CEO
Anglo American
Country: BritainAnglo American
2006 rank: New
Hired in March to carry on the restructuring of the world's largest mining company (2006 revenue: $33 billion), Carroll is making changes of her own. So far the 50-year-old American geologist has bought stakes in an iron-ore mine in Brazil and two copper projects, in Peru and Alaska. She's also encouraging innovation and setting high safety targets.