Serigne Dioum: Powering a $500 Billion Fintech Engine at the Heart of Africa’s Digital Economy Serigne Dioum, Chief Executive Officer, MTN Group Fintech Full size is 966 × 789 pixelsMarch 18, 2026March 18, 2026 Image navigation jad20250311-eco-grand-portrait-telecoms-mtn-fintech-serignedioum