 Pakistan also has taken major steps to becoming self-sufficient in aircraft overhaul, modernization and tank and helicopter sales and a transfer of technology with France led to the construction of the Agosta B-90 Submarine in the late 1990s and early 2000s and is currently participating in many joint production projects such as Al Khalid 2, advance trainer aircraft, combat aircraft, navy ships and submarines.In 2016 the pakistani government managed to reduce its defence imports by 90%.Several of the defence establishments listed below while primarily involved in research and development also produces and supplies defence equipment and military systems.