Acting President Osinbajo meets Amine Mati, IMF Representative Posted on August 16, 2017 Acting President Yemi Osinbajo, SAN with Amine Mati, Senior Resident Representative and Mission Chief for Nigeria, International Monetary Fund (IMF), during a meeting at the State House in Abuja. 15th August 2017. Photos: NOVO ISIORO. Acting President Yemi Osinbajo, with Amine Mati, Senior Resident Representative and Mission Chief for Nigeria, International Monetary Fund (IMF); flanked by Amb. Yemi Dipeolu, Special Adviser on Economy during a meeting at the State House in Abuja. 15th August 2017. Photos: NOVO ISIORO.