Ballance Agri-Nutrients chief executive Mark Wynne has resigned after nine years in the role.
His last day will be in late September.
The fertiliser co-operative’s chair, Duncan Coull, said it had been an “absolute pleasure” working with Wynne, who has been an “incredibly effective” leader.
Wynne said it has been an amazing and incredibly rewarding experience to lead such a diverse business and dedicated team.