Zemun Polje – Nikola Tesla Airport – National Stadium railway

New double-track electrified line, 18.3 km (MGSI gives 7.1 km Zemun Polje–Singidunum, 3.7 km to the airport, 3.1 km to Surčin and 3.8 km to the National Stadium). The minister toured the site with workers on 2 May 2025 (MGSI), so construction had started by May 2025; Novosti reported the start on 14 June 2025. The month is recorded as the latest possible start. MGSI states a total contract value of EUR 188.1 million; the contract date and price year are not given, VAT treatment is not stated, and the figure is not recorded as an award revision. The contract was agreed directly under the Serbia–China agreement on economic and technical cooperation in infrastructure. The expected opening is the contracted works deadline of end 2026 stated by the minister, not a passenger opening date; delivery of nine new electric trains was expected from November to March. MGSI counts seven structures on the line (three bridges, two underpasses, two overpasses) while another ministry report counts six (four bridges, a viaduct and an overpass). Geometry is the OpenStreetMap railway=construction ways of one track, 17.9 km as drawn against 18.3 km recorded. The recorded length is the sourced figure.