Facebook LIVE event to discuss upcoming changes set for March 3.

Company's profit after tax rises 23% in year.

Chi to CEO as Overheu steps down.

Forecast calls for record harvests of wheat and maize.

Company's joint ventures, investments help expand global footprint.

Sales slide 8% in year.

Event set for June 5-6 in London.

CEO identifies steps taken to improve portfolio.

Agribusiness finishes strong despite a competitive global market environment.

Banna formerly was head of Agricultural Research Center.