As a physicist in charge of a pollution-control research institution, Lei, 62, was so taken by Tibetan medicine and therapies after a visit to Tibet, she turned her new passion into big business. Listed on the Shenzhen Stock Exchange in 2009, Cheezheng produces pain-relief patches and cream. Although rooted in ancient therapies, its products are developed using modern technology and accredited manufacturing processes.
Company:Cheezheng Tibetan Medicine
Net worth:US$1.9 billion