Australian dairy giant Murray Goulburn has lost its third director in the aftermath of last week's profit downgrade while its ASX-traded units have almost halved in value.
The co-operative, which competes head-to-head with New Zealand's Fonterra across the Tasman, said Kiera Grant had resigned from the board less than than two months after her appointment.
Chairman Phil Tracy said was "regrettable" that the board had lost an experienced director before she had had an opportunity to contribute.
"However, we completely understand Ms Grant's decision in the circumstances," Tracy said in a statement.
"The board has a lot of work to do to win back the support and confidence of our supplier/shareholders and in the interim is understandably working in a difficult stakeholder environment," he said.