Jonathan joined Celgard in 2018 as the Director of Human Resources. He has held business partner and leadership roles in Human Resources at United Technologies Corporation, Raytheon Company, Hyster-Yale Group and Thermo Fisher Scientific. Jonathan holds a Master of Industrial and Labor Relations from Cornell University and a Bachelor of Science in Business Management from Clemson University.
Ian McCallum joined Celgard in 2015 as the Director of Global Strategic Marketing, shortly prior to the company’s acquisition by Asahi Kasei. Since joining the company, Ian has performed additional leadership roles including Product Management and Sales Operations. Prior to Celgard, he spent more than a decade with Alcoa in a wide variety of roles from product engineering & development to global corporate strategy. He then joined the carbon & graphite industry with GrafTech (ex-Union Carbide) responsible for business & market development. Ian’s career has its foundation in the manufacturing of highly engineered materials primarily for transportation and energy applications. He received his BS in Materials Engineering from Drexel University and holds a Master of Business Administration Degree from Carnegie Mellon University.
Adam joined Celgard in 2017 and currently leads the company’s global finance function. Prior to this appointment, Adam served as Financial Reporting Manager and then Corporate Controller for Celgard’s parent company Polypore International, LP. In those roles, he first led the company’s corporate accounting, global consolidation and external reporting to the SEC, and additionally the acquisition and transition accounting and reporting integration following Asahi Kasei’s 2015 acquisition of Polypore. Adam joined Polypore in 2014 after 9 years in public accounting with PricewaterhouseCoopers’ offices in Charlotte, NC, Lausanne, Switzerland, and Chicago, IL where he served large, multi-national manufacturing and consumer products audit clients. He holds a Master of Accounting degree from Kenan-Flagler Business School and a Bachelor of Science in Business Administration degree, both at the University of North Carolina at Chapel Hill.
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