Hajj Hassan was born into a Shia family in Nabi Chit in the Beqaa Valley in 1960.

[6] In June 2009, he met with the then European Union foreign policy chief Javier Solana in Beirut, representing Hezbollah.

[8] In January 2011, he and other two ministers, Gebran Bassil and Mohamad Jawad Khalifeh, resigned from the cabinet, leading to the collapse of Hariri government.

[10] As minister he signed a cooperative agreement with Jihad al-Binaa, in order to provide agricultural vocation.

This move was criticized as allowing Hezbollah to take credit through Jihad al-Binaa of government provided projects.