BRUSSELS, Dec 3 (Reuters) - European Union antitrust regulators will impose multi-million euro fines on six banks including Citigroup, Deutsche Bank and Royal Bank of Scotland on Wednesday for rigging key interest rate benchmarks, sources said.
JPMorgan and Barclays were also in the group charged with manipulating the London interbank offered rate Libor and the Tokyo interbank offered rate Tibor, a person familiar with the matter said.
UBS alerted the yen interest rate derivatives wrongdoing to the European Commission and will not be penalised.
Deutsche Bank and Royal Bank of Scotland will also be penalised for rigging benchmark euro zone interest rates. French bank Societe Generale is also part of the group facing sanctions for alleged rigging of the rate known as Euribor.
HSBC and Credit Agricole are likely to be penalised next year after refusing to settle the case with the Commission. Barclays blew the whistle on the group and will not be fined. Reuters reported the imminent Euribor fines on Nov. 5.
EU Competition Commissioner Joaquin Almunia is expected to announce the fines for the three cases at 1030 GMT on Wednesday, a second person said.
Barclays, Deutsche Bank, Societe Generale, RBS and JPMorgan declined to comment. HSBC and Credit Agricole were not immediately available to comment. Commission spokesman for competition policy Antoine Colombani could not be immediately reached for comment.