Shares in ABN, which had lost almost half their value this year, were up 8.6 per cent at 1050 GMT after it said its corporate bank will retreat to northwest Europe, exiting the US, Asia, Australia and Brazil, except for clearing operations.
ABN will focus on areas where it has significant scale, Mr Swaak said, including local energy markets, where the European Union's "green deal" is expected to fuel huge demand.
French bank Natixis has changed its structure and similarly accelerated a shift to greener finance, while banks including Australia and New Zealand Banking Group (ANZ) and BNP Paribas froze new commodity finance deals following losses.
ABN's restructuring will affect around 45 per cent of client loans and follows several failed attempts to overhaul its corporate bank, which has grappled with losses in offshore energy markets.
"Finally what we wanted", Barclays analysts wrote in a note.
The bank's unwind will be slow and the outlook for the ABN debt, which is worth 18 billion euros (S$29 billion), and the wider market is unclear.
"The big banks that are left cannot fill the gap left by ABN Amro. We can replace some but not all because our exposure is already big and Asian banks are not yet stepping in," a senior banker in natural resources said.
"Banks are not happy with this news. You need the competition and liquidity," the banker added.
Write-offs at ABN's corporate bank hit 1.4 billion euros in the first half, up from 128 million euros a year before, as oil and gas sector loans soured and Asian clients got into trouble.
ABN was lead arranger of a US$430 million syndicated loan for two companies under China's Fangyuan group, which had liquidity problems last year.
It also had nearly US$300 million in outstanding loans to Singapore-based Hin Leong Trading, whose founder admitted to hiding hundreds of millions of dollars in losses.
"This has been the higher risk and more volatile part of the bank, which is why we are choosing to wind it down", chief financial officer Clifford Abrahams told Reuters.
The clearing and European parts which ABN aims to keep were not without their own problems as impairments jumped to 591 million euros in the second quarter.
ABN said impairments led to an overall net loss of five million euros in the second quarter, which was not as bad as analyst expectations of a 46 million euro loss.
Source: Business Times SG