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Rinehart is another highly productive billionaire who has been recently affected by commodity prices . Rinehart ’ s business is iron ore and low prices have hurt her net worth . Despite this , she was the richest person in her native land of Australia for five straight years , having just been toppled from that position by Harry Triguboff , the continent ’ s largest property developer . Rinehart maintains her wealth ($ 15bn ) through a joint venture with Hope Downs , Rio Tinto and the Roy Hill Project . She remains the largest miner in Australia , just edging Andrew Forrest of Fortescue .

Beverage and mining make Fontbana ( net worth $ 15.3bn ) and her sons the richest family in Chile . Iris is the widow of Andronico Luksic , who founded the Luksic Group in the 1950s ( he died of cancer in 2005 ). Their Santiagobased mining company Antofagasta primarily mines copper , although the family has expanded into agriculture , manufacturing , transportation and metals . Antofagasta also owns many Chilean copper mines and has a majority stake in Quineco , which is one of the biggest conglomerate companies in Chile .

30 September 2017