1. Construction of B' Operational phase of Thriasio complex and Zefiri Raiway Station (Contract No. 541) (TSI INF 1299/2014, TSI ENE 1301/2014, TSI CCS 919/2016, TSI PRM 1300/2014, TSI SRT 1303/2014).

2. Construction of the infrastructure of the new double railway line in the section from 73+135 up to C.H. 79+750(80+493 N.H.S.R.L.), railway stations and halts (buildings, platforms, shelters and surrounding area) and Ε/Μ road works in the section Kiato – Rododafni. (Contract No. 512) (TSI INF 1299/2014, TSI PRM 1300/2014, TSI SRT 1303/2014).

3. Construction and operation of the temporary electrification line and one electrification of tele – command center of the section from the North entrance of Athens Railway Station (CH. 10+931) up to Treis Gefyres (CH. 13+133). (Contract No. 700/1) (TSI ENE 1301/2014).

4. Construction of the superstructure of the deviation of Thessaloniki-Eidomeni line in the section Polykastro-Eidomeni from km 53+000 to km 73+000, superstructure of R.R. Polykastro, electrification, telecommand of electrification in the new deviation and fencing of the line (Contract No. 563) (TSI INF 1299/2014, TSI ENE 1301/2014).

5. Construction of the infrastructure of the new double railway line from CH. 113+000 – 123+500 at the section Psathopyrgos – Rio area (Contract No. 716) (TSI INF 1299/2014, TSI SRT 1303/2014).

6. Construction of the new double railway line of the section Rododafni – Psathopyrgos from CH. 91+500 to CH. 113+000 and Panagopoula tunnel (Contract No. 579) (TSI INF 1299/2014, TSI SRT 1303/2014).

7. Elaboration of the designs for upgrading the infrastructure of Railway Line, section Thessaloniki – Promachonas for the installation of electrification(C.N. 3000).

8. Works for gauge arrangement and other track and turnout maintenance works within the jurisdiction area of the maintenance section of Athens line. (C.N. 1607).

9. Designs for Renewal and Upgrading of the existing Double Railway Line between S.K.A exit(CH. 19+700) and Oinoi R.S. exit(CH. 71+400), Reconstruction of Agios Stefanos bridge in Attica (CH. 35+500 to CH. 35+700) and Construction of an Underpass at the existing Aliartos R.S. (CH. 119+300) (C.N. 738).

10. Alignment designs of the new railway line Thessaloniki – Amfipoli – Nea Karvali (First Ddesign phase A) (C.N. 192)

11. Replacement of elastic rail pads in precast monoblock sleepers from R.S. Peiraia to R.S. Davlia in the area of responsibility of the maintenance department of Athens» (C.N. 1608)

12. Design of the railway line located from the Motor Oil facilities in Korinthos to the R.S. Isthmosu-Korinthosu.

13. Completion of the upgrading of the double electrified railway line at the section R.S. Peiraias – exit of R.S. Athens», (C. N. 751)

14. Construction of the quadruple railway corridor at the section ‘exit of R.S. Athens – Treis Gefyres’ with underground construction at Sepolia area (C.N. 2507)