Announcement of an Open Electronic Tender Above Thresholds for the Provision of Static Security Services at ERT S.A. Facilities in Thessaloniki for a Period of Two (2) Years with an Option to Extend for One (1) Year

ΕΛΛΗΝΙΚΗ ΡΑΔΙΟΦΩΝΙΑ ΤΗΛΕΟΡΑΣΗ Α.Ε. (Ε.Ρ.Τ. Α.Ε.)