10. Iris Fontbona – $13.9B:
Fontbona is a 74 years-old widow who lives in Chile. Her late husband, Andrónico Luksic, who died in 2005 from cancer, had created his wealth in mining and beverages. Fontbona, with her two children, are the controllers of Antofagasta Plc, a London Stock Exchange company. They also own several copper mining plants in Chile.
These, together with other stakes in some other companies, plus their side businesses, net up to $13.9B. This is as per June 30th, 2017. Fontbona gave a donation of $4.3M to the annual Chilean Telethon in 2015. The donation is for the children with physical disabilities. Currently, Iris Fontbona is 74 and lives in Chile.