircraft Engines from 1998 to 2000 provided foundational experience in financial analysis. Jack's educational background includes an MBA and a Bachelor's degree in Business with a focus on Accounting from Bryant University, earned between 1985 and 1992.