SAO PAULO, June 7 (Reuters) - Supermarket chain Carrefour Brasil said on Tuesday that it has approved calling a shareholders meeting to elect new board members and update governance standards as key shareholders signed a new shareholder agreement.

If the proposed changes are approved, Alexandre Bompard will become the chairman of Carrefour Brasil's board and Abilio Diniz will be the vice chairman, it said in a securities filing. (Reporting by Gabriel Araujo, Editing by Louise Heavens)