Wedded together - or perhaps welded .... no more.
Thyssenkrupp and Tata's ambition to combine their steelmaking units into a joint venture is a plan European regulators have confirmed they don't like.
"The Commission has blocked the merger to prevent higher prices and less choice for steel customers."
Only, the news isn't really news to the two companies themselves.
Both warned last month they were unwilling to make further concessions to address regulators' concerns.
Tata said it would explore all options for its European business - including finding a new partner and selling assets.
Thyssen CEO Guido Kerkhoff told Reuters it was dropping plans to split the conglomerate into different units - in favour of listing its lucrative elevators division.
Thousands of workers protested at possible job losses when the Tata merger plan was revealed in 2017 ...
But its new restructuring scheme means 6,000 jobs - around 4 per cent of the workforce - will go anyway - around a third in the steel division.
For the European Union, the concern is competition.
Commissioner Vestager's has vetoed three merger plans this year - including a block on Siemens' bid for Alstom.
"The best way to promote competitiveness, the whole system, is to make sure that all European companies -- whether they are making steel or using steel, whether they are big or they're small -- are having a fair chance to compete and to grow on their merit."
Tata's shares were up on the announcement - as were Thyssenkrupp's.
Its elevators business is its most profitable unit, worth an estimated 14 billion dollars - twice the parent group's market value.
It may also consider new ownership structures for its car parts, plant engineering and marine systems units.