https://phys.org/news/2018-07-thyssenkrupp-ceo-resigns-tata-merger.html

"I am taking this decision to allow a wide-ranging discussion within the advisory council on the future of Thyssenkrupp," a statement quoted Hiesinger as saying while the firm gave no further information on his reasons for going.

Last Friday, Thyssenkrupp said it had agreed to merge its steelmaking business with Tata as a response to a flood of cheap Chinese steel unbalancing world markets.