eli5 What happenes if EU or UK regulators block MS x ABK merge?

Question

I mean countries like Brazil, Chile or Saudi Arabia approved the deal, what happenes to their decisions?

In: 1

Answer 1

They have to get approval from every country they operate in. If they don’t get approval, they can’t operate in that country. So either they remove all operations from the UK and/or EU, or they don’t merge.