[1] Mamalepot was born at Mbabiri in the Haut-Ogooué Province of Gabon;[2] he was a member of the Kota ethnic group.
He was educated in France and joined the Bank of the States of Equatorial Africa and Cameroon in 1968.
[1][2] The Conference of the Heads of State of the Economic and Monetary Community of Central Africa (CEMAC) decided to replace Mamalepot as BEAC Governor in April 2007.
[4] Subsequently, Mamalepot was elected for a three-year term as President of the Council of Administration of the National Health Insurance and Social Security Fund (Caisse nationale d'assurance maladie et de garantie sociale) on 26 November 2008.
[5] He was hospitalized in Paris at the Hôpital Cochin in November 2012, and he died at his home in Libreville on 12 December 2012.