Fatima Dangote, his youngest child, will assume a commercial leadership role at the energy business, which includes the giant Lagos refinery, while continuing to oversee Dangote Group’s corporate communications and administration. Halima Dangote, the middle daughter, who runs the family office in Dubai, will expand her remit to include its London operations and support the company’s international activities. Mariya Dangote, appointed to the board of the cement unit when her father retired in July, will lead commercial strategy for that business as well as the group’s  food operations across all markets.