Thyssenkrupp Tata Steel JV

The complaint to the General Court of the European Union - seen as a symbolic move - comes after the Commission in June vetoed plans to create Europe's second-biggest steelmaker

Tata Steel and ThyssenKrupp have proposed combining their steel operations in Europe to form the region's second-biggest steelmaker

The two are major integrated producers of flat carbon steel and electrical steel, with significant production facilities in the European Economic Area (EEA), in particular in Germany, the Netherlands

It wasn't immediately clear whether the departures of Heinrich Hiesinger and Ulrich Lehner would open the way for more radical steps on strategy

Half of the 20 seats on Thyssenkrupp's board are held by labour representatives

To appease workers a group of board members and labour representatives was set up shortly after the announcement

The JV is seen as a last ditch attempt by Thyssenkrupp chief executive Heinrich Hiesinger to build a sustainable steel business in Europe

Thyssenkrupp's supervisory board will meet on Sept. 24 to discuss the planned joint venture

Thyssenkrupp CEO Heinrich Hiesinger is interested in a tie-up with Tata Steel