Electronic Open Competition, In Euro, With The Criterion Of Awarding The Most Economically Advantageous Bid, For The Selection Of A Contractor To Undertake The "Provision Of Maintenance And Technical Support Services, To Meet The Operational Needs Of The Ministry Of Foreign Affairs. Within Attica Region, For A Period From 01.01.2026 To 31.12.2027 Or From The Date Of The Contract In Force Of The Contract Until 31.12.2027, With The Option Of The Contract For One (1) Additional Year (2028) »