Asiana Airlines operates a sales office on the second floor of the Nihonseimei Koriyama Nakamachi Building in Kōriyama.
The sets were rebuilt from surplus former 581/583 series EMU cars at JNR factories in Tsuchisaki (Akita), Kōriyama (Fukushima), Mattō (Ishikawa), and Kokura (Kitakyūshū).