Along with Brazil-produced Nokia Lumia 710 being assembled in Argentina, now, Lumia 900 is also being assembled in the factories of Nokia in the countries. The change here is that, earlier Nokia Lumia 900 was being manufactured as well in Argentina is Nokia’s factories. But now, only assembling part is done over there.
This is said to be a strategy to go away from Compal, producer of initial manufacturing. This is done to get Lumias produced, manufactured and assembled quickly to be out for sale as quickly as possible.