1979, BSc in Mechanical Engineering, Seoul National University. Since 2019, LG Chem Chief Executive Officer. 2017-19, 3M Vice-Chair and Executive Vice-President ,R&D, Supply Chain, Business Transformation/IT, Business Development. 2011-17, 3M Executive Vice-President, International Operations. 2006-11, 3M Executive Vice-President, Industrial & Transportation Business. 2003-06, 3M Division Vice-President, Industrial Adhesives and Tapes Division. 2002-03, 3M Division Vice-President, Electronics Markets Materials Division. 1999-2002, 3M Division Vice-President, Superabrasives and Microfinishing Systems Division. 1997-99, 3M Business Director, Office Supplies Division. 1995-97, 3M Philippines Chief Executive Officer . 1991-95, 3M Korea Business Group Manager, Consumer and Office Markets Group. 1984-91, 3M Korea Technical Service Supervisor, Building Service and Cleaning Products. 1978-84, with Poongsan Corporation.