A new unit ( Unit IV ) is under construction .
A new unit ( Unit IV ) was scheduled to open in August 2013 , but the new unit was opened on 1 July 2014 and renamed as Terminal 1A .
A new unit ( Unit IV ) is under construction and was scheduled to open in August 2013 , but the new unit was opened on 1 July 2014 and renamed as Terminal 1A .