10 Youngest Billionaires Around The World

Scott Duncan

Age: 29

Net worth: Around $4 billion 

Scott Duncan, the only billionaire in his 20s who didn't strike it rich with Facebook. He and his siblings assumed control of the family's $12.4 billion pipeline empire after their father Dan Duncan's death last March. Scott Duncan is one of four children of the late energy pipeline entrepreneur Dan Duncan, the former richest man in Houston, who died in 2010 at age 77. Scott added $1 billion to his fortune in the last year as the company Enterprise Products share price climbed by one-fourth.

Yang Huiyan

Age: 30

Net worth: Around $4.7 billion 

Yang Huiyan is the majority shareholder of Country Garden Holdings and one of the wealthiest people in Mainland China, with an estimated net worth of $7.4 billion as of March 2009. She is the daughter of Yang Guoqiang, who started his company Biguiyuan in 1997  and transferred 70 percent  of Country Garden's shares to her before its IPO in 2007. The wealthiest mainland Chinese in the previous year, 2006, was Huang Guangyu. Country Garden's initial offering raised about $1.6 billion, or as much as Google raised in 2004 in the United States. Yang's net worth was estimated at $16.2 billion in October 2007. Yang is a 2003 graduate of The Ohio State University.