* Chairman Antonio Horta-Osorio apologises for personal actions
* Quits within one year after taking charge
* Bank appoints former UBS executive Axel Lehmann as chairman
* Lehmann says bank's strategy is not under discussion
* Credit Suisse announced big revamp in November (Adds details and background, updates share price)
By Anshuman Daga and Oliver Hirt
SINGAPORE/ZURICH, Jan 17 (Reuters) - Credit Suisse will stick to its strategic overhaul despite the abrupt departure of its mastermind Antonio Horta-Osorio following an internal probe into his personal conduct, including breaches of COVID-19 rules, the embattled bank's new chairman said on Monday.
Horta-Osorio leaves less than a year after he was hired to help the bank deal with the implosion https://www.reuters.com/business/finance/spies-lies-losses-credit-suisses-scandals-2021-11-04 of collapsed investment firm Archegos and the insolvency of British supply chain finance company Greensill Capital, even as it was still reeling from the 2020 exit of CEO Tidjane Thiam over a spying scandal https://www.reuters.com/article/us-credit-suisse-spying-ceo-idUSKBN2010L3.
Combined these triggered multi-billion dollar losses and sackings at Switzerland's No. 2 bank, and Horta-Osorio unveiled a new strategy in November to focus on wealth management, rein in its investment bankers and curb a freewheeling culture.
"In the years ahead the strategy will be reviewed regularly, but at the moment it's not an issue at all," Axel Lehmann, a Credit Suisse board member picked to replace Horta-Osorio, told Reuters in a phone interview, his first with the media since his appointment.
The bank's shares were down around 1.3% in mid-morning trade.
The Portuguese banker's personal conduct has recently come under scrutiny, after he breached COVID-19 quarantine rules https://www.reuters.com/business/exclusive-credit-suisse-finds-second-breach-covid-19-rules-by-chairman-sources-2021-12-29 twice in 2021 - an embarrassment for a man who had stressed every banker needed to be a risk manager.
"I regret that a number of my personal actions have led to difficulties for the bank and compromised my ability to represent the bank internally and externally," Horta-Osorio said in a statement issued by Credit Suisse on Monday.
"I therefore believe that my resignation is in the interest of the bank and its stakeholders at this crucial time," the former CEO of Lloyds said..
Credit Suisse said Horta-Osorio resigned following an investigation commissioned by the board https://bit.ly/3fC7Flb, and that Lehmann had taken over with immediate effect.
It gave no details on the investigation.
Two people familiar with the situation said Horta-Osorio's behaviour, including his use of company private jets, was at the centre of the probe.
A spokesperson for Horta-Osorio said he was not speaking to the media.
Lehmann, a Swiss citizen who had worked for rival UBS and spent nearly two decades at Zurich Insurance Group , said no change of course was planned for Credit Suisse as it tries to steer its way back into calmer waters.
He said customer business remained excellent despite the latest upheaval and no big management changes were in the works, adding that Chief Executive Thomas Gottstein was "central to our ability to continue the transformation together".
The board concluded that it was time for Horta-Osorio to go, he said.
"We determined over the weekend - and he also thought about it - that it's just in the best interest for him but certainly for the bank as well to put this story behind us and he resigns."
DAMAGED GOODS
"It has been in the 'damaged goods' section for a while now," Justin Tang, head of Asian research at investment adviser United First Partners in Singapore, said about the bank.
"The irony of it is that Horta was hired to fix the reputational damage to Credit Suisse and revamp its risk taking culture in the bank," Tang added.
In December, Reuters reported that a preliminary internal bank investigation had found that Horta-Osorio attended the Wimbledon tennis finals in London in July without following Britain's quarantine rules.
Horta-Osorio also broke Swiss COVID-19 rules in November by leaving the country during a 10-day quarantine period, the bank said last month.
Public scrutiny of the actions of politicians and athletes has increased amid COVID-19 curbs as governments push to get their population vaccinated.
Tennis superstar Novak Djokovic https://www.reuters.com/lifestyle/sports/detained-djokovic-fight-australian-deportation-court-2022-01-14 left Australia on Sunday after a court upheld the government's decision to cancel his visa, capping days of drama over the country's COVID-19 entry rules and his unvaccinated status.
In Britain, Prime Minister Boris Johnson is under pressure to resign after admitting he attended staff drinks during a lockdown.
Investors had been hoping the bank's strategic changes would help lift the ailing Swiss bank's share price.
David Herro, portfolio manager at Harris Associates, Credit Suisse's third-biggest shareholder, told Reuters before Horta-Osorio's departure was announced that he believed the infractions were "minor".
"One of the reasons to invest in the business today, one of the most important reasons, is that there is a very capable and committed person in that seat that will turn this ship around," Harris told Reuters earlier this month.
"So, that's a very important reason to invest in the company. And if that person leaves, that very important reason leaves".
'WHAT A WASTE'
Reeling from a disastrous year, Credit Suisse posted a 21% fall in its third-quarter profit last year and warned of a loss for the final three months of 2021.
UBS, Switzerland's largest bank, however reported its highest quarterly profit in six years in the third quarter.
Credit Suisse shares have shed 23% over the past year, while UBS shares have soared 33% to a four-year high.
Horta-Osorio's sudden exit demoralised staff at Credit Suisse, with some questioning what was next for the bank.
"What a waste and again we make the headlines for the wrong reason," a senior Credit Suisse private banker said on condition of anonymity as he was not allowed to speak to media.
"In between we froze for one year waiting for the new strategy from the new man," he said.
(Reporting by Anshuman Daga and Oliver Hirt; Additional reporting by Sumeet Chatterjee in Hong Kong, Simon Jessop and Rachel Armstrong in London, John O'Donnell in Frankfurt, Brenna Hughes Neghaiwi in Zurich; Editing by Himani Sarkar and Tomasz Janowski)
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