"Thyssenkrupp will hold an interest in the joint venture for at least six years. At the same time a change to the shareholder structure, possibly as the result of an IPO, is not ruled out during this period," the group said on Thursday.
The comments were made as part of an collective agreement with unions, a key condition for the planned joint venture to go ahead next year.
(Reporting by Christoph Steitz. Editing by Jane Merriman)