[1] When Mathieu Kérékou returned to the Presidency in 1996, Fassassi became Minister of Public Works and Transport, serving in that position until 1998.
[1][2] In May 2001 he was appointed Minister of Mines, Energy and Hydraulics,[1][2][4] serving until April 2006,[4] when Yayi Boni became president.
[5] In Copargo in January 2006, he announced that he would be the PRD-Nouvelle Génération's candidate in the March 2006 presidential election, saying that he wanted to defend Kérékou's legacy.
[2] In the election, which Boni won, Fassassi took ninth place with 0.98% of the vote.
He died on December 4, 2016, at CNHU (national university hospital center).