Net worth: $26.5 billion

Age: 46

Country: China

Industry: Transportation

Source of wealth: Self-made; S.F. Holding

Wang Wei founded China's largest package-delivery company by revenue, S.F. Express. It recently debuted on the stock exchange, catapulting Wang onto the world's richest list for the first time. Over the past year, his fortune has swelled by nearly $22.7 billion.

The son of a Russian interpreter for the People's Liberation Army Air Force, Wang grew up in Hong Kong and later returned to his birthplace in China in the 1990s to launch his delivery service, according to Bloomberg. At the time, his business was considered part of the "black delivery" market and he risked being caught and fined by the country's postal officers. The company had $7.4 billion in sales in 2015, outpacing its domestic competition, and now operates in more than 50 countries with a fleet of 15,000 vehicles and 36 aircraft.