On March 9, 2023, the African Development Bank Group announced the exclusion of Ogon-Asu Company Limited and its CEO, William Tuku Ogon for fraudulent and obstructive practices. This sanction, which has taken effect since February 24, 2023, will last for fifteen months.

Ogon-Asu Company Ltd. is a construction company registered in the Federal Republic of Nigeria. Indeed, the Bank's Office of Integrity and Anti-Corruption established through an investigation that Ogon-Asu Company Ltd had engaged in fraudulent practices during a tender for the supply of equipment and the construction of axle load scales/weighing stations along the Enugu-Abakaliki-Mbok Highway (Ogoja Junction) - Ikom-Mfum in Nigeria, a component of the transport facilitation program on the Bamenda-Mamfe-Ekok/Mfum-Abakaliki-Enugu road corridor in Cameroon and Nigeria.

During the 15-month exclusion period, Ogon-Asu Company Ltd., its subsidiaries, and William Tuku Ogon will not be eligible to participate in operations and activities financed by the African Development Bank Group.