11 companies to bid in the tender on 20 April 2012:1- Cengiz ?n?aat 2- MAPA ?n?aat 3- STFA ?n?aat 4- GÜR?Ç ?n?aat 5- POSCO E&C (South Korea) 6- Park Holding 7- Atl? Makina ve ?n?aat 8- Astaldi SPA (Italy) 9- Yap? Merkezi 10 Salini SPA (Italy) 11- Alsim Alarko
Five consortiums are expected to make offers at the tender. These are the following: - Koç Holding, Gozde Grisim Capital, UEM Group (Malaysia), - Limak and Vinci (France), - Alarko, Fiba, Nurol and MV Holding, - Akfen Holding, Autostrade I'Italia (Italy), Thurs-Dogus Holding and Makyol Construction - Cintra, IC and STFA Holding