China's richest man Jack Ma to retire from Alibaba at 54
China's richest man and Alibaba's Co-founder, 53-year-old Jack Ma will step down from the post of Executive Chairman on September 10 to pursue philanthropy in education, The New York Times reported. Ma, a former English teacher who co-founded Alibaba in 1999, has a fortune of about $40 billion. He turns 54 on September 10, a Chinese holiday for Teachers' Day.