Query: Who was the approved bidder for the airport?
Context: The airport was expected to be completed by 2010. However an approved bidder, the Italian firm Impregilo, was not chosen until 2008, and then the project was put on hold in November 2008, allegedly due to new financial pressures brought on by the Financial crisis of 2007–2010. By January 2009, construction had not commenced and no final contracts had been signed.