BRIEF-Tesco CEO says "likely, though not certain" U.S. presence will end

LONDON Wed Dec 5, 2012 2:42am EST

LONDON Dec 5 (Reuters) - Tesco PLC : * CEO says "likely, though not certain" presence in U.S. will come to an end * CEO says "it felt like the right time for Tim (Mason) to leave" company * CFO says firm has not yet defined preferred option for Fresh & Easy

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