Mittal's been based in the UK since 1995, establishing deep roots in London with the purchase of a £67 million Kensington mansion and later gifting his daughter a £70 million home as a wedding present. His influence has extended beyond business: he donated £2 million to Tony Blair’s New Labour, and supplied the steel for the ArcelorMittal Orbit, the striking sculpture created for the 2012 London Olympics.

Despite his loyalty, the super-rich steel magnate is now rethinking his future in London after the government abolished the non-dom tax status. He hasn’t packed his bags just yet, but according to a close associate quoted in the Financial Times, there is a “good chance” Mittal will soon give up his status as a UK tax resident.

Who are the billionaires quitting Britain?