Australia's largest wheat exporter, AWB, is in talks with ABB Grain about a possible merger.
The combined companies would have a market value of $A2 .2 billion.
Shares in ABB rose 17.41% on the Australian stock market on Friday, or $A1.13, to $A7.62. Shares in AWB stock rose 5.33%, or 17c, to $A3.36.
