Korean businessman Koo Bon-Joon has an estimated net worth of $802 million as of April 2013 according to Forbes. He is known to be the grandson ofIn-hwoi Koo, the LG Group creator. Koo Bon-Joon is working for LG for nearly a quarter of a century now. This 61-year old billionaire is a graduate of Seoul National Universityin 1978 using a diploma in computational statistics,and the University of Chicago where he completed his MBA. He is now married with two children. After working for the U.S.-based AT&T, Koo Bon Joon returned to South Korea to take a place at LG where he obtained most of his current net worth. He presently serves as the Vice Chairman of LG, a place he is serving since October 1, 2010. Prior to his current place, he formerly served as chief executive officer and vice chairman of LG International.