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Ioanna Trikalinou is an experienced financial professional with a strong background in accounting and finance. Currently serving as Group Controller at Upstream since October 2012, Ioanna has previously held the position of Senior Auditor at Ernst & Young from September 2009 to October 2012 and completed an internship at the National Bank of Greece in June 2005. Educational qualifications include a Master of Science (MSc) in Accounting and Finance from The London School of Economics and Political Science (LSE) obtained in 2009, and a Bachelor's degree in Accounting and Finance from Athens University of Economics and Business, completed in 2006. Additionally, Ioanna is associated with the ACCA - JES at the Association of Chartered Certified Accountants.