Lebanese flag-carrier Middle East Airlines has firmed an order for five Airbus A321neo and five A320neo twinjets.
MEA had originally committed to the aircraft in July last year.
It has not disclosed a powerplant selection for the jets.
"An aircraft offering fuel burn saving, high reliability as well as a modern and comfortable cabin is a sound investment in anyone's books," says MEA director general Mohamad El Hout.
MEA already operates an all-Airbus fleet which comprises four A330-200s as well as four A321s and 10 A320s.
Its original A320neo commitment included eight options. MEA has not given a delivery date for the aircraft.