By Mark Kleinman, City Editor
Some of the City's most prominent institutional investors are vowing to oppose any attempt to break up Royal Bank of Scotland (RBS), claiming it would undermine attempts to recover the taxpayer's £45.5bn of rescue funding.
Sky News can reveal that institutions including Royal London Asset Management and Standard Life Investments have begun to express profound concerns about a so-called 'good bank, bad bank' split of RBS.
Their reservations about such a structure emerged on the eve of the publication of a report by a panel of parliamentarians that is expected to recommend an analysis of an RBS break-up.
"I believe the best time to consider splitting RBS has probably passed," said Robert Talbut, chief investment officer of Royal London Asset Management.
A person familiar with the thinking of Standard Life Investments said it was also opposed to a break-up, saying that it would be both counter-productive and potentially destroy value for shareholders.
A number of other big institutions are expected to discuss the issue with Sir Philip Hampton, RBS chairman, in the coming days.
The Parliamentary Commission on Banking Standards (PCBS), which has been examining the industry's culture and ethics, will publish its final report tomorrow.
The institutions' views about a break-up of RBS effectively place them on a collision course with George Osborne, the Chancellor, who is expected to bow to the Commission's demands in his annual Mansion House speech on Wednesday.
Treasury officials said he was likely to signal in his speech that he had commissioned further work on the issue that would explore how to carve out RBS's remaining toxic assets, including large parts of Ulster Bank, its troubled Irish subsidiary.
Mr Osborne is expected to frame the review as facilitating the potential removal of one of the impediments to RBS's reprivatisation.
City institutions oppose the idea on the basis that such a move may have had merit immediately after RBS's bail-out, but that it would now be largely redundant.
External investors now hold roughly 18% of RBS's shares following its rescue in 2008, and would be expected to participate in the multiple phases of share sales by the Government as it seeks to exit its bank investments.
Last week, Stephen Hester, the bank's chief executive, announced that he would leave later this year, a decision triggered by Mr Osborne's desire to have a new leader in place to oversee RBS's eventual reprivatisation.
Mr Osborne is likely to refer to the need to renegotiate the Dividend Access Share, another obstacle to reprivatisation, at Mansion House, insiders said.
The Treasury and RBS declined to comment.