about 25% The billionaire's roughly 4,000 employees across her private company's mining, energy and agricultural divisions were all in with a chance of winning the 'life-changing' sums of money at the firm's black-tie events. A Hancock Prospecting insider told the Sydney Morning Herald in 2014 that Mrs Rinehart often looked forward to seeing 'her girls' and had twice flown them to Kuala Lumpur so they could see her receiving international awards. Hancock Prospecting, Ms Rinehart's mining company, says on its website that the charity aims to 'break cycles of poverty and abuse and create positive change in Cambodia through intervention and education for the youth'.