 Other sectors now benefit from the free trade agreement, and the share of exports from non-border states has increased in the last 5 years while the share of exports from maquiladora-border states has decreased.Currently Mexico is focusing in developing an aerospace industry and the assembly of helicopter and regional jet aircraft fuselages is taking place.Foreign firms such as MD Helicopters, Bell, Cessna and Bombardier build helicopter, aircraft and regional jets fuselages in Mexico.