Fonterra said it would decide on a succession plan for chairmanship of the co-operative next year.
The current chairman, John Monaghan, is due to retire as a director at the 2020 annual meeting.
"Having seen through the introduction of our new strategy, operating model, and with our divestment and debt reduction efforts well progressed, I will be working with the board in 2020 to facilitate chair succession," Monaghan said in a statement.
"The timeline for that succession will be agreed by the board nearer to the time," he said.
Monaghan was elected to the board in 2008 and became chairman last year, replacing the late John Wilson.