The long-standing chair of Westland Milk Products has announced he will stand down and retire from the board at the end of March next year.
Matt O'Regan has been the chair for the last seven years.
He said he will stay on until March to give Westland continuity of governance, while new chief executive Toni Brendish established herself in the role, and to allow the board time to identify and plan its future governance needs.
Mr O'Regan said by then the new chief executive would have a very clear picture of the company and any major changes she needed to implement to strengthen and grow Westland's commercial success.
He said this will be the best time for her and a new chair to begin working together.