Citigroup's business in Asia-Pacific, the bank's fastest-growing region, faces a period of uncertainty following the resignation of its top executive after just 15 months in the post.
Ajay Banga shocked colleagues by announcing on Friday evening in New York he is to join MasterCard as president and chief operating officer. He is in line to become chief executive of the credit card company next year.
Mr Banga is a close confidant of Vikram Pandit, Citi chief executive, and was head of the bank's Asia-Pacific operations – which contributed 30 per cent of group revenues in 2008.
您已閱讀30%（580字），剩餘70%（1379字）包含更多重要資訊，訂閱以繼續探索完整內容，並享受更多專屬服務。