Early Market Engagement Notice: Baku Metro Expansion Project - Phase II (Green Line)

INTERNAL. This information is accessible to ADB Management and Staff. It may be shared outside ADB with appropriate permission. NOTICE OF INVITATION TO PARTICIPATE IN EARLY MARKET ENGAGEMENT Baku Metro Expansion Project (BMEP) — Phase II Green Line Extension (AIIB) | Purple Line Extension (ADB)

Employer: Baku Metropolitan Closed Joint-Stock Company (Baku

Metropolitan)

Financing Partners: Asian Infrastructure Investment Bank (AIIB) — Green Line

Extension Asian Development Bank (ADB) — Purple Line Extension

Date of Event: April 30, 2026, at 10:00 (Baku Time, UTC+4)

Format: Virtual Webinar (Microsoft Teams) — link to be provided upon

registration

1. Background

Baku Metropolitan Closed Joint -Stock Company (Baku Metro politan), with the support of the Government of the Republic of Azerbaijan, is implementing the Baku Metro Expansion Project (BMEP) — Phase II. This is one of the most significant urban transport investments in the Caucasus region, with a total estimated project value of approximately USD 1.6 billion, financed by AIIB and ADB in parallel. Phase II involves the construction of two new metro lines in Baku, utilizing deep -level Tunnel Boring Machine (TBM) tunnelling through a dense urban environment:

• Green Line Extension (AIIB): The Green Line Extension (7.0 km, 4 underground stations:

Y-14 to Y-17), to be financed by AIIB — extending metro connectivity to the northwest and central corridors of Baku.

• Purple Line Extension (ADB): The Purple Line Extension (8.2 km, 5 underground stations:

B-5 to B-8), to be financed by ADB — extending metro connectivity along the east–west corridor, connecting major commercial and residential districts. For prospective bidders, it is important to note the following legacy condition on the Green Line: two TBMs from a prior construction attempt are currently located underground. . Additionally, excavation and construction of two of the stations on the Green Line had started and stopped in 2014, leaving the two stations partly constructed. Furthermore, tunnelling works on the Green Line would potentially come in contact with contaminated soil and ground water. It is also to be noted that the construction INTERNAL. This information is accessible to ADB Management and Staff. It may be shared outside ADB with appropriate permission. of two metro lines will exclude signalling and telecommunication systems, which are planned to be implemented under a different project. …

Member: Azerbaijan

Sector: Transport

Notice type: Early Market Engagement Notice

Issue date: April 9, 2026