Trainkos is a private railway company based in Kosovo that also serves as the national rail carrier of the country.

For years, there have been plans to extend the branch to Prizren across the border to Albania, to create a link to the network of the Albanian Railways.

Particular attention is being paid to the mainline route between Hani i Elezit and Leshak which constitutes part of Pan-European Corridor X and is the backbone of the TrainKos network.

[3] Work on two collapsed tunnels was completed in November 2023 enabling trains to travel again between Hani i Elezit and Fushë Kosovë connecting Prishtina directly to Skopje and Thessaloniki, on the 10th corridor.

[3] The works include improvements to 32 level crossings, 18 km of road, and refurbishment of the stations in Fushë Kosovë, Mitrovicë, Vushtri, Druar, Prelluzhe and Obiliq-Kastriota.

Alongside construction work on the Mitrovicë-Leshak section, the third phase of modernisation also includes improvement of signalling, telecommunication, and electrification.

Until March 2008 there were two more Freedom of Movement train pairs from Fushë Kosovë to Leshak, but this traffic had to be discontinued until further notice due to ongoing tensions with Serbia.

International freight traffic is handled via Hani i Elezit, and the container terminal is close to Pristina airport, near the Miradi station.

This leads to the situation that, for instance, fuel is transported into Kosovo territory, without toll being paid to the Kosovarian state.

On January 13, 2017 ŽS announced that North Mitrovica – Kraljevo line will be extended to run as an express train directly to Belgrade.

The rolling stock partly stems from the former Yugoslav Railways, and was partly imported from various European countries, such as via the Kosovo Train for Life charter train that arrived in Pristina on 7 September 1999 bringing aid and rolling stock from the United Kingdom and Germany in connection with the Kosovo Force peace-keeping efforts.

At the moment, all locomotive hauled passenger trains use former SJ coaches and, in the case of the InterCity, one carriage of Makedonski Železnici.