Postponed from 12/12/2022 to 16/01/2023 the deadline of the open invitation to tender for the maintenance of stations, tunnels and rolling stock for the Thessaloniki metro, including the extension to Kalamaria. Value of the contract is EUR292 million, excluding VAT. Duration of the contract will be 132 months. Contact Attiko Metro AE, attn Aikaterini Saiti, Athens, tel +30 2106792473, fax +30 2106726126, email ksaiti@ametro.gr. Visit http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=696147-2022. Ref. RFP-427/22. 50/22.