Fonterra is seeking views from its farmers on the co-operative's capital structure review.
It contacted farmers on Tuesday with a survey to complete, saying it wanted to hear their views on the capital structure, changes they might like to see and the principles the board should consider throughout the review.
In an email, chairman Peter McBride said the past few months had been spent reviewing potential options, including staying with the current structure.
Every option had its own merits but also involved "some form of trade-off".
The feedback from farmers would be considered as part of the board's decision-making process as it moved towards a preferred option. If change was recommended, it was likely to include a shareholder vote.