FRANKFURT (Reuters) - German steelmaker ThyssenKrupp
Germany's federal cartel office last year fined four companies - ThyssenKrupp, two units of Voestalpine
Deutsche Bahn then filed a 550 million euro claim for damages against a number of track suppliers including ThyssenKrupp. Voestalpine, which blew the whistle on the cartel, was not among those sued.
ThyssenKrupp and Deutsche Bahn declined to comment.
Germany's biggest steelmaker will report fiscal fourth-quarter results on Thursday.
($1 = 0.7394 euros)
(Reporting by Matthias Inverardi; writing by Harro ten Wolde; editing by Tom Pfeiffer)