Ms. Calderon is a Director of Top Frontier Investment Holdings, Inc. (since 2013), the Treasurer (since 2010) and a member of the Audit and Risk Oversight Committee, and Related Party Transaction Committee (since 2017). She was a member of the Audit Committee and Executive Compensation Committee (2013-2017). She is also the Senior Vice President-Senior Executive Assistant to the President and Chief Operating Officer of San Miguel Corporation (since 2011); a Director of San Miguel Corporation (since 2014), Petron Corporation (since 2010), Petron Marketing Corporation (since 2010), Petron Freeport Corporation (since 2010), Sea Refinery Corporation (since 2010), New Ventures Realty Corporation (since 2010), Las Lucas Construction and Development Corp. (since 2010), Thai San Miguel Liquor Co. (since 2008), SMC Global Power Holdings Corp. (since 2010), San Miguel Equity Investments Inc. (since 2011), and Clariden Holdings, Inc. (since 2012). She was previously a consultant of San Miguel Corporation reporting directly to the President and Chief Operating Officer (1998-2010) and formerly a Director of Manila Electric Company (2009), PAL Holdings, Inc. (2012-2014), Philippine Airlines, Inc. (2012-2014) and Air Philippines Corporation (2012-2014). Ms. Calderon holds directorships in various subsidiaries of San Miguel Corporation. She graduated magna cum laude from the University of the East with a degree in B.S. Business Administration, Major in Accountancy.