Investor
The Coal Trunk-Line was constructed by order of the Polish Government by a private company, the French-Polish Rail Association (FPTK - Francusko-Polskie Towarzystwo Kolejowe). This company maintained the route Herby Nowe - Gdynia from April 24, 1931 until September 1, 1939. During that time, the line was not under the authority of the Polish State Railways (PKP), the FPTK directed it from its headquarters in Bydgoszcz. After the war, the whole line was nationalized.
Read more about this topic: Polish Coal Trunk-Line