UBS Chairman of the Board Marcel Ospel listens the Swiss bank's extraordinary general assembly in the St. Jakobshalle, Basel, in this Feb 27, 2008 file photo. Swiss bank UBS AG says it expects to post first quarter net losses of 12 billion Swiss francs (US$12.1 billion; euro 7.65 billion) and will seek 15 billion Swiss francs (US$15.1 billion; euro 9.55 billion) in new capital.Its chairman Marcel Ospel will step down. (AP Photo/Keystone, Alessandro Della Bella)

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