In the same statement, Fonterra said independent director, Simon Israel, had decided to step down from the Fonterra board at its next annual meeting after six years.
Fonterra said Israel's decision was in support of planned succession and the need to phase the refresh of the co-operative's independent directors.
Israel was appointed in 2013 and is currently a member of Fonterra's appointments and remuneration committee.
Singapore-based Israel is also chairman of Singapore Telecommunications and chairman of Singapore Post.
Fonterra said succession planning had been discussed at board level.
"Those conversations include professional development, diversity, level of connection back to the farm, skills and experience on the Board, and the appropriate length of term for all independent and Farmer directors – including the chairman," it said.
Fonterra said those conversations were "well progressed in all aspects".
A replacement for Israel would be brought onto the board "at an appropriate time" and farmer-owners would have the opportunity to ratify that appointment at the 2020 annual meeting.
Fonterra is due to report its annual result on Thursday, having deferred the announcement, which was to have been made last week.
In August 2019, Fonterra announced a number of asset writedowns and one-off accounting adjustments.
The co-op expect to report a loss of $590-$675 million for the year, representing a loss of 37 to 42 cent loss per share.