American businessman Hoang Kieu has an estimated net worth of $4.2 billion as of August 2015, according to Forbes. Born in Trieu Phong, Quang Trị Province, Vietnam. Hoang Kieu is the current Chairman of Shanghai’s RAAS Blood Products, a blood plasma company that is listed on the Shenzhen stock exchange. Prior to his big role in the pharmaceutical firm that he has 37% stake (totaling in $183.6 million dollars in cash), Hoang Kieu joined Abbott as part of their employee in 1975, several months after he relocated to America. In 1980, he was promoted to become the director of the plasma testing and manufacturing division. For overthan 14 years, he helped establish 11 plasma quarters in the United State. In 1987 he founded his own pharmaceutical firm, Shanghai RAAS. He is also the owner of wine store Kieu Hoang Winery which is situated in Napa Valley California. Kieu first appeared on Forbes list in 2014 and was ranked the World’s 847th richest person in the world and America’s 297th. Asides from his major businesses, Hoang Kieu also has interests in hotels, wine, and real estate. He currently resides in Los Angeles, California.