Operation and maintenance of Thessaloniki Metro in Athens, Greece September 6, 2022 | Europe Tenders, Tenders & Contracts Country: Greece Organisation: Attiko Metro SA Description: Bids are invited for a public-private partnership (PPP) contract for the operation and maintenance of the Thessaloniki Metro in Athens. Clos... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password