A cardboard box tycoon topped the list.
Ms Rinehart is in the Queensland city to support the Aussie athletes
Most wealthy have interests in agriculture.
FORMER wife of late tycoon Alan Bond slams Channel 9 telemovie.
Gina says Australian politicians could learn from Donald Trump
Scott Morrison says Australians will hold majority interest
Ginia Rinehart has tied the knot with her Nambour sweetheart
REVEALED: Who is the newest member of Gina Rinehart's family?
Ginia Rinehart is set to wed this week on Hamilton Island
Galilee Basin mine tied up in court appeal
Gina Rinehart still on top of rich list
Mary Valley milk powder factory full cream ahead.
Confidential agreement reached over House of Hancock
Gina Rinehart believes in the revitalisation of the dairy industry
BRW rich list shows Clive Palmer just clinging on as billionaire
Impact must be considered before mine's go ahead.
Australian war hero found dead of a cardiac arrest in London
International Coal is developing the Bundaberg Mine
Coal lode is better than Gina Rinehart thought
GVK Hancock to wait until March to learn of Alpha challenge