The IMF has named nine of the world's largest banks as the ones it expects to struggle to be profitable and in need of heightened attention from regulators, reports Marketwatch. In its latest report on global financial market stability the IMF listed Citigroup, Société Générale, UniCredit Group, Deutsche Bank, Barclays, Standard Chartered, Sumitomo Mitsui Financial Group, Mizuho Financial Group and Mitsubishi UFJ as banks with "both thin capital buffers relative to future regulatory requirements and relatively weak profitability to build those buffers over the next few years." Wells Fargo has hired Barclays' head of compliance, Michael Roemer, who will switch from dealing with a whistleblowing scandal at the UK bank to helping the US bank recover from its fake accounts scandal, reports the FT. Roemer starts at Wells Fargo at the end of October. He will be replaced, in the interim, by Barclays' head of global compliance Laura Padovani while a search is undertaken for a permanent replacement. The UK's Financial Conduct Authority and Prudential Regulation Authority have been interviewing Barclays' CEO Jes Staley over alleged attempts to uncover the identity of a whistleblower. Meanwhile, Wells Fargo recently revealed the number of bank accounts opened without customers' knowledge could be much higher than previously thought. HSBC confirmed it had appointed John Flint, head of the bank's retail and wealth management arm, as its new CEO, reports the FT. Flint will take over from retiring CEO Stuart Gulliver after the bank's annual results on February 21 next year. UK banks have been warned that the won't be able to use 'shell companies' based in Europe in order to retain access to the EU single market following Brexit, reports Reuters. The European Banking Authority said that token offices on the continent or in Dublin would not be enough to get a foothold in the EU. The demand for more than "letterbox style operations" could prompt an even bigger shift of jobs and business from London, Reuters says. In a strong sign that upgraded anti-corruption investigations are on the way throughout China's financial services sector, two new executives with reputations as 'graft-busters' have been appointed to top positions with regulators, reports Caixin. Li Xinran is the new head of discipline inspection at the China Banking Regulatory Commission, and Lin Guoyao the new head of discipline inspection at the China Insurance Regulatory Commission (CIRC).