Lee Jay-yong, vice chairman of Samsung Electronics, became the richest third-generation business tycoon in South Korea in terms of stock value, thanks to the initial public offering of Samsung SDS last Friday. The Samsung heir apparent Lee's equities were valued at almost 3.9 trillion won after taking his 11.25 per cent ownership in Samsung SDS into account, according to Chaebul.com, an online information provider of Korea's family-run conglomerates.