Chemistry teacher who founded pharma company now worth $7.9 bn

China's Zhong Huijuan, who quit her job teaching chemistry in middle school to start her drug business, is now worth $7.9 billion, according to Bloomberg. Hansoh Pharmaceutical Group, in which Zhong holds a 68% stake, is set to list with a market value of $10.4 billion. Notably, her husband Sun Piaoyang, who runs another pharmaceutical company, is worth $9.3 billion.