Please answer the following question: Pick one category for the following text. The options are - company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work. HZ series 6112 - HZ series 6112 is a class of low-floor electrical multiple unit on order for Croatian Railways and Railways of the Federation of Bosnia and Herzegovina. Croatian Railways issued international tender for supply of Electric and Diesel Passenger Trains to replace old and obsolete stock. Koncar Group won the tender to supply initially 18 EMU train sets for local Zagreb Commuter Rail network with order of up to 92 trains for the entire Croatian Railway Network to be delivered by 2016.
A:
Mean Of Transportation