June 7 (Reuters) - GrainCorp GNC.AX , Australia's biggest listed bulk grain handler, said on Friday it has signed a 10-year deal with a unit of Aon (NYSE:AON) PLC AON.N to reduce cash flow volatility linked to eastern Australian grain production, especially during droughts.
The deal will take effect from the 2019-20 financial year, and excluding certain production payments is likely to cost Graincorp less than A$10 million ($7.0 million) pre-tax per year.
($1 = 1.4333 Australian dollars)