On 1 September 1981, André Kolingba appointed Marboua as minister of economy and finances.[2] However, Marboua and Kolibga's relationship deteriorated at the end of 1981 due to Marboua's closeness to Patasse. Several days before the coup attempt, on 17 February 1982, there was a plan to arrest Marboua for his pro-Patasse stance. He then was dismissed from the ministerial post on 4 March 1982 and moved to France.[4][3] Returning from France, he then served as the deputy minister of budget from 8 December 1986 until 3 December 1987. Subsequently, he became the minister of trade and industry on 3 December 1987 and served it for almost four years. Afterward, he was assigned as the minister of the government's secretariat and relations with the parliament on 20 March 1991.[2]
During Bozize's administration, he worked as Minister of Delegate for Finance and Budget (12 December 2003 - 2 September 2004), Minister Delegate for Planning, Economy, and Finance (2 September 2004 - 19 June 2005), and Minister of Tourism Development and Handicrafts (31 January 2006 - 2 September 2006).[2] After resigning from the tourism ministry, he became the general state inspector.[5]
Marboua converted to Islam in unknown year and replaced his name to Mohamed Mahdi Marboua. He also went hajj and became the member of Central African Islamic Community (CICA) where he was elected as the organization's president in 1998.[2]
Bradshaw, Richard; Rius, Juan Fandos (2016). Historical Dictionary of the Central African Republic (Historical Dictionaries of Africa). Lanham: Rowman & Littlefield.