Complex sentence: The airline is 100% owned by Globalia, a travel and tourism company managed by Juan Jose Hidalgo, and since September 2007 it has been a member of the SkyTeam alliance.
Split into simpler sentences: The airline is 100% owned by Globalia, a travel and tourism company managed by Juan Jose Hidalgo. Since September 2007 the airline has been a member of the SkyTeam alliance.