Complex sentence: The airport is operated by the Department of Mobility and Public Works of the Flemish Government which made an agreement with the French engineering group Egis Group to operate it starting 2014 for a duration of 25 years.
Split into simpler sentences: The airport is operated by the Department of Mobility and Public Works of the Flemish government. The Flemish Government made an agreement with Egis Group to operate it starting 2014 for a duration of 25 years.