Economy Alleged Corruption: Buhari Sacks NPA Boss, Hadiza Bala admin - May 7, 2021 0 …Appoints Koko as her Replacement President Muhammadu Buhari has suspended Hadiza Bala Usman as the Managing Director of the Nigerian Ports Authority. Ms Usman was replaced by Mohammed Koko, the Director of Finance. In her response, Hadiza Bala Usman said she was aware of her suspension from office, but has yet to receive any formal communication to that effect from the Ministry of Transport. A spokesperson for the ministry did not immediately return a request seeking comments. Ms Usman was appointed as NPA chief in 2016 and has repeatedly propagated her reform policies that sought to redirect the organisation, which is one of the top revenue-generating entities of the Nigerian government. There are several allegations of abuse of office and corrupt enrichment against the embattled, suspended former MD of the NPA.