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Chang Hee SOHN is an experienced professional in the field of polymeric materials for automotive applications, currently serving as the Head of Technology Center in China at GS Caltex Corporation since February 2016. Prior roles include Manager at GS Caltex Corporation, focusing on global OEM markets, and Principal Research Engineer at Hyundai MOBIS, where significant contributions were made in developing high-performance engineering plastics and polymer composites. Earlier experience as a Research Engineer at Kolon Industries involved developing materials for both automotive and electronic industries. Chang Hee SOHN holds a Doctor of Philosophy (PhD) in Chemical Engineering from Sogang University.