The Object Of The Contract Is The "Supply And Placement Of The Metal Highlighting Structures In The Atriums Of The Church Of Agia Sophia", As Provided For In The Relevant Approved Studies, The "Update Of The Architectural Study Of Highlighting The Atriums" And The "Study Of The Interaction Of The New Highlighting Structures With The Structural Elements Of The Monument Of Agia Sophia, Thessaloniki" (Prot. No. Yppo/406992/18-12-2025, Ada: 9T8346Nkot-6Bg Approval Decision).