The approximate cost of the tender was determined as 22.486.460,90 TL with a bid of 17.495.625 TL. kazanAn Yapıray İnşaat firm was invited for the contract on 23 December 2011.
Other companies participating in the tender are: 1. Assignia - Demir Yapı, 2. CLF - Kolin İnşaat, 3. Çelikler Contracting, 4. Emre Ray Energy, 5. Fermak İnşaat, 6. Gülsan - Rover İnşaat, 7. GCF, 8. Strabag Rail AG, 9. Uzka Construction