The main source was mines near Kryvyi Rih (then in the USSR, now in Ukraine), from where it was transported by rail via Medyka, Przemyśl, and Tarnów to Jaworzno Szczakowa.

The latter was chosen, the advantages cited were that the newly-designed line could be built to accommodate the heaviest trains allowed to run on broad gauge network, there would be no need for an unfreezing facility at the border (in winters ore arrived frozen solid, presenting a challenge at the transshipment facility) and PKP needed not to use its own wagons to transport the goods on the Polish network as the Soviet wagons would be used for the entire transport.

[4] Various schemes are being tried to increase its profitability, such as offering transport and forwarding services to all interested customers, leasing of commercial space and some rolling stock maintenance.

[8] On 5 January 2020 the first intermodal container train from China used the line to reach the Sławków terminal, after traveling the 9,477 km (5,889 mi) route from Xi'an via Kazakhstan, Russia and Ukraine over 12 days.

[9] The company operating the line hopes that regular connections with China are established, taking advantage of the fact that its wide-gauge permits quick crossing of the border between Poland and Ukraine.

The company is in the process of installing warning lights (and, in some cases, barriers) at level crossings, extending the Hrubieszów LHS station and upgrading the train control systems.

[10][11] Since 28 February 2022, special passenger trains carrying refugees from Ukraine, during their highest influx following the Russian invasion on their country, were run on the line to Olkusz, where a tent town has been established to accommodate them before they continue travel by standard gauge rail or by road.

There are two sidings: one at Sławków LHS to the iron ore unloading facility, owned and operated by Katowice Steelworks, and another, unused since 1994, at Grzybów to the Siarkopol sulfur mine.